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Towards engineering a portable platform for laparoscopic pre-training in virtual reality with haptic feedback

虚拟现实与智能硬件（中英文） 2024年第2期6卷 83-99页

作者： Hans-Georg ENKLER Wolfgang KUNERT Stefan PFEFFER Kai-Jonas BOCK Steffen AXT Jonas JOHANNINK christoph REICH Furtwangen University 78120 FurtwangenGermany University Hospital and Faculty of Medicine Tuebingen 72076 TuebingenGermany

Background Laparoscopic surgery is a surgical technique in which special instruments are inserted through small incision holes inside the *** some time,efforts have been made to improve surgical pre training through practical exercises on abstracted and reduced *** The authors strive for a portable,easy to use and cost-effective Virtual Reality-based(VR)laparoscopic pre-training platform and therefore address the question of how such a system has to be designed to achieve the quality of today's gold standard using real tissue *** VR controllers are limited regarding haptic *** haptic feedback is necessary or at least beneficial for laparoscopic surgery training,the platform to be developed consists of a newly designed prototype laparoscopic VR controller with haptic feedback,a commercially available head-mounted display,a VR environment for simulating a laparoscopic surgery,and a training *** To take full advantage of benefits such as repeatability and cost-effectiveness of VR-based training,the system shall not require a tissue sample for haptic *** is currently calculated and visually displayed to the user in the VR *** the prototype controller,a first axis was provided with perceptible feedback for test *** of the prototype VR controllers can be combined to simulate a typical both-handed use case,e.g.,laparoscopic suturing.A Unity based VR prototype allows the execution of simple standard *** The first prototype enables full operation of a virtual laparoscopic instrument in *** addition,the simulation can compute simple interaction *** challenges lie in a realistic real-time tissue simulation and calculation of forces for the haptic *** weaknesses were identified in the first hardware prototype,which will be improved in subsequent *** degrees of freedom of the controller are to be provided with haptic *** make forces t

关键词： Laparoscopic surgery Training Virtual reality Controller Haptic feedback Kinesthetic skills

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Prospective cohort study on facial profile changes in infants with Robin sequence and healthy controls

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World Journal of Pediatrics 2024年第6期20卷 581-589页

作者： Cornelia Wiechers Julian Sowula Karen Kreutzer christoph E.Schwarz Christina Weismann Michael Krimmel Christian F.Poets Bernd Koos Department of Neonatology Tuebingen University HospitalCalwerstrasse 772076 TuebingenGermany Center for Cleft Lip Palate and Craniofacial MalformationsTuebingen University HospitalTuebingenGermany Department of Orthodontics Tuebingen University HospitalTuebingenGermany Department of Oral and Maxillofacial Surgery Tuebingen University HospitalTuebingenGermany

Background Various conservative and surgical approaches exist to treat Robin sequence(RS),but their effects on facial profile and mandibular catch-up growth are unclear.A functional treatment concept,used in our centre for 25 years,includes an individualized palatal plate with a velo-pharyngeal extension and intensive feeding *** We performed a prospective study to objectively describe facial profiles in infants with RS treated with the above *** with isolated RS were admitted to our tertiary perinatal and national referral centre for craniofacial malformations between May 2018 and Nov *** with RS received 3D-photographs during clinically indicated *** controls were recruited from Dec 2018 to Sep 2019 and received 3D-photographs every 3 *** digitally measured jaw index(JI),defined as alveolar overjet(O)x maxillary arch(U)/mandibular arch(L),and the soft tissue reference points A’-point,Nasion’,B’-point angle(ANB’),describing the relative position of maxilla to mandible,were *** mixed models were used to examine time trajectories in JI and ANB’.Results A total of 2073D images,obtained in 19 infants with RS and 32 controls,were *** and ANB’decreased over time in both groups[for JI−0.18(95%CI−0.25 to−0.10);for ANB’:−0.40°per month[(95%CI−0.48 to−0.32)]]but remained lower in controls[for JI−2.5(95%CI−3.2 to−1.8);for ANB’-1.7°(95%CI−2.4 to−1.0)].Also,the ANB’model showed a significant effect of the interaction term diagnosis x *** Based on longitudinal 3D images,we describe changes in objective parameters of facial profile in infants with and without RS during the first year of *** findings indicate catch-up growth in infants treated for RS.

关键词： Infant Mandibular catch-up growth Pre-epiglottic Baton Plate Robin sequence Three-dimensional photography

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Optical probing of ultrafast laser-induced solid-to-overdense-plasma transitions

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Light(Science & Applications) 2024年第5期13卷 973-984页

作者： Yasmina Azamoum Georg Alexander Becker Sebastian Keppler Guillaume Duchateau Stefan Skupin Mickael Grech Fabrice Catoire Sebastian Hell Issa Tamer Marco Hornung Marco Hellwing Alexander Kessler Franck Schorcht Malte christoph Kaluza GSI Helmholtzzentrum für Schwerionenforschung Planckstr.164291 DarmstadtGermany. Helmholtz Institute Jena Fröbelstieg 307743 JenaGermany. Institute of Optics and Quantum Electronics Friedrich-SchillerUniversität JenaMax-Wien-Platz 107743 JenaGermany. CEA-CESTA 15 Avenue des SablièresCS6000133116 Le BarpCedexFrance Institut Lumière Matière UMR 5306-CNRSUniversitéde Lyon 169622 VilleurbanneFrance. LULI CNRSCEASorbonne UniversitéInstitut Polytechnique de ParisPalaiseauFrance. Universitéde Bordeaux-CNRS-CEA CELIAUMR 5107 TalenceFrance

Understanding the solid target dynamics resulting from the interaction with an ultrashort laser pulse is a challenging fundamental multi-physics problem involving atomic and solid-state physics,plasma physics,and laser *** of the initial interplay of the underlying processes is essential to many applications ranging from lowpower laser regimes like laser-induced ablation to high-power laser regimes like laser-driven ion *** the properties of the so-called pre-plasma formed as the laser pulse’s rising edge ionizes the target is complicated from the theoretical and experimental point of view,and many aspects of this laser-induced transition from solid to overdense plasma over picosecond timescales are still open *** the one hand,laser-driven ion acceleration requires precise control of the pre-plasma because the efficiency of the acceleration process crucially depends on the target properties at the arrival of the relativistic intensity peak of the *** the other hand,efficient laser ablation requires,for example,preventing the so-called“plasma shielding”.By capturing the dynamics of the initial stage of the interaction,we report on a detailed visualization of the pre-plasma formation and ***-thin diamond-like carbon foils are shown to transition from solid to plasma during the laser rising edge with intensities<10^(16)W/cm^(2).Single-shot near-infrared probe transmission measurements evidence sub-picosecond dynamics of an expanding plasma with densities above 10^(23)cm^(−3)(about 100 times the critical plasma density).The complementarity of a solid-state interaction model and kinetic plasma description provides deep insight into the interplay of initial ionization,collisions,and expansion.

关键词： laser acceleration solid

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Production of the X(4014)as the Spin-2 Partner of X(3872)in e^(+)e^(-)Collisions

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Chinese Physics Letters 2024年第3期41卷 30-36页

作者： Pan-Pan Shi Vadim Baru Feng-Kun Guo christoph Hanhart Alexey Nefediev CAS Key Laboratory of Theoretical Physics Institute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China Departamento de F′ısica Te′orica and IFIC Centro Mixto Universidad de Valencia-CSIC Institutos de Investigaci′on de PaternaAptdo.2208546071 ValenciaSpain Institut fur Theoretische Physik II Ruhr-Universitat BochumD-44780 BochumGermany Peng Huanwu Collaborative Center for Research and Education Beihang UniversityBeijing 100191China Institute for Advanced Simulation Institut fur Kernphysik and Julich Center for Hadron PhysicsForschungszentrum JulichD-52425 JulichGermany Jozef Stefan Institute Jamova 391000LjubljanaSlovenia CeFEMA Center of Physics and Engineering of Advanced MaterialsInstituto Superior T′ecnicoAvenida Rovisco Pais 11049-001 LisboaPortugal

In 2021,the Belle collaboration reported the first observation of a new structure in theψ(2S)γfinal state produced in the two-photon fusion *** the hadronic molecule picture,this new structure can be associatedwith the shallow isoscalar D*D* bound state and as such is an excellent candidate for the spin-2 partner of the X(3872)with the quantum numbers J^(PC)=2^(++)conventionally named X_(2).

关键词： process X(3872) Collisions

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银行的净息差和利率期限结构变化

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新金融 2024年第6期 27-33,55页

作者： christoph Memmel Lotta Heckmann-Draisbach 德意志银行

了解利率变化对银行净息差和各利益相关方的影响至关重要。人们通常主要关注利率水平的变化,然而,利率期限结构的变化也是一大驱动因素,会对银行的利息业务产生重大影响。本文模拟了利率变化对银行净息差的影响,基于利率水平变化和期限... 详细信息

了解利率变化对银行净息差和各利益相关方的影响至关重要。人们通常主要关注利率水平的变化,然而,利率期限结构的变化也是一大驱动因素,会对银行的利息业务产生重大影响。本文模拟了利率变化对银行净息差的影响,基于利率水平变化和期限结构变化,研究的简化模型可以复制不同银行业务模式的典型特征,简化模型得出的结果与德国中小型银行的定量调查结果基本一致。该模型可以较好地描述银行的利息业务,解释银行净息差的动态变化。本刊摘编此篇德意志银行的工作论文,以飨读者。

关键词：银行净息差利率期限结构利率水平变化债券组合模型

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IEC 61850用于数字化配电网若干问题的探讨

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供用电 2024年第5期41卷 2-9页

作者：徐丙垠陈羽赵义奎 christoph Brunner 山东理工大学智能电网研究中心山东淄博255049 山东科汇电力自动化股份有限公司山东淄博255087 IT4Power公司瑞士楚格6300

配电网中智能电子设备(intelligent electronic device,IED)同主站系统之间的互联互通与互操作是配电网实现数字化转型的基础,IEC 61850为数字化配电网的互联互通与互操作提供了信息模型和信息交换的标准解决方案。分析了传统电力远动... 详细信息

配电网中智能电子设备(intelligent electronic device,IED)同主站系统之间的互联互通与互操作是配电网实现数字化转型的基础,IEC 61850为数字化配电网的互联互通与互操作提供了信息模型和信息交换的标准解决方案。分析了传统电力远动通信协议存在的问题,探讨了数字化配电网采用IEC 61850的必要性与优势,介绍了IEC 61850用于配电网的信息模型、通信协议映射与配置方法,以及IEC 61850在国内外配电网的研究与技术推广情况。

关键词： IEC 61850 数字化配电网互联互通互操作信息模型映射方法配置

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Surgical approach affecting long-term urinary continence status after robot-assisted laparoscopic prostatectomy prospectively evaluated using self-reported functional status(Expanded Prostate Cancer Index Composite,EPIC-26)

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当代泌尿学（英文） 2024年第1期18卷 61-65页

作者： Mathias Reichert Ame Strauß Joost Wilhelm Voß Hans christoph von Knobloch Hannah Maria Neuenhofer Annemarie Uhlig Lutz Trojan Mirjam Naomi Mohr Department of Urology University Medical CenterGoettingenGermany Department of Pediatrics University HospitalBonnGermany

Purpose:The aim of the study was to examine the influence of the surgical approach for robot-assisted laparoscopic prostatectomy(RALP)on long-term urinary continence status in the era of self-reported functional status measures using the Expanded Prostate Can-cer Index Composite 26.Materials and methods:This is a prospective evaluation of 232 patients undergoing RALP between September,2019 and September,*** continence status and postoperative incontinence(pad usage)were evaluated 12 months after RALP using Expanded Prostate Cancer Index Composite 26 *** were categorized according to their surgical approach and outcome into the following groups:successful nerve sparing(NS),primarily without nerve sparing(***),and no nerve sparing by secondary resection(NNS by SR).The median levels of their questionnaire outcomes were evaluated and compared using the Wilcoxon rank sum test with continuity correction.Results:Urinary continence status 12 months after RALP differed significantly between the NS and ***(p=0.0071)and the NS and NNS by SR(p=0.0076)*** was no significant difference between the *** and NNS by SR(p=0.53)*** usage 12 months after RALP had no significant difference with regard to SR of the neurovascular bundle(p=0.14).Conclusions:Patient-reported outcomes of long-term urinary continence status seem to show no difference in postoperative conti-nence,regardless of whether a non-nerve-sparing result was planned or reached through ***,preservation of neurovascular bundle seems to lead to better long-term continence rates.

关键词： Expanded Prostate Cancer Index Composite 26 Nerve sparing Prostate cancer Robot-assisted radical prostatectomy Surgical approach Urinary incontinence

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从欧洲视角探究食物中天然毒素对健康的潜在长期风险

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粮油食品科技 2024年第4期32卷 1-15页

作者： Rudolf KRSKA christoph BUESCHL Mari ESKOLA Chris ELLIOTT 李冰杰(译) 维也纳自然资源与生命科学大学生物分析与农业代谢组学研究所农业生物技术系奥地利图尔恩3430 贝尔法斯特女王大学生物科学学院全球食品安全研究所英国北爱尔兰贝尔法斯特BT95DL Medifiles临床实验有限公司芬兰万塔01640 国家粮食和物资储备局科学研究院粮油质量安全研究所

食品中完全无毒素的理念往往更接近于一种理想化的幻想而非现实。为辨别并优先处理长期摄入食品累积的有害物质,特别是天然毒素带来的健康风险,我们开展了一项针对性研究。通过审查100多项主要由欧洲食品安全局(EFSA)开展的欧洲层面的... 详细信息

食品中完全无毒素的理念往往更接近于一种理想化的幻想而非现实。为辨别并优先处理长期摄入食品累积的有害物质,特别是天然毒素带来的健康风险,我们开展了一项针对性研究。通过审查100多项主要由欧洲食品安全局(EFSA)开展的欧洲层面的风险评估研究来评估食品供应的安全性。深入探讨了欧洲消费者长期接触的食品中潜在天然毒素对健康的影响,以及关于特定毒素的研究发现。此外,尝试对长期接触与公众健康有关的食品化学污染物所构成的风险进行排名。黄曲霉毒素被列为食品中第三大重要的化学污染物,因其具有很强的致癌能力,会导致人类患肝癌,加之欧洲谷物类食品消费量高,导致了高风险。虽然吡啶碱类物质具有基因毒性和致癌性,但由于人类接触这类植物毒素的来源有限——例如通过茶、蜂蜜或草药,它们在榜单中仅排第五。

关键词：欧洲视角天然毒素食品供应安全性风险评估

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Age and petrogenesis of the newly discovered Early Permian granite in the Kumtor gold field， Kyrgyz Tien-Shan

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Journal of Earth Science 2024年

作者： Kyiazbek Asilbekov Rustam Orozbaev Etienne Skrzypek christoph Hauzenberger Elena Ivleva Daniela Gallhofer Jian-Feng Gao Nikolay Pak Anatoliy Shevkunov Anatoliy Bashkirov Aizat Zhaanbaeva Institute of Geology， National Academy of Sciences of the Kyrgyz Republic Institute of Earth Sciences， University of Graz State Key Laboratory of Ore Deposit Geochemistry， Institute of Geochemistry， Chinese Academy of Sciences Kumtor Gold Company CJSC

Permian intrusions are widespread in the Middle and Southern Tien Shan， with fewer occurrences in the Northern Tien-Shan. Notably， many of these intrusions are spatially associated with a variety of ore deposits， indicating a significant link between magmatic activity and mineralization processes in these areas. We studied granite samples recently recovered from drilling in the Kumtor gold field to evaluate their potential relationships with gold mineralization. We report major and trace element geochemistry， zircon U-Pb age and Hf isotope data for this so-called Kumtor granite. The Kumtor granite is metaluminous to peraluminous and belongs to the high-K and calc-alkaline series with I-type geochemical characteristics. The relatively high K2O and Na2O concentrations and low high field strength elements （HFSE） and heavy rare earth elements （HREE）， the presence of biotite within these I-type granites， together with their low zircon saturation temperatures （731–779 °C）， suggest that they were likely derived from a hydrous source formed by dehydration melting of mica-bearing， medium- to high-K metabasaltic rocks. Our zircon U-Pb dating results indicate that the Kumtor granite intruded at 293 ± 1.7 Ma， which is consistent with the age range of other Middle Tien-Shan granitoids. The zircon Hf isotopic composition is εHf（t）= –7.56 to –5.05， indicating an ancient （1.39 to 1.52 Ga） crustal origin. Petrographical， geochemical and geochronological data indicate that the Kumtor granite is similar to leuco-granites of the Terekty complex. Our results indicate that the Kumtor granite was emplaced in the early Permian in a post-collision setting and may have temporal and genetic relationships with gold mineralization.

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Materials genome engineering accelerates the research and development of organic and perovskite photovoltaics

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Materials Genome Engineering Advances 2024年第1期2卷 38-63页

作者： Ying Shang Ziyu Xiong Kang An Jens A.Hauch christoph J.Brabec Ning Li Institute of Polymer Optoelectronic Materials and Devices State Key Laboratory of Luminescent Materials and Devices South China University of TechnologyGuangzhouChina Helmholtz-Institute Erlangen-Nürnberg(HI ERN) ErlangenGermany Institute of Materials for Electronics and Energy Technology(i-MEET) Friedrich-Alexander-UniversitätErlangen-NürnbergErlangenGermany Guangdong Basic Research Center of Excellence for Energy&Information Polymer Materials South China University of TechnologyGuangzhouChina

The emerging photovoltaic(PV)technologies,such as organic and perovskite PVs,have the characteristics of complex compositions and processing,resulting in a large multidimensional parameter space for the development and optimization of the *** manual methods are time-consuming and laborintensive in screening and optimizing material *** genome engineering(MGE)advances an innovative approach that combines efficient experimentation,big database and artificial intelligence(AI)algorithms to accelerate materials research and ***-throughput(HT)research platforms perform multidimensional experimental tasks rapidly,providing a large amount of reliable and consistent data for the creation of materials ***,the development of novel experimental methods combining HT and AI can accelerate materials design and application,which is beneficial for establishing material-processing-property relationships and overcoming bottlenecks in the development of emerging PV *** review introduces the key technologies involved in MGE and overviews the accelerating role of MGE in the field of organic and perovskite PVs.

关键词： artificial intelligence emerging photovoltaic technology high-throughput experiment materials genome engineering organic solar cells perovskite solar cells

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