cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Supermassive black holes and their host spheroids III. The $M_{BH} - n_{sph}$ correlation
Creators: name: Savorgnan, Giulia A. D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The Sérsic $R^{1/n}$ model is the best approximation known to date for describing the light distribution of stellar spheroidal and disk components, with the Sérsic index $n$ providing a direct measure of the central radial concentration of stars. The Sérsic index of a galaxy's spheroidal component, $n_{sph}$, has been shown to tightly correlate with the mass of the central supermassive black hole, $M_{BH}$. The $M_{BH}-n_{sph}$ correlation is also expected from other two well known scaling relations involving the spheroid luminosity, $L_{sph}$: the $L_{sph}-n_{sph}$ and the $M_{BH}-L_{sph}$. Obtaining an accurate estimate of the spheroid Sérsic index requires a careful modelling of a galaxy's light distribution and some studies have failed to recover a statistically significant $M_{BH}-n_{sph}$ correlation. With the aim of re-investigating the $M_{BH}-n_{sph}$ and other black hole mass scaling relations, we performed a detailed (i.e.~bulge, disks, bars, spiral arms, rings, halo, nucleus, etc.) decomposition of 66 galaxies, with directly measured black hole masses, that had been imaged at $3.6\rm~μm$ with Spitzer. In this paper, the third of this series, we present an analysis of the $L_{sph}-n_{sph}$ and $M_{BH}-n_{sph}$ diagrams. While early-type (elliptical+lenticular) and late-type (spiral) galaxies split into two separate relations in the $L_{sph}-n_{sph}$ and $M_{BH}-L_{sph}$ diagrams, they reunite into a single $M_{BH} \propto n_{sph}^{3.39 \pm 0.15}$ sequence with relatively small intrinsic scatter ($ε\simeq 0.25 \rm~dex$). The black hole mass appears to be closely related to the spheroid central concentration of stars, which mirrors the inner gradient of the spheroid gravitational potential.
description: Accepted for publication in ApJ
In-depth Exposure of New Phase in Poly-Silicon of TOPCon Device: Is Phosphorus Bonded Oxygen Present?
Creators: name: Ma, Z.Q.
name: Wang, Y.L.
name: Lan, Z.X.
Publisher: name: WIP
Year: 2022
Subjects: Silicon Materials and Cells
Characterisation & Simulation of Si Cells

description: 8th World Conference on Photovoltaic Energy Conversion; 159-164
description: For the TOPCon PV device, the heavy phosphorus (P) – doped polycrystalline silicon layer (n+-poly-Si) with ultra-thin silicon oxide (a-SiOx) is extremely beneficent for passivating contact and electron selectivity as its exceptional coupled microstructure (chemical components and physical phase) and optoelectric properties, compared with other passivation materials. However, an unknown configuration of oxygen (O) and phosphorus (P) in the n+-poly Si film is still open for investigation. The findings of the P-O bonds (bridge and non-bridge linkages) in the whole scope of n+-poly Si film have been implemented by X-ray photoelectron spectroscopy (XPS) in the mode of depth profile measurements of P 2p, O 1s, and Si 2p states. The symbolic binding energies (BEs) with a shoulder in the range of 126 – 142 eV for the P 2p state and the other two photon-emission peaks of the O 1s state centered at 532 and 535 eV, respectively, were obtained by an occasional survey of SiOx composition. Furthermore, the Grazing incidence Xray diffraction (GIXRD) measurements of the n+-poly Si films showed that the typical nano-crystallinity with grain sizes of 38-45 nm is obtained. The derivatives of oxidized phosphorite localized at grain boundaries (GBs) were tentatively analyzed through thermodynamic functions. In addition, the segregation of P and O compositions was detected by energy dispersive X-ray (EDX) patterns for the surface-textured (pyramid) wafer, while there is no segregation of elements or compounds in the planar n+-poly Si film.
Cut out for Efficiency: A Detailed LBIC Study of Edge Recombination in Cut-Cell Silicon Photovoltaics
Creators: name: Kikelj, M.
name: Lipovšek, B.
name: Bokaličc, M.
name: Topic, M.
Publisher: name: WIP
Year: 2022
Subjects: Silicon Materials and Cells
Characterisation & Simulation of Si Cells

description: 8th World Conference on Photovoltaic Energy Conversion; 165-168
description: In our work we aim to, with the help of numerical modelling on one side and subsequent correlation with spatially resolved measurements on the other, qualitatively evaluate and quantitatively determine the recombination parameters of cut edges of silicon solar cells, which govern the efficiency decreases of cut-cells obtained by different cell separation techniques (cleaving, laser ablation and cleaving, thermal laser separation). With the proposed approach, we were able to recreate an LBIC scan of a healthy part of a separated Zebra IBC cell in high detail.
A New Technological and Environmentally Sustainable Long-Term Supply-Chain Solution for The Mass Production of High Purity Silica From Canada
Creators: name: Weeden, L.
name: Bullen, B.
name: Needham, T.
Publisher: name: WIP
Year: 2022
Subjects: Silicon Materials and Cells
Feedstock, Crystallisation, Wafering, Defect Engineering

description: 8th World Conference on Photovoltaic Energy Conversion; 153-158
description: A cost effective and sustainable ESG (Environmental, Social and Governance) compliant supply of high purity silica is required to advance photovoltaic technology moving to net zero 2050 targets. Although silica is one of the most abundant minerals on Earth, it is the rarer pure silica which is in the highest demand for photovoltaics and emission reduction efforts. Discovered in Manitoba, Canada, and approximately 55 m below surface exists an unconsolidated, freshwater aquifer formation of high purity silica sand. Once brought to surface by an environmentally friendly patent pending extraction process, and passing through a simple, chemical free process, the purity averages 99.9% with zero ppm to trace amounts of Boron and Phosphorous. Continued lab testing and processing studies have demonstrated successful beneficiation results of 99.99%. The Extraction Method utilizes a perforated Extraction Apparatus in a wellbore and air circulation to create a low-pressure zone allowing silica sand to flow into the apparatus and to surface. This extraction process eliminates many of the environmental impacts and excessive costs of open-pit mining. With over 13 billion tonnes of high purity silica in place, and a focus on environmental stewardship and sustainable mining, this unique silica sand mine will contribute to the worldwide effort to reduce emissions.
On function compositions that are polynomials
Creators: name: Aichinger, Erhard
Publisher: name: arXiv
Year: 2016
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 13B25 (Primary), 12E05 (Secondary)

description: For a polynomial map $\mathbf{f} : k^n \to k^m$ ($k$ a field), we investigate those polynomials $g \in k[t_1,\ldots, t_n]$ that can be written as a composition $g = h \circ \mathbf{f}$, where $h: k^m \to k$ is an arbitrary function. In the case that $k$ is algebraically closed of characteristic $0$ and $\mathbf{f}$ is surjective, we will show that $g = h \circ \mathbf{f}$ implies that $h$ is a polynomial.
Abrodictyum rigidum Ebihara & Dubuisson Dubuisson 2006
Creators: name: Dubuisson, Jean-Yves
name: Bauret, Lucie
name: Grall, Aurelie
name: Li, Tian
name: Ebihara, Atsushi
name: Hennequin, Sabine
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Polypodiopsida
Hymenophyllales
Hymenophyllaceae
Abrodictyum
Abrodictyum rigidum

description: Abrodictyum rigidum (Sw.) Ebihara & Dubuisson (Neotropical specimens)
 BRAZIL. Rio de Janeiro: Pico da Tijuca, April 1873, A. Glaziou 7033 (P01304059); without locality, A. Glaziou 16646 (P01304062), 16646 bis (P01304063), without locality, A. Glaziou s.n. (P01304068, P01304069); Corcovado, September 1867, A. Glaziou s.n. (P01304071); without locality, C. Gaudichaud 214 (P01304077). Minas Gerais: Sabará, 1843, H. G. Galeotti s.n. (P01304088).
 COSTA RICA. Without locality: March 1957, I. Dorfler 573 (P 01304110).
 CUBA. Santiago de Cuba: Loma del Gato, 1923, Clement? 692 (P 01417312), 692 bis (P 01417313).
 FRENCH GUIANA. Without locality: without collector (P 01304023); without locality, 1847, M le Prieur 250 (P 01304025), 250 bis (P 01304026).
 GUADELOUPE. Without locality: Herb. Lherminier, without collector (P01304134, P01417309, P01417319). Basse Terre: Matouba, 1882, Père Duss 4290 (P01419708); Matouba, March 2005, M. J. M. Christenhusz 4135 (P01304137).
 GUATEMALA. Izabal: Sierra de Santa Cruz, September 1876, Bernoulli & Cario 269 (P 01304126).
 JAMAICA. Surrey - Portland: Mabess River, April 1903, W. R. Maxon 1542 (P01304148); John Crow Mountain, June 1926, W. R. Maxon 9332 (P01304130); Hollywell Recreational Park, January 2004, M. J. M. Christenhusz 3033 (P01304142); John Crow Mountain, January 2004, M. J. M. Christenhusz 3160 (P01304138).
 MARTINIQUE. Without locality: 1846, without collector (P 01304101); 1859, M. Bélanger 416 (P 01304141).
 NICARAGUA. Granada: Mombacho, December 1973, J. T. Atwood et al. 6722 (P 01419710).
 SURINAME. Without locality: March 1922, without collector 5602 (P 01304129).
 VENEZUELA. Merida: Without locality 1846, Funck & Schlim 951 (P 01430119).
 APPENDIX 2. Selected taxa for the molecular phylogeny with preliminary taxonomic treatment, voucher and origin for selected specimens, and Genbank accession for rbcL sequences (or references).
...continued on the next page
 APPENDIX 2. (Continued)
description: Published as part of Dubuisson, Jean-Yves, Bauret, Lucie, Grall, Aurelie, Li, Tian, Ebihara, Atsushi & Hennequin, Sabine, 2016, Discussion on the taxonomy of African fern Abrodictyum rigidum (Sw.) Ebihara & Dubuisson and description of two new Abrodictyum C. Presl species (Hymenophyllaceae, Polypodiidae) for the Afro-Malagasy region, pp. 151-168 in Phytotaxa 284 (3) on pages 167-168, DOI: 10.11646/phytotaxa.284.3.1, http://zenodo.org/record/13645125
On the efficient acceleration of clouds in active galactic nuclei
Creators: name: Waters, Tim
name: Proga, Daniel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In the broad line region of AGN, acceleration occurs naturally when a cloud condenses out of the hot confining medium due to the increase in line opacity as the cloud cools. However, acceleration by radiation pressure is not very efficient when the flux is time-independent, unless the flow is one-dimensional. Here we explore how acceleration is affected by a time-varying flux, as AGN are known to be highly variable. If the period of flux oscillations is longer than the thermal timescale, we expect the gas to cool during the low flux state, and therefore line opacity should quickly increase. The cloud will receive a small kick due to the increased radiation force. We perform hydrodynamical simulations using Athena to confirm this effect and quantify its importance. We find that despite the flow becoming turbulent in 2D due to hydrodynamic instabilities, a 20% modulation of the flux leads to a net increase in acceleration --- by more than a factor of 2 --- in both 1D and 2D. We show that this is sufficient to produce the observed line widths, although we only consider optically thin clouds. We discuss the implications of our results for photoionization modeling and reverberation mapping.
description: Submitted to MNRAS Letters. Simulations can be viewed online at http://www.physics.unlv.edu/astro/wp16sims.html
Chimera patterns in the Kuramoto-Battogtokh model
Creators: name: Smirnov, L. A.
name: Osipov, G. V.
name: Pikovsky, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Kuramoto and Battogtokh [Nonlinear Phenom. Complex Syst. 5, 380 (2002)] discovered chimera states represented by stable coexisting synchrony and asynchrony domains in a lattice of coupled oscillators. After reformulation in terms of local order parameter, the problem can be reduced to partial differential equations. We find uniformly rotating periodic in space chimera patterns as solutions of a reversible ordinary differential equation, and demonstrate a plethora of such states. In the limit of neutral coupling they reduce to analytical solutions in form of one- and two-point chimera patterns as well as localized chimera solitons. Patterns at weakly attracting coupling are characterized by virtue of a perturbative approach. Stability analysis reveals that only simplest chimeras with one synchronous region are stable.
description: 5 pages, 6 figures
Decoherence of a quantum two-level system by spectral diffusion
Creators: name: Matityahu, Shlomi
name: Shnirman, Alexander
name: Schön, Gerd
name: Schechter, Moshe
Publisher: name: arXiv
Year: 2016
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the dephasing of an individual high-frequency tunneling two-level system (TLS) due to its interaction with an ensemble of low-frequency thermal TLSs which are described by the standard tunneling model (STM). We show that the dephasing by the bath of TLSs explains both the dependence of the Ramsey dephasing rate on an externally applied strain as well as its order of magnitude, as observed in a recent experiment [J. Lisenfeld et al.]. However, the theory based on the STM predicts the Hahn-echo protocol to be much more efficient, yielding too low echo dephasing rates, as compared to the experiment. Also the strain dependence of the echo dephasing rate predicted by the STM does not agree with the measured quadratic dependence, which would fit to a high-frequency white noise environment. We suggest that few fast TLSs which are coupled much more strongly to the strain fields than the usual TLSs of the STM give rise to such a white noise. This explains the magnitude and strong fluctuations of the echo dephasing rate observed in the experiment.
description: 13 pages, 4 figures
Estimating dimension of inertial manifold from unstable periodic orbits
Creators: name: Ding, X.
name: Chaté, H.
name: Cvitanović, P.
name: Siminos, E.
name: Takeuchi, K. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We provide numerical evidence that a finite-dimensional inertial manifold on which the dynamics of a chaotic dissipative dynamical system lives can be constructed solely from the knowledge of a set of unstable periodic orbits. In particular, we determine the dimension of the inertial manifold for Kuramoto-Sivashinsky system, and find it to be equal to the `physical dimension' computed previously via the hyperbolicity properties of covariant Lyapunov vectors.
description: 6 pages, 3 pdf figures, uses revtex4
Amplification, Decoherence, and the Acquisition of Information by Spin Environments
Creators: name: Zwolak, Michael
name: Riedel, C. Jess
name: Zurek, Wojciech H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum Darwinism recognizes the role of the environment as a communication channel: Decoherence can selectively amplify information about the pointer states of a system of interest (preventing access to complementary information about their superpositions) and can make records of this information accessible to many observers. This redundancy explains the emergence of objective, classical reality in our quantum Universe. Here, we demonstrate that the amplification of information in realistic spin environments can be quantified by the quantum Chernoff information, which characterizes the distinguishability of partial records in individual environment subsystems. We show that, except for a set of initial states of measure zero, the environment always acquires redundant information. Moreover, the Chernoff information captures the rich behavior of amplification in both finite and infinite spin environments, from quadratic growth of the redundancy to oscillatory behavior. These results will considerably simplify experimental testing of quantum Darwinism, e.g., using nitrogen vacancies in diamond.
description: 10 pages, 5 figures
Evaluation of the Effect of Surface Structure on Flexibility of Si Wafers for Flexible c-Si Solar Cells
Creators: name: Ide, K.
name: Hara, Y.
name: Nishihara, T.
name: Yokogawa, R.
name: Nakamura, K.
name: Ohshita, Y.
name: Kawatsu, T.
name: Nagai, T.
name: Yamada, N.
name: Miyashita, Y.
name: Aoki, Y.
name: Kobayashi, H.
name: Ogura, A.
Publisher: name: WIP
Year: 2022
Subjects: Silicon Materials and Cells
Feedstock, Crystallisation, Wafering, Defect Engineering

description: 8th World Conference on Photovoltaic Energy Conversion; 149-152
description: The Ball-on-Ring test, a type of biaxial bending test that can evaluate the three dimensions flexibility using the maximum bending deflection at crystalline Si wafer fracture. The wafer flexibility was improved by slice damage removal etching process, significantly. And texture formation on the wafer surface decreased flexibility. Furthermore, we found that the flexibility was recovered by mixed acid etching. However, the recovery was not completed as good as before the texturing. SEM observation of the area near the fracture starting point of these samples showed that fracture proceeded along the valley of the pyramidal structure. Further magnification showed that the valleys were rounded off by mixed acid etching. The rounded valleys of the textured structure, mitigated the fracture. Meanwhile reflectance measurements showed that the mixed acid etching had no significant effect on reflectance.
title: Analysis of a turbulent wind field in a street canyon: Good agreement between LES model results and data from a mobile platform
Creators: name: Paas, Bastian
name: Zimmermann, Timo
name: Klemm, Otto
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2023
Subjects: subject: 550 Earth sciences

description: Urban wind fields are of concern because the near-ground wind vector drives the ventilation of cities, which involves, among other things, the translocation and dilution of air pollutants. To study flow patterns in the urban atmospheric boundary layer, turbulence-resolving tools are needed since numerous roughness elements are present that cause the flow to be of highly turbulent nature. Therefore, we developed a mobile, fastresponse measurement platform that is situated on a cargo bicycle. This mobile platform was deployed in a case study collecting data at street level within a complex, urban area that includes street canyons, open squares, street intersections as well as courtyard entrances. Results were compared to numerical large eddy simulation (LES) data from the model PALM. Outcomes of both methods were qualitatively analyzed; results show that both methods were able to identify complex flow patterns, including small-scale structures such as jetting flows, vortices, recirculation areas, and a convergence zone where air masses collide. Results of both methods generally matched well, even for areas that featured highly complex, three-dimensional flow structures. We conclude that both the model PALM and the mobile platform are valuable tools for gathering insights about complex flow structures in real-world environments.
description: Finanziert durch den Open-Access-Publikationsfonds der Westfälischen Wilhelms-Universität Münster (WWU Münster).
The Effects of Outsourcing Logistics Activities of Ethiopian Airlines on its Logistics Performance
Creators: name: Assefa, Melkam
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: The impracticality of excelling at every task force companies to outsource some of their activities especially logistics activities mostly considered as support activities by many companies. The purpose of this study is to learn the rationale of Ethiopian Airlines behind outsourcing of its logistics activities and study the impact of outsourcing Logistics activities of Ethiopian airlines on logistics performance. The study is carried out using descriptive survey method. The researcher included 42 respondents using census. Data was gathered from the respondents by using questionnaires and interview, respectively. Frequency, percentage and mean were used to analyze data collected through questionnaire while the data obtained through interview was analyzed qualitatively. The study discovered that the main reasons of Ethiopian Airlines for outsourcing its logistics activities is need to access outside expertise, efficient utilization of company's asset and saving in capital investment. Further, the result indicated that Ethiopian Airlines benefited in the form of access to outside expertise, saving in capital investment and efficient utilization of company's asset. The study revealed that the main challenge faced by Ethiopian Airlines is inefficient management of outsourced freight forwarding activities. The major performance metrics Ethiopian uses to value the freight forwarding service providers is based on time delivery of their shipments, responsiveness and flexibility to the needs of Ethiopian by the service providers and overall quality respectively. Finally, it is recommended that, in collaboration with the Ethiopian Customs and Revenue authority Ethiopian Airlines should avail customs clearance training to its employees so that they could be licensed as it will help them control and support the TPL providers and it is also one step forward for their long run plan of performing freight forwarding and customs clearance activities in house. Building up its employees' ability to enable them to monitor outside service providers and strict application of performance metrics on the freight forwarding service providers are the other recommendations forwarded. Key words: Logistics, Freight forwarding, Logistics Outsourcing, Logistics Performance, Performance metrics
Effect of Different AlOx Passivation Layers Deposited by APCVD and ALD on LeTID
Creators: name: Mehler, M.
name: Geml, F.
name: Schmid, A.
name: Zuschlag, A.
name: Hahn, G.
Publisher: name: WIP
Year: 2022
Subjects: Silicon Materials and Cells
Feedstock, Crystallisation, Wafering, Defect Engineering

description: 8th World Conference on Photovoltaic Energy Conversion; 142-144
description: In this work the influence of AlOx, acting as a barrier layer for in-diffusion of H from a H-rich dielectric layer, on the strength and kinetics of the LeTID (light- and elevated temperature-induced degradation) phenomenon was investigated. For this purpose, different AlOx passivating layers deposited by different deposition methods, APCVD (atmospheric pressure chemical vapor deposition) and ALD (atomic layer deposition), are considered. Since the composition and material properties of the AlOx layers, fabricated in the two different deposition systems, are not exactly the same, the LeTID defect kinetics may differ. In the first experiment, by varying the AlOx layer thickness, it could be confirmed that on Cz material the AlOx layers grown by ALD and APCVD both function as a barrier layer for H. In the second experiment, the comparison of the different AlOx layers from APCVD and ALD was considered in more detail. The deposition temperature was varied for the respective methods, but the AlOx layer thickness of 10 nm remains constant for all samples. To obtain conclusions on the LeTID behavior and the H content in the Si bulk, excess charge carrier lifetime and BH measurements have been performed on the samples. Besides the AlOx single layers, AlOx/SiNy:H stacks were also investigated. The results show that the APCVD AlOx layer is more permeable to H than the AlOx layer grown by ALD. Alternatively, the obtained results could also be explained assuming that the APCVD layer contains generally more H in the layer than the ALD AlOx layer. The findings can help to better understand the origin of LeTID and find new processing sequences that can avoid or minimize the occurrence of LeTID, leading to higher stabilized efficiencies for high efficiency cell concepts.
Modelling of Eddy-Current Measurement for Inhomogeneous Charge Carrier Depth Profile
Creators: name: Krisztián, D.
name: Korsós, F.
name: Kovács, M.
name: Ujhelyi, F.
name: Tüttö, P.
Publisher: name: WIP
Year: 2022
Subjects: Silicon Materials and Cells
Feedstock, Crystallisation, Wafering, Defect Engineering

description: 8th World Conference on Photovoltaic Energy Conversion; 145-148
description: We developed a simple one-dimensional model of the eddy-current measurement for samples with inhomogeneous carrier depth profile. The model is well suited for the evaluation of transients recorded from ingots or thick slices of silicon using radio frequency (RF) eddy-current based photoconductance decay (PCD) technique [1]. The three-dimensional distribution of the RF magnetic field, the induced eddy-currents and depth sensitivity of the eddy-current sensor was thoroughly analyzed using a finite element (FE) simulation. The experimental results confirmed the reliability of the 3D FE simulations to model the eddy-current measurement. Despite the threedimensional nature of the problem, we found that in the case of laterally homogenous carrier profile, a simplified onedimensional model can calculate the eddy-current signal with sufficient accuracy. The few calibration parameters of the model can be easily determined using homogenous resistivity etalon samples of different thicknesses. Such rapid calculation of the expected eddy-current signal enables to apply the model even for real-time RF-PCD measurement. To verify the reliability and applicability of the applied model, we injected a controlled density of excess carriers using a large spot laser illumination at various flux levels. The basic parameters to compute the excess carrier depth profiles was determined using an iterative method. The agreement between the measured, the calculated (1-D model) and simulated (3-D) eddy-current signals confirm the reliability of our model.
Utilising a 1,8-naphthalimide probe for the ratiometric fluorescent visualisation of caspase-3
Creators: name: Wynne, Conor
name: B. P. Elmes, Robert
Publisher: name: University of Limerick
Year: 2024
Subjects: classificationCode: 34
subject: Chemical sciences
subject: FOS: Chemical sciences

description: The development of selective and sensitive probes for monitoring caspase-3 activity–a critical enzyme involved in apoptosis–remains an area of significant interest in biomedical research. Herein, we report the synthesis and characterisation of a novel ratiometric fluorescent probe, Ac-DEVD-PABC-Naph, designed to detect caspase-3 activity. The probe utilises a 1,8-naphthalimide fluorophore covalently linked to a peptide sequence via a self-immolative p-aminobenzyl alcohol (PABA) linker. Upon enzymatic cleavage by caspase-3, the probe undergoes spontaneous degradation, releasing the free naphthalimide fluorophore, resulting in a ratiometric change in fluorescence emission. Spectroscopic studies revealed a time-dependent ratiometric fluorescent response, demonstrating the probe’s ability to visualise caspase-3 activity with high sensitivity. Enzyme kinetics such as Km (Michaelis constant), kcat (turnover number), and LOD (Limit of Detection) were obtained, suggesting that the probe possesses comparable kinetic data to other probes in literature, but with the added benefits of ratiometric detection. Selectivity studies also demonstrated the probe’s specificity for caspase-3 over other endogenous species and enzymes. Ac-DEVD-PABC-Naph may be a promising tool for the quantitative detection and fluorescent visualisation of caspase-3 activity in biological systems, with potential applications in apoptosis research and drug development.
Variational formulation and efficient implementation for solving the tempered fractional problems
Creators: name: Deng, Weihua
name: Zhang, Zhijiang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: Because of the finiteness of the life span and boundedness of the physical space, the more reasonable or physical choice is the tempered power-law instead of pure power-law for the CTRW model in characterizing the waiting time and jump length of the motion of particles. This paper focuses on providing the variational formulation and efficient implementation for solving the corresponding deterministic/macroscopic models, including the space tempered fractional equation and time tempered fractional equation. The convergence, numerical stability, and a series of variational equalities are theoretically proved. And the theoretical results are confirmed by numerical experiments.
description: 26 pages, 2 figures
Stronger than ever: the effect of language contacton the expression of kinship in Omaheke Juǀ'hoan
Creators: name: Pratchett, Lee J.
Publisher: name: Zenodo
Year: 2022
Subjects: subject: Linguistics
subject: FOS: Languages and literature
subject: Anthropological linguistics
subject: Hunter-Gatherer Studies
subject: Grammatical gender
subject: Language contact
subject: Language change
subject: Kalahari

description: The Omaheke in Namibia has changed dramatically over the last 150 years, reshaped demographically, culturally, and linguistically by colonialism and the cattle economy. In the spirit of the conference theme Living Well Together, this paper describes a dynamic linguistic response by Omaheke Juǀ’hoan to their changing sociolinguistic landscape that speaks to the resiliency and centrality of hunter-gatherer communality. The Juǀ’hoan language has a grammatical gender system that expresses the dichotomy between kin and non-kin – or between “those who are frequently here and now with us, real, genuine people, as opposed to those faraway who we can only imagine” (Bird-David 2019: 190). One gender regroups consanguineal, social, and cultural kin and another gender regroups those whose markings and mannerisms diverge from the group, which includes all non-hunter-gatherers (Dickens 2005, Pratchett 2021). In communication, the distinction reveals itself through the subtle use of pronouns when referring to discourse referents. In Omaheke Juǀ’hoan speech communities, the gender system has undergone significant changes due to the influence of Khoekhoe – which is so pronounced that local Juǀ’hoan youth also adopt a Khoekhoe identity (Brown & Haihambo 2015). In this talk, I illustrate the stark yet subtle typological change to the gender system, as well as the general increase in its overall complexity. Most crucially, I demonstrate how the adaption by speakers of novel features effectively reinforces – and reaffirms – the expression and importance of Juǀ’hoan kinship. This talk therefore exemplifies community agency in the context of language change and how speakers actively navigate their changing sociolinguistic landscape.
Systematic review and individual-patient-data meta-analysis of non-invasive fibrosis markers for chronic hepatitis B in Africa.
Creators: name: Johannessen, Asgeir
name: Stockdale, Alexander J
name: Henrion, Marc YR
name: Okeke, Edith
name: Seydi, Moussa
name: Wandeler, Gilles
name: Sonderup, Mark
name: Spearman, C Wendy
name: Vinikoor, Michael
name: Sinkala, Edford
name: Desalegn, Hailemichael
name: Fall, Fatou
name: Riches, Nicholas
name: Davwar, Pantong
name: Duguru, Mary
name: Maponga, Tongai
name: Taljaard, Jantjie
name: Matthews, Philippa C
name: Andersson, Monique
name: Mboup, Souleyman
name: Sombie, Roger
name: Shimakawa, Yusuke
name: Lemoine, Maud
Publisher: name: The Francis Crick Institute
Year: 2023
Subjects: subject: Genetics & Genomics
subject: Infectious Disease
subject: Immunology
subject: FOS: Clinical medicine

description: In sub-Saharan Africa, simple biomarkers of liver fibrosis are needed to scale-up hepatitis B treatment. We conducted an individual participant data meta-analysis of 3,548 chronic hepatitis B patients living in eight sub-Saharan African countries to assess the World Health Organization-recommended aspartate aminotransferase-to-platelet ratio index and two other fibrosis biomarkers using a Bayesian bivariate model. Transient elastography was used as a reference test with liver stiffness measurement thresholds at 7.9 and 12.2kPa indicating significant fibrosis and cirrhosis, respectively. At the World Health Organization-recommended cirrhosis threshold (>2.0), aspartate aminotransferase-to-platelet ratio index had sensitivity (95% credible interval) of only 16.5% (12.5-20.5). We identified an optimised aspartate aminotransferase-to-platelet ratio index rule-in threshold (>0.65) for liver stiffness measurement >12.2kPa with sensitivity and specificity of 56.2% (50.5-62.2) and 90.0% (89.0-91.0), and an optimised rule-out threshold (<0.36) with sensitivity and specificity of 80.6% (76.1-85.1) and 64.3% (62.8-65.8). Here we show that the World Health Organization-recommended aspartate aminotransferase-to-platelet ratio index threshold is inappropriately high in sub-Saharan Africa; improved rule-in and rule-out thresholds can optimise treatment recommendations in this setting.
Bayesian inference and model comparison for metallic fatigue data
Creators: name: Babuska, Ivo
name: Sawlan, Zaid
name: Scavino, Marco
name: Szabó, Barna
name: Tempone, Raúl
Publisher: name: arXiv
Year: 2015
Subjects: subject: Computation (stat.CO)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences
subject: 62N05, 62N01, 62P30, 62F15

description: In this work, we present a statistical treatment of stress-life (S-N) data drawn from a collection of records of fatigue experiments that were performed on 75S-T6 aluminum alloys. Our main objective is to predict the fatigue life of materials by providing a systematic approach to model calibration, model selection and model ranking with reference to S-N data. To this purpose, we consider fatigue-limit models and random fatigue-limit models that are specially designed to allow the treatment of the run-outs (right-censored data). We first fit the models to the data by maximum likelihood methods and estimate the quantiles of the life distribution of the alloy specimen. To assess the robustness of the estimation of the quantile functions, we obtain bootstrap confidence bands by stratified resampling with respect to the cycle ratio. We then compare and rank the models by classical measures of fit based on information criteria. We also consider a Bayesian approach that provides, under the prior distribution of the model parameters selected by the user, their simulation-based posterior distributions. We implement and apply Bayesian model comparison methods, such as Bayes factor ranking and predictive information criteria based on cross-validation techniques under various a priori scenarios.
High – Mobility Flourine Doped Indium Oxide Films For high Efficiency Silicon Solar Cells
Creators: name: Tom, T.
name: Tutsch, L.
name: Hermle, M.
name: Asensi, J.M.
name: López-Vidrier, J.
name: Bertomeu, J.
name: Bivour, M.
Publisher: name: WIP
Year: 2022
Subjects: Silicon Materials and Cells
Low Temperature Route for Si Cells

description: 8th World Conference on Photovoltaic Energy Conversion; 128-132
description: Transparent conducting oxides with high infrared transparency and high mobility are crucial for further enhancing the efficiency of crystalline silicon solar cells. Numerous hydrogen-doped or cation-doped indium oxide films have been intensively studied, while anion doping in indium oxide films is still under development. Here we investigate the fluorine doped indium oxide films deposited by industrial DC sputtering by varying the oxygen and hydrogen percentages. To gain a holistic understanding on the role of hydrogen and oxygen we performed a very wide parameter variation of these gases. The films were processed at room temperature and were annealed at 220 °C on a hot plate in ambient conditions. Electrical, optical, and structural properties of the films were investigated and highest mobility of 87 cm2/Vs at a carrier density of 2.5×1020 cm−3 was achieved when depositing under 2.3% O2 and 2.0% H2 flow. The strong correlation between the defined figure of merit and the electron mobility of the films is observed. The solid phase crystallization of the annealed films was identified by X-ray diffraction. The highest mobility films achieved an efficiency of 21.8% in silicon heterojunction solar cells..
Salience and structural priming of verb argument structure
Creators: name: Cassarà, Alessia
name: Stein, Achim
Publisher: name: Zenodo
Year: 2023
Subjects: syntax, reflexives, language change, language acquisition, psycholinguistics, structural priming

description: This contribution addresses the question of saliency at the syntax-semantics interface, with a focus on verb argument structure, and, more specifically unaccusative (UA) structures. UA is a phenomenon that can be described in a simplified way as an atypical mapping of semantic roles onto syntactic functions: the subject of an intransitive UA structure has non-agent like properties, as in Arriva la ragazza and Il bicchiere si rompe as opposed to so-called unergative intransitives like La ragazza canta or passives like Il bicchiere è stato rotto. Our general question is whether the syntactic or semantic structure of a verbal construction has a stronger effect on processing (in psycholinguistics), and, consequently, on language acquisition and change.
The Effect of Supply Chain Management Challenges on the Performances of Humanitarian Aid Organization: the Case Study of Addis Ababa City Administration.
Creators: name: Tesfay, Mebrahtom
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: Humanitarian supply chain is the network created through the flow of services, supplies, information and finances between donors, beneficiaries, suppliers and different units of humanitarian organizations, in order to provide physical aid to beneficiaries. Both the number of natural and man-made challenges and the people affected by these challenges have increased substantially during the recent decades. There exists a limited body of empirical research within the field of humanitarian supply chain and this study is presented to address this limitation by utilizing an operations research technique to examine, how the SC performance can be improved. The research presented is builds on "The effect of supply chain management challenges on the performances of humanitarian aid organization". The study took a descriptive and causal cross-sectional survey research design to describe population characteristics and examine the effect of SCM challenges on the performances of humanitarian aid organization. The study also equipped spearman's correlation to determining the degree of correlation between the independent and dependent variables. For the purpose of testing the developed hypothesis, simple and multiple linear regressions analysis was used. The study was targeted to one hundred twenty three (123) humanitarian aid organizations at Addis Ababa City Administration. Data were collected through primary and secondary sources that were able to directly answer and fulfill the objective of the study, and cronbach's alpha was used to measure the internal consistency of items in the scale. The findings show that each dimension of supply chain management challenges has a negative effect on responsiveness, collaboration, flexibility and cost performances. Finally this study recommends that, it is advisable to closely working and collaboration with different partners and stakeholders is extremely essential to minimize the SCM challenges, and ensure service quality and sustainability. Therefore, this study is expected to fill the empirical gap in literature on effects of supply chain management challenges on the humanitarian aid organization, which need to be bridged to ensure that humanitarian supply chains are improved and managed on the basis of informed evidence. Keywords: Humanitarian supply chain management, Performances measurement
Low Resistance with the High Transparency of Al-Doped ZnO TCO Thin-Films from ALD Procedure for c-Si-Based Passivated Contact Solar Cell Applications
Creators: name: Dsouza, N.
name: Singh, A.K.
name: Maurya, R.
name: Madaka, R.
name: Bandaru, N.
name: Kanakala, R.
name: Uddin, M.S.
name: Rath, J.K.
Publisher: name: WIP
Year: 2022
Subjects: Silicon Materials and Cells
Low Temperature Route for Si Cells

description: 8th World Conference on Photovoltaic Energy Conversion; 133-137
description: The study aims to develop a suitable TCO via different modes of the ALD process for c-Si based passivating contact solar cells (PCS) and we have proposed a new type of deposition scheme. This TCO deposition, along with other layers (passivation and electron/hole transport layers) can be deposited in a single ALD run, which helps to fabricate a complete PCS device without exposing the device outside of the vacuum chamber. ZnO:Al (AZO) films on the glass/c-Si substrates from thermal (TH) ALD and plasma enhanced (PE) ALD processes were deposited at different temperatures (100-250 °C), and the growth per cycle (GPC) of these layers were calculated from spectroscopic ellipsometry and X-ray reflectometry. The GPC of films deposited by PE ALD at 200 C is measured to be 1.45±0.1 Å for Al2O3 and 1.78±0.2 Å for ZnO films; similarly for the TH ALD deposited films, a GPC of 1.00±0.1 Å and 1.20±0.1 Å, respectively. The (1: n) (Al2O3: ZnO) pulse ratio was used for the film deposition and optimized GPC of Al2O3 and ZnO was used to deposit about 200 nm AZO films for different Al concentrations (0.5 to 5 at %). The (1:21) (Al - 2%) ratio provides an optimum film property for the PE ALD process, and the same ratio was tried with TH ALD, where the film properties were significantly enhanced. Further, a new mode of deposition named “DTH” (DEZ-TMA-H2O) was explored, and an additional decrease in the film resistivity was observed. We have altered the sequence step of precursor dose and co-reactant in this mode. Compared to the conventional TH and PE ALD technique, the DTH mode of deposition proves to be the best fit for the TCO application here. A 200nm AZO film deposited by DTH ALD has a minimum resistivity in the range of 1.91×10-3 Ω-cm and high transparency of more than 85% in the visible region. DTH approach in the ALD proves to be an innovative deposition technique for developing films with enhanced quality, indicating the potential use in PCS device applications.
title: Albert R. Sebes, 11. September 1887-12. November 1959
title: Gedenkfeier anlässlich der Bestattung, Montag, den 16. November 1959 im Krematorium in Zürich
titleType: Subtitle
Creators: name: (:Unkn) Unknown
Publisher: name: Zentralbibliothek Zürich
Year: 1959
Subjects: subject: 355 Militärwissenschaft
subject: 920 Biografien, Genealogie, Insignien
subject: Nachruf

description: Enthält: Eingangsworte von Pfarrer Karl Zimmermann; Abdankungsansprache von Pfarrer Karl Zimmermann; Ansprache von Obert Peter Naegeli
Double exponential stability of quasi-periodic motion in Hamiltonian systems
Creators: name: Bounemoura, Abed
name: Fayad, Bassam
name: Niederman, Laurent
Publisher: name: arXiv
Year: 2016
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: We prove that generically, both in a topological and measure-theoretical sense, an invariant Lagrangian Diophantine torus of a Hamiltonian system is doubly exponentially stable in the sense that nearby solutions remain close to the torus for an interval of time which is doubly exponentially large with respect to the inverse of the distance to the torus. We also prove that for an arbitrary small perturbation of a generic integrable Hamiltonian system, there is a set of almost full positive Lebesgue measure of KAM tori which are doubly exponentially stable. Our results hold true for real-analytic but more generally for Gevrey smooth systems.
Impact of a Renewed SiNx:H Passivation Layer and/or a Renewed Firing Step on LeTID and Regeneration
Creators: name: Schmid, A.
name: Zuschlag, A.
name: Hahn, G.
Publisher: name: WIP
Year: 2022
Subjects: Silicon Materials and Cells
Feedstock, Crystallisation, Wafering, Defect Engineering

description: 8th World Conference on Photovoltaic Energy Conversion; 138-141
description: Light and elevated temperature induced degradation (LeTID) significantly affects the performance of crystalline Si solar cells. The underlying mechanisms of LeTID and following regeneration are still largely unknown, but the phenomenon seems to depend on the H content in the Si bulk. Therefore, in this work, we investigate the influence of a renewed H-rich SiNx:H passivation layer (with a subsequent firing step) as well as solely re-firing of the sample after certain points in time during LeTID and regeneration. By re-depositing a SiNx:H layer in combination with a new firing step, we show that the LeTID and regeneration cycle is run through again without any significant change in kinetics or strength being detected. Assuming that H enters the Si bulk by firing a H-rich passivation layer, a renewed passivation would represent a new reservoir of H and thus could lead to renewed degradation. Furthermore, comparable kinetics show up before and after renewed firing of the already fired SiNx:H layer, but the extent of degradation slightly decreases with each new firing step, which could be due to a depletion of the H-source.
Heterojunction Germanium Solar Cells with a Record High Efficiency of 8.6%
Creators: name: Konagai, M.
name: Saito, K.
name: Nakada, K.
name: Ichikawa, Y.
name: Suyama, N.
name: Ishikawa, R.
Publisher: name: WIP
Year: 2022
Subjects: Silicon Materials and Cells
Low Temperature Route for Si Cells

description: 8th World Conference on Photovoltaic Energy Conversion; 119-122
description: Ge solar cells were prepared using three types of p-Ge wafers with carrier concentrations ranging from 1.0 × 1016 / cm3 (0.28 Ωcm) to 3.0 × 1018 / cm3 (0.0063 Ωcm). The surface treatment of Ge wafers and the passivation of the n-a-Si:H (n-µc-Si:H) / p-Ge interface have a great impact on the conversion efficiency. As for the substrate pretreatment, the HF treatment and the method of adding the HCl treatment to the HF treatment were also attempted. At the n-a-Si:H (n-µc-Si:H) / p-Ge emitter interface, i-a-Si:H with a thickness of 4 to 14 nm was inserted as a passivation layer. A BSF structure of p-Ge /i-a-Si:H /p-µc-Si was deposited on the back surface side. Voc was greatly improved by lowering the resistivity of the substrate. In a cell in which an i-a-Si:H layer with a thickness of 14 nm was introduced at the emitter interface on a 0.016 Ω cm substrate, a conversion efficiency 8.6 % (Voc = 291 mV, Jsc = 45.0 mA/cm2, FF = 0.656, AM1.5, 100mW/cm2, 25 ° C) was obtained. The interface was observed with a transmission electron microscope (TEM). As a result, It was found that the island-shaped heteroepitaxial growth suppressed the misfit dislocations that would otherwise occur due to lattice mismatch, and exhibited good interfacial characteristics.