bluuebunny/crossref_metadata_2025 huggingface dataset:
Gene Expression analysis associated with salt stress in a reciprocally crossed rice population
Authors: Razzaque Samsad , Elias Sabrina M. , Haque Taslima , Biswas Sudip , Jewel G. M. Nurnabi Azad , Rahman Sazzadur , Weng Xiaoyu , Ismail Abdelbagi M. , Walia Harkamal , Juenger Thomas E. , Seraj Zeba I.
Published: June 2019

The rice landrace Horkuch, endemic to the southern saline coast of Bangladesh, is known to have salt tolerance traits and can therefore contribute to a high yielding recipient for breeding purposes. In this study, we reciprocally crossed Horkuch with high yielding but salt sensitive IR29 to detect the complement of genes that were responsible for conferring salt tolerance versus sensitivity at the seedling developmental stage. We looked at tolerant and sensitive F3families from individual F2segregating plants and analyzed them for differential gene expressions using RNAseq. In general, we observed higher numbers of genes differentially expressed in leaves compared to root tissues. This included both upregulation and downregulation of gene expression across our experimental factors. Gene expression decreased in sensitive leaf after stress exposure where tolerant plants showed the opposite trend. In root, tolerant plants expression decreased at higher time points of stress exposure. We also observed a strong maternal cytoplasmic effect on gene expression and this was most evident in roots where there was upregulation in functional enrichments related to phosphorylation, electron carriers, transporter and cation transmembrane activities. Stress groups (tolerant and sensitive) response in F3families were distinctive in both cytoplasmic backgrounds and involved uniquely upregulated genes in tolerant progenies including membrane sensor proteins, enzymes involved with signaling pathways, such as those producing trehalose and G-protein coupled receptor proteins, photosynthesis-related enzymes and golgi body recycling as well as prolamin precursor proteins involved in refolding of proteins. On the other hand, sensitivity was found to be associated with differential upregulation of only a few redox proteins and higher number of apoptosis related genes compared to the tolerant response. Overall, our highly replicated experimental design was powerful and allowed the detection of relatively subtle differential expression. Our future goal is to correlate these expression differences with QTLs in this population, which would help identify the relative importance of specific genetic loci and provide a direct avenue for combining higher levels of salt tolerance with better agronomic traits in rice.
Viral rescue of magnocellular vasopressin cells in adolescent Brattleboro rats ameliorates diabetes insipidus, but not the hypoaroused phenotype
Authors: Schatz K. C. , Brown L. M. , Barrett A. R. , Roth L. C. , Grinevich V. , Paul M. J.
Published: June 2019

Dysregulated arousal often accompanies neurodevelopmental disorders such as attention deficit hyperactivity disorder and autism spectrum disorder. Recently, we have found that adolescent homozygous Brattleboro (Hom) rats, which contain a mutation in the arginine vasopressin (AVP) gene, exhibit lower behavioral arousal than their heterozygous (Het) littermates in the open field test. This hypoaroused phenotype could be due to loss of AVP in magnocellular cells that supply AVP to the peripheral circulation and project to limbic structures or parvocellular cells that regulate the stress axis and other central targets. Alternatively, hypoarousal could be a side effect of diabetes insipidus – polydipsia and polyuria seen in Hom rats due to loss of AVP facilitation of water reabsorption in the kidney. We developed a viral-rescue approach to “cure” magnocellular AVP cells of their Brattleboro mutation. Infusion of a recombinant adeno-associated virus (rAAV) containing a functional Avp gene and promoter (rAAV-AVP) rescued AVP within magnocellular cells and fiber projections of the paraventricular nucleus of the hypothalamus (PVN) of male and female adolescent Hom rats. Furthermore, water intake was markedly reduced, ameliorating the symptoms of diabetes insipidus. In contrast, open field activity was unaffected. These findings indicate that the hyporaoused phenotype of adolescent Hom rats is not due to the loss of AVP function in magnocellular cells or a side effect of diabetes insipidus, but favors the hypothesis that central, parvocellular AVP mechanisms underlie the regulation of arousal during adolescence.
Catalase-linked immunosorbent pressure assay for portable quantitative analysis
Authors: Liu Dan , Liu Fang , Huang Yishun , Song Yanling , Zhu Zhi , Zhou Shu-feng , Yang Chaoyong
Published: June 2019

In this study, catalase-linked immunosorbent pressure assay with a gas-generation reaction was established for quantitative detection of disease biomarker C-reactive protein (CRP) by a portable pressuremeter.
Development of 2-aminoisobutyric acid (Aib)-rich cell-penetrating foldamers for efficient siRNA delivery
Authors: Misawa Takashi , Ohoka Nobumichi , Oba Makoto , Yamashita Hiroko , Tanaka Masakazu , Naito Mikihiko , Demizu Yosuke
Published: June 2019

We have designed and synthesized a set of cell-penetrating foldamers (CPFs), Blocks 1–8, composed of the common amino acids Leu, Arg, and Gly, as well as the helicogenic amino acid 2-aminoisobutyric acid.
Probing the existence of uranyl trisulfate structures in the AMEX solvent extraction process
Authors: Sukhbaatar Tamir , Duvail Magali , Dumas Thomas , Dourdain Sandrine , Arrachart Guilhem , Solari Pier Lorenzo , Guilbaud Philippe , Pellet-Rostaing Stéphane
Published: June 2019

Knowledge of the complex microstructure in solvent extraction phases is mandatory for a full comprehension of ionic separation. A tri-sulfate structure was evidenced with tertiary amines.
Intrinsic and well-defined second generation hot spots in gold nanobipyramids versus gold nanorods
Authors: Pardehkhorram Raheleh , Bonaccorsi Simone , Zhu Huihui , Gonçales Vinicius R. , Wu Yanfang , Liu Jingquan , Lee Nanju Alice , Tilley Richard D. , Gooding J. Justin
Published: June 2019

Well-defined second-generation hot spots in end-to-end assembled gold nanobipyramids exhibit sufficient enhancement of the plasmonic field for single molecule detection.
Fabrication of protonated g-C3N4 nanosheets as promising proton conductive materials
Authors: Wang Kangcai , Song Siwei , Zhang Qingfu , Jin Yunhe , Zhang Qinghua
Published: June 2019

Proton-conductive g-C3N4 nanosheets were prepared by a simple refluxing method, and exhibited surprisingly high proton conductivities reaching up to 1.44 × 10−2 S cm−1 at 80 °C and 98% relative humidity.
Boosting loading capacities of shapeable metal–organic framework coatings by closing the interparticle spaces of stacked nanocrystals
Authors: Wei Songbo , Liu Yan , Zheng Jiating , Huang Siming , Chen Guosheng , Zhu Fang , Zheng Juan , Xu Jianqiao , Ouyang Gangfeng
Published: June 2019

Herein, an intriguing strategy is presented for preparing monolithic metal–organic framework coatings through compactly filling up the interparticle spaces in the stacked architectures of nanocrystals.
Mechanism and regioselectivity of the anionic oxidative rearrangement of 1,3-diketones towards all-carbon quaternary carboxylates
Authors: Bratt Emma , Suárez-Pantiga Samuel , Johansson Magnus J. , Mendoza Abraham
Published: June 2019

The oxidative rearrangement of 1,3-diketones is an underexplored alternative to enolate chemistry in the synthesis of all-carbon quaternary carboxylates. Mechanistic understanding enabled the discovery of a faster and more effective reaction.
Enantioselective reduction of azaarene-based ketones via visible light-driven photoredox asymmetric catalysis
Authors: Qiao Baokun , Li Chunyang , Zhao Xiaowei , Yin Yanli , Jiang Zhiyong
Published: June 2019

An enantioselective reduction of azaarene-based ketones through photoredox asymmetric catalysis is reported.
Sensing and imaging of mitochondrial viscosity in living cells using a red fluorescent probe with a long lifetime
Authors: Chen Bochao , Li Chengde , Zhang Jie , Kan Jianfei , Jiang Tiantian , Zhou Jin , Ma Huimin
Published: June 2019

A red mitochondria-targeting probe (Mito-V) with a long lifetime for viscosity assay has been successfully applied to monitor the viscosity changes in the courses of apoptosis, inflammation, hyperglycemia and antifungal medication.
Simulations of infrared and Raman spectra in solution using the fragment molecular orbital method
Authors: Nakata Hiroya , Fedorov Dmitri G.
Published: June 2019

Calculation of IR and Raman spectra in solution for large molecular systems made possible with analytic FMO/PCM Hessians.
Surface phase diagrams of La-based perovskites towards the O-rich limit from first principles
Authors: Li Yang , Yang Jie , Zhu Yi-An , Sui Zhi-Jun , Zhou Xing-Gui , Chen De , Yuan Wei-Kang
Published: June 2019

A DFT study of surface phase diagrams of La-based perovskites in equilibrium with oxygen gas.
How flexible is the disulfide linker? A combined rotational–computational investigation of diallyl disulfide
Authors: Demaison Jean , Vogt Natalja , Saragi Rizalina Tama , Juanes Marcos , Rudolph Heinz Dieter , Lesarri Alberto
Published: June 2019

The symmetrically substituted diallyl disulfide adopts an asymmetric conformation in the gas phase, as observed in the rotational spectrum.
Boronic acids as building blocks for the construction of therapeutically useful bioconjugates
Authors: António João P. M. , Russo Roberto , Carvalho Cátia Parente , Cal Pedro M. S. D. , Gois Pedro M. P.
Published: June 2019

This review summarizes boronic acid's contribution to the development of bioconjugates with a particular focus on the molecular mechanisms underlying its role in the construction and function of the bioconjugate, namely as a bioconjugation warhead, as a payload and as part of a bioconjugate linker.
A tunable precious metal-free system for selective oxidative esterification of biobased 5-(hydroxymethyl)furfural
Authors: Kozlov Kirill S. , Romashov Leonid V. , Ananikov Valentine P.
Published: June 2019

Oxidative esterification of biomass-derived 5-(hydroxymethyl) furfural (HMF) and furfural and their derivatives has been performed using a simple MnO2/NaCN system.
Efficient transformation of CO2 to cyclic carbonates using bifunctional protic ionic liquids under mild conditions
Authors: Meng Xianglei , Ju Zhaoyang , Zhang Suojiang , Liang Xiaodong , von Solms Nicolas , Zhang Xiaochun , Zhang Xiangping
Published: June 2019

Bifunctional protic ionic liquids were prepared and they showed high activity for conversion of CO2 with epoxides at mild temperature (30–50 °C) and 1 bar CO2.
Rational design of a high-throughput droplet sorter
Authors: Schütz Simon S. , Beneyton Thomas , Baret Jean-Christophe , Schneider Tobias M.
Published: June 2019

The high-throughput selection of individual droplets is an essential function in droplet-based microfluidics.
Zinc(ii) centered biologically active novel N,N,O donor tridentate water-soluble hydrazide-based O-carboxymethyl chitosan Schiff base metal complexes: synthesis and characterisation
Authors: Murugaiyan Manimohan , Mani S. Pugal , Sithique Mohamed Aboobucker
Published: June 2019

In this study, novel eco-friendly and water-soluble chitosan Schiff base derivatives have been designed for potential use in antimicrobial applications.
Ultra-efficient room-temperature H2S gas sensor based on NiCo2O4/r-GO nanocomposites
Authors: Wu Jie , Yang Ying , Yu Hui , Dong Xiangting , Wang Tingting
Published: June 2019

NiCo2O4/r-GO nanocomposites were synthesized successfully; the sensor based on these nanocomposites exhibited a fast response and high selectivity towards H2S at room temperature.
Corncob-derived hierarchical porous carbons constructed by re-activation for high-rate lithium-ion capacitors
Authors: Sun Jing , Yang Shuhua , Yang Chao , Jia Qi , Yang Xiaopeng , Cao Bingqiang
Published: June 2019

Hierarchical porous activated carbons (HPACs) possess unique bimodal pore structures, containing micropores for charge storage and mesopores for ion migration.
Ion- and air-tailored micro-honeycomb structures for superior Na-ion storage in coir-derived hard carbon
Authors: Li Danting , Zhu Yi , Xu Enze , Wang Hui , Chen Taotao , Quan Junjie , Zhang Yan , Wang Li , Jiang Yang
Published: June 2019

Bio-carbon anode materials fabricated from coir fiber, featuring rich nanopore-decorated side-by-side holes, exhibit superior capacity and excellent cycling performance.
Synthesis of hybrid polycycles containing fused hydroxy benzofuran and 1H-indazoles via a domino cyclization reaction
Authors: Janardhanan Jith C. , James Kiran , Puthuvakkal Anisha , Bhaskaran Rasmi P. , Suresh Cherumuttathu H. , Praveen Vakayil K. , Manoj Narayanapillai , Babu Beneesh P.
Published: June 2019

A trifluoroacetic acid mediated [3+2] annulation reaction between 5-hydroxy-1H-indazoles – generated in situ – and p-benzoquinones has been reported.
Polyaniline nanorods random assembly on sugarcane bagasse pith-based carbon sheets with promising capacitive performance
Authors: Gao Kezheng , Zhao Shuyan , Niu Qingyuan , Wang Lizhen
Published: June 2019

Polyaniline nanorods are randomly stacked on the oxidized sugarcane bagasse pith-based carbon sheets by using the dilute polymerization methods, which exhibits excellent electrochemical performance.
Sensitive electrochemical sensor based on poly(l-glutamic acid)/graphene oxide composite material for simultaneous detection of heavy metal ions
Authors: Yi Wei , He Zihua , Fei Junjie , He Xiaohua
Published: June 2019

A novel electrochemical sensor with high stability and good reproducibility for the simultaneous detection of heavy metal ions was prepared by using PGA/GO to modify the GCE, showing high sensitivity of superior to most of the reported values.
Effects of magnesium hydroxide on the properties of starch/plant fiber composites with foam structure
Authors: Cui Jin-Feng , Li Fang-Yi , Li Jian-Yong , Li Jian-Feng , Zhang Chuan-Wei , Chen Shuai , Sun Xu
Published: June 2019

The process and the property of starch-based composite.
Surfactant-assisted microwave processing of ZnO particles: a simple way for designing the surface-to-bulk defect ratio and improving photo(electro)catalytic properties
Authors: Marković Smilja , Stojković Simatović Ivana , Ahmetović Sanita , Veselinović Ljiljana , Stojadinović Stevan , Rac Vladislav , Škapin Srečo Davor , Bajuk Bogdanović Danica , Janković Častvan Ivona , Uskoković Dragan
Published: June 2019

Employing CTAB in the microwave synthesis of ZnO particles enables improvement of their visible light absorption capacity and photo(electro)catalytic activity.
A label-free immunosensor based on PHEMA/graphene oxide nanocomposite for simultaneous electrochemical determination of alpha fetoprotein
Authors: Liang Ying , Zhao Xiaoqing , Wang Na , Wang Jing , Chen Hou , Bai Liangjiu , Wang Wenxiang
Published: June 2019

An electrochemical immunosensor based on poly(2-hydroxyethyl methacrylate) (PHEMA)/graphene oxide (GO) nanocomposite was designed in a simple way for the ultrasensitive detection of tumor makers (alpha-fetoprotein, AFP as a model).
Facile fabrication of amphiphobic surfaces on copper substrates with a mixed modified solution
Authors: Wang Ning , Wang Qing , Xu Shuangshuang , Zheng Xu , Zhang Mingya
Published: June 2019

Amphiphobic surfaces possessing superhydrophobicity, high oleophobicity and self-cleaning properties were facilely and efficiently fabricated with STA/PFOA mixed modified solution.
Multilayer structured AgNW/WPU-MXene fiber strain sensors with ultrahigh sensitivity and a wide operating range for wearable monitoring and healthcare
Authors: Pu Jun-Hong , Zhao Xing , Zha Xiang-Jun , Bai Lu , Ke Kai , Bao Rui-Ying , Liu Zheng-Ying , Yang Ming-Bo , Yang Wei
Published: June 2019

Integrating slippage and crack propagation points in a new direction towards highly sensitive and stretchable sensors for wearable healthcare.
Demonstration of an azobenzene derivative based solar thermal energy storage system
Authors: Wang Zhihang , Losantos Raul , Sampedro Diego , Morikawa Masa-aki , Börjesson Karl , Kimizuka Nobuo , Moth-Poulsen Kasper
Published: June 2019

Molecules capable of reversible storage of solar energy have recently attracted increasing interest. Here, a liquid azobenzene molecule has been studied for solar thermal energy storage applications and integrated into flow-chemistry devices.
High-performance, command-degradable, antibacterial Schiff base epoxy thermosets: synthesis and properties
Authors: Xu Xiwei , Ma Songqi , Wu Jiahui , Yang Jintao , Wang Binbo , Wang Sheng , Li Qiong , Feng Jie , You Shusen , Zhu Jin
Published: June 2019

Epoxy thermosets containing a two-benzene-ring-conjugated Schiff base structure combined excellent controlled degradability, stability, antibacterial properties, and thermal and mechanical properties.
Tungsten boride: a 2D multiple Dirac semimetal for the hydrogen evolution reaction
Authors: Wang Aizhu , Shen Lei , Zhao Mingwen , Wang Junru , Zhou Weijia , Li Weifeng , Feng Yuanping , Liu Hong
Published: June 2019

Theoretical results demonstrate that WB4 can achieve good HER performance characterized by the general linear relationship between the catalytic activity and d-band centre.
An improved separation method of multi-components signal for sensing based on time-frequency representation
Authors: Cheng Yongliang , Shao Jie , Zhao Yihe , Liu Shu , Malekian Reza
Published: June 2019

In many situations, it is essential to analyze a nonstationary signal for sensing whose components not only overlapped in time-frequency domain (TFD) but also have different durations. In order to address this issue, an improved separation method based on the time-frequency distribution is proposed in this paper. This method computes the time-frequency representation (TFR) of the signal and extracts the instantaneous frequency (IF) of components by a two-dimensional peak search in a limited area in which normalized energy is greater than the set threshold value. If there is more than one peak from a TFR, IFs of components can be determined and linked by a method of minimum slope difference. After the IFs are obtained, the improved time-frequency filtering algorithm is used to reconstruct the component of the signal. We continue this until the residual energy in the TFD is smaller than a fraction of the initial TFD energy. Different from previous methods, the improved method can separate the signal whose components overlapped in TFR and have different time durations. Simulation results have shown the effectiveness of the proposed method.
THz-frequency magnon-phonon-polaritons in the collective strong-coupling regime
Authors: Sivarajah Prasahnt , Steinbacher Andreas , Dastrup Blake , Lu Jian , Xiang Maolin , Ren Wei , Kamba Stanislav , Cao Shixun , Nelson Keith A.
Published: June 2019

Strong coupling between light and matter occurs when the two interact such that new hybrid modes, the so-called polaritons, are formed. Here, we report on the strong coupling of both the electric and the magnetic degrees of freedom to an ultrafast terahertz (THz) frequency electromagnetic wave. In our system, optical phonons in a slab of ferroelectric lithium niobate are strongly coupled to a THz electric field to form phonon-polaritons, which are simultaneously strongly coupled to magnons in an adjacent slab of canted antiferromagnetic erbium orthoferrite via the magnetic-field component of the same THz pulse. We juxtapose experimental results of bare slabs consisting of the two materials with a photonic crystal cavity, consisting of a two-dimensional array of air holes cut into the hybrid slab. In both cases, the strong coupling leads to the formation of new magnon-phonon-polariton modes, which we experimentally observe in the time domain as a normal-mode beating and which corresponds in the frequency domain to an avoided crossing. Our simple yet versatile waveguide platform provides a promising avenue through which to explore ultrafast THz spintronics, quantum electrodynamics, sensing, and spectroscopic applications.
Symmetrical estimation method for skin depth control of spoof surface plasmon polaritons using dispersed waves from a metallic hole array
Authors: Itami Go , Sakai Osamu
Published: June 2019

A metallic hole array (MHA) supports the propagation of spoof surface plasmon polariton (SSPP) modes on its surface. We observe enhancement of dispersed waves at a specific angle when SSPP modes propagate. We propose a symmetrical estimation method for SSPP skin depth using waves dispersed from an MHA. The proposed method provides an experimental demonstration of the skin depth of the electric fields of SSPP modes. Using the dispersed waves emitted from the plane of the MHA, we are able to detect confined electric fields with decay lengths that resemble those theoretically predicted around a specific frequency of SSPP mode excitation.
Off-stoichiometry, structural-polar disorder and piezoelectricity enhancement in pre-MPB lead-free Na0.5Bi0.5TiO3-BaTiO3 piezoceramic
Authors: Mishra Anupam , Khatua Dipak Kumar , De Arnab , Ranjan Rajeev
Published: June 2019

With increasing industrial acceptance of Na0.5Bi0.5TiO3 (NBT)-based lead-free piezoceramics, there is a need to develop insights into the way different factors influence the microstructural–structural–piezoelectric property correlations. In this work, we have examined the role of structural disorder on the piezoelectric response of the pre-MPB composition x = 0.03 of the well-known solid solution series (1-x)Na0.5Bi0.5TiO3-(x)BaTiO3. Using off-stoichiometry on the A-site as a tuning parameter to vary the structural disorder, which we characterize in terms of the fraction of the “cubiclike phase” or variation in the thermal parameter of the A-site cation, it is shown that the piezo response maximizes for the composition, which retains an optimum degree of disorder after poling. Our study confirms the important role of structural disorder in enhancing piezoelectric response in ferroelectric ceramics.
Deep trap analysis in green light emitting diodes: Problems and solutions
Authors: Polyakov A. Y. , Shmidt N. M. , Smirnov N. B. , Shchemerov I. V. , Shabunina E. I. , Tal’nishnih N. A. , Lee In-Hwan , Alexanyan L. A. , Tarelkin S. A. , Pearton S. J.
Published: June 2019

Some green light emitting diodes (LEDs) based on GaN/InGaN multiquantum-well (MQW) structures exhibit strong frequency and temperature dependence of capacitance and prominent changes in capacitance–voltage profiles with temperature that make it difficult to obtain reliable deep level transient spectroscopy (DLTS) measurements. DLTS performed at low probing signal frequency and with constant capacitance between the measurements by controlling applied bias mitigates these issues. This allows measurement of deep electron and hole traps in specific quantum wells (QWs) in the MQW structure. The dominant electron and hole traps detected have levels near Ec− (0.45–0.5) eV and Ev+ (0.6–0.63) eV. Their density increases significantly after aging for a long period (2120 h) at high driving current and elevated temperature. The reason for the observed anomalies in DLTS spectra of these green LEDs is the high density of states in the QWs with activation energies near 0.08, 0.12–0.14, and 0.3 eV, detected in admittance spectra, and, for the 0.08 eV and 0.3 eV, these states are likely related to defects.
Asymmetry of interface reactions in Ag-Sn thin film couples—In-situ synchrotron radiation study
Authors: Zotov N. , Schützendübe P.
Published: June 2019

Synchrotron radiation grazing incidence X-ray diffraction was used to study in situ the asymmetry of the interface reactions and the first phase formation at interfaces prepared by Ag evaporation onto Sn thin films (Ag/Sn case) and by Sn evaporation onto Ag thin films (Sn/Ag case). The ordered Ag3Sn phase forms first on both types of interfaces, in agreement with empirical thermodynamic criteria. Interface asymmetry is observed in the growth mode of the Ag3Sn phase, the reaction constant for Ag3Sn formation, the delay time for the appearance of the Ag3Sn phase, and in the grain-size growth kinetics. At the Ag/Sn interfaces, Ag3Sn growth is predominantly interface controlled and forms almost instantaneously, whereas at the Sn/Ag interfaces, it is diffusion controlled and appears 2 min after the beginning of the Sn deposition. The reaction constant for Ag3Sn formation at the Ag/Sn interface (k =0.22 ± 0.02 nm/s) is much larger than the reaction constant at the Sn/Ag interface (k ≪ 0.09 nm/s). The differences in the interface reactions are attributed to the larger diffusion coefficient of Ag in Ag3Sn (DAg = 3.9 ± 0.2 × 10−17 m2/s), compared to the diffusion coefficient of Sn in Ag3Sn (DSn = 6.2 ± 0.1 × 10−19 m2/s), estimated from the in situ X-ray diffraction data. The second intermetallic phase (Ag4Sn), existing in the Ag-Sn system, forms only in the presence of excess Ag atoms at the Sn/Ag interface (realized only after the complete consumption of the Sn bottom layers), because the Ag4Sn phase has a higher nucleation barrier ΔG* and a lower growth rate than the Ag3Sn phase.
Surface properties enhancement of battery separator by micro-plasma treatments
Authors: Rogez Eliott , Claude-Montigny Bénédicte , Violleau David , Rusiecki Jean-Paul , Motret Olivier
Published: June 2019

The aim of this work is to test the wettability enhancement of a low-wetting and low-cost commercial polymer separator by cold microplasma treatments. Liquid and gas ammonia are tested as precursors in a pulsed microreactor at low pressure. Two modes of plasma producing are used, i.e., with and without bias. Optical emission spectroscopy, contact angle technique, and cycling tests are performed to characterize the process and the separator. Best results are obtained with liquid ammonia precursor without bias (contact angle between water and a polyethylene separator being 10° ± 2° compared to 111° ± 2° without any treatment). Cycling tests of lithium half-cells incorporating plasma-treated separator show drastic improvements to capacity retention at high rates (after 100 cycles at a 2C rate, the discharge capacity of a Li4Ti5O12 is almost three times higher, i.e., 38 mA h g−1 and 113 mA h g−1 with an untreated separator and a treated one, respectively).
Reducing virtual source size by using facetless electron source for high brightness
Authors: Matsunaga Soichiro , Sohda Yasunari
Published: June 2019

Brightness of an electron source is key for the high spatial resolution of electron microscopy and analysis. A small source size is essential for high brightness, and it has been achieved by using small crystal facets; however, the emission current is reduced when the facet area is decreased. To achieve a small source size while maintaining a large emission current, we conceived of the novel idea of a facetless electron source with a curved emission surface. Computational simulations of electron trajectories revealed that the virtual source, which is the spot at which back-projected trajectories are focused, of a facetless source was smaller than that of the conventional source with a facet and that the brightness of the facetless source was approximately four times larger. To achieve electron emission from a curved surface, we fabricated a facetless source by coating amorphous carbon on a metallic electron source. Electron emission from the coated surface showed a homogeneous pattern, which is clear evidence for emission from the curved surface of the facetless source.
Phonon interaction with ripples and defects in thin layered molybdenum disulfide
Authors: Smith Brandon , Lindsay Lucas , Kim Jaehyun , Ou Eric , Huang Rui , Shi Li
Published: June 2019

Compared to other extrinsic phonon scattering mechanisms such as surface and interior defects, phonon scattering and lattice thermal resistance due to structural rippling in few-layer two-dimensional (2D) materials are under-examined. Here, the temperature-dependent basal-plane thermal conductivities (κ) of one rippled and four flat molybdenum disulfide (MoS2) samples are measured using a four-probe thermal transport measurement method. A flat 18 nm thick sample and a rippled 20 nm thick sample show similar peak κ values of 122 ± 17 and 129 ± 19 W m−1 K−1, respectively. In comparison, a 32 nm thick flat sample has a peak κ value of only 58 ± 11 W m−1 K−1 despite having an increased thickness. The peak thermal conductivities of the five samples decrease with increasing integrated Raman intensity caused by defects in the frequency range of the phonon bandgap in MoS2. In conjunction with the experimental findings, theoretical calculations of the temperature-, thickness-, strain-, and defect-dependent κ of thin MoS2 layers reveal the importance of interior defect scattering over scattering from compression-induced ripples and surface defects in these samples. The results further clarify the conditions where ripples are important in determining the basal plane thermal resistance in layered systems.
Efficient simulation of overtones and combination bands in resonant Raman spectra
Authors: de Souza Bernardo , Farias Giliandro , Neese Frank , Izsák Róbert
Published: June 2019

In this work, we describe how Resonant Raman (RR) spectra can be predicted with good accuracy using the path integral formulation for the harmonic oscillator, including the Herzberg-Teller and Duschinsky rotation effects. In particular, we will focus on approximations to make these calculations more efficient and expand the current methodology to include overtones and combination bands in the final prediction. After outlining the theory, we explain how it can be made into a black-box method and discuss the approximations that rely on its intrinsic parameters. It is shown that the latter can improve the efficiency by orders of magnitude, without substantial loss in accuracy. We will also show that the predicted RR spectra are in good agreement with experiment for both the intensity and position of spectral peaks, even for higher order vibronic excitations. Thus, the method proposed here can be used as a computational aid to experiments to improve the quality of analysis and theoretical understanding of RR.
Pressure-driven flow focusing of two miscible liquids
Authors: Bihi Ilyesse , Vesperini Doriane , Kaoui Badr , Le Goff Anne
Published: June 2019

Flow focusing consists in injecting a core liquid into another surrounding flowing sheath liquid. Here we investigate experimentally the influence of imposing pressure to generate coflow of two miscible liquids. We inject water in the central inlet of a cross-junction microfluidic device and different mixtures of glycerol-water in the two lateral inlets. A pressure generator is used to control the flows, and the established flow rates are monitored in both inlets. We draw a state diagram that delimits the regions of the coflow, the inner and outer back flows. We measure the width of the jet as a function of different control parameters: the inlet pressures, the flow rates, the viscosity contrast, and the channel aspect ratio. We show that the jet width can be controlled by tuning the internal to external pressure ratio solely, provided that the viscosity contrast is low. We discuss the possibility to use such a system to center particles in a channel.
Identity construction in advertising
Authors: Pruekchaikul Korapat
Published: June 2019

This paper presents a qualitative and descriptive study of textual genre, based on the epistemological concept of
Socio-Discursive Interactionism. As a study concerning language and identity, it focuses on identity construction of
the bank, its customers, and products in seven Portuguese bank pamphlets. Being aware of the pamphlets’ multimodal nature, the
author employs the analytical model to examine both their verbal and non-verbal components. The model incorporates four
theoretical approaches: the notion of personal deictic markers proposed by Socio-Discursive Interactionism, Greimas’ actantial model,
symbolic attribute and suggestive processes, as well as the ideational and interpersonal functions proposed by the Grammar of
Visual Design. The analysis presents three-fold conclusion. Firstly, the three major stakeholders’ identity in the pamphlets under analysis is multimodally constructed. Secondly, construction of the said identity is both denotative and connotative. Thirdly, besides relating advertising ideology in general, such identity construction also incorporates social meaning of the three major textual participants in the data already analyzed.
Different isolation approaches lead to diverse glycosylated extracellular vesicle populations
Authors: Freitas Daniela , Balmaña Meritxell , Poças Juliana , Campos Diana , Osório Hugo , Konstantinidi Andriana , Vakhrushev Sergey Y. , Magalhães Ana , Reis Celso A.
Published: June 2019

Extracellular vesicles (EVs) are a heterogeneous group of small secreted particles involved in intercellular communication and mediating a broad spectrum of biological functions. EVs cargo is composed of a large repertoire of molecules, including glycoconjugates. Herein, we report the first study on the impact of the isolation strategy on the EV populations' glycosylation profile. The use of different state‐of‐the‐art protocols, namely differential ultracentrifugation (UC), total exosome isolation (TEI), OptiPrepTM density gradient (ODG) and size exclusion chromatography (SEC) resulted in EV populations displaying different sets of glycoconjugates. The EV populations obtained by UC, ODG and SEC methods displayed similar protein and glycan profiles, whereas TEI methodology isolated the most distinct EV population. In addition, ODG and SEC isolation protocols provided an enhanced EV glycoproteins detection. Remarkably, proteins displaying the tumour‐associated glycan sialyl‐Tn (STn) were identified as packaged cargo into EVs independently of the isolation methodology. STn carrying EV samples isolated by UC, ODG and SEC presented a considerable set of cancer‐related proteins that were not detected in EVs isolated by TEI. Our work demonstrates the impact of using different isolation methodologies in the populations of EVs that are obtained, with consequences in the glycosylation profile of the isolated population. Furthermore, our results highlight the importance of selecting adequate EV isolation protocols and cell culture conditions to determine the structural and functional complexity of the EV glycoconjugates.
Resolution modeling in projection space using a factorized multi-block detector response function for PET image reconstruction
Authors: Xu Hancong , Lenz Mirjam , Caldeira Liliana , Ma Bo , Pietrzyk Uwe , Lerche Christoph , Shah N Jon , Scheins Juergen
Published: June 2019

Positron emission tomography (PET) images usually suffer from limited resolution and statistical uncertainties. However, a technique known as resolution modeling (RM) can be used to improve image quality by accurately modeling the system’s detection process within the iterative reconstruction. In this study, we present an accurate RM method in projection space based on a simulated multi-block detector response function (DRF) and evaluate it on the Siemens hybrid MR-BrainPET system. The DRF is obtained using GATE simulations that consider nearly all the possible annihilation photons from the field-of-view (FOV). Intrinsically, the multi-block DRF allows the block crosstalk to be modeled. The RM blurring kernel is further generated by factorizing the blurring matrix of one line-of-response (LOR) into two independent detector responses, which can then be addressed with the DRF. Such a kernel is shift-variant in 4D projection space without any distance or angle compression, and is integrated into the image reconstruction for the BrainPET insert with single instruction multiple data (SIMD) and multi-thread support. Evaluation of simulations and measured data demonstrate that the reconstruction with RM yields significantly improved resolutions and reduced mean squared error (MSE) values at different locations of the FOV, compared with reconstruction without RM. Furthermore, the shift-variant RM kernel models the varying blurring intensity for different LORs due to the depth-of-interaction (DOI) dependencies, thus avoiding severe edge artifacts in the images. Additionally, compared to RM in single-block mode, the multi-block mode shows significantly improved resolution and edge recovery at locations beyond 10 cm from the center of BrainPET insert in the transverse plane. However, the differences have been observed to be low for patient data between single-block and multi-block mode RM, due to the brain size and location as well as the geometry of the BrainPET insert. In conclusion, the RM method proposed in this study can yield better reconstructed images in terms of resolution and MSE value, compared to conventional reconstruction without RM.
Ultra-cold single-atom quantum heat engines
Authors: Barontini Giovanni , Paternostro Mauro
Published: June 2019

We propose a scheme for a single-atom quantum heat engine based on ultra-cold atom technologies. Building on the high degree of control typical of cold atom systems, we demonstrate that three paradigmatic heat engines—Carnot, Otto and Diesel—are within reach of state-of-the-art technology, and their performances can be benchmarked experimentally. We discuss the implementation of these engines using realistic parameters and considering the friction effects that limit the maximum obtainable performances in real-life experiments. We further consider the use of super-adiabatic transformations that allow to extract a finite amount of power keeping maximum (real) efficiency, and consider the energetic cost of running such protocols.
Velocity distribution of driven granular gases
Authors: Prasad V V , Das Dibyendu , Sabhapandit Sanjib , Rajesh R
Published: June 2019

The granular gas is a paradigm for understanding the effects of inelastic interactions in granular materials. Kinetic theory provides a general theoretical framework for describing the granular gas. Its central result is that the tail of the velocity distribution of a driven granular gas is a stretched exponential that, counterintuitively, decays slower than that of the corresponding elastic gas in equilibrium. However, a derivation of this result starting from a microscopic model is lacking. Here, we obtain analytical results for a microscopic model for a granular gas where particles with two-dimensional velocities are driven homogeneously and isotropically by reducing the velocities by a factor and adding a stochastic noise. We find two universal regimes. For generic physically relevant driving, we find that the tail of the velocity distribution is a Gaussian with additional logarithmic corrections. Thus, the velocity distribution decays faster than the corresponding equilibrium gas. The second universal regime is less generic and corresponds to the scenario described by kinetic theory. Here, the velocity distribution is shown to decay as an exponential with additional logarithmic corrections, in contradiction to the predictions of the phenomenological kinetic theory, necessitating a re-examination of its basic assumptions.
Loading Effect with Distributed Generation (DG) Injection on Distribution System on Temperature and Breakdown Voltage of Oil Transformer in Distributed System
Authors: Dewi Cahya F. , Fahmi Daniar , Yulistya Negara I Made , Asfani Dimas Anton , Mursid Mahirul
Published: June 2019

Increasing of load demand causes the greater electrical power needed. When the transformer operation in overload conditions and hottest-spot temperature, it will accelerate the aging and failure in oil insulation of transformer. Application of distributed generation (DG) can provide the additional electrical power supply to the loads (household). So that, it can relieve the workload power transformer and reduce the acceleration of aging in oil insulation of transformer. This research will analysed the effect of loading capacity with DG injection using a PV generator on the condition of oil insulation on 150 / 20kV of electricity distribution system using ETAP software. Tests of this research are carried out on 24 hours of loading conditions on the distribution system. The calculation of isolation oil temperature was carried out using a mathematical formula according to the IEEE, and oil insulation would be tested with a breakdown voltage (BDV) test.
Hybrid Encryption using Confused and Stream Cipher to Improved Medical Images Security
Authors: Irawan Candra , Moses Setiadi De Rosal Ignatius , Rachmawanto Eko Hari , Sari Christy Atika , Doheir Mohamed
Published: June 2019

The medical image is an image that needs to be protected because it is private and confidential. The more modern technology enables tele surgery, tele diagnosis, and others to demand safe and confidential medical images. This research proposes cryptography method in a medical image by using the combination algorithm of Arnold chaotic map (ACM) and Rivest Cipher 4 (RC4). ACM is a chaotic cryptographic technique superior to attack deferential attack and brute force. The way chaotic cryptography works is to confuse the pixel location. While RC4 is a stream cipher technique that has resistance to statistical attacks and fasts in computing. The purpose of merging these two algorithms is to get stronger encryption techniques, have good performance, and can be computed quickly. Based on the experimental results proved that the use of a combination of these two algorithms can produce satisfactory quality encryption. This is evidenced by several measuring tools such as SSIM, Correlation Coefficient, Entropy, NPCR, UACI, and histogram analysis. Computation time required is also relatively very fast ie less than one second, where computational time is calculated by tic toc function.
Web-based GIS ancestral domain management using pull technology
Authors: Pitogo V
Published: June 2019

The changes made by emerging technologies brought a significant effect on how people deal with everyday living even the least and reserved individuals in the community. In the Philippines, especially the National Commission on Indigenous Peoples (NCIP) a commission empowered to take the necessary protection and preservation of welfare, rights, and culture among IP’s has been affected by this rapid changes, particularly the Ancestral Domains. It has twenty (20) Certified Ancestral Domain Title (CADT’s), two (2) ongoing and CADTiables comprising areas of the Caraga region. Gathering and producing of information has always been a challenge but over the years it was eventually resolved into manually storing and keeping of data into the computer. Time, being an essential factor in the delivery of service to the IP clients and vital in coordination with other agencies, as much as possible the office responds immediately to the needs of the clients by providing them with reliable and accurate data. However, with the current status quo, retrieving files will take time, thus delaying coordination and delaying delivery of service to the clients. A “Web-based GIS Ancestral Domain Management Using Pull Technology” is a response to the pressing needs of the commission to the delivery of service to their clients, a digitized spatial data banking. The system is packed with a variety of technologies such as Mobile, Web, GIS, and other mapping tools and frameworks; scripting languages and database software integrating therein that made it functional. Thus, providing a convenient and efficient way of information generation.
Optimization Substitution Cipher And Hidden Plaintext In Image Data Using LSB Method
Authors: Ariyus Dony , Ardiansyah
Published: June 2019

Cryptography is a way to protect certain messages that have confidential properties or have properties that must be protected from unrelated parties. Substitution techniques have several algorithms such as hill cipher, vigenere cipher, one-time pad and others. This research is a development of previous research that has been carried out many combine substitution techniques. This research combines 4 substitution techniques that have been modified and stored messages that have been hidden into an image with the Least Significant Bit (LSB) algorithm. This research provides additional before the process of standard substitution techniques so that it will provide a more level of security even though the encryption process uses simple techniques and inserts messages into an image with PNG extension using LSB to improve security in messages. This is evidenced by the absence of color differences in the image so that it will not arouse suspicion. However, hex and the size of the image will change. besides this research found that images can only be implemented on social media such as Google+, Telegram, and Google Drive. Because social media like Facebook, WhatsApp, Instagram, and Pinterest will automatically convert, resizing to be smaller than the actual size.
Effect of Information Waste and Technostress on Users Satisfaction and Productivity in STMIK El Rahma Yogyakarta
Authors: Ardiansyah D , Winantu A , Muzakkar M , Praptomo Y , Nurudin I
Published: June 2019

The Academic Information System produces information on academic services. The existence of information that is not in accordance with the needs of users and the use of technology that results in users experiencing pressure in work affects user satisfaction and user productivity. The purpose of this study is: 1. To examine the effect of information waste on user satisfaction and productivity. 2. To test the influence of technostress on user satisfaction and productivity. 3. To test the effect of user satisfaction on productivity. The research method uses explanatory research with a quantitative approach. Samples in the study amounted to 80 which were distributed to users of STMIKElRahma Yogyakarta’s academic information system (SIMAK), which consisted of all lecturers, employees who used and developed SIMAK and students. The distribution of questionnaires was carried out directly to respondents with paper media. Data Analysis using Partial Least Square (PLS) 3.0. The results of the study are as follows: 1. There is a positive and significant influence of information waste on user satisfaction while on productivity there is a positive but not significant effect. 2. There is a positive but not significant effect on Technostress on user satisfaction and productivity. 3. There is a positive but insignificant user satisfaction with productivity
A modification on existing cultural metadata management system to accommodate community-driven and holistic cultural metadata
Authors: Kartawihardja D S , Pee A N C , Zakaria M H
Published: June 2019

Preservation of cultural data is a process that is not only the duty of the government, library, or museum but also needs to involve the community as the main actor of culture itself. Involvement of cultural communities in the preservation process is important because the community has the complete cultural information and is a part in the process of cultural change itself. One aspect that determines data structure in the data management system is the metadata structure. Therefore, a specific cultural metadata management system to determine the cultural data structure and its changes mechanism. Cultural metadata management can be used to determine the depth and structure of data needed in storing cultural data process. Because culture changes over the time, then the metadata should be able to evolve in facing any changes. Various experts have carried various studies related to the cultural metadata management system but do not involve cultural members and cover all cultural elements. Therefore, this paper tries to analyse several studies regarding the process of managing cultural metadata and proposes modifications to existing processes with a community-driven approach and the ability to manage holistic cultural elements.