cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Bias-Free, Stand-Alone, and Scalable Photovoltaic–Electrochemical Device for Solar Hydrogen Production
Creators: name: Lee, Minoh
name: Turan, Bugra
name: Becker, Jan-Philipp
name: Welter, Katharina
name: Klingebiel, Benjamin
name: Neumann, Elmar
name: Sohn, Yoo Jung
name: Merdzhanova, Tsvetelina
name: Kirchartz, Thomas
name: Finger, Friedhelm
name: Rau, Uwe
name: Haas, Stefan
Publisher: name: FID GEO
Year: 2020

description: Abstract Although photovoltaic–electrochemical (PV–EC) water splitting is likely to be an important and powerful tool to provide environmentally friendly hydrogen, most developments in this field have been conducted on a laboratory scale so far. In order for the technology to make a sizeable impact on the energy transition, scaled up devices must be developed. Here a scalable (64 cm2 aperture area) artificial PV–EC device composed of triple-junction thin-film silicon solar cells in conjunction with an electrodeposited bifunctional nickel iron molybdenum water-splitting catalyst is shown. The device shows a solar to hydrogen efficiency of up to 4.67% (5.33% active area, H2 production rate of 1.26 μmol H2/s) without bias assistance and wire connection and works for 30 min. The gas separation is enabled by incorporating a membrane in a 3D printed device frame. In addition, a wired small area device is also fabricated in order to show the potential of the concept. The device is operated for 127 h and initially 7.7% solar to hydrogen efficiency with a PV active area of 0.5 cm2 is achieved.
A survey of the regular weighted Sturm-Liouville problem - The non-definite case
Creators: name: Mingarelli, Angelo B.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: This is a survey of the non-definite Sturm-Liouville problem from its inception in the early 1900's until 1986.
description: This paper is hard to get at so this a preprint version of the published 1986 paper with typographical corrections in
Monitoring of Cell Layer Integrity with a Current-Driven Organic Electrochemical Transistor
Creators: name: Lingstedt, Leona V.
name: Ghittorelli, Matteo
name: Brückner, Maximilian
name: Reinholz, Jonas
name: Cr?Ciun, N. Irina
name: Torricelli, Fabrizio
name: Mailänder, Volker
name: Gkoupidenis, Paschalis
name: Blom, Paul W. M.
Publisher: name: FID GEO
Year: 2019

description: Abstract The integrity of CaCo-2 cell barriers is investigated by organic electrochemical transistors (OECTs) in a current-driven configuration. Ion transport through cellular barriers via the paracellular pathway is modulated by tight junctions between adjacent cells. Rupturing its integrity by H2O2 is monitored by the change of the output voltage in the transfer characteristics. It is demonstrated that by operating the OECT in a current-driven configuration, the sensitive and temporal resolution for monitoring the cell barrier integrity is strongly enhanced as compared to the OECT transient response measurement. As a result, current-driven OECTs are useful tools to assess dynamic and critical changes in tight junctions, relevant for clinical applications as drug targeting and screening.
Agricultural Pesticide Use: Trends and Policy Issues
Creators: name: Osteen, Craig D.
name: Szmedra, Philip I.
name: Osteen, Craig D.
name: Szmedra, Philip I.
Publisher: name: Unknown
Year: 1989
Subjects: subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: Demand and Price Analysis
subject: Environmental Economics and Policy
subject: Pesticides
subject: insecticides
subject: herbicides
subject: pesticide productivity
subject: pesticide regulation
subject: commodity programs
subject: benefit assessment

description: Pesticides used on major crops increased from 225 million pounds of active ingredient (the material in a pesticide product that controls pests) in 1964 to 558 million pounds in 1982. Rapid growth in the use of herbicides led that dramatic increase. Farmers increased their use of pesticides on corn and soybeans to a greater extent than on other crops during that period. Insecticide use on cotton fell, probably because the pyrethroid insecticides, which are applied at low rates, were introduced in the late 1970's. Since 1980, pesticide use has stabilized or declined. Regulatory decisions that removed pesticides from the market if health or environmental risks outweighed the economic benefits may have reduced the variety of pesticides available to farmers. But, those decisions apparently have not slowed the growth of pesticide use
Robust neutralizing antibodies to SARS-CoV-2 develop and persist in subjects with diabetes and COVID-19 pneumonia
Creators: name: Piemonti, Lorenzo
Publisher: name: figshare
Year: 2020
Subjects: subject: 110306 Endocrinology
subject: FOS: Clinical medicine

description: Supplementary material for the article Robust neutralizing antibodies to SARS-CoV-2 develop and persist in subjects with diabetes and COVID-19 pneumonia Stefania Dispinseri, Vito Lampasona, Massimiliano Secchi, Andrea Cara, Elena Bazzigaluppi, Donatella Negri, Cristina Brigatti, Maria Franca Pirillo, Ilaria Marzinotto, Martina Borghi, Cristina Tresoldi, Fabio Ciceri, Marina Scavini, Gabriella Scarlatti, Lorenzo Piemonti
The Impact of Economic Policy and Political Risk on Economic Growth and Stock Returns: Evidence from Thailand
Creators: name: Yuthana Sethapramote
Publisher: name: Kasetsart Business School
Year: 2022
Subjects: Political Risk, Economic Policy Uncertainty, Geo-political Risk, Trade PolicyUncertainty, Economic Growth, Financial Market, Thailand

description: Kasetsart Applied Business Journal, 15, 23, 99-120.
Strategies for Analyzing Noncommon-Atom Heterovalent Interfaces: The Case of CdTe-on-InSb
Creators: name: Luna, Esperanza
name: Trampert, Achim
name: Lu, Jing
name: Aoki, Toshihiro
name: Zhang, Yong-Hang
name: McCartney, Martha R.
name: Smith, David J.
Publisher: name: FID GEO
Year: 2019

description: Abstract Semiconductor heterostructures are intrinsic to a wide range of modern-day electronic devices, such as computers, light-emitting devices, and photodetectors. Knowledge of chemical interfacial profiles in these structures is critical to the task of optimizing the device performance. This work presents an analysis of the composition profile and strain across the noncommon-atom heterovalent CdTe/InSb interface, carried out using a combination of electron microscopy imaging techniques. Because of the close atomic numbers of the constituent elements, techniques such as high-angle annular-dark-field and large-angle bright-field scanning transmission electron microscopy, as well as electron energy-loss spectroscopy, give results from the interface region that are inherently difficult to interpret. By contrast, use of the 002 dark-field imaging technique emphasizes the interface location by comparing differences in structure factors between the two materials. Comparisons of experimental and simulated CdTe-on-InSb profiles reveal that the interface is structurally abrupt to within about 1.5 nm (10–90% criterion), while geometric phase analysis based on aberration-corrected electron microscopy images reveals a minimal level of interfacial strain. The present investigation opens new routes to the systematic investigation of heterovalent interfaces, formed by the combination of other valence-mismatched material systems.
Differential cross sections and spin density matrix elements for gamma p -> phi p from CLAS
Creators: name: Dey, Biplab
name: Meyer, Curtis A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Preliminary differential cross-sections and the $ρ^0_{MM'}$ spin density matrix elements (SDME) for the reaction $γp \to ϕp$ for both charged- ($ϕ\to K^+ K^-$) and neutral-mode ($ϕ\to K^0_L K^0_S$) topologies obtained from CLAS are presented. Our kinematic coverage is from near production threshold ($\sqrt{s} \sim 1.97$ GeV) to $\sqrt{s} = 2.84$ GeV, with a wide coverage in the production angle. As seen in previous LEPS results, the differential cross-sections show a localized "bump" between $\sqrt{s} \sim 2$ and 2.2 GeV that is not expected from a simple Pomeron exchange picture. Comparisons between the charged- and neutral-mode results and possible effects from the $K^+ Λ(1520)$ channel are discussed. Our SDME results confirm the well-known deviations from t-channel helicity conservation (TCHC) for Pomeron exchange, but s-channel helicity conservation (SCHC) is also seen to be broken.
description: Contribution to the proceedings of International conference on the structure of baryons (BARYONS'10), Osaka, Japan, Dec. 7-11, 2010
JNeurophys_SupplementalTables_S1-S3.docx
Creators: name: Lertpoompunya, Angkana
Publisher: name: figshare
Year: 2022
Subjects: subject: 110999 Neurosciences not elsewhere classified
subject: FOS: Clinical medicine

description: Supplemental Table S1:separate ANOVA results for each component of the waveform, N1 and P2. Supplemental Table S2: paired t-test results of all IAC-change levels.
Supplemental Table S3: individual N1, P2 results.
Etablierung von OSI-Layer 2 Punkt-zu-Punkt-Verbindungen mittels Service-Discovery unter Android
Creators: name: Bölke, Willi
Publisher: name: Zenodo
Year: 2022
Subjects: P2P, Ad-hoc Networks, MANET

description: Das Ziel dieser Arbeit war es eine Softwarekomponente zu entwickeln, welche eine Service-Discovery
 für Bluetooth und Wi-Fi Direct Services in der Umgebung ermöglicht, um so weitere Instanzen einer
 Android-Anwendung oder andere, benötigte Dienste zu finden. Ebenso sollte eine darauf aufbauende
 Erweiterung entwickelt werden, um automatisiert P2P-Verbindungen zu diesen Services aufzubauen.
 Diese Komponente soll das bisher in ASAPAndroid verwendete Verfahren der Peer-Discovery ersetzen
 und ebenso für weitere Anwendungen nutzbar sein.
description: Bachelor Thesis
Effects of Conventional Uric Acid–Lowering Therapy on Monosodium Urate Crystal Deposits
Creators: name: Ellmann, Hanna
name: Bayat, Sara
name: Araujo, Elizabeth
name: Manger, Bernhard
name: Kleyer, Arnd
name: Cavallaro, Alexander
name: Lell, Michael
name: Schenker, Hannah
name: Simon, David
name: Tascilar, Koray
name: Baraf, Herbert S. B.
name: Schett, Georg
name: Rech, Jürgen
Publisher: name: FID GEO
Year: 2019

description: Objective Few studies have systematically and quantitatively addressed the impact of urate-lowering therapy on monosodium urate (MSU) deposits. This study was undertaken to analyze the effect of lifestyle measures and conventional urate-lowering therapy on MSU deposits in patients with gout. Methods In this prospective study, subjects with gout according to the American College of Rheumatology/European League Against Rheumatism classification criteria and presence of MSU deposits seen on dual-energy computed tomography (DECT) scans received either lifestyle intervention or conventional urate-lowering therapy for a mean period of 18 months before a follow-up DECT scan. Detected MSU deposits were quantified by volumetric measurement and validated by semiquantitative scoring, and baseline and follow-up measurements were compared. Results Baseline and follow-up DECT scans were available for all 83 subjects. Six subjects discontinued treatment, and 77 subjects underwent a lifestyle intervention (n = 24) or were treated with allopurinol (n = 29), febuxostat (n = 22), or benzbromarone (n = 2) over the entire observation period. The mean serum uric acid (UA) level decreased from 7.2 to 5.8 mg/dl in the overall population. In patients who discontinued treatment, no change in MSU deposits or serum UA levels was observed. The burden of MSU deposits significantly decreased in patients undergoing lifestyle intervention (MSU volume P = 0.007; MSU score P = 0.001), and in patients treated with allopurinol (MSU volume and score P < 0.001) or febuxostat (MSU volume P < 0.001; MSU score P = 0.001). No significant decline in MSU deposits was noted in patients who discontinued treatment. Conclusion These data show that lifestyle intervention and xanthine oxidase inhibitors significantly decrease the MSU deposit burden. Hence, conventional gout therapy not only lowers serum UA levels, but also reduces pathologic MSU deposits.
Dynamics, Spectral Geometry and Topology
Creators: name: Burghelea, Dan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Dynamical Systems (math.DS)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: The paper is an informal report on joint work with Stefan Haller on Dynamics in relation with Topology and Spectral Geometry. By dynamics one means a smooth vector field on a closed smooth manifold; the elements of dynamics of concern are the rest points, instantons and closed trajectories. One discusses their counting in the case of a generic vector field which has some additional properties satisfied by a still very large class of vector fields.
description: 12 pages, lecture presented at the "Alexandru Myller" Mathematical Seminar Centennial Conference, June 21-26, 2010, Iasi, Romania
Research on the Balance of Urban Benchmark Land Price in Henan Province:A Case Study of Commercial Land
Creators: name: TIAN Yan
name: SONG Lisheng
name: WANG Ziwei
name: WANG Lei
name: YANG Xihui
name: YANG Qingwei
name: TIAN Yan
name: SONG Lisheng
name: WANG Ziwei
name: WANG Lei
name: YANG Xihui
name: YANG Qingwei
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agribusiness
subject: Benchmark land price, Balance, Commercial land, Henan Province

description: The balance of benchmark land price is an important part of the work of urban benchmark land price. By constructing different levels of factor layers, the balance of benchmark land price of urban commercial land in the urban areas of 18 provincial cities in Henan Province was studied. The urban areas were divided into 5 classes. It is found that the land price level in each urban area is basically consistent with the level of economic development, and the land price in some urban areas is low under the influnece of local policy.
A new hydrate of magnesium carbonate, MgCO3·6H2O
Creators: name: Rincke, Christine
name: Schmidt, Horst
name: Voigt, Wolfgang
Publisher: name: FID GEO
Year: 2020

description: During investigations of the formation of hydrated magnesium carbonates, a sample of the previously unknown magnesium carbonate hexahydrate (MgCO3·6H2O) was synthesized in an aqueous solution at 273.15 K. The crystal structure consists of edge-linked isolated pairs of Mg(CO3)(H2O)4 octahedra and noncoordinating water molecules, and exhibits similarities to NiCO3·5.5H2O (hellyerite). The recorded X-ray diffraction pattern and the Raman spectra confirmed the formation of a new phase and its transformation to magnesium carbonate trihydrate (MgCO3·3H2O) at room temperature.
Few-body resonances of unequal-mass systems with infinite interspecies two-body s-wave scattering length
Creators: name: Blume, D.
name: Daily, K. M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Two-component Fermi and Bose gases with infinitely large interspecies s-wave scattering length $a_s$ exhibit a variety of intriguing properties. Among these are the scale invariance of two-component Fermi gases with equal masses, and the favorable scaling of Efimov features for two-component Bose gases and Bose-Fermi mixtures with unequal masses. This paper builds on our earlier work [D. Blume and K. M. Daily, arXiv:1006.5002] and presents a detailed discussion of our studies of small unequal-mass two-component systems with infinite $a_s$ in the regime where three-body Efimov physics is absent. We report on non-universal few-body resonances. Just like with two-body systems on resonance, few-body systems have a zero-energy bound state in free space and a diverging generalized scattering length. Our calculations are performed within a non-perturbative microscopic framework and investigate the energetics and structural properties of small unequal-mass two-component systems as functions of the mass ratio $κ$, and the numbers $N_{1}$ and $N_2$ of heavy and light atoms. For purely attractive Gaussian two-body interactions, we find that the $(N_1,N_2)=(2,1)$ and $(3,1)$ systems exhibit three-body and four-body resonances at mass ratios $κ= 12.314(2)$ and 10.4(2), respectively. The three- and four-particle systems on resonance are found to be large. This suggests that the corresponding wave function has relatively small overlap with deeply-bound dimers, trimers or larger clusters and that the three- and four-body systems on resonance have a comparatively long lifetime. Thus, it seems feasible that the features discussed in this paper can be probed experimentally with present-day technology.
description: 17 pages, 17 figures
Learnscapes on Kaua'i : education at a Hawaiian-focused charter school, a food sovereignty movement, and the agricultural biotechnology industry.
Creators: name: Gugganig, Mascha
Publisher: name: University of British Columbia
Year: 2016

description: This dissertation interrogates the different forms that education takes in regards to land across three different settings on the Hawaiian island of Kauaʻi: a Hawaiian-focused charter school, a food sovereignty movement, and the agricultural biotechnology industry. As ethnographic researcher, I approached Kauaʻi about 15 years after three seemingly parallel developments had commenced: the establishment of Hawaiian-focused charter schools to educate Kānaka Maoli (Native Hawaiians) students on their culture, language and history, a “New Economy” resulting among other changes in a shift in agriculture to research and develop genetically modified organisms (GMOs), and a burgeoning social movement concerned about the impacts of GMOs. Following these developments, I argue that education as a term and transinstitutional practice has populated social, cultural and scientific discourses beyond the school. In effect, and at times in overlapping ways, I show that education was firstly a means of self-determination and sovereign right for Indigenous educators to move teaching and learning into the public sphere and onto the ʻāina, land. Secondly, education emerged as democratic right for consumers, environmentalists, and food producers, who practiced self-education – by “educating yourself” – on contested food technologies. Thirdly, among scientists and industrialists, education was both a corrective effort of public misconceptions of biotechnology – by “educating the public” - and a process of community building as to demonstrate a legitimate presence in Hawaiʻi. I further probe what it means for high school students at a Hawaiian-focused charter school to learn to be young Kānaka Maoli while learning about ʻāina (land), aloha (love, affection), andʻohana (family). Through the concept of learnscapes, I indicate that these knowledge ways are not assessed in school education. Rather, the students learned in often inconspicuous ways how to navigate remediation and recovery for land and people, which in times of the “New Economy” and in the colonial aftermath remain pressing issues. Situated in the anthropology of education and science & technology studies (STS), this dissertation furthers scholarship on everyday expertise by elucidating how young Kānaka Maoli as much as citizens concerned with GMOs are knowledge-able social experts, who gain often tacit forms of expertise on their lived-in worlds.
Distribution of Land Increment Income from Marketing Rural Collective Land for Development Purposes:A Case Study of Changyuan City
Creators: name: YUAN Chenguang
name: WANG Lingchao
name: SONG Yanhua
name: WANG Ziwei
name: TIAN Yan
name: YUAN Chenguang
name: WANG Lingchao
name: SONG Yanhua
name: WANG Ziwei
name: TIAN Yan
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agribusiness
subject: Rural collective land for development purposes, Land increment income, Rational distribution, Analytic hierarchy process

description: In order to protect the property rights and interests of farmers, promote the revitalization and development of rural areas, and provide a reference basis for the reform of marketing rural collective land for development purposes, this study explores the reasonable distribution proportion of land increment income from marketing rural collective land for development purposes through analytic hierarchy process and Delphi expert scoring method. The results show that there is a positive correlation between land increment income and land grade, that is, the higher the land grade, the higher the increment income, the larger the proportion of increment income to the transaction price. According to the calculation, when marketing rural collective land for development purposes, the reasonable distribution proportion of the land increment income of the government and the village collective is 28.6% and 71.4%, respectively, and the land increment income actually obtained by farmers has been greatly improved compared with the current situation. In practice, this distribution model has universal applicability and long-term mechanism. The reform of marketing also needs to improve the standard of marketing, explore diversified channels to protect interests, and strengthen the construction of rural collective management system. In short, the distribution of land increment income from marketing rural collective land for development purposes should proceed from the perspective of land property rights and the factors affecting the price of collective land for development purposes, in order to build a reasonable income distribution model.
Autoimmune diseases and immunosuppressive therapy in relation to the risk of glioma
Creators: name: Anssar, Tareq M.
name: Leitzmann, Michael F.
name: Linker, Ralf A.
name: Meier, Christoph
name: Becker, Claudia
name: Jick, Susan
name: Sahm, Katharina
name: Platten, Michael
name: Hau, Peter
name: Seliger, Corinna
Publisher: name: FID GEO
Year: 2019

description: Abstract Effectors from the immune system can modulate the course and possibly the early development of gliomas. We, therefore, hypothesized that autoimmune diseases associated with increased immune-surveillance may also modulate the risk of human glioma. To test this hypothesis, we used data from the well-validated Clinical Practice Research Datalink (CPRD) GOLD from the UK to analyze the association of immune-related disorders or use of immunosuppressive drugs and the risk of glioma. We identified 3112 incident glioma cases diagnosed between 1995 and 2017. We randomly selected up to 10 controls, matching them to glioma cases on age, sex, index date, general practice, and number of years of active history in the database prior to the index date. We performed conditional logistic regression analyses to estimate Odds Ratios (ORs) of glioma among those exposed to allergies, autoimmune diseases, and immunosuppressive drugs. Overall, we found no materially altered association between a history of any autoimmune disease (OR 0.98, 95% CI 0.86-1.11), allergy (OR 0.97, 95% CI 0.89-1.05), or use of immunosuppressive drugs and the risk of glioma. However, subgroup analyses among younger patients found a statistically significant increased risk of glioma in patients with a history of inflammatory bowel disease (IBD) (OR 2.59, 95% CI 1.31-5.12). There was also an inverse association between asthma and risk of glioma in patients with longer survival (OR 0.73, 95% CI 0.58-0.91) and between long-term duration diabetes and risk of glioma (OR 0.71, 95% CI 0.53-0.96).
Holonomy observables in Ponzano-Regge type state sum models
Creators: name: Barrett, John W.
name: Hellmann, Frank
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study observables on group elements in the Ponzano-Regge model. We show that these observables have a natural interpretation in terms of Feynman diagrams on a sphere and contrast them to the well studied observables on the spin labels. We elucidate this interpretation by showing how they arise from the no-gravity limit of the Turaev-Viro model and Chern-Simons theory.
description: 15 pages, 2 figures
Solomon's induction in quasi-elementary groups
Creators: name: Dokchitser, Tim
Publisher: name: arXiv
Year: 2010
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 19A22 (Primary), 20F16 (Secondary)

description: Given a finite group G, we address the following question: which multiples of the trivial representation are linear combinations of inductions of trivial representations from proper subgroups of G? By Solomon's induction theorem, all multiples are if G is not quasi-elementary. We complement this by showing that all multiples of p are if G is p-quasi-elementary and not cyclic, and that this is best possible.
description: 2 pages, to appear in J. Group Theory
Neck Pain due to Technology-NYMG Publishes a Solution to Ease the Pain in the Neck
Creators: name: Yun, Steve
Publisher: name: figshare
Year: 2022
Subjects: subject: 111712 Health Promotion
subject: FOS: Health sciences
subject: Health Care
subject: 110401 Chiropractic
subject: FOS: Clinical medicine

description: New York Medical Group (NYMG) published a 2022 case study in an University of Washington journal (17) which included an “S” shaped neck x-ray where researchers found a strongassociation between the text neck and neck deformity on x-ray. Sustained flexion of the neck will cause cervical spine distortion.
Dynamics in Science-Based Markets: Two Phases of Development
Creators: name: Haller, Inna
Publisher: name: Karlsruhe
Year: 2009
Subjects: science-based technologies
science-push and demand-pull phases

description: This thesis analyzes the development of science-based (SB) technologies. In general, technology evolution is influenced by different factors. There are two different development phases in the SB technology cycle. The first phase is denoted as the science-push and the second as the demand-pull phase. Most studies dealing with the evolution of SB technologies are of rather descriptive nature. The aim of this thesis is the identification and quantification of the differences in the two phases.
Transferrin-Coated Nanodiamond–Drug Conjugates for Milliwatt Photothermal Applications
Creators: name: Harvey, Sean
name: Raabe, Marco
name: Ermakova, Anna
name: Wu, Yingke
name: Zapata, Todd
name: Chen, Chaojian
name: Lu, Hao
name: Jelezko, Fedor
name: Ng, David Y. W.
name: Weil, Tanja
Publisher: name: FID GEO
Year: 2019

description: Abstract Fluorescent nanodiamonds (fNDs) are unique carbon-based nanomaterials due to their outstanding optical and magnetic properties. However, realization of the full potential of fNDs is often limited by their processability because fNDs aggregate strongly in both organic and aqueous solutions. Therefore, robust and potentially universal coating strategies are urgently needed to address these limitations. Derived from mussel foot proteins, the polymerization of l-3,4-dihydroxyphenylalanine (l-DOPA) provides important surface functional groups including amines, carboxylic acid, alcohols, and conjugated Michael acceptors. Herein, l-DOPA is polymerized on fNDs with a high control over the shell thickness. Photoluminescence and optically detected magnetic resonance studies reveal that the unique photophysical properties of fNDs are preserved after thin poly(l-DOPA) film coating. Subsequently, conjugation of transferrin, a heme protein that provides efficient receptor-specific cellular transport, improves the colloidal stability and cellular uptake of the poly(l-DOPA)-coated fNDs. The loading of FDA-approved indocyanine green as a photothermal agent yields an integrated biohybrid material exhibiting an amplified photothermal effect in cells at very low energy intake (≈90 mW cm−2).
COSMOS weak-lensing constraints on modified gravity
Creators: name: Tereno, Ismael
name: Semboloni, Elisabetta
name: Schrabback, Tim
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The observed acceleration of the universe, explained through dark energy, could alternatively be explained through a modification of gravity that would also induce modifications in the evolution of cosmological perturbations. We use new weak lensing data from the COSMOS survey to test for deviations from General Relativity. The departure from GR is parametrized in a model-independent way that consistently parametrizes the two-point cosmic shear amplitude and growth. Using CMB priors, we perform a likelihood analysis. We find constraints on the amplitude of the signal that do not indicate a deviation from General Relativity.
description: 6 pages. Submitted to A&A
The effect of extreme confinement on the nonlinear-optical response of quantum wires
Creators: name: Shafei, Shoresh
name: Kuzyk, Mark G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This work focuses on understanding the nonlinear-optical response of a 1-D quantum wire embedded in 2-D space when quantum-size effects in the transverse direction are minimized using an extremely weighted delta function potential. Our aim is to establish the fundamental basis for understanding the effect of geometry on the nonlinear-optical response of quantum loops that are formed into a network of quantum wires. Using the concept of leaky quantum wires, it is shown that in the limit of full confinement, the sum rules are obeyed when the transverse infinite-energy continuum states are included. While the continuum states associated with the transverse wavefunction do not contribute to the nonlinear optical response, they are essential to preserving the validity of the sum rules. This work is a building block for future studies of nonlinear-optical enhancement of quantum graphs (which include loops and bent wires) based on their geometry. These properties are important in quantum mechanical modeling of any response function of quantum-confined systems, including the nonlinear-optical response of any system in which there is confinement in at leat one dimension, such as nanowires, which provide confinement in two dimensions.
Messung klimarelevanter optischer Eigenschaften von Mineralstaub im Labor
Creators: name: Vragel, Marlen
Publisher: name: Karlsruhe
Year: 2009
Subjects: Mineralstaub
Optik
Nephelometer
Absorption
Hämatit

description: In einer Aerosolkammer wurden die optischen Eigenschaften zweier Wüstenstäube untersucht. Ein integrierendes Nephelometer eignet sich nicht zur Absorptionsbestimmung der Stäube. Die unterschiedlichen Absorptionseigenschaften der Stäube sind durch Unterschiede im Eisenoxidgehalt bedingt. Mit asphärischen Hämatitpartikeln wurde nachgewiesen, dass die Partikelform zwar zum spektralen Extinktionsverhalten beiträgt. Die Extinktionsspektren können dennoch mit der Mie-Theorie behandelt werden.
Synthesis of Indomorphan Pseudo-Natural Product Inhibitors of Glucose Transporters GLUT-1 and -3
Creators: name: Ceballos, Javier
name: Schwalfenberg, Melanie
name: Karageorgis, George
name: Reckzeh, Elena S.
name: Sievers, Sonja
name: Ostermann, Claude
name: Pahl, Axel
name: Sellstedt, Magnus
name: Nowacki, Jessica
name: Carnero Corrales, Marjorie A.
name: Wilke, Julian
name: Laraia, Luca
name: Tschapalda, Kirsten
name: Metz, Malte
name: Sehr, Dominik A.
name: Brand, Silke
name: Winklhofer, Konstanze
name: Janning, Petra
name: Ziegler, Slava
name: Waldmann, Herbert
Publisher: name: FID GEO
Year: 2019

description: Abstract Bioactive compound design based on natural product (NP) structure may be limited because of partial coverage of NP-like chemical space and biological target space. These limitations can be overcome by combining NP-centered strategies with fragment-based compound design through combination of NP-derived fragments to afford structurally unprecedented “pseudo-natural products” (pseudo-NPs). The design, synthesis, and biological evaluation of a collection of indomorphan pseudo-NPs that combine biosynthetically unrelated indole- and morphan-alkaloid fragments are described. Indomorphane derivative Glupin was identified as a potent inhibitor of glucose uptake by selectively targeting and upregulating glucose transporters GLUT-1 and GLUT-3. Glupin suppresses glycolysis, reduces the levels of glucose-derived metabolites, and attenuates the growth of various cancer cell lines. Our findings underscore the importance of dual GLUT-1 and GLUT-3 inhibition to efficiently suppress tumor cell growth and the cellular rescue mechanism, which counteracts glucose scarcity.
An Examination of Recent Transformations to the BV(RI)_C Photometric System from the Perspective of Stellar Models for Old Stars
Creators: name: VandenBerg, Don A.
name: Casagrande, Luca
name: Stetson, Peter B.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Isochrones for ages > 4 Gyr and metallicities in the range -2.5 < [Fe/H] < +0.3 that take the diffusion of helium and recent advances in stellar physics into account are compared with observations in the Johnson-Cousins BV(RI)_C photometric system for several open and globular star clusters. The adopted color-Teff relations include those which we have derived from the latest MARCS model atmospheres and empirical transformations for dwarf and subgiant stars given by Casagrande et al (2010, A&A, 512, 54; CRMBA). Those reported by VandenBerg & Clem (2003, AJ, 126, 778) have also been considered, mainly to resolve some outstanding questions concerning them. Remarkably, when the subdwarfs in the CRMBA data set that have sigma_pi/pi < 0.15 are superimposed on a set of 12 Gyr isochrones spanning a wide range in [Fe/H], the inferred metallicities and effective temperatures agree, in the mean, with those given by CRMBA to within +/- 0.05 dex and +/- 10 K, respectively. Thus the hot Teff scale derived by CRMBA is nearly identical with that predicted by stellar models and consequently, there is excellent consistency between theory and observations on the H-R diagram and the different color-magnitude diagrams considered in this investigation. To obtain similar consistency, the colors obtained from the MARCS and VandenBerg & Clem B-V vs. Teff relations for metal-poor dwarf stars should be adjusted to the red by 0.02-0.03 mag. In general, isochrones that employ the CRMBA transformations provide reasonably good fits to our BV(RI)_C photometry for main-sequence stars in the globular clusters 47 Tuc, M3, M5, M92 and NGC 1851 - but not the cluster giants (when adopting the synthetic MARCS colors). We speculate that differences between the actual heavy-element mixtures and those assumed in the theoretical models may be the primary cause of this difficulty.
description: To appear in 2010, AJ, 140, 1020
Interferometrische Bestimmung der Funduspulsation des menschlichen Auges
Creators: name: Malz, André
Publisher: name: Karlsruhe
Year: 2009
Subjects: Funduspulsation
Auge
Retina
Speckle
Phasenschätzung

description: In der vorliegenden Dissertation wurde ein prototypisches Messverfahren realisiert, welches aus interferometrischen Messdaten die Funduspulsation automatisch bestimmt. Es wurden Algorithmen entwickelt, welche aus den gemessenen Interferogrammen die Funduspulsation bestimmen und dabei robust gegen auftretende Speckle sind.
Mechanotunable Plasmonic Properties of Colloidal Assemblies
Creators: name: Brasse, Yannic
name: Gupta, Vaibhav
name: Schollbach, H. C. Tomohiro
name: Karg, Matthias
name: König, Tobias A. F.
name: Fery, Andreas
Publisher: name: FID GEO
Year: 2019

description: Abstract Noble metal nanoparticles can absorb incident light very efficiently due to their ability to support localized surface plasmon resonances (LSPRs), collective oscillations of the free electron cloud. LSPRs lead to strong, nanoscale confinement of electromagnetic energy which facilitates applications in many fields including sensing, photonics, or catalysis. In these applications, damping of the LSPR caused by inter- and intraband transitions is a limiting factor due to the associated energy losses and line broadening. The losses and broad linewidth can be mitigated by arranging the particles into periodic lattices. Recent advances in particle synthesis, (self-)assembly, and fabrication techniques allow for the realization of collective coupling effects building on various particle sizes, geometries, and compositions. Beyond assemblies on static substrates, by assembling or printing on mechanically deformable surfaces a modulation of the lattice periodicity is possible. This enables significant alteration and tuning of the optical properties. This progress report focuses on this novel approach for tunable spectroscopic properties with a particular focus on low-cost and large-area fabrication techniques for functional plasmonic lattices. The report concludes with a discussion of the perspectives for expanding the mechanotunable colloidal concept to responsive structures and flexible devices.
The effect of the Polyakov loop on the chiral phase transition
Creators: name: Marko, G.
name: Szep, Zs.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Polyakov loop is included in the SU(2)_L x SU(2)_R chiral quark-meson model by considering the propagation of the constituent quarks, coupled to the (sigma,pi) meson multiplet, on the homogeneous background of a temporal gauge field, diagonal in color space. The model is solved at finite temperature and quark baryon chemical potential both in the chiral limit and for the physical value of the pion mass by using an expansion in the number of flavors N_f. Keeping the fermion propagator at its tree-level, a resummation on the pion propagator is constructed which resums infinitely many orders in 1/N_f, where O(1/N_f) represents the order at which the fermions start to contribute in the pion propagator. The influence of the Polyakov loop on the tricritical or the critical point in the mu_q-T phase diagram is studied for various forms of the Polyakov loop potential.
description: 8 pages, 3 figures, uses svepjCONF.clo, contribution to the International Workshop on Hot & Cold Baryonic Matter 2010, 15-20 August, Budapest, Hungary
Einfluss der Abwassertemperatur auf Bemessung, Auslegung und Reinigungsleistung von Scheibentauchkörpern
Creators: name: Blank, Andreas
Publisher: name: Karlsruhe
Year: 2009
Subjects: Temperatureinfluss
Scheibenbelastung
Scheibentauchkörper
Biofilm
Bemessungsempfehlung

description: In der vorliegenden Arbeit wurde im Wesentlichen der Einfluss von Abwasser- und Lufttemperatur auf die Reinigungsleistung bzw. auf die Umsatzraten von Scheibentauchkörpern quantifiziert. Auf Basis der gewonnenen Erkenntnisse aus den Untersuchungen im Labormaßstab und einem Demonstrationsbetrieb in Indien wurde eine Bemessungsempfehlung - in Anlehnung an das ATV-DVWK-Arbeitsblatt A-281 - für den Betrieb von Scheibentauchkörpern bei unterschiedlichen Abwassertemperaturen erstellt.
Information Extraction and Modeling from Remote Sensing Images: Application to the Enhancement of Digital Elevation Models
Creators: name: Maire, Cyrille
Publisher: name: Karlsruhe
Year: 2009
Subjects: Image analysis
image segmentation and topology
information extraction and modeling
DEM regularization and filtering

description: To deal with high complexity data such as remote sensing images presenting metric resolution over large areas, an innovative, fast and robust image processing system is presented. 
The modeling of increasing level of information is used to extract, represent and link image features to semantic content.
The potential of the proposed techniques is demonstrated with an application to enhance and regularize digital elevation models based on information collected from RS images.
Regulation of cerebral blood flow during transient hypertension in humans
Creators: name: Wildfong, Kevin Wayne
Publisher: name: University of British Columbia
Year: 2016

description: Although the role of sympathetic nervous activity (SNA) in cerebral blood flow (CBF) regulation is poorly understood in humans, animal studies have demonstrated that elevations in cerebral SNA may protect against cerebral hyper-perfusion during elevations in blood pressure (BP). We examined the hypothesis that alpha-1 receptor blockade (Prazosin) would augment increases in CBF during acute hypertension. In 15 healthy volunteers, beat-by-beat BP, extra-cranial artery blood flow (internal carotid artery (QICA) & vertebral artery (QVA)), intra-cranial artery velocity (middle cerebral artery (MCAv) & posterior cerebral artery (PCAv)), and end-tidal gases (PETO₂ & PETCO₂) were controlled before and 90 min following oral Prazosin (1mg/20kg) at rest and during transient hypertension. Hypertension was non-pharmacologically induced using 30% maximal voluntary contraction (MVC) handgrip exercise (HG), lower-body positive pressure (LBPP), and combined LBPP & HG (LBPP+HG). Following Prazosin administration, baseline PETCO₂ (-1 mmHg), MAP (-7 mmHg) & MCAv (-5 cm/sec) were all significantly reduced (P<0.05), while PCAv, QICA and QVA and respective diameter were all unchanged; VA velocity was reduced (P=0.03), while ICA velocity was unchanged (P=0.96). Following Prazosin, MAP during 30% MVC HG was unchanged while MAP was significantly reduced during LBPP (-29 ± 68%) and LBPP+HG (-40 ± 38%); despite these changes in MAP, MCAv, PCAv, QICA & QVA all remained unchanged (P>0.05). There was significant attenuation of absolute PCAv CVC following Prazosin during LBPP and LBPP+HG (Δ0.036 ± 0.032 vs. Δ0.007 ± 0.019 & Δ0.053 ± 0.04 vs. Δ0.024 ± 0.025 cm/sec/mmHg; P<0.05), but not HG (P=0.4). Although changes in QICA and MAP were unrelated (r²=0.07; P=0.16) during 30% MVC HG, LBPP & LBPP+HG, QVA was positively correlated (r²=0.14; P=0.02) with changes in MAP following Prazosin. This latter observation is consistent with changes in PCAv CVC, potentially indicative of vasodilation in the PCA or alternatively redistribution of QVA before communicating with the PCA, or both. While these findings are contrary to our hypothesis, these differential findings are interpreted to indicate that there is a disparity between the extra- and intra-cranial arteries and that SNA serves a functional role in the regulation of the posterior region of the brain during transient hypertension.
Aufklärung des Mechanismus von SnO2-Gassensoren unter Betriebsbedingungen mittels kombinierter operando-UV-Vis-, Raman- und IR-Spektroskopie
Creators: name: Elger, Ann-Kathrin
name: Hess, Christian
Publisher: name: FID GEO
Year: 2019

description: Abstract SnO2 ist das am häufigsten verwendete Material für Metalloxid-Gassensoren, aber ein detailliertes Verständnis der Funktionsweise steht trotz der Relevanz noch immer aus. Um mechanistische Einblicke in SnO2-Gassensoren unter Arbeitsbedingungen zu erhalten, haben wir einen operando-Zugang entwickelt, der UV-Vis-, Raman- und FT-IR-Spektroskopie kombiniert, und es erstmals erlaubt, die Sensorantwort mit der Sauerstoffleerstellen-Konzentration im Metalloxid, der Art der Adsorbate und der Gasphasenzusammensetzung zu verknüpfen. Wir zeigen anhand der Ethanol-Gassensorik, dass der Sensorwiderstand direkt mit der Anzahl an Sauerstoffleerstellen an der Oberfläche und der Art der Oberflächenspezies, insbesondere der Acetat- und Hydroxyspezies, korreliert ist. Unsere operando-Ergebnisse erlauben eine Beurteilung der in der Literatur vorgeschlagenen Modelle hinsichtlich der Arbeitsweise von Gassensoren. Aufgrund ihres fundamentalen Charakters sind sie auch für andere Metalloxid-Gassensoren von unmittelbarer Relevanz.
The Effect of Input from the Cerebellar Nuclei on Activity in Thalamocortical Networks
Creators: name: Goncharenko, Julia
Publisher: name: UH Research Archive
Year: 2021
Subjects: Cerebellum
Cerebellar nuclei
Thalamocortical networks
Absence epilepsy
Downbeat nystagmus
4-aminopyridine (4-AP)
Short-term depression
Biocomputation
Computational modelling
NEURON
PyNN

description: The cerebellum is a prominent brain structure that contains more than half of all neurons, in the brain, which are densely packed and make up 15% of the total brain mass (Andersen et al., 1992). It is well known for its contribution to the control of motor functions, but it also plays a pivotal role in non-motor behaviours. The cerebellum is also involved in numerous pathological conditions. This thesis contributes to the understanding of the pathophysiology of the cerebello-thalamo-cortical pathways. I concentrate on two cerebellar diseases, namely: absence epilepsy (Noebels, 2005) and downbeat nystagmus (DBN) (Strupp et al., 2007). In this thesis the missing link in explaining the alleviating mechanism of a potassium channel blocker on downbeat nystagmus was found. A simulated single biologically detailed floccular target neuron (FTN) model was stimulated by input from cerebellar Purkinje cells (PCs). It was demonstrated that for both synchronised and unsynchronised input, irregular PC spike trains (which resembles the DBN condition) resulted in elevated FTN firing rates, in comparison with regular (4-AP treated) ones. This increase or decrease of the FTN firing rates during DBN, or after 4-AP treatment, respectively depended on short term depression (STD) at the PC - FTN synapses exclusively in the cases when the PC input was unsynchronised. In contrast, results of previous modelling studies (Glasauer et al, 2011; Glasauer and Rossert, 2008) were not in-line with the corresponding experimental findings (Alvina and Khodakhah, 2010) because they did not take into account the STD on the FTN-PC synapses. It was also demonstrated here that the cerebellar output contributes to the control of absence epilepsy that originates in the thalamocortical network. Moreover, the cerebellar input was most effective when it arrived at the peak of the GSWD burst, with the least effective input arriving during the inter-ictal interval, showing clear phase-dependency. I have also shown that a three-fold increase in the inhibitory time constant, drives the asynchronous-irregular network into an ictal state. This increase reflects the GABAA block. A change to GABAB dominated inhibition results in GSWDs, in which the “wave” component is related to the slow GABAB-mediated K+ currents (Destexhe, 1998). Therefore, in this thesis two important contributions are made to the understanding of cerebellar pathological states: absence epilepsy and DBN, which might in turn be useful in the potential treatment of these conditions.
Following moist intrusions into the Arctic using SHEBA observations in a Lagrangian perspective
Creators: name: Ali, S. Mubashshir
name: Pithan, Felix
Publisher: name: FID GEO
Year: 2020

description: Warm and moist air masses are transported into the Arctic from lower latitudes throughout the year. Especially in winter, such moist intrusions (MIs) can trigger cloud formation and surface warming. While a typical cloudy state of the Arctic winter boundary layer has been linked to the advection of moist air masses, direct observations of the transformation from moist midlatitude to dry Arctic air are lacking. Here, we have used observations from the Surface Heat Budget of the Arctic Ocean (SHEBA) project to compile Eulerian observations along the trajectories of warm and cold air masses in a Lagrangian sense, showing the cooling and drying of air masses over sea ice and moistening over the open ocean. Air masses originating mostly over open water generate cloudy conditions over the observation site, whereas air masses originating over continents or sea ice generate radiatively clear conditions. We recommend using our case-studies and the method of linking expeditions to station soundings via back-trajectories for modelling work in future campaigns.