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144 papers found.
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Reconciling the father tongue and mother tongue hypotheses in Indo-European populations

In opposition to the mother tongue hypothesis, the father tongue hypothesis states that humans tend to speak their fathers’ language, based on a stronger correlation of languages to paternal lineages (Y-chromosome) than to maternal lineages (mitochondria). To reassess these two competing hypotheses, we conducted a genetic–linguistic study of 34 modern Indo-European (IE...

SAMU: design and implementation of frequency selectivity-aware multi-user MIMO for WLANs

The traffic demand of wireless networks is expected to increase 1000-fold over the next decade. In anticipation of such increasing data demand for dense networks with a large number of stations, IEEE 802.11ax has introduced key technologies for capacity improvement including Orthogonal Frequency-Division Multiple Access (OFDMA), multi-user multi-input multi-output (MU-MIMO), and...

Controller design for bilinear systems with parametric uncertainties

This paper studies the problem of robust control of a class of uncertain bilinear continuous-time systems. The class of uncertain systems is described by a state space model with time-varying norm-bounded parameter uncertainty in the state equation. We address the problem of robust H∞ control in which both robust stability and a prescribed H∞ performance are required to be...

Controller design for bilinear systems with parametric uncertainties

This paper studies the problem of robust control of a class of uncertain bilinear continuous-time systems. The class of uncertain systems is described by a state space model with time-varying norm-bounded parameter uncertainty in the state equation. We address the problem of robust H∞ control in which both robust stability and a prescribed H∞ performance are required to be...

NETO2 promotes invasion and metastasis of gastric cancer cells via activation of PI3K/Akt/NF-κB/Snail axis and predicts outcome of the patients

Aberrant expression of neuropilin and tolloid-like 2 (NETO2) has been observed during the progression of some human carcinomas. However, the expression pattern and clinical relevance of NETO2 in gastric cancer (GC) remain to be elucidated. In this study, we found that NETO2 expression was higher in GC tissues compared with paired non-cancerous tissues. Moreover, the expression of...

Effect of Atmospheric Pressure on Performance of AEA and Air Entraining Concrete

Yan Shi; nc.irsrc.liam@nayihs Received 7 November 2017; Accepted 31 January 2018; Published 21 March 2018 Academic Editor: Claudio Pettinari Copyright © 2018 Yan Shi et al. This is an open access

Theory and Application of Audio-Based Assessment of Cough

, Beijing 100191, China Correspondence should be addressed to Yan Shi; nc.ude.aaub@nayihs and Weiqing Xu; nc.ude.aaub@ux.gniqiew Received 17 August 2017; Accepted 27 November 2017; Published 6 March 2018 ... Academic Editor: Mucheol Kim Copyright © 2018 Yan Shi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and

Theory and Application of Audio-Based Assessment of Cough

, Beijing 100191, China Correspondence should be addressed to Yan Shi; nc.ude.aaub@nayihs and Weiqing Xu; nc.ude.aaub@ux.gniqiew Received 17 August 2017; Accepted 27 November 2017; Published 6 March 2018 ... Academic Editor: Mucheol Kim Copyright © 2018 Yan Shi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and

The ovarian estrogen synthesis function was impaired in Y123F mouse and partly restored by exogenous FSH supplement

LepR tyrosine site mutation mice (Y123F) exhibit decreased serum E2 levels, immature reproductive organs, infertility as well as metabolic abnormalities. Although the actions of leptin and lepR in the control of reproductive function are thought to be exerted mainly via the hypothalamic-pituitary-gonadal axis, relatively less is known regarding their local effects on the...

Optimization Study on Expansion Energy Used Air-Powered Vehicle with Pneumatic-Hydraulic Transmission

‑ electronic from Beihang University, China, in 2015. Yan Shi born in 1981, is currently an associate professor at School of Automation Science and Electrical Engineering, Beihang University, China. He received

Role of intestinal trefoil factor in protecting intestinal epithelial cells from burn-induced injury

Although intestinal trefoil factor (ITF) can alleviate the burn-induced intestinal mucosa injury, the underlying mechanisms remains elusive. In this study, we investigated if ITF alters glutamine transport on the brush border membrane vesicles (BBMVs) of the intestines in Sprague-Dawley rats inflicted with 30% TBSA and the underlying mechanisms. We found that ITF significantly...

The origin and adaptive evolution of domesticated populations of yeast from Far East Asia

, 100101, ChinaShou-Fu Duan, Pei-Jie Han, Qi-Ming Wang, Wan-Qiu Liu, Jun-Yan Shi, Kuan Li, Xiao-Ling Zhang & Feng-Yan BaiCollege of Life Sciences, University of Chinese Academy of Sciences, No.19(A) Yuquan ... Road, Shijingshan District, Beijing, 100049, ChinaShou-Fu Duan, Jun-Yan Shi & Feng-Yan Bai AuthorsSearch for Shou-Fu Duan in:Nature Research journals • PubMed • Google Scholar Search for Pei-Jie Han

An expanding stage for commensal microbes in host immune regulation

Gastrointestinal commensal microbiota is a concentrated mix of microbial life forms, including bacteria, fungi, archaea and viruses. These life forms are targets of host antimicrobial defense in order to establish a homeostatic symbiosis inside the host. However, they are also instrumental in shaping the functions of our immune system via a diverse set of communication mechanisms...

A transdiagnostic neuroanatomical signature of psychiatric illness

Despite an increasing focus on transdiagnostic approaches to mental health, it remains unclear whether different diagnostic categories share a common neuronatomical basis. The current investigation sought to investigate whether a transdiagnostic set of structural alterations characterized schizophrenia, depression, post-traumatic stress disorder, and obsessive-compulsive disorder...

Review of fluid and control technology of hydraulic wind turbines

This study examines the development of the fluid and control technology of hydraulic wind turbines. The current state of hydraulic wind turbines as a new technology is described, and its basic fluid model and typical control method are expounded by comparing various study results. Finally, the advantages of hydraulic wind turbines are enumerated. Hydraulic wind turbines are...

Haplotypic polymorphisms and mutation rate estimates of 22 Y-chromosome STRs in the Northern Chinese Han father–son pairs

Y chromosome Short tandem repeats (Y-STRs) analysis has been widely used in forensic identification, kinship testing, and population evolution. An accurate understanding of haplotype and mutation rate will benefit these applications. In this work, we analyzed 1123 male samples from Northern Chinese Han population which including 578 DNA-confirmed father-son pairs at 22 Y-STRs...

Study on the Characteristics of Traction Forces Difference Asymmetric Steering Bogies

This article comes up with a new concept of applying the difference between traction forces on front and rear wheelsets to guiding control, as well as the design of a new type of structurally simple asymmetrical radial bogies, which lead to the proposition of traction forces difference-steering asymmetric radial bogies. The traction forces difference-steering asymmetric radial...

Study on the Characteristics of Traction Forces Difference Asymmetric Steering Bogies

, China Received 14 June 2016; Accepted 4 October 2016 Academic Editor: Tai Thai Copyright © 2016 Yan Shi et al. This is an open access article distributed under the Creative Commons Attribution License