cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Tracking tree canopy cover changes in space and time in High Nature Value Farmland to prioritize reforestation efforts
Creators: name: Soares, Cristina
name: Príncipe, Adriana
name: Köbel, Melanie
name: Nunes, Alice
name: Branquinho, Cristina
name: Pinho, Pedro
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: In High Nature Value Farmland areas such as the woodlands locally known as ‘montado’, increasing tree cover is a nature-based solution to mitigate land degradation which leads to loss of productivity and increase susceptibility to climate change. In the Mediterranean dryland areas, native tree species such as Holm-oak provide important ecosystem services. Tree cover provides shadow and food for animals, contributes to soil organic matter and protects soil from erosion, increasing water infiltration and biodiversity, thus increasing woodlands’ resilience. However, Holm-oak trees are facing high mortality rates and low natural regeneration due to both environmental and anthropogenic factors, which call for reforestation actions. Yet, because of its high costs, reforestation must focus on the most degraded areas. Tracking tree canopy cover over space and time using remote-sensing techniques could allow land managers to understand which factors promote or hinder mortality, growth and regeneration at large spatial scales, and help to prioritize areas for restoration. Most studies evaluating tree cover use a space-for-time substitution, are rarely done over time, and address small areas, thus disregarding climate effects; those performing large-scale analysis (i.e. over space) of satellite images seldom provide ground-validated information. To overcome these limitations, this study uses satellite imagery to quantify spatial and temporal changes in tree cover. This was done relating normalized difference vegetation index (NDVI) to aerial photography photointerpretation, over a precipitation gradient in a Mediterranean dryland area. Dry-season NDVI was positively related with tree canopy cover changes, both over space and time. The spatial–temporal models developed here were then validated with independent data and applied over a large area to create regional maps of changes in Holm-oak canopy cover over space and time. Thus, NDVI based-data can be used in large-scale assessments of Holm-oak canopy cover. Our findings provide an important tool to improve forest management strategies, e.g. by enabling to map and quantify tree cover decline, and to prioritize areas for reforestation, thus improving ecosystem services delivery in Holm-oak woodlands, such as improving farmland productivity and resilience to climate change.
Cosmological redshift-space distortion on clustering of high-redshift objects: correction for nonlinear effects in power spectrum and tests with N-body simulations
Creators: name: Magira, Hiromitsu
name: Jing, Y. P.
name: Suto, Yasushi
Publisher: name: arXiv
Year: 1999
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We examine the cosmological redshift-space distortion effect on the power spectrum of the objects at high-redshifts, which is an unavoidable observational contamination in general relativistic cosmology. In particular, we consider the nonlinear effects of density and velocity evolution using high-resolution N-body simulations in cold dark matter models. We find that the theoretical modeling on the basis of the fitting formulae of nonlinear density and velocity fields accurately describes the numerical results, especially in quasi-nonlinear regimes. These corrections for nonlinear effects are essential in order to use the the cosmological redshift-space distortion as a cosmological test. We perform a feasibility test to derive constraints from the future catalogues of high-redshift quasars using our theoretical modeling and results of N-body simulations. Applying the present methodology to the future data from on-going surveys of high-redshift galaxies and quasars will provide a useful tool to constrain a geometry of the universe.
description: 28 pages with 26 figures, ApJ 528(2000) January 1st issue, in press
Nuclear magnetic resonance affects the circadian clock and hypoxia-inducible factor isoforms in zebrafish
Creators: name: Oliva, Regina
name: Jansen, Bianca
name: Benscheidt, Felix
name: Sandbichler, Adolf Michael
name: Egg, Margit
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified

description: Nuclear magnetic resonance (NMR) is used for magnetic resonance imaging and, at a lower intensity, as therapy for the treatment of musculoskeletal disorders. Due to the involvement of the circadian clock protein CRYPTOCHROME in the magnetic orientation of animals, it was repeatedly assumed that magnetic fields might affect the circadian rhythm of cells and organisms. Since circadian time keeping and hypoxic signaling are mutually intertwined, we investigated the effects of NMR on both cellular pathways in zebrafish fibroblast cells and larvae. In cells, basal mRNA expression of cryptochrome1aa was increased and oscillations of cryptochrome1aa and period1b were shifted in phase, while those of clock1a and period2 remained unaffected. Similarly, circadian oscillations of cryptochrome1aa and period1b were restored in zebrafish larvae, while those of clock1a and period2 remained unaltered. NMR also restored the circadian expression of the hypoxia-inducible factor (Hif) isoforms Hif-1α and Hif-3α at the mRNA and protein level, but had no effect on the expression of Hif-2α. Thus, NMR-mediated effects might differ substantially from the light-induced reset of the circadian clock in the same species and therefore represent an additional operation mode of the cellular clock, enabling distinct processing of photic and magnetic information.
Leptonic CP Violation in Supersymmetric Standard Model
Creators: name: Joshipura, A. S.
name: Nowakowski, M.
Publisher: name: arXiv
Year: 1994
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We point out the possibility of spontaneous and hard CP-violation in the scalar potential of R-parity broken supersymmetric Standard Model. The existence of spontaneous CP-violation depends crucially on the R-parity breaking terms in the superpotential and, in addition, on the choice of the soft supersymmetry breaking terms. Unlike in theories with R-parity conservation, it is natural, in the context of the present model, for the sneutrinos to acquire (complex) vacuum expectation values. In the context of this model we examine here the global implications, like the strength of the CP-violating interactions and the neutrino masses.
description: REVTEX, 15 pages
Rank Revealing Gaussian Elimination by the Maximum Volume Concept
Creators: name: Schork, Lukas
name: Gondzio, Jacek
Publisher: name: arXiv
Year: 2018
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: A Gaussian elimination algorithm is presented that reveals the numerical rank of a matrix by yielding small entries in the Schur complement. The algorithm uses the maximum volume concept to find a square nonsingular submatrix of maximum dimension. The bounds on the revealed singular values are similar to the best known bounds for rank revealing LU factorization, but in contrast to existing methods the algorithm does not make use of the normal matrix. An implementation for dense matrices is described whose computational cost is roughly twice the cost of an LU factorization with complete pivoting. Because of its flexibility in choosing pivot elements, the algorithm is amenable to implementation with blocked memory access and for sparse matrices.
The Ages of Pre-main-sequence Stars
Creators: name: Tout, Christopher A.
name: Livio, Mario
name: Bonnell, Ian A.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The position of pre-main-sequence or protostars in the Hertzsprung--Russell diagram is often used to determine their mass and age by comparison with pre-main-sequence evolution tracks. On the assumption that the stellar models are accurate, we demonstrate that, if the metallicity is known, the mass obtained is a good estimate. However, the age determination can be very misleading because it is significantly (generally different by a factor of two to five) dependent on the accretion rate and, for ages less than about one million years, the initial state of the star. We present a number of accreting protostellar tracks that can be used to determine age if the initial conditions can be determined and the underlying accretion rate has been constant in the past. Because of the balance established between the Kelvin-Helmholtz, contraction timescale and the accretion timescale a pre-main-sequence star remembers its accretion history. Knowledge of the current accretion rate, together with an H--R-diagram position gives information about the rate of accretion in the past but does not necessarily improve any age estimate. We do not claim that ages obtained by comparison with these particular accreting tracks are likely to be any more reliable than those from comparisons with non-accreting tracks. Instead we stress the unreliability of any such comparisons and use the disparities between various tracks to estimate the likely errors in age and mass estimates. We also show how a set of coeval accreting objects do not appear coeval when compared with non-accreting tracks. Instead accreting pre-main-sequence stars of around a solar mass are likely to appear older than those of either smaller or larger mass.
description: Accepted by MNRAS
Climate and geographic distance are more influential than rivers on the beta diversity of passerines birds in Amazonia
Creators: name: Isadora E. Fluck
Publisher: name: figshare
Year: 2018
Subjects: subject: 60202 Community Ecology (excl. Invasive Species Ecology)
subject: FOS: Biological sciences

description: The dataset has all the shapefiles and other necessary files to replicate all analyses in the manuscript (currently submitted for publication)
Material complementario de 'Nuevas formas de trabajar con la información científica: introducción al uso de las APIs en contextos bibliométricos'
Creators: name: Torres-Salinas, Daniel
name: Arroyo-Machado, Wenceslao
Publisher: name: Zenodo
Year: 2022
Subjects: API
cienciometría
bibliometría
fuentes de información

description: Los presentes materiales forman parte del artículo ThinkEpi titulado: “Nuevas formas de trabajar con la información científica: introducción al uso de las APIs en contextos bibliométricos”. La información incluida en las tablas ha sido obtenida de la siguiente wiki de GitHub: https://github.com/Wences91/Fuentes_de_informacion/wiki/APIs cuyos contenidos se seguirán actualizando periódicamente.
Additional file 1: of Sugar-sweetened beverage intake and serum testosterone levels in adult males 20â 39Â years old in the United States
Creators: name: Chen, Liang
name: Xie, Yu-Mei
name: Pei, Jian-Hao
name: Kuang, Jian
name: Chen, Hong-Mei
name: Chen, Zhong
name: Li, Zhong-Wen
name: Fu, Xiao-Ying
name: Wang, Long
name: Lai, Shui-Qing
name: Zhang, Shu-Ting
name: Chen, Zhi-Jiang
name: Lin, Jin-xin
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy

description: Table S1. Distribution and difference between testosterone level and collection time. (DOCX 14 kb).
Exploring the Atmosphere of Neoproterozoic Earth: The Effect of O$_{2}$ on Haze Formation and Composition
Creators: name: Hörst, Sarah M.
name: He, Chao
name: Ugelow, Melissa S.
name: Jellinek, A. Mark
name: Pierrehumbert, Raymond T.
name: Tolbert, Margaret A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Previous studies of haze formation in the atmosphere of the Early Earth have focused on N$_{2}$/CO$_{2}$/CH$_{4}$ atmospheres. Here, we experimentally investigate the effect of O$_{2}$ on the formation and composition of aerosols to improve our understanding of haze formation on the Neoproterozoic Earth. We obtained in situ size, particle density, and composition measurements of aerosol particles produced from N$_{2}$/CO$_{2}$/CH$_{4}$/O$_{2}$ gas mixtures subjected to FUV radiation (115-400 nm) for a range of initial CO$_{2}$/CH$_{4}$/O$_{2}$ mixing ratios (O$_{2}$ ranging from 2 ppm to 0.2\%). At the lowest O$_{2}$ concentration (2 ppm), the addition increased particle production for all but one gas mixture. At higher oxygen concentrations (20 ppm and greater) particles are still produced, but the addition of O$_{2}$ decreases the production rate. Both the particle size and number density decrease with increasing O$_{2}$, indicating that O$_{2}$ affects particle nucleation and growth. The particle density increases with increasing O$_{2}$. The addition of CO$_{2}$ and O$_{2}$ not only increases the amount of oxygen in the aerosol, but it also increases the degree of nitrogen incorporation. In particular, the addition of O$_{2}$ results in the formation of nitrate bearing molecules. The fact that the presence of oxygen bearing molecules increases the efficiency of nitrogen fixation has implications for the role of haze as a source of molecules required for the origin and evolution of life. The composition changes also likely affect the absorption and scattering behavior of these particles but optical properties measurements are required to fully understand the implications for the effect on the planetary radiative energy balance and climate.
description: 15 pages, 3 tables, 8 figures, accepted in Astrophysical Journal
Plastic recovery and self-healing in longitudinally twinned SiGe nanowires
Creators: name: Shikder, MRA
name: Ramasubramanian, A
name: Maksud, M
name: Yurkiv, Vitaliy
name: Yoo, J
name: Harris, CT
name: Vasudevamurthy, G
name: Mashayek, Farzad
name: Subramanian, Arunkumar
Publisher: name: University of Illinois at Chicago
Year: 2021
Subjects: Uncategorized

description: This paper reports on plastic recovery and self-healing behavior in longitudinally-twinned and [112] orientated SiGe nanowire (NW) beams when they are subjected to large bending strains. The NW alloys are comprised of lamellar nanotwin platelet(s) sandwiched between two semi-cylindrical twins. The loading curves, which are acquired from atomic force microscope (AFM) based three-point bending tests, reveal the onset of plastic deformation at a characteristic stress threshold, followed by further straining of the NWs. This ductility is attributed to dislocation activity within the semi-cylindrical crystal portions of the NW, which are hypothesized to undergo a combination of elastic and plastic straining. On the other hand, the lamellar nanoplatelets undergo purely elastic stretching. During the unloading process, the release of internal elastic stresses enables dislocation backflow and escape at the surface. As a result, the dislocations are predominantly annihilated and the NW samples evidenced self-healing via plastic recovery even at ultra-large strains, which are estimated using finite-element models at 16.3% in one of the tested devices. Finite element analysis also establishes the independence of the observed nanomechanical behavior on the relative orientation of the load with respect to the nanoplatelet. This first observation of reversible plasticity in the SiGe material system, which is aided by a concurrent evolution of segmented elastic and plastic deformation within its grains during the loading process, presents an important new pathway for mechanical stabilization of technologically important group-IV semiconductor nanomaterials.
Constraints on Baryon-Nonconserving Yukawa Couplings in a Supersymmetric Theory
Creators: name: Brahmachari, Biswajoy
name: Roy, Probir
Publisher: name: arXiv
Year: 1994
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The 1-loop evolution of couplings in the minimal supersymmetric standard model, extended to include baryon nonconserving $(B\!\!\!/)$ operators through explicit $R$-parity violation, is considered keeping only $B\!\!\!/$ superpotential terms involving the maximum possible number of third generation superfields. If all retained Yukawa couplings $Y_i$ are required to remain in the perturbative domain $(Y_i < 1)$ upto the scale of gauge group unification, upper bounds ensue on the magnitudes of the $B\!\!\!/$ coupling strengths at the supersymmetry breaking scale, independent of the model of unification. They turn out to be similar to the corresponding fixed point values reached from a wide range of $Y_i$ (including all $Y_i$ greater than unity) at the unification scale. The coupled evolution of the top and $B\!\!\!/$ Yukawa couplings results in a reduction of the fixed point value of the former.
description: PRL-TH-94/8 and TIFR/TH/94-7, 15 pages, LaTeX
Orbital Motion of Young Binaries in Ophiuchus and Upper Centaurus-Lupus
Creators: name: Schaefer, G. H.
name: Prato, L.
name: Simon, M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present measurements of the orbital positions and flux ratios of 17 binary and triple systems in the Ophiuchus star forming region and the Upper Centaurus-Lupus cluster based on adaptive optics imaging at the Keck Observatory. We report the detection of visual companions in MML 50 and MML 53 for the first time, as well as the possible detection of a third component in WSB 21. For six systems in our sample, our measurements provide a second orbital position following their initial discoveries over a decade ago. For eight systems with sufficient orbital coverage, we analyze the range of orbital solutions that fit the data. Ultimately, these observations will help provide the groundwork toward measuring precise masses for these pre-main sequence stars and understanding the distribution of orbital parameters in young multiple systems.
description: 22 pages, 22 figures, 4 tables, accepted for publication in AJ
Enantioselective total syntheses of (−)-clavaminol A and deacetyl (+)-clavaminol H
Creators: name: Rachana Pandey
name: Gehlawat, Anju
name: Prakash, Ranjana
name: Satyendra Kumar Pandey
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences

description: An efficient enantioselective approach to the syntheses of (−)-clavaminol A and deacetyl (+)-clavaminol H is presented, starting from n-decanol. The synthesis features Sharpless asymmetric dihydroxylation (AD), regioselective epoxide formation/opening and α-tosylation as key steps.
Additional file 5: of Lung fluid biomarkers for acute respiratory distress syndrome: a systematic review and meta-analysis
Creators: name: Wang, Yishan
name: Wang, Huijuan
name: Zhang, Chunfang
name: Zhang, Chao
name: Yang, Huqin
name: Gao, Ruiyue
name: Tong, Zhaohui
Publisher: name: figshare
Year: 2019
Subjects: Space Science
Medicine
Cell Biology
Biological Sciences not elsewhere classified
Science Policy

description: Outcome of influence analysis. (DOCX 14 kb)
QCD Accurately Predicts the Induced Pseudoscalar Coupling Constant
Creators: name: Bernard, V.
name: Kaiser, N.
name: Meißner, Ulf-G.
Publisher: name: arXiv
Year: 1994
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Using chiral Ward identities of QCD, we derive a relation for the induced pseudoscalar coupling constant which is accurate within a few percent, $g_P = 8.44 \pm 0.16$.
description: 5pp, LaTeX, CRN-94/13
Ultraviolet laser spectroscopy of aluminum atoms in hollow-cathode lamp
Creators: name: Liu, Hongli
name: Yuan, Wenhao
name: Xu, Zetian
name: Deng, Ke
name: Lu, Zehuang
Publisher: name: arXiv
Year: 2018
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We report precision measurement of aluminum atoms ${^{2}P_{1/2}}-{^{2}S_{1/2}}$ transition at 394 nm and ${^{2}P_{3/2}}-{^{2}S_{1/2}}$ transition at 396 nm in a hollow-cathode lamp (HCL). Both absorption spectroscopy and saturated absorption spectroscopy (SAS) are performed. From the absorption spectroscopy the Doppler linewidth is estimated to be 2.6 GHz. The SAS spectroscopy is analyzed based on the velocity-changing-effect model. With a frequency comb calibrated wavemeter, the frequencies of ${^{2}P_{1/2}},{F=3}-{^{2}S_{1/2}},{F=2}$ transition and ${^{2}P_{3/2}},{F=4}-{^{2}S_{1/2}},{F=3}$ transition are measured to be 759.905401(10) THz and 756.547403(10) THz, respectively. The hyperfine structure constants of aluminum atoms are determined and compared with previously reported measurement results and theoretical calculation. Reasonable agreement is found for the magnetic dipole constant (A constant), while the electric quadrupole constant (B constant) has a large deviation.
description: 11 pages, 5 figures
Possible reason why leptons are lighter than quarks
Creators: name: Volkas, R. R.
Publisher: name: arXiv
Year: 1994
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The minimal model of spontaneously broken leptonic colour and discrete quark-lepton symmetry predicts that charged leptons have the same masses as their partner charge $+2/3$ quarks up to small radiative corrections. By invoking a different pattern of symmetry breaking, a similar model can be constructed with the structural feature that charged leptons have to be lighter than their partner quarks because of mixing between leptonic colours, provided mixing between generations is not too strong. As well as furnishing a new model-building tool, this is phenomenologically interesting because some of the new physics responsible for the quark-lepton mass hierarchy could exist on scales as low as several hundred GeV.
description: (some minor errors corrected, and role of multiple generations discussed more extensively. Will appear in Phys Rev D.), 8 pages, plain Latex, UM-P-94/19
Ultraviolet radiation and incidence of cataracts in a nationwide US cohort
Creators: name: Delavar, Arash
name: D. Michal Freedman
name: Velazquez-Kronen, Raquel
name: Little, Mark P.
name: Kitahara, Cari M.
name: Alexander, Bruce H.
name: Linet, Martha S.
name: Cahoon, Elizabeth K.
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Medicine
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Science Policy

description: Purpose: We examine the risk of cataract and cataract surgery with measures of ultraviolet radiation (UVR) exposure and UVR sensitivity in a large, nationwide population of indoor workers. Methods: Participants from the US Radiologic Technologists Study were followed from age at baseline survey (2003–2005) to age at earliest of cataract diagnosis, cataract surgery, or completion of last survey (2012–2013). UVR-related factors included satellite-based ambient UVR linked to lifetime residences, time spent outdoors across various age periods, history of blistering sunburns, prior diagnosis of keratinocyte carcinoma, and iris color. We used Cox proportional hazards models with age as timescale to compute hazard ratios (HRs) and 95% confidence intervals (CIs) for cataract and cataract surgery. Results: Participants had a median age of entry of 54.0 years, were 80.0% female, and 95.7% white. Of the 44, 891 eligible participants, 9399 cases of cataract and 3826 cases of cataract surgery were reported. Ambient UVR (quintile 5 vs. 1) was associated with an increased risk of cataract (HR = 1.08; 95% CI: 1.01–1.16) and cataract surgery (HR = 1.16; 95% CI: 1.05–1.29). Lifetime average time spent outdoors was not associated with cataract risk. History of blistering sunburns before and after age 15, but not previous keratinocyte carcinoma diagnosis was associated with both cataract and cataract surgery. Conclusion: Our results suggest a modest role for residence-based ambient UVR and cataract risk among indoor workers in the United States.
Quantum Scattering from Classical Field Theory
Creators: name: Gould, Thomas M.
name: Hsu, Stephen D. H.
name: Poppitz, Erich R.
Publisher: name: arXiv
Year: 1994
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that scattering amplitudes between initial wave packet states and certain coherent final states can be computed in a systematic weak coupling expansion about classical solutions satisfying initial value conditions. The initial value conditions are such as to make the solution of the classical field equations amenable to numerical methods. We propose a practical procedure for computing classical solutions which contribute to high energy two particle scattering amplitudes. We consider in this regard the implications of a recent numerical simulation in classical SU(2) Yang-Mills theory for multiparticle scattering in quantum gauge theories and speculate on its generalization to electroweak theory. The generalization of our results to complex trajectories allows its application to it any wave packet to coherent state transition. Finally, we discuss the relevance of these results to the issues of baryon number violation and multiparticle scattering at high energies.
description: 20 pages, JHU-TIPAC-940003, HUTP-A0/007, Latex, uses prepictex.tex, pictex.tex, and postpictex.tex (available by ftp from hep-ph@xxx.lanl.edu) to produce figures
Additional file 8: of Lung fluid biomarkers for acute respiratory distress syndrome: a systematic review and meta-analysis
Creators: name: Wang, Yishan
name: Wang, Huijuan
name: Zhang, Chunfang
name: Zhang, Chao
name: Yang, Huqin
name: Gao, Ruiyue
name: Tong, Zhaohui
Publisher: name: figshare
Year: 2019
Subjects: Medicine
Biological Sciences not elsewhere classified
Science Policy

description: Result of publication bias. (DOCX 13 kb)
Compact sub-kilohertz low-frequency quantum light source based on four-wave mixing in cesium vapor
Creators: name: Ma, Rong
name: Liu, Wei
name: Qin, Zhongzhong
name: Su, Xiaolong
name: Jia, Xiaojun
name: Zhang, Junxiang
name: Gao, Jiangrui
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Using a nondegenerate four-wave mixing (FWM) process based on a double-Λ scheme in hot cesium vapor, we demonstrate a compact diode-laser-pumped quantum light source for the generation of quantum correlated twin beams with a maximum squeezing of 6.5 dB. The squeezing is observed at a Fourier frequency in the audio band down to 0.7 kHz which, to the best of our knowledge, is the first observation of sub-kilohertz intensity-difference squeezing in an atomic system so far. A phase-matching condition is also investigated in our system, which confirms the spatial-multi-mode characteristics of the FWM process. Our compact low-frequency squeezed light source may find applications in quantum imaging, quantum metrology, and the transfer of optical squeezing onto a matter wave.
description: 5 pages, 4 figures
Preparation and enzymatic resolution of 3-hydroxy fatty acid nicotinyl esters
Creators: name: Metternich, Justus T.
name: Hüttenhain, Stefan H.
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Pharmacology
subject: Biotechnology
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: Developmental Biology
subject: Cancer
subject: Plant Biology
subject: Computational Biology

description: A general method is presented for the preparation of homochiral 3-hydroxy fatty acid nicotinyl ester. The pyridine moiety of the esters strongly moderates the reactivity of the borane. Incomplete conversion, however, was overcome by Lewis acid catalysis. Additionally, his structural element seems to be responsible for an improvement of the enzymatic resolution compared to the respective alkyl esters. The resolved enantiomers will be the basic material for liposome building molecules of different chirality.
Synthesis of sulfur-doped carbon nanotubes from sulfur powder using chemical vapor deposition
Creators: name: Fahimeh Hassani
name: Tavakol, Hossein
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
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: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Sulfur-doped carbon nanotubes (SCNT) with high sulfur contents have been prepared using chemical vapor deposition (CVD) from sulfur powder, acetylene gas and Fe/CaCO3 (as catalyst). In this regard, various growth's temperatures were examined to investigate its effects on the structure and the sulfur content of prepared SCNT. The best condition was obtained at 700°C and using 4 g of sulfur powder. The product was characterized using FE-SEM and EDS, which showed rode-like SCNT with about 40 nm diameter and 10.75% sulfur content. Moreover, TEM, Raman and XPS analyses were employed to obtain more details related to the product. The XPS results confirmed the presence of sulfur atoms, which covalently incorporated in the carbon framework. Finally, the catalytic ability of the product in oxygen evolution reaction was examined and the results showed high stability and low oxygen production rate for this product.
title: Концепт «мягкой силы» в зеркале критической теории буржуазного западного общества
Creators: name: Смирнов, Василий
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2021

description: В статье анализируется применение технологий «мягкой силы» в призме критических теории буржуазного общества Г. Дебора, Г. Маркузе и А. Грамши. «Ненасильственные» методы властвования используются не только на международной арене, но и «внутри» страны, когда элиты пытаются установить господство над
массами с помощью применения манипулятивных технологий.
Experimental TDPAC and Theoretical DFT Study of Structural, Electronic, and Hyperfine Properties in ($^{111}$In-->) $^{111}$Cd-Doped SnO$_2$ Semiconductor: Ab Initio Modeling of the Electron-Capture-Decay After-Effects Phenomenon
Creators: name: Darriba, Germán N.
name: Muñoz, Emiliano L.
name: Carbonari, Artur W.
name: Rentería, Mario
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this paper we investigate the effect of Cd doping at ultra-low concentrations in SnO$_2$ both experimentally, by measuring the temperature dependence of the electric quadrupole hyperfine interactions with time-differential perturbed angular correlation (TDPAC) spectroscopy using $^{111}$Cd as probe nuclei, and theoretically, by performing first-principles calculations based on the density functional theory. TDPAC spectra were successfully analyzed with a time-dependent on-off model for the perturbation factor. These results show combined dynamic plus static interactions whose electric-field gradients were associated in this model to different stable electronic configurations close to the Cd atoms. The dynamic regime is then originated in fast fluctuations between these different electronic configurations. First-principles calculations results show that the Cd impurity introduces a double acceptor level in the top of the valence band of the doped semiconductor and produces isotropic outward relaxations of the nearest oxygen neighbors. The variation of the calculated electric-field gradient tensor as a function of the charge state of the Cd impurity level shows an interesting behavior that explains the experimental results, giving strong support from first-principles to the electron-capture after-effects proposed scenario. The electron-capture decay of the parent $^{111}$In to $^{111}$Cd as well as the double acceptor character of the $^{111}$Cd impurity and the electric nature of the host are shown to contribute to the existence of these type of time-dependent hyperfine interactions.
description: 35 pages, 2 Tables and 9 Figures
A Kinematic Link between Boxy Bulges, Stellar Bars, and Nuclear Activity in NGC 3079 & NGC 4388
Creators: name: Veilleux, S.
name: Bland-Hawthorn, J.
name: Cecil, G.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present direct kinematic evidence for bar streaming motions in two active galaxies with boxy stellar bulges. The Hawaii Imaging Fabry-Perot Interferometer was used on the Canada-France-Hawaii 3.6-m telescope and the University of Hawaii 2.2-m telescope to derive the two-dimensional velocity field of the line-emitting gas in the disks of the Sc galaxy NGC 3079 and the Sb galaxy NGC 4388. In contrast to previous work based on long-slit data, the detection of the bar potential from the Fabry-Perot data does not rely on the existence of inner Lindblad resonances or strong bar-induced shocks. Simple kinematic models which approximate the intrinsic gas orbits as nonintersecting, inclined elliptical annuli that conserve angular momentum characterize the observed velocity fields. Box-shaped bulges in both NGC 3079 and NGC 4388 are confirmed using new near-infrared images to reduce dust obscuration. Morphological analysis of starlight in these galaxies is combined with the gas kinematics derived from the Fabry-Perot spectra to test evolutionary models of stellar bars that involve transitory boxy bulges, and to quantify the importance of such bars in fueling active nuclei. Our data support the evolutionary bar models, but fail to prove convincingly that the stellar bars in NGC 3079 and NGC 4388 directly trigger or sustain the nuclear activity. (abridged)
description: 31 pages, 18 figures, Latex, requires aaspp4.sty. Accepted for the Astronomical Journal (November issue)
title: ADCO, Cartulaire des Dominicains de Dijon (1286), Cart. 221 (H 53), 170 folios, f. 0088
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Cartulaire des Dominicains de Dijon (1286), Archives départementales de la Côte-d'Or, Cart. 221 (H 53), 170 folios. Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire des Dominicains de Dijon (1286), Archives départementales de la Côte-d'Or, Cart. 221 (H 53), 170 folios, f. 0088, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: Dijon
description: Provenance: http://www.wikidata.org/entity/Q7003
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb15250518p
description: Provenance: http://www.idref.fr/02643413X/id
description: Provenance: https://www.geonames.org/6453767
Additional file 1: of Canadian family physician job satisfaction - is it changing in an evolving practice environment? An analysis of the 2013 National Physician Survey database
Creators: name: Malhotra, Jana
name: Wong, Eric
name: Thind, Amardeep
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Marine Biology

description: National Physician Survey 2013. A copy of the National Physician Survey distributed to all Canadian physicians in 2013. (PDF 173 kb)
Supplemental Figures and Tables from Increased reproductive investment associated with greater survival and longevity in Cassin's auklets
Creators: name: Johns, Michael E.
name: Warzybok, Pete
name: Bradley, Russell W.
name: Jahncke, Jaime
name: Lindberg, Mark
name: Breed, Greg A.
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: 60801 Animal Behaviour

description: Additional figures and tables describing cumulative number of chicks fledged, conceptual diagram of multistate model, age at first reproduction, nest box fidelity, and summary statistics.
Low energy range dielectronic recombination of Fluorine-like Fe17+ at the CSRm
Creators: name: Khan, Nadir
name: Huang, Zhong-Kui
name: Wen, Wei-Qiang
name: Mahmood, Sultan
name: Dou, Li-Jun
name: Wang, Shu-Xing
name: Xu, Xin
name: Wang, Han-Bing
name: Chen, Chong-Yang
name: Chuai, Xiao-Ya
name: Zhu, Xiao-Long
name: Zhao, Dong-Mei
name: Mao, Li-Jun
name: Li, Jie
name: Yin, Da-yu
name: Yang, Jian-Cheng
name: Yuan, You-Jin
name: Zhu, Lin-Fan
name: Ma, Xin-Wen
Publisher: name: arXiv
Year: 2018
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The accuracy of dielectronic recombination (DR) data for astrophysics related ions plays a key role in astrophysical plasma modeling. The measurement of the absolute DR rate coefficient of Fe17+ ions was performed at the main cooler storage ring at Institute of Modern Physics, Lanzhou, China. The experimental electron-ion collision energy range covers first Rydberg series up to n = 24 for the DR resonances associated with the 2P1/2--2P3/2 dn = 0 core excitations. A theoretical calculation was performed by using FAC code and compared with the measured DR rate coefficient. Overall reasonable agreement was found between the experimental results and calculations. Moreover, plasma rate coefficient was deduced from the experimental DR rate coefficient and compared with the available results from the literature. At the low energy range significant discrepancies were found therein and the measured resonances challenged state-of-the-art theory at the low collision energies.
description: to be published in Chinese Physics C
Short Note on Space Wind Powered by Disorder: Dark Energy
Creators: name: Kavak, Mesut
Publisher: name: figshare
Year: 2018
Subjects: General Relativity
Quantum Mechanics
Special Relativity
Entropy

description: After midnight just before sleeping, I noticed in my bed, that free space itself can cause a parachute effect on the moving bodies especially the bodies move in low gravitational fields like in Pioneer Anomaly. Because of this reason, while speed of a satellite is decreasing, speed of another one which spins around the world on different axis can increase; a satellite wandering in interstellar medium can speed up as also it can slow down; low frequency light and high frequency light behave differently; galaxies have lower mass can spin faster since mutual gravitation is not only option. These are only a few examples.
The Inception of Star Cluster Formation Revealed by [CII] Emission Around an Infrared Dark Cloud
Creators: name: Bisbas, Thomas G.
name: Tan, Jonathan C.
name: Csengeri, Timea
name: Wu, Benjamin
name: Lim, Wanggi
name: Caselli, Paola
name: Guesten, Rolf
name: Ricken, Oliver
name: Riquelme, Denise
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present SOFIA-upGREAT observations of [CII] emission of Infrared Dark Cloud (IRDC) G035.39-00.33, designed to trace its atomic gas envelope and thus test models of the origins of such clouds. Several velocity components of [CII] emission are detected, tracing structures that are at a wide range of distances in the Galactic plane. We find a main component that is likely associated with the IRDC and its immediate surroundings. This strongest emission component has a velocity similar to that of the $^{13}$CO(2-1) emission of the IRDC, but offset by $\sim3\:{\rm km\:s}^{-1}$ and with a larger velocity width of $\sim9\:{\rm km\:s}^{-1}$. The spatial distribution of the [CII] emission of this component is also offset predominantly to one side of the dense filamentary structure of the IRDC. The CII column density is estimated to be of the order of $\sim10^{17}-10^{18}\,{\rm cm}^{-2}$. We compare these results to the [CII] emission from numerical simulations of magnetized, dense gas filaments formed from giant molecular cloud (GMC) collisions, finding similar spatial and kinematic offsets. These observations and modeling of [CII] add further to the evidence that IRDC G035.39-00.33 has been formed by a process of GMC-GMC collision, which may thus be an important mechanism for initiating star cluster formation.
description: 5 pages, 4 figures, submitted to MNRAS Letters
Controllable Majorana fermions on domain walls of a magnetic topological insulator
Creators: name: Wang, Jing
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We propose to realize a one-dimensional chiral topological superconducting state at the magnetic domain walls stripe of a magnetic topological insulator coupled with a conventional $s$-wave superconductor. The localized Majorana zero modes can be constructed in a reconfigurable manner through magnetic domain writing by magnetic force microscopy. This proposal could be further extended to the Majorana zero modes at domain walls on superconducting spin-helical Dirac surface states, and may be applicable to the two-dimensional time-reversal invariant topological superconductor on FeTe$_{0.5}$Se$_{0.5}$ surface.
description: 5.5 pages, 4 figures
Calibrating the Mixing Length Parameter for a Red Giant Envelope
Creators: name: Asida, S. M.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Two-dimensional hydrodynamical simulations were made to calibrate the mixing length parameter for modeling red giant's convective envelope. As was briefly reported in Asida & Tuchman (97), a comparison of simulations starting with models integrated with different values of the mixing length parameter, has been made. In this paper more results are presented, including tests of the spatial resolution and Large Eddy Simulation terms used by the numerical code. The consistent value of the mixing length parameter was found to be 1.4, for a red giant of mass 1.2 solar-mass, core mass of 0.96 solar-mass, luminosity of 200 solar-luminosities, and metallicity Z=0.001.
description: 18 pages, 1 table, 13 figures. Accepted for publication in Ap.J
Advocating output criteria based scientific and research  methodologies: Why the reliability of scientific and  research methods must be measured based on output  criteria and attributes
Creators: name: Rao Mandavilli, Sujay
Publisher: name: Zenodo
Year: 2024

description: This is one of our several publications on research method and research methodology. In this paper, we support the idea of a structured and formal approach to scientific research. However, there may be many different exceptions to this as all types of research problems may not lend themselves to research in the form of pre-determined steps. Thus, the first preference would be to follow a standard and a highly structured and formalized scientific method wherever this is possible. In case this is not possible, the second preference would be to follow a self or scholar defined scientific method, but the latter is usually equally rigorous as well, with pre-defined and pre-determined steps. The third and last preference: is to follow a free-form approach where the steps are not pre-defined to a high degree. In such as case, the researcher refines the method as the research evolves and progresses and the time goes by. However, we can only support a structured and a graduated approach to free-form method, and the reliability of output must also be always borne in mind. As such, this is expected to be a vastly superior approach to a completely free-form method, and could lead to a vastly superior research output. The method followed must preferably be documented, but this may not always be possible or necessary. At the very least, the essential characteristics of good science such as objectivity, reliability, accuracy, comprehensiveness, rigour, and precision besides may others must be adhered to. We are aware that the quality of research output in developing countries is low. Therefore, this paper also keeps in mind our philosophy of the globalization of science, and the enhanced quality and quantity of scientific output in all contexts and situations.
Short Note on Space Wind Powered by Disorder: Dark Energy
Creators: name: Kavak, Mesut
Publisher: name: figshare
Year: 2018
Subjects: General Relativity
Quantum Mechanics
Special Relativity
Entropy

description: After midnight just before sleeping, I noticed in my bed, that free space itself can cause a parachute effect on the moving bodies especially the bodies move in low gravitational fields like in pioneer anomaly. Because of this reason, while speed of a satellite is decreasing, speed of another one which spins around the world on different axis can increase; a satellite wandering in interstellar medium can speed up as also it can slow down; low frequency light and high frequency light behavior differently. These are only a few examples.
title: Мифотворчество и саморефлексия: о некоторых размышлениях А. М. Пятигорского
Creators: name: Ставицкий, А.
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2021

description: Статья посвящена рассмотрению авторского мифа, который возникает у каждого исследователя мифологии и показывает, какую роль в процессе познания мифа играет саморефлексия. В качестве примера и исходного материала для этого используются рассуждения философа А. М. Пятигорского.
Simple Seismic Tests of the Solar Core
Creators: name: Kennedy, Dallas C.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A model-independent reconstruction of mechanical profiles (density, pressure) of the solar interior is outlined using the adiabatic sound speed and bouyancy frequency profiles. These can be inferred from helioseismology if both p- and g-mode frequencies are measured. A simulated reconstruction is presented using a solar model bouyancy frequency and available sound speed data.
description: 8 pages, 4 figures, uses AASTeX; revised for publication; accepted by Astrophysical Journal