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Multiple-parameter estimation in a sagnac interferometer
[article]
2019
arXiv
pre-print
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We explored the general characteristics of a Sagnac interferometer in a multiparameter estimation process. We find that in the two-parameter estimation scenario, one cannot make both parameter measurement results reach the Heisenberg limit (HL) simultaneously when the input resources are maximally entangled. Only one of the parameters' uncertainty can approach the HL while the other is only scaled by the standard quantum limit (SQL). We also discussed the constraint conditions that make the
arXiv:1911.02324v1
fatcat:izzwvh7zzfgjlahpthr2tubfja
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... tum Cramer-Rao bound saturable. These constraint conditions would prompt one to choose proper evolution time and optimal input state. Under the constraint conditions, we find that the HL result obtained in the two parameter scenario would catch up with or even be more precise than that acquired by the single parameter measurement process in some special cases. Such general features about the Sagnac system revealed in our work may have a reference value in actual experiments.
TINCR expression is associated with unfavorable prognosis in patients with hepatocellular carcinoma
2017
Bioscience Reports
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Correspondence: Xiaoguang Xu (yun mmy@163.com) Emerging evidence are accumulating that long noncoding RNAs (lncRNAs) have recently been identified to participate in various cellular processes. ...
doi:10.1042/bsr20170301
pmid:28546230
pmcid:PMC5529205
fatcat:jtb4bs7nubghjlbucwfiiwkmfe
Reduced fidelity susceptibility in the one-dimensional transverse field Ising model
[article]
2008
arXiv
pre-print
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We study critical behaviors of the reduced fidelity susceptibility for two neighboring sites in the one-dimensional transverse field Ising model. It is found that the divergent behaviors of the susceptibility take the form of square of logarithm, in contrast with the global ground-state fidelity susceptibility which is power divergence. In order to perform a scaling analysis, we take the square root of the susceptibility and determine the scaling exponent analytically and the result is further confirmed by numerical calculations.
arXiv:0808.1816v1
fatcat:hq6cvo553jfnjjx37lg5fqrcia
Label Mask for Multi-Label Text Classification
[article]
2021
arXiv
pre-print
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One of the key problems in multi-label text classification is how to take advantage of the correlation among labels. However, it is very challenging to directly model the correlations among labels in a complex and unknown label space. In this paper, we propose a Label Mask multi-label text classification model (LM-MTC), which is inspired by the idea of cloze questions of language model. LM-MTC is able to capture implicit relationships among labels through the powerful ability of pre-train
arXiv:2106.10076v1
fatcat:h74da3gp5raetbmyesy2u46zne
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... ge models. On the basis, we assign a different token to each potential label, and randomly mask the token with a certain probability to build a label based Masked Language Model (MLM). We train the MTC and MLM together, further improving the generalization ability of the model. A large number of experiments on multiple datasets demonstrate the effectiveness of our method.
Supplemental material for Comparative study of viscose yarn properties spun with a softening device and pressure plate
2019
Figshare
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Supplemental Material for Comparative study of viscose yarn properties spun with a softening device and pressure plate by Keshuai Liu, Duo Xu, Jiang Wei, Junlong Ni, Shengming Yang, Xiaoguang Xu, Wan Li ...
, Xinling Zhang, Bo Deng and Weilin Xu in Textile Research Journal ...
doi:10.25384/sage.8068160
fatcat:54arsd5asjeb3nesibt4qfz5t4
Localized and propagating surface plasmon co-enhanced Raman spectroscopy based on evanescent field excitation
2011
Chemical Communications
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Study on Dynamic Monitoring of Wire Rope Tension Based on the Particle Damping Sensor
2019
Sensors
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Xu et al. [9] designed a wireless sensor network technology adapted to underground channel Figure 2 shows the structure of the particle damping sensor. ...
doi:10.3390/s19020388
fatcat:ose4gr47wfcxpfwai3yeq7hiwi
Microarray analysis reveals differentially expressed lncRNAs in benign epithelial ovarian cysts and normal ovaries
2017
Oncology Reports
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Recent studies suggest that long non-coding RNAs (lncRNAs) play crucial roles in many types of human malignant cancers. However, the function of lncRNAs in benign tumors remains poorly understood. In the present study, to explored the potential roles of lncRNAs in benign epithelial ovarian cysts (BEOCs) which commonly occur in young women and possess malignant potential, we described the expression profile of the lncRNAs between BEOC and normal ovarian tissues using lncRNA microarray
doi:10.3892/or.2017.5741
pmid:28656240
pmcid:PMC5562051
fatcat:vo3uaxvqkbdoxiggucunvvge64
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... The results showed that 1,325 transcripts of lncRNAs (1,014 upregulated and 311 downregulated) were differentially expressed in the BEOCs compared with the normal controls [absolute fold-change ≥2, false discovery rate (FDR) <0.05]. We also conducted quantitative real-time PCR (qPCR) to confirm the microarray data. The results of qPCR revealed that the expression trend of 6 randomly selected lncRNAs was consistent with the microarray data. Furthermore, candidate lncRNAs were characterized by pathway analysis and Gene Ontology (GO). The present study is the first to demonstrate different expression profiles of lncRNAs between BEOCs and normal ovarian tissues. These lncRNAs may play a crucial role in the pathological process of BEOCs.
Clinical Significance of Transcription Factor 7 (TCF7) as a Prognostic Factor in Gastric Cancer
2019
Medical Science Monitor
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Indexed in: [Current Contents/Clinical Medicine] [SCI Expanded] [ISI Alerting System] [ISI Journals Master List] [Index Medicus/MEDLINE] [EMBASE/Excerpta Medica] [Chemical Abstracts/CAS] 3959
Xu X. et ...
doi:10.12659/msm.913913
pmid:31133633
pmcid:PMC6556064
fatcat:lmprrgly4zdoxcjohf6wkahsge
Shuxuetong injection simultaneously ameliorates dexamethasone‑driven vascular calcification and osteoporosis
2021
Experimental and Therapeutic Medicine
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Osteoporosis (OP) and vascular calcification (VC) share a number of common risk factors, pathophysiological mechanisms and etiology, which are known as bone-vascular axis. The present study aimed to investigate the effects of Shuxuetong (SXT) injection on VC and osteoporosis. A rat model of VC and osteoporosis was induced by dexamethasone (DEX; 1 mg/kg/day for 4 weeks, intramuscularly). Simultaneously, 0.6 ml/kg/day SXT was intraperitoneally injected. Compared with control rats, DEX induced
doi:10.3892/etm.2021.9630
pmid:33488806
pmcid:PMC7812579
fatcat:y2llsmbzubbn5jfmrq6qwi4p6y
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... ificantly more VC and OP, as determined by increased calcium deposition and alkaline phosphatase activity in the aorta, disturbed structure, decreased levels of cortical bone thickness and trabecular bone area, and increased apoptosis in the bone. SXT injection ameliorated DEX-induced VC and osteoporosis; furthermore, the osteoblastic differentiation of vascular smooth muscle cells and the activation of endoplasmic reticulum stress in the DEX group was also prevented by SXT injection. Compared with control rats, protein expression levels of sclerostin, a crucial crosslink of the bone-vascular axis, were significantly increased in the aorta and bone of rats with DEX, which was also attenuated by SXT injection. Thus, the present study suggested that SXT injection could ameliorate both VC and OP, and may be mediated by the regulation of sclerostin. The present study may provide the basis a novel strategy for the prevention and treatment of VC and OP, which emerge as side-effects of glucocorticoids.
Extreme return, extreme volatility and investor sentiment
2016
Filomat
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The extreme return and extreme volatility have great influences on the investor sentiment in stock market. However, few researchers have taken the phenomenon into consideration. In this paper, we first distinguish the extreme situations from non-extreme situations. Then we use the ordinary generalized least squares and quantile regression methods to estimate a linear regression model by applying the standardized AAII, the return and volatility of SP 500. The results indicate that, except for
doi:10.2298/fil1615949g
fatcat:nqpzwgcff5aibefnknuo6vwava
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... remely negative return, other return sequences can cause great changes in investor sentiment, and non-extreme return plays a leading role in affecting the overall American investor sentiment. Extremely positive (negative) return can rapidly improve (further reduce) the level of investor sentiment when investors encounter extremely pessimistic situations. The impact gradually decreases with improvement of the sentiment until the situation turns optimistic. In addition, we find that extreme and non-extreme volatility cannot affect the overall investor sentiment.
Ischemic stroke following STA–MCA double bypass
2022
Translational Neuroscience
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Objectives The surgical technique of STA–MCA double bypass is used to improve blood flow supplied by the distal middle cerebral artery (MCA) to the cerebral territory. This retrospective study from a single center aimed to compare the outcomes following STA–MCA double bypass in 12 patients with recurrent ischemic stroke. Materials and methods We retrospectively analyzed the data from patients with internal carotid artery occlusion (ICAO) who had undergone STA–MCA double bypass in our center
doi:10.1515/tnsci-2022-0211
pmid:35223090
pmcid:PMC8831893
fatcat:mfscbe3rrjbijejl2eenwk2ipu
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... January 2016 to December 2020. The surgical indications, evaluation of circle of Willis (CoW), changes in cerebral hemodynamic, surgical results, and follow-up results were analyzed. Results Post-operative perfusion-weighted imaging showed hemodynamic improvement in all 12 patients. Ten patients (83.33%) showed clinical improvement, and 2 patients (16.67%) had stable disease. No intracranial infections or acute ischemic events occurred. The post-operative National Institutes of Health Stroke Scale score and modified Barther scores were significantly improved after 180 days of follow-up. Twenty three (96%) anastomoses maintain patency of their bypass vessels, and none had recurrent cerebral infarction during a minimum of 36 months follow-up. Conclusion In this small study, in patients with recurrent ischemic stroke without other types of treatment, STA–MCA double bypass surgery was more effective in the subgroup of patients with ICAO and poor blood supply to the CoW and an area of cerebral hypoperfusion that exceeded the area supplied by the MCA.
Answer to the Letter to the Editor of Ning Zhu et al. entitled "Anterior approach versus posterior approach for the treatment of multilevel cervical spondylotic myelopathy: a systemic review and meta-analysis" (by Bin Zhu, Yilan Xu, Xiaoguang Liu, Zhongjun Liu, Gengting Dang (2013) Eur Spine J 22(7); 1583–1593)
2013
European spine journal
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The author of the Letter to the Editor raised three main concerns: 1. The "small" range of electronic database we searched. 2. The management of heterogeneities of our study. 3. The potential publication bias. Our reply to the first concern is that most high-quality studies were included in the three main databases (MED-LINE, EMBASE, and the Cochrane Central Register of Controlled Trials databases). Besides, we scanned the references of all included studies and relevant reviews to identify
doi:10.1007/s00586-013-3096-7
pmid:24201511
pmcid:PMC3906445
fatcat:2ecypdkbk5brtiviahk3d6gqsa
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... tial studies outside the three database mentioned above, but no additional study was found. Our reply to the second concern is that there was no obvious difference between the fixed-effects model and random-effects model (DerSimonian and Laird random-effects model) in the meta-analysis of recovery rate (Figs. 1, 2) . Considering the significant heterogeneity between the studies, the data were not meta-analyzed. Our reply to the third concern was that publication bias was not discussed in our original article. Then we selected the complication rate to assess the publication bias. The funnel plot indicated that the possibility of publication bias between studies was minimal (Fig. 3 ). Fig. 1 As shown on the forest plot of recovery rate using random-effects model, there was significant heterogeneity between studies (heterogeneity: v 2 = 15.65, P = 0.001; I 2 = 81 %)
Characterization of an H3N2 canine influenza virus isolated from Tibetan mastiffs in China
2013
Veterinary Microbiology
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Differential Characteristics Based Iterative Multiuser Detection for Wireless Sensor Networks
2017
Sensors
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Author Contributions: Xiaoguang Chen proposed the idea and wrote the paper; Xu Jiang did the simulation; Zhilu Wu and Shufeng Zhuang revised the paper. ...
doi:10.3390/s17020388
pmid:28212328
pmcid:PMC5336114
fatcat:2x5jjswsfrfpnh7qm6uamjlvfq
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