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Diagnostic challenges in non-cirrhotic portal hypertension-porto sinusoidal vascular disease

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World Journal of Gastroenterology 2020年第22期26卷 3000-3011页

作者： Oana Nicoara-Farcau Ioana Rusu Horia Stefanescu Marcel Tanțau Radu Ion Badea bogdan Procopet University of Medicine and Pharmacy“Iuliu Hatieganu” Cluj-Napoca 400000Romania Gastroenterology Department Regional Institute of Gastroenterology and Hepatology“O.Fodor”Cluj-Napoca 400000Romania Pathology Department Regional Institute of Gastroenterology and Hepatology“O.Fodor”Cluj-Napoca 400000Romania Imagistic Department Regional Institute of Gastroenterology and Hepatology“O.Fodor”Cluj-Napoca 400000Romania

Non-cirrhotic portal hypertension consists of a group of diseases characterized by signs and complications of portal hypertension,which differ from cirrhosis through histological alterations,hemodynamic characterization and,clinical *** of the similarities in clinical presentation and imaging signs,frequently these patients,and particularly those with porto-sinusoidal vascular disease(PSVD),are misdiagnosed as having liver cirrhosis and thus raising difficulties in their *** most challenging differentiation to be considered is between PSVD and cirrhosis and,although not pathognomonic,liver biopsy is still the standard of *** they still require extended validation before being broadly used,new non-invasive methods for the diagnosis of porto-sinusoidal vascular disease,like transient elastography,contrast-enhanced ultrasound or metabolomic profiling,have shown promising *** issue is the differentiation between PSVD and chronic extrahepatic portal vein obstruction,especially now when it is known that 40%of patients suffering from PSVD develop portal vein *** this particular case,once the portal vein thrombosis occurred,the diagnosis of PSVD is impossible according to the current ***,so far,the differentiation between PSVD and sinusoidal obstruction syndrome has not been clear so far in particular *** this review we highlighted the diagnostic challenges regarding the PSVD,as well as the current techniques used in the evaluation of these patients.

关键词： Porto-sinusoidal vascular disease Extrahepatic portal vein obstruction Noncirrhotic portal hypertension Non-invasive diagnosis Idiopathic portal hypertension Cirrhosis

Deep Learning-Based Model for Detection of Brinjal Weed in the Era of Precision Agriculture

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Computers, Materials & Continua 2023年第10期77卷 1281-1301页

作者： Jigna Patel Anand Ruparelia Sudeep Tanwar Fayez Alqahtani Amr Tolba Ravi Sharma Maria Simona Raboaca bogdan Constantin Neagu Department of Computer Science and Engineering Institute of TechnologyNirma UniversityAhmedabad382481India Software Engineering Department College of Computer and Information SciencesKing Saud UniversityRiyadh12372Saudi Arabia Computer Science Department Community CollegeKing Saud UniversityRiyadh11437Saudi Arabia Centre for Inter-Disciplinary Research and Innovation University of Petroleum and Energy StudiesDehradun248001India Doctoral School University Politehnica of BucharestBucharest060042Romania National Research and Development Institute for Cryogenic and Isotopic Technologies-ICSI Rm ValceaRamnicu Valcea240050Romania Power Engineering Department Gheorghe Asachi Technical University of IasiIasi700050Romania

The overgrowth of weeds growing along with the primary crop in the fields reduces crop *** solutions like hand weeding are labor-intensive,costly,and time-consuming;farmers have used *** application of herbicide is effective but causes environmental and health ***,Precision Agriculture(PA)suggests the variable spraying of herbicides so that herbicide chemicals do not affect the primary *** by the gap above,we proposed a Deep Learning(DL)based model for detecting Eggplant(Brinjal)weed in this *** key objective of this study is to detect plant and non-plant(weed)parts from crop *** the help of object detection,the precise location of weeds from images can be *** dataset is collected manually from a private farm in Gandhinagar,Gujarat,*** combined approach of classification and object detection is applied in the proposed *** Convolutional Neural Network(CNN)model is used to classify weed and non-weed images;further DL models are applied for object *** have compared DL models based on accuracy,memory usage,and Intersection over Union(IoU).ResNet-18,YOLOv3,CenterNet,and Faster RCNN are used in the proposed *** outperforms all other models in terms of accuracy,i.e.,88%.Compared to other models,YOLOv3 is the least memory-intensive,utilizing 4.78 GB to evaluate the data.

关键词： Precision Agriculture Deep Learning brinjal weed detection ResNet-18 YOLOv3 CenterNet Faster RCNN

New Genera of Foraminifera Identified for the Upper Badenian Deposits to the North-Eastern Part of the Moldavian Platform

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Journal of Earth Science and Engineering 2017年第1期7卷 20-27页

作者： bogdan-Adrian Ispas Department of Geology Faculty of Geography and Geology "Alexandru loan Cuza" University of lasi lasi 700505 Romania

In the North-East of the Moldavian Platform, the upper Badenian is composed of three lithologic units, on top of which there is Limestones and Marls with Lithothamnium Formation. At the level of this formation, the geological research conducted in four localities near the Prut Valley demonstrated, based on two new foraminifera genera identified in this area--Oolina and Velapertina-favorable conditions for the development of the stenohaline fauna, a marine shelf environment with warm water, as well as the certitude regarding the age of the late Badenian for these. These results were not previously reported in this area.

关键词： Foraminifera Moldavian Platform upper Badenian biostratigraphy paleoecology.

Pulmonary complications of portal hypertension:The overlooked decompensation

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World Journal of Clinical Cases 2022年第17期10卷 5531-5540页

作者： Rares Craciun Tudor Mocan bogdan Procopet Andrada Nemes Cristian Tefas Mihaela Sparchez Lavinia-Patricia Mocan Zeno Sparchez 3^(rd)Medical Clinic Department of Internal Medicine"Iuliu Hatieganu"University of Medicine and PharmacyCluj-Napoca 400162Romania Gastroenterology Clinic "Prof.Dr.O.Fodor"Regional Institute of Gastroenterology and HepatologyCluj-Napoca 400162Romania Intensiv Care Unit I Cluj County Emergency HosptialCluj-Napoca 400006Romania 2^(nd)Paediatric Clinic "Iuliu Hatieganu"University of Medicine and PharmacyCluj-Napoca 400126Please enter the state or provinceRomania Department of Histology "Iuliu Hatieganu"University of Medicine and PharmacyCluj-Napoca 400349Romania

The systemic nature of cirrhosis and portal hypertension has long been recognized,and the amount of data characterizing the interplay between each system is becoming ever so *** involvement was among the first described associated entities in cirrhosis,with reports dating back to the late nineteenth ***,it appears that throughout the years,interest in the pulmonary complications of portal hypertension has generally faded,especially in contrast to other decompensating events,as expertise in this field has primarily been concentrated in highly experienced tertiary care facilities and liver transplantation *** affecting up to 10%-15%of patients with advanced liver disease and having a proven prognostic impact,hepato-pulmonary syndrome,porto-pulmonary hypertension,and hepatic hydrothorax are frequently misdiagnosed,mistreated,or *** lack of precision might adversely impact patient care,referral to expert centers,and,ultimately,liver disease-related mortality and successful transplantation *** present minireview aims to increase awareness of the pulmonary complications of chronic liver disease by providing a brief overview of each of the three *** paper focuses on the essential theoretical aspects,addressing the most critical knowledge gaps on the one hand and,on the other hand,critically discussing one key issue for each complication.

关键词： Hepato-pulmonary syndrome Porto-pulmonary hypertension Hepatic hydrothorax Cirrhosis Portal hypertension Advanced liver disease

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空气耦合超声换能器的频域声场研究

机械工程学报 2019年第10期55卷 10-16页

作者：李骥李力邓勇刚 PIWAKOWSKI bogdan 陈法法水电机械设备设计与维护湖北省重点实验室(三峡大学) 宜昌443002 里尔中央理工电子、微电子与纳米技术研究所(法国国家科学研究中心) 法国里尔59651 中国石油川庆钻探工程有限公司安全环保质量监督检测研究院广汉618300

考虑介质的衰减及其引起的频散对频域声场的影响,提出幂函数衰减介质中圆形换能器声场的解析公式。基于该公式研究空气耦合超声换能器的轴向声压与径向声压分布特征。结果表明:空气中的衰减是引起声场变化的主要因素;相对于零衰减介质,... 详细信息

考虑介质的衰减及其引起的频散对频域声场的影响,提出幂函数衰减介质中圆形换能器声场的解析公式。基于该公式研究空气耦合超声换能器的轴向声压与径向声压分布特征。结果表明:空气中的衰减是引起声场变化的主要因素;相对于零衰减介质,空气中的声压幅度随着传播距离的增加而明显降低,近场长度明显减小,近场内轴向声压的零点、极大值点无偏移,径向声压分布和声束扩散角无变化。研究结果对于空气耦合换能器的设计、空气耦合声场的测量、校准具有重要参考价值,并可以作为ASTM E1065/E1065-14和IEC 62127标准的补充。

关键词：空气耦合超声幂函数衰减频域声场轴向声压径向声压

High-Performance AC-DC Power Electronic Converter Generator for Hybrid-Solar Vehicles

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Journal of Energy and Power Engineering 2015年第7期9卷 648-659页

作者： Jozef Tutaj bogdan Fijalkowski Department of Mechanical Engineering Mechatronics Institution Institute for Automotive Vehicles and Combustion Engines Cracow University of Technology Krakow PL 31-864 Poland Mechatronics Institution Institute of Technology State Higher Vocational School in Nova Sandec Nowy Sacz PL 33-300 Poland

This paper describes the principles of operation and the physical model of an advanced AC-DC converter generator （with the electronic converter acting as an AC-DC rectifier with reverse-conducting MOSFETs （metal-oxide semiconductor field-effect transistors） as fast-electronic switches with a relatively low ON-state voltage drop） for HSVs. An AC-DC converter, when seen as an AC-DC rectifier, can be used in many fields, e.g., for multi-functional AC-DC/DC-AC convener generator^starter and conventional DC-AC convener motors and AC-DC converter generators or generator sets, welding machines, etc. The paper also describes a novel AC-DC convener, with reverse-conducting transistors and without the use of optoelectronic separation （which does not require a separate power supply）, which may be easily realized in IC （integrated-circuit） technology. Computer simulation allows for waveform evaluation for timing analysis of all components of the AC-DC-converter＇s physical model, both during normal operation as well as in some states of emergency. The paper also presents the results of bench experimental studies where the MOSFETs were used as fast-electronic switches with a relatively low ON-state voltage drop. For experimental studies, a novel AC-DC converter has been put together on the Mitsubishi FM600TU-3A module. The AC-DC converter with reverse-conducting transistors in a double-way connection has a lot of advantages compared to the conventional AC-DC convener acting as a diode rectifier, such as higher energy efficiency and greater reliability resulting from the lower temperature of electronic switches.

关键词： HSV (hybrid-solar vehicles) electronic switches electronic converter power losses

Primary rhabdomyosarcoma: An extremely rare and aggressive variant of male breast cancer

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World Journal of Clinical Cases 2020年第19期8卷 4466-4474页

作者： Catalin bogdan Satala Ioan Jung Tivadar Jr Bara Patricia Simu Iunius Simu Madalina Vlad Rita Szodorai Simona Gurzu Department of Pathology Clinical County Emergency HospitalTirgu Mures 540139Romania Department of Pathology George Emil Palade University of MedicinePharmacySciences and TechnologyTargu Mures 530149Romania Department of Surgery Clinical County Emergency HospitalTargu Mures 540136Romania Department of Radiology George Emil Palade University of MedicinePharmacySciences and TechnologyTargu Mures 530149Romania Department of Pathology Clinical County Emergency HospitalTargu Mures 540136Romania Department of Pathology George Emil Palade University of MedicinePharmacyScience and TechnologyTargu Mures 530149Romania Research Center(CCAMF) University of MedicinePharmacySciences and TechnologyTargu Mures 540139Romania

BACKGROUND Rhabdomyosarcoma(RMS)of the breast,a mesenchymal neoplasm with skeletal muscle differentiation,is an extremely rare tumour in males,with less than 30 cases published in English-language *** report on the first case of a male breast RMS,with an unusual ectomesenchymal/neuroectodermal *** SUMMARY A 55-year-old,previously healthy male,underwent a radical left mastectomy for an ulcerated tumour mass,occupying the breast and left anterior thoracic *** biopsy specimen indicated the presence of a tumour with neural origins,namely a peripheral neuroectodermal tumour(PNET).The surgical specimens identified two *** rhabdomyosarcomatous component(over 70%)was represented by large pleomorphic cells with positivity for desmin,sarcomeric actin and *** PNET-like ectomesenchymal component,which was admixed with the RMS cells,and was also revealed during the preoperative biopsy,consisted of small cells which expressed neurofilament,neuron specific enolase and *** microscopic examination,along with the immunohistochemical profile,allowed the diagnosis of an RMS,with unusual ectomesenchymal *** patient refused the postoperative oncologic therapy and died three months after *** In patients with RMS of the breast,the PNET-like ectomesenchymal component increases the diagnosis difficulty,especially in biopsy *** differentiation can be immunohistochemically proven and might highlight the possible development of high-grade sarcoma of the breast from remnants of the embryological ectodermal layer.

关键词： Mammary gland Rhabdomyosarcoma Ectomesenchymoma Male Case report CD99

Serpentine Design on Forest Roads by the Internal Circular Curve Method： A Case Study in Serbia

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Journal of Life Sciences 2016年第1期10卷 39-47页

作者： bogdan Z. Stefanovic Department of Forestry Faculty of Forestry University of Belgrade 1 Kneza Viseslava St. Belgrade 11030 Serbia Department of Forest Roads SE "Serbia forests " 113 Mihajla Pupina Bvd New Belgrade 11070 Serbia

The paper provides an overview of geometric solutions of marking all types of serpentine by the method of internal circular curve in designing forest roads directly in the field. The main objective of presenting this original method for marking all serpentine types in one place is to show similarities and differences in marking different types of serpentine, and identify opportunities for further research of this type. The method is based on the establishment of the minimum number of elements necessary to mark the serpentine on the forest roads and other budget elements and their design in the field. By using this method, construction errors or the number of attempts of serpentine marking are reduced, which increases the effects of design compared to the ones reached by the previous method of marking the serpentine on forest roads.

关键词： Forest roads symmetric serpentine asymmetric serpentine full serpentine half serpentine internal circular curvemethod Serbia.

American, Asian and European Scientists and Practitioners View on ICT Project Managers Soft Skills

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Journal of Modern Accounting and Auditing 2011年第6期7卷 601-614页

作者： Lent bogdan Pinkowska Malgorzata University of Technology and Life Sciences Poland Kasetsart University Thailand

USA as an ICT （Information and Communication Technology） innovative leader, Europe with its knowledge offensive and Asia as the fastest growing economies share the common fate： ICT projects do under perform. Numerous surveys point at human factor as a source of this malheur. The question emerge to what extent project manager is responsible for improvements there, and which particular skills are demanded to turn the ICT projects course towards more predictable, more efficient and better budget able endeavours. Authors examined and compared the scientific and practitioners views. Twenty-nine journal and conference papers and 46 monographs and standards dedicated to project manager skills have been scrutinized. Further 324 jobs advertisements for the ICT project managers in USA, Switzerland, Poland and Thailand underwent an analysis related to the demanded soft skills of the project manager. The L-Timer~ taxonomy of human factor related processes in project management is applied as comparison vehicle. Methodology extracted main （global） terms and detailed aspects, both weighted appropriately. The practitioners on all continents expect primarily communication skills followed by the team management abilities. Human resource is partially treated, while conflict management is underrepresented. The science seems to be focused on leadership followed by the communication skills, neglecting self management skills of project managers. The last are surprisingly well represented in the US advertisement. The USA job advertisements are the most comprehensive and elaborated one--and, what might be explained by high impact of American science on job definition--close to the scientific details of skill description, self management excluded. In Poland, team management appears to be a problem, while Thailand＇s companies seek leaders first. The best balanced approach might be found in Swiss job advertisements. The inter-cultural differences point at impact of cultural heritage, which cal

关键词： project management processes soft skills competency human factor L-Timer job requirements