16 Result(s)

Article

Recent technological and strategical developments in the biomanufacturing of 1,3-propanediol from glycerol

In the pursuit of sustainable development, there is a rapid increase in the generation of biodiesel, which eventually results in the synthesis of glycerol as a major by-product. The surplus amount of glycerol ...

E. Fokum, H. M. Zabed, J. Yun, G. Zhang… in International Journal of Environmental Sci… (2021)

Article

Disruption of CTCF/cohesin-mediated high-order chromatin structures by DNA methylation downregulates PTGS2 expression

The CCCTC-binding factor (CTCF)/cohesin complex regulates gene transcription via high-order chromatin organization of the genome. De novo methylation of CpG islands in the promoter region is an epigenetic hallmar...

J Y Kang, S H Song, J Yun, M S Jeon, H P Kim, S W Han, T Y Kim in Oncogene (2015)

Article

Selective activation of Akt1 by mammalian target of rapamycin complex 2 regulates cancer cell migration, invasion, and metastasis

Mammalian target of rapamycin complex (mTORC) regulates a variety of cellular responses including proliferation, growth, differentiation and cell migration. In this study, we show that mammalian target of rapa...

E K Kim, S J Yun, J M Ha, Y W Kim, I H **, J Yun, H K Shin, S H Song, J H Kim… in Oncogene (2011)

Article

Akt2, but not Akt1, is required for cell survival by inhibiting activation of JNK and p38 after UV irradiation

The serine/threonine protein kinase, Akt/PKB, has an essential function in cell survival during response to various stresses. Recent studies have demonstrated that Akt isoforms exhibit some distinct physiologi...

M-A Kim, H-J Kim, H J Jee, A J Kim, Y-S Bae, S S Bae, J Yun in Oncogene (2009)

Article

Notch-1 associates with IKKα and regulates IKK activity in cervical cancer cells

Notch-1 inhibits apoptosis in some transformed cells through incompletely understood mechanisms. Notch-1 can increase nuclear factor-kappa B (NF-κB) activity through a variety of mechanisms. Overexpression of ...

L L Song, Y Peng, J Yun, P Rizzo, V Chaturvedi, S Weijzen, W M Kast… in Oncogene (2008)

Article

Pioglitazone, a synthetic ligand for PPARγ, induces apoptosis in RB-deficient human colorectal cancer cells

No published data are available about the expression of peroxisome proliferator-activated receptor γ (PPARγ) and the role of PPARγ in retinoblastoma protein (RB)-deficient human colorectal cancer (CRC) cells (...

C. J. Lee, J. S. Han, C. Y. Seo, T. H. Park, H. C. Kwon, J. S. Jeong… in Apoptosis (2006)

Article

Interface Properties of Al/Ni Multilayers as Deposited and Following Volume Combustion Synthesis

We report a volume combustion synthesis study of Al/Ni multilayers. The alternating layers of pure Al and pure Ni were grown on silicon and glass substrates using electron beam evaporation. Layers of equal thi...

M. Holtz, D. Aurongzeb, M. Daugherty, A. Chandolu, J. Yun… in MRS Online Proceedings Library (2003)

Article

Preparation of Optoelectronic Devices Based on AlN/AlGaN Superlattices

We present results on growth and fabrication experiments of AlN/AlGaN superlattices for ultraviolet (UV) optoelectronic devices. Superlattices with extremely short periods have been studied. The AlN “barrier” ...

M. Holtz, G. Kipshidze, A. Chandolu, J. Yun, B. Borisov… in MRS Online Proceedings Library (2003)

Article

Preparation of nano-sized precipitated calcium carbonate for PVC plastisol rheology modification

H. Zhang, J. F. Chen, H. K. Zhou, G. Q. Wang… in Journal of Materials Science Letters (2002)

Article

Micro-Raman Scattering From Hexagonal GaN, AlN, and Al_xGa_1−x}N Grown on (111) Oriented Silicon: Stress Map** of Cracks

We report post-growth micro-Raman stress map** of cracks in GaN, AlN, and Al_xGa_1−xN grown on (111) oriented silicon. Cracks with an average spacing of ~ 100 μm are observed. These cracks are categorized into tw...

C. Ramkumar, T. Prokofyeva, M. Seon, M. Holtz, K. Choi… in MRS Online Proceedings Library (2001)

Article

Changes in morphology of Paecilomyces japonica and their effect on broth rheology during production of exo-biopolymers

The influence of Paecilomyces japonica pellet morphology on fermentation broth rheology and exo-biopolymer production was investigated in a 5-l jar fermenter. Rapid formation of pellets was observed after the f...

J. Sinha, J. Bae, J. Park, K. Kim, C. Song… in Applied Microbiology and Biotechnology (2001)

Article

Deformation mechanism map for creep in YBa₂Cu₃O_7−x

A deformation mechanism map with grain size and stress as variables was constructed for creep in YBa₂Cu₃O_7−xat 850 and 950 °C. Theoretical models of Nabarro-Herring, Coble, and power-law creep were used for the c...

J. Yun, M. P. Harmer, Y. T. Chou in Journal of Materials Science (1995)

Article

Chemical etching for fine-grained YBa₂Cu₃O_7-x

J. Yun, G. Güven, Y. T. Chu in Journal of Materials Science Letters (1993)

Article

Studies on the thyroid in transgenic mice expressing the genes for human and bovine growth hormone

The thyroid glands of transgenic mice (TM) expressing the genes for human (h) and bovine (b) growth hormone (GH) were studied. The percentages of larger follicles inhGH TM of either sex were significantly greater...

A. Mayerhofer, S. Easterly, A. G. Amador, J. Gher, A. Bartke, J. Yun… in Experientia (1990)