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Liang MR, Han DX, Jiang W, Liu H, Li L, Zhong ML, Luo L, Zeng SY. [Laparoscopic type C1 hysterectomy based on the anatomic landmark of the uterus deep vein and its branches for cervical cancer]. Zhonghua Zhong Liu Za Zhi 2018; 40:288-294. [PMID: 29730917 DOI: 10.3760/cma.j.issn.0253-3766.2018.04.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To introduce the laparoscopic type C1 hysterectomy based on the anatomic landmark of the uterus deep vein and its branched and to evaluate its feasibility and safety for cervical cancer and its effect to bladder function and to provide some reference to simplify the surgical procedures of laparoscopic type C1 hysterectomy. Methods: The clinicopathologic data of the patients with stage ⅠA2~ⅡB cervical cancer and who underwent the laparoscopic C1 hysterectomy based on anatomic landmark of the uterus deep vein and its branches between March 2010 and December 2015 was retrospectively analysed. Results: A total of 99 patients received laparoscopic type C1 hysterectomy based on the anatomic landmark of the uterus deep vein and its branches, in which 93 patients reserved unilateral or bilateral pelvic autonomic nerve successfully, the other 6 patients were transfered to receive type C2 hysterectomy due to adhesions, bleeding or the low possibility of curative resection. The failure rate of the surgery was 6.1% (6/99). The average age of these 93 patients was 44.4±8.2 years (range 25~61 years) and there was one case of stage ⅠA2, 84 stage ⅠB1, 2 stage ⅠB2, 5 stage ⅡA1 and 1 stage ⅡB. The number of patients with squamous cell carcinoma was 67, adenocarcinoma was 19, adenosquamous carcinoma was 3, small cell neuroendocrine carcinoma was 3 and mixed type was 1. The average operation time was 4.1±0.5 h, the average amount of intraoperative blood loss was 103.8±84.0 ml and the mean number of excisional pelvic lymph nodes was 29.7±8.9. There was no patient with positive parametrial margin, positive vaginal margin or intraoperative ureteral injury. The postoperative catheter extraction time was 20.3±8.4 d. The median follow-up time was 20 months (rang 5~44 months), the long-term bladder dysfunction rate was 8.6% (8/93). The numbers of locally uncontrolled and distantly metastasis case were both one and both patients died. The fatality rate were 2.2% (2/93). The two-year disease-free survival and overall survival rate were 97.6% and 96.2%, respectively. Conclusion: Laparoscopic type C1 hysterectomy based on the anatomic landmark of the uterus deep vein and its branches is a safe and feasible treatment method for cervical cancer and it provides a new approach for simplifying the surgical procedures of laparoscopic type C1 hysterectomy.
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Affiliation(s)
- M R Liang
- Medical College of Nanchang University, Nanchang 330006, China
| | - D X Han
- Department of Nephrology, Jiangxi Provincial Children's Hospital, Nanchang 330006, China
| | - W Jiang
- Department of Gynecologic Oncology, Jiangxi Maternal and Child Health Hospital, Nanchang 330006, China
| | - H Liu
- Department of Gynecologic Oncology, Jiangxi Maternal and Child Health Hospital, Nanchang 330006, China
| | - L Li
- Department of Gynecologic Oncology, Jiangxi Maternal and Child Health Hospital, Nanchang 330006, China
| | - M L Zhong
- Department of Gynecologic Oncology, Jiangxi Maternal and Child Health Hospital, Nanchang 330006, China
| | - L Luo
- Department of Pharmacy, Jiangxi Maternal and Child Health Hospital, Nanchang 330006, China
| | - S Y Zeng
- Medical College of Nanchang University, Nanchang 330006, China
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Liang MR, Zeng SY, Jiang W, Li L, Zhong ML, Huang OP. Treatment and outcome of Stage I Al squamous carcinoma of the cervix: a clinicopathologic study of 346 cases. EUR J GYNAECOL ONCOL 2016; 37:775-780. [PMID: 29943919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To analyze the clinicopathologic feature of Stage I A I squamous carcinoma of the cervix (SCC) and to explore the outcome of different surgical methods. MATERIALS AND METHODS Clinicopathological data of 346 cases with Stage I Al SCC diagnosed between November 2nd, 1995 and December 31st, 2011 were reviewed and analyzed. RESULTS As major diagnostic method, 44.5% (154/346) patients accepted cold knife conization (CKC), while 58.1% (201/346) patient took total hysterectomy (TH) as their final surgical methods. The trend in treatment methods from 1995 to 2011 revealed that increasing cases were treated with CKC, modified radical hysterectomy (MRH) obviously reduced, while the proportion treated by TH remained unchanged. Due to a small number of cases receiving vaginal trachelectomy (VT) and radical trachelectomy (RT), the authors did not find any obvious changes. PROGNOSIS The overall recurrence rate was 1.2% (4/346). The overall survival rates for CKC, VT, TH, MRH, and RT were 100%, 100%, 98.2%, 100%, and 100%, and the difference was not statistically significant (p = 0.819). The incidence rate of LVSI was 4.9% (17/346), the overall survival rates for patients with LVSI and without LVSI were 99.3% and 93.3%, respectively, and there was statistical difference between them (p = 0.003). Univariate analysis showed that only LVSI was an important predictor for survival (p = 0.030). CONCLUSIONS the treatments for Stage I Al SCC are becoming more conservative, and individualized therapy and more frequent surveillance should be administrated to those patients with LVSI.
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Liang MR, Zeng SY, Jiang W, Li L, Zhong ML, Huang OP. TREATMENT AND OUTCOME OF STAGE I A1 SQUAMOUS CARCINOMA OF THE CERVIX: A CLINICOPATHOLOGIC STUDY OF 346 CASES: IGCS-0011 Cervical Cancer. Int J Gynecol Cancer 2015. [DOI: 10.1136/00009577-201505001-00006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Lu LL, Xu P, Zhong ML, Bai YF, Zhu SN. Orbital angular momentum entanglement via fork-poling nonlinear photonic crystals. Opt Express 2015; 23:1203-1212. [PMID: 25835879 DOI: 10.1364/oe.23.001203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We report a compact scheme for the generation and manipulation of photon pairs entangled in the orbital angular momentum (OAM) from the fork-poling quadratic nonlinear crystal. The χ(2)-modulation in this crystal is designed for fulfilling a tilted quasi-phase-matching geometry to ensure the efficient generation of entangled photons as well as for transferring of topological charge of the crystal to the photon pairs. Numerical results show that the OAM of photon pair is anti-correlated and the degree of OAM entanglement can be enhanced by modulating the topological charge of crystal, which indicates a feasible extension to high-dimensional OAM entanglement. These studies suggest that the fork-poling nonlinear photonic crystal a unique platform for compact generation and manipulation of high-dimensional and high-order OAM entanglement, which may have potential applications in quantum communication, quantum cryptography and quantum remote sensing.
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Ye XH, Yu F, Curioni M, Lin Z, Zhang HJ, Zhu HW, Liu Z, Zhong ML. Corrosion resistance of graphene directly and locally grown on bulk nickel substrate by laser irradiation. RSC Adv 2015. [DOI: 10.1039/c5ra01267h] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Graphene grown using a laser is superior at resisting the acid corrosive environment for realizing real application in the anti-corrosion field.
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Affiliation(s)
- X. H. Ye
- School of Materials Science and Engineering
- Tsinghua University
- Beijing
- China
| | - F. Yu
- Corrosion Protection Centre
- School of Materials
- The University of Manchester
- Manchester
- UK
| | - M. Curioni
- Corrosion Protection Centre
- School of Materials
- The University of Manchester
- Manchester
- UK
| | - Z. Lin
- School of Materials Science and Engineering
- Tsinghua University
- Beijing
- China
| | - H. J. Zhang
- School of Materials Science and Engineering
- Tsinghua University
- Beijing
- China
| | - H. W. Zhu
- School of Materials Science and Engineering
- Tsinghua University
- Beijing
- China
| | - Z. Liu
- Corrosion Protection Centre
- School of Materials
- The University of Manchester
- Manchester
- UK
| | - M. L. Zhong
- School of Materials Science and Engineering
- Tsinghua University
- Beijing
- China
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Jin H, Liu FM, Xu P, Xia JL, Zhong ML, Yuan Y, Zhou JW, Gong YX, Wang W, Zhu SN. On-chip generation and manipulation of entangled photons based on reconfigurable lithium-niobate waveguide circuits. Phys Rev Lett 2014; 113:103601. [PMID: 25238358 DOI: 10.1103/physrevlett.113.103601] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Indexed: 05/14/2023]
Abstract
A consequent tendency toward high-performance quantum information processing is to develop the fully integrated photonic chip. Here, we report the on-chip generation and manipulation of entangled photons based on reconfigurable lithium-niobate waveguide circuits. By introducing a periodically poled structure into the waveguide circuits, two individual photon-pair sources with a controllable electro-optic phase shift are produced within a Hong-Ou-Mandel interferometer, resulting in a deterministically separated identical photon pair. The state is characterized by 92.9±0.9% visibility Hong-Ou-Mandel interference. The photon flux reaches ∼1.4×10(7) pairs nm-1 mW-1. The whole chip is designed to contain nine similar units to produce identical photon pairs spanning the telecom C and L band by the flexible engineering of nonlinearity. Our work presents a scenario for on-chip engineering of different photon sources and paves the way to fully integrated quantum technologies.
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Affiliation(s)
- H Jin
- National Laboratory of Solid State Microstructures and College of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - F M Liu
- Beijing Institute of Aerospace Control Devices, Beijing 100094, China
| | - P Xu
- National Laboratory of Solid State Microstructures and College of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - J L Xia
- Beijing Institute of Aerospace Control Devices, Beijing 100094, China
| | - M L Zhong
- National Laboratory of Solid State Microstructures and College of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Y Yuan
- National Laboratory of Solid State Microstructures and College of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - J W Zhou
- Beijing Institute of Aerospace Control Devices, Beijing 100094, China
| | - Y X Gong
- Department of Physics, Southeast University, Nanjing 211189, China
| | - W Wang
- Beijing Institute of Aerospace Control Devices, Beijing 100094, China
| | - S N Zhu
- National Laboratory of Solid State Microstructures and College of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
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Chen L, Xu P, Bai YF, Luo XW, Zhong ML, Dai M, Lu MH, Zhu SN. Concurrent optical parametric down-conversion in χ(2) nonlinear photonic crystals. Opt Express 2014; 22:13164-13169. [PMID: 24921512 DOI: 10.1364/oe.22.013164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We experimentally investigated concurrent parametric downconversion processes in a two-dimensional hexagonally poled lithium tantalate crystal. The substantial enhancement of parametric gain was observed when concurrent processes shared a common parametric beam. Both degenerate and nondegenerate concurrent parametric downconversion processes were studied. Analyses of the spatial forms and output angles showed a strong dependence on the working temperature, during which a well-defined beamlike parametric output was observed. Our results will stimulate the design for coherent high-gain generation of multiple parametric beams and also shed light on the compact engineering of path-entanglement with specific spatial forms based on concurrent spontaneous parametric downconversion processes.
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Cheng H, Jiang XD, Hu XP, Zhong ML, Lv XJ, Zhu SN. Diode-pumped 1988-nm Tm:YAP laser mode-locked by intracavity second-harmonic generation in periodically poled LiNbO₃. Opt Lett 2014; 39:2187-2190. [PMID: 24686707 DOI: 10.1364/ol.39.002187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We report a diode-pumped intracavity second-harmonic generation mode-locked solid-state Tm:YAP laser operating at 1988 nm using a periodically poled congruent LiNbO3 as the nonlinear crystal. The threshold of continuous wave mode locking is 11.6 W. The maximum output power is 1.67 W, while the shortest pulse obtained is 4.7 ps at a repetition rate of 97.09 MHz.
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Jin H, Xu P, Luo XW, Leng HY, Gong YX, Yu WJ, Zhong ML, Zhao G, Zhu SN. Compact engineering of path-entangled sources from a monolithic quadratic nonlinear photonic crystal. Phys Rev Lett 2013; 111:023603. [PMID: 23889400 DOI: 10.1103/physrevlett.111.023603] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Indexed: 06/02/2023]
Abstract
An integrated realization of photonic entangled states becomes an inevitable tendency toward integrated quantum optics. Here we report the compact engineering of steerable photonic path-entangled states from a monolithic quadratic nonlinear photonic crystal. The crystal acts as a coherent beam splitter to distribute photons into designed spatial modes, producing the heralded single-photon and appealing beamlike two-photon path entanglement. We characterize the path entanglement by implementing quantum spatial beating experiments. Such a multifunctional entangled source can be further extended to the high-dimensional fashion and multiphoton level, which paves a desirable way to engineering miniaturized quantum light sources.
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Affiliation(s)
- H Jin
- National Laboratory of Solid State Microstructures, College of Physics, and National Center of Microstructures and Quantum Manipulation, Nanjing University, Nanjing 210093, China
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Shi J, Xu P, Zhong ML, Gong YX, Bai YF, Yu WJ, Li QW, Jin H, Zhu SN. Heralded generation of multipartite entanglement for one photon by using a single two-dimensional nonlinear photonic crystal. Opt Express 2013; 21:7875-7881. [PMID: 23571878 DOI: 10.1364/oe.21.007875] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We propose a compact scheme for the heralded generation of single-photon multipartite entanglement by using a single two-dimensional nonlinear photonic crystal. Studies have shown that by appropriate structure design, the single-photon entanglement shared among three spatially distinct optical modes can be generated through three concurrent spontaneous parametric down-conversion processes by using the other photon in an identical spatial mode as a trigger. Furthermore, we analyze the entanglement of such heralded single-photon tripartite W-type state theoretically. This method can be expanded for the heralded single-photon N-partite entanglement generation. This compact and stable quantum light source may act as a key ingredient in quantum information science.
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Affiliation(s)
- J Shi
- National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing 210093, China
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Zhang Y, Gong T, Liu WJ, Wei JQ, Zhang XF, Wang KL, Zhong ML, Wu DH. Angle-dependent light emission from aligned multiwalled carbon nanotubes under CO(2) laser irradiation. Nanotechnology 2007; 18:075710. [PMID: 21730518 DOI: 10.1088/0957-4484/18/7/075710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
This paper reports the light emission from aligned multiwalled carbon nanotubes (MWNTs) under continuous wave CO(2) laser (λ = 10.6 µm) irradiation. Results indicate that the light emission is dependent on the angle θ between the laser incident direction and the nanotube axis. The relative intensity of the light emission at certain wavelengths shows a Lorentzian feature when θ varies from 0° to 90°. The Lorentzian fitting curve displays a distinct tendency between shorter (λ<600 nm) and longer wavelength (λ>700 nm). A minimum intensity was observed at θ(m) close to 67° under shorter wavelength, whereas a maximum intensity was shown at θ(m) of about 60° at longer wavelength. These results show the anisotropic property of aligned MWNTs.
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Affiliation(s)
- Y Zhang
- Key Laboratory for Advanced Manufacturing by Materials Processing Technology, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
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