This paper delves into Agile Development Methods in Software Engineering,contrasting them with the traditional Waterfall model and analyzing their efficiency.Agile methods,known for their adaptability and customer-cen...This paper delves into Agile Development Methods in Software Engineering,contrasting them with the traditional Waterfall model and analyzing their efficiency.Agile methods,known for their adaptability and customer-centric approach,have gained prominence in the fast-paced software development industry.These methods,including Scrum,Kanban,and Extreme Programming(XP),are characterized by iterative cycles,collaborative efforts,and a focus on rapid delivery and quality improvement.The paper compares these agile methodologies to the sequential and rigid Waterfall model,highlighting agile’s superior flexibility,adaptability,and responsiveness to changing requirements.It emphasizes the importance of customer involvement in agile processes,which leads to higher satisfaction and better alignment with user expectations.The analysis reveals that agile methods not only enhance the speed of delivery but also improve the overall quality of the software product.The paper concludes that agile methodologies are more effective in today's dynamic software development environment,providing a robust framework for managing complex projects and ensuring the delivery of high-quality,relevant software solutions.展开更多
目的探究医科达Agility多叶准直器直线加速器在调强放射治疗计划中的剂量学优势。方法选择采用Monaco系统的30例肿瘤患者,其中男性14例,女性16例;年龄44~69岁,平均年龄58岁;肿瘤类型,头部肿瘤5例,颈部肿瘤5例,胸部肿瘤5例,乳腺癌5例,腹...目的探究医科达Agility多叶准直器直线加速器在调强放射治疗计划中的剂量学优势。方法选择采用Monaco系统的30例肿瘤患者,其中男性14例,女性16例;年龄44~69岁,平均年龄58岁;肿瘤类型,头部肿瘤5例,颈部肿瘤5例,胸部肿瘤5例,乳腺癌5例,腹部肿瘤5例,盆腔肿瘤5例。先用MLCi2多叶准直器进行放射治疗设计(MLCi2 MLC计划)。不改变计划,再用Agility多叶准直器进行放射治疗设计(Agility MLC计划)。加速器升级成Agility多叶准直器前后调强放射治疗计划的适形度指数、均匀性指数及各类危及器官剂量的差异性进行比较。结果不同放射治疗设计下,30例癌症患者计划靶区的均匀性指数(0.13±0.07 vs 0.10±0.05)和适形度指数(0.73±0.17 vs 0.75±0.13),腹部肿瘤患者计划靶区的均匀性指数(0.12±0.09 vs 0.09±0.03)和适形度指数(0.78±0.05 vs 0.81±0.06),以及肺(V20)[(23.53±11.80)cm^(3)vs(20.85±9.23)cm^(3)]、小肠(D_(max))[(5344.67±407.89)cGy vs(5244.76±361.13)cGy]、腮腺(V_(50))[(18.34±7.72)cm^(3)vs(12.23±10.27)cm^(3)]重要危及器官差异具有统计学意义(P<0.05)。Agility多叶准直器会产生大量的孤岛野,孤岛野达到总射野数的50.0%、52.3%、55.6%,孤岛野会大幅度提高双靶区患者的靶区适形度和均匀性。结论Agility多叶准直器对肿瘤的调强放射治疗计划的靶区均匀性和危及器官的保护限制均具有优势,尤其针对腹部肿瘤和双靶区患者。展开更多
Purpose： The aim of this study was to assess the effects of combining the FIFA 11＋ and acute vibration training on reactive strength index （RSI） and 505 agility. Methods： Seventy-four male collegiate soccer playe...Purpose： The aim of this study was to assess the effects of combining the FIFA 11＋ and acute vibration training on reactive strength index （RSI） and 505 agility. Methods： Seventy-four male collegiate soccer players took part in the study and were randomly assigned to FIFA 11＋ with acute vibration group （FIFA ＋ WBV）, FIFA 11＋ with isometric squat group （FIFA ＋ IS） or a control group consisting of the F1FA 11＋ alone （Con）. The warm-up consisted of the FIFA 11＋ and was administered to all participants. The participants in the acute vibration group were exposed to 30 s whole body vibration in squat position immediately post warm-up. The isometric group completed an isometric squat for 30 s immediately post warm-up. Results： RSI significantly improved pre- to post-intervention amongst FIFA ＋ WBV （p 〈 0.001） due to a decrease in contact time （p 〈 0.001） in comparison to FIFA ＋ IS and Con, but 505 agility was not affected. Conclusion： The results of this study suggest the inclusion of an acute bout of WBV post FIFA 11＋ warm-up produces a neuromuscular response leading to an improvement in RSI. Future research is required to examine the exact mechanisms behind these improvements amongst other populations and over time course of the performance.展开更多
文摘This paper delves into Agile Development Methods in Software Engineering,contrasting them with the traditional Waterfall model and analyzing their efficiency.Agile methods,known for their adaptability and customer-centric approach,have gained prominence in the fast-paced software development industry.These methods,including Scrum,Kanban,and Extreme Programming(XP),are characterized by iterative cycles,collaborative efforts,and a focus on rapid delivery and quality improvement.The paper compares these agile methodologies to the sequential and rigid Waterfall model,highlighting agile’s superior flexibility,adaptability,and responsiveness to changing requirements.It emphasizes the importance of customer involvement in agile processes,which leads to higher satisfaction and better alignment with user expectations.The analysis reveals that agile methods not only enhance the speed of delivery but also improve the overall quality of the software product.The paper concludes that agile methodologies are more effective in today's dynamic software development environment,providing a robust framework for managing complex projects and ensuring the delivery of high-quality,relevant software solutions.
文摘目的探究医科达Agility多叶准直器直线加速器在调强放射治疗计划中的剂量学优势。方法选择采用Monaco系统的30例肿瘤患者,其中男性14例,女性16例;年龄44~69岁,平均年龄58岁;肿瘤类型,头部肿瘤5例,颈部肿瘤5例,胸部肿瘤5例,乳腺癌5例,腹部肿瘤5例,盆腔肿瘤5例。先用MLCi2多叶准直器进行放射治疗设计(MLCi2 MLC计划)。不改变计划,再用Agility多叶准直器进行放射治疗设计(Agility MLC计划)。加速器升级成Agility多叶准直器前后调强放射治疗计划的适形度指数、均匀性指数及各类危及器官剂量的差异性进行比较。结果不同放射治疗设计下,30例癌症患者计划靶区的均匀性指数(0.13±0.07 vs 0.10±0.05)和适形度指数(0.73±0.17 vs 0.75±0.13),腹部肿瘤患者计划靶区的均匀性指数(0.12±0.09 vs 0.09±0.03)和适形度指数(0.78±0.05 vs 0.81±0.06),以及肺(V20)[(23.53±11.80)cm^(3)vs(20.85±9.23)cm^(3)]、小肠(D_(max))[(5344.67±407.89)cGy vs(5244.76±361.13)cGy]、腮腺(V_(50))[(18.34±7.72)cm^(3)vs(12.23±10.27)cm^(3)]重要危及器官差异具有统计学意义(P<0.05)。Agility多叶准直器会产生大量的孤岛野,孤岛野达到总射野数的50.0%、52.3%、55.6%,孤岛野会大幅度提高双靶区患者的靶区适形度和均匀性。结论Agility多叶准直器对肿瘤的调强放射治疗计划的靶区均匀性和危及器官的保护限制均具有优势,尤其针对腹部肿瘤和双靶区患者。
文摘Purpose： The aim of this study was to assess the effects of combining the FIFA 11＋ and acute vibration training on reactive strength index （RSI） and 505 agility. Methods： Seventy-four male collegiate soccer players took part in the study and were randomly assigned to FIFA 11＋ with acute vibration group （FIFA ＋ WBV）, FIFA 11＋ with isometric squat group （FIFA ＋ IS） or a control group consisting of the F1FA 11＋ alone （Con）. The warm-up consisted of the FIFA 11＋ and was administered to all participants. The participants in the acute vibration group were exposed to 30 s whole body vibration in squat position immediately post warm-up. The isometric group completed an isometric squat for 30 s immediately post warm-up. Results： RSI significantly improved pre- to post-intervention amongst FIFA ＋ WBV （p 〈 0.001） due to a decrease in contact time （p 〈 0.001） in comparison to FIFA ＋ IS and Con, but 505 agility was not affected. Conclusion： The results of this study suggest the inclusion of an acute bout of WBV post FIFA 11＋ warm-up produces a neuromuscular response leading to an improvement in RSI. Future research is required to examine the exact mechanisms behind these improvements amongst other populations and over time course of the performance.
