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远程工作是否可行?

空中英语教室（高级版．彭蒙惠英语） 2024年第1期 16-17,42页

作者： don Lee 不详

10经历过疫情之后,巴特·瓦尔德兹有着和许多传统老板一样的心态。他认为远程工作是一种反常现象,希望所有人都能尽快回到办公桌前。“在我成长的环境里,人们都穿西装打领带,早上8点就出现在公司——没有任何借口。”这位60岁的Ingenovi... 详细信息

10经历过疫情之后,巴特·瓦尔德兹有着和许多传统老板一样的心态。他认为远程工作是一种反常现象,希望所有人都能尽快回到办公桌前。“在我成长的环境里,人们都穿西装打领带,早上8点就出现在公司——没有任何借口。”这位60岁的Ingenovis公司首席执行官说。

关键词：反常现象首席执行官瓦尔德远程办公桌老板

Calcaneal osteochondroma masquerading as plantar fasciitis: An approach to plantar heel pain-A case report and literature review

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World Journal of Orthopedics 2019年第9期10卷 339-347页

作者： don koh Yvonne Goh Nicholas Yeo Department of Orthopaedic Surgery Singapore General HospitalSingapore 169856Singapore NUS Yong Loo Lin School of Medicine NUHS Tower BlockSingapore 119228Singapore

BACKGROUND Heel pain is a common orthopaedic complaint,and if left untreated can be a source of chronic *** diagnosis can be challenging,owing to the complex anatomy and multiple pain generators present in the *** aim to share our clinical experience managing an unusual case of chronic heel pain secondary to *** SUMMARY A 41-year-old obese male who works as a porter presented with a long-standing history of left plantar heel *** was assessed to have point tenderness over the plantar insertion of the calcaneus as well as a positive Silfverski?ld *** was treated for plantar fasciitis and tight gastrocnemius but failed conservative therapies as well as surgical *** resonance imaging revealed the presence of a pedunculated bony protrusion over the plantar aspect of the *** decision was made for excision of the osteochondroma,and the patient has been pain-free *** Osteochondromas are rarely symptomatic in skeletally mature *** most are benign with a very low risk of malignant transformation,surgical excision can yield excellent results and significant pain relief in symptomatic patients.

关键词： Chronic heel pain Recalcitrant heel pain Osteochondroma Diagnostic challenge Case report

Peroneus longus tendon rupture: A case report

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World Journal of Orthopedics 2019年第1期10卷 45-53页

作者： don koh Lincoln Liow Joseph Cheah Kevin Koo Department of Orthopaedic Surgery Singapore General Hospital

BACKGROUND Peroneal tendinopathies are an under-diagnosed and potentially under-treated pathology. If left untreated it can be a cause of chronic lateral hindfoot pain. Its diagnosis is challenging owing to its low incidence and vague clinical *** SUMMARY We share a case of a patient who experienced a chronic lateral ankle pain exacerbated after alighting from a bus. This patient came to our attention only after failing conservative management on two separate occasions. Plain radiographs and magnetic resonance imaging revealed rupture of the peroneus longus tendon(PLT). Findings were confirmed intra-operatively and tenodesis of the PLT to the peroneus brevis was performed. Patient was kept non-weight-bear with his foot everted and in plantarflexion before being converted to an offloading boot at two weeks. Patient was started on a progressive rehabilitation programme at six weeks and was able to return to work shortly after with excellent *** We aim to share our experience in managing this patient and propose some pointers guided by available literature to avoid missing this commonly overlooked pathology.

关键词： Chronic lateral ankle pain Peroneus longus rupture Peroneal tendinopathy Tenodesis Diagnostic challenge Case report

Recurrent surgical site infection after anterior cruciate ligament reconstruction: A case report

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World Journal of Orthopedics 2019年第6期10卷 255-261页

作者： don koh Shi Ming Tan Andrew Hwee Chye Tan Department of Orthopaedic Surgery Singapore General Hospital

BACKGROUND Surgical site infections following anterior cruciate ligament(ACL)reconstruction are an uncommon but potentially devastating *** this study,we present an unusual case of recurrent infection of the knee after an ACL reconstruction,and discuss the importance of accurate diagnosis and appropriate management,including the issue of graft preservation versus *** SUMMARY A 33-year-old gentleman underwent ACL reconstruction using a hamstring tendon autograft with suspensory Endobutton fixation to the distal femur and an interference screw fixation to the proximal *** years after ACL reconstruction,he developed an abscess over the proximal tibia and underwent incision and *** suture material was found at the base of the abscess and was *** years later,he re-presented with a lateral distal thigh abscess that encroached the femoral *** underwent incision and drainage of the abscess which was later complicated by a chronic discharging *** magnetic resonance imaging revealed a fistulous communication between the lateral thigh wound extending toward the femoral tunnel with suggestion of *** was made for a second surgery and the patient was counselled about the need for graft removal should there be intraarticular *** arthroscopy revealed the graft to be intact with no evidence of intra-articular *** such,the decision was made to retain the ACL ***-debridement,excision of the sinus tract and removal of Endobutton was also performed in the same *** fluid cultures did not grow ***,tissue cultures from the femoral tunnel abscess grew Enterobacter cloacae complex,similar to what grew in tissue cultures from the tibial abscess five years *** view of the recurrent and indolent nature of the infection,antibiotic therapy was escalated from Clindamycin to *** completed a six-week course of intravenous antibiotics and has been w

关键词： Chronic surgical site infection Anterior cruciate ligament reconstruction Surgical site infection Graft preservation Enterobacter cloacae complex Septic arthritis Case report

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北美机车车队的更新

国外铁道机车与动车 2024年第2期 5-7页

作者： [美]don Graab 焦国超(译) 不详

2016年以来,北美电传动内燃机车制造业务持续下滑;2021年购置5台内燃机车后,至今未购入一台新造机车。这种情况可能还将持续:相较于购置新车,铁路公司更倾向于对现有机车进行翻新改造。何时能够恢复对新型机车的需求仍是未知,这主要取... 详细信息

2016年以来,北美电传动内燃机车制造业务持续下滑;2021年购置5台内燃机车后,至今未购入一台新造机车。这种情况可能还将持续:相较于购置新车,铁路公司更倾向于对现有机车进行翻新改造。何时能够恢复对新型机车的需求仍是未知,这主要取决于机车改后使用寿命的延长情况。现状持续时间越久,铁路制造企业面临的困难和挑战就越大。

关键词：北美电传动内燃机车铁路公司机车改造

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全球最危险城市什么样？加拉加斯的暴力、选美与街头锐舞

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环球人文地理 2024年第17期 56-65页

作者： Zoe Alexander Sánchez ZERYO Paolo Pietro Roccasalva don Perucho Zatletic anecaroline unsplash

近日，福布斯顾问（Forbes Advisor）发布了2024年最危险城市排行榜，委内瑞拉首都—加拉加斯，以满分100分的成绩居于榜首。评分主要参考五个指标：犯罪风险、个人安全风险、健康安全风险、基础设施风险和数字安全风险。

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Effectiveness of contrast-enhanced harmonic endoscopic ultrasound for the evaluation of solid pancreatic masses

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World Journal of Gastroenterology 2014年第2期20卷 518-524页

作者： Jin-Seok Park Hyung Kil Kim Byoung Wook Bang sang Gu Kim Seok Jeong don Haeng Lee Digestive Disease Center Department of Internal MedicineInha University School of MedicineIncheon 400-711South Korea

AIM:To evaluate the usefulness of contrast-enhanced harmonic endoscopic ultrasound(CH-EUS)in differentiating between pancreatic adenocarcinomas and other pancreatic ***:This retrospective cohort study evaluated90 patients who were seen between November 2010and May *** these patients had solid pancreatic masses that had a hypoechoic appearance on *** patients underwent CH-EUS to evaluate this diagnostic method’s *** mass lesions observed on CH-EUS were classified into three categories based on their echo intensity:hypoenhanced,isoenhanced,and hyperenhanced *** adjusted the sensitivity and the specificity of each category for detecting *** also estimated the accuracy of CH-EUS by comparing it to a pathological ***:Of the 90 patients,62 had a pancreatic ***-seven out of 62 pancreatic adenocarcinomas showed a hypoenhanced pattern on *** sensitivity was 92%,the specificity 68%and the accuracy approximately 82%.The area under the curve of the receiver operating characteristic analysis for CH-EUS was *** is a significant association between the hypoenhanced pattern on CH-EUS and pancreatic duct adenocarcinoma(χ2=35.264,P<0.001).In pathological examinations,the number of specimens for EUS-fine needle aspiration(EUS-FNA)was considered insufficient for diagnosis in three patients,and in two patients,the results were reported to be negative for *** masses in all five patients revealed a hypoenhanced pattern with *** patients were diagnosed with pancreatic adenocarcinoma based on the pathology results of a biopsy,and the remaining two patients were clinically diagnosed with ***:CH-EUS is useful for distinguishing between pancreatic adenocarcinoma and other pancreatic *** a pancreatic mass shows a hypoenhanced pattern on CH-EUS but involves either insufficient samples or negative results with EUS-FNA,clinicians might consider perfo

关键词： Pancreas neoplasm Endoscopic ultrasound SonoVue Contrast media Microbubbles

《吐蕃大事纪年》中关于地名“热达合”的认定

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攀登（藏文版） 2024年第1期 79-88页

作者：李加东知甘肃省法官学院

根据敦煌本《吐蕃大事纪年》记载,公元8世纪初吐蕃赞普指派多麦地区的臣属主持会盟,会盟地点为“热达合”,文献记载显示吐蕃在“热达合”前后四次主持召开过会盟,足以见“热达合”这一地点的重要性。虽然学术界对此有过一些探讨,但至今... 详细信息

根据敦煌本《吐蕃大事纪年》记载,公元8世纪初吐蕃赞普指派多麦地区的臣属主持会盟,会盟地点为“热达合”,文献记载显示吐蕃在“热达合”前后四次主持召开过会盟,足以见“热达合”这一地点的重要性。虽然学术界对此有过一些探讨,但至今仍未形成研究共识。为此,基于前人研究基础,结合实地调研和查阅相关藏文史籍,认为“热达合”一词系多麦地区“热西多”和“旦斗”的统称。其中,“热西多”为今青海省循化县清水镇区域范围,“旦斗”为今青海省化隆县金源乡丹斗寺区域。

关键词：《吐蕃大事纪年》 “热达合” 会盟地点

Approximate equivalence in von Neumann algebras

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Science China Mathematics 2005年第2期48卷 239-247页

作者： DING Huiru don Hadwin Department of Mathematics University of New HampshireDurhamNH03824USA Department of MathematicsUniversity of New HampshireDurhamNH03824USA

One formulation of D. Voiculescu's theorem on approximate unitary equivalence is that two unital representations π and ρ of a separable C*-algebra are approximately unitarily equivalent if and only if rank οπ = rank ορ. We study the analog when the ranges of π and ρ are contained in a von Neumann algebra R, the unitaries inducing the approximate equivalence must come from R, and 'rank' is replaced with 'R -rank' (defined as the Murray-von Neumann equivalence of the range projection).

关键词： approximate equivalence, R-rank.

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