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Three cancers in the renal pelvis,bladder,and colon:A case report

World Journal of Clinical Cases 2024年第2期12卷 392-398页

作者： Jing Chen Hua-Yan Huang Hui-Chun zhou Lin-Xiao Liu Chuang-Fan Kong Quan zhou Jian-Ming Fei Yuan-Ming Zhu Hu Liu Ye-Chen Tang cheng-zhong zhou Department of General Surgery The Second Affiliated Hospital of Jiaxing UniversityJiaxing 314000Zhejiang ProvinceChina Department of Pathology The Second Affiliated Hospital of Jiaxing UniversityJiaxing 314000Zhejiang ProvinceChina Department of Medical Imaging The Second Affiliated Hospital of Jiaxing UniversityJiaxing 314000Zhejiang ProvinceChina Department of Urology The Second Affiliated Hospital of Jiaxing UniversityJiaxing 31400Zhejiang ProvinceChina

BACKGROUND Multiple primary cancers are rare occurrences that can involve either metachronous or synchronous *** is particularly rare for an individual to have more than two primary *** this report,we present a case study of an elderly man who was diagnosed with three heterochronous cancers in the renal pelvis,bladder,and *** SUMMARY On December 30,2014,a 51-year-old Chinese man was admitted to our hospital with complaints of intermittent painless gross hematuria for the preceding week.A computed tomography(CT)scan revealed wall thickening in the left ureter’s upper segment,while a CT urography revealed a left renal pelvis tumor.A successful laparoscopic radical resection of the left renal pelvis tumor was subsequently performed at Shanghai zhongshan Hospital in January *** pathological findings after the surgery revealed a low-grade papillary urothelial carcinoma of the renal *** final pathological tumor stage was *** surgery,this patient received 6 cycles of intravenous chemotherapy with gemcitabine and carboplatin,as well as bladder infusion therapy with *** December 18,2017,the patient was admitted once again to our hospital with a one-day history of painless gross hematuria.A CT scan showed the presence of a space-occupying lesion on the posterior wall of *** examination revealed multiple tumors in the bladder and right cutaneous ureterostomy was performed under general anesthesia on December 29,*** postoperative pathological findings disclosed multifocal papillary urothelial carcinoma of the bladder(maximum size 3.7 cm×2.6 cm).The bladder cancer was considered a metastasis of the renal pelvis cancer after *** pathological tumor stage was *** patient refused chemotherapy after *** another six years,the patient returned on February 28,2023,complaining of periumbilical pain that had lasted six *** time,a CT scan of the abdomen showed a tumor in the ascen

关键词： Metachronous primary carcinoma Renal pelvis carcinoma Bladder carcinoma Colon carcinoma Case report

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Identification and Determination of Nicorandil and its Degradation Products by HPLC and GC/MS

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Chinese Chemical Letters 2006年第8期17卷 1057-1060页

作者： zhong zhou cheng Ze Hui JIA Yan CHEN Li Ying CHEN Hua LI Institute of Analytical Science Northwest University Xi＇an 710069 Xi＇an Libang Pharmaceuticals Co. Ltd Xi＇an 710075

A rapid and sensitive HPLC-DAD method is developed for simultaneous determination of nicorandil and its degradation products, N-（2-hydroxyethyl） nicotinamide, nitrate ion and nicotinic acid, using nicotinamide （NT） as internal standard, at wavelength 204 nm. Nicotinic acid is identified by HPLC and GC/MS. The method can also be applied to study kinetic of degradation processes of nicorandil in storage.

关键词： Nicorandil degradation HPLC GC/MS UV.

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Bladder perforation caused by long-term catheterization misdiagnosed as digestive tract perforation:A case report

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World Journal of Clinical Cases 2020年第20期8卷 4993-4998页

作者： Bin Wu Jing Wang Xu-Jian Chen zhong-cheng zhou Ming-Yuan Zhu Yi-Yu Shen Zheng-Xiang zhong Department of Hepatobiliary Surgery The Second Affiliated Hospital of Jiaxing UniversityJiaxing 314000Zhejiang ProvinceChina

BACKGROUND Spontaneous bladder rupture is relatively rare,and common causes of spontaneous bladder rupture include bladder diverticulum,neurogenic bladder dysfunction,gonorrhea infection,pelvic radiotherapy,*** bladder perforation caused by urinary catheterization mostly occurs during the intubation *** SUMMARY Here,we describe an 83-year-old male who was admitted with 26 h of middle and upper abdominal pain and a history of long-term *** examination and computed tomography of the abdomen supported the diagnosis of diffuse peritonitis,most likely from a perforated digestive tract *** exploration revealed a possible digestive tract ***,a perforation of approximately 5 mm in diameter was found in the bladder wall during *** reviewing the patient's previous medical records,we found that 1 year prior the patient underwent an ultrasound examination showing that the end of the catheter was embedded into the mucosal layer of the ***,the bladder perforation in this patient may have been caused by the chronic compression of the urinary catheter against the bladder *** For patients with long-term indwelling catheters,there is a possibility of bladder perforation,which needs to be dealt with quickly.

关键词： Bladder perforation Catheterization Misdiagnosed Case report

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Non-linear Viscoelastic Rheological Properties of PCC/PEG Suspensions

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Chinese Journal of Chemical Physics 2009年第1期22卷 46-50页

作者： Hai-lin Yang Jian-ming Ruan Jian-peng Zou Qiu-mei Wu zhong-cheng zhou Yuan-yan Xie State Key Laboratory of Powder Metallurgy Central South University Changsha 410083 China

The shear thinning and shear thickening rheological properties of PCC/PEG suspension were investigated with the increase of oscillatory amplitude stress at different constant frequencies. The results show that the complex viscosity was initially independent of stress amplitude and obvious shear thinning occurred, then dramatic shear thickening took place after reaching the minimum viscosity. Typically, in a constant frequency of 5 rad/s, the elastic modulus, viscous modulus, and tanδ （δ is the out-of-phase angle） vs. the stress amplitude was investigated. It is found that the elastic modulus initially appeared to be independent of stress amplitude and then exhibited a rapid decrease, but the viscous modulus was independent of amplitude stress at lower amplitude stress. After reaching the minimum value the viscous modulus showed a rapid increase. On the other hand, tanδ increased from 0.6 to 92, which indicates that the transition from elastic to viscous had taken place and tanδ showed a steep increase when shear thickening occurred. Lissajous plots are shown for the dissipated energy vs. different maximum stress amplitude in the shear thinning and shear thickening regions. The relationship of dissipated energy vs. maximum stress amplitude was determined, which follows a power law. In the shear thinning region the exponent was 1.91, but it steeply increases to 3.97 in the shear thickening region.

关键词： Precipitated calcium carbonate Suspension Shear thickening Dynamic oscillatory shear Rheological response

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Endometriosis of the duplex appendix: A case report and review of the literature

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World Journal of Clinical Cases 2019年第15期7卷 2094-2102页

作者： Ming-Yuan Zhu Fa-Ming Fei Jing Chen zhong-cheng zhou Bin Wu Yi-Yu Shen Department of General Surgery The Second Affiliated Hospital of Jiaxing University

BACKGROUND Duplication of the appendix is an infrequent congenital malformation with a complex *** horseshoe appendix is a subtype of the duplex appendix and is rarely reported in the *** is a common gynecological disease that rarely occurs in the ***,horseshoe appendix combined with endometriosis has not been previously *** SUMMARY Here,we describe a 44-year-old woman who was admitted with a 1-d history of migratory lower right quadrant *** examination was consistent with the signs of acute *** patient underwent an emergency exploratory *** distal tip of the appendix was in contact with the cecum by another base,or“horseshoe appendix”.In addition,a small intestinal mass and an ovarian mass were ***,appendectomy,partial resection of the small intestine,and right oophorectomy were successively *** histopathology confirmed the diagnosis of acute inflammation of the duplex appendix with endometriosis,small intestine endometriosis,and ovarian *** Surgeons need to be aware of the possibility of the duplex appendix when performing an appendectomy,and this study emphasizes the importance of exploring the entire abdomen.

关键词： Duplex appendix Horseshoe appendix Endometriosis Appendectomy Case report

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Synchronous primary duodenal papillary adenocarcinoma and gallbladder carcinoma:A case report and review of literature

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World Journal of Clinical Cases 2022年第27期10卷 9790-9797页

作者： Jing Chen Ming-Yuan Zhu Yan-Hua Huang zhong-cheng zhou Yi-Yu Shen Quan zhou Ming-Jian Fei Fan-Chuang Kong Department of General Surgery The Second Affiliated Hospital of Jiaxing UniversityJiaxing 314000Zhejiang ProvinceChina Department of Pathology The Second Affiliated Hospital of Jiaxing UniversityJiaxing 314000Zhejiang ProvinceChina

BACKGROUND Synchronous primary cancers(SPCs) have become increasingly frequent over the past ***,the coexistence of duodenal papillary and gallbladder cancers is rare,and such cases have not been previously reported in the English ***,we describe an SPC case with duodenal papilla and gallbladder cancers and its diagnosis and successful *** SUMMARY A 68-year-old Chinese man was admitted to our hospital with the chief complaint of dyspepsia for the past ***-enhanced computed tomography of the abdomen performed at the local hospital revealed dilatation of the bile and pancreatic ducts and a space-occupying lesion in the duodenal *** revealed a tumor protruding from the duodenal *** findings for the biopsied tissue revealed tubular villous growth with moderate heterogeneous *** treatment was *** examination of this surgical specimen revealed a 2-cm papillary tumor and another tumor protruding by 0.5 cm in the gallbladder neck *** rapid pathology identified adenocarcinoma in the gallbladder neck duct and tubular villous adenoma with high-grade intraepithelial neoplasia and local canceration in the duodenal *** an uneventful postoperative recovery,the patient was discharged without *** It is essential for clinicians and pathologists to maintain a high degree of suspicion while evaluating such synchronous cancers.

关键词： Synchronous primary cancers Gallbladder carcinoma Duodenal papillary adenocarcinoma Surgical treatment Case report

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Miniaturized power detection module operating in millimeter wave band

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Journal of Electronic Science and Technology 2024年第2期22卷 69-76页

作者： Xiang zhou Zhi-Yong zhong School of Electronic Science and Engineering University of Electronic Science and Technology of ChinaChengdu611731China

The miniaturized broadband detection module can be embedded into the microwave application system such as the front end of the transmitter to detect the power or other parameters in real *** is highly prospective in military and scientific *** this paper,a broadband power detection module operating at 26.5 GHz-40.0 GHz is designed by using low-barrier Schottky diode as the detector and a comparator for threshold *** module can dynamically detect the power range between-10 dBm and 10 dBm with the detection accuracy of 0.1 ***,the temperature compensation circuit is also applied to improve the measurement *** a result,the resulted error low to±1 dB in the temperature range of -55℃ to +85℃ is *** designed module is encapsulated by a Kovar alloy with a small volume of 9 mm×6 mm×3 *** endows the designed module the advantages of small size,easy integration,and low cost,and even it is applicable to high-reliability environments such as satellites.

关键词： Diode Miniaturization Power detection Temperature compensation

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Multiple Soliton Asymptotics in a Spin-1 Bose–Einstein Condensate

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Chinese Physics Letters 2024年第9期41卷 15-22页

作者： zhong-zhou Lan School of Computer Information Management Inner Mongolia University of Finance and EconomicsHohhot 010070China

Spinor Bose–Einstein condensates(BECs)are formed when atoms in the multi-component BECs possess single hyperfine spin states but retain internal spin degrees of *** study concentrates on a(1+1)-dimensional three-couple Gross–Pitaevskii system to depict the macroscopic spinor BEC waves within the meanfield *** the distribution of the atoms corresponding to the three vertical spin projections,a known binary Darboux transformation is utilized to derive the𝑁matter-wave soliton solutions and triple-pole matter-wave soliton solutions on the zero background,where𝑁is a positive *** those multiple matterwave solitons,the asymptotic analysis is performed to obtain the algebraic expressions of the soliton components in the𝑁matter-wave solitons and triple-pole matter-wave *** asymptotic results indicate that the matter-wave solitons in the spinor BECs possess the property of maintaining their energy content and coherence during the propagation and ***,in the𝑁matter-wave solitons,each soliton component contributes to the phase shifts of the other soliton components;and in the triple-pole matter-wave solitons,stable attractive forces exist between the different matter-wave soliton *** multiple matter-wave solitons are graphically illustrated through three-dimensional plots,density plot and contour plot,which are consistent with the asymptotic analysis *** present analysis may provide the explanations for the complex natural mechanisms of the matter waves in the spinor BECs,and may have potential applications in designs of atom lasers,atom interferometry and coherent atom transport.

关键词： soliton solitons asymptotic

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Chiral phonon activated spin Seebeck effect in chiral materials

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Science China(Physics,Mechanics & Astronomy) 2024年第3期67卷 149-155页

作者： Xiao Li Jinxin zhong Jinluo cheng Hao Chen Huiqian Wang Jun Liu Dali Sun Lifa Zhang Jun zhou Phonon Engineering Research Center of Jiangsu Province Center for Quantum Transport and Thermal Energy ScienceSchool of Physics and TechnologyNanjing Normal UniversityNanjing 210023China Center for Phononics and Thermal Energy Science China-EU Joint Lab for NanophononicsSchool of Physics Science and EngineeringTongji UniversityShanghai 200092China Changchun Institute of Optics Fine Mechanics and PhysicsChinese Academy of ScienceChangchun 130033China Department of Mechanical and Aerospace Engineering North Carolina State UniversityRaleigh NC 27606USA Department of Physics North Carolina State UniversityRaleigh NC 27695USA Organic and Carbon Electronics Laboratories(ORaCEL) North Carolina State UniversityRaleigh NC 27606USA

Efficient generation of spin polarization is very important for spintronics and quantum computation. In chiral materials without magnetic order nor spin-orbit coupling, we find a new spin selectivity effect—chiral phonon activated spin Seebeck(CPASS)effect. Starting with the nonequilibrium distribution of chiral phonons under a temperature gradient, the CPASS coefficients are computed based on the Boltzmann transport theory. With both the phonon-drag and band transport contributions, the spin accumulations generated by the CPASS effect exhibit quadratic dependence on the temperature gradient. The strength of the CPASS effect and the relative magnitude of both contributions are tunable by the chemical potential modulation. The CPASS effect, which gives a promising explanation on the traditional chiral-induced spin selectivity effect, provides opportunities for the exploration of advanced spintronic devices based on chiral materials even in the absence of any magnetic order and spin-orbit coupling.

关键词： spin Seebeck effect chiral phonon phonon-drag contribution efficient spin generation

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Mixing states and secondary formation processes of organic nitrogen-containing single particles in Guangzhou,China

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Journal of Environmental Sciences 2024年第4期138卷 62-73页

作者： Lijun Yun Chunlei cheng Suxia Yang Zaihua Wang Mei Li Qi En zhong LiyuanMao Sulin Liu Xiaoya cheng Duanying Chen Fan Yang Zhen zhou Institute of Mass Spectrometry and Atmospheric Environment Guangdong Provincial Engineering Research Center for on-line source apportionment system of air pollutionJinan UniversityGuangzhou 510632China Guangdong-Hongkong-Macao Joint Laboratory of Collaborative Innovation for Environmental Quality Guangzhou 510632China State Key Laboratory of Loess and Quaternary Geology Institute of Earth EnvironmentChinese Academy ScienceXi’an 710061China Institute for Environment and Climate Research Jinan UniversityGuangzhou 510632China Guangdong Academy of Sciences Institute of Resources Utilization and Rare Earth DevelopmentGuangzhou 510650China Environmental Monitoring Station of Pudong New District Shanghai 201200China

Organic nitrogen(ON)compounds play a significant role in the light absorption of brown carbon and the formation of organic aerosols,however,the mixing state,secondary formation processes,and influencing factors of ON compounds are still *** paper reports on the mixing state of ON-containing particles based on measurements obtained using a highperformance single particle aerosol mass spectrometer in January 2020 in *** ON-containing particles accounted for 21% of the total detected single particles,and the particle count and number fraction of the ON-containing particles were two times higher at night than during the *** prominent increase in the content of ON-containing particles with the enhancement of NO_xmainly occurred at night,and accompanied by high relative humidity and nitrate,which were associated with heterogeneous reactions between organics and gaseous NO_(x)and/or NO_(3)*** synchronous decreases in ON-containing particles and the mass absorption coefficient of water-soluble extracts at 365 nm in the afternoon may be associated with photo-bleaching of the ON species in the *** addition,the positive matrix factorization analysis found five factors dominated the formation processes of ON particles,and the nitrate factor(33%)mainly contributed to the production of ON particles at *** results of this study provide unique insights into the mixing states and secondary formation processes of the ON-containing particles.

关键词： Organic nitrogen compounds Single particles Mixing state Secondary formation Nighttime chemistry

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