Search

Your search keyword '"Yao, N."' showing total 2,115 results
Start Over Author "Yao, N."
2,115 results on '"Yao, N."'

152. SiGe quantum dot single-hole transistor fabricated by atomic force microscope nanolithography and silicon epitaxial-regrowth.

Author

Bo, Xiang-Zheng, Rokhinson, L. P., Yao, N., Tsui, D. C., and Sturm, J. C.

Subjects
SILICON, GERMANIUM, SEMICONDUCTORS, CRYSTALS, ELECTRIC conductivity
Abstract

A SiGe quantum dot single-hole transistor passivated by silicon epitaxial regrowth with extremely stable Coulomb blockade oscillations has been demonstrated. The quantum dot was defined by atomic force microscopy nanopatterning technique and subsequently passivated by the epitaxial regrowth of silicon. Such passivation of the dot avoids any potential defect states on the dot associated with the Si/SiO2 interface. Coulomb blockade oscillations controlled by side planar gating at ∼0.3 K are reproducible, in sharp contrast with the noisy and irreproducible I-V characteristics of unpassivated SiGe quantum dot devices. An additional top gate was used to further tune the Coulomb blockade oscillations, enabling a shift in side-gate voltage of up to three periods. [ABSTRACT FROM AUTHOR]

Published
2006
Full Text
View/download PDF

153. Empirical Study of the influence of Urban Major Events on Land Use–with Shanghai Airport Park as an Example

Author

Yao, N.

Subjects
Land use, Airport park, Urban major events, influence study
Abstract

With the impact of “Big HongQiao” event on the land readjustment in Airport Park as an example, the paper counted on the quantitative research of the land use change caused by major events. Considering single dynamic index of changes of land use type and the Hedonic real estate price model, the results were obtained as follows: (1) “Big HongQiao” event, directly, accelerates the transition of research area from industrial to commercial office; (2) the model showed that, due to the change of variables, the floor price was significantly affected by external conditions. Finally, the research conclusion was that the impact of land-use changes as a result of significant events,was mainly demonstrated by the followings: (1) location choice; (2) social gathering; (3) derived system; (4) driving social damping mechanism, and etc.

Published
2013

154. Epigenetic Age Acceleration Assessed with Human White-Matter Images

Author

Hodgson, K., Carless, M.A., Kulkarni, H., Curran, J.E., Sprooten, E., Knowles, E.E., Mathias, S., Goring, H.H., Yao, N., Olvera, R.L., Fox, P.T., Almasy, L., Duggirala, R., Blangero, J., Glahn, D.C., Hodgson, K., Carless, M.A., Kulkarni, H., Curran, J.E., Sprooten, E., Knowles, E.E., Mathias, S., Goring, H.H., Yao, N., Olvera, R.L., Fox, P.T., Almasy, L., Duggirala, R., Blangero, J., and Glahn, D.C.

Abstract

Item does not contain fulltext, The accurate estimation of age using methylation data has proved a useful and heritable biomarker, with acceleration in epigenetic age predicting a number of age-related phenotypes. Measures of white matter integrity in the brain are also heritable and highly sensitive to both normal and pathological aging processes across adulthood. We consider the phenotypic and genetic interrelationships between epigenetic age acceleration and white matter integrity in humans. Our goal was to investigate processes that underlie interindividual variability in age-related changes in the brain. Using blood taken from a Mexican-American extended pedigree sample (n = 628; age = 23.28-93.11 years), epigenetic age was estimated using the method developed by Horvath (2013). For n = 376 individuals, diffusion tensor imaging scans were also available. The interrelationship between epigenetic age acceleration and global white matter integrity was investigated with variance decomposition methods. To test for neuroanatomical specificity, 16 specific tracts were additionally considered. We observed negative phenotypic correlations between epigenetic age acceleration and global white matter tract integrity (rhopheno = -0.119, p = 0.028), with evidence of shared genetic (rhogene = -0.463, p = 0.013) but not environmental influences. Negative phenotypic and genetic correlations with age acceleration were also seen for a number of specific white matter tracts, along with additional negative phenotypic correlations between granulocyte abundance and white matter integrity. These findings (i.e., increased acceleration in epigenetic age in peripheral blood correlates with reduced white matter integrity in the brain and shares common genetic influences) provide a window into the neurobiology of aging processes within the brain and a potential biomarker of normal and pathological brain aging.SIGNIFICANCE STATEMENT Epigenetic measures can be used to predict age with a high degree of accuracy and so captu

Published
2017

155. Scheduling Feasibility of Energy Management in Micro-Grids Based on Significant Moment Analysis

Author

Shi, Z., Yao, N., Zhang, Fumin, Shi, Z., Yao, N., and Zhang, Fumin

Abstract

This chapter studies the operation and scheduling of electric loads in micro-grid, a highly automated and distributed cyber-physical energy system. We establish rigorous mathematical expressions for electric loads and battery banks in the micro-grid by considering their characteristics and constraints. Based on these mathematical models, we propose a novel real-time scheduling analysis method for priority-based energy management in micro-grid, named significant moments analysis (SMA). SMA pinpoints all the crucial moments when electrical operations are requested among the micro-grid and establishes a dynamic model to describe the scheduling behavior of electric loads. Using SMA, we can check the scheduling feasibility and predict whether the micro-grid can generate enough power to support the execution of electric loads. In the case where the power is insufficient to supply load demands, SMA can provide accurate information about the amount of insufficient power and the time when the insufficiency happens. Simulated results are presented to show the effectiveness of the proposed analysis method. © 2017 Elsevier Inc. All rights reserved.

Published
2017

156. Direct Probe of Topological Invariants Using Bloch Oscillating Quantum Walks

Author

Ramasesh, V. V., Flurin, E., Rudner, Mark Spencer, Siddiqi, I., Yao, N. Y., Ramasesh, V. V., Flurin, E., Rudner, Mark Spencer, Siddiqi, I., and Yao, N. Y.

Abstract

The topology of a single-particle band structure plays a fundamental role in understanding a multitude of physical phenomena. Motivated by the connection between quantum walks and such topological band structures, we demonstrate that a simple time-dependent, Bloch-oscillating quantum walk enables the direct measurement of topological invariants. We consider two classes of one-dimensional quantum walks and connect the global phase imprinted on the walker with its refocusing behavior. By disentangling the dynamical and geometric contributions to this phase, we describe a general strategy to measure the topological invariant in these quantum walks. As an example, we propose an experimental protocol in a circuit QED architecture where a superconducting transmon qubit plays the role of the coin, while the quantum walk takes place in the phase space of a cavity.

Published
2017

157. Expectations for Direct Photon Physics from Fermilab Experiment E705

Author

Wagoner, D. E., Arenton, M., Chen, T. Y., Conetti, S., Cox, B., Delchamps, S., Etemadi, B., Fortney, L., Guffey, K., Haire, M., Ioannu, P., Jenkins, C. M., Judd, D. J., Kourkoumelis, C., Koutentakis, I., Kuzminski, J., Lai, K. W., Manousakis-Katsikakis, A., Mao, H., Marchionni, A., Mazur, P. O., Murphy, C. T., Pramantiotis, T., Rameika, R., Resvanis, L. K., Rosati, M., Rosen, J., Shen, C. H., Shen, Q., Simard, A., Smith, R., Spiegel, L., Stairs, D., Tesarek, R., Tucker, W., Turkington, T., Turkot, F., Turnbull, L., Tzamarias, S., Vassiliou, M., Voulgaris, G., Wang, C., Yang, W., Yao, N., Zhang, N., Zhang, X., Zioulas, G., and Cox, Bradley, editor

Published
1988
Full Text
View/download PDF

158. The efficacy and safety of probiotics for prevention of chemoradiotherapy-induced diarrhea in people with abdominal and pelvic cancer: a systematic review and meta-analysis

Author

Hanif S, Wang Zx, Yao N, Pei Cx, Jiang L, Wei Kk, and Wang Yh

Subjects
Diarrhea, medicine.medical_specialty, MEDLINE, Medicine (miscellaneous), Cochrane Library, 03 medical and health sciences, 0302 clinical medicine, Internal medicine, medicine, Humans, Adverse effect, Radiation Injuries, Pelvic Neoplasms, Randomized Controlled Trials as Topic, Nutrition and Dietetics, business.industry, Probiotics, Odds ratio, Inflammatory Bowel Diseases, Surgery, Systematic review, 030220 oncology & carcinogenesis, Meta-analysis, Abdominal Neoplasms, 030211 gastroenterology & hepatology, medicine.symptom, Safety, business, Chemoradiotherapy
Abstract

A systematic review and meta-analysis were designed to evaluate the efficacy and safety of probiotics for prevention of chemoradiotherapy-induced diarrhea in people with abdominal and pelvic cancer. We searched the Cochrane Library, PubMed, EMBASE and Web of Science up to November 2015. We also hand searched the citation lists of included studies and previously identified systematic reviews to identify further relevant trials. Odds ratio (OR) was used to compare efficacy, and the pooled OR was estimated using a random effects model; heterogeneity was assessed with Cochran's Q and the Higgins' I2-test. Two reviewers assessed trial quality and extracted data independently. Analysis and bias for each included study were performed using Review Manager 5.2. Nine randomized and placebo-controlled studies (N=1265 participants) were included for assessing efficacy, of which seven were about radiotherapy and two about chemotherapy. Probiotic groups were compared with control groups with respect to the the incidence of diarrhea, OR=0.47 (95% confidence interval 0.28-0.76; P=0.002). Eleven studies, including 1612 people (873 consuming probiotics and 739 not consuming probiotics), were used for the analysis of safety of probiotics. Of the 11 studies, seven studies had no adverse events (AEs) caused by probiotics, whereas four studies reported varying degrees of AEs in their treatment. Probiotics may have a beneficial effect in prevention of chemoradiotherapy-induced diarrhea generally, especially for Grade⩾2 diarrhea. Probiotics may rarely cause AEs.

Published
2015

160. Widespread white matter microstructural differences in schizophrenia across 4322 individuals: results from the ENIGMA Schizophrenia DTI Working Group

Author

Kelly, S, primary, Jahanshad, N, additional, Zalesky, A, additional, Kochunov, P, additional, Agartz, I, additional, Alloza, C, additional, Andreassen, O A, additional, Arango, C, additional, Banaj, N, additional, Bouix, S, additional, Bousman, C A, additional, Brouwer, R M, additional, Bruggemann, J, additional, Bustillo, J, additional, Cahn, W, additional, Calhoun, V, additional, Cannon, D, additional, Carr, V, additional, Catts, S, additional, Chen, J, additional, Chen, J-x, additional, Chen, X, additional, Chiapponi, C, additional, Cho, Kl K, additional, Ciullo, V, additional, Corvin, A S, additional, Crespo-Facorro, B, additional, Cropley, V, additional, De Rossi, P, additional, Diaz-Caneja, C M, additional, Dickie, E W, additional, Ehrlich, S, additional, Fan, F-m, additional, Faskowitz, J, additional, Fatouros-Bergman, H, additional, Flyckt, L, additional, Ford, J M, additional, Fouche, J-P, additional, Fukunaga, M, additional, Gill, M, additional, Glahn, D C, additional, Gollub, R, additional, Goudzwaard, E D, additional, Guo, H, additional, Gur, R E, additional, Gur, R C, additional, Gurholt, T P, additional, Hashimoto, R, additional, Hatton, S N, additional, Henskens, F A, additional, Hibar, D P, additional, Hickie, I B, additional, Hong, L E, additional, Horacek, J, additional, Howells, F M, additional, Hulshoff Pol, H E, additional, Hyde, C L, additional, Isaev, D, additional, Jablensky, A, additional, Jansen, P R, additional, Janssen, J, additional, Jönsson, E G, additional, Jung, L A, additional, Kahn, R S, additional, Kikinis, Z, additional, Liu, K, additional, Klauser, P, additional, Knöchel, C, additional, Kubicki, M, additional, Lagopoulos, J, additional, Langen, C, additional, Lawrie, S, additional, Lenroot, R K, additional, Lim, K O, additional, Lopez-Jaramillo, C, additional, Lyall, A, additional, Magnotta, V, additional, Mandl, R C W, additional, Mathalon, D H, additional, McCarley, R W, additional, McCarthy-Jones, S, additional, McDonald, C, additional, McEwen, S, additional, McIntosh, A, additional, Melicher, T, additional, Mesholam-Gately, R I, additional, Michie, P T, additional, Mowry, B, additional, Mueller, B A, additional, Newell, D T, additional, O'Donnell, P, additional, Oertel-Knöchel, V, additional, Oestreich, L, additional, Paciga, S A, additional, Pantelis, C, additional, Pasternak, O, additional, Pearlson, G, additional, Pellicano, G R, additional, Pereira, A, additional, Pineda Zapata, J, additional, Piras, F, additional, Potkin, S G, additional, Preda, A, additional, Rasser, P E, additional, Roalf, D R, additional, Roiz, R, additional, Roos, A, additional, Rotenberg, D, additional, Satterthwaite, T D, additional, Savadjiev, P, additional, Schall, U, additional, Scott, R J, additional, Seal, M L, additional, Seidman, L J, additional, Shannon Weickert, C, additional, Whelan, C D, additional, Shenton, M E, additional, Kwon, J S, additional, Spalletta, G, additional, Spaniel, F, additional, Sprooten, E, additional, Stäblein, M, additional, Stein, D J, additional, Sundram, S, additional, Tan, Y, additional, Tan, S, additional, Tang, S, additional, Temmingh, H S, additional, Westlye, L T, additional, Tønnesen, S, additional, Tordesillas-Gutierrez, D, additional, Doan, N T, additional, Vaidya, J, additional, van Haren, N E M, additional, Vargas, C D, additional, Vecchio, D, additional, Velakoulis, D, additional, Voineskos, A, additional, Voyvodic, J Q, additional, Wang, Z, additional, Wan, P, additional, Wei, D, additional, Weickert, T W, additional, Whalley, H, additional, White, T, additional, Whitford, T J, additional, Wojcik, J D, additional, Xiang, H, additional, Xie, Z, additional, Yamamori, H, additional, Yang, F, additional, Yao, N, additional, Zhang, G, additional, Zhao, J, additional, van Erp, T G M, additional, Turner, J, additional, Thompson, P M, additional, and Donohoe, G, additional

Published
2017
Full Text
View/download PDF

171. Natural quasicrystal with decagonal symmetry

Author

Bindi, Luca, Yao, N., Lin, C., Hollister, L. S., Andronicos, C. L., Distler, V. V., Eddy, M. P., Kostin, A., Kryachko, V., MacPherson, G. J., Steinhardt, W. M., Yudovskaya, M., and Steinhardt, P. J.

Subjects
quasicrystals
Published
2015

172. LINC00968 accelerates the progression of epithelial ovarian cancer via mediating the cell cycle progression.

Author

YAO, N., SUN, J.-Q., YU, L., MA, L., and GUO, B.-Q.

Abstract

OBJECTIVE: The aim of this study was to clarify the potential role of LINC00968 in the progression of epithelial ovarian cancer (EOC) and the underlying mechanism. PATIENTS AND METHODS: The relative expression level of LINC00968 in EOC tissues (n=40) and normal ovarian tissues (n=40) was determined by quantitative Real Time-Polymerase Chain Reaction (qRT-PCR). LINC00968 expression in human-derived ovarian cancer cell lines was examined by qRT-PCR as well. After transfection of LINC00968 small-interfering RNA (siRNA) in ovarian cancer cells, cell cycle progression and cell proliferation were evaluated through flow cytometry, Cell Counting Kit-8 (CCK-8) and colony formation assay, respectively. Tumor xenograft was conducted in nude mice to elucidate the function of LINC00968 in EOC tumorigenesis in vivo. Furthermore, the relative expression levels of cell cycle factors and protein kinase B/extracellular-signal-regulated kinase (AKT/ERK) in ovarian cancer cells influenced by LINC00968 were detected by Western blot. RESULTS: LINC00968 was significantly up-regulated in EOC tissues when compared with normal control tissues. Meanwhile, LINC00968 expression was positively correlated with the prognosis of EOC. Transfection of LINC00968 siRNA in HEY and HO8910 cells markedly attenuated proliferative ability and arrested cell cycle in the G1 phase. Knockdown of LINC00968 remarkably suppressed tumor growth of EOC in nude mice. The silence of LINC00968 significantly downregulated Cyclin D, Cyclin E and CDK4, whereas upregulated p16 and p21. In addition, AKT and ERK pathways were inhibited by knockdown of LINC00968 in ovarian cancer cells. CONCLUSIONS: LINC00968 expression is markedly upregulated in EOC. Meanwhile, it arrests the cell cycle in the G1 phase by inhibiting the ERK and AKT pathways, thus accelerating EOC progression. [ABSTRACT FROM AUTHOR]

Published
2019

173. LncRNA GIHCG promotes development of ovarian cancer by regulating microRNA-429.

Author

YAO, N., YU, L., ZHU, B., GAN, H.-Y., and GUO, B.-Q.

Abstract

OBJECTIVE: To explore whether lncRNA GIHCG participates in the pathogenic progression of ovarian cancer (OC) and its underlying mechanism. PATIENTS AND METHODS: Expression levels of GIHCG and microRNA-429 in 30 OC tissues and normal ovarian tissues were detected by quantitative Real time-polymerase chain reaction (qRT-PCR). Subsequently, 15 pairs of OC tissues and paracancerous tissues were selected for correlation analyses of GIHCG, microRNA-429 and the overall survival (OS) of OC patients using Kaplan-Meier method. Pearson correlation analyses were conducted for investigating the correlation between GIHCG and microRNA-429. GIHCG expression in OC cell lines (HEY, A2780 and HO8910) and normal epithelial OC cell line (IOSE-386) was detected by qRTPCR. After transfection of GIHCG overexpression plasmid in HEY cells, cell cycle, proliferation and colony formation ability were detected by flow cytometry, cell counting kit-8 (CCK-8) and colony formation assay. MicroRNA-429 expression in HEY cells overexpressing GIHCG was detected by qRT-PCR. Rescue experiments were conducted by co-transfection of GIHCG overexpression plasmid and microRNA-429 mimics, followed by cell cycle and colony formation detection. RESULTS: GIHCG was highly expressed, whereas microRNA-429 was lowly expressed in OC tissues than that of paracancerous tissues. OC patients with higher expression of GIHCG showed shorter OS than those with lower expression. However, OC patients with higher expression of microRNA-429 had longer OS than those with lower expression. GIHCG expression was positively correlated to microRNA-429. In vitro experiments showed that GIHCG was highly expressed in HEY, A2780 and HO8910 cells than that of IOSE-386 cells. GIHCG overexpression in HEY cells promoted cell cycle and colony formation abilities, which were reversed by microRNA-429 overexpression. CONCLUSIONS: GIHCG is highly expressed in OC, which promotes OC development by stimulating cell cycle progression and cell proliferation by regulating microRNA-429. [ABSTRACT FROM AUTHOR]

Published
2018

174. Adsorption isotherms of three composites flours of plantain (Musa spp var. Horn 1 (AAB), FHIA 21 (AAAB) and PITA 3 (AAAB)) and cassava (Manihot esculenta var. Bonoua 2).

Author

Brou, K. S., Yué Bi, Y. C., Yao, N. B., Kouamé, A. F., Kouamé, F. D. V., and Tano, K.

Subjects
PLANTAGO, ADSORPTION isotherms, ADSORPTION (Chemistry), LANGMUIR isotherms, CASSAVA
Abstract

Adsorption isotherms constitute a source of significant information to establish the stability of the foodstuffs and their storage conditions. The storage of flours requires the knowledge of their hygroscopicity. Adsorption isotherms of composite flours of plantain of the local variety Horn 1 (FC) (Musa AAB) and the two plantains hybids varities FHIA 21 (FF) (Musa AAAB) and PITA 3 (FP) (Musa AAAB) and cassava (var. Bonoua 2), were determined using the standard static gravimetric method. The adsorption isotherms were determined at the temperatures of 28 ± 1°C under 0.11 to 0.90 water activity (aw) range. The adsorption isotherms of three composites flours were found to be type II (S-shaped), characteristic of high sugar products. The model of GAB adjusts well the data expériementeles for the isotherm of adsorption of three studied composite flours. A higher water content was observed in Horn 1 composite flour (FC (74.16 ± 0.04g H2O / 100g)) compared to PITA 3 composite flour (FP (68.38 ± 0.01g H2O / 100g)) and FHIA 21 composite flour (FF (66.37 ± 0.12g H2O / 100g)) of dry matter. The GAB monolayer moisture content (X0) (g H2O /100g dry matter) range from 6.086 g H2O / 100 g for FHIA 21 flour to 7.375g H2O /100 g for Horn 1 composite flour. That of PITA 3 composite flour was 6.443g H2O / 100g. These values were optimal in order to ensure safe storage condition. [ABSTRACT FROM AUTHOR]

Published
2018

176. A combination drift chamber/pad chamber for very high readout rates

Author

Spiegel, L., primary, Cataldi, G., additional, Elia, V., additional, Mazur, P., additional, Murphy, C.T., additional, Smith, R.P., additional, Yang, W., additional, Alexopoulos, T., additional, Durandet, C., additional, Erwin, A., additional, Jennings, J., additional, Antoniazzi, L., additional, Introzzi, G., additional, Lanza, A., additional, Liguori, G., additional, Torre, P., additional, Arenton, M., additional, Conetti, S., additional, Cox, B., additional, Dukes, E., additional, Golovatyuk, V., additional, Hanlet, P., additional, McManus, A., additional, Nelson, K., additional, Recagni, M., additional, Segal, J., additional, Sun, J., additional, Ballagh, C., additional, Bingham, H., additional, Kaeding, T., additional, Lys, J., additional, Misawa, S., additional, Blankman, A., additional, Borodin, S., additional, Kononenko, W., additional, Newcomer, M., additional, Selove, W., additional, Trojak, T., additional, VanBerg, R., additional, Zhang, S.N., additional, Block, M., additional, Corti, G., additional, LeCompte, T., additional, Rosen, J., additional, Yao, T., additional, Boden, A., additional, Cline, D., additional, Ramachandran, S., additional, Rhoades, J., additional, Tokar, S., additional, Budagov, J., additional, Tsyganov, E., additional, Cao, Z.L., additional, He, M., additional, Wang, C., additional, Wei, C., additional, Zhang, N., additional, Chen, T.Y., additional, Yao, N., additional, Clark, K., additional, Jenkins, M., additional, Cooper, M., additional, Creti, P., additional, Gorini, E., additional, Grancagnolo, F., additional, Panareo, M., additional, Fortney, L., additional, Kowald, W., additional, Haire, M., additional, Judd, D., additional, Turnbull, L., additional, Wagoner, D., additional, Lau, K., additional, Mo, G., additional, and Trischuk, J., additional

Published
1991
Full Text
View/download PDF

181. State-selective intersystem crossing in nitrogen-vacancy centers

Author

Goldman, M L, Doherty, Marcus, Sipahigil, Alp, Yao, N Y, Bennett, S D, Manson, Neil, Kubanek, A, Lukin, Mikhail D, Goldman, M L, Doherty, Marcus, Sipahigil, Alp, Yao, N Y, Bennett, S D, Manson, Neil, Kubanek, A, and Lukin, Mikhail D

Abstract

The intersystem crossing (ISC) is an important process in many solid-state atomlike impurities. For example, it allows the electronic spin state of the nitrogen-vacancy (NV) center in diamond to be initialized and read out using optical fields at ambient temperatures. This capability has enabled a wide array of applications in metrology and quantum information science. Here, we develop a microscopic model of the state-selective ISC from the optical excited state manifold of the NV center. By correlating the electron-phonon interactions that mediate the ISC with those that induce population dynamics within the NV center's excited state manifold and those that produce the phonon sidebands of its optical transitions, we quantitatively demonstrate that our model is consistent with recent ISC measurements. Furthermore, our model constrains the unknown energy spacings between the center's spin-singlet and spin-triplet levels. Finally, we discuss prospects to engineer the ISC in order to improve the spin initialization and readout fidelities of NV centers.

Published
2015

182. Phonon-induced population dynamics and intersystem crossing in nitrogen-vacancy centers

Author

Goldman, M L, Sipahigil, Alp, Doherty, Marcus, Yao, N Y, Bennett, S D, Markham, M., Twitchen, D J, Manson, Neil, Kubanek, A, Lukin, Mikhail D, Goldman, M L, Sipahigil, Alp, Doherty, Marcus, Yao, N Y, Bennett, S D, Markham, M., Twitchen, D J, Manson, Neil, Kubanek, A, and Lukin, Mikhail D

Abstract

We report direct measurement of population dynamics in the excited state manifold of a nitrogen-vacancy (NV) center in diamond. We quantify the phonon-induced mixing rate and demonstrate that it can be completely suppressed at low temperatures. Further, we measure the intersystem crossing (ISC) rate for different excited states and develop a theoretical model that unifies the phonon-induced mixing and ISC mechanisms. We find that our model is in excellent agreement with experiment and that it can be used to predict unknown elements of the NV center's electronic structure. We discuss the model's implications for enhancing the NV center's performance as a room-temperature sensor.

Published
2015

186. Realizing Africa's rice promise

Author

Ndjiondjop, M.N., Albar, Laurence, Sow, M., Yao, N., Djedatin, G., Thiemelé, D., Ghesquière, Alain, Wopereis, M.C.S. (ed.), Johnson, D.E. (ed.), Ahmadi, N. (ed.), Tollens, E. (ed.), and Jalloh, A. (ed.)

Subjects
PHYTOVIRUS, CULTIVAR, INTROGRESSION, AMELIORATION DES PLANTES, PROGRAMME DE RECHERCHE, HISTOIRE, BIOLOGIE MOLECULAIRE, DIVERSITE GENETIQUE, PROJET DE RECHERCHE, MALADIE DES PLANTES, ALLELE, SENSIBILITE RESISTANCE, MARQUEUR GENETIQUE, RIZ, CARTOGRAPHIE
Published
2013

187. Icosahedrite, Al63Cu24Fe13, the first natural quasicrystal

Author

Bindi, L (1)(2), Steinhardt, P.J (3)(4), Yao, N (5), and Lu, P.J (6)

Subjects
electron-microprobe data, new mineral, natural quasicrystal, cosahedrite
Abstract

Icosahedrite, ideally Al63Cu24Fe13, is a new mineral from the Khatyrka River, southeastern Chukhotka,Russia. It occurs as dark gray-black anhedral to subhedral grains up to 100 ?m across, closely associated with spinel, diopside, forsterite, nepheline, sodalite, corundum, stishovite, khatyrkite, cupalite, and an unnamed phase of composition AlCuFe. Icosahedrite is opaque with a metallic luster, possesses a gray streak, and is brittle with an uneven fracture. The density could not be determined. For quasicrystals, by definition, the structure is not reducible to a single three-dimensional unit cell, so neither cell parameters nor Z can be given. In plane-polarized incident light, icosahedrite exhibits neither bireflectance nor pleochroism. Between crossed polars, it is isotropic. Reflectance percentages (Rmin = Rmax) for the four standard COM wavelengths are 62.3 (471.1 nm), 60.6 (548.3 nm), 58.1 (586.6 nm), and 56.0 (652.3 nm), respectively. The X-ray powder pattern was indexed on the basis of six integer indices, as conventionally used with quasicrystals, where the lattice parameter (in six-dimensional notation) is measured to be a6D = 12.64 Å, with probable space group Fm3 5. The four strongest X-ray powder-diffraction lines [d in Å (I/I0) (n1,n2,n3,n4,n5,n6)] are: 2.006 (100) (420 042), 2.108 (90) (422 222), 1.238 (30) (604 064), and 3.41 (25) (311 111). Average results of 34 electron-microprobe analyses gave, on the basis of total atoms = 100, the formula Al63.11Cu24.02Fe12.78Si0.03Co0.01Ca0.01Zn0.01Cr0.02Cl0.01. The simplified formula is Al63Cu24Fe13, which requires the mass fractions Al 43.02, Cu 38.60, Fe 18.38, total 100.00 wt%. The new mineral is named for the icosahedral symmetry of its internal atomic structure, as observed in its diffraction pattern. Both the new mineral and mineral name have been approved by the Commission on New Minerals, Nomenclature and Classification, IMA (2010-042).

Published
2011

195. Microbicides Questionnaire

Author

Yao, N., primary, Zeng, Q., additional, Zhong, N.X., additional, Li, D.X., additional, Huang, L.A., additional, Shao, M.Y., additional, and Ruan, H.Y., additional

Published
2015
Full Text
View/download PDF

196. Interferometric Probes of Many-Body Localization

Author

Massachusetts Institute of Technology. Department of Physics, Serbyn, Maksym, Knap, M., Gopalakrishnan, S., Papic, Z., Yao, N. Y., Laumann, C. R., Abanin, Dmitry A., Lukin, Mikhail D., Demler, Eugene, Massachusetts Institute of Technology. Department of Physics, Serbyn, Maksym, Knap, M., Gopalakrishnan, S., Papic, Z., Yao, N. Y., Laumann, C. R., Abanin, Dmitry A., Lukin, Mikhail D., and Demler, Eugene

Abstract

We propose a method for detecting many-body localization (MBL) in disordered spin systems. The method involves pulsed coherent spin manipulations that probe the dephasing of a given spin due to its entanglement with a set of distant spins. It allows one to distinguish the MBL phase from a noninteracting localized phase and a delocalized phase. In particular, we show that for a properly chosen pulse sequence the MBL phase exhibits a characteristic power-law decay reflecting its slow growth of entanglement. We find that this power-law decay is robust with respect to thermal and disorder averaging, provide numerical simulations supporting our results, and discuss possible experimental realizations in solid-state and cold-atom systems., Harvard Quantum Optics Center, Harvard-MIT Center for Ultracold Atoms, United States. Defense Advanced Research Projects Agency. Optical Lattice Emulator Program, United States. Army Research Office. Multidisciplinary University Research Initiative. Atomtronics, United States. Air Force Office of Scientific Research. Multidisciplinary University Research Initiative. Quantum Simulation, United States. Army Research Office. Multidisciplinary University Research Initiative. Quism, Alfred P. Sloan Foundation

Published
2014

197. Many-Body Localization in Dipolar Systems

Author

Yao, N. Y., primary, Laumann, C. R., additional, Gopalakrishnan, S., additional, Knap, M., additional, Müller, M., additional, Demler, E. A., additional, and Lukin, M. D., additional

Published
2014
Full Text
View/download PDF

199. Steinhardtite, a new body-centered-cubic allotropic form of aluminum from the Khatyrka CV3 carbonaceous chondrite

Author

Bindi, L., primary, Yao, N., additional, Lin, C., additional, Hollister, L. S., additional, MacPherson, G. J., additional, Poirier, G. R., additional, Andronicos, C. L., additional, Distler, V. V., additional, Eddy, M. P., additional, Kostin, A., additional, Kryachko, V., additional, Steinhardt, W. M., additional, and Yudovskaya, M., additional

Published
2014
Full Text
View/download PDF

200. Expression of interferon-tau mRNA in bovine embryos derived from different procedures

Author

Y. Wu, Yang L, Chen H, Yao N, Shenming Zeng, Shen Liu, Ze-Dong Hao, Liu Jh, Gao Ff, Peng-Cheng Wan, and Mao-sheng Cui

Subjects
Nuclear Transfer Techniques, Parthenogenesis, Gene Expression, Gestational Age, In situ hybridization, Fertilization in Vitro, Biology, Pregnancy Proteins, Morula, Andrology, Endocrinology, Reproductive Techniques, Gene expression, medicine, Conceptus, Animals, Blastocyst, RNA, Messenger, reproductive and urinary physiology, Cryopreservation, Messenger RNA, Embryo, Molecular biology, Interferon tau, medicine.anatomical_structure, embryonic structures, Interferon Type I, Somatic cell nuclear transfer, Animal Science and Zoology, Cattle, Biotechnology
Abstract

Interferon-tau (IFN-tau) is a secreted conceptus protein which plays a critical role in the establishment of ruminant pregnancy by its antiluteolytic and antiviral effects. In the present study, we hypothesized that IFN-tau expression was temporally and spatially regulated in different pre-implantation embryos and the levels of IFN-tau expression were different among bovine embryos derived from parthenogenetic activation (PA), in vitro fertilization (IVF) and somatic cell nuclear transfer (SCNT). By using in situ hybridization with Digoxingenin (DIG)-labelled IFN-tau cDNA as a probe, we detected IFN-tau mRNA in bovine embryos from days 3 to 9 in culture. However, the timing of the initiation of IFN-tau mRNA expression was different among PA, IVF and SCNT embryos. Interferon-tau mRNA was first expressed in 16-cell stage IVF embryos on day 4, in SCNT morula on day 5 and early PA blastocyst on day 6. Semi-quantitative RT-PCR analysis showed that the expression levels of IFN-tau mRNA did not differ significantly among IVF, SCNT and PA embryos on day 7. In addition, freezing and thawing did not have a major impact either on IFN-tau mRNA expression in IVF or in vivo-produced bovine blastocysts.

Published
2008

Catalog

Books, media, physical & digital resources
See catalog results