Browse through over scientific publications by CA2DM staff, students, collaborators, and partners.
Phys. Rev. Lett., 120 (18), pp. 187401, 2018, ISSN: 0031-9007, (WOS:000432975700004).
Using the quasiclassical concept of Berry curvature we demonstrate that a Dirac exciton-a pair of Dirac quasiparticles bound by Coulomb interactions-inevitably possesses an intrinsic angular momentum making the exciton effectively self-rotating. The model is applied to excitons in two-dimensional transition metal dichalcogenides, in which the charge carriers are known to be described by a Dirac-like Hamiltonian. We show that the topological self-rotation strongly modifies the exciton spectrum and, as a consequence, resolves the puzzle of the overestimated two-dimensional polarizability employed to fit earlier spectroscopic measurements.
Phys. Rev. X, 8 (2), pp. 021034, 2018, ISSN: 2160-3308, (WOS:000432983000002).
Hybrid inorganic-organic perovskites have recently attracted much interest because of both rich fundamental sciences and potential applications such as the primary energy-harvesting material in solar cells. However, an understanding of electronic and optical properties, particularly the complex dielectric function, of these materials is still lacking. Here, we report on the electronic and optical properties of selective perovskites using temperature-dependent spectroscopic ellipsometry, x-ray absorption spectroscopy supported by first-principles calculations. Surprisingly, the perovskite FA(0.85)Cs(0.15)Pbl(2.9)Br(0.1) has a very high density of low-energy excitons that increases with increasing temperature even at room temperature, which is not seen in any other material. This is found to be due to the strong, unscreened electron-electron and partially screened electron-hole interactions, which then tightly connect low- and high-energy bands caused by doping.
Adv. Funct. Mater., 28 (20), pp. 1800036, 2018, ISSN: 1616-301X, (WOS:000431959500010).
To effectively enhance the energy density and overall performance of electrochemical capacitors (ECs), a new strategy is demonstrated to increase both the intrinsic activity of the reaction sites and their density. Herein, nickel cobalt phosphides (NiCoP) with high activity and nickel cobalt hydroxides (NiCo-OH) with good stability are purposely combined in a hierarchical cactus-like structure. The hierarchical electrode integrates the advantages of 1D nanospines for effective charge transport, 2D nanoflakes for mechanical stability, and 3D carbon cloth substrate for flexibility. The NiCoP/NiCo-OH 3D electrode delivers a high specific capacitance of approximate to 1100 F g(-1), which is around seven times higher than that of bare NiCo-OH. It also possesses approximate to 90% capacitance retention after 1000 charge-discharge cycles. An asymmetric supercapacitor composed of NiCoP/NiCo-OH cathode and metal-organic framework-derived porous carbon anode achieves a specific capacitance of approximate to 100 F g(-1), high energy density of approximate to 34 Wh kg(-1), and excellent cycling stability. The cactus-like NiCoP/NiCo-OH 3D electrode presents a great potential for ECs and is promising for other functional applications such as catalysts and batteries.
Phys. Rev. B, 97 (20), pp. 205409, 2018, ISSN: 2469-9950, (WOS:000432027800005).
We investigate the excitonic spectrum of MoS2 monolayers and calculate its optical absorption properties over a wide range of energies. Our approach takes into account the anomalous screening in two dimensions and the presence of a substrate, both cast by a suitable effective Keldysh potential. We solve the Bethe-Salpeter equation using as a basis a Slater-Koster tight-binding model parameterized to fit the ab initio MoS2 band structure calculations. The resulting optical conductivity is in good quantitative agreement with existing measurements up to ultraviolet energies. We establish that the electronic contributions to the C excitons arise not from states at the Gamma point, but from a set of k points over extended portions of the Brillouin zone. Our results reinforce the advantages of approaches based on effective models to expeditiously explore the properties and tunability of excitons in TMD systems.
Phys. Rev. B, 97 (19), pp. 195447, 2018, ISSN: 2469-9950, (WOS:000433287800010).
This paper is devoted to photocarrier transport across a two-dimensional graphene-semiconductor Schottky junction. We study linear response to monochromatic light with excitation energy well below the semiconductor band gap. The operation mechanism relies on both photoelectric and thermionic emission from graphene to a two-dimensional semiconductor under continuous illumination and zero bias. Due to the thermalization bottleneck for low-energy carriers in graphene, the photoelectric contribution is found to dominate the photoresponse at near-infrared excitation frequencies and below. The extended thermalization time provides an interesting opportunity to facilitate the interlayer photocarrier transport bypassing the thermalization stage. As a result, the total photoresponsivity rapidly increases with excitation wavelength making graphene-semiconductor junctions attractive for photodetection at the telecommunication frequency.
Phys. Rev. B, 97 (19), pp. 195150–1, 2018, ISSN: 2469-9950, (WOS:000433063200002).
Here, we report an anisotropic small-hole polaron in an orthorhombic structure of BiVO4 films grown by pulsed-laser deposition on yttrium-doped zirconium oxide substrate. The polaronic state and electronic structure of BiVO4 films are revealed using a combination of polarization-dependent x-ray absorption spectroscopy at V L-3,L-2 edges, spectroscopic ellipsometry, x-ray photoemission spectroscopies, and high-resolution x-ray diffraction with the support of first-principles calculations. We find that in the orthorhombic phase, which is slightly different from the conventional pucherite structure, the unoccupied V 3d orbitals and charge inhomogeneities lead to an anisotropic small-hole polaron state. Our result shows the importance of the interplay of charge and lattice for the formation of a hole polaronic state, which has a significant impact in the electrical conductivity of BiVO4, hence its potential use as a photoanode for water splitting.
Nat. Nanotechnol., 13 (4), pp. 322–+, 2018, ISSN: 1748-3387, (WOS:000429935600018).
Solid-state molecular tunnel junctions are often assumed to operate in the Landauer regime, which describes essentially activationless coherent tunnelling processes. In solution, on the other hand, charge transfer is described by Marcus theory, which accounts for thermally activated processes. In practice, however, thermally activated transport phenomena are frequently observed also in solid-state molecular junctions but remain poorly understood. Here, we show experimentally the transition from the Marcus to the inverted Marcus region in a solid-state molecular tunnel junction by means of intra-molecular orbital gating that can be tuned via the chemical structure of the molecule and applied bias. In the inverted Marcus region, charge transport is incoherent, yet virtually independent of temperature. Our experimental results fit well to a theoretical model that combines Landauer and Marcus theories and may have implications for the interpretation of temperature-dependent charge transport measurements in molecular junctions.
Nature, 556 (7701), pp. 355–+, 2018, ISSN: 0028-0836, (WOS:000430285200047).
Investigations of two-dimensional transition-metal chalcogenides (TMCs) have recently revealed interesting physical phenomena, including the quantum spin Hall effect(1,2), valley polarization(3,4) and two-dimensional superconductivity(5), suggesting potential applications for functional devices(6-10). However, of the numerous compounds available, only a handful, such as Mo- and W-based TMCs, have been synthesized, typically via sulfurization(11-15), selenization(16,17) and tellurization(18) of metals and metal compounds. Many TMCs are difficult to produce because of the high melting points of their metal and metal oxide precursors. Molten-salt-assisted methods have been used to produce ceramic powders at relatively low temperature(19) and this approach(20) was recently employed to facilitate the growth of monolayer WS2 and WSe2. Here we demonstrate that molten-salt-assisted chemical vapour deposition can be broadly applied for the synthesis of a wide variety of two-dimensional (atomically thin) TMCs. We synthesized 47 compounds, including 32 binary compounds (based on the transition metals Ti, Zr, Hf, V, Nb, Ta, Mo, W, Re, Pt, Pd and Fe), 13 alloys (including 11 ternary, one quaternary and one quinary), and two heterostructured compounds. We elaborate how the salt decreases the melting point of the reactants and facilitates the formation of intermediate products, increasing the overall reaction rate. Most of the synthesized materials in our library are useful, as supported by evidence of superconductivity in our monolayer NbSe2 and MoTe2 samples(21,22) and of high mobilities in MoS2 and ReS2. Although the quality of some of the materials still requires development, our work opens up opportunities for studying the properties and potential application of a wide variety of two-dimensional TMCs.
Nat. Commun., 9 , pp. 1545, 2018, ISSN: 2041-1723, (WOS:000430286800020).
The interest in mid-infrared technologies surrounds plenty of important optoelectronic applications ranging from optical communications, biomedical imaging to night vision cameras, and so on. Although narrow bandgap semiconductors, such as Mercury Cadmium Telluride and Indium Antimonide, and quantum superlattices based on inter-subband transitions in wide bandgap semiconductors, have been employed for mid-infrared applications, it remains a daunting challenge to search for other materials that possess suitable bandgaps in this wavelength range. Here, we demonstrate experimentally for the first time that twodimensional (2D) atomically thin PtSe2 has a variable bandgap in the mid-infrared via layer and defect engineering. Here, we show that bilayer PtSe2 combined with defects modulation possesses strong light absorption in the mid-infrared region, and we realize a mid-infrared photoconductive detector operating in a broadband mid-infrared range. Our results pave the way for atomically thin 2D noble metal dichalcogenides to be employed in high-performance mid-infrared optoelectronic devices.
Appl. Phys. Lett., 112 (17), pp. 171109, 2018, ISSN: 0003-6951, (WOS:000431072800009).
The standard theory of thermionic emission developed for three-dimensional semiconductors does not apply to two-dimensional materials even for making qualitative predictions because of the vanishing out-of-plane quasiparticle velocity. This study reveals the fundamental origin of the out-of-plane charge carrier motion in a two-dimensional conductor due to the finite quasiparticle lifetime and huge uncertainty of the out-of-plane momentum. The theory is applied to a Schottky junction between graphene and a bulk semiconductor to derive a thermionic constant, which, in contrast to the conventional Richardson constant, is determined by the Schottky barrier height and Fermi level in graphene. Published by AIP Publishing.
Nanotechnology, 29 (10), pp. 105707, 2018, ISSN: 0957-4484, (WOS:000424020000001).
Recently, catalytic activity of atomically thin two dimensional (2D) materials has attracted great interest. In this paper, via first principles calculations, we show for the first time that N-doped 2D one-atom-thick ZnO nanosheets exhibit high catalytic activity towards CO oxidation. A pristine 2D ZnO nanosheet is chemically inert and as a result, CO and O-2 molecules do not chemically bind on the nanosheet. Our calculations predict that the N doping activates the ZnO sheet, leading to strong CO and O-2 adsorptions. We further show that the CO oxidation catalyzed by the N-doped 2D ZnO sheet has a low reaction barrier around 0.5 eV. Besides high catalytic activity, the N-doped 2D ZnO sheet also demonstrates intriguing electronic and magnetic properties. These findings provide new opportunities for the future development of high performance 2D catalysts.
Adv. Opt. Mater., 6 (5), pp. 1701327, 2018, ISSN: 2195-1071, (WOS:000426604700017).
Defects engineering in transition metal dichalcogenides is a topic of intense research recently, since crystal properties can be controlled and tailored during and after fabrication. In this context, defects characterization is key to understand the material structure and enable specific applications. In this work, second-harmonic generation (SHG) spectroscopy is used to map concentric triangular defective regions in as-grown monolayer tungsten disulfide, demonstrating that SHG can be used for defects observation and characterization in layered noncentrosymmetric nanomaterials. In monolayer tungsten disulfide, in regions where sulfur atoms are replaced by vacancies, it is observed that the SHG signal experiences an enhancement of two orders of magnitude due to the presence of mid-gap states. Moreover, SHG is anticorrelated with photoluminescence emission from the material, showing that both techniques can provide complementary information about the crystalline structure. In comparison with other optical characterization techniques, SHG provides fast response, does not depend on real energy transitions, and can be used for defects mapping in several other materials regardless the optical bandgap energy.
Phys. Rev. B, 97 (12), pp. 121404, 2018, ISSN: 2469-9950, (WOS:000428011700002).
Electrons behave like a classical fluid with a momentum distribution function that varies slowly in space and time when the quantum-mechanical carrier-carrier scattering dominates over all other scattering processes. Recent experiments in monolayer and bilayer graphene have reported signatures of such hydrodynamic electron behavior in ultraclean devices. In this theoretical work, starting from a microscopic treatment of electron-electron, electron-phonon, and electron-impurity interactions within the random phase approximation, we demonstrate that monolayer and bilayer graphene both host two different hydrodynamic regimes. We predict that the hydrodynamic window in bilayer graphene is stronger than in monolayer graphene, and has a characteristic "v shape" as opposed to a "lung shape." Finally, we collapse experimental data onto a universal disorder-limited theory, demonstrating that the observed violation of the Wiedemann-Franz law in monolayers occurs in a regime dominated by impurity-induced electron-hole puddles.
Chem. Mat., 30 (5), pp. 1762–1768, 2018, ISSN: 0897-4756, (WOS:000427661500036).
Two-dimensional covalent organic framework (COF) materials can serve as excellent candidates for gas storage due to their high density of periodically arranged pores and channels, which can be tethered with functional groups. However, post-functionalization tends to disturb the structure of the COF; thus, it is attractive to develop synthetic approaches that generate built-in functionalities. Herein, we develop a new strategy for the construction of 2D-COFs with built-in, unreacted periodic bonding networks by solvent-directed divergent synthesis. Tetraphenylethane (TPE), which combines both pi-rigidity for stacking and rotational flexibility, is selected as the central core for COF construction. By solvent control, two distinct COF structures could be constructed, arising from a [4 + 4] condensation pathway (TPE-COF-I) or an unusual [2 + 4] pathway (TPE-COF-II). TPE-COF-II contains unreacted linker units arranged around its pores and shows greatly enhanced carbon dioxide adsorption performance (23.2 wt %, 118.8 cm(3) g(-1) at 1 atm, 273 K), which is among the best COF materials for CO2 adsorption reported to date.
Adv. Mater., 30 (6), pp. 1704619, 2018, ISSN: 0935-9648, (WOS:000424485100021).
Black phosphorus (BP) exhibits thickness-dependent band gap and high electronic mobility. The chemical intercalation of BP with alkali metal has attracted attention recently due to the generation of universal superconductivity regardless of the type of alkali metals. However, both ultrathin BP, as well as alkali metal-intercalated BP, are highly unstable and corrode rapidly under ambient conditions. This study demonstrates that alkali metal hydride intercalation decouples monolayer to few layers BP from the bulk BP, allowing an optical gap of approximate to 1.7 eV and an electronic gap of 1.98 eV to be measured by photoluminescence and electron energy loss spectroscopy at the intercalated regions. Raman and transport measurements confirm that chemically intercalated BP exhibits enhanced stability, while maintaining a high hole mobility of up to approximate to 800 cm(2) V-1 s(-1) and on/off ratio exceeding 10(3). The use of alkali metal hydrides as intercalants should be applicable to a wide range of layered 2D materials and pave the way for generating highly stable, quasi-monolayer 2D materials.
Adv. Mater., 30 (6), pp. 1705039, 2018, ISSN: 0935-9648, (WOS:000424485100023).
Photodetectors with broadband detection capability are desirable for sensing applications in the coming age of the internet-of-things. Although 2D layered materials (2DMs) have been actively pursued due to their unique optical properties, by far only graphene and black arsenic phosphorus have the wide absorption spectrum that covers most molecular vibrational fingerprints. However, their reported responsivity and response time are falling short of the requirements needed for enabling simultaneous weak-signal and high-speed detections. Here, a novel 2DM, black phosphorous carbide (b-PC) with a wide absorption spectrum up to 8000 nm is synthesized and a b-PC phototransistor with a tunable responsivity and response time at an excitation wavelength of 2004 nm is demonstrated. The b-PC phototransistor achieves a peak responsivity of 2163 A W-1 and a shot noise equivalent power of 1.3 fW Hz(-1/2) at 2004 nm. In addition, it is shown that a response time of 0.7 ns is tunable by the gating effect, which renders it versatile for high-speed applications. Under the same signal strength (i.e., excitation power), its performance in responsivity and detectivity in room temperature condition is currently ahead of recent top-performing photodetectors based on 2DMs that operate with a small bias voltage of 0.2 V.
ACS Photonics, 5 (2), pp. 353–358, 2018, ISSN: 2330-4022, (WOS:000426142800015).
There are strong interests in constructing nanolasers using two-dimensional transition metal dichalcogenides (TMDs) due to their strong light matter interactions and high optical gain. However, most cavity designs based on transfer of exfoliated TMDs on silicon oxide are not optimized since monolayer emitters are located far from where the photonic mode reaches maximum intensity. By taking advantage of the excellent dielectric properties of hexagonal boron nitride (h-BN), we design a new microdisk optical cavity fabricated from a van der Waals (VdW) stacked h-BN/WS2/hBN. The heterostructure is patterned into microdisk cavities characterized by whispering gallery modes (WGMs). The emission intensity of the WS2, trion is enhanced by 2.9 times that of exciton in the heterostructure, giving rise to whisper gallery modes with resonance intensities that show nonlinear power dependence. A Rayleigh scatterer directs the cavity emission to vertical collection. Such VdW heterostructure provides an atomically smooth interface that is ideal for low loss photon propagation, giving a Q factor of 1200.
ACS Nano, 12 (2), pp. 1940–1948, 2018, ISSN: 1936-0851, (WOS:000426615600108).
Manipulation of lattice strain is emerging as a powerful means to modify the properties of low-dimensional materials. Most approaches rely on external forces to induce strain, and the role of interlayer van der Waals (vdW) coupling in generating strain profiles in homobilayer transition metal dichalcogenide (TMDC) films is rarely considered. Here, by applying atomic-resolution electron microscopy and density functional theory calculations, we observed that a mirror twin boundary (MTB) modifies the interlayer vdW coupling in bilayer TMDC films, leading to the development of local strain for a few nanometers in the vicinity of the MTB. Interestingly, when a single MTB in one layer is "paired" with another MTB in an adjacent layer, interlayer-induced strain is reduced when the MTBs approach each other. Therefore, MTBs are not just 1D discontinuities; they can exert localized 2D strain on the adjacent lattices.
ACS Nano, 12 (2), pp. 2070–2077, 2018, ISSN: 1936-0851, (WOS:000426615600121).
Structures determine properties of materials, and controllable phase transitions are, therefore, highly desirable for exploring exotic physics and fabricating devices. We report a direct observation of a controllable semiconductor-metal phase transition in bilayer tungsten diselenide (WSe2) with potassium (K) surface functionalization. Through the integration of in situ field-effect transistors, X-ray photoelectron spectroscopy, ultraviolet photoelectron spectroscopy measurements, and first-principles calculations, we identify that the electron doping from K adatoms drives bilayer WSe2 from a 2H phase semiconductor to a IT' phase metal. The phase transition mechanism is satisfactorily explained by the electronic structures and energy alignment of the 2H and IT' phases. This explanation can be generally applied to understand doping-induced phase transitions in two-dimensional (2D) structures. Finally, the associated dramatic changes of electronic structures and electrical conductance make this controllable semiconductor-metal phase transition of interest for 2D semiconductor based electronic and optoelectronic devices.
Biomaterials, 155 , pp. 236–250, 2018, ISSN: 0142-9612, (WOS:000419539000020).
Recent advances in stem cell research and nanotechnology have significantly influenced the landscape of tissue engineering and regenerative medicine. Precise and reproducible control of the fate of stem cells and their lineage specification have, therefore, become more crucial than ever for the success of stem cell-based technologies. Extensive research has been geared towards developing materials that are capable of mimicking the physiological microenvironment of stem cells and at the same time, controlling their eventual fate. An interesting example of these materials is two-dimensional graphene and its related derivatives. A high specific surface area coupled with superior chemical stability, biocompatibility, and flexibility in functionalization render graphene-based nanomaterials one of the most exciting platforms for tissue engineering and regenerative medicine applications, especially for stem cell growth, proliferation, and differentiation. In this review, we discuss the love-hate relationship between stem cells and graphene-based nanomaterials in tissue engineering and regenerative medicine. We first discuss the role and importance of stem cells in tissue engineering and regenerative medicine. We then highlight the use of nanomaterials for stem cell control, the interaction between stem cells and graphene nano materials as well as their biocompatibility, biodistribution, and biodegradability considerations. We also offer our perspectives on the various challenges and opportunities facing the use of graphene and its derivatives for stem cell growth and differentiation. (C) 2017 The Authors. Published by Elsevier Ltd.
Carbon, 128 , pp. 237–248, 2018, ISSN: 0008-6223, (WOS:000418479900028).
Heteroatom-doped three-dimensional (3D) graphene-based macroscopic assemblies (GMAs) are receiving considerable attention for application as heterogeneous photocatalysts. However, the relationship between the concentration and the bonding state of heteroatoms at the atomic scale and the resulting photoelectronic and photocatalytic properties of 3D GMAs remain unexplored. Herein, we describe a simple, environmentally benign, one-pot hydrothermal reduction-induced self-assembly process to prepare boron-doped graphene aerogels by using graphene oxide and boric acid as carbon (C) and boron (B) sources, respectively. By rationally adjusting the dopant elemental precursor, the B content was modulated from similar to 0.14 to similar to 3.37 at%. The as-synthesized B-doped bulk graphene monoliths with well-defined interconnected 3D porous networks can effectively degrade acridine orange (AO), a well-known recalcitrant and biologically toxic pollutant, under visible light irradiation. Particularly, the aerogel with a moderate B loading of similar to 2.15 at% displayed a superior photodegradation efficiency of similar to 98%, which is 2.13 times higher than the undoped material. The generation of oxygenated B derivatives, such as borinic esters and boronic acids, on the edge sites and defect regions of the 2D graphene building blocks was primarily responsible for the exceptional photocatalytic activity. Besides, these macroscale photocatalysts are highly stable and easily recyclable for practical applications. (c) 2017 Elsevier Ltd. All rights reserved.
J. Phys.-Condes. Matter, 30 (3), pp. 035003, 2018, ISSN: 0953-8984, (WOS:000418406500001).
Hydrogen and hydrogen-containing gases are commonly used as reductants in chemical vapor deposition growth of MoS2. Here, we consider the defects resulting from the presence of hydrogen during growth and the resulting electronically active defects. In particular, we find that the interstitial hydrogen defect is a negative-U center with amphoteric donor and acceptor properties. Additionally, we consider the effects of interaction with water and oxygen. The defects are analysed using density functional theory calculations.
Nat. Rev. Chem., 2 (1), pp. UNSP 0105, 2018, ISSN: 2397-3358, (WOS:000419956400004).
Low-dimensional materials and their hybrids have emerged as promising candidates for electrocatalytic and photocatalytic hydrogen evolution and CO2 conversion into useful molecules. Progress in synthetic methods for the production of catalysts coupled with a better understanding of the fundamental catalytic mechanisms has enabled the rational design of catalytic nanomaterials with improved performance and selectivity. In this Review, we analyse the state of the art in the implementation of low-dimensional nanomaterials and their van der Waals heterostructures for hydrogen evolution and CO2 reduction by electrocatalysis and photocatalysis. We explore the mechanisms involved in both reactions and the different strategies to further optimize the activity, efficiency and selectivity of low-dimensional catalysts.
Phys. Rev. B, 97 (4), pp. 041405, 2018, ISSN: 2469-9950, (WOS:000419707300004).
Lifting the valley degeneracy is an efficient way to achieve valley polarization for further valleytronics operations. In this Rapid Communication, we demonstrate that a large valley splitting can be obtained in monolayer transition metal dichalcogenides by magnetic proximity coupling to an insulating antiferromagnetic substrate. As an example, we perform first-principles calculations to investigate the electronic structures of monolayer WS2 on the MnO(111) surface. Our calculation results suggest that a large valley splitting of 214 meV, which corresponds to a Zeeman magnetic field of 1516 T, is induced in the valence band of monolayer WS2. The magnitude of valley splitting relies on the strength of interfacial orbital hybridization and can be tuned continually by applying an external out-of-plane pressure and in-plane strain. More interestingly, we find that both spin and valley index will flip when the magnetic ordering of MnO is reversed. Besides, owing to the sizable Berry curvature and time-reversal symmetry breaking in the WS2/MnO heterostructure, a spin-and valley-polarized anomalous Hall current can be generated in the presence of an in-plane electric field, which allows one to detect valleys by the electrical approach. Our results shed light on the realization of valleytronic devices using the antiferromagnetic insulator as the substrate.
Adv. Electron. Mater., 4 (1), pp. 1700442, 2018, ISSN: 2199-160X, (WOS:000419670400023).
Recently, both lateral and vertical p-n junctions have been realized in 2D materials using various strategies, with a number of works on exploring the potential of lateral heterojunctions resulting from thickness-modulated bandgaps at the interface. Here, electrically tunable all-black-phosphorus (BP) lateral heterojunction diodes, without the need of split-gating or selective chemical doping or transfer-based vertical stacking, are experimentally demonstrated. The BP heterojunction diode, which exhibits an ultralow off-state current density of 8 pA mu m(-1) at a mere V-d of 100 mV and a significant gate-tunable current-rectifying behavior with the highest rectification ratio exceeding 600, is able to harvest solar energy at both visible and near-infrared wavelengths beyond the bandgap limitation of transition metal dichalcogenides. Specifically, at 660 nm, the device achieves an open-circuit voltage (V-oc) of 210 mV and a short-circuit current (I-sc) of 1.5 nA at 3.6 W cm(-2) power density, resulting in an external quantum efficiency of 7.4% which outperforms both split-gating and chemically doped homojunctions. This work paves the way for the exploitation of BP lateral heterojunction for broadband energy harvesting towards future optoelectronic applications.
Phys. Rev. B, 97 (4), pp. 041104, 2018, ISSN: 2469-9950, (WOS:000419615700001).
Weyl semimetals are novel topological conductors that host Weyl fermions as emergent quasiparticles. In this Rapid Communication, we propose a new type ofWeyl semimetal state that breaks both time-reversal symmetry and inversion symmetry in the RAlGe (R = rare-earth) family. Compared to previous predictions of magnetic Weyl semimetal candidates, the prediction of Weyl nodes in RAlGe is more robust and less dependent on the details of the magnetism because the Weyl nodes are generated already by the inversion breaking and the ferromagnetism acts as a simple Zeeman coupling that shifts theWeyl nodes in k space. Moreover, RAlGe offers remarkable tunability, which covers all varieties ofWeyl semimetals including type I, type II, inversion breaking, and time-reversal breaking, depending on a suitable choice of the rare-earth elements. Furthermore, the unique noncentrosymmetric and ferromagnetic Weyl semimetal state in RAlGe enables the generation of spin currents.
Nanoscale Res. Lett., 13 , pp. 43, 2018, ISSN: 1556-276X, (WOS:000424500200002).
The abounding possibilities of discovering novel materials has driven enhanced research effort in the field of materials physics. Only recently, the quantum anomalous hall effect (QAHE) was realized in magnetic topological insulators (TIs) albeit existing at extremely low temperatures. Here, we predict that MPn (M=Ti, Zr, and Hf; Pn=Sb and Bi) honeycombs are capable of possessing QAH insulating phases based on first-principles electronic structure calculations. We found that HfBi, HfSb, TiBi, and TiSb honeycomb systems possess QAHE with the largest band gap of 15 meV under the effect of tensile strain. In low-buckled HfBi honeycomb, we demonstrated the change of Chern number with increasing lattice constant. The band crossings occurred at low symmetry points. We also found that by varying the buckling distance we can induce a phase transition such that the band crossing between two Hf d-orbitals occurs along high-symmetry point K2. Moreover, edge states are demonstrated in buckled HfBi zigzag nanoribbons. This study contributes additional novel materials to the current pool of predicted QAH insulators which have promising applications in spintronics.
Energy Technol., 6 (1), pp. 110–121, 2018, ISSN: 2194-4288, (WOS:000424274700012).
Electrochemical CO2 reduction (EC-CO2R) has seen a resurgence in interest over the past several years; however, the means of analyzing catalytically produced products continues to rely on decades-old methods such as gas chromatography, high-performance liquid chromatography, and nuclear magnetic resonance. Real-time analysis of the gaseous and liquid products of this reaction is highly desirable; however, few analytical techniques have been developed thus far to meet this need. Here, we demonstrate the first use of selected-ion flow-tube mass spectrometry (SIFT-MS) as an analytical tool capable of measuring in real time both the gas-and liquid-phase products of EC-CO2R in aqueous solution. SIFT-MS uses well-understood ion-molecule reactions to enable the analysis of similar multicomponent mixtures by preventing substantial fragmentation of the analyte. We lay out the framework in which to evaluate the tool's capabilities and show that the C-1-C-3 hydrocarbon, alcohol, and aldehyde products of CO2R should be quantitatively detectable.
Phys. Rev. B, 97 (7), pp. 075125, 2018, ISSN: 2469-9950, (WOS:000424901800002).
Nanoscale, 10 (8), pp. 3904–3910, 2018, ISSN: 2040-3364, (WOS:000426148500038).
Recent experiments demonstrate a temperature control of the electric conduction through a ferrocene-based molecular junction. Here we examine the results in view of determining means to distinguish between transport through single-particle molecular levels or via transport channels split by Coulomb repulsion. Both transport mechanisms are similar in molecular junctions given the similarities between molecular intralevel energies and the charging energy. We propose an experimentally testable way to identify the main transport process. By applying a magnetic field to the molecule, we observe that an interacting theory predicts a shift of the conductance resonances of the molecule whereas in the non-interacting case each resonance is split into two peaks. The interaction model works well in explaining our experimental results obtained in a ferrocene-based single-molecule junction, where the charge degeneracy peaks shift (but do not split) under the action of an applied 7-Tesla magnetic field. This method is useful for a proper characterization of the transport properties of molecular tunnel junctions.
Adv. Mater., 30 (10), pp. 1706322, 2018, ISSN: 0935-9648, (WOS:000426720400028).
ACS Appl. Mater. Interfaces, 10 (8), pp. 7248–7255, 2018, ISSN: 1944-8244, (WOS:000426618000052).
Layered rhenium disulfide (ReS2) field effect transistors (FETs), with thickness ranging from few to dozens of layers, are demonstrated on 20 nm thick HfO2/Si substrates. A small threshold voltage of -0.25 V, high on/off current ratio of up to similar to 10(7), small subthreshold swing of 116 mV/dec, and electron carrier mobility of 6.02 cm(2)/V.s are obtained for the two-layer ReS2 FETs. Low-frequency noise characteristics in ReS2 FETs are analyzed for the first time, and it is found that the carrier number fluctuation mechanism well describes the flicker (18) noise of ReS2 FETs with different thicknesses. pH sensing using a two-layer ReS2 FET with HfO2 as a sensing oxide is then demonstrated with a voltage sensitivity of 54.8 mV/pH and a current sensitivity of 126. The noise characteristics of the ReS2 FET-based pH sensors are also examined, and a corresponding detection limit of 0.0132 pH is obtained. Our studies suggest the high potential of ReS2 for future low-power nanoelectronics and biosensor applications.
ACS Nano, 12 (2), pp. 1859–1867, 2018, ISSN: 1936-0851, (WOS:000426615600098).
Monolayer two-dimensional transition-metal dichalcogenides (2D TMDCs) exhibit promising characteristics in miniaturized nonlinear optical frequency converters, due to their inversion asymmetry and large second-order nonlinear susceptibility. However, these materials usually have very short light interaction lengths with the pump laser because they are atomically thin, such that second-harmonic generation (SHG) is generally inefficient. In this paper, we fabricate a judiciously structured 150 nm-thick planar surface consisting of monolayer tungsten diselenide and sub-20 nm-wide gold trenches on flexible substrates, reporting similar to 7000-fold SHG enhancement without peak broadening or background in the spectra as compared to WSe2 on as-grown sapphire substrates. Our proof-of-concept experiment yields effective second-order nonlinear susceptibility of 2.1 X 10(4) pm/V. Three orders of magnitude enhancement is maintained with pump wavelength ranging from 800 to 900 nm, breaking the limitation of narrow pump wavelength range for cavity-enhanced SHG. In addition, SHG amplitude can be dynamically controlled via selective excitation of the lateral gap plasmon by rotating the laser polarization. Such a fully open, flat, and ultrathin profile enables a great variety of functional samples with high SHG from one patterned silicon substrate, favoring scalable production of nonlinear converters. The surface accessibility also enables integration with other optical components for information processing in an ultrathin and flexible form.
Small Methods, 2 (3), pp. UNSP 1700294, 2018, ISSN: 2366-9608, (WOS:000427018900002).
The discovery of the new class of 2D materials has stimulated extensive research interest for fundamental studies and applied technologies. Owing to their unique electronic and optical properties, which differ from their bulk counterparts and conventional optoelectronic materials, 2D materials at the atomic scale are very attractive for future photovoltaic devices. Over the past years, their great potential for photovoltaic applications has been widely investigated by creating a variety of specific device structures. Here, the recent progress made toward the exploitation of 2D materials for high-performance photovoltaic applications is reviewed. By addressing both lateral and vertical configurations, the prospects offered by 2D materials for future generations of photovoltaic devices are elucidated. In addition, the challenges facing this rapidly progressing research field are discussed, and routes to commercially viable 2D-material-based photovoltaic devices are proposed.
ACS Appl. Mater. Interfaces, 10 (10), pp. 8574–8584, 2018, ISSN: 1944-8244, (WOS:000427910800021).
Copper oxides have been of considerable interest as electrocatalysts for CO2 reduction (CO2R) in aqueous electrolytes. However, their role as an active catalyst in reducing the required overpotential and improving the selectivity of reaction compared with that of polycrystalline copper remains controversial. Here, we introduce the use of selected-ion flow tube mass spectrometry, in concert with chronopotentiometry, in situ Raman spectroscopy, and computational modeling, to investigate CO2R on Cu2O nanoneedles, Cu2O nanocrystals, and Cu(2)0 nanoparticles. We show experimentally that the selective formation of gaseous C-2 products (i.e., ethylene) in CO2R is preceded by the reduction of the copper oxide (Cu2OR) surface to metallic copper. On the basis of density functional theory modeling, CO2R products are not formed as long as Cu2O is present at the surface because Cu2OR is kinetically and energetically more favorable than CO2R.
Phys. Rev. B, 97 (13), pp. 134102, 2018, ISSN: 2469-9950, (WOS:000429114300001).
Hybrid van der Waals heterostructures constructed by the integration of organic molecules and two-dimensional (2D) transition metal dichalcogenide (TMD) materials have useful tunable properties for flexible electronic devices. Due to the chemically inert and atomically smooth nature of the TMD surface, well-defined crystalline organic films form atomically sharp interfaces facilitating optimal device performance. Here, the surface phase transformation of the supramolecular packing structure of fluorinated fullerene (C60F48) on single-layer tungsten diselenide (WSe2) is revealed by low-temperature scanning tunneling microscopy, from thermally stable liquid to solid phases as the coverage increases. Statistical analysis of the intermolecular interaction potential reveals that the repulsive dipole-dipole interaction induced by interfacial charge transfer and substrate-mediated interactions play important roles in stabilizing the liquid C60F48 phases. Theoretical calculations further suggest that the dipole moment per C60F48 molecule varies with the surface molecule density, and the liquid-solid transformation could be understood from the perspective of the thermodynamic free energy for open systems. This study offers insights into the growth behavior at 2D organic/TMD hybrid heterointerfaces.
Nat. Commun., 9 , pp. 1455, 2018, ISSN: 2041-1723, (WOS:000429921000012).
The field of valleytronics has promised greater control of electronic and spintronic systems with an additional valley degree of freedom. However, conventional and two-dimensional valleytronic systems pose practical challenges in the utilization of this valley degree of freedom. Here we show experimental evidences of the valley effect in a bulk, ambient, and bias-free model system of Tin(II) sulfide. We elucidate the direct access and identification of different sets of valleys, based primarily on the selectivity in absorption and emission of linearly polarized light by optical reflection/transmission and photoluminescence measurements, and demonstrate strong optical dichroic anisotropy of up to 600% and nominal polarization degrees of up to 96% for the two valleys with band-gap values 1.28 and 1.48 eV, respectively; the ease of valley selection further manifested in their non-degenerate nature. Such discovery enables a new platform for better access and control of valley polarization.
Nanotechnology, 29 (24), pp. 245705, 2018, ISSN: 0957-4484, (WOS:000430331400002).
By ab initio calculations, we show that when decorated with a photochromic molecule, the catalytic activity of an Au nanocluster can be reversibly controlled by light. The combination of a photochromic thiol-pentacarbonyl azobenzene (TPA) molecule and an Au-8 cluster is chosen as a model catalyst. The TPA molecule has two configurations (trans and cis) that can be reversibly converted to each other upon photo-excitation. Our calculations show that when the TPA takes the trans configuration, the combined system (trans-Au-8) is an excellent catalyst for CO oxidation. The reaction barrier of the catalyzed CO oxidation is less than 0.4 eV. While, the reaction barrier of CO oxidation catalyzed by cis-Au-8 is very high (textgreater 2.7 eV), indicating that the catalyst is inactive. These results pave the way for a new class of light controllable nanoscale catalysts.
Nat. Commun., 9 , pp. 1550, 2018, ISSN: 2041-1723, (WOS:000430389100002).
Orbital degrees of freedom can have pronounced effects on the fundamental properties of electrons in solids. In addition to influencing bandwidths, gaps, correlation strength and dispersion, orbital effects have been implicated in generating novel electronic and structural phases. Here we show how the orbital nature of bands can result in non-trivial effects of strain on band structure. We use scanning-tunneling microscopy to study the effects of strain on the electronic structure of a heteroepitaxial thin film of a topological crystalline insulator, SnTe. By studying the effects of uniaxial strain on the band structure we find a surprising effect where strain applied in one direction has the most pronounced influence on the band structure along the perpendicular direction. Our theoretical calculations indicate that this effect arises from the orbital nature of the conduction and valence bands. Our results imply that a microscopic model capturing strain effects must include a consideration of the orbital nature of bands.
Adv. Mater., 30 (16), pp. 1707077, 2018, ISSN: 0935-9648, (WOS:000430460100020).
Self-assembly of solvated nanoparticles (NPs) is governed by numerous competing interactions. However, relatively little is known about the time-dependent mechanisms through which these interactions enable and guide the nanoparticle self-assembly process. Here, using in situ transmission electron microscopy imaging combined with atomistic modeling, it is shown that the forces governing the self-assembly of hydrophobic nanoparticles change with the nanoparticle shapes. By comparing how gold nanospheres, nanocubes, nanorods, and nanobipyramids assemble, it is shown that the strength of the hydrophobic interactions depends on the overlap of the hydrophobic regions of the interacting nanoparticle surfaces determined by the nanoparticle shapes. Specifically, this study reveals that, in contrast to spherical nanoparticles, where van der Waals forces play an important role, hydrophobic interactions can be more relevant for nanocubes with flat side faces, where an oriented attachment between the nanocubes is promoted by these interactions. The attachment of nanocubes is observed to proceed in two distinct pathways: nanocubes either: (i) prealign their faces before the attachment, or (ii) first connect through a misaligned (edge-to-edge) attachment, followed by a postattachment alignment of their faces. These results have important implications for understanding the interaction dynamics of NPs and provide the framework for the design of future self-assembled nanomaterials.
Nanotoxicology, 12 (4), pp. 274–289, 2018, ISSN: 1743-5390, (WOS:000430425800001).
The time needed for the osseointegration of titanium implants is deemed too long. Moreover, the bacterial colonization of their surfaces is a major cause of failure. Graphene can overcome these issues but its wet transfer onto substrates employs hazardous chemicals limiting the clinical applications. Alternatively, dry transfer technique has been developed, but the biological properties of this technique remain unexplored. Here, a dry transfer technique based on a hot-pressing method allowed to coat titanium substrates with high-quality graphene and coverage area textgreater90% with a single transfer. The graphene-coated titanium is cytocompatible, did not induce cell membrane damage, induced human osteoblast maturation (gene and protein level), and increased the deposition of mineralized matrix compared to titanium alone. Moreover, graphene decreased the formation of biofilms from Streptococcus mutans, Enterococcus faecalis and even from whole saliva on titanium without killing the bacteria. These findings confirm that coating of titanium with graphene via a dry transfer technique is a promising strategy to improve osseointegration and prevent biofilm formation on implants and devices.
Adv. Mater., 30 (18), pp. 1704055, 2018, ISSN: 0935-9648, (WOS:000431615100001).
2D organic-inorganic hybrid perovskites (OIHPs) represent a unique class of materials with a natural quantum-well structure and quasi-2D electronic properties. Here, a versatile direct solution-based synthesis of mono- and few-layer OIHP nanosheets and a systematic study of their electronic structure as a function of the number of monolayers by photoluminescence and absorption spectroscopy are reported. The monolayers of various OIHPs are found to exhibit high electronic quality as evidenced by high quantum yield and negligible Stokes shift. It is shown that the ground exciton peak blueshifts by approximate to 40 meV when the layer thickness reduces from bulk to monolayer. It is also shown that the exciton binding energy remains effectively unchanged for (C6H5(CH2)(2)NH3)(2)PbI4 with the number of layers. Similar trends are observed for (C4H9NH3)(2)PbI4 in contrast to the previous report. Further, the photoluminescence lifetime is found to decrease with the number of monolayers, indicating the dominant role of surface trap states in nonradiative recombination of the electron-hole pairs.
Sci. Adv., 4 (3), pp. eaap9096, 2018, ISSN: 2375-2548, (WOS:000431373300018).
The advent of two-dimensional (2D) materials has led to extensive studies of heterostructures for novel applications. 2D lateral multiheterojunctions and superlattices have been recently demonstrated, but the available growth methods can only produce features with widths in the micrometer or, at best, 100-nm scale and usually result in rough and defective interfaces with extensive chemical intermixing. Widths smaller than 5 nm, which are needed for quantum confinement effects and quantum-well applications, have not been achieved. We demonstrate the growth of sub-2-nm quantum-well arrays in semiconductor monolayers, driven by the climb of misfit dislocations in a lattice-mismatched sulfide/selenide heterointerface. Density functional theory calculations provide an atom-by-atom description of the growth mechanism. The calculated energy bands reveal type II alignment suitable for quantum wells, suggesting that the structure could, in principle, be turned into a "conduit" of conductive nanoribbons for interconnects in future 2D integrated circuits via n-type modulation doping. This misfit dislocation-driven growth can be applied to different combinations of 2D monolayers with lattice mismatch, paving the way to a wide range of 2D quantum-well superlattices with controllable band alignment and nanoscale width.
Chem. Mat., 30 (8), pp. 2742–2749, 2018, ISSN: 0897-4756, (WOS:000431088400030).
To bridge the gap between laboratory research and commercial applications, it is vital to develop scalable methods to produce large quantities of high-quality and solution-processable few-layer phosphorene (FLBP). Here, we report an ultrafast cathodic expansion (in minutes) of bulk black phosphorus in the nonaqueous electrolyte of tetraalky-lammonium salts that allows for the high-yield (textgreater80%) synthesis of nonoxidative few-layer BP flakes with high crystallinity in ambient conditions. Our detailed mechanistic studies reveal that cathodic intercalation and subsequent decomposition of solvated cations result in the ultrafast expansion of BP toward the high-yield production of FLBP. The FLBPs thus obtained show negligible structural deterioration, excellent electronic properties, great solution processability, and high air stability, which allows us to prepare stable BP inks (2 mg/mL) in low-boiling point solvents for large-area inkjet printing and fabrication of optoelectronic devices.
Chem. Soc. Rev., 47 (9), pp. 3100–3128, 2018, ISSN: 0306-0012, (WOS:000431739100005).
Two-dimensional (2D) transition metal dichalcogenides (TMDCs) have been considered as promising candidates for next generation nanoelectronics. Because of their atomically-thin structure and high surface to volume ratio, the interfaces involved in TMDC-based devices play a predominant role in determining the device performance, such as charge injection/collection at the metal/TMDC interface, and charge carrier trapping at the dielectric/TMDC interface. On the other hand, the crystalline structures of TMDCs are enriched by a variety of intrinsic defects, including vacancies, adatoms, grain boundaries, and substitutional impurities. Customized design and engineering of the interfaces and defects provides an effective way to modulate the properties of TMDCs and finally enhance the device performance. Herein, we summarize and highlight recent advances and state-of-the-art investigations on the interface and defect engineering of TMDCs and their corresponding applications in electronic and optoelectronic devices. Various interface engineering approaches for TMDCs are overviewed, including surface charge transfer doping, TMDC/metal contact engineering, and TMDC/dielectric interface engineering. Subsequently, different types of structural defects in TMDCs are introduced. Defect engineering strategies utilized to modulate the optical and electronic properties of TMDCs, as well as the developed high-performance and functional devices are summarized. Finally, we highlight the challenges and opportunities for interface and defect engineering in TMDC materials for electronics and optoelectronics.


John Roger Shankly Hynd, born Falkirk. Central defender. Brought in on loan from Birmingham by Mick Brown, who wanted to keep him on as player-coach, but the board wouldn't let him. Died from cancer on 18th February 2017.


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Q: Does nginx upstream server compress response data before it sends back to midstream server? Here is my situation, browsers send http requests to my reverse proxy nginx server, my reverse proxy nginx server then ask upstream server for response, I was wondering whether upstream server will check if request header has "Accept-Encoding:gzip" and compress response data or just send raw data back to my reverse proxy nginx server?
Because when I use tcpdump to capture http response from upstream server to my nginx server,
I could see so much raw data there.

redpajama_set_name: RedPajamaStackExchange


Toshi Reagon is a talented, versatile singer, composer, musician, curator and producer with a profound ear for sonic Americana–from folk to funk, from blues to rock. While her expansive career has landed her comfortably in residence at Carnegie Hall, the Paris Opera House & Madison Square Garden, you can just as easily find Toshi turning out a music festival, intimate venue or local club. Toshi knows the power of song to focus, unite and mobilize people. If you've been lucky enough to be in Toshi's presence, you know you can't walk away from her without feeling better about yourself as a human being. She aims for nothing less. Toshi has been the recipient of a NYFA award for Music Composition, She co- composed music for two Peabody award winning films, The Black Lily Music and Film Festival Award for Outstanding Performance. She is a National Women's History Month Honoree, and is the 2010 recipient of OutMusic's Heritage Award. Her collaborators include Lizz Wright, Chocolate Genius, Robert Wilson, Ani DiFranco, her band BIGLovely and her mother Bernice Johnson Reagon www.toshireagon.com Toshi's current touring projects include "Celebrate The Great Women of Blues and Jazz" A 16 piece all women's ensemble of some of New York's best Instrumentalist and vocalist. The Opera, " Zinnias- The Life of Clementine Hunter". Directed by Robert Wilson. Libretto and Music by Bernice Johnson Reagon and Toshi Reagon, Book by Jacqueline Woodson. "The Blues Project" A Collaboration by Dorrance Dance and Toshi Reagon and BIGLovely .


The PTC Innovation Awards–open to PTC members and non-members–are designed to recognize the individuals and companies that have transformed and continue to transform our industry and the markets we serve.
Winners are announced at the Innovation Awards Gala.
Recognizing sustained innovation over a lifetime in network-centric ICT.
Recognizing innovation in network-centric ICT services and applications in the last 12 months.
Recognizing the best innovation in telecommunications and network-centric information technologies over the course of the four decades of PTC's history.
Recognizing the regulation, de-regulation, or regulatory reform that has best facilitated the deployment of ICTs for the people of the Pacific Rim within the last 12 months.
Government ICT regulators within the Pacific Rim, or those adopting regulation affecting the Pacific Rim, and multinational standards development organizations (SDOs), e.g., W3C, IETF, IEEE, 3GPP, etc.
Recognizing the most innovative progression in networking technology in the last 12 months.
Recognizing the company or entity that has successfully launched a telecommunications product or network-centric ICT application that has had the most outstanding impact on improving the quality of life for people in the Pacific Rim.


On paper it looks like one of those strategic agreements that large companies sign-up with small startups. But if you look close enough, you will find that by forging a partnership with Santa Barbara, Calif.-based Infrastructure as a service (IaaS) provider, Eucalyptus Systems, Amazon.com's (s AWS) web services division is making a masterful move to dominate the cloud market. As part of the agreement, Amazon will allow Eucalyptus to use its "api" to connect Amazon's cloud services with the private clouds set-up by large companies.
….an agreement that enables customers to more efficiently migrate workloads between their existing data centers and AWS while using the same management tools and skills across both environments. As part of this agreement, AWS will support Eucalyptus as they continue to extend compatibility with AWS APIs and customer use cases. Customers can run applications in their existing datacenters that are compatible with popular Amazon Web Services such as Amazon Elastic Compute Cloud (Amazon EC2) and Amazon Simple Storage Service (Amazon S3).
Marten Mickos, CEO, Eucalyptus Systems @ the Future of Cloud panel at Structure 2011.
Eucalyptus CEO Marten Mickos who happened to be in New York met with me briefly (I am at our Structure Data conference) and the beaming smile on this said it all. It was clearly a big shot in the arm for his company that started to face competition from many different quarters including the strong efforts of the Open Stack companies.
While the idea of a hybrid crowd cloud– one that marries public clouds such as Amazon Web Services with private or company owned clouds – has gained popularity, Amazon has been steadfast in its views on what it deems to be the cloud. The Seattle-based retailer believes that cloud is essentially what it sells as S3, EC2 and other related services.
However, Amazon might be softening its stance in small doses. Before today's news, in Janauary 2012 the company announced Storage Gateway, a way to fuse on-premise storage with its S3 service. A month later, the company announced Simple Workflow Service (SWF) that blurred the boundaries between applications that ran on internal clouds and Amazon's public cloud.
Not at all and we believe that over time, most enterprises will not run their own datacenters and those that do will have a much smaller footprint. That said, many enterprises today have legacy applications and a good deal of investment in those legacy applications. This type of arrangement provides the added flexibility to more freely move workloads between those existing IT environments and AWS.
Amazon says that "a typical scenario for using this service could be a corporation that uses AWS for disaster recovery and who will need to move workloads between AWS and Eucalyptus frequently for testing purposes." Other scenarios include companies tapping AWS infrastructure in case of spike in demand for an application that resides on Eucalyptus.
When I think about the news, the message is pretty clear: Amazon will do whatever it takes to keep growing its lead in the "cloud" market, even if it means partnering with private cloud providers such as Eucalyptus.
SEATTLE, WA. – March 22, 2012 – Amazon Web Services LLC (AWS), an Amazon.com company and the leader in cloud computing (NASDAQ: AMZN), and Eucalyptus Systems, a provider of on-premises Infrastructure as a Service (IaaS) software, today announced an agreement that enables customers to more efficiently migrate workloads between their existing data centers and AWS while using the same management tools and skills across both environments. As part of this agreement, AWS will support Eucalyptus as they continue to extend compatibility with AWS APIs and customer use cases. Customers can run applications in their existing datacenters that are compatible with popular Amazon Web Services such as Amazon Elastic Compute Cloud (Amazon EC2) and Amazon Simple Storage Service (Amazon S3).
This is a good announcement, thanks for writing about this Om. This is good news not only for businesses with legacy, its also good news for people contemplating starting a startup i.e. those about to begin a journey, Tabidachi 旅立ち. Now one can be much more confident about beginning on a path (particularly the API learning curve) by taking baby steps on one's own bare metal, even in the comfort of their own SoHo, without having to start out as an AWS tenant where AWS is the landlord! Also, this is good news because it will challenge the OpenStack group. Such challenge is healthy and pushes the world forward!
Great to see Amazon partnering their way toward greater enterprise cloud adoption. Enterprise-focused SaaS applications are the next area to watch for potential partnerships.
The press release was emailed to me via Amazon PR and I was told: Thursday, May 22 at 12.01 pst was the embargo. So I went with that and actually talked to Amazon.
I am not in the habit of pre-announcing things and breaking embargoes. I am not sure why Amazon hasn't released this news to other reporters or put it on the news wires just yet.
I think overall this deal is leading the industry down the wrong road. It would be much better for the industry to bring amazon to the open cloud, than to add yet another company to the private locked in cloud. The difficulty is right now there is too much innovation occurring in the space to expect a strictly open environment. The question is not whether the future of corporate IT is the cloud, it is. The question is whether the future of the cloud is open, and this is one blow against competition.
Thanks POE. Appreciate the catch here.


HomeAbout UsSuccess StoriesDo your research and select the best surgeon possible – like I did.
Do your research and select the best surgeon possible – like I did.
In 2010 and early 2011 my arthritic right hip finally forced me to give up or cut back on a lot of the activities I loved–competing in triathlons with my son, winter hiking on snowshoes, and barefoot water skiing.
In addition, snow skiing, slalom water skiing, and just plain walking without limping became problematic. As I researched hip resurfacing and found Dr. Gross, I began to have hope for the resumption of a lot of the activities, but I must admit I was skeptical when Dr. Gross told me I could resume ALL of my prior activities, even barefoot water skiing. I had the surgery in October 2011 and my recovery went very well–the hardest part was holding back from TOO much activity.
I was able to resume slalom water skiing in the summer of 2012 and snow skied extensively in the winter of 2012 / 2013. Although I only run occasionally now, I do cycle extensively and have resumed hiking as well.
During a summer vacation in July of 2013, my 23-year-old son challenged me to barefoot ski again–an activity I had dropped several years ago. I was able to get up "long-line" on the first attempt! The hip was fine; the rest of my body and muscles were sore, though.
For anybody contemplating a resurfacing operation, I would encourage you to do your research and select the best surgeon possible – like I did.


Personal Care There are 5 products.
Formulated with the best natural ingredients that your little one deserved. The combination of totarol, xylitol and the finest beneficial oils of peppermint and eucalyptus help you safeguard your child's oral health. the toothpaste is sweetened with fruits concentrate and was free from any harsh and harmful chemicals.


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Keyword Analysis & Research: nih reporter funding
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You'll get a list of projects funded by NIH Institutes and Centers (ICs) or certain other agencies, with the most recent projects listed first. To see information about a project in your search results list, click on the title of the project. You'll see extensive information, including:
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NIH Awards by Location & Organization Explore year-by-year NIH funding by institution, state, congressional district, and more! Data as of 10/04/2021. Frozen FY 2021 data are planned for release by 12/31/2021. These data will include R&D contracts, fellowships, other grant awards not yet past their budget start date.
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Search Results related to nih reporter funding on Search Engine
RePORT 〉 RePORTER - National Institutes of Health
https://reporter.nih.gov/
Welcome to the new NIH RePORTER. Rebuilt from the ground up, leveraging the latest technologies, to bring you an enhanced experience. Faster performance, mobile ready, and an intuitive, all-new Quick Search brings the power of NIH RePORTER to your fingertips. Guided Tour Feedback.
Funding | RePORT - National Institutes of Health
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The NIH funding data consists of an expansive reporting and information knowledge base. Located here are data on everything from success rates to historical NIH spending categories, from extramural grant and contract award statistics to NIH budget appropriations and levels of spending by budget mechanisms.
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The RePORT Expenditures and Results (RePORTER) module allows users to search a repository of NIH-funded research projects and access publications and patents resulting from NIH funding.
NIH RePORTER | Office of Behavioral and Social Sciences
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NIH RePORTER NIH RePORTER is an electronic tool that allows users to search a database of NIH-funded research projects and access publications and patents resulting from NIH funding. To find behavioral and social sciences-related items, type "behavior," "social science," or other related terms in the Text Search box provided.
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Jun 25, 2021 · Table Published: June 25, 2021. The table below displays the annual support level for various research, condition, and disease categories based on grants, contracts, and other funding mechanisms used across the National Institutes of Health (NIH), as well as disease burden data published by the National Center for Health Statistics (NCHS) at the Centers for …
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As a result, every year there may have been a small number of organizations that received NIH funding but appear in this table as having "0" (zero) awards. These data do not include projects funded by the American Recovery and Reinvestment Act of 2009. For a list of those projects, please visit https://report.nih.gov/recovery.
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Grants (DP2s need to have initial award in 2013 or 2014) 1. To identify R01, R37 and SC1 grants conferring eligibility to apply for an established PI MIRA for both the January and May 2018 receipt deadlines, go to NIH RePORTER, I. enter …
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NIH RePORTER is an electronic tool that allows users to search a database of NIH-funded research projects and access publications and patents resulting from NIH funding. To find behavioral and...
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redpajama_set_name: RedPajamaCommonCrawl


What is normal? For Trevor, normal was playing fast guitar licks, catching game-winning passes, and partying all night. Until a car accident leaves him with no band, no teammates, and no chance of graduating. It's kind of hard to ace your finals when you've been in a coma. The last thing he needs is stuck-up Everly Jenkins as his new tutor, those beautiful blue eyes catching every flaw.
This achingly beautiful story about two damaged teens struggling through pain and loss to redefine who they are, to their family, to themselves, and to each other is sure to melt your heart.


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Dustin Marzalek, Director and Shareholder
|In Blog
|By Liz
In 2010, Dustin joined Dome Construction and since then his road to the Director role has been an exciting journey to watch.
Dustin's interest in construction was sparked by his father, who owned a successful hardwood flooring design company. This was where Dustin spent his summers on his hands and knees before college working as a Master Craftsman. The business side of Dustin comes from his stepfather who owned a personal injury law practice. Dustin's curiosity about the world and his desire to learn comes from his Mom who was an elementary school teacher. Dustin attended California State University, Chico, where he received his Bachelor of Science in Construction Management. During college, and after graduation, Dustin interned for a couple of General Contractors where he worked on sizable Bay Area projects—the Transit Village at The Pleasant Hill Bart Station, and the Renovation of Highway 101 in Burlingame—upwards of $120M each.
When Dustin joined Dome, he began his career as a Project Engineer on the Life Science team. It was during these first few years with Dome that Dustin learned the intricacies of Life Science building and working with some of Dome's valued clients, BioMarin, Novartis, and Genentech. Eager to help make Dome into the company it is today, Dustin quickly got involved in revamping Dome's college recruiting program at Chico to invest in Dome's future. It was then in 2013, that Dustin was promoted to a hybrid role—Project Manager and Estimator. This new role was one that gave him the ability to combine the two aspects he loved, all while leveraging his knowledge at different aspects of the project lifecycle. The following year, Dustin started to make a push for his group to reenter the Downtown San Francisco Commercial Interiors market—an untapped market full of opportunities for Dome.
2015 was a pivotal year for Dustin. It was the year he opened Dome's San Francisco office, graduated from the University of San Francisco with a Master's in Business Administration and it was the same year he was promoted to Associate Director. While holding the title of Associate Director these past 5 years, Dustin has been involved in several strategic initiatives and high-profile projects. Dustin's focus on his team and building lasting relationships has always been a priority and is something we will continue to see from him as he enters his next role.
As Director, he is excited to help take Dome to the next level with a focus on delivering value to our clients and community while building a culture where people can thrive and grow personally.
When Dustin isn't working, you can find him traveling around the world with his girlfriend, Jessika. And if he isn't traveling, you'll find him in the kitchen, testing out a new recipe he enjoyed during one of their many travel adventures.
We interviewed Dustin to learn more about who he is and to get a better understanding of what he's looking forward to in his new Role.
What brought you into the construction industry?
Doing hardwood floors with my Dad growing up. I knew I wanted to be in the industry and Construction Management at Chico was the best decision I ever made.
What was your first impression of Dome?
That Dome was full of people with good morals and that it was a family vibe.
What do you like most about the company and your job?
The culture at Dome is great. I love the team I work with, we're so fortunate to have so many amazing individuals. I've never been surrounded by so many hard-working, smart, funny, and caring people at a company than Dome.
Getting to work with amazingly talented and fun to be around team. My goal is to surround myself with friends. If all our clients, architects, trade partners, and coworkers are all friends, then going to work is not going to work – it's going to hang out with friends.
Stay in contact with all of your project contacts, Owners, Architects, Engineers, Construction Managers, Brokers, etc. Its easy to get caught up in the weeds of a project and before you know it, 6 months to a year has gone by and it's easy to lose touch with people. Building relationships is everything.
What has been the best piece of advice someone has given you?
If you want to get ahead, work hard – have a first in, last out of the office mentality. Use your strengths to help others and make your team better.
Dome is a unique place. It's a company where people's ideas are heard and if appropriate, implemented. Dome was a different kind of company when I started 10 years ago and it has been really fun to be able to throw ideas against the wall and have some stick. Along the same lines of opportunity for improvement, the sky is the limit at Dome and its inspiring to help others grow and reach their career objectives.
Tell us about a project or accomplishment that you consider to be the most significant in your career.
Opening the San Francisco office and making a big push back into the commercial interiors market was a big challenge and accomplishment for our team and myself personally. At the time, I was estimating full time, going to grad school at USF from 6-10 pm every night with team meetings every weekend, all while at the same time trying to open the SF Office and drum up enough business to sustain and grow the team. It was a grind but hard work, dedication, and perseverance paid off.
What might someone be surprised to know about you?
I'm an introvert and I'm actually shy. I can be nervous to meet new people at first but once I get to know people I really open up.
What is your favorite food?
Pizza, I LOVE pizza! Little Star deep-dish on Divis is my vote for the best pizza in the states.
Fun fact about yourself!
I love to cook. It's a creative outlet for me after a long day. I love trying recipes from all cultures of food. My favorite thing to do is travel abroad, find dishes I like, and try to recreate them once I'm back home.


The Nursing Home Leadership Coaching service is a cooperative service between MU Sinclair School of Nursing and the Missouri Department of Health and Senior Services. The service assists nursing home administrators and other key operational leaders deal effectively with the complex management issues associated with business and personnel operations.
Our Nursing Home Leadership Coaches are able to assist with such things as Operational Improvement, Corporate Compliance, Budget Analysis, Regulations, Process Improvement, Leadership Skills, Staff Retention, Contract Review, Survey Readiness, Staff Training, Quality of Life, and Culture Change. Coaching is tailored to meet individual administrator needs within the context of each person's unique operational situations as well as within the variety of corporate and business models in Missouri. The Leadership Coaching service is funded by the Missouri Department of Health and Senior Services.


Our bodies are the interface between the seen and the unseen, they are the mechanism that allows all of our physical sensations to be 'felt', yet how often do we contemplate the true power of our bodies? How often do you listen to your gut feelings? Do you go with them or allow your mind to talk you out of it? ...read more.
Can What You Eat Affect Your Emotional Wellbeing?
Absolutely! We're all well aware of the links between the foods we eat and the physical health of our bodies; too much sugar, fat and highly processed foods put us at increased risk of numerous medical conditions. What you may not be aware of is how what you eat can impact the way you feel. ...read more.
For many of us stress is a regular factor in our lives and we shouldn't underestimate the toll it takes on our mental and physical health. ...read more.
To be sustainable changes to our lives need to be implemented in an evolutionary, not revolutionary way. That's not what we typically try to do though is it? Typically, we are unhappy with some aspect(s) of our lives and we let it continue to fester until we reach a tipping point, and then try and make multiple radical changes all at once. We give our bodies no time to adjust, so end up injured, sick and/or suffering from dreadful cravings. As a result, within a few weeks or months we tend to be right back where we started thinking "it's too hard to change, there's no point in trying". ...read more.
Trauma comes in many varied shapes and forms and varying levels of severity. It might be an accident, a medical diagnosis or the death of a friend or family member. One of the most challenging things about any trauma is that it can affect us in unexpected ways. ...read more.
Nietzsche told us, "That which doesn't kill us makes us stronger", but is this really true?
We see and hear many stories of people who have triumphed over adversity and gone on to do great things with their lives. But if we asked a sample of people who have suffered loss, hardship or serious illness we would likely find that in many cases they haven't ended up feeling stronger as a result of their ordeal. The endemic use of anti-depressants worldwide also attests to a lack of automatic gain in strength from facing adversity. So if gaining strength from adversity isn't a given then how does it happen? ...read more.
The starting point is within. That is where, in conjunction with shared reality, we create our individual reality. But too often we search outward first. We need only tap into this power that is already within us in order to benefit and grow. This includes being able to direct the focus of that power onto specific issues…let's examine this using the example of weight loss.
We have been conditioned to think that when we want something we need to start in the outer world first. In the case of weight loss the very first things we would typically do are start exercising and/or go on a diet. What usually happens is that we may lose a bit but it all feels too hard and we don't really enjoy it, the results don't come quickly or easily enough and our enthusiasm begins to wane. ...read more.
The mind and body are inextricably linked to each other. Our thoughts impact our body in many ways, but in particular negative thinking has been proven to actually lower the immune system; literally we can think ourselves sick. That's the power of the mind and one aspect of its wide scope, and there is no doubt of the mind's influence over the body. But the flip side of this is we can also use our bodies to influence our minds: we have an ally in our consciousness expansion efforts and it is very powerful indeed. ...read more.


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Confessions of a Touring Musician: Band Members for Beyonce, Chainsmokers and More Talk Life on the Road, Being Recognized & Gaining Followers
Billboard had a chance to talk to some of the industry's most in-demand touring musicians to learn secrets of being on the road.
By Kristin Corpuz
Kristin Corpuz
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The Chainsmokers, Beyoncé & Camila Cabello Getty Images; AP Photo
Everyone knows who Beyonce, The Chainsmokers, and Fifth Harmony are — and pay enormous amounts of money to see them live — but seldom do audiences know the names of the instrumentalists behind the artists who make the shows possible.
Billboard had a chance to talk to some of the industry's most in-demand touring musicians to learn secrets of being on the road, including Ashlee Juno a.k.a. JUNO (guitarist for Camila Cabello, Fifth Harmony, Machine Gun Kelly), Arnetta Johnson (trumpeter for Beyonce), Tony Ann (keyboardist for The Chainsmokers), Angie Swan (guitarist for Fifth Harmony, Nicole Scherzinger, Will.I.Am), Francesca Simone a.k.a. Simone (guitarist for Beyonce), and Michel'le Baptiste (drummer for Fifth Harmony, Beyonce).
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Am I outa my head am I outa my miiiiiiind –??–?? ——@camila_cabello #24kmagicworldtour
A post shared by JUNO —— (@ashleejuno) on Jul 24, 2017 at 11:33am PDT
How did the artists you play for find you?
Juno: Early last year I started posting videos on Instagram in hopes of getting discovered by a major artist for a tour. One day out of nowhere, I received a DM from [producer] Rob Lewis asking if I wanted to tour with Fifth Harmony. I sold almost everything I owned and packed up my whole apartment in 3 days to go on the road with them. After doing 2 tours with them, I started getting calls to work with other artists.
Ann: The Chainsmokers found me on YouTube. In 2016, I did a lot of covers and wanted to find some new music and stumbled across [their hit song] "Roses." I loved the song so much, I decided to do a cover of it — but I love doing medleys more than single songs, so I [looked through more Chainsmokers songs and loved] "Don't Let Me Down" as well, [so I arranged] a mashup of the two.
Swan: I've gotten most of the gigs through word-of-mouth, from peers or colleagues recommending me. I've auditioned many times as well, via invite or a "cattle-call" — meaning countless people could come to the audition, and I would literally stand in line for hours for a 5-to-10-minute audition.
??Rehearsal shots??with the QUEEN @beyonce and EVER SO DOPE @katrodriguezmusic ————
A post shared by Arnetta Johnson (@thattrumpetchic) on Oct 18, 2016 at 10:12am PDT
How often did those artists post about/tag you on their artist or personal social media accounts?
Johnson: It depended on the artist. Sometimes, behind the scenes photos would be posted on Instagram or on their websites. Afterwards, tons of my friends would see the pictures and go on tagging sprees, and there were times I'd be caught on Instagram or Snapchat stories. When I toured with Terri Lyne Carrington, there would be some pretty amazing pictures floating around from various stops we made in Europe.
Juno: While on tour, the artists would post about us maybe once a week. They would post clips of us in rehearsal or on the bus just goofing around and having fun. It was always super casual and random. They posted a lot on Snapchat and sometimes even on Instagram.
Baptiste: I am frequently tagged on social media by Fifth Harmony — these posts are permanent, and also temporary Snapchat, Instagram, and Twitter stories. We're constantly on the road, so you would catch us clowning on our down time or see videos of us performing.
Ann: [They posted about me] pretty often on their Instagram story. Before the tour, they shared a few of my covers — which they always tagged me in — on Facebook. During the tour, I showed up a few times on their Instagram stories and Snapchats, which they also tagged me in.
♥?
A post shared by Michel'Le Baptiste (@miche11_) on Jun 24, 2017 at 3:18pm PDT
How have the fans of those artists engaged with you on social media?
Baptiste: The fans of these artists often engage with me on social media by commenting on pictures, liking videos, and also direct messaging. I've experienced a lot of support through social media from them of these various artists. The fans want to know what's new, if there's anything they can help promote; they want to feel included. They're drawn to me because of the relationship I have with the artist, and they stay connected because they relate to the person I am through my social media.
Juno: They are super sweet and supportive. No matter what I post, they are always commenting and showing love. I think it's really cool how involved and interactive they are. They love the artists so much, and they love [me] just because [I am] connected to them! They also crack me up because they don't seem to miss a heartbeat, I sometimes wonder if they ever sleep! They are adorable and honestly they're the best!
Happy Belated to this one. #21
A post shared by Angie Swan (@theangieswan) on Jun 28, 2017 at 9:41am PDT
Swan: I recall when I joined Fifth Harmony's band, Lauren Jauregui [hinted] to me that once she started following me on Instagram, my fan base would grow exponentially, and it did. My followers grew from 1,000 to about 8,000 overnight. My inbox was full of messages from people, welcoming me to the Fifth Harmony family. It was a little strange, since I'm about 15 years older than most of the fans, let alone the rest of the band and girls of Fifth Harmony.
In any of these situations, there are always those megafans that are following you just to get the inside scoop of the artist you're working with. Fans would ask me personal questions about the artist(s) I was working with. It is my job to perform the music and put on a great show, not tell the fans how the artist likes their eggs in the morning.
I noticed that when I left Fifth Harmony, I lost about 1,000+ followers on Instagram. I really appreciate the ones that stuck around and acknowledge the hard work that musicians put in behind the scenes in order to promote the artist. I also appreciate the fact that they realize that I, as a "hired gun," don't work exclusively for one artist or group. In general, being a touring musician is not an occupation that pays a livable wage anymore, so you find value in different ways. it's very valuable to have a growing fan base and support for your own personal projects that may come in the future.
How often are you recognized off stage?
Swan: In some instances, fans would recognize band members off stage. Especially when touring with Fifth Harmony, each airport we went to, there were fans there waiting for us. They actually knew the band members' names. In one city, they actually knew the names of our stage hands and my guitar tech — he got a kick out of it.
Juno: It all depends! I get recognized a lot after shows, obviously, because they just saw me on stage. But sometimes I randomly get recognized at the store, or the beach, or even the airport. A fan will come up to me and ask to take a picture with them or say, "Oh my gosh, you're Camila's guitarist?!" Usually I say yes, but one time I lied because I looked CRAZY, and I just said "Who is Camila?" [Laughs.] But it's kind of hard to hide who I am, because I have blonde dreadlocks with the side of my head shaved.
—-I'm so proud of this girl …This tour is about to be INSAANE———-#RideOrDie
A post shared by JUNO —— (@ashleejuno) on Jul 9, 2017 at 12:45pm PDT
Johnson: It doesn't happen too often, but every now and then when I go out to a jam session, or if I'm just on the bandstand, someone will recognize me from social media. They always mention a video, an article they read, or picture where they saw me. There was one time where I was in the airport watching a movie, and someone recognized me from a video they were watching as they were walking.
What's your craziest fan interaction story?
Johnson: I'd say it was the time I went to visit a friend in Boston. We were on the way to get something to eat and this guy stopped us and was like "OH. MY. GOD. Are you Arnetta?!" Then he FaceTimed his friend, and she screamed like crazy. Of course I laughed, because I'm not use to people being a "fans." They went to tell me how they loved my single "Juice & Candy" and how they're always inspired by my social media posts. I wouldn't call the interaction crazy but it was definitely an experience to remember.
Swan: I have too many to pick just one. Most recently though, we had fans that followed us from Japan to China while on the Asia tour with Fifth Harmony. Or better yet, when in Guatemala, one of the fans used my name specifically to try and get in through security gate. I was very nervous about that, as that was only my second show with Fifth Harmony, and I did not want to get in trouble with management. To this day, I have no idea who did it!
Simone: My favorite moment with a fan was at an event for Step Up, an organization whose mission it is to encourage high school girls to attend college. I gave a presentation, and afterwards, I played and sang a cover and an original song. When I finished playing, many of the girls asked me questions while we took pictures.
There was one girl in particular who hugged me for at least a full minute. After we hugged, I realized she was crying. With tears streaming down her face, she said that my performance was beautiful and she wanted to play guitar and sing just like me. I almost started crying too! Twelve years ago, I was that girl, crying at a Carlos Santana concert because his music moved me and made me want to play the guitar. Realizing that I had become the person to inspire others was so fulfilling, and truly a dream come true.
Don't let me get in my zone ??????
A post shared by Simone (@francescasimone) on Jul 12, 2016 at 4:23pm PDT
Juno: I'll never forget when I was in Mexico City, right after a show, I stepped out to make a call and the door locked behind me so I had to try and find another door. I saw a bunch of fans outside, and didn't realize they had seen me. When I turned back around I felt like Simba in The Lion King when he got chased by that stampede! [Laughs.] I ran for my life because I had never seen so many humans running at me like that. This girl ran up to me and said "Ashlee, this way!" She grabbed my hand and sprinted off, leading me to a parking garage. I followed her because I thought she was a security guard, but it turns out, she was just another fan. She led me to a safe place, and she probably low-key saved my life!
What's your favorite memory from being on the road?
Simone: My favorite moment on tour was playing solo on stage for the first time in front of an audience of 36,000 people at Marlins Park in Miami. Prior to playing for Beyonce, my largest audience was about 500. She gave me the opportunity of a lifetime when she let me play an interlude solo during her costume change. I was super anxious before the solo — my heart was beating so fast, my hands and legs were shaking. But when I walked onto the main stage and played my first note, all my anxiety disappeared. When I heard the audience cheering for me, I almost lost it. My heart smiled. The more energy I gave the audience, the more energy they gave back to me. I had such a blast!
Ann: It has to be during the final show [of the Memories… Do Not Open tour] when the guys brought the band out on the catwalk for a group photo with the crowd. It was a very memorable moment because it was the last show. Everyone was super emotional and it was just the perfect way to end such an awesome tour.
Sharing the stage with you guys has been the greatest moment of my life so far. Forever grateful for this opportunity and will cherish the memories made in the past two months for the rest of my life. Thank you to everyone who has been a part of this tour, TCS team, the crew, and to everyone who came out to the shows .. thank you for the memories. I love you guys ?????? #mdnotour #chainsmokers #teamqualms #grateful #theend — @danilolewis
A post shared by tony ann (@tonyann_) on Jun 13, 2017 at 8:29am PDT
Johnson: I remember when I would take long bus rides to get back to school [from Philadelphia to Boston], and on each ride, I'd close my eyes and imagine myself being on the way to my first tour date. All this is to say, my favorite memory has to be when I took my first international flight and thought to myself, "I knew those long bus rides would pay off." It may seem minute to others, but it was such a full-circle moment for me.
Juno: Definitely touring Europe. I had never really been anywhere in the world, and I just remember being in a new country every other day. It was so surreal. That was the moment that it hit me, that everything I dreamed was happening. I couldn't believe I had made it to Paris, and I will never forget standing at the Eiffel tower thinking, "Man, I'm really here." It was the most amazing feeling in the whole world.
Baptiste: Being able to travel all over world and explore new cultures and make memories is such a blessing to experience. But by far, the best memories I have are the pranks we played on each other at the end of every tour. During the finale of the U.S. tour in 2016, one of the girls from Fifth Harmony thought it would be funny to throw a pie in my face. The best thing about pranks is, what goes around, comes back around!


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Brianna Osgood
Photograph of actors on set.
Brianna Osgood, Writer
JACKSONVILLE, Fla.—The lights dim, and actors run to their places as the final practice begins before the opening night.
The crew stands off to the side, watching with excitement and anticipation.
"This is a professional piece of theater through and through, and my heart sings for people to enjoy it the way that I do," Swisher Theater Director Erik DeCicco says as he watches from off stage.
Jacksonville University's theater department begins its 2021 season with the play Metamorphoses written by Mary Zimmerman and performed at the Swisher Theater.
Photograph of actors on set. Courtesy of Brianna Osgood.
"The premise behind the show is metamorphosis," DeCicco said. "It's based on Ovid's original Greek poems, and they have been reworked into vignettes about Greek gods that people will be familiar with. Some characters they might not be familiar with, but each of their story's centers around change."
According to Metamorphoses: The Play, the scene is positioned in and around a large pool on the stage; the characters enact Zimmerman's adaptations of Ovid's tales, juxtaposing the ancient and the contemporary in both language and image. The show contains adult subject matter, including alcohol abuse, sexual intimacy, and other charged issues and concepts.
The crew and cast have been working on production through the summer and five times a week for the last six weeks. DeCicco says he challenged his students in 2020, most of whom were sophomores at the time, to pick a show that would become their senior project. He wanted them to work on something that they would be proud of.
Jeremy Ferri, a Junior at JU and cast member, says he enjoyed working on the show with the director and fellow castmates.
"Preparing for the opening night has been enjoyable and fast pace," Ferri said.
Ferri plays a few different characters in the show, including Cexy, Orpheus, Apollo, A, and Philamom.
"The casting process was complicated because our students are insanely talented," DeCicco said. "Every actor plays multiple characters, so because they are so talented, it took a lot of thought and energy in the selection process."
When asked why should his fellow students attend the play, Ferri answered with the utmost passion and enthusiasm.
"It's not Shakespeare and boring," Ferri said. "It's more mythology and entertaining. It tells a story you want to listen to. It's ghost telling the tale of their lives!"
Metamorphoses showtimes are September 24 and 25 at 7:30 pm and the 26 at 2 pm. The show runs a full 75 minutes without intermission. It is strongly advised to get comfortable before seating. The audience sits on stage as the cast performs. They become part of the story making process which makes the audience feel involved.
DeCicco says the play is geared towards an adult audience due to many themes and contexts not suitable for children or those under 18. Admission for the general public is $10. If you are a student or faculty member admission is free.
"It's a labor of love, and I think everyone will see and feel that in the production," said DeCicco.
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