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Association between anti-Müllerian hormone concentrations and sperm retrieval outcomes in patients with idiopathic nonobstructive azoospermia:a systematic review and meta-analysis

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Asian Journal of Andrology 2024年第5期26卷 522-527页

作者： Hong xiao Yi-Lang Ding Peng Yang Qiang chen Hai-lin Huang xi chen Hui-Liang Zhou Song-xi Tang Department of Andrology and Sexual Medicine First Affiliated Hospital of Fujian Medical UniversityFuzhou 350005China

Microdissection testicular sperm extraction(mTESE)is commonly performed to retrieve sperm in the testes for assisted reproductive techniques in patients with idiopathic nonobstructive azoospermia(iNOA).However,the success rate of sperm retrieval varies among *** aim to investigate the association between clinical parameters and sperm retrieval outcomes in patients with *** searched PubMed,EMBASE,and Web of Science from database inception to August 2,*** main measure was whether sperm retrieval was successful in patients with iNOA who underwent *** estimates of the sperm retrieval rate and weighted mean differences were calculated using random-effects *** overall sperm retrieval rate was 36.8%(95%confidence interval[CI]:27.5%-46.0%,I 2=95.0%)in nine studies comprising 1892 patients with *** significant differences were found in age,testicular volume,serum total testosterone concentrations,or inhibin B concentrations between positive and negative sperm retrieval *** anti-Müllerian hormone concentrations in patients with iNOA were associated with a positive outcome of mTESE(weighted mean differences:−2.70;95%CI:−3.94-−1.46,I 2=79.0%).In conclusion,this study shows a significant relationship between anti-Müllerian hormone and sperm retrieval outcomes in patients with iNOA,while age,testicular volume,total testosterone,and inhibin B show no significant *** findings have important implications for assessing the potential success of sperm retrieval and selecting appropriate treatment strategies in patients with iNOA.

关键词： anti-Müllerian hormone idiopathic nonobstructive azoospermia male infertility meta-analysis sperm retrieval

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Glucocorticoid receptor signaling in the brain and its involvement in cognitive function

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Neural Regeneration Research 2025年第9期20卷 2520-2537页

作者： Chonglin Su Taiqi Huang Meiyu Zhang Yanyu Zhang Yan Zeng xingxing chen Brain Science and Advanced Technology Institute Hubei Province Key Laboratory of Occupational Hazard Identification and ControlSchool of MedicineWuhan University of Science and TechnologyWuhanHubei ProvinceChina

The hypothalamic-pituitary-adrenal axis regulates the secretion of glucoco rticoids in response to environmental *** the brain,a nuclear receptor transcription fa ctor,the glucocorticoid recepto r,is an important component of the hypothalamicpituitary-a d renal axis's negative feedback loop and plays a key role in regulating cognitive equilibrium and *** glucoco rticoid receptor influences cognitive processes,including glutamate neurotransmission,calcium signaling,and the activation of brain-derived neurotrophic factor-mediated pathways,through a combination of genomic and non-genomic *** interactions within the central nervous system can alter the expression and activity of the glucocorticoid receptor,there by affecting the hypothalamic-pituitary-a d renal axis and stress-related cognitive *** appropriate level of glucocorticoid receptor expression can improve cognitive function,while excessive glucocorticoid receptors or long-term exposure to glucoco rticoids may lead to cognitive *** with cognitive impairment-associated diseases,such as Alzheimer's disease,aging,depression,Parkinson's disease,Huntington's disease,stroke,and addiction,often present with dysregulation of the hypothalamic-pituitary-adrenal axis and glucocorticoid receptor *** review provides a comprehensive overview of the functions of the glucoco rticoid receptor in the hypothalamic-pituitary-a d renal axis and cognitive *** emphasizes that appropriate glucocorticoid receptor signaling fa cilitates learning and memory,while its dysregulation can lead to cognitive *** provides clues about how glucocorticoid receptor signaling can be targeted to ove rcome cognitive disability-related disorders.

关键词： brain-derived neurotrophic factor calcium signaling glucocorticoid receptor glucocorticoid glutamate transmission hypothalamic-pituitary-adrenal axis long-term potentiation neurocognitive disorders neuroplasticity stress

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Reconstructing piecewise planar scenes with multi-view regularization

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Computational Visual Media 2019年第4期5卷 337-345页

作者： Weijie xi Xuejin chen University of Science and Technology of China Hefei230026China

Reconstruction of man-made scenes from multi-view images is an important problem in computer vision and computer *** that manmade scenes are usually composed of planar surfaces,we encode plane shape prior in reconstructing man-made *** approaches for single-view reconstruction employ multi-branch neural networks to simultaneously segment planes and recover 3D plane ***,the scale of available annotated data heavily limits the generalizability and accuracy of these supervised *** this paper,we propose multiview regularization to enhance the capability of piecewise planar reconstruction during the training phase,without demanding extra annotated *** multi-view regularization enables the consistency among multiple views by making the feature embedding more robust against view change and lighting ***,the neural network trained by multi-view regularization performs better on a wide range of views and lightings in the test *** on more consistent prediction results,we merge the recovered models from multiple views to reconstruct *** approach achieves state-of-the-art reconstruction performance compared to previous approaches on the public Scan Net dataset.

关键词： scene modeling multi-view regularization neural network

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Cramer-Rao bounds for the joint delay-Doppler estimation of compressive sampling pulse-Doppler radar

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Journal of Systems Engineering and Electronics 2018年第1期29卷 58-66页

作者： chen Shengyao xi Feng School of Electronic and Optical Engineering Nanjing University of Science and Technology

Time-delay and Doppler shift estimation is a basic task for pulse-Doppler radar processing. For low-rate sampling of echo signals, several kinds of compressive sampling(CS) pulse-Doppler(CSPD) radar are developed with different analog-to-information conversion(AIC) systems. However, a unified metric is absent to evaluate their parameter estimation performance. Towards this end, this paper derives the deterministic Cramer-Rao bound(CRB)for the joint delay-Doppler estimation of CSPD radar to quantitatively analyze the estimate performance. Theoretical results reveal that the CRBs of both time-delays and Doppler shifts are inversely proportional to the received target signal-to-noise ratio(SNR), the number of transmitted pulses and the sampling rate of AIC systems. The main difference is that the CRB of Doppler shifts also lies on the coherent processing interval. Numerical experiments validate these theoretical results. They also show that the structure of the AIC systems has weak influence on the CRBs, which implies that the AIC structures can be flexibly selected for the implementation of CSPD radar.

关键词： compressive sampling(CS) delay-Doppler estimation Cramer-Rao bound(CRB)

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Differential transform method for solving Richards' equation

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Applied Mathematics and Mechanics(English Edition) 2016年第2期37卷 169-180页

作者： xi chen Ying DAI School of Aerospace Engineering and Applied Mechanics Tongji University

An approximate solution to Richards＇ equation is presented, mathematically describing a sort of unsaturated single phase fluid flow in porous media. The approach is a differential transform method （DTM） with interm... 详细信息

关键词： approximate analytical solution Richavds' equation differential transform method (DTM) intermediate variable

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Privacy Preserved Aid-Verification Attribute based Signature Scheme 36

Privacy Preserved Aid-Verification Attribute based Signature...

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第36届中国控制会议

作者： Yiliang Han Fei chen lin xi Department of Electronic Technology Engineering University of People’s Armed Police

ISBN: (纸本)9781538629185

The attribute based signature scheme could verify the signature by the attribute instead of public ***,a large number of bilinear operations are concentrated in the verification process,so the amount of computation required for signature verification is much larger than that of signature *** solve this problem,this paper proposed an attribute based signature scheme with aided-verification,which outsources the bilinear *** supports LSSS matrix,with flexible expression *** proved the unforgeability and outsourcing computational completeness under chosen plaintext attack with the Diffie-Hellman problem *** proposal could be used in mobile devices with limited computing power.

关键词： Attribute-based signature privacy preserving bilinear maps aid-verification

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Acute Complication Prediction and Diagnosis Model CLSTM-BPR:A Fusion Method of Time Series Deep Learning and Bayesian Personalized Ranking

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Tsinghua Science and Technology 2024年第5期29卷 1509-1523页

作者： xi chen Quan cheng School of Economics and Management Fuzhou UniversityFuzhou 350108China

Acute complication prediction model is of great importance for the overall reduction of premature death in chronic *** CLSTM-BPR proposed in this paper aims to improve the accuracy,interpretability,and generalizability of the existing disease prediction ***,through its complex neural network structure,CLSTM-BPR considers both disease commonality and patient characteristics in the prediction ***,by splicing the time series prediction algorithm and classifier,the judgment basis is given along with the prediction ***,this model introduces the pairwise algorithm Bayesian Personalized Ranking(BPR)into the medical field for the first time,and achieves a good result in the diagnosis of six acute *** on the Medical Information Mart for Intensive Care IV(MIMIC-IV)dataset show that the average Mean Absolute Error(MAE)of biomarker value prediction of the CLSTM-BPR model is 0.26,and the average accuracy(ACC)of the CLSTM-BPR model for acute complication diagnosis is 92.5%.Comparison experiments and ablation experiments further demonstrate the reliability of CLSTM-BPR in the prediction of acute complication,which is an advancement of current disease prediction tools.

关键词： Long Short-Term Memory(LSTM) Bayesian Personalized Ranking(BPR) sudden illnesses disease predictions

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Low-energy-consumption temperature swing system for CO_(2) capture by combining passive radiative cooling and solar heating

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Green Energy & Environment 2024年第3期9卷 507-515页

作者： Ying-xi Dang Peng Tan Bin Hu chen Gu xiao-Qin Liu lin-Bing Sun State Key Laboratory of Materials-Oriented Chemical Engineering Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)College of Chemical EngineeringNanjing Tech UniversityNanjing211816China

Temperature-swing adsorption(TSA)is an effective technique for CO_(2) capture,but the temperature swing procedure is ***,we report a low-energy-consumption system by combining passive radiative cooling and solar heating for the uptake of CO_(2) on commercial activated carbons(CACs).During adsorption,the adsorbents are coated with a layer of hierarchically porous poly(vinylidene fluoride-co-hexafluoropropene)[P(VdF-HFP)HP],which cools the adsorbents to a low temperature under sunlight through radiative *** desorption,CACs with broad absorption of the solar spectrum are exposed to light irradiation for *** heating and cooling processes are completely driven by solar *** tests under mimicked sunlight using the CACs show that the performance of this system is comparable to that of the traditional ***,under real sunlight irradiation,the adsorption capacity of the CACs can be well maintained after multiple *** present work may inspire the development of new temperature swing procedures with little energy consumption.

关键词： CO_(2)capture Solar heating Passive radiative cooling Temperature swing adsorption

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Programmable Quantum Processor with Quantum Dot Qubits

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Chinese Physics Letters 2019年第7期36卷 10-13页

作者： Yao chen Fo-Liang lin xi Liang Nian-Quan Jiang College of Mathematics Physics and Electronic Information Engineering Wenzhou University

The realization of controllable couplings between any two qubits and among any multiple qubits is the critical problem in building a programmable quantum processor(PQP). We present a design to implement these types of couplings in a double-dot molecule system, where all the qubits are connected directly with capacitors and the couplings between them are controlled via the voltage on the double-dot molecules. A general interaction Hamiltonian of n qubits is presented, from which we can derive the Hamiltonians for performing operations needed in building a PQP, such as gate operations between arbitrary two qubits and parallel coupling operations for multigroup qubits. The scheme is realizable with current technology.

关键词： The realization of controllable among any multiple with current technology

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Dual-parameter Correlation Analysis of the Redox Potential Data of 1-Methyl-2-formyl-5-substituted Pyrroles and their Hydrazones

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Chinese Chemical Letters 2001年第12期12卷 1097-1100页

作者： Hai Ying HE chen lin cheng Xue ZHAO xi Kui JIANG Department of Chemistry Shanghai Jiaotong UniversityShanghai 200240 Shanghai Institute of Organic Chemistry Shanghai 200032

By using 1-methyl-2-formyl-5-substituted pyrroles (1-Y), 1-methyl-2-formyl-5-substituted pyrrole phenylhydrazones (2-Y) and 1-methyl-2-formyl-5-substituted pyrrole (4-nitrophenyl)-hydrazones (3-Y) as model structures for nitrogen-containing heterocyclic aromatic compounds, correlation analysis of their redox potential data show that the transition states (TS) of the polarographic process are mainly affected by the polar effects, but spin-delocalizatin effects also exist.

关键词： correlation analysis polar effect spin-delocalization effect redox potential

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