cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Nonlinear magnetic field dependence of the emission frequency and bandwidth of a far-infrared p-type Ge cyclotron laser
Creators: name: Bespalov, A. V.
name: Schilz, A.
name: Prettl, Wilhelm
name: Fischer, W. W.
name: Renk, Karl Friedrich
Publisher: name: Universität Regensburg
Year: 1993
Subjects: subject: 530 Physik
subject: 72.20.Ht, 78.50.Ge, 42.52.+x, 42.55.Px

description: Using a high-resolution Fabry-Perot interferometer, we have studied the emission of a far-infrared p-type germanium cyclotron laser in a frequency range of strong emission (82–87 cm-1). A nonlinear tuning of the emission frequency with magnetic field, a magnetic field dependent width, and a splitting of the emission line (near 85.8 cm-1) were found. We present an analysis showing that the emission behavior can be understood by recognizing that the laser level separation depends not only on the magnetic-field strength, but also on the ratio of the electric and magnetic-field strengths. We further relate the observed line splitting to radiation absorption due to transitions between Zeeman-split states of shallow acceptors.
title: Journal of Preventive Medicine and Hygiene, Vol. 66 No. 1S1 (2025): Atti 57° Congresso Nazionale SItI
title: Atti 57° Congresso Nazionale SItI
titleType: AlternativeTitle
Creators: name: Journal Of Preventive Medicine And Hygiene
Publisher: name: Journal of Preventive Medicine and Hygiene
Year: 2025

description: Supplemento 1

Atti 57° Congresso Nazionale

Società Italiana Igiene, Medicina Preventiva e Sanità Pubblica (SItI)

Palermo, 23-26 ottobre 2024
Far infrared response of thin film Bi2Sr2CaCu2O8 using a free electron laser
Creators: name: Prettl, Wilhelm
name: Lengfellner, Hans
name: Kaminski, J. P.
name: Schneider, G.
name: Huggard, P. G.
name: O'Brien, T. P.
name: Blau, W.
Publisher: name: Universität Regensburg
Year: 1992
Subjects: subject: High-Tc superconductors - FIR-detection - free-electronlaser
subject: 530 Physik

description: The far infrared response of granular thin-film Bi2Sr2CaCu2O8 superconductor has been investigated using long (ap5 mgrs) but sharply truncated free electron laser pulses in the frequency range between 50 cm–1 and 125 cm–1. Under constant current bias, a fast response and a slow bolometric signal component could be identified in this energy range, which is below the BCS energy gap (ap 200 cm–1). Measurements of the power dependences of the signal voltages showed that both the fast and the thermal responses are consistent with the predictions of the resistively shunted Josephson junction model.
Additional file 2 of A reliable and robust method for the upper thigh muscle quantification on computed tomography: toward a quantitative biomarker for sarcopenia
Creators: name: Ko, Yousun
name: Shin, Youngbin
name: Sung, Yu Sub
name: Lee, Jiwoo
name: Lee, Jei Hee
name: Kim, Jai Keun
name: Park, Jisuk
name: Ko, Hye Sun
name: Kim, Kyung Won
name: Huh, Jimi
Publisher: name: figshare
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Additional file 2 Supplementary Fig. 2. Box-whisker plots for the difference in selecting measurement level between readers 1 and 2.
RETRACTED ARTICLE: The value of FGF9 as a novel biomarker in the diagnosis of prostate cancer
Creators: name: Cui, Genggang
name: Shao, Mingming
name: Gu, Xingzhou
name: Guo, Hongbo
name: Zhang, Shiqing
name: Lu, Jianlei
name: Ma, Hongbin
Publisher: name: Taylor & Francis
Year: 2021
Subjects: Medicine
Cell Biology
Biotechnology
Cancer
Science Policy

description: We, the Editors and Publisher of the journal Artificial Cells, Nanomedicine, and Biotechnology, have retracted the following article: Genggang Cui, Mingming Shao, Xingzhou Gu, Hongbo Guo, Shiqing Zhang, Jianlei Lu & Hongbin Ma (2019) The value of FGF9 as a novel biomarker in the diagnosis of prostate cancer. Artificial Cells, Nanomedicine, and Biotechnology, 47:1, 2241–2245, DOI: 10.1080/21691401.2019.1620250 It has come to our attention that the full authorship list and affiliations for this manuscript, including the study site and ethics committee, were changed after the article was submitted. We have contacted the authors for an explanation, but we have not received a response within the requested timeframe. As determining authorship and the location of where the research was conducted is core to the integrity of published work, we are therefore retracting the article. The authors listed in this publication have been sent notification. We have been informed in our decision-making by our policy on publishing ethics and integrity and the COPE guidelines on retractions. The retracted article will remain online to maintain the scholarly record, but it will be digitally watermarked on each page as ‘Retracted’.
Operator Quantum Geometric Tensor and Quantum Phase Transitions
Creators: name: Lu, Xiao-Ming
name: Wang, Xiaoguang
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We extend the quantum geometric tensor from the state space to the operator level,and investigate its properties like the additivity for factorizable models and the splitting of two kinds contributions for the case of stationary reference states. This operator-quantum-geometric tensor (OQGT) is shown to reflect the sensitivity of unitary operations against perturbations of multi parameters. General results for the cases of time evolutions with given stationary reference states are obtained. By this approach, we get exact results for the rotated XY models, and show relations between the OQGT and quantum criticality.
description: One more reference added. 6 pages,2 figs. Accepted by EPL
Regular and chaotic current oscillations in n-type GaAs in transverse and longitudinal magnetic fields
Creators: name: Spangler, J.
name: Margull, U.
name: Prettl, Wilhelm
Publisher: name: Universität Regensburg
Year: 1992
Subjects: subject: 530 Physik
subject: 72.20.My, 05.40.+j, 72.70.+m

description: Self-sustained current oscillations due to impurity breakdown in n-type GaAs epitaxial layers are reported for various magnetic-field strengths and orientations of the field with respect to the direction of current. In all cases relaxation oscillations at the onset of breakdown and formation of a current filament in the postbreakdown regime are observed. A magnetic field normal to the epitaxial layer destabilizes the filament and causes multifrequency oscillations and chaotic fluctuations. On the other hand, if the magnetic field lies in the plane of the layer the filamentary current flow is stable up to field strengths of 2 T.
Safeguarding the catalytic activity and stability of polyaniline chitosan silver nanocomposite bound beta-galactosidase against product inhibitors and structurally related compound
Creators: name: Khan, Maryam
name: Husain, Qayyum
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Neuroscience
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Hematology

description: In this study, an attempt has been made to evaluate the effect of products of β-galactosidase (βGS) catalyzed reaction i.e. glucose and galactose and their structurally related compound vitamin C (VC) on the catalytic activity of native and PANI-CS-NC and PANI-CS-Ag-NC adsorbed βGS. Results indicated a decline in catalytic activity of soluble enzyme in the presence of all investigated compounds. The order of inhibition was found to be VC w/v), while the native enzyme exhibited only 18% of its original activity. A significant decrease in absorbance and fluorescence intensity was evaluated in soluble enzyme incubated in the presence of all investigated compounds. Three-dimensional fluorescence graphs, CD and FT-IR spectroscopic studies illustrated noteworthy conformational changes in the secondary structure and microenvironment of the soluble enzyme in the presence of VC and tested sugars. These results suggest that both PANI-CS-NC and PANI-CS-Ag-NC bound βGS are more resistant to the exposure caused by the higher concentration of added glucose, galactose, and VC and, therefore, can be effectively utilized for the production of a hassle-free lactose nano-biosensor.
Heat propagation in high Tc films investigated by optical response measurements
Creators: name: Zeuner, S.
name: Lengfellner, Hans
name: Betz, J.
name: Renk, Karl Friedrich
name: Prettl, Wilhelm
Publisher: name: Universität Regensburg
Year: 1992
Subjects: subject: THALLIUM OXIDES, BARIUM OXIDES, CALCIUM OXIDES, COPPER OXIDES, MULTI−ELEMENT COMPOUNDS, HIGH−TC SUPERCONDUCTORS, HEAT TRANSFER, THERMAL CONDUCTIVITY, DIFFUSIVITY, LASER−RADIATION HEATING, IV CHARACTERISTIC, ELECTRIC CONDUCTIVITY, THERMAL BOUNDARY RESISTANCE
subject: 530 Physik
subject: 74.25.Bt; 74.25.N-; 44.30.+v; 74.70.-b

description: The optical response of granular Tl‐Ba‐Ca‐Cu‐O films has been used to investigate thermal properties of the films. An analysis of the response using a heat transfer model yields a thermal diffusivity D=10−3 cm2/s at 150 K which rises to 6×10−3 cm2/s at a temperature of 30 K and allows for an estimation of the boundary resistance Rbd≊10−3 K cm2/W between film and substrate. The dependence of the response time on film thickness obtained from the heat transfer model is compared with published data indicating that in many experiments the observed response is mainly bolometric in origin.
Safeguarding the catalytic activity and stability of polyaniline chitosan silver nanocomposite bound beta-galactosidase against product inhibitors and structurally related compound
Creators: name: Khan, Maryam
name: Husain, Qayyum
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Neuroscience
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences

description: In this study, an attempt has been made to evaluate the effect of products of β-galactosidase (βGS) catalyzed reaction i.e. glucose and galactose and their structurally related compound vitamin C (VC) on the catalytic activity of native and PANI-CS-NC and PANI-CS-Ag-NC adsorbed βGS. Results indicated a decline in catalytic activity of soluble enzyme in the presence of all investigated compounds. The order of inhibition was found to be VC w/v), while the native enzyme exhibited only 18% of its original activity. A significant decrease in absorbance and fluorescence intensity was evaluated in soluble enzyme incubated in the presence of all investigated compounds. Three-dimensional fluorescence graphs, CD and FT-IR spectroscopic studies illustrated noteworthy conformational changes in the secondary structure and microenvironment of the soluble enzyme in the presence of VC and tested sugars. These results suggest that both PANI-CS-NC and PANI-CS-Ag-NC bound βGS are more resistant to the exposure caused by the higher concentration of added glucose, galactose, and VC and, therefore, can be effectively utilized for the production of a hassle-free lactose nano-biosensor.
Search for η-Mesic Nuclei at J-PARC
Creators: name: Fujioka, H.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The merits of searching for η-mesic nuclei by use of the (π, N) reaction at J-PARC is discussed, by comparison with an old experiment with the same reaction at BNL in 1980's. The importance of a pilot experiment using deuterium target is also stressed for a better understanding of the background which should exist even after the coincidence of the decay particles of η-mesic nuclei.
description: Invited talk at the International Symposium on Mesic Nuclei, Krakow, 16 June 2010
Identifying A Stars in the CoRoT Fields IRa01, LRa01 and LRa02
Creators: name: Sebastian, D.
name: Guenther, E. W.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Up to now, planet search programs have concentrated on main sequence stars later than spectral type F5. However, identifying planets of early type stars would be interesting. For example, the mass loss of planets orbiting early and late type stars is different because of the differences of the EUV and X-ray radiation of the host stars. As an initial step, we carried out a program to identify suitable A-stars in the CoRoT fields using spectra taken with the AAOmega spectrograph. In total we identified 562 A-stars in IRa01, LRa01, and LRa02.
description: Part of PlanetsbeyondMS/2010 proceedings http://arxiv.org/html/1011.6606
Molecular recognition of organic ammonium ions in solution using synthetic receptors.
Creators: name: Späth, Andreas
name: König, Burkhard
Publisher: name: Universität Regensburg
Year: 2010
Subjects: subject: amino acids; ammonium ion; molecular recognition; synthetic receptors
subject: 540 Chemie

description: Ammonium ions are ubiquitous in chemistry and molecular biology. Considerable efforts have been undertaken to develop synthetic receptors for their selective molecular recognition. The type of host compounds for organic ammonium ion binding span a wide range from crown ethers to calixarenes to metal complexes. Typical intermolecular interactions are hydrogen bonds, electrostatic and cation-pi interactions, hydrophobic interactions or reversible covalent bond formation. In this review we discuss the different classes of synthetic receptors for organic ammonium ion recognition and illustrate the scope and limitations of each class with selected examples from the recent literature. The molecular recognition of ammonium ions in amino acids is included and the enantioselective binding of chiral ammonium ions by synthetic receptors is also covered. In our conclusion we compare the strengths and weaknesses of the different types of ammonium ion receptors which may help to select the best approach for specific applications.
Nonlinear far‐infrared photoacoustic magnetospectroscopy of n‐GaAs at low temperatures
Creators: name: Schilz, A.
name: Huber, L.
name: Prettl, Wilhelm
name: Kaminski, J.
Publisher: name: Universität Regensburg
Year: 1992
Subjects: subject: GALLIUM ARSENIDES, P−TYPE CONDUCTORS, SATURATION SPECTROSCOPY, MAGNETO−OPTICAL EFFECTS, ABSORPTION SPECTROSCOPY, PHOTOACOUSTIC SPECTROSCOPY, IMPURITY STATES, DONORS, RECOMBINATION, ENERGY−LEVEL TRANSITIONS, TEMPERATURE RANGE
subject: 530 Physik
subject: 78.20.Ls; 71.55.Eq; 72.20.Jv; 43.38.+n

description: The far‐infrared magnetoabsorption of shallow donors in n‐GaAs has been investigated as a function of irradiation intensity applying a low‐temperature photoacoustic cell. Optical cross sections and saturation intensities of various optical transitions were quantitatively determined yielding recombination times of excited electrons.
Entropy of stationary nonequilibrium measures of boundary driven symmetric simple exclusion processes
Creators: name: Bernardin, Cedric
name: Landim, C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We examine the entropy of stationary nonequilibrium measures of boundary driven symmetric simple exclusion processes. In contrast with the Gibbs--Shannon entropy \cite{B, DLS2}, the entropy of nonequilibrium stationary states differs from the entropy of local equilibrium states.
Additional file 1 of Genetic diversity in L1 ORF of human papillomavirus in women with cervical cancer with and without human immunodeficiency virus in Botswana and Kenya
Creators: name: Tawe, Leabaneng
name: Choga, Wonderful T.
name: Paganotti, Giacomo M.
name: Bareng, Ontlametse T.
name: Ntereke, Tlhalefo D.
name: Ramatlho, Pleasure
name: Ditshwanelo, Doreen
name: Gaseitsiwe, Simani
name: Kasvosve, Ishmael
name: Ramogola-Masire, Doreen
name: Orang’o, Omenge E.
name: Robertson, Erle
name: Zetola, Nicola
name: Moyo, Sikhulile
name: Grover, Surbhi
name: Ermel, Aaron C.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Evolutionary Biology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Additional file 1: Table S1. Amino acid sequence variation in sequences of L1 gene of HPV genotypes amongst cancers from Kenya and Botswana.
Additional file 1 of MedFusionGAN: multimodal medical image fusion using an unsupervised deep generative adversarial network
Creators: name: Safari, Mojtaba
name: Fatemi, Ali
name: Archambault, Louis
Publisher: name: figshare
Year: 2023
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 1.
Cobalt tris(2,2'-bipyrimidine) redox mediators generate high dye-sensitized solar cell photovoltages
Creators: name: Chen, Yingqian Kitty
Publisher: name: University of British Columbia
Year: 2019

description: Dye-sensitized solar cells (DSSCs) are promising, cost-effective technologies used to harness solar energy for electricity. Previous efforts to improve the solar-to-electricity conversion efficiency have primarily focused on sensitizer engineering and photocurrent generation. Alternatively, the efficiency can be increased by tuning the redox potential of the charge mediator to maximize the photovoltage in the device. This work describes the implementation of a new cobalt mediator (Co-bpm) with an exceptionally positively shifted redox potential of 1.07 V vs NHE in the DSSC. The best-performing device showed one of the highest reported DSSC photovoltages. The poor solubility of Co-bpm in MeCN was a major obstacle that was overcome by testing a variety of electrolyte solvent systems and counterions. Notwithstanding, Co-bpm mediator-based devices exhibited low photocurrents and low power conversion efficiencies despite the high voltages. A comparative study was then performed to elucidate how the positively shifted redox potential affect the photocurrent in Co-bpm mediator-based devices. Three cobalt analogs [Co-(bpm-DTB), Co-bpy and Co-(bpy-DTB)] of varying redox potentials were studied alongside Co-bpm to determine the trend between redox potential, device performance, and recombination lifetime. The redox potentials of the cobalt analogs were tuned by installing tert-butyl substituents and varying the number of nitrogen atoms in the ligand. A positive shift in the redox potentials correlated to a linear increase in photovoltage and non-linear decrease in photocurrent in DSSCs. A low quasi-Fermi level (EF,n) at open-circuit conditions and a short electron lifetime (Tn) in device containing Co-bpm indicate that a significant loss of electrons from TiO₂ via recombination pathways is one key factor that contribute to the poor photocurrent and overall device performance.
Additional file 1 of Ischemic cholangitis during Osler-Weber-Rendu disease: a case report
Creators: name: Kharmach, Oussama
name: Borahma, Mohamed
name: Lagdali, Nawal
name: Benelbarhdadi, Imane
name: Ajana, Fatima-Zohra
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer

description: Additional File 1.
Additional file 1 of Higher baseline resting metabolic rate is associated with 1-year frailty decline among older adults residing in an urban area
Creators: name: Gonzalez, A
name: Soto, J
name: Babiker, N
name: Wroblewski, K
name: Sawicki, S
name: Schoeller, D
name: Luke, A
name: Huisingh-Scheetz, Megan
Publisher: name: figshare
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: Mental Health

description: Supplementary Material 1
Spectral dependence of nonbolometric far‐infrared detection with thin‐film Bi2Sr2CaCu2O8
Creators: name: Schneider, G.
name: Huggard, P. G.
name: O'Brien, T. P.
name: Lemoine, P.
name: Blau, W.
name: Prettl, Wilhelm
Publisher: name: Universität Regensburg
Year: 1992
Subjects: subject: BISMUTH OXIDES, STRONTIUM OXIDES, CALCIUM OXIDES, CUPRATES, MULTI−ELEMENT COMPOUNDS, HIGH−TC SUPERCONDUCTORS, PHOTODETECTORS, SPECTRAL RESPONSE, GRANULAR MATERIALS, JOSEPHSON EFFECT, WEAK LINKS, INFRARED RADIATION
subject: 530 Physik
subject: 07.57.Kp; 74.50.+r; 74.25.N-; 74.78.-w

description: The photoresponse of granular current biased thin‐film Bi2Sr2CaCu2O8 superconductor to short pulse far infrared radiation has been measured for 16 laser lines, with frequencies between 10 and 1000 cm−1. A strong dependence of the signal on the frequency ω, approximately proportional to ω−2.3, is observed. It is shown, by calculations based on the resistively shunted junction model, that this photosignal can be understood to arise from the ac Josephson effect at grain boundary weak links.
Additional file 1 of An advanced method for the release, enrichment and purification of high-quality Arabidopsis thaliana rosette leaf trichomes enables profound insights into the trichome proteome
Creators: name: Huebbers, Jan W.
name: Büttgen, Kim
name: Leissing, Franz
name: Mantz, Melissa
name: Pauly, Markus
name: Huesgen, Pitter F.
name: Panstruga, Ralph
Publisher: name: figshare
Year: 2022
Subjects: subject: Plant Biology
subject: FOS: Biological sciences

description: Additional file 1: Figure S1. Comparison of EGTA and EDTA as chelating agents for trichome release. Figure S2. Trichome types in RAW samples of S. lycopersicum and N. benthamiana. Figure S3. Microscopic evaluation of histochemical staining of A. thaliana wild-type trichomes with Toluidine Blue O or by Mäule reaction. Figure S4. Comparison of the densities of sucrose and Nycodenz for DGC. Figure S5. Verification of amplicon sequence integrity after qRT-PCR. Figure S6. GO terms associated with proteins enriched in trichomes. Figure S7. GO terms associated with proteins depleted in trichomes. Table S1. Trichome yield per harvested plant fresh mass. Table S2. GO terms and key words used as filter criteria to identify proteins of similar function among trichome and/or leaf samples. Table S3. A. thaliana neutral monosaccharide and cellulose amounts measured in various studies. Table S4. Stains, incubation times and illumination procedures used to probe cell wall components and lipids of trichomes. Table S5. Primers used in this study.
Effect of thiourea on the dissolution of chalcopyrite in acidic ferric solutions at different temperatures
Creators: name: Valenzuela Guerrero, Patricia Jazmin
Publisher: name: University of British Columbia
Year: 2020

description: The effect of thiourea on the electrochemical dissolution of a chalcopyrite electrode and in leaching of a chalcopyrite concentrate in acidic-ferric sulfate solution at mild temperatures (50°C, 65°C, and 80°C) was investigated in the present study. The investigation was conducted in two phases: the first was the electrochemical experimentation to test a broad set of experimental conditions; and the second was the batch leaching of the chalcopyrite concentrate, once the working conditions were narrowed after the electrochemical experiments. The effect of thiourea on the dissolution current density was found to be dependent on the temperature and acid concentration, resulting in higher values at 80°C and 0.3 M H₂SO₄ than at 50°C and 65°C. As for the leaching of the chalcopyrite concentrate at 80°C, the copper extraction is increased by 15% utilizing a 30 mM concentration of thiourea, and 20% at 100 mM concentration, both compared to 0 mM thiourea in solution.
Long-term impacts of wildfire smoke on human health
Creators: name: Gao, Yuan
Publisher: name: Monash University
Year: 2025
Subjects: classificationCode: 420203
subject: Environmental epidemiology

description: Through a systematic review and several original studies, this thesis provides a scientific framework for understanding the long-term health risks associated with wildfire smoke PM2.5 exposure. These findings offer valuable guidance for public health by highlighting the need for preventive measures and targeted interventions to mitigate wildfire smoke exposure, especially in vulnerable regions and populations.
Shock Wave Response of Porous Materials: From Plasticity to Elasticity
Creators: name: Xu, Aiguo
name: Zhang, Guangcai
name: Ying, Yangjun
name: Zhang, Ping
name: Zhu, Jianshi
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Shock wave reaction results in various characteristic regimes in porous material. The geometrical and topological properties of these regimes are highly concerned in practical applications. Via the morphological analysis to characteristic regimes with high temperature, we investigate the thermodynamics of shocked porous materials whose mechanical properties cover a wide range from hyperplasticity to elasticity. It is found that, under fixed shock strength, the total fractional area $A$ of the high-temperature regimes with $T \geq T_{th}$ and its saturation value first increase, then decrease with the increasing of the initial yield $σ_{Y0}$, where $T_{th}$ is a given threshold value of temperature $T$. In the shock-loading procedure, the fractional area $A(t)$ may show the same behavior if $T_{th}$ and $σ_{Y0}$ are chosen appropriately. Under the same $A(t)$ behavior, $T_{th}$ first increases then decreases with $σ_{Y0}$. At the maximum point $σ_{Y0M}$, the shock wave contributes the maximum plastic work. Around $σ_{Y0M}$, two materials with different mechanical properties may share the same $A(t)$ behavior even for the same $T_{th}$. The characteristic regimes in the material with the larger $σ_{Y0}$ are more dispersed.
description: 6 figures, Fig.1 in JPG format
Additional file 1 of Association between prior-night sleep and next-day fatigue in older adults: a daily diary study
Creators: name: Nakagawa, Takeshi
name: Yasumoto, Saori
name: Kabayama, Mai
name: Matsuda, Ken’ichi
name: Gondo, Yasuyuki
name: Kamide, Kei
name: Ikebe, Kazunori
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Mental Health

description: Supplementary Material 1
Fast photoresponse from infrared-laser-induced flux motion in YBa2Cu3Ox films
Creators: name: Puig, T.
name: Huggard, P. G.
name: Schneider, G.
name: O'Brien, T. P.
name: Blau, W.
name: Pont, M.
name: Muñoz, J. S.
name: Prettl, Wilhelm
Publisher: name: Universität Regensburg
Year: 1992
Subjects: subject: 530 Physik
subject: 74.60.Ge, 74.30.Gn, 74.75.+t

description: A fast photosignal has been obtained from epitaxial superconducting YBa2Cu3Ox thin films when a small alternating magnetic field was applied in the film plane. No bias current was required to observe this response. Pulsed infrared radiation at a wavelength of 10.6 μm and of 150-ns duration yielded nonlinear signals: the voltage pulses had approximately half the duration of the laser output. Signal polarity was found to depend on the sign of dH/dt. For an applied magnetic field amplitude of 1600 A/m and a frequency of 20 Hz, a maximum signal amplitude of 0.5 mV was observed at 74 K for an absorbed energy of 1 μJ. The response originates from the motion of radiation depinned fluxoids across the plane of the film. These fluxoids are subject to a driving force arising from the flux-line density gradient established in the sample by the alternating magnetic field. The resulting net flux movement generates the photosignal by Faraday’s law.
Measurements on the 3He+ηSystem at ANKE
Creators: name: Khoukaz, A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The differential and total cross-sections for the dp \to 3He ηreaction have been measured in a high precision high statistics COSY-ANKE experiment near threshold using a continuous beam energy ramp up to an excess energy Q of 11.3 MeV with essentially 100% acceptance. The kinematics allowed the mean value of Q to be determined to about 9 keV. Evidence is found for the effects of higher partial waves for Q > 4 MeV. The very rapid rise of the total cross-section to its maximum value within 0.5 MeV of threshold implies a very large η3He scattering length and hence the presence of a quasi-bound state extremely close to threshold. In addition, differential and total cross-sections have been measured at excess energies of 19.5, 39.4, and 59.4 MeV over the full angular range. While at 19.5 MeV the results can be described in terms of s- and p-wave production, by 59.4 MeV higher partial waves are required. Including the 19.5 MeV point together with the near-threshold data in a global s- and p-wave fit gives a poorer overall description of the data though the position of the pole in the η3He scattering amplitude, corresponding to the quasi-bound or virtual state, is hardly changed.
description: Invited talk at the International Symposium on Mesic Nuclei, Krakow, 16 June 2010
Magnetoresistance of n-GaAs at filamentary current flow
Creators: name: Proshin, S. A.
name: Golubev, V. G.
name: Würfl, S.
name: Spangler, J.
name: Schilz, A.
name: Prettl, Wilhelm
Publisher: name: Universität Regensburg
Year: 1993
Subjects: subject: Semiconductors; Surfaces, interfaces and thin films; Condensed matter: structural, mechanical & thermal
subject: 530 Physik
subject: 73.50.Jt; 68.55.Ln; 61.72.uj; 73.61.Ey

description: A large number of sharp structures are observed in the 4.2 K magnetoresistance of n-GaAs biased above impurity breakdown in a regime where current flow is filamentary. Most of the structures cannot be attributed to spectral properties of the semiconductor such as impact excitation of shallow donors or the magnetoimpurity effect. Experimental results give evidence that these structures are caused by a redistribution of the filamentary current flow when one filament border is swept across an imperfection in the material.
Additional file 1 of Association of abnormal electrocardiograph metrics with prolonged recovery time in incident hemodialysis patients
Creators: name: Watt, Jacqueline
name: Fitzpatrick, Jessica
name: Sozio, Stephen M.
name: Jaar, Bernard G.
name: Estrella, Michelle M.
name: Tereshchenko, Larisa G.
name: Monroy-Trujillo, Jose M.
name: Walsh, Michael
name: Parekh, Rulan S.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1: Supplementary Table 1: Association of post-dialysis recovery time (RT) with ECG measurements QT interval, QTc interval, and heart rate variability, by sex (male vs. female).
Thermopile effect due to laser radiation heating in thin films of high-Tc materials
Creators: name: Renk, Karl Friedrich
name: Betz, J.
name: Zeuner, S.
name: Lengfellner, Hans
name: Prettl, Wilhelm
Publisher: name: Universität Regensburg
Year: 1994
Subjects: subject: 530 Physik

description: We report on the observation of a thermopile effect caused by laser radiation heating in thin films of high-Tc material. The thermopile effect is due to a transverse Seebeck effect. The transverse Seebeck effect is observable first because of the anisotropy of YBa2Cu3O7−δ, and secondly because it is possible to grow off-axis epitaxial films. The thermopile effect can be used for developing detectors for laser radiation.
QOS based user driven scheduler for grid environment
Creators: name: Patel, Sanjay
name: Bhavsar, Madhuri
Publisher: name: arXiv
Year: 2011
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: As grids are in essence heterogeneous, dynamic, shared and distributed environments, managing these kinds of platforms efficiently is extremely complex. A promising scalable approach to deal with these intricacies is the design of self-managing of autonomic applications. Autonomic applications adapt their execution accordingly by considering knowledge about their own behaviour and environmental conditions.QoS based User Driven scheduling for grid that provides the self-optimizing ability in autonomic applications. Computational grids to provide a user to solve large scale problem by spreading a single large computation across multiple machines of physical location. QoS based User Driven scheduler for grid also provides reliability of the grid systems and increase the performance of the grid to reducing the execution time of job by applying scheduling policies defined by the user. The main aim of this paper is to distribute the computational load among the available grid nodes and to developed a QoS based scheduling algorithm for grid and making grid more reliable.Grid computing system is different from conventional distributed computing systems by its focus on large scale resource sharing, where processors and communication have significant inuence on Grid computing reliability. Reliability capabilities initiated by end users from within applications they submit to the grid for execution. Reliability of infrastructure and management services that perform essential functions necessary for grid systems to operate, such as resource allocation and scheduling.
description: 9 pages, ACIJ
Fast flux motion in YBa2Cu3Ox films in an ac magnetic field activated by laser heating
Creators: name: Puig, T.
name: Huggard, P. G.
name: Pont, M.
name: Schneider, G.
name: Muñoz, J. S.
name: Prettl, Wilhelm
Publisher: name: Universität Regensburg
Year: 1994
Subjects: subject: 530 Physik
subject: 74.60.Ge, 74.25.Nf, 74.76.Bz

description: Infrared pulsed laser irradiation has been used to generate a fast photosignal from epitaxial YBa2Cu3Ox superconducting films when a small alternating magnetic field is applied in the film plane. No bias current was applied, and no signals were observable in static magnetic fields. The photosignals, 40 ns in duration and tenths of a millivolt in amplitude, are obtained below Tc, with alternating magnetic fields up to 3200 A/m oscillating from 20 to 150 Hz. The laser pulses had a duration of 80 ns, with an absorbed fluence of 1 mJ/cm2 at a wavelength of 10.6 μm. The signal is interpreted in terms of flux motion thermally activated by the laser heating. The magnetic force due to the alternating magnetic field exceeds the pinning force following the absorption of the radiation and generates the fast flux motion observed. The signal dependencies on temperature, magnetic-field amplitude, and absorbed fluence, as well as ac-susceptibility measurements, confirm this explanation. It is shown that this thermally activated motion, generated at j∼jc, is faster than an Anderson-Kim creep. We propose that a thermally activated flux-avalanche model based on the self-organized-criticality theory may describe the photosignal observed.
Additional file 2 of Association of abnormal electrocardiograph metrics with prolonged recovery time in incident hemodialysis patients
Creators: name: Watt, Jacqueline
name: Fitzpatrick, Jessica
name: Sozio, Stephen M.
name: Jaar, Bernard G.
name: Estrella, Michelle M.
name: Tereshchenko, Larisa G.
name: Monroy-Trujillo, Jose M.
name: Walsh, Michael
name: Parekh, Rulan S.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2: Supplementary Table 2: Association of post-dialysis recovery time (RT) with ECG measurements QT interval, QTc interval, and heart rate variability, by age (≤55 years old vs. > 55 years old).
Compositional changes of the grape berry (Vitis vinifera L.) cuticle during fruit development in response to water deficit stress
Creators: name: Dimopoulos, Nicolas
Publisher: name: University of British Columbia
Year: 2018

description: The cuticle is a layer found on the surface of plant aerial parts mostly composed of cutin polymer and aliphatic waxes, and provides protection from biotic and abiotic environmental stresses. In fruits, cuticular waxes are also rich in triterpenoids. The cuticular waxes of the grapevine (Vitis vinifera L.) berry and the related biosynthetic pathways are poorly characterized. It is not understood how the berry cuticle responds to water deficit (WD) stress, a stress that commonly occurs in vineyards. We hypothesized that under severe WD stress, the cuticular aliphatic wax biosynthetic pathway of developing grape berries would be upregulated, resulting in an increased wax load in the fruit’s cuticle and a decrease in the transpiration rate through the berry cuticle. Candidate genes for the cuticular wax biosynthetic pathway were identified by phylogenetic analyses and surveys of publicly available grapevine transcriptomic datasets. Analyses of these transcriptomes also showed that a number of wax-related genes are significantly upregulated in response to WD stress, and are also modulated by other environmental stresses. A greenhouse experiment was performed in order to test the impact of water deficit on wax composition, expression of candidate biosynthetic genes, and water transpiration in Merlot grapes. A significant increase in aliphatic wax and a decrease in the ratio of triterpenoids:aliphatic wax was observed under WD stress. The increase in aliphatic wax was due to an upregulation of the aliphatic wax biosynthetic pathway, with an increase in expression seen in fatty acid elongation, the alkane forming, and the alcohol forming genes. The transpiration rate of the berry was not significantly affected by WD; however, a marginally significant (P = 0.051) reduction of the rate was observed in WD berries. The study also revealed that cuticular aliphatic wax composition changed over the course of berry development, with very long chain (VLC)-aldehydes and VLC- primary alcohols predominating before veraison (the onset of berry ripening), and VLC-fatty acids and wax esters mainly accumulating after veraison.
Net Neutrality and Quality of Service
Creators: name: Altman, Eitan
name: Rojas, Julio
name: Wong, Sulan
name: Hanawal, Manjesh Kumar
name: Xu, Yuedong
Publisher: name: arXiv
Year: 2011
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: 2010 has witnessed many public consultations around the world concerning Net neutrality. A second legislative phase that may follow, could involve various structural changes in the Internet. The status that the Internet access has in Europe as a universal service evolves as the level of quality of service (QoS) to be offered improves. If guarantees on QoS are to be imposed, as requested by several economic actors, it would require introducing new indicators of quality of services, as well as regulation legislation and monitoring of the offered levels of QoS. This tendency in Europe may change the nature of the Internet from a best effort network to, perhaps, a more expensive one, that offers guaranteed performance. This paper presents an overview of the above issues as well as an overview of recent research on net-neutrality, with an emphasis on game theoretical approaches.
description: 16 pages, 0 figure, 1 table
Position controlled self-catalyzed growth of GaAs nanowires by molecular beam epitaxy
Creators: name: Bauer, Benedikt
name: Rudolph, Andreas
name: Soda, Marcello
name: Fontcuberta i Morral, Anna
name: Zweck, Josef
name: Schuh, Dieter
name: Reiger, Elisabeth
Publisher: name: Universität Regensburg
Year: 2010
Subjects: subject: 530 Physik
subject: 81.16.Hc
subject: 81.15.Hi
subject: 68.65.La

description: GaAs nanowires are grown by molecular beam epitaxy using a self-catalyzed, Ga-assisted growth technique. Position control is achieved by nano-patterning a SiO2 layer with arrays of holes with a hole diameter of 85 nm and a hole pitch varying between 200 nm and 2 µm. Gallium droplets form preferentially at the etched holes acting as catalyst for the nanowire growth. The nanowires have hexagonal cross-sections with {110} side facets and crystallize predominantly in zincblende. The interdistance dependence of the nanowire growth rate indicates a change of the III/V ratio towards As-rich conditions for large hole distances inhibiting NW growth.
Additional file 4 of Association of abnormal electrocardiograph metrics with prolonged recovery time in incident hemodialysis patients
Creators: name: Watt, Jacqueline
name: Fitzpatrick, Jessica
name: Sozio, Stephen M.
name: Jaar, Bernard G.
name: Estrella, Michelle M.
name: Tereshchenko, Larisa G.
name: Monroy-Trujillo, Jose M.
name: Walsh, Michael
name: Parekh, Rulan S.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 4: Supplementary Table 4: Association of ECG measurements with post-dialysis recovery time (RT) recorded within six months (±180 days).
Additional file 3 of Association of abnormal electrocardiograph metrics with prolonged recovery time in incident hemodialysis patients
Creators: name: Watt, Jacqueline
name: Fitzpatrick, Jessica
name: Sozio, Stephen M.
name: Jaar, Bernard G.
name: Estrella, Michelle M.
name: Tereshchenko, Larisa G.
name: Monroy-Trujillo, Jose M.
name: Walsh, Michael
name: Parekh, Rulan S.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 3: Supplementary Table 3: Association of ECG measurements with post-dialysis recovery time dichotomized at the median (median = 20).
Wavelength-dependent power-law Josephson photoresponse of a Tl2Ba2CaCu2O8 thin film
Creators: name: Huggard, P. G.
name: Schneider, G.
name: Richter, C.
name: Rickler, R.
name: Prettl, Wilhelm
Publisher: name: Universität Regensburg
Year: 1994
Subjects: subject: 530 Physik
subject: 07.62.+s, 74.80.Bj, 74.76.-w

description: The Josephson photoresponse of a current biased granular Tl2Ba2CaCu2O8 thin film has been measured at 4.2 K for radiation frequencies ω in the range 20–111 cm-1. The resulting photosignal s depends nonlinearly on the incident power P satisfying the relationship s=K(ω)Pα(ω), where K is a frequency-dependent constant. The value of α increases monotonically from 0.5 at 20.2 cm-1 to 0.9 at 111 cm-1. At 20.2 cm-1 this power law is valid for incident powers between 5 mW and 1 kW, a range of more than 105. These limits are imposed by experimental constraints and not by deviations from the power-law behavior. As the frequency increases, the responsivity of the film drops strongly, K(ω) decreasing approximately as ω-3, so that the power-law validity is established over three orders of magnitude at 111 cm-1. Such a behavior of the Josephson photoresponse has been previously observed, albeit over reduced dynamic ranges, in granular superconducting films of other materials. Thus we believe it to be an inherent characteristic of the random arrays of Josephson junctions contained in such films.
Cosmological Gravitation as an Inverse Reaction to Expansion
Creators: name: Lyra, Maciej Jozef
Publisher: name: Zenodo
Year: 2025

description: We propose a new theory of gravitation in which gravity is not merely a local interaction between masses but an inverse reaction to the expansion of the universe.The theory introduces a scale-dependent correction term that enhances gravitational strength in low-density environments such as galaxy halos and voids.The model explains flat galactic rotation curves, gravitational lensing in voids, early formation of SMBHs, and the Hubble tension — without requiring dark matter.It remains consistent with Solar System observations and is fully testable.This document contains the full theoretical formulation, test results, and comparisons to standard cosmology.
Tests of Fluid-to-Fluid Scaling Laws for Supercritical Heat Transfer
Creators: name: Mouslim, Abderrazzak
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2019
Subjects: supercritical pressure
heat transfer scaling
Refrigerant 134a
carbon dioxide
pipe flow
SCWR
fluid-to-fluid scaling

description: A comparison of available fluid-to-fluid scaling laws for scaling convective heat transfer at supercritical pressures showed that the ones suggested by Zahlan, Groeneveld and Tavoularis (ZGT) have some advantages. The applicability of the ZGT laws was tested for pairs of fluids including carbon dioxide, water or Refrigerant R134a. The conditions of previous measurements taken in the Supercritical University of Ottawa Loop with CO2 flowing vertically upwards in an electrically heated tube with 8 mm ID were scaled to equivalent conditions in R134a and new measurements of the heat transfer coefficient (HTC) were taken in the same tube using the latter fluid. The inlet pressure was 1.13 times the critical pressure (4.06 MPa), the mass flux was in the range from 212 kg/m^2 s to 1609 kg/m^2 s, the heat flux was in the range from 2 kW/m^2 to 137 kW/m^2, and the inlet temperature was in the range from 62 ℃ to 105 ℃. The HTC at equivalent conditions in water was also determined with the use of transcritical look-up tables. Average and linearly varying corrections to the ZGT scaling laws were derived by statistical analysis for each pair of fluids under NHT or DHT conditions. Such corrections reduced the standard deviation of the scaling error but did not eliminate the presence of large errors under many sets of conditions. As expected, scaling errors were in general larger for DHT than NHT conditions. The present results did not reveal any systematic and correctable dependence of the scaling error upon the mass flux or heat flux but showed that scaling errors became particularly large as the bulk temperature T_b approached the pseudocritical temperature T_pc. In conclusion, the ZGT scaling laws appear to be fairly accurate for the three pairs of fluids considered in the liquid-like region with T_b/T_pc ≤ 0.94 and possibly in the gas-like region with T_b/T_pc ≥ 1.02, whereas outside this range scaling errors could be significant. It was also found that the ZGT scaling laws do not scale accurately the onset of DHT in different fluids.