cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Probing Non Standard Neutrino Physics at T2KK and Neutrino Factory
Creators: name: Uchinami, Shoichi
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the possibility of constraining or discovering the non-standard neutrino physics beyond the standard model with future long baseline neutrino oscillation experiments. Among very many possible experimental set up we discuss neutrino factory and T2KK, in which two detector setting may be useful to achieve the goal. In particular, neutrino factory with two detectors at baselines of 3000 km and 7000 km have a great sensitivity to non-standard interaction (NSI) and solve the $θ_{13}$-NSI confusion problem.
description: To appear in the proceedings of 10th International Workshop on Neutrino Factories, Super beams and Beta beams (Nufact08), June 30 - July 5 2008, Valencia, Spain
Momentum dependence of quasiparticle spectrum and Bogoliubov angle in cuprate superconductors
Creators: name: Wang, Weifang
name: Wang, Zhi
name: Zhang, Jingge
name: Feng, Shiping
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The momentum dependence of the low energy quasiparticle spectrum and the related Bogoliubov angle in cuprate superconductors are studied within the kinetic energy driven superconducting mechanism. By calculation of the ratio of the low energy quasiparticle spectra at positive and negative energies, it is shown that the Bogoliubov angle increase monotonically across the Fermi crossing point. The results also show that the superconducting coherence of the low energy quasiparticle peak is well described by a simple d-wave Bardeen-Cooper-Schrieffer formalism, although the pairing mechanism is driven by the kinetic energy by exchanging spin excitations.
description: 6 pages, 5 figures, added figure and discussions, accepted for publication in Physics Letters A
Self-Filtered Narrowband Perovskite Photodetectors with Ultrafast and Tuned Spectral Response
Creators: name: Tang, S.
name: Wei, H.
name: Fang, Y.
name: Zhang, F.
name: Li, L.
name: Deng, Y.
name: Huang, J.
name: Bao, C.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Combining bandpass filters with broadband photodetectors is the most common way to detect light within a specific spectral range in many applications that need to detect only the light within desired spectral range. Here, a method is reported to realize narrowband spectral response of perovskite photodetectors by applying hybrid perovskites layers with the same or a slightly larger bandgap as filters, which are integrated into perovskite photodetectors. The narrowband photodetectors have a full width at half maximum of 28 nm due to the sharp absorption edges of perovskite materials, and the light rejection ratio is above 1000. By tuning the bandgaps of perovskite filters and the associated perovskite layers in the detectors, the response bands are continuously tuned in the whole visible light region to satisfy different applications. Superior to the thick single crystal narrowband perovskite photodetectors, the naorrowband peroskite detectors with this design have a very high response speed only limited by the resistance capacitance constant.
Field theories with homogenous momentum space
Creators: name: Girelli, Florian
name: Livine, Etera R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the construction of a scalar field theory with momentum space given by a coset. By introducing a generalized Fourier transform, we show how the dual scalar field theory actually lives in Snyder's space-time. As a side-product we identify a star product realization of Snyder's non-commutative space, but also the deformation of the Poincare symmetries necessary to have these symmetries realized in Snyder's space-time. A key feature of the construction is that the star product is non-associative.
description: 9 pages, To appear in the Proceedings of the XXV Max Born Symposium, "The Planck Scale", Wroclaw, Poland, July 2009
Matching Charge Extraction Contact for Wide-Bandgap Perovskite Solar Cells
Creators: name: Chen, B.
name: Shao, Y.
name: Huang, J.
name: Zheng, X.
name: Deng, Y.
name: Fang, Y.
name: Bai, Y.
name: Zhao, F.
name: Lin, Y.
name: Wang, C.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Efficient wide‐bandgap (WBG) perovskite solar cells are needed to boost the efficiency of silicon solar cells to beyond Schottky–Queisser limit, but they suffer from a larger open circuit voltage (VOC) deficit than narrower bandgap ones. Here, it is shown that one major limitation of VOC in WBG perovskite solar cells comes from the nonmatched energy levels of charge transport layers. Indene‐C60 bisadduct (ICBA) with higher‐lying lowest‐unoccupied‐molecular‐orbital is needed for WBG perovskite solar cells, while its energy‐disorder needs to be minimized before a larger VOC can be observed. A simple method is applied to reduce the energy disorder by isolating isomer ICBA‐tran3 from the as‐synthesized ICBA‐mixture. WBG perovskite solar cells with ICBA‐tran3 show enhanced VOC by 60 mV, reduced VOC deficit of 0.5 V, and then a record stabilized power conversion efficiency of 18.5%. This work points out the importance of matching the charge transport layers in perovskite solar cells when the perovskites have a different composition and energy levels.
On the Implementation of Fixed-point Exponential Function for Machine Learning and Signal Processing Accelerators
Creators: name: Chandra, Mahesh
Publisher: name: arXiv
Year: 2021
Subjects: subject: Hardware Architecture (cs.AR)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The natural exponential function is widely used in modeling many engineering and scientific systems. It is also an integral part of many neural network activation function such as sigmoid, tanh, ELU, RBF etc. Dedicated hardware accelerator and processors are designed for faster execution of such applications. Such accelerators can immensely benefit from an optimal implementation of exponential function. This can be achieved for most applications with the knowledge that the exponential function for a negative domain is more widely used than the positive domain. This paper presents an optimized implementation of exponential function for variable precision fixed point negative input. The implementation presented here significantly reduces the number of multipliers and adders. This is further optimized using mixed world-length implementation for the series expansion. The reduction in area and power consumption is more than 30% and 50% respectively over previous equivalent method.
description: -
Faraday rotation of the supernova remnant G296.5+10.0: Evidence for a Magnetized Progenitor Wind
Creators: name: Harvey-Smith, L.
name: Gaensler, B. M.
name: Kothes, R.
name: Townsend, R.
name: Heald, G. H.
name: Ng, C. -Y.
name: Green, A. J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present spectropolarimetric radio images of the supernova remnant (SNR) G296.5+10.0 at frequencies near 1.4 GHz, observed with the Australia Telescope Compact Array. By applying rotation measure (RM) synthesis to the data, a pixel-by-pixel map of Faraday rotation has been produced for the entire remnant. We find G296.5+10.0 to have a highly ordered RM structure, with mainly positive RMs (mean RM of +28 rad/m**2) on the eastern side and negative RMs (mean RM of -14 rad/m**2) on the western side, indicating a magnetic field which is directed away from us on one side and toward us on the other. We consider several possible mechanisms for creating the observed RM pattern. Neither Faraday rotation in foreground interstellar gas nor in a homogeneous ambient medium swept up by the SNR shell can easily explain the magnitude and sign of the observed RM pattern. Instead, we propose that the observed RMs are the imprint of an azimuthal magnetic field in the stellar wind of the progenitor star. Specifically, we calculate that a swept-up magnetized wind from a red supergiant can produce RMs of the observed magnitude, while the azimuthal pattern of the magnetic field at large distances from the star naturally produces the anti-symmetric RM pattern observed. Expansion into such a wind can possibly also account for the striking bilateral symmetry of the SNR's radio and X-ray morphologies.
description: Accepted for publication in The Astrophysical Journal
Understanding the physical properties of hybrid perovskites for photovoltaic applications
Creators: name: Shao, Y.
name: Huang, J.
name: Yan, Y.
name: Yuan, Y.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: New photovoltaic materials have been searched for in the past decades for clean and renewable solar energy conversion with an objective of reducing the levelized cost of electricity (that is, the unit price of electricity over the course of the device lifetime). An emerging family of semiconductor materials — organic–inorganic halide perovskites (OIHPs) — are the focus of the photovoltaic research community owing to their use of low cost, nature-abundant raw materials, low-temperature and scalable solution fabrication processes, and, in particular, the very high power conversion efficiencies that have been achieved within the short time of their development. In this Review, we summarize and critically assess the most recent advances in understanding the physical properties of both 3D and low-dimensional OIHPs that favour a small open-circuit voltage deficit and high power conversion efficiency. Several prominent topics in this field on the unique properties of OIHPs are surveyed, including defect physics, ferroelectricity, exciton dissociation processes, carrier recombination lifetime and photon recycling. The impact of ion migration on solar cell efficiency and stability are also critically analysed. Finally, we discuss the remaining challenges in the commercialization of OIHP photovoltaics.
Quantification of re-Absorption and re-emission processes to determine photon recycling efficiency in perovskite single crystals
Creators: name: Dong, Q.
name: Wei, H.
name: Fang, Y.
name: Huang, J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Photon recycling, that is, iterative self-absorption and re-emission by the photoactive layer itself, has been speculated to contribute to the high open-circuit voltage in several types of high efficiency solar cells. For organic–inorganic halide perovskites that have yielded highly efficient photovoltaic devices, however, it remains unclear whether the photon recycling effect is significant enough to improve solar cell efficiency. Here we quantitatively evaluate the re-absorption and re-emission processes to determine photon recycling efficiency in hybrid perovskite with its single crystals by measuring the ratio of the re-emitted photons to the initially excited photons, which is realized by modulating their polarization to differentiate them. The photon recycling efficiencies are revealed to be less than 0.5% in CH3NH3PbI3 and CH3NH3PbBr3 single crystals under excitation intensity close to one sun, highlighting the intrinsically long carrier recombination lifetime instead of the photon-recycling-induced photon propagation as the origin of their long carrier diffusion length.
Searching for a link between the magnetic nature and other observed properties of Herbig Ae/Be stars
Creators: name: Hubrig, S.
name: Grady, C.
name: Schoeller, M.
name: Schuetz, 0.
name: Stelzer, B.
name: Pogodin, M.
name: Cure, M.
name: Yudin, R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the results of a new magnetic field survey of Herbig Ae/Be and A debris disk stars. They are used to determine whether magnetic field properties in these stars are correlated with the mass-accretion rate, disk inclinations, companion(s), Silicates, PAHs, or show a more general correlation with age and X-ray emission as expected for the decay of a remnant dynamo.
description: 2 pages, 1 figure, to appear in Proceedings of IAU Symposium 259 "Cosmic Magnetic Fields: from Planets, to Stars and Galaxies", Tenerife, Spain, November 3-7, 2008
Additional file 4 of Hsa_circ_0004296 inhibits metastasis of prostate cancer by interacting with EIF4A3 to prevent nuclear export of ETS1 mRNA
Creators: name: Mao, Shiyu
name: Zhang, Wentao
name: Yang, Fuhan
name: Guo, Yadong
name: Wang, Hong
name: Wu, Yuan
name: Wang, Ruiliang
name: Maskey, Niraj
name: Zheng, Zongtai
name: Li, Cheng
name: Ma, Wenchao
name: Zhang, Junfeng
name: Yan, Yang
name: Yao, Xudong
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 4: Figure S1. A. The expression abundance of six screened circRNA candidates. B. qRT-PCR showed the expression of circ_0001708 (circRNA_19382) in PCa cell lines. C. qRT-PCR showed the expression of circ_0002842 (circRNA_22335) in PCa cell lines. D. qRT-PCR showed the expression of circ_0004390 (circRNA_00938) in PCa cell lines. E. Northern blotting assay confirmed the integrity of the linear circ_0004296 RNA sequence carried on the plasmid.
Stability and chaotic behavior of Bose-Einstein condensates in optical lattices with two- and three-body interactions
Creators: name: Chen, Yan
name: Zhang, Ke-Zhi
name: Chen, Yong
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: The stability and chaotic behaviors of Bose-Einstein condensates with two- and three-atom interactions in optical lattices are discussed with analytical and numerical methods. It is found that the steady-state relative population appears tuning-fork bifurcation when the system parameters are changed to certain critical values. In particular, the existence of three-body interaction not only transforms the bifurcation point of the system but also affects greatly on the macroscopic quantum self-trapping behaviors of the system associated with the critically stable steady-state solution. In addition, we also investigated the influence of the initial conditions, three-body interaction and the energy bias on the macroscopic quantum self-trapping. Finally, by applying the periodic modulation on the energy bias, we find that the relative population oscillation exhibits a process from order to chaos, via a series of period-doubling bifurcations.
description: 11 pages, 6 figures
Additional file 1 of LINC01197 inhibits influenza A virus replication by serving as a PABPC1 decoy
Creators: name: Wang, Yihe
name: Shi, Ning
name: Zhang, Hansi
name: Luo, Jinna
name: Yan, Hongjian
name: Hou, Huiyan
name: Guan, Zhenhong
name: Zhao, Lili
name: Duan, Ming
Publisher: name: figshare
Year: 2024
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: Additional file 1. Primers were used for quantitative real-time PCR and other assays in this study.
Meniscus-assisted solution printing of large-grained perovskite films for high-efficiency solar cells
Creators: name: Szymanski, P.
name: He, Y.
name: Ei-Sayed, M.A.
name: Lin, Z.
name: Li, B.
name: Chen, Y.
name: ONeil, D.
name: He, M.
name: Huang, J.
name: Cui, X.
name: Jiang, B.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Control over morphology and crystallinity of metal halide perovskite films is of key importance to enable high-performance optoelectronics. However, this remains particularly challenging for solution-printed devices due to the complex crystallization kinetics of semiconductor materials within dynamic flow of inks. Here we report a simple yet effective meniscus-assisted solution printing (MASP) strategy to yield large-grained dense perovskite film with good crystallization and preferred orientation. Intriguingly, the outward convective flow triggered by fast solvent evaporation at the edge of the meniscus ink imparts the transport of perovskite solutes, thus facilitating the growth of micrometre-scale perovskite grains. The growth kinetics of perovskite crystals is scrutinized by in situ optical microscopy tracking to understand the crystallization mechanism. The perovskite films produced by MASP exhibit excellent optoelectronic properties with efficiencies approaching 20% in planar perovskite solar cells. This robust MASP strategy may in principle be easily extended to craft other solution-printed perovskite-based optoelectronics.
Additional file 1 of Characteristics and outcomes of emergency department patients across health care systems: an international multicenter cohort study
Creators: name: de Groot, Bas
name: Meijs, Nicoline T. C.
name: Moscova, Michelle
name: Raven, Wouter
name: Gaakeer, Menno I.
name: Thijssen, Wendy A. M. H.
name: Lameijer, Heleen
name: Shetty, Amith
name: Lassen, Annmarie T.
Publisher: name: figshare
Year: 2024
Subjects: Medicine
Biotechnology
Cancer
Mental Health

description: Supplementary file 1.
Dopant compensation in alloyed CH3NH3PbBr3-xClx perovskite single crystals for gamma-ray spectroscopy
Creators: name: Savenije, T.J.
name: Huang, J.
name: Guo, D.
name: Wei, H.
name: Desantis, D.
name: Cao, L.
name: Wei, W.
name: Deng, Y.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Organic–inorganic halide perovskites (OIHPs) bring an unprecedented opportunity for radiation detection with their defect-tolerance nature, large mobility–lifetime product, and simple crystal growth from solution. Here we report a dopant compensation in alloyed OIHP single crystals to overcome limitations of device noise and charge collection, enabling γ-ray spectrum collection at room temperature. CH3NH3PbBr3 and CH3NH3PbCl3 are found to be p-type and n-type doped, respectively, whereas dopant-compensated CH3NH3PbBr2.94Cl0.06 alloy has over tenfold improved bulk resistivity of 3.6 × 109 Ω cm. Alloying also increases the hole mobility to 560 cm2 V−1 s−1, yielding a high mobility–lifetime product of 1.8 × 10−2 cm2 V−1. The use of a guard ring electrode in the detector reduces the crystal surface leakage current and device dark current. A distinguishable 137Cs energy spectrum with comparable or better resolution than standard scintillator detectors is collected under a small electric field of 1.8 V mm−1 at room temperature.
Electron bunch injection at an angle into a laser wakefield
Creators: name: Luttikhof, M. J. H.
name: Khachatryan, A. G.
name: van Goor, F. A.
name: Boller, K. -J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: External injection of electron bunches longer than the plasma wavelength in a laser wakefield accelerator can lead to the generation of femtosecond ultrarelativistic bunches with a couple of percent energy spread. Extensive study has been done on external electron bunch (e.g. one generated by a photo-cathode rf linac) injection in a laser wakefield for different configurations. In this paper we investigate a new way of external injection where the electron bunch is injected at a small angle into the wakefield. This way one can avoid the ponderomotive scattering as well as the vacuum-plasma transition region, which tend to destroy the injected bunch. In our simulations, the effect of the laser pulse dynamics is also taken into account. It is shown that injection at an angle can provide compressed and accelerated electron bunches with less than 2% energy spread. Another advantage of this scheme is that it has less stringent requirements in terms of the size of the injected bunch and there is the potential to trap more charge.
Composition Engineering in Doctor-Blading of Perovskite Solar Cells
Creators: name: Fang, Y.
name: Dong, Q.
name: Huang, J.
name: Zheng, X.
name: Wei, H.
name: Tang, S.
name: Bai, Y.
name: Deng, Y.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Organic–inorganic halide perovskite (OIHP) solar cells with efficiency over 18% power conversion efficiency (PCE) have been widely achieved with lab scale spin‐coating method which is however not scalable for the fabrication of large area solar panels. The PCEs of OIHP solar cells made by scalable deposition methods, such as doctor‐blading or slot‐die coating, have been lagging far behind than spin‐coated devices. In this study the authors report composition engineering in doctor‐bladed OIHP solar cells with p–i–n planar heterojunction structure to enhance their efficiency. Phase purer OIHP thin films are obtained by incorporating a small amount of cesium (Cs+) and bromine (Br−) ions into perovskite precursor solution, which also reduces the required film formation temperature. Pinhole free OIHP thin films with micrometer‐sized grains have been obtained assisted by a secondary grain growth with added methylammonium chloride into the precursor solution. The OIHP solar cells using these bladed thin films achieved PCEs over 19.0%, with the best stabilized PCE reaching 19.3%. This represents a significant step toward scalable manufacture of OIHP solar cells.
Ultrahigh sensitivity of methylammonium lead tribromide perovskite single crystals to environmental gases
Creators: name: Fang, H.-H.
name: Even, J.
name: Blake, G.R.
name: Wei, H.
name: Adjokatse, S.
name: Huang, J.
name: Yang, J.
name: Loi, M.A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: One of the limiting factors to high device performance in photovoltaics is the presence of surface traps. Hence, the understanding and control of carrier recombination at the surface of organic-inorganic hybrid perovskite is critical for the design and optimization of devices with this material as the active layer. We demonstrate that the surface recombination rate (or surface trap state density) in methylammonium lead tribromide (MAPbBr3) single crystals can be fully and reversibly controlled by the physisorption of oxygen and water molecules, leading to a modulation of the photoluminescence intensity by over two orders of magnitude. We report an unusually low surface recombination velocity of 4 cm/s (corresponding to a surface trap state density of 108 cm−2) in this material, which is the lowest value ever reported for hybrid perovskites. In addition, a consistent modulation of the transport properties in single crystal devices is evidenced. Our findings highlight the importance of environmental conditions on the investigation and fabrication of high-quality, perovskite-based devices and offer a new potential application of these materials to detect oxygen and water vapor.
Laminar (vascular) physiology
Creators: name: Huber, Laurentius
Publisher: name: F1000 Research Limited
Year: 2019

description: Recent methodological advancements of fMRI allow researchers to approach the mesoscopic regime of cortical layers and columns. This revolutionizes the ability to tackle cortical information processing within brain systems. In order to interpret the layer-dependent fMRI signal, however, the underlying laminar physiology must be understood.
In this educational lecture, I will give an overview of the physiology of blood vessels within GM and discuss how this physiology affects the interpretation of layer-fMRI signal changes. I will give an overview of the corresponding fMRI analysis challenges. And finally, I will discuss how intra-cortical blood vessels can differently affect fMRI contrasts of BOLD and non-BOLD sequences.
Additional file 1 of Correction: Long non-coding RNA SLC25A21-AS1 inhibits the development of epithelial ovarian cancer by specifically inducing PTBP3 degradation
Creators: name: Li, Sihui
name: Shen, Shizhen
name: Ge, Wanzhong
name: Cen, Yixuan
name: Zhang, Songfa
name: Cheng, Xiaodong
name: Wang, Xinyu
name: Xie, Xing
name: Lu, Weiguo
Publisher: name: figshare
Year: 2024
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Molecular Biology
subject: Pharmacology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: Supplementary Material 1
Resource-Optimized Grouping Shadow for Efficient Energy Estimation
Creators: name: Li, Min
name: Lin, Mao
name: Beach, Matthew J. S.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The accurate and efficient energy estimation of quantum Hamiltonians consisting of Pauli observables is an essential task in modern quantum computing. We introduce a Resource-Optimized Grouping Shadow (ROGS) algorithm, which optimally allocates measurement resources by minimizing the estimation error bound through a novel overlapped grouping strategy and convex optimization. Our numerical experiments demonstrate that ROGS requires significantly fewer unique quantum circuits for accurate estimation accuracy compared to existing methods given a fixed measurement budget, addressing a major cost factor for compiling and executing circuits on quantum computers.
description: 22 pages, 5 figures
Enhancing stability and efficiency of perovskite solar cells with crosslinkable silane-functionalized and doped fullerene
Creators: name: Wang, D.
name: Wei, W.
name: Bai, Y.
name: Wang, Q.
name: Shen, L.
name: Shao, Y.
name: Huang, J.
name: Deng, Y.
name: Dong, Q.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: The instability of hybrid perovskite materials due to water and moisture arises as one major challenge to be addressed before any practical application of the demonstrated high efficiency perovskite solar cells. Here we report a facile strategy that can simultaneously enhance the stability and efficiency of p–i–n planar heterojunction-structure perovskite devices. Crosslinkable silane molecules with hydrophobic functional groups are bonded onto fullerene to make the fullerene layer highly water-resistant. Methylammonium iodide is introduced in the fullerene layer for n-doping via anion-induced electron transfer, resulting in dramatically increased conductivity over 100-fold. With crosslinkable silane-functionalized and doped fullerene electron transport layer, the perovskite devices deliver an efficiency of 19.5% with a high fill factor of 80.6%. A crosslinked silane-modified fullerene layer also enhances the water and moisture stability of the non-sealed perovskite devices by retaining nearly 90% of their original efficiencies after 30 days’ exposure in an ambient environment.
Attachment behaviors in young children experiencing two primary caregivers
Creators: name: Vinay, Marie-Emmanuelle
Publisher: name: University of British Columbia
Year: 2011

description: Attachment behaviors in young children experiencing two primary caregivers were studied in group homes organized for single mothers. The nine subjects ranged in age from five to 27 months. They were observed separately with their mothers and with the adult in charge of their group home during the day. Only small qualitative differences in the adult-child interaction were observed. Little fear of strangers and separation anxiety were seen. The theoretical implications of results for the concept of attachment were discussed.
Improving the sensitivity of a near-infrared nanocomposite photodetector by enhancing trap induced hole injection
Creators: name: Shen, L.
name: Fang, Y.
name: Xiao, Z.
name: Dong, Q.
name: Huang, J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: We report the enhancement of the photoconductive gain of nanocomposite near-infrared photodetectors by a zinc oxide nanoparticles (ZnO NPs) rich surface at the nanocomposite/cathode interface. An argon plasma etching process was used to remove polymer at the surface of nanocomposite films, which resulted in a ZnO NPs rich surface. The other way is to spin-coat a thin layer of ZnO NPs onto the nanocomposite layer. The ZnO NPs rich surface, which acts as electron traps to induce secondary hole injection under reverse bias, increased hole injection, and thus the external quantum efficiency by 2–3 times. The darkcurrent declined one order of magnitude simultaneously as a result of etching the top nanocomposite layer. The specific detectivity at 800 nm was increased by 7.4 times to 1.11 × 1010 Jones due to the simultaneously suppressed noise and enhanced gain.
Surface analytical investigation on organometal triiodide perovskite
Creators: name: Gao, Y.
name: Xiao, Z.
name: Wang, C.
name: Liu, X.
name: Shao, Y.
name: Bi, C.
name: Wang, C.
name: Huang, J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: In a little over a year, there has been an unexpected breakthrough and rapid evolution of highly efficient solid-state hybrid solar cells based on organometal trihalide perovskite materials. This technology has the potential to produce solar cells with the very highest efficiencies while retaining the very lowest cost. The authors have measured the electronic density of states of CH3NH3PbI3 using ultraviolet photoemission spectroscopy (UPS), inverse photoemission spectroscopy (IPES), and x-ray photoemission spectroscopy (XPS). The valence band maximum and conduction band minimum positions are obtained from the UPS and IPES spectra, respectively, by linear extrapolation of the leading edges. The authors investigate the Au/perovskite and C60/perovskite interfaces by UPS and XPS. An interface dipole of 0.1 eV is observed at Au/perovskite interface. The energy levels of perovskite shift upward by ca.0.4 eV with Au coverage of 64 Å upon it, resulting in band bending, hence a built-in field in perovskite that encourages hole transport to the interface. The XPS results show a strong initial shift of core levels to lower binding energy in the perovskite, which indicates that electrons transfer from the perovskite film to fullerene molecules. Further deposition of fullerene forms C60 solid, accompanied by the reduction of the electron transfer. The strongest electron transfer happened at 1/4 monolayer of fullerene.
Electronic structure evolution of fullerene on CH3NH3PbI3
Creators: name: Liu, X.
name: Gao, Y.
name: Xiao, Z.
name: Wang, C.
name: Huang, J.
name: Wang, C.
name: Kauppi, J.
name: Shao, Y.
name: Bi, C.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: The thickness dependence of fullerene on CH3NH3PbI3 perovskite film surface has been investigated by using ultraviolet photoemission spectroscopy (UPS), X-ray photoemission spectroscopy (XPS), and inverse photoemission spectroscopy (IPES). The lowest unoccupied molecular orbital and highest occupied molecular orbital (HOMO) can be observed directly with IPES and UPS. It is observed that the HOMO level in fullerene shifts to lower binding energy. The XPS results show a strong initial shift of core levels to lower binding energy in the perovskite, which indicates that electrons transfer from the perovskite film to fullerene molecules. Further deposition of fullerene forms C60 solid, accompanied by the reduction of the electron transfer. The strongest electron transfer happened at 1/4 monolayer of fullerene.
Additional file 1 of Hsa_circ_0004296 inhibits metastasis of prostate cancer by interacting with EIF4A3 to prevent nuclear export of ETS1 mRNA
Creators: name: Mao, Shiyu
name: Zhang, Wentao
name: Yang, Fuhan
name: Guo, Yadong
name: Wang, Hong
name: Wu, Yuan
name: Wang, Ruiliang
name: Maskey, Niraj
name: Zheng, Zongtai
name: Li, Cheng
name: Ma, Wenchao
name: Zhang, Junfeng
name: Yan, Yang
name: Yao, Xudong
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: File S1. The Sanger sequencing of the linear circ_0004296 RNA sequence carried on the plasmid.
Additional file 2 of Characteristics and outcomes of emergency department patients across health care systems: an international multicenter cohort study
Creators: name: de Groot, Bas
name: Meijs, Nicoline T. C.
name: Moscova, Michelle
name: Raven, Wouter
name: Gaakeer, Menno I.
name: Thijssen, Wendy A. M. H.
name: Lameijer, Heleen
name: Shetty, Amith
name: Lassen, Annmarie T.
Publisher: name: figshare
Year: 2024
Subjects: Medicine
Biotechnology
Cancer
Mental Health

description: Supplementary file 2.
An Annotated Video Dataset for Computing Video Memorability
Creators: name: Kiziltepe, Rukiye Savran
name: Sweeney, Lorin
name: Constantin, Mihai Gabriel
name: Doctor, Faiyaz
name: de Herrera, Alba Garcia Seco
name: Demarty, Claire-Helene
name: Healy, Graham
name: Ionescu, Bogdan
name: Smeaton, Alan F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Using a collection of publicly available links to short form video clips of an average of 6 seconds duration each, 1,275 users manually annotated each video multiple times to indicate both long-term and short-term memorability of the videos. The annotations were gathered as part of an online memory game and measured a participant's ability to recall having seen the video previously when shown a collection of videos. The recognition tasks were performed on videos seen within the previous few minutes for short-term memorability and within the previous 24 to 72 hours for long-term memorability. Data includes the reaction times for each recognition of each video. Associated with each video are text descriptions (captions) as well as a collection of image-level features applied to 3 frames extracted from each video (start, middle and end). Video-level features are also provided. The dataset was used in the Video Memorability task as part of the MediaEval benchmark in 2020.
description: 11 pages
Finite-size scaling tests for SU(3) lattice gauge theory with color sextet fermions
Creators: name: DeGrand, Thomas
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The observed slow running of the gauge coupling in SU(3) lattice gauge theory with two flavors of color sextet fermions naturally suggests it is a theory with one relevant coupling, the fermion mass, and that at zero mass correlation functions decay algebraically. I perform a finite-size scaling study on simulation data at two values of the bare gauge coupling with this assumption and observe a common exponent for the scaling of the correlation length with the fermion mass, y_m ~ 1.5. An analysis of the scaling of valence Dirac eigenvalues at one of these bare couplings produces a similar number.
description: 23 pages, revtex, 13 figures
Interfacial electronic structure at the CH3NH3PbI3 interface
Creators: name: Niu, D.
name: Liu, X.
name: Xiao, Z.
name: Huang, J.
name: Lyu, L.
name: Zhang, H.
name: Xie, H.
name: Liu, P.
name: Bi, C.
name: Huang, H.
name: Gao, Y.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Interfacial electronic properties of the CH3NH3PbI3 (MAPbI3)/MoOx interface are investigated using ultraviolet photoemission spectroscopy and X-ray photoemission spectroscopy. It is found that the pristine MAPbI3 film coated onto the substrate of poly (3,4-ethylenedioxythiophene) poly(styrenesulfonate)/indium tin oxide by two-step method behaves as an n-type semiconductor, with a band gap of ∼1.7 eV and a valence band edge of 1.40 eV below the Fermi energy (EF). With the MoOx deposition of 64 Å upon MAPbI3, the energy levels of MAPbI3 shift toward higher binding energy by 0.25 eV due to electron transfer from MAPbI3 to MoOx. Its conduction band edge is observed to almost pin to the EF, indicating a significant enhancement of conductivity. Meanwhile, the energy levels of MoOx shift toward lower binding energy by ∼0.30 eV, and an interface dipole of 2.13 eV is observed at the interface of MAPbI3/MoOx. Most importantly, the chemical reaction taking place at this interface results in unfavorable interface energy level alignment for hole extraction. A potential barrier of ∼1.36 eV observed for hole transport will impede the hole extraction from MAPbI3 to MoOx. On the other hand, a potential barrier of ∼0.14 eV for electron extraction is too small to efficiently suppress electrons extracted from MAPbI3 to MoOx. Therefore, such an interface is not an ideal choice for hole extraction in organic photovoltaic devices.
Polymer aggregation correlated transition from Schottky-junction to bulk heterojunction organic solar cells
Creators: name: Huang, J.
name: Xiao, Z.
name: Yang, B.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: The fullerene-based organic Schottky-junction solar cells have recently attracted intensive research interest because of their unique electrical performance, such as significant photocurrent generation from excitons created in fullerenes and large open-circuit voltage (VOC) output induced by high Schottky-barrier height between the anode and the fullerene acceptor. This manuscript reports another remarkably appealing advantage that the fullerene-based Schottky-junction solar cells are more stable than the bulk heterojunction counterparts. The better stability is likely due to mitigative polymer photo-oxidation and/or little morphological change of active film in the aged Schottky-junction devices. The transition from Schottky-junction to bulk heterojunction appears at polymer donor loading ratio of 20–25 wt. % by examining the variation in the VOC with increased loading ratio of the poly(3-hexylthiophene) donor. Multiple experimental evidences, including the absorbance spectrum measurement, photoluminescence study, active film morphology characterization, and charge mobility measurement, conclusively reveal that the transition from Schottky-junction to bulk heterojunction is correlated to the polymer donor aggregation in the active films.
Lucid Dreams: six piano minatures
Creators: name: Cooper, Jayson
Publisher: name: The University of Melbourne
Year: 2025
Subjects: classificationCode: 360302
subject: Music composition and improvisation

description: Lucid dreams are a collection of six piano miniatures, each evoking and image or dream from my memories of childhood or parts of Australia that I have lived. These pieces are a study in expression, and they explore how music can call to mind visual images and feelings. Each miniature has a certain meaning and they represent the power of music to evoke places. These little studies are place-based music representations. Composed Jayson Cooper (2001)
Qualifying composition dependent p and n self-doping in CH3NH3PbI3
Creators: name: Gao, Y.
name: Liu, X.
name: Shao, Y.
name: Xie, H.
name: Wang, Q.
name: Huang, J.
name: Lyu, L.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: We report the observation of self-doping in perovskite. CH3NH3PbI3 was found to be either n- or p-doped by changing the ratio of methylammonium halide (MAI) and lead iodine (PbI2) which are the two precursors for perovskite formation. MAI-rich and PbI2-rich perovskite films are p and n self-doped, respectively. Thermal annealing can convert the p-type perovskite to n-type by removing MAI. The carrier concentration varied as much as six orders of magnitude. A clear correlation between doping level and device performance was also observed.
Spectrophotometrically Identified stars in the PEARS-N and PEARS-S fields
Creators: name: Pirzkal, N.
name: Burgasser, A. J.
name: Malhotra, S.
name: Holwerda, B. W.
name: Sahu, K. C.
name: Rhoads, J. E.
name: Xu, C.
name: Bochanski, J. J.
name: Walsh, J. R.
name: Windhorst, R. A.
name: Hathi, N. P.
name: Cohen, S. H.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Deep ACS slitless grism observations and identification of stellar sources are presented within the Great Observatories Origins Deep Survey (GOODS) North and South fields which were obtained in the Probing Evolution And Reionization Spectroscopically (PEARS) program. It is demonstrated that even low resolution spectra can be a very powerful means to identify stars in the field, especially low mass stars with stellar types M0 and later. The PEARS fields lay within the larger GOODS fields, and we used new, deeper images to further refine the selection of stars in the PEARS field, down to a magnitude of mz = 25 using a newly developed stellarity parameter. The total number of stars with reliable spectroscopic and morphological identification was 95 and 108 in the north and south fields respectively. The sample of spectroscopically identified stars allows constraints to be set on the thickness of the Galactic thin disk as well as contributions from a thick disk and a halo component. We derive a thin disk scale height, as traced by the population of M4 to M9 dwarfs along two independent lines of sight, of h_thin = 370 +60/-65 pc. When including the more massive M0 to M4 dwarf population, we derive h_thin = 300 +/- 70pc. In both cases, we observe that we must include a combination of thick and halo components in our models in order to account for the observed numbers of faint dwarfs. The required thick disk scale height is typically h_thick=1000 pc and the acceptable relative stellar densities of the thin disk to thick disk and the thin disk to halo components are in the range of 0.00025
Hole- and electron-injection driven phase transitions in transition metal dichalcogenides and beyond: A unified understanding
Creators: name: Lv, Xiao-Huan
name: Wu, Meng-Qi
name: Ren, Yin-Ti
name: Wang, Rui-Ning
name: Zhang, Hu
name: Jin, Chen-Dong
name: Lian, Ru-Qian
name: Gong, Peng-Lai
name: Shi, Xing-Qiang
name: Wang, Jiang-Long
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The phase transitions among polymorphic two-dimensional (2D) transition metal dichalcogenides (TMDs) have attracted increasing attention for their potential in enabling distinct functionalities in the same material for making integrated devices. Electron-injection to TMDs has been proved to be a feasible way to drive structural phase transition from the semiconducting H-phase to the semimetal dT-phase. In this contribution, based on density-functional theory (DFT) calculations, firstly we demonstrate that hole-injection drives the transition of the H-phase more efficiently to the metallic T-phase than to the semimetallic dT-phase for group VI-B TMDs (MoS2, WS2, and MoSe2, etc.). The origin can be attributed to the smaller work function of the T-phase than that of the dT-phase. Our work function analysis can distinguish the T and dT phases quantitatively while it is challenging for the commonly used crystal field splitting analysis. In addition, our analysis provides a unified understanding for both hole- and electron-injection induced phase transitions for 2D materials beyond TMDs, such as the newly synthesized MoSi2N4 family. Moreover, the hole-driven T-phase transition mechanism can explain the recent experiment of WS2 phase transition by hole-doping with yttrium (Y) atoms. Using 1/3 Y-doped WS2 and MoSe2 as examples, we show that the Mo and W valency increases to 5+. These above findings open up an avenue to obtain the metallic T-phase, which expands the possible stable phases of 2D materials.
Development of P.K. Page's imagery : the Subjective eye: the eye of the conjuror
Creators: name: Valleau, Allen Keith
Publisher: name: University of British Columbia
Year: 2011

description: In an attempt to develop a better perspective on P.K. Page's work, the thesis concentrates on the development of her imagery. The imagery illustrates the direction of Page's development and a close study of its nature will uncover the central concerns of Page's writing. The first chapter of the thesis examines the field of critical analysis already undertaken on Page showing its good points and its weak points. The following three chapters trace the chronological development of Page's work. The second chapter covers up to the writing of The Sun And The Moon in 1944. Even her early work illustrates that as her images became complex, her concern with perspective grew. Her more complex work such as, "The Stenographers", "Panorama", and The Sun And The Moon in particular illustrate this concern. The third chapter analyzes the poetry of her first collection As Ten As Twenty and looks at the period between 1944 and 1954. In this period Page's images become more complex and her work becomes overtly involved with perspective and vision. Images revolving around trains, photographs, snow and whiteness become recurring and a continuity develops between her subjects. Most significantly "Round Trip", "The Bands And The Beautiful Children", "Adolescence", "Them Ducks", "Stories Of Snow", "Subjective Eye", and "Photos Of A Salt Mine" illustrate how Page's concern with imagery and perspective was melding together. The fourth chapter deals with her second collection The Metal And The Flower and her third collection Cry Ararat I. It also looks briefly at Page's shift to painting in the Sixties and examines some of her more recent poetry. In this period Page undergoes her most significant changes. Images recur from earlier periods, but now the images elicit a more complex view of the world. Page's poetry reflects her awareness of the bounds of vision. She realizes that one must become a conjuror in order to see different perspectives. Her poetry, painting, and articles reflect this shift as "Reflection In A Train Window", "Arras", "Cry Ararat!", "A Backwards Journey", "Questions And Images", and "Traveller, Conjuror, Journeyman" illustrate. The study demonstrates that as Page's imagery developed, there was a parallel development in her concern with perspective and vision. Her imagery and her vision merge as perspective and vision become her primary concern. Her recent poetry indicates that any further development will be in the same vein as she attempts to discover more about the interrelationship between image, perspective and vision.