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Management of Vulnating Esophageal Foreign Bodies in Burkina Faso

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International Journal of Otolaryngology and Head & Neck Surgery 2024年第2期13卷 135-148页

作者： Ibrahima Diallo Aboubacar gouéta Alseny Camara Assoumi Anatou Biga Mama Brigitte Ouoba Edi Emmanuel Martial Nao Moustapha Sérémé Bertin Priva Ouédraogo Yvette Marie Chantal gyébré Abdoulaye Keita Alpha Oumar Diallo ENT and HNS Department Yalgado Ouédraogo University Hospital Ouagadougou Burkina Faso ENT and HNS Department Bogodogo University Hospital Ouagadougou Burkina Faso ENT and HNS Department Tengandogo University Hospital Ouagadougou Burkina Faso ENT and HNS Department Conakry University Hospital Conakry Guinea

Introduction: Esophageal foreign bodies (EFB) are a diagnostic and therapeutic emergency because of the serious complications they can cause. Aim: This paper aimed to study the vulnating esophageal foreign bodies in the ENT and Head and Neck Surgery departments of the Yalgado Ouedraogo and Bogodogo University Hospital. Methodology: This was an analytic cross-sectional study with retrospective data collection over 10 years (2012-2021). Results: We collected 91 cases of vulnating esophageal foreign bodies, i.e. 9.1 cases/year (4.7%). The mean age of the patients was 14 ± 19 years. The sex ratio was 1.6. The circumstances of occurrence were dominated by accidental ingestion of vulnating esophageal foreign bodies (98.9%). The average time to consultation was 7.5 hours. Dysphagia was the dominant symptom (64.8%). Cervico-thoracic radiography found dual contour radiopaque images in 71.4%. Esophagoscopy with rigid tube was performed in 97.8%. The average time for extraction of the vulnating esophageal foreign bodies was 8 hours. Vulnerating esophageal foreign bodies were non-organic in 84.6%. The button cell represented 64.8%. Their location was cervical in 61.5% intraoperatively. The lesion assessment found ulcerative lesions in 42.9% (p Conclusion: Vulnating esophageal foreign bodies are relatively frequent in our ENT practice. Although their diagnosis is often easy, their treatment is still difficult and requires multidisciplinary management. Thus, for us, prevention remains the first effective weapon.

关键词： Foreign Bodies Esophagus Vulnerable Management Sequelae

Necrotizing Pneumonia and Conservative Treatment: A Case Report and Review of the Literature

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Open Journal of Respiratory Diseases 2024年第3期14卷 69-76页

作者： Pedro Rogerio Magalhães Braga Eduarda Kipper Beck Carolina de Mello Viera Cecília gatti Wolff Laura gazal Passos guilherme Bastos de Mello Luis Felipe Pilar gomes giacomo Farias Tramontin taíse Rosa de Carvalho Department of Internal Medicine Hospital So Lucas da PUCRS Porto Alegre Brazil School of Medicine Pontifcia Universidade Catlica do Rio Grande do Sul Porto Alegre Brazil Department of Radiology Hospital So Lucas da PUCRS Porto Alegre Brazil

We present a case of necrotizing pneumonia in an 87-year-old man without severe respiratory instability. Clinical suspicion arose due to the need for supplementary oxygen and persistent fever during treatment for community-acquired pneumonia. The diagnosis was confirmed by chest computed tomography. Although necrotizing pneumonia typically requires major surgical intervention upon diagnosis, we chose conservative management with antimicrobials and chest drainage alone. The patient experienced significant improvement and resolution of pneumonia with conservative management.

关键词： Respiratory Tract Infections Lung Disease Bacterial Pneumonia

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基于LTCC的3D异质集成低通滤波器

微波学报 2024年第4期40卷 69-73页

作者：曾竞涛沈斌徐金旭沓世我章秀银华南理工大学电子与信息学院广州510641 广东风华高新科技股份有限公司肇庆526060 新型电子元器件关键材料与工艺国家重点实验室肇庆526060

在射频应用中,低温共烧陶瓷(LTCC)技术是关键技术路线之一,然而使用单一介质的LTCC技术的性能很局限。为此,文中对基于LTCC的3D异质集成技术进行研究,通过调节流延配方、烧结速度、烧结温度、保温时间等工艺参数,设计异质匹配共烧的烧... 详细信息

在射频应用中,低温共烧陶瓷(LTCC)技术是关键技术路线之一,然而使用单一介质的LTCC技术的性能很局限。为此,文中对基于LTCC的3D异质集成技术进行研究,通过调节流延配方、烧结速度、烧结温度、保温时间等工艺参数,设计异质匹配共烧的烧结行为控制、界面相容性和组织性能调控方案,开发出稳定可靠的LTCC集成工艺,给出基于LTCC异质集成的器件仿真设计、3D集成制备方法,并制作了一款共烧界面结合完好、性能优越的LTCC异质集成低通滤波器进行验证。验证结果表明,该异质集成技术的瓷粉性能指标和可加工特性满足使用要求,预期能够得到广泛应用。

关键词：低温共烧陶瓷 3D异质集成低通滤波器

计算机信息管理技术在维护网络安全中的应用路径

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信息与电脑 2024年第16期36卷 66-68页

作者：塔丽杨思齐内蒙古交通职业技术学院内蒙古赤峰024000

随着互联网技术的迅速发展,网络安全问题愈发严重,计算机信息管理技术是保护网络安全的重要手段。本文探讨了计算机信息管理技术在维护网络安全中的有效路径,着重分析了数据加密、防火墙构建、身份认证等技术在维护网络安全中的应用方法... 详细信息

随着互联网技术的迅速发展,网络安全问题愈发严重,计算机信息管理技术是保护网络安全的重要手段。本文探讨了计算机信息管理技术在维护网络安全中的有效路径,着重分析了数据加密、防火墙构建、身份认证等技术在维护网络安全中的应用方法,为提高网络安全防护能力提供了理论支持和实践指导。

关键词：计算机信息管理技术网络安全数据加密防火墙身份认证

ＬＯＣＡＬＥＸＡＣＴＢＯＵＮＤＡＲＹＣＯＮＴＲＯＬＬＡＢＩＬＩＴＹＦＯＲＡＣＬＡＳＳＯＦＱＵＡＳＩＬＩＮＥＡＲＨＹＰＥＲＢＯＬＩＣＳＹＳＴＥＭＳ

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Chinese Annals of Mathematics,Series B 2002年第2期23卷 209-218页

作者：ＬＩＴＡ－ＴＳＩＥＮＲＡＯ ВＯＰＥＮＧＤｅｐａｒｔｍｅｎｔｏｆＭａｔｈｅｍａｔｉｃｓＦｕｄａｎＵｎｉｖｅｒｓｉｔｙＩｎｓｔｉｔｕｔｄｅＲｅｃｈｅｒｃｈｅＭａｔｈｅｍａｔｉｑｕｅＡｖａｎｃｅｅＳｈａｎｇｈａｉ２００４３３ＣｈｉｎａＥ－ｍａｉｌ:ｄｑｌｉ＠ｆｕｄａｎ．ｅｄｕ．ｃｎＵｎｉ

For a class of mixed initial-boundary value problem for general quasilinear hyperbolic systems, this paper establishes the local exact boundary controllability with boundary controls only acting on one end. As an application, the authors show the local exact boundary controllability for a kind of nonlinear vibrating string problem.

关键词： Exact boundary controllability Quasilinear hyperbolic system Nonlinear vibrating string equation

Bottomonium Spectrum with Screened Potential

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Communications in Theoretical Physics 2009年第10期52卷 653-661页

作者： LI Bai-Qing CHAO Kuang-ta Department of Physics and State Key Laboratory of Nuclear Physics and Technology Peking University Beijing 100871 China Department of Physics Huzhou Teachers College Huzhou 313000 China

As a sister work of[Phys. Rev. D 79 （2009） 094004], we incorporate the color-screening effect due to light quark pair creation into the heavy quark-antiquark potential, and investigate the effects of screened potential on the spectrum of bottomonimn. We calculate the masses, electromagnetic decays, and E1 transitions of bottomonium states. We find that the fine splittings between χbJ （J = 0, 1, 2） states are in good agreement with experimental data, and the E1 transition rates of γ（2S） → γχbJ（1P） and γ（3S） →γχbJ（2P）（J = 0, 1, 2） all agree with data within experimental errors. In particular, the mass of γ（6S） is lowered down to match that of the γ（11020）, which is smaller than the predictions of the linear potential models by more than 100 MeV. Comparison between charmonium and bottomonium in some related problems is also discussed.

关键词： color-screening effect Bottomonium

公共草场自主治理实现机制——基于SES框架的案例分析

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草地学报 2024年第4期32卷 1021-1033页

作者：乌日汗李平张苏日塔拉图钱政成王强中国农业科学院草原研究所内蒙古呼和浩特010010

随着牧区社会-生态系统破碎化问题的凸显,公共草场自主治理引起了学术界关注。然而,中国现行草地承包制度下,自主治理制度的可行性及其实现机制仍有待系统研究。本文连续三年跟踪调查了内蒙古一片公共草场,应用SES框架解构了案例地复杂... 详细信息

随着牧区社会-生态系统破碎化问题的凸显,公共草场自主治理引起了学术界关注。然而,中国现行草地承包制度下,自主治理制度的可行性及其实现机制仍有待系统研究。本文连续三年跟踪调查了内蒙古一片公共草场,应用SES框架解构了案例地复杂系统,并依据案例地情形构建了关联博弈模型,解析了公共草场自主治理制度下牧户互动机制。结果表明:草地资源的可持续利用关乎牧户长期生产成本。为了节约长期生产成本,牧区社区制定了公共草场自主治理制度。制度实施过程中,依据牧草长势和牲畜膘情形成了动态的草畜平衡规则,可操作的惩罚制度和地方政府弹性干预促进了自主治理制度的良好运作。同时,牧户之间的放牧博弈和社会交往博弈相互关联,使得自主治理制度以较低成本自我实施。该制度的有效实施有助于提高草地资源使用的公平性,也有利于牧户之间、牧户与地方政府之间信任的增长,提高生产互惠性和生产效率。因此,应探索建立自主治理和承包制度并存的多样化草地资源管理体系。

关键词：自主治理 SES框架关联博弈草地资源管理

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Blood Pressure and Heart Rate Measurements Using Photoplethysmography with Modified LRCN

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Computers, Materials & Continua 2022年第4期71卷 1973-1986页

作者： Chih-ta Yen Cheng-Hong Liao Department of Electrical Engineering Taiwan Ocean UniversityKeelung City202301Taiwan Department of Electrical Engineering National Formosa UniversityYunlin County632Taiwan

In this study,single-channel photoplethysmography(PPg)signals were used to estimate the heart rate(HR),diastolic blood pressure(DBP),and systolic blood pressure(SBP).A deep learning model was proposed using a long-term recurrent convolutional network(LRCN)modified from a deep learning algorithm,the convolutional neural network model of the modified inception deep learning module,and a long short-term memory network(LSTM)to improve the model’s accuracy of BP and HR *** PPg data of 1,551 patients were obtained from the University of California Irvine Machine Learning *** to design a filter of PPg signals and how to choose the loss functions for deep learning model were also discussed in the ***,the stability of the proposed model was tested using a 10-fold cross-validation,with an MAE±SD of 2.942±5.076 mmHg for SBP,1.747±3.042 mmHg for DBP,and 1.137±2.463 bpm for the *** with its existing counterparts,the model entailed less computational load and was more accurate in estimating SBP,DBP,and *** results established the validity of the model.

关键词： Photoplethysmography(PPg)signal deep learning blood pressure systolic blood pressure(SBP) diastolic blood pressure(DBP) heart rate(HR)

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基于光声谱分析的大鼠慢性前列腺炎评价

声学学报 2024年第3期49卷 424-430页

作者：王憧朱云开董琪李博艺封婷李颖陈亚青他得安复旦大学信息科学与工程学院生物医学工程系上海200438 上海交通大学医学院附属新华医院上海200092 复旦大学工程与应用技术研究院生物医学工程技术研究所上海200433

探究了使用光声谱参数评价慢性前列腺炎的可行性。通过对大鼠注射弗氏完全佐剂构建大鼠慢性前列腺炎症模型,使用光声显微仪器扫描前列腺组织切片获取原始光声信号。计算信号的功率谱参数(斜率、截距、平均谱功率和频谱质心偏移量),对获... 详细信息

探究了使用光声谱参数评价慢性前列腺炎的可行性。通过对大鼠注射弗氏完全佐剂构建大鼠慢性前列腺炎症模型,使用光声显微仪器扫描前列腺组织切片获取原始光声信号。计算信号的功率谱参数(斜率、截距、平均谱功率和频谱质心偏移量),对获得的谱参数进行了分析统计和参数成像,并讨论了不同频带的选择对评价结果的影响。实验结果表明,炎症组织与正常组织谱参数的统计结果和成像结果均存在显著性差异,使用频谱质心偏移量(SCS)成像可以区分炎症组织和正常组织,且在带宽固定的情况下,斜率参数和平均谱功率参数分别在高频谱段和低频谱段成像结果清晰,不同频带对截距参数成像的影响较小。

关键词：光声显微光声谱分析前列腺炎组织表征