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Long-term outcome of indwelling colon observed seven years after radical resection for rectosigmoid cancer: A case report

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World Journal of Clinical Cases 2021年第19期9卷 5252-5258页

作者： zi-Xuan zhuang Ming-Tian Wei Xu-Yang Yang Yang Zhang Wen zhuang zi-Qiang Wang Department of Gastrointestinal Surgery West China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina

BACKGROUND Indwelling colon is characterized by an excluded segment of the colon after surgical diversion of the fecal stream with colostomy so that contents are unable to pass through this part of the *** report a rare case of purulent colonic necrosis that occurred 7 years after surgical colonic *** SUMMARY A 73-year-old male had undergone extended radical resection for rectosigmoid *** invaded ileocecal area and sigmoid colon were removed during the procedure,and the ileum was anastomosed side-to-side with the *** excluded ascending,transverse,and descending colon were sealed at both ends and left in the *** 7 years,the patient developed persistent abdominal pain and ***-up indicated intestinal *** patient underwent ultrasound-guided catheter drainage of the descending colon and a large amount of viscous liquid was drained,but the symptoms persisted;therefore,surgery was ***,extensive adhesions were found in the abdominal cavity,and the small intestine and the indwelling colon were widely *** dilated colon was 56 cm long,5 cm wide(diameter),and contained about 1500 mL of viscous *** indwelling colon was surgically removed and its histopathological examination revealed colonic congestion and necrosis with hyperplasia of granulation *** bacterial culture of the secretions was *** patient recovered after the *** Although colonic exclusion is routinely performed,this report aimed to increase awareness regarding the possible long-term complications of indwelling colon.

关键词： Colon Colectomy Intestinal obstruction Diversion colitis Sigmoid cancer Colitis Case report

Synthesizing style-preserving cartoons via non-negative style factorization

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Journal of Zhejiang University-Science C(Computers and Electronics) 2012年第3期13卷 196-207页

作者： Zhang LIANG Jun XIAO yue-ting zhuang Institute of Artificial Intelligence School of Computer Science and TechnologyZhejiang UniversityHangzhou 310027China

We present a complete framework for synthesizing style-preserving 2D cartoons by learning from traditional Chinese cartoons. In contrast to reusing-based approaches which rely on rearranging or retrieving existing cartoon sequences, we aim to generate stylized cartoons with the idea of style factorization. Specifically, starting with 2D skeleton features of cartoon characters extracted by an improved rotoscoping system, we present a non-negative style factorization （NNSF） algorithm to obtain style basis and weights and simultaneously preserve class separability. Thus, factorized style basis can be combined with heterogeneous weights to reynthesize style-preserving features, and then these features are used as the driving source in the character reshaping process via our proposed subkey-driving strategy. Extensive experiments and examples demonstrate the effectiveness of the proposed framework.

关键词： Character cartoon Machine learning Cartoon synthesis

Content subscribing mechanism in P2P streaming based on gamma distribution prediction

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第12期8卷 1983-1989页

作者： GUO Tong-qiang WENG Jian-guang zhuang yue-ting School of Computer Science Zhejiang University Hangzhou 310027 China

P2P systems are categorized into tree-based and mesh-based systems according to their topologies. Mesh-based systems are considered more suitable for large-scale lnternet applications, but require optimization on latency issue. This paper proposes a content subscribing mechanism （CSM） to eliminate unnecessary time delays during data relaying. A node can send content data to its neighbors as soon as it receives the data segment. No additional time is taken during the interactive stages prior to data segment transmission of streaming content. CSM consists of three steps. First, every node records its historical segments latency, and adopts gamma distribution, which possesses powerful expression ability, to express latency statistics. Second, a node predicts subscribing success ratio of every neighbor by comparing the gamma distribution parameters of the node and its neighbors before selecting a neighbor node to subscribe a data segment. The above steps would not increase latency as they are executed before the data segments are ready at the neighbor nodes. Finally, the node, which was subscribed to, sends the subscribed data segment to the subscriber immediately when it has the data segment. Experiments show that CSM significantly reduces the content data transmission latency.

关键词： P2P streaming Gamma distribution Content subscribing mechanism (CSM)

On the material constants measurement method of a fluid-saturated transversely isotropic poroelastic medium

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Science China(Physics,Mechanics & Astronomy) 2019年第1期62卷 69-75页

作者： yue Gao ZhanLi Liu Zhuo zhuang Keh-Chih Hwang AML Department of Engineering Mechanics Tsinghua University Center for Mechanics and Materials Tsinghua University

The fluid-saturated transversely isotropic poroelastic medium could be widely found in nature, e.g., the sedimentary rocks underground. To determine the eight independent material constants for the transversely isotropic poroelastic medium, a series of tests are discussed. Two undrained tests and one drained test are suggested as a set of tests of the least amount. For the verification purpose, two additional drained tests are also introduced as an option. The atmospheric dried test is discussed as a replacement of the traditional infiltrated drained test to save the time waiting for an equilibrium state. Some microscopic material constants, i.e.,the unjacketed bulk coefficients, the porosity, and the compressibility of porous fluid, are measurable but unnecessary to determine the independent material constants of a poroelastic medium.

关键词： poroelastic constitutive model material constants measurement transversely isotropic medium

Maternal mental health and well-being during the COVID-19 pandemic in Beijing, China

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World Journal of Pediatrics 2021年第3期17卷 280-289页

作者： zhuang Wei Ming-yue Gao Mary Fewtrell Jonathan Wells Jin-yue Yu Department of Child Healthcare Beijing Children’s HospitalCapital Medical UniversityNational Center for Children’s HealthBeijingChina Population Policy and Practice Research and Teaching DepartmentUCL Great Ormond Street Institute of Child Health30 Guilford StreetLondon WC1N 1EHUK

Background The aim of this study is to evaluate the impact of the coronavirus disease 2019(COVID-19)pandemic on breastfeeding women and to identify predictors of maternal mental health and *** Mothers aged≥18 years with a breast-fed infant≤18 months of age during the COVID-19 pandemic in Beijing,China,completed a *** analysis of lockdown consequences was performed and predictors of these outcomes were examined using stepwise linear *** Of 2233 participants,29.9%,20.0%and 34.7%felt down,lonely,and worried,respectively,during the lockdown;however,85.3%felt able to *** maternal mental health was predicted by maternal(younger age,higher education)and infant(older age,lower gestation)characteristics,and social circumstances(husband unemployed or working from home,receiving advice from family,having enough space for the baby,living close to a park or green space).Conversely,better maternal mental health was predicted by higher income,employment requiring higher qualifications,more personal space at home,shopping or walking>once/week and lack of impact of COVID-19 on job or *** with higher education,more bedrooms,fair division of household chores and attending an online mother and baby group>once/week reported better *** The findings highlight maternal characteristics and circumstances that predict poorer mental health and reduced coping which could be used to target interventions in any future public health emergencies requiring social restrictions.

关键词： Coping Coronavirus disease 2019 Maternal health Mental health Postpartum

Role of the globus pallidus in motor and non-motor symptoms of Parkinson's disease

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Neural Regeneration Research 2025年第6期20卷 1628-1643页

作者： Yimiao Jiang Zengxin Qi Huixian Zhu Kangli Shen Ruiqi Liu Chenxin Fang Weiwei Lou Yifan Jiang Wangrui Yuan Xin Cao Liang Chen Qianxing zhuang Department of Physiology School of MedicineNantong UniversityNantongJiangsu ProvinceChina Department of Neurosurgery Huashan HospitalShanghai Medical CollegeFudan UniversityShanghaiChina National Center for Neurological Disorders ShanghaiChina Shanghai Key Laboratory of Brain Function Restoration and Neural Regeneration ShanghaiChina State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science Institute of Brain ScienceFudan UniversityShanghaiChina

The globus pallidus plays a pivotal role in the basal ganglia circuit. Parkinson's disease is characterized by degeneration of dopamine-producing cells in the substantia nigra, which leads to dopamine deficiency in the brain that subsequently manifests as various motor and non-motor symptoms. This review aims to summarize the involvement of the globus pallidus in both motor and non-motor manifestations of Parkinson's disease. The firing activities of parvalbumin neurons in the medial globus pallidus, including both the firing rate and pattern, exhibit strong correlations with the bradykinesia and rigidity associated with Parkinson's disease. Increased beta oscillations, which are highly correlated with bradykinesia and rigidity, are regulated by the lateral globus pallidus. Furthermore,bradykinesia and rigidity are strongly linked to the loss of dopaminergic projections within the cortical-basal ganglia-thalamocortical loop. Resting tremors are attributed to the transmission of pathological signals from the basal ganglia through the motor cortex to the cerebellum-ventral intermediate nucleus circuit. The cortico–striato–pallidal loop is responsible for mediating pallidi-associated sleep disorders. Medication and deep brain stimulation are the primary therapeutic strategies addressing the globus pallidus in Parkinson's disease. Medication is the primary treatment for motor symptoms in the early stages of Parkinson's disease, while deep brain stimulation has been clinically proven to be effective in alleviating symptoms in patients with advanced Parkinson's disease,particularly for the movement disorders caused by levodopa. Deep brain stimulation targeting the globus pallidus internus can improve motor function in patients with tremordominant and non-tremor-dominant Parkinson's disease, while deep brain stimulation targeting the globus pallidus externus can alter the temporal pattern of neural activity throughout the basal ganglia–thalamus network. Therefore, the comp

关键词： anxiety basal ganglia bradykinesia deep brain stimulation depression globus pallidus externus globus pallidus internus lateral globus pallidus medial globus pallidus neural circuit Parkinson's disease

Audio steganalysis based on “negative resonance phenomenon” caused by steganographic tools

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2006年第4期7卷 577-583页

作者： RU Xue-min zhuang yue-ting WU Fei Institute of Artificial Intelligence Zhejiang University Hangzhou 310027 China

Researching on the impact different steganographic software tools have audio statistical features, revealed the phe- nomenon that when messages are embedded in a WAV file by using a certain tool, the variation of statistical features in the WAV file which already contains messages embedded by the same tool is abruptly smaller than those in which messages have not been embedded. We call it “negative resonance phenomenon” temporarily. With the phenomenon above and Support Vector Machines (SVMs), we can detect the existence of hidden messages, and also identify the tools used to hide them. As shown by the experi- mental results, the proposed method can be very effectively used to detect hidden messages embedded by Hide4PGP, Stegowav and S-Tools4.

关键词： Audio steganalysis Linear prediction Support Vector Machine (SVM)

Borderline Case of Traces and Extensions for Weighted Sobolev Spaces

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Acta Mathematica Sinica,English Series 2023年第9期39卷 1817-1833页

作者： Man zi Huang Xian Tao Wang zhuang Wang Zhi Hao Xu MOE-LCSM School of Mathematics and StatisticsHunan Normal UniversityChangsha410081P.R.China

In this paper,we study the traces and the extensions for weighted Sobolev spaces on upper half spaces when the weights reach to the borderline *** first give a full characterization of the existence of trace spaces for these weighted Sobolev spaces,and then study the trace parts and the extension parts between the weighted Sobolev spaces and a new kind of Besov-type spaces(on hyperplanes)which are defined by using integral averages over selected layers of dyadic cubes.

关键词： Sobolev space borderline case trace theorem Besov-type space Muckenhoupt A_p weight

Multi-sensor image registration using multi-resolution shape analysis

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2006年第4期7卷 549-555页

作者： YUAN Zhen-ming WU Fei zhuang yue-ting School of Computer Science and Technology. Zhejiang University Hangzhou 310027 China School of Information Engineering Hangzhou Teacher＇s College Hangzhou 310036 China

Multi-sensor image registration has been widely used in remote sensing and medical image field, but registration performance is degenerated when heterogeneous images are involved. An image registration method based on multi-resolution shape analysis is proposed in this paper, to deal with the problem that the shape of similar objects is always invariant. The contours of shapes are first detected as visual features using an extended contour search algorithm in order to reduce effects of noise, and the multi-resolution shape descriptor is constructed through Fourier curvature representation of the contour’s chain code. Then a minimum distance function is used to judge the similarity between two contours. To avoid the effect of different resolution and intensity distribution, suitable resolution of each image is selected by maximizing the consistency of its pyramid shapes. Finally, the transformation parameters are estimated based on the matched control-point pairs which are the centers of gravity of the closed contours. Multi-sensor Landsat TM imagery and infrared imagery have been used as experimental data for comparison with the classical contour-based registration. Our results have been shown to be superior to the classical ones.

关键词： Image registration Shape descriptor Feature matching Multi-resolution representation