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Pancreatic Castleman disease treated with laparoscopic distal pancreatectomy

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Hepatobiliary & Pancreatic Diseases International 2013年第3期12卷 332-334页

作者： Filip ecka Alexander Ferko Bohumil Jon Zdeněk ubrt Petra Kaparová rudolf Repák Department of Surgery Faculty of Medicine and University Hospital Hradec Králové Department of Field Surgery Military Health Science Faculty Hradec Králové Defence University Brno Fingerland Department of Pathology Faculty of Medicine and University Hospital Hradec Králové Second Department of Internal Medicine Faculty of Medicine and University Hospital Hradec Králové

BACKGROUND: Castleman disease is an uncommon lympho-proliferative disorder most frequently occurring in the mediastinum. Abdominal forms are less frequent, with pancreatic localization of the disease in particular being extremely rare. Only seventeen cases have been described in the world literature. METHOD: This report describes an interesting and unusual case of pancreatic Castleman disease treated with laparoscopic resection. RESULTS: A 48-year-old woman presented with epigastric pain. CT scan showed a well-encapsulated mass on the ventral border of the pancreas. Endosonography with fine needle aspiration biopsy was performed. Biopsy showed lymphoid elements and structures of a normal lymph node. The patient was treated with laparoscopic distal pancreatectomy. The pancreas was transected with a Ligasure device and the pancreatic stump was secured with a manual suture. One year after surgery the patient was complaint-free and showed no signs of recurrence of the disease. CONCLUSIONS: Laparoscopic distal pancreatectomy is a feasible and safe method for the treatment of lesions in the body and tail of the pancreas. Transection of the pancreas with a Ligasure device offers the advantages of low bleeding and low risk of pancreatic fistula.

关键词： Castleman disease pancreas laparoscopic distal pancreatectomy Ligasure

Deeper Chemical Perceptions for Better Traditional Chinese Medicine Standards

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Engineering 2019年第1期5卷 83-97页

作者： Jin-Jun Hou Jian-Qing Zhang Chang-Liang Yao rudolf Bauer Ikhlas A. Khan Wan-Ying Wu De-an Guo Shanghai Research Center for Modernization of Traditional Chinese Medicine National Engineering Laboratory for TCM Standardization Technology Shanghai Institute of Materia Medica Chinese Academy of Sciences Shanghai 201203 China Department of Pharmacognosy Institute of Pharmaceutical Sciences Karl-Franzens-Universitat Graz Graz A-8010 Austria National Center for Natural Products Research School of Pharmacy The University of Mississippi University MS 38677 USA

Traditional Chinese medicines (TCMs), a complex system of natural resources with many diverse components, are widely used as approved medicinal agents in China. Quality control of TCMs is a huge challenge for the government and for testing institutes and is associated with numerous scientific issues. Among these considerations include the following questions: How many components are in TCMs? How can the multiple components in TCMs be comprehensively delineated and subsequently characterized? What is the level and range of these (active) metabolites within these multiple-component TCMs, in order to recommend standards? and What are the qualities required for a marker constituent to be selected, and from a practical perspective, how can these components be assessed with low cost and in a short time? All of these factors require significant and deep thinking in order to understand the individualistic chemistry of TCM in order to develop enhanced TCM quality standards for improved and consistent patient care. In this review, the latest exploratory research in TCM chemistry analytical techniques and methods is summarized in order to begin to develop responses to these scientific issues. Advances in these methods have included multidimensional separation for liquid chromatography–high-resolution mass spectrometry (LC–HRMS), smart triggering data-dependent acquisition of LC–HRMS, target analysis with liquid chromatography–mass spectrometry (LC–MS), supercritical fluid chromatography, and data mining of large mass spectrometry (MS) datasets. In addition, two quality strategies have been introduced in order to save reference standards and the analysis time for a TCM quality standard, including the application of the single standard to determine multi-components (SSDMC) and monomethodheterotrait matrix methods. Finally, a series of future improvements for analytical methods for TCMs are proposed.

关键词： Traditional Chinese medicine Liquid chromatography Mass spectrometry Data-dependent acquisition Chemometrics Untargeted Data mining Quality control

Sensitivity analysis of parameters and contrasting performance of ground filtering algorithms with UAV photogrammetry-based and LiDAR point clouds

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International Journal of Digital Earth 2020年第12期13卷 1672-1694页

作者： Petr Klápště Michal Fogl Vojtěch Barták Kateřina Gdulová rudolf Urban Vítězslav Moudrý Department of Applied Geoinformatics and Spatial Planning Faculty of Environmental SciencesCzech University of Life Sciences PragueKamýcká129Praha-Suchdol16500Czech Republic Department of Special Geodesy Faculty of Civil EngineeringCzech Technical University in PraguePragueCzech Republic

Most ground filtering algorithms are primarily designed for airborne LiDAR point cloud processing and their successful use in identifying ground points from photogrammetric point clouds remains *** compared six ground filtering algorithms implemented in Metashape,ArcGIS,CloudCompare,LAStools,and *** used UAV photogrammetry-based(acquired under leaf-off conditions)and airborne LiDAR(leaf-on)point clouds of the same area to:(i)compare accuracy of generated DTMs;(ii)evaluate the effect of vegetation density and terrain slope on filtering accuracy;and(iii)assess which algorithm parameters have the greatest effect on the filtering *** results show that the performance of filtering algorithms was affected by the point cloud type,terrain slope and vegetation *** results were generally better for LiDAR(RMSE 0.13–0.19 m)than for photogrammetric(RMSE 0.19–0.23 m)point *** behavior in varying vegetation and terrain conditions was consistent for LiDAR point ***,when applied on photogrammetric point clouds,the algorithms’behavior was inconsistent,especially in areas of steep slope(except for the Progressive Triangulated Irregular Network in LAStools).Parameters related to the selection of the initial minimum elevation ground points were the most influential in all algorithms and point clouds.

关键词： DTM filtering LiDAR point cloud spoil heap UAV

Observation of magnetic domain evolution in constrained epitaxial Ni–Mn–Ga thin films on MgO(0 0 1) substrate

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Journal of Materials Science & Technology 2022年第7期102卷 56-65页

作者： Bo Yang Ivan Soldatov Fenghua Chen Yudong Zhang Zongbin Li Haile Yan rudolf Schäfer Dunhui Wang Claude Esling Xiang Zhao Liang Zuo Key Laboratory for Anisotropy and Texture of Materials(Ministry of Education) School of Material Science and EngineeringNortheastern UniversityShenyang 110819China Institute for Metallic Materials Leibniz Institute for Solid State and Materials Research(IFW)DresdenHelmholtzstrasse 2001069 DresdenGermany Institute of Natural Sciences Ural Federal University620002 EkaterinburgRussia Department of Physics School of Applied ScienceTaiyuan University of Science and TechnologyTaiyuan 030024China Laboratoire d’Étude des Microstructures et de Mécanique des Matériaux(LEM3) CNRS UMR 7239Universitéde Lorraine57045 MetzFrance Institute for Materials Science Dresden University of Technology01062 DresdenGermany National Laboratory of Solid State Microstructures and Jiangsu Key Laboratory for Nanotechnology and Collaborative Innovation Center of Advanced Microstructures Nanjing UniversityNanjing 210093China

Epitaxial Ni–Mn–Ga thin films have promising application potential in micro-electro-mechanical sensing and actuation systems. To date, large abrupt magnetization changes have been observed in some epitaxial Ni–Mn–Ga thin films, but their origin-either from magnetically induced martensite variant reorientation(MIR) or magnetic domain evolution-has been discussed controversially. In the present work, we investigated the evolutions of the magnetic domain and microstructure of a typical epitaxial Ni–Mn–Ga thin film through wide-field magneto-optical Kerr-microscopy. It is demonstrated that the abrupt magnetization changes in the hysteresis loops should be attributed to the magnetic domain evolution instead of the MIR.

关键词： Ni–Mn–Ga thin films Magnetic field-induced variant reorientation Magnetic domains Magnetization process Magneto-optical Kerr microscopy

Long-term Integration Ability of the Submillimeter Wave Astronomy Satellite(SWAS)Spectral Line Receivers

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Research in Astronomy and Astrophysics 2024年第6期24卷 315-322页

作者： Bing-Ru Wang Di Li Paul F.Goldsmith Jingwen Wu Chao-Wei Tsai rudolf Schieder Gary J.Melnick National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Research Center for Astronomical Computing Zhejiang LaboratoryHangzhou 311100China Jet Propulsion Laboratory California Institute of TechnologyPasadenaCA 91109USA Institute for Frontiers in Astronomy and Astrophysics Beijing Normal UniversityBeijing 102206China KOSMA I.Physik.InstitutUniversität zu KölnZülpicher Str.7750937 KölnGermany Center for Astrophysics|Harvard&Smithsonian 60 Garden StreetMS 66CambridgeMA 02138USA

The Submillimeter Wave Astronomy Satellite(SWAS)was the first space telescope capable of high spectral resolution observations of terahertz spectral *** have investigated the integration ability of its two receivers and spectrometer during five and a half years of on-orbit *** CI,O_(2),H_(2)O,and^(13)CO spectra taken toward all observed Galactic sources were *** present results are based on spectra with a total integration time of up to 2.72×10~4hr(■10~8s).The noise in the spectra is generally consistent with that expected from the radiometer equation,without any sign of approaching a noise *** noise performance reflects the extremely stable performance of the passively cooled front end as well as other relevant components in the SWAS instrument throughout its mission lifetime.

关键词： telescopes space vehicles:instruments instrumentation:miscellaneous ISM:lines and bands

Towards Real-World Applications of Online Learning Spiral Recurrent Neural Networks

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Journal of Intelligent Learning Systems and Applications 2009年第1期1卷 1-27页

作者： rudolf SOLLACHER Huaien GAO 不详

Distributed intelligent systems like self-organizing wireless sensor and actuator networks are supposed to work mostly autonomous even under changing environmental conditions. This requires robust and efficient self-learning capabilities implementable on embedded systems with limited memory and computational power. We present a new solution called Spiral Recurrent Neural Networks (SpiralRNN) with an online learning based on an extended Kalman filter and gradients as in Real Time Recurrent Learning. We illustrate its stability and performance using artificial and real-life time series and compare its prediction performance to other approaches. SpiralRNNs perform very stable and show an ac-curacy which is superior or similar to other state-of-the-art approaches. In a memory capacity evaluation the number of simultaneously memorized and accurately retrievable trajectories of fixed length was counted. This capacity turned out to be a linear function of the size of the recurrent hidden layer, with a memory-to-size ratio of 0.64 for shorter trajectories and 0.31 for longer trajectories. Finally, we describe two potential applications in building automation and logistics and report on an implementation of online learning SpiralRNN on a wireless sensor platform under the TinyOS embedded operating system.

关键词： recurrent neural network online learning prediction sensor actuator network

Accumulation Characteristics of Some Elements in the Moss Polytrichum commune(Bryophytes)Based on XRF Spectrometry

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Journal of Environmental Protection 2013年第6期4卷 522-528页

作者： rudolf Soltes Eva Greguskova Institute of High Mountains Biology University of ZilinaTatranska JavorinaSlovakia

Bryophytes are broadly used as bioindicators. However, the internal distribution of accumulated elements in the moss tissue is little known. Sampling was carried out in The West Carpathians, Slovakia, in autumn 2012. Seven replicates have been used. The samples were analyzed by XRF Spectrometer Delta Classic. S, Pb, K, Ca, Cr, Mn, Fe, Cu, Rb, Sr, Mo, Ba and Zn were determined. For ordination analysis we used principal component analysis, statistical graphics system STATISTICA have been used for the correlation analysis and for analysis of variance. Results show that sulphur, zinc, chromium, manganese, molybdenum, kalcium and copper are preferentially accumulated in the capsula. While lead favors gametophyte, potassium and strontium prefer accumulation in sporophyte. Iron significantly accumulates in the more-year segments, while zinc in the stems. Copper, chromium and sulphur are accumulated preferentially in The Fatra Mts.

关键词： Bioindication Polytrichum commune The West Carpathians Elemental Accumulation XRF Spectrometry

FORGING STRONGER INDONESIA-CHINA PEOPLE-TO-PEOPLE TIES

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China Report ASEAN 2023年第7期8卷 56-57页

作者： Paulus rudolf Yuniarto the Indonesia National Research and Innovation Agency

Traditionally,relationships between countries have always been seen from the perspective of international *** perspective is now seen as too narrow and elitist because relationships between countries are no longer lim... 详细信息

关键词： see narrow always

Predictive value of retinal function by the Purkinje test in patients scheduled for cataract surgery in Kinshasa, DR Congo

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International Journal of Ophthalmology(English edition) 2021年第9期14卷 1392-1395页

作者： Serge Dinkulu Ngoy Janvier Kilangalanga Edith Mukwanseke Longo Flavien Lutete Adrian Hopkins rudolf Friedrich Guthoff Thomas Stahnke Eye Department Saint Joseph HospitalKinshasa P.O.322DR Congo Programme National de Sante Oculaire et Vision(PNSOV) Kinshasa P.O.322DR Congo Department of Ophthalmology Rostock University Medical CenterRostock 18057Germany

AIM:To assess the retinal function in patients with dense cataracts in resource poor settings in Kinshasa,DR ***:In a tertiary eye care center,the Purkinje entoptic test was performed as part of the ophthalmological examination in 98 eyes in patients with cataract,using a *** 92 cataract patients including 86 patients suffered from unilateral and 6 from bilateral cataracts were included in the *** investigator asked the patients about their perception of the vascular pattern most commonly described as a leafless or dead *** acuity≥6/60 was considered an indication of good visual function and visual acuity<6/60 of poor *** small incision cataract surgery,best corrected visual acuity(BCVA)was determined and compared with the preoperative ***:Out of 98 eyes,there were 80(81.6%)where the Purkinje entoptic phenomenon was reported by the *** cataract surgery,out of the 80 eyes,there were 75(93.8%)with a BCVA of better than 6/60,whereas in 5 eyes(6.2%),BCVA was 6/60 or *** of the 18 eyes(18.4%)where no Purkinje tree was recognized,there were 14(77.8%)with BCVA of better than 6/60,whereas in 4(22.2%)BCVA was 6/60 or ***:The Purkinje entoptic test is successfully used for preoperative assessment of retinal function inpatients with dense ***,further investigation and refinement of the test is necessary to validate the method for use in sub-Saharan conditions.

关键词： Purkinje test entoptic phenomena cataract retinal function sub-Saharan Africa