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The “Colonial Wig” pancreaticojejunostomy:zero leaks with a novel technique for reconstruction after pancreaticoduodenectomy 被引量:3
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作者 Xihua Yang Pouya Aghajafari +2 位作者 Naeem Goussous Shirali T Patel Steven C Cunningham 《Hepatobiliary & Pancreatic Diseases International》 SCIE CAS CSCD 2017年第5期545-551,共7页
BACKGROUND: Postoperative pancreatic fistula(POPF) remains common and morbid after pancreaticoduodenectomy(PD). A major advance in the study of POPF is the fistula risk score(FRS).METHODS: We analyzed 48 consecutive p... BACKGROUND: Postoperative pancreatic fistula(POPF) remains common and morbid after pancreaticoduodenectomy(PD). A major advance in the study of POPF is the fistula risk score(FRS).METHODS: We analyzed 48 consecutive patients undergoing PD. The 'Colonial Wig' pancreaticojejunostomy(CWPJ) technique was used in the last 22 PDs, we compared 22 CWPJ to 26 conventional PDs. RESULTS: Postoperative morbidity was 49%(27% Clavien grade >2). The median length of hospital stay was 11 days. In the first 26 PDs, the PJ was performed according to standard techniques and the clinically relevant POPF(CR-POPF) rate was 15%, similar to the FRS-predicted rate(14%). In the next 22 PJs, the CWPJ was employed. Although the FRS-predicted rates were similar in these two groups(14% vs 13%), the CRPOPF rate in the CWPJ group was 0(P=0.052).CONCLUSION: Early experience with the CWPJ is encouraging, and this anastomosis may be a safe and effective way to lower POPF rates. 展开更多
关键词 PANCREATECTOMY postoperative pancreatic fistula fistula risk score anastomosis novel surgical technique
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A Novel Technique to Measure Gain Spectrum for Fabry-Pérot Semiconductor Lasers
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作者 Wei-Hua Guo, Qiao-Yin Lu, Yong-Zhen Huang, Chun-Lin Han, Li-Juan Yu State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912, Beijing 100083, China, Tel: 010-82304524, E-mail: gwh@redsemi.ac.cn 《光学学报》 EI CAS CSCD 北大核心 2003年第S1期331-332,共2页
A novel gain measurement technique based on the integration of the measured amplified spontaneous emission spectrum multiplying a phase function over one longitudinal mode interval is proposed for Fabry-Perot semicond... A novel gain measurement technique based on the integration of the measured amplified spontaneous emission spectrum multiplying a phase function over one longitudinal mode interval is proposed for Fabry-Perot semiconductor lasers. 展开更多
关键词 for of ab in ASE rot Semiconductor Lasers A novel technique to Measure Gain Spectrum for Fabry-P
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A Novel Technique of Measuring SOA Differential Carrier Lifetime and a -Factor Using SOA Optical Modulation Response
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作者 Ki-Hyuk Lee Woo-Young Choi 《光学学报》 EI CAS CSCD 北大核心 2003年第S1期503-504,共2页
We demonstrate a new technique of measuring differential carrier lifetime and linewidth enhancement factor in a semiconductor optical amplifier. In our method, the optical responses and fiber transfer functions of a s... We demonstrate a new technique of measuring differential carrier lifetime and linewidth enhancement factor in a semiconductor optical amplifier. In our method, the optical responses and fiber transfer functions of a self-gain modulated SOA are measured and, from these, values of carrier lifetimes and linewidth enhancement factors are determined for various SOA input optical powers. 展开更多
关键词 SOA in as A novel technique of Measuring SOA Differential Carrier Lifetime and a Factor Using SOA Optical Modulation Response of
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A Novel Sample Introduction Technique for the Simultaneous Determination of As,Se,Ge and Hg in Chinese Medicinal Material 被引量:1
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《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2001年第4期400-406,共7页
A novel technique of Moveable Reduction Bed Hydride Generator(MRBHG)was applied tohe hydride generation or cold vapor generation of As,Se,Ge,and Hg existing In TraditionalChinese Medicinal Material(TCM).The si... A novel technique of Moveable Reduction Bed Hydride Generator(MRBHG)was applied tohe hydride generation or cold vapor generation of As,Se,Ge,and Hg existing In TraditionalChinese Medicinal Material(TCM).The simultaneous determination of the multi-elements wasperformed with ICP-MS.A solid reduction system involving the use of potassiumtetraborohydride and tartaric acid was applied to generating metal hydride or cold vaporefficiently.The factors affecting the metal cold vapor generation were studied.The mainadvantage of the technique is that only a 4μL volume of sample was required for the cold vapor 展开更多
关键词 for the Simultaneous Determination of As Se Ge A novel Sample Introduction technique CHINESE MATERIAL MEDICINAL and HG Ge
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AENO:a Novel Reconstruction Method in Conjunction with ADER Schemes for Hyperbolic Equations
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作者 Eleuterio F.Toro Andrea Santacá +2 位作者 Gino I.Montecinos Morena Celant Lucas O.Müller 《Communications on Applied Mathematics and Computation》 2023年第2期776-852,共77页
In this paper,we present a novel spatial reconstruction scheme,called AENO,that results from a special averaging of the ENO polynomial and its closest neighbour,while retaining the stencil direction decided by the ENO... In this paper,we present a novel spatial reconstruction scheme,called AENO,that results from a special averaging of the ENO polynomial and its closest neighbour,while retaining the stencil direction decided by the ENO choice.A variant of the scheme,called m-AENO,results from averaging the modified ENO(m-ENO)polynomial and its closest neighbour.The concept is thoroughly assessed for the one-dimensional linear advection equation and for a one-dimensional non-linear hyperbolic system,in conjunction with the fully discrete,high-order ADER approach implemented up to fifth order of accuracy in both space and time.The results,as compared to the conventional ENO,m-ENO and WENO schemes,are very encouraging.Surprisingly,our results show that the L_(1)-errors of the novel AENO approach are the smallest for most cases considered.Crucially,for a chosen error size,AENO turns out to be the most efficient method of all five methods tested. 展开更多
关键词 Hyperbolic equations High-order ADER ENO/m-ENO/WENO novel reconstruction technique AENO/m-AENO
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Novel endoscopic papillectomy for reducing postoperative adverse events(with videos) 被引量:4
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作者 Lei Jiang En-Qiang Ling-Hu +10 位作者 Ning-Li Chai Wen Li Feng-Chun Cai Ming-Yang Li Xu Guo Jiang-Yun Meng Xiang-Dong Wang Ping Tang Jing Zhu Hong Du Hong-Bin Wang 《World Journal of Gastroenterology》 SCIE CAS 2020年第40期6250-6259,共10页
BACKGROUND Pancreatic adenoma can potentially transform into adenocarcinoma, so it is recommended to be resected surgically or endoscopically. Endoscopic papillectomy is one of the main treatments for papillary adenom... BACKGROUND Pancreatic adenoma can potentially transform into adenocarcinoma, so it is recommended to be resected surgically or endoscopically. Endoscopic papillectomy is one of the main treatments for papillary adenoma, and bleeding, perforation, and pancreatitis are the most frequent and critical adverse events that restrict its wider use. There is no standard procedure for endoscopic papillectomy yet. The procedure is relevant to postoperative adverse events.AIM To reduce the postoperative adverse event rates and improve patients' postoperative condition, we developed a standard novel procedure for endoscopic papillectomy.METHODS The novel endoscopic papillectomy had two main modifications based on the conventional method: The isolation of bile from pancreatic juice with a bile duct stent and wound surface protection with metal clips and fibrin glue. We performed a single-center retrospective comparison study on the novel and conventional methods to examine the feasibility of the novel method for reducing postoperative adverse events.RESULTS A total of 76 patients, of whom 23 underwent the novel procedure and 53 underwent the conventional procedure, were retrospectively evaluated in this study. The postoperative bleeding and pancreatitis rates of the novel method were significantly lower than those of the conventional method(0 vs 20.75%, P = 0.028, and 17.4% vs 41.5%, P = 0.042, respectively). After applying the novel method, the most critical adverse event, perforation, was entirely prevented, compared to a prevalence of 5.66% with the conventional method. Several postoperative symptoms, including fever, rapid pulse, and decrease in hemoglobin level, were significantly less frequent in the novel group(P = 0.042, 0.049, and 0.014, respectively). Overall, the total adverse event rate of the novel method was lower(0 vs 24.5%, P = 0.007) than that of the conventional method.CONCLUSION Patients who underwent the novel procedure had lower postoperative adverse event rates. This study demonstrates the potential efficacy and safety of the novel endoscopic papillectomy in reducing postoperative adverse events. 展开更多
关键词 Endoscopic papillectomy novel technique Adverse events Papillary adenoma Endoscopic retrograde cholangiopancreatography Bile duct stent
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Technological advancements in millet dehulling and polishing process: An insight into pretreatment methods, machineries and impact on nutritional quality
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作者 Shagolshem Mukta Singh Jayasree Joshi T P.Srinivasa Rao 《Grain & Oil Science and Technology》 CAS 2024年第3期186-195,共10页
Millets are widely recognized for their nutritional significance;however, the methods employed for their processing are currently lacking. This article primarily focuses on the advanced technologies and progressions i... Millets are widely recognized for their nutritional significance;however, the methods employed for their processing are currently lacking. This article primarily focuses on the advanced technologies and progressions in millet dehulling and polishing. These technologies operate based on the fundamental principles of compression-shearing, abrasion-friction, and centrifugal-impact forces. Processing of millets can be challenging because of the physical characteristics and tight attachment of hull and bran to the endosperm. However, several dehullers have been designed to solve this problem for different kinds of millets. In addition, the nutritional and anti-nutritional characteristics undergo alterations due to both dehulling and polishing processes. These alterations are thoroughly examined and discussed in this article. Specifically, anti-nutrients such as tannins and phytate are predominantly found in the outer pericarp of the grain and experience a reduction after undergoing dehulling and polishing. The nutritional properties are also subjected to a reduction;however, this reduction can be mitigated by subjecting the grains to certain pretreatments before dehulling and polishing. These treatments serve to enhance dehulling efficiency and nutrient digestibility while simultaneously reducing the presence of anti-nutrients. Novel thermal and non-thermal methodologies such as microwave, hydrothermal, high-pressure processing, and ohmic heating can be employed for processing millets, thereby diminishing the loss of nutrients. Additional research can be carried out to investigate their impact on the dehulling and polishing of millets. 展开更多
关键词 MILLETS DEHULLING POLISHING PRETREATMENT novel thermal and non-thermal techniques
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AB091.A novel method for the measurement of pulsatile choroidal blood flow based on video-rate OCT imaging and automated segmentation of the choroid:description and reproducibility
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作者 Diane N.Sayah Wenzhen Zuo +3 位作者 Javier Mazzaferri Luke Beaton Santiago Costantino Mark R.Lesk 《Annals of Eye Science》 2018年第1期497-497,共1页
Background:Over the years,a variety of non-invasive techniques have been developed to allow the measurement of blood flow in living human eyes.However,none of the existing techniques has yet been adopted in clinical p... Background:Over the years,a variety of non-invasive techniques have been developed to allow the measurement of blood flow in living human eyes.However,none of the existing techniques has yet been adopted in clinical practice due to their limitations and lack of standardization.Moreover,no reliable technique is currently available to measure the pulsatile choroidal blood flow(PCBF).We propose a novel method based on video-rate optical coherence tomography(OCT)imaging and automated segmentation to measure the pulsatile component of choroidal blood flow in vivo,and demonstrate its repeatability.Methods:Adapted from our earlier work(Beaton et al.),this method uses video-rate OCT with enhanced depth imaging and automated segmentation of the choroid to measure the pulsatile choroidal volume change.Imaging is carried out at the fundus for less than a minute at 7 Hz.In each frame,choroidal thickness(CT)is measured by a segmentation algorithm based on graph cuts using an edge-probability weighting scheme.The algorithm computes the CT change corresponding to choroidal filling over the time-series and subsequently derives the pulsatile choroidal volume change through an approximate model of the eye.Fifty-eight subjects were recruited from the Maisonneuve-Rosemont Hospital and PCBF was measured twice in one eye within the same session and by a single examiner.Repeatability was assessed using the Bland-Altman plot and Intraclass correlation coefficient as calculated with SPSS.Results:Two measurements of PCBF were successfully obtained for each eye using our technique.The average measures ICC for choroidal volume change was 0.929(95%CI,0.881,0.958),showing good to excellent repeatability.The Bland-Altman plot and Pearson coefficient(r=0.840,P<0.001)showed agreement and a strong correlation respectively between intra-session measurement of OR in all examined eyes.Conclusions:This study confirms the high repeatability of pulsatile choroidal blood flow measurements obtained with our optical method,allowing further investigation of blood flow in ocular diseases such as glaucoma and AMD. 展开更多
关键词 Pulsatile choroidal blood flow(PCBF) optical coherence tomography(OCT) novel technique REPEATABILITY
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A rational preparation strategy of phase tuned MoO_(3) nanostructures for high-performance all-solid asymmetric supercapacitor 被引量:1
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作者 M.Kundu D.Mondal +7 位作者 I.Mondal A.Baral P.Halder S.Biswas B.K.Paul N.Bose R.Basu S.Das 《Journal of Energy Chemistry》 SCIE EI CSCD 2023年第12期192-206,I0006,共16页
In this work,phase and morphology-tuned MoO_(3) nanostructures are synthesized through a novel modified co-precipitation method,and their electrochemical properties are investigated.For the first time,such a simple su... In this work,phase and morphology-tuned MoO_(3) nanostructures are synthesized through a novel modified co-precipitation method,and their electrochemical properties are investigated.For the first time,such a simple surfactant-assisted synthesis process aided by minor temperature variations is reported which results in phase transition of the nanoparticles from h-MoO_(3) nano-rods to a-MoO_(3) nano-flakes.The nanostructures thus developed are highly porous and crystalline with significantly large specific surface area as compared to previous literature.The theoretical bandgap energy of the optimized sample calculated using Perdew-Zunger local density approximation(LDA) is in good agreement with the experimental findings.An overall structural,morphological,and surface-behavioural analysis predicts the electrochemical superiority in 2D a-MoO_(3).The cyclic voltammetry and galvano-potentiometry measurements of 2D a-MoO_(3) in the potential window of-0.6 V to +0.2 V present the highest pseudosupercapacitive response with a maximum specific capacitance of 829 F g^(-1)at 2 A g^(-1)as compared to h-MoO_(3) (452 F g^(-1)) and h@a-MoO_(3) (783 F g^(-1)).Thus,the MoO_(3) 2D nanostructures synthesized through our novel synthesis technique display excellent specific capacitance as compared to previous reported data.Additionally,a-MoO_(3) exhibits a galvanostatic charging-discharging cyclic stability of about 91%after 2000 cycles,indicating that it can serve as an excellent electrode material for supercapacitors.A solid-state asymmetric supercapacitor device is successfully constructed using a-MoO_(3) which can light up 4 red LEDs for 10 s.The specific energy density of the device reaches a maximum value of 36.3 W h kg^(-1)at the power density of 50 W kg^(-1). 展开更多
关键词 MoO_(3)nanoparticles Asymmetric solid-state supercapacitor Electrochemical performance Low-temperature novel synthesis technique Density functional calculations
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Nonlinear Algebraic Equations Solved by an Optimal Splitting-Linearizing Iterative Method
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作者 Chein-Shan Liu Essam REl-Zahar Yung-Wei Chen 《Computer Modeling in Engineering & Sciences》 SCIE EI 2023年第5期1111-1130,共20页
How to accelerate the convergence speed and avoid computing the inversion of a Jacobian matrix is important in the solution of nonlinear algebraic equations(NAEs).This paper develops an approach with a splitting-linea... How to accelerate the convergence speed and avoid computing the inversion of a Jacobian matrix is important in the solution of nonlinear algebraic equations(NAEs).This paper develops an approach with a splitting-linearizing technique based on the nonlinear term to reduce the effect of the nonlinear terms.We decompose the nonlinear terms in the NAEs through a splitting parameter and then linearize the NAEs around the values at the previous step to a linear system.Through the maximal orthogonal projection concept,to minimize a merit function within a selected interval of splitting parameters,the optimal parameters can be quickly determined.In each step,a linear system is solved by the Gaussian elimination method,and the whole iteration procedure is convergent very fast.Several numerical tests show the high performance of the optimal split-linearization iterative method(OSLIM). 展开更多
关键词 Nonlinear algebraic equations novel splitting-linearizing technique iterative method maximal projection optimal splitting parameter
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Intraoperative radiotherapy:principles and prospects 被引量:1
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作者 Omar Abdel-Rahman 《The Chinese-German Journal of Clinical Oncology》 CAS 2014年第3期123-129,共7页
Intraoperative radiotherapy (IORT) in its broadest sense refers to the delivery of radiation at the time of an opera- tion. It includes multiple techniques, namely intraoperative electron irradiation, intraoperative... Intraoperative radiotherapy (IORT) in its broadest sense refers to the delivery of radiation at the time of an opera- tion. It includes multiple techniques, namely intraoperative electron irradiation, intraoperative brachytherapy and intraopera- rive photon irradiation. It has a wide range of existing and potentially enlarging clinical applications. We will discuss in this review the rationale for and use of intraoperative irradiation in conjunction with surgical exploration with or without external- beam irradiation (EBRT) and chemotherapy. 展开更多
关键词 intraoperative radiotherapy (IORT) radical treatment novel surgical techniques
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The sound of blood:photoacoustic imaging in blood analysis
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作者 Mitchell Veverka Luca Menozzi Junjie Yao 《Medicine in Novel Technology and Devices》 2023年第2期13-23,共11页
Blood analysis is a ubiquitous and critical aspect of modern medicine.Analyzing blood samples requires invasive techniques,various testing systems,and samples are limited to relatively small volumes.Photoacoustic imag... Blood analysis is a ubiquitous and critical aspect of modern medicine.Analyzing blood samples requires invasive techniques,various testing systems,and samples are limited to relatively small volumes.Photoacoustic imaging(PAI)is a novel imaging modality that utilizes non-ionizing energy that shows promise as an alternative to current methods.This paper seeks to review current applications of PAI in blood analysis for clinical use.Furthermore,we discuss obstacles to implementation and future directions to overcome these challenges.Firstly,we discuss three applications to cellular analysis of blood:sickle cell,bacteria,and circulating tumor cell detection.We then discuss applications to the analysis of blood plasma,including glucose detection and anticoagulation quantification.As such,we hope this article will serve as inspiration for PAI's potential application in blood analysis and prompt further studies to ultimately implement PAI into clinical practice. 展开更多
关键词 Photoacoustic imaging Blood analysis Pathogen detection ANALYTES Photoacoustic flow cytometry novel diagnostic technique
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