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Impacts of R&D Expenditures On Firms' Innovation and Financial Performance: A Panel Data Evidence from Ethiopian Firms

workforce diversity

Mulugeta T.
GSID: qT8h4nN05wkJ
T Mulugeta - 2021 - researchsquare.com

In the era of the rapid development of knowledge economy and science, all countries have thought highly of technical innovation and greatly increased investment in R&D from time to …

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Mulugeta, T. (2021). Impacts of R&D Expenditures On Firms’ Innovation and Financial Performance: A Panel Data Evidence from Ethiopian Firms.
Mulugeta, Tsegaye. "Impacts of R&D Expenditures On Firms’ Innovation and Financial Performance: A Panel Data Evidence from Ethiopian Firms." (2021).
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Morphology of hydrothermally synthesized ZnO nanoparticles tethered to carbon nanotubes affects electrocatalytic activity for H.

Electrochimica acta

Wayu MB, Spidle RT, Devkota T, Deb AK, Delong RK, Ghosh KC, Wanekaya AK, Chusuei CC.
PMID: 25684785
Electrochim Acta. 2013 May 01;97:99-104. doi: 10.1016/j.electacta.2013.02.028.

We describe the synthesis of zinc oxide (ZnO) nanoparticles and demonstrate their attachment to multiwalled carbon tubes, resulting in a composite with a unique synergistic effect. Morphology and size of ZnO nanostructures were controlled using hydrothermal synthesis, varying the...

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Wayu MB, Spidle RT, Devkota T, et al. Morphology of hydrothermally synthesized ZnO nanoparticles tethered to carbon nanotubes affects electrocatalytic activity for H. Electrochim Acta. 2013;97:99-104doi: 10.1016/j.electacta.2013.02.028.
Wayu, M. B., Spidle, R. T., Devkota, T., Deb, A. K., Delong, R. K., Ghosh, K. C., Wanekaya, A. K., & Chusuei, C. C. (2013). Morphology of hydrothermally synthesized ZnO nanoparticles tethered to carbon nanotubes affects electrocatalytic activity for H. Electrochimica acta, 9799-104. https://doi.org/10.1016/j.electacta.2013.02.028
Wayu, Mulugeta B, et al. "Morphology of hydrothermally synthesized ZnO nanoparticles tethered to carbon nanotubes affects electrocatalytic activity for H." Electrochimica acta vol. 97 (2013): 99-104. doi: https://doi.org/10.1016/j.electacta.2013.02.028
Wayu MB, Spidle RT, Devkota T, Deb AK, Delong RK, Ghosh KC, Wanekaya AK, Chusuei CC. Morphology of hydrothermally synthesized ZnO nanoparticles tethered to carbon nanotubes affects electrocatalytic activity for H. Electrochim Acta. 2013 May 01;97:99-104. doi: 10.1016/j.electacta.2013.02.028. PMID: 25684785; PMCID: PMC4326222.
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Hidden phase in a two-dimensional Sn layer stabilized by modulation hole doping.

Nature communications

Ming F, Mulugeta D, Tu W, Smith TS, Vilmercati P, Lee G, Huang YT, Diehl RD, Snijders PC, Weitering HH.
PMID: 28266499
Nat Commun. 2017 Mar 07;8:14721. doi: 10.1038/ncomms14721.

Semiconductor surfaces and ultrathin interfaces exhibit an interesting variety of two-dimensional quantum matter phases, such as charge density waves, spin density waves and superconducting condensates. Yet, the electronic properties of these broken symmetry phases are extremely difficult to control...

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Ming F, Mulugeta D, Tu W, et al. Hidden phase in a two-dimensional Sn layer stabilized by modulation hole doping. Nat Commun. 2017;8:14721doi: 10.1038/ncomms14721.
Ming, F., Mulugeta, D., Tu, W., Smith, T. S., Vilmercati, P., Lee, G., Huang, Y. T., Diehl, R. D., Snijders, P. C., & Weitering, H. H. (2017). Hidden phase in a two-dimensional Sn layer stabilized by modulation hole doping. Nature communications, 814721. https://doi.org/10.1038/ncomms14721
Ming, Fangfei, et al. "Hidden phase in a two-dimensional Sn layer stabilized by modulation hole doping." Nature communications vol. 8 (2017): 14721. doi: https://doi.org/10.1038/ncomms14721
Ming F, Mulugeta D, Tu W, Smith TS, Vilmercati P, Lee G, Huang YT, Diehl RD, Snijders PC, Weitering HH. Hidden phase in a two-dimensional Sn layer stabilized by modulation hole doping. Nat Commun. 2017 Mar 07;8:14721. doi: 10.1038/ncomms14721. PMID: 28266499; PMCID: PMC5343494.
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Correction for Ebner et al., "Excreted Cytoplasmic Proteins Contribute to Pathogenicity in Staphylococcus aureus".

Infection and immunity

Ebner P, Rinker J, Nguyen MT, Popella P, Nega M, Luqman A, Schittek B, Di Marco M, Stevanovic S, Götz F.
PMID: 29150485
Infect Immun. 2017 Nov 17;85(12). doi: 10.1128/IAI.00641-17. Print 2017 Dec.

No abstract available.

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Ebner P, Rinker J, Nguyen MT, et al. Correction for Ebner et al., "Excreted Cytoplasmic Proteins Contribute to Pathogenicity in Staphylococcus aureus". Infect Immun. 2017;85(12)doi: 10.1128/IAI.00641-17.
Ebner, P., Rinker, J., Nguyen, M. T., Popella, P., Nega, M., Luqman, A., Schittek, B., Di Marco, M., Stevanovic, S., & Götz, F. (2017). Correction for Ebner et al., "Excreted Cytoplasmic Proteins Contribute to Pathogenicity in Staphylococcus aureus". Infection and immunity, 85(12), . https://doi.org/10.1128/IAI.00641-17
Ebner, Patrick, et al. "Correction for Ebner et al., "Excreted Cytoplasmic Proteins Contribute to Pathogenicity in Staphylococcus aureus"." Infection and immunity vol. 85,12 (2017). doi: https://doi.org/10.1128/IAI.00641-17
Ebner P, Rinker J, Nguyen MT, Popella P, Nega M, Luqman A, Schittek B, Di Marco M, Stevanovic S, Götz F. Correction for Ebner et al., "Excreted Cytoplasmic Proteins Contribute to Pathogenicity in Staphylococcus aureus". Infect Immun. 2017 Nov 17;85(12). doi: 10.1128/IAI.00641-17. Print 2017 Dec. PMID: 29150485; PMCID: PMC5695132.
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Evaluation of Ceftriaxone utilization in internal medicine wards of general hospitals in Addis Ababa, Ethiopia: a comparative retrospective study.

Journal of pharmaceutical policy and practice

Shimels T, Bilal AI, Mulugeta A.
PMID: 26557367
J Pharm Policy Pract. 2015 Nov 09;8:26. doi: 10.1186/s40545-015-0047-1. eCollection 2015.

OBJECTIVES: The irrational use of reserved antimicrobials, such as ceftriaxone, is one of the global public health issues particularly to low income countries like Ethiopia, leading to high costs of treatment or therapeutic failure. The purpose of the present...

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Shimels T, Bilal AI, Mulugeta A. Evaluation of Ceftriaxone utilization in internal medicine wards of general hospitals in Addis Ababa, Ethiopia: a comparative retrospective study. J Pharm Policy Pract. 2015;8:26doi: 10.1186/s40545-015-0047-1.
Shimels, T., Bilal, A. I., & Mulugeta, A. (2015). Evaluation of Ceftriaxone utilization in internal medicine wards of general hospitals in Addis Ababa, Ethiopia: a comparative retrospective study. Journal of pharmaceutical policy and practice, 826. https://doi.org/10.1186/s40545-015-0047-1
Shimels, Tariku, et al. "Evaluation of Ceftriaxone utilization in internal medicine wards of general hospitals in Addis Ababa, Ethiopia: a comparative retrospective study." Journal of pharmaceutical policy and practice vol. 8 (2015): 26. doi: https://doi.org/10.1186/s40545-015-0047-1
Shimels T, Bilal AI, Mulugeta A. Evaluation of Ceftriaxone utilization in internal medicine wards of general hospitals in Addis Ababa, Ethiopia: a comparative retrospective study. J Pharm Policy Pract. 2015 Nov 09;8:26. doi: 10.1186/s40545-015-0047-1. eCollection 2015. PMID: 26557367; PMCID: PMC4638109.
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Silicon hybrid (de)multiplexer enabling simultaneous mode and wavelength-division multiplexing.

Optics express

Mulugeta T, Rasras M.
PMID: 25835853
Opt Express. 2015 Jan 26;23(2):943-9. doi: 10.1364/OE.23.000943.

On-chip simultaneous mode and wavelength division-multiplexing (MWDM) is proposed using a tapered directional coupler and multimode interference (MMI) waveguide. A simulation is performed on the two different MWDM architectures, in which, two waveguide eigenmodes and two wavelength channels (1310/1550nm)...

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Mulugeta T, Rasras M. Silicon hybrid (de)multiplexer enabling simultaneous mode and wavelength-division multiplexing. Opt Express. 2015;23(2):943-9doi: 10.1364/OE.23.000943.
Mulugeta, T., & Rasras, M. (2015). Silicon hybrid (de)multiplexer enabling simultaneous mode and wavelength-division multiplexing. Optics express, 23(2), 943-9. https://doi.org/10.1364/OE.23.000943
Mulugeta, Tadesse, and Rasras, Mahmoud. "Silicon hybrid (de)multiplexer enabling simultaneous mode and wavelength-division multiplexing." Optics express vol. 23,2 (2015): 943-9. doi: https://doi.org/10.1364/OE.23.000943
Mulugeta T, Rasras M. Silicon hybrid (de)multiplexer enabling simultaneous mode and wavelength-division multiplexing. Opt Express. 2015 Jan 26;23(2):943-9. doi: 10.1364/OE.23.000943. PMID: 25835853.
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Coherent differential absorption lidar measurements of CO2.

Applied optics

Koch GJ, Barnes BW, Petros M, Beyon JY, Amzajerdian F, Yu J, Davis RE, Ismail S, Vay S, Kavaya MJ, Singh UN.
PMID: 15468711
Appl Opt. 2004 Sep 10;43(26):5092-9. doi: 10.1364/ao.43.005092.

A differential absorption lidar has been built to measure CO2 concentration in the atmosphere. The transmitter is a pulsed single-frequency Ho:Tm:YLF laser at a 2.05-microm wavelength. A coherent heterodyne receiver was used to achieve sensitive detection, with the additional...

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Koch GJ, Barnes BW, Petros M, et al. Coherent differential absorption lidar measurements of CO2. Appl Opt. 2004;43(26):5092-9doi: 10.1364/ao.43.005092.
Koch, G. J., Barnes, B. W., Petros, M., Beyon, J. Y., Amzajerdian, F., Yu, J., Davis, R. E., Ismail, S., Vay, S., Kavaya, M. J., & Singh, U. N. (2004). Coherent differential absorption lidar measurements of CO2. Applied optics, 43(26), 5092-9. https://doi.org/10.1364/ao.43.005092
Koch, Grady J, et al. "Coherent differential absorption lidar measurements of CO2." Applied optics vol. 43,26 (2004): 5092-9. doi: https://doi.org/10.1364/ao.43.005092
Koch GJ, Barnes BW, Petros M, Beyon JY, Amzajerdian F, Yu J, Davis RE, Ismail S, Vay S, Kavaya MJ, Singh UN. Coherent differential absorption lidar measurements of CO2. Appl Opt. 2004 Sep 10;43(26):5092-9. doi: 10.1364/ao.43.005092. PMID: 15468711.
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Applications of the Poly-K Statistical Test to Life-Time Cancer Bioassay Studies.

Human and ecological risk assessment : HERA

Gebregziabher M, Hoel D.
PMID: 20508734
Hum Ecol Risk Assess. 2009 Sep 01;15(5):858-875. doi: 10.1080/10807030903153360.

The statistical analysis of cancer bioassay data has historically depended on the pathological determination of the experimental animal's cause of death. The poly-k statistical test has provided a method of statistical analysis of animal bioassay data without the need...

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Gebregziabher M, Hoel D. Applications of the Poly-K Statistical Test to Life-Time Cancer Bioassay Studies. Hum Ecol Risk Assess. 2009;15(5):858-875doi: 10.1080/10807030903153360.
Gebregziabher, M., & Hoel, D. (2009). Applications of the Poly-K Statistical Test to Life-Time Cancer Bioassay Studies. Human and ecological risk assessment : HERA, 15(5), 858-875. https://doi.org/10.1080/10807030903153360
Gebregziabher, Mulugeta, and Hoel, David. "Applications of the Poly-K Statistical Test to Life-Time Cancer Bioassay Studies." Human and ecological risk assessment : HERA vol. 15,5 (2009): 858-875. doi: https://doi.org/10.1080/10807030903153360
Gebregziabher M, Hoel D. Applications of the Poly-K Statistical Test to Life-Time Cancer Bioassay Studies. Hum Ecol Risk Assess. 2009 Sep 01;15(5):858-875. doi: 10.1080/10807030903153360. PMID: 20508734; PMCID: PMC2874903.
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1 J/pulse Q-switched 2 microm solid-state laser.

Optics letters

Yu J, Trieu BC, Modlin EA, Singh UN, Kavaya MJ, Chen S, Bai Y, Petzar PJ, Petros M.
PMID: 16496887
Opt Lett. 2006 Feb 15;31(4):462-4. doi: 10.1364/ol.31.000462.

Q-switched output of 1.1 J/pulse at a 2.053 microm wavelength has been achieved in a diode-pumped Ho: Tm: LuLF laser with a side-pumped rod configuration in a master-oscillator-power-amplifier (MOPA) architecture. This is the first time to our knowledge that...

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Yu J, Trieu BC, Modlin EA, et al. 1 J/pulse Q-switched 2 microm solid-state laser. Opt Lett. 2006;31(4):462-4doi: 10.1364/ol.31.000462.
Yu, J., Trieu, B. C., Modlin, E. A., Singh, U. N., Kavaya, M. J., Chen, S., Bai, Y., Petzar, P. J., & Petros, M. (2006). 1 J/pulse Q-switched 2 microm solid-state laser. Optics letters, 31(4), 462-4. https://doi.org/10.1364/ol.31.000462
Yu, Jirong, et al. "1 J/pulse Q-switched 2 microm solid-state laser." Optics letters vol. 31,4 (2006): 462-4. doi: https://doi.org/10.1364/ol.31.000462
Yu J, Trieu BC, Modlin EA, Singh UN, Kavaya MJ, Chen S, Bai Y, Petzar PJ, Petros M. 1 J/pulse Q-switched 2 microm solid-state laser. Opt Lett. 2006 Feb 15;31(4):462-4. doi: 10.1364/ol.31.000462. PMID: 16496887.
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[Relatives and the meeting with living death].

Lakartidningen

Mulugeta E.
PMID: 19967970
Lakartidningen. 2009 Oct 28-Nov 3;106(44):2867-9.

No abstract available.

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Mulugeta E. Den anhörige och mötet med den levande döden. [Relatives and the meeting with living death]. Lakartidningen. 2009;106(44):2867-9
Mulugeta, E. (2009). Den anhörige och mötet med den levande döden. [Relatives and the meeting with living death]. Lakartidningen, 106(44), 2867-9.
Mulugeta, Elsa. "Den anhörige och mötet med den levande döden." [Relatives and the meeting with living death]. Lakartidningen vol. 106,44 (2009): 2867-9.
Mulugeta E. Den anhörige och mötet med den levande döden. [Relatives and the meeting with living death]. Lakartidningen. 2009 Oct 28-Nov 3;106(44):2867-9. Swedish. PMID: 19967970.
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Side-line tunable laser transmitter for differential absorption lidar measurements of CO2: design and application to atmospheric measurements.

Applied optics

Koch GJ, Beyon JY, Gibert F, Barnes BW, Ismail S, Petros M, Petzar PJ, Yu J, Modlin EA, Davis KJ, Singh UN.
PMID: 18311266
Appl Opt. 2008 Mar 01;47(7):944-56. doi: 10.1364/ao.47.000944.

A 2 microm wavelength, 90 mJ, 5 Hz pulsed Ho laser is described with wavelength control to precisely tune and lock the wavelength at a desired offset up to 2.9 GHz from the center of a CO(2) absorption line....

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Koch GJ, Beyon JY, Gibert F, et al. Side-line tunable laser transmitter for differential absorption lidar measurements of CO2: design and application to atmospheric measurements. Appl Opt. 2008;47(7):944-56doi: 10.1364/ao.47.000944.
Koch, G. J., Beyon, J. Y., Gibert, F., Barnes, B. W., Ismail, S., Petros, M., Petzar, P. J., Yu, J., Modlin, E. A., Davis, K. J., & Singh, U. N. (2008). Side-line tunable laser transmitter for differential absorption lidar measurements of CO2: design and application to atmospheric measurements. Applied optics, 47(7), 944-56. https://doi.org/10.1364/ao.47.000944
Koch, Grady J, et al. "Side-line tunable laser transmitter for differential absorption lidar measurements of CO2: design and application to atmospheric measurements." Applied optics vol. 47,7 (2008): 944-56. doi: https://doi.org/10.1364/ao.47.000944
Koch GJ, Beyon JY, Gibert F, Barnes BW, Ismail S, Petros M, Petzar PJ, Yu J, Modlin EA, Davis KJ, Singh UN. Side-line tunable laser transmitter for differential absorption lidar measurements of CO2: design and application to atmospheric measurements. Appl Opt. 2008 Mar 01;47(7):944-56. doi: 10.1364/ao.47.000944. PMID: 18311266.
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State-resolved investigation of the photodesorption dynamics of NO from (NO)2 on Ag nanoparticles of various sizes in comparison with Ag(111).

The Journal of chemical physics

Mulugeta D, Watanabe K, Menzel D, Freund HJ.
PMID: 21528976
J Chem Phys. 2011 Apr 28;134(16):164702. doi: 10.1063/1.3581802.

The translational and internal state energy distributions of NO desorbed by laser light (2.3, 3.5, and 4.7 eV) from adsorbed (NO)(2) on Ag nanoparticles (NPs) (mean diameters, D = 4, 8, and 11 nm) have been investigated by the...

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Mulugeta D, Watanabe K, Menzel D, et al. State-resolved investigation of the photodesorption dynamics of NO from (NO)2 on Ag nanoparticles of various sizes in comparison with Ag(111). J Chem Phys. 2011;134(16):164702doi: 10.1063/1.3581802.
Mulugeta, D., Watanabe, K., Menzel, D., & Freund, H. J. (2011). State-resolved investigation of the photodesorption dynamics of NO from (NO)2 on Ag nanoparticles of various sizes in comparison with Ag(111). The Journal of chemical physics, 134(16), 164702. https://doi.org/10.1063/1.3581802
Mulugeta, Daniel, et al. "State-resolved investigation of the photodesorption dynamics of NO from (NO)2 on Ag nanoparticles of various sizes in comparison with Ag(111)." The Journal of chemical physics vol. 134,16 (2011): 164702. doi: https://doi.org/10.1063/1.3581802
Mulugeta D, Watanabe K, Menzel D, Freund HJ. State-resolved investigation of the photodesorption dynamics of NO from (NO)2 on Ag nanoparticles of various sizes in comparison with Ag(111). J Chem Phys. 2011 Apr 28;134(16):164702. doi: 10.1063/1.3581802. PMID: 21528976.
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Showing 1 to 12 of 363 entries