Search results

1

Global and distributed torque calculations using the CDSA approach

100%

Li M., Lowther D.

Archives of Electrical Engineering

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2011

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vol. 60

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issue 4

2

Charge-Density-Wave Origin of Dip-Hump Structures in the Tunnel Spectra of Bi_2Sr_2CaCu_2O_{8+δ}

61%

Ekino T., Gabovich A., Li M., Pękała M., Szymczak H., Voitenko A.

Acta Physica Polonica A

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2007

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vol. 111

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issue 4

573-580

EN

We calculated the differential conductance G as the function of the bias voltage V across the tunnel junction between a normal metal or a conventional superconductor and an inhomogeneous superconductor with charge density waves. Spatial averaging over random domains with varying superconducting and normal state properties was carried out. For high-T_c oxides, irregularly distorted charge density wave patterns with spatially scattered values of various parameters were earlier shown to manifest themselves in a great body of experimental data. The results of calculation were applied to explain the well-known dip-hump structure in the G(V) dependence for Bi_2Sr_2CaCu_2O_{8+δ} and other cuprates.

3

Signal transduction in human pancreatic cancer: roles of transforming growth factor beta, somatostatin receptors, and other signal intermediates

61%

Li M., Becnel L. S., Li W., Fisher W. E., Chen C., Yao Q.

Archivum Immunologiae et Therapiae Experimentalis

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2005

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vol. 53

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issue 5

381-387

EN

Pancreatic cancer is a devastating disease because of the lack of early detection markers and effective treatments. It is the fourth leading cause of cancer-related death in western countries, including the United States. The mechanisms of pancreatic cancer progression remain unknown. Transforming growth factor beta (TGF-beta), a multifunctional cytokine, regulates cell growth and differentiation in healthy tissues, yet fails to do so in pancreatic cancer. Alterations of the TGF-beta and TGF-beta receptor/Smad signal transduction pathway have been implicated in pancreatic cancer. Furthermore, both the TGF-beta receptor and Smad proteins interact with a variety of cellular signal pathways, such as the somatostatin receptors (SSTRs), ERK1/2, and Wnt signal transduction cascades. This suggests that pancreatic cancer is a multi-gene-controlled malignancy and that effective treatments for pancreatic cancer should be aimed at multiple targets. In this review, we summarized the major signal intermediates involved in pancreatic cancer signal transduction pathways and specifically discussed how alterations in the regulatory functions of TGF-beta and Smad proteins allow for pancreatic carcinogenesis.

4

Mechanism of Radiative Mn^{2+} Intra-Shell Recombination in Bulk ZnMnS

61%

Ivanov V., Godlewski M., Yatsunenko S., Khachapuridze A., Li M., Gołacki Z.

Acta Physica Polonica A

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2001

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vol. 100

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issue 3

351-355

EN

Origin of a fast component of the photoluminescence decay of Mn^{2+} intra-shell ^4T_1 → ^6A_1 transition is discussed based on the results of photoluminescence, photoluminescence kinetics and optically detected magnetic resonance experiments performed for bulk ZnMnS samples with about 1% Mn fraction. It is demonstrated that a fast component of the photoluminescence decay, reported previously for quantum dot structure and related to quantum confinement effects, is also observed in bulk samples and is related by us to very efficient spin cross-relaxation effects.

5

The Effect of Nb Content on the Thermal, Structural, and Magnetic Properties of FeNbB Ribbons

52%

Hua Z., Zuo B., Li M., Wang X., Wang L., Liu J., Wang D., Dong L.

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vol. 125

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issue 5

1149-1151

EN

Amorphous Fe_{80-x}Nb_{x}B_{20} (x = 5, 10, 15) ribbons were prepared by single-roller melt spinning method. The thermal, structural and magnetic properties of Fe_{80-x}Nb_{x}B_{20} (x = 5, 10, 15) ribbons were investigated using differential thermal analysis, X-ray diffraction, and vibrating sample magnetometer. The thermal stability is the lowest for Fe_{70}Nb_{10}B_{20} ribbon and the highest for Fe_{65}Nb_{15}B_{20} ribbon. Along with the increase of Nb content, the supercooled liquid region Δ T_{x} increases, indicating that the amorphous formation ability improves. The primary stages of crystallization of the three ribbons are different. The primary devitrification phases are Fe_{23}B_6 type for Fe_{70}Nb_{10}B_{20} and Fe_{75}Nb_5B_{20} ribbons, and α-Fe type for Fe_{65}Nb_{15}B_{20} ribbon. Fe_{80-x}Nb_{x}B_{20} (x = 5, 10) ribbons are ferromagnetic and the Fe_{65}Nb_{15}B_{20} ribbon is paramagnetic. The saturation magnetization (M_{s}) decreases with increasing Nb content.

6

Theoretical Analysis of the TE Mode Cerenkov Type Second Harmonic Generation in Ion-Implanted X-Cut Lithium Niobate Planar Waveguides

52%

Du G., Li G., Zhao S., Qiao W., Yang K., An J., Li M., Wang J., Wang W.

Acta Physica Polonica A

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2009

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vol. 115

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issue 3

685-689

EN

We present a study of the Cerenkov configuration second harmonic generation in X-cut ion-implanted lithium niobate waveguides. An approximate solution of conversion efficiency is given and plotted which shows that it is very sensitive to the waveguide depth and pump wavelength. The results can be used in the design of waveguides for the efficient second harmonic generation in the Cerenkov configuration.

7

Bacterial communities in PM2.5 and PM10 in broiler houses at different broiler growth stages in spring

45%

Zhang J., Li Y., Xu E., Jiang L., Tang J., Li M., Zhao X., Chen G., Zhu H., Yu X., Zhang X., Zhang J., Li Y., Xu E., Jiang L., Tang J., Li M., Zhao X., Chen G., Zhu H., Yu X., Zhang X.

Polish Journal of Veterinary Sciences

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2019

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issue 3

Refine search results

Global and distributed torque calculations using the CDSA approach

Charge-Density-Wave Origin of Dip-Hump Structures in the Tunnel Spectra of Bi_2Sr_2CaCu_2O_{8+δ}

Signal transduction in human pancreatic cancer: roles of transforming growth factor beta, somatostatin receptors, and other signal intermediates

Mechanism of Radiative Mn^{2+} Intra-Shell Recombination in Bulk ZnMnS

The Effect of Nb Content on the Thermal, Structural, and Magnetic Properties of FeNbB Ribbons

Theoretical Analysis of the TE Mode Cerenkov Type Second Harmonic Generation in Ion-Implanted X-Cut Lithium Niobate Planar Waveguides

Bacterial communities in PM2.5 and PM10 in broiler houses at different broiler growth stages in spring