Results 31 to 40 of about 4,770 (153)

Symmetry classes of alternating sign matrices in the nineteen-vertex model

, 2016
The nineteen-vertex model on a periodic lattice with an anti-diagonal twist is investigated. Its inhomogeneous transfer matrix is shown to have a simple eigenvalue, with the corresponding eigenstate displaying intriguing combinatorial features.
Hagendorf, Christian, Morin-Duchesne, Alexi   +1 more
core   +1 more source

Common genetic polymorphisms of microRNA biogenesis pathway genes and breast cancer survival

BMC Cancer, 2012
Background Although the role of microRNA’s (miRNA’s) biogenesis pathway genes in cancer development and progression has been well established, the association between genetic variants of this pathway genes and breast cancer survival is still unknown ...
Sung Hyuna, Jeon Sujee, Lee Kyoung-Mu, Han Sohee, Song Minkyo, Choi Ji-Yeob, Park Sue K, Yoo Keun-Young, Noh Dong-Young, Ahn Sei-Hyun, Kang Daehee   +10 more
doaj   +1 more source

Hardware Impairments in Large-scale MISO Systems: Energy Efficiency, Estimation, and Capacity Limits [PDF]

, 2013
The use of large-scale antenna arrays has the potential to bring substantial improvements in energy efficiency and/or spectral efficiency to future wireless systems, due to the greatly improved spatial beamforming resolution.
Björnson, Emil, Debbah, Mérouane, Hoydis, Jakob, Kountouris, Marios   +3 more
core   +4 more sources

HIWI is associated with prognosis in patients with hepatocellular carcinoma after curative resection [PDF]

Cancer, 2011
AbstractBACKGROUND:PIWI protein family was found to play an important role in stem cell self‐renewal. Overexpression of HIWI, the human homolog of PIWI family proteins, was found in several solid tumors, although the role of HIWI in hepatocellular carcinoma (HCC) and its prognostic value remain unclear.METHODS:HIWI expression was measured in stepwise ...
Yi-Ming, Zhao, Jia-Min, Zhou, Long-Rong, Wang, Hong-Wei, He, Xi-Long, Wang, Zhong-Hua, Tao, Hui-Chuan, Sun, Wei-Zhong, Wu, Jia, Fan, Zhao-You, Tang, Lu, Wang   +10 more
openaire   +2 more sources

Silencing HIWI suppresses the growth, invasion and migration of glioma cells

International Journal of Oncology, 2014
The HIWI gene is one of the members of the PIWI gene family that is important for stem cell self‑renewal and expressed highly in certain human tumors. Some studies have demonstrated that HIWI plays a key role in the development of tumors in cervical, colon and liver cancer.
Xiuyu, Wang, Xiaoguang, Tong, Hongmei, Gao, Xiaoling, Yan, Xinnv, Xu, Shupeng, Sun, Qiong, Wang, Jinhuan, Wang   +7 more
openaire   +3 more sources

Disrupted spaces: Racism and the lived experience of Maori identity formation [PDF]

, 2008
In 2004, when Don Brash –then leader of the National Party, hit the headlines with his controversial ‘Orewa’ speech, so-called ‘mainstream’ New Zealanders, felt that at last they had their hero.
Te Hiwi, Erika
core   +1 more source

Divergent estimation error in portfolio optimization and in linear regression

, 2007
The problem of estimation error in portfolio optimization is discussed, in the limit where the portfolio size N and the sample size T go to infinity such that their ratio is fixed. The estimation error strongly depends on the ratio N/T and diverges for a
B. Scherer, E.J. Elton, H. Markovitz, I. Kondor, I. Kondor, I. Varga-Haszonits, I. Varga-Haszonits, R. Jagannathan, S. Ciliberti, S. Kirkpatrick, S. Pafka, S. Pafka, Z. Burda   +12 more
core   +2 more sources

Reactivity of a NiO/Al2O3 oxygen carrier prepared by impregnation for chemical-looping combustion [PDF]

, 2010
Available online April 8,2010The reactivity of a Ni-based oxygen carried prepared by hot incipient wetness impregnation (HIWI) on -Al2O3 with a NiO content of wt% was studied in this work.
Dueso, Cristina, Abad Secades, Alberto, García Labiano, Francisco, García Labiano, Francisco, Diego Poza, Luis F. de, Gayán Sanz, Pilar, Adánez Elorza, Juan, Lyngfelt, Anders   +7 more
core   +1 more source

PIWIL1 suppresses circadian rhythms through GSK3β‐induced phosphorylation and degradation of CLOCK and BMAL1 in cancer cells

Journal of Cellular and Molecular Medicine, Volume 23, Issue 7, Page 4689-4698, July 2019., 2019
Abstract Circadian rhythms are maintained by series of circadian clock proteins, and post‐translation modifications of clock proteins significantly contribute to regulating circadian clock. However, the underlying upstream mechanism of circadian genes that are responsible for circadian rhythms in cancer cells remains unknown.
Hao Tan, Yingchuan Zhu, Xulei Zheng, Yilu Lu, Dachang Tao, Yunqiang Liu, Yongxin Ma   +6 more
wiley   +1 more source

Overexpression of Argonaute HIWI Gene in Colorectal Cancer Stem Cells and Colorectal Cancerous Tissue [PDF]

, 2022
Abstract Background: Recent studies have shown that Hiwi has a crucial role in stem cell self-renewal in various organisms and it is also associated with some cancers. In the present study, Hiwi expression was examined in different grades of primary human colorectal cancer (CRC), colorectal cancer stem cells (CRCSCs) and HT-29 CRC cell line ...
Soheila Moeini, Eisa Tahmasbpour Marzouni, Asghar Beigi Harchegani, Mahdi Ghatrehsamani, Saeid Rahmanzadeh   +4 more
openaire   +1 more source