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Modelling large deformation and soil–water–structure interaction with material point method:Briefing on MPM2017 conference

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Journal of Hydrodynamics 2017年第3期29卷 393-396页

作者： Alexander rohe Dongfang Liang Deltares DelftThe Netherlands Department of Engineering University of CambridgeCambridgeUK

The 1st International Conference on the Material Point Method for ＂Modelling Large Deformation and Soil–Water–Structure Interaction＂（MPM2017）was held in Delft,The Netherlands on 10-13 January *** is the first conference organised by the Anura3D MPM Research Community,following a series of international workshops and symposia previously held in The Netherlands,UK,Spain and Italy,as part of the European Commission FP7 Marie-Curie project *** are delighted to present seven contributions in this Special Column of the Journal of Hydrodynamics,and take this opportunity to announce that the 2nd conference,MPM2019,will be held in Cambridge,UK in January 2019.

关键词： Material point method soil–water–structure interaction meshfree methods particle methods

Failure of levees induced by toe uplift:Investigation of post-failure behavior using material point method

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Journal of Rock Mechanics and Geotechnical Engineering 2023年第4期15卷 970-983页

作者： Veronica Girardi Francesca Ceccato Alex rohe Paolo Simonini Fabio Gabrieli University of Padua Department of CivilEnvironmental and Architectural EngineeringVia Ognissanti 39PaduaItaly GeoHal Graswinckelstraat 50DelftNetherlands

Levees are essential structures in flood defense systems,and their failures can lead to devastating consequences on the surrounding *** of the failure mechanisms mostly controlled by the foundation soil stratigraphy is the instability of the land side slope,triggered by the development of high uplift pressures in the *** complex phenomenon has been investigated experimentally with centrifuge tests or large-scale tests and numerically with the limit equilibrium method(LEM)and the finite element method(FEM).In this work,we applied a multiphase formulation of the material point method(MPM)to analyze the development of toe uplift instability mechanism,from the onset of failure to large *** numerical model is inspired by an experiment carried out in a geotechnical centrifuge test by Allersma and rohe(2003).The comparison with the experiment allows for understanding critical pore pressure triggering large displacements in the foundation ***,we numerically evaluated the impact of different values of foundation soils’hydraulic conductivity on the failure *** results show that hydraulic conductivity mainly influences the time of failure onset and the extension of shear localization at ***,the advantages of using large displacement approaches in the safety assessment of earth structures are *** FEM,there are no issues with element distortions generating difficulties with numerical convergence,allowing for full postfailure *** capability permits precise quantification of earth structure damages and post-failure *** ensuing reinforcement systems’design is no longer over-conservative,with a significant reduction in associated costs.

关键词： Slopes safety assessment Levees Uplift pressure Large deformation analysis

Large Ameloblastoma of Mandible: Our Experience with Intermaxillary Fixation

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International Journal of Otolaryngology and Head & Neck Surgery 2016年第1期5卷 17-22页

作者： Anoop Attakkil Vandana Thorawade Rajesh Kar Shobhna Chandran Devkumar Rengaraja Karthik Rao dnya.eshwa. rohe Department of ENT Grant Medical College & Sir J.J. Hospital Mumbai India

Ameloblastomas are benign dental tumors, constituting 15% of oral neoplasms, most frequent odontogenic tumor of the jaw. Patient presenting at a late stage usually presents with large swelling with facial deformity. We present a case of 50 years old male who presented with recurrent ameloblastoma on the left side of the mandible causing facial disfigurement and functional impairment. Adequate removal of the tumor required hemimandibulectomy and intermaxillary fixation was done without any bony reconstruction. We would like to focus on the excellent postoperative result with regard to facial symmetry and functional improvement obtained in this case, though the available management protocols differ and are more advanced in current scenario. This case report gives hope and guidance to the surgeons who face difficulty in managing the deforming benign bony tumors due to the unavailability of facility and funds to reconstruct.

关键词： Ameloblastoma Resection Intermaxillary Fixation Mandible

Tracheal Leiomyoma: A Rare Entity &Role of Diode Laser in Its Management

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International Journal of Otolaryngology and Head & Neck Surgery 2014年第4期3卷 143-148页

作者： Anoop Attakkil Vandana Thorawade Mohan Jagade Rajesh Kar Kartik Parelkar dnyaneswar rohe Rohini Kashide Poonam Khairnar Department of ENT Grant Medical College & Sir J.J. Hospital Mumbai India

Primary leiomyoma of the trachea is a rare disease which is of smooth muscle in origin. Presenting symptoms depend on the location and size of the tumor. Here we are presenting a 45-year-old female, who was misdiagnosed and being treated for bronchial asthma presented to our institution with stridor. Her x-ray and Computed Tomography of neck showed tracheal mass & biopsy reported leiomyoma. Objective of this presentation is to report tracheal leiomyoma which is a rare clinical entity and how endoscopic resection of the tumor with diode laser helped us in attaining complete resection of tumor with minimal intra-operative and post-operative complications.

关键词： Leiomyoma Diode Laser Trachea

Chondroma of Tongue: A Rare Case Report &Review of Literature

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International Journal of Otolaryngology and Head & Neck Surgery 2014年第6期3卷 359-363页

作者： Anoop Attakkil Vandana Thorawade Mohan Jagade Rajesh Kar Kartik Parelkar dnyaneswar rohe Poonam Khairnar Reshma Hanowate Department of ENT Grant Medical College & Sir J.J. Hospital Mumbai India

Chondromas are common benign cartilaginous tumours in the skeletal system usually found in extremities. Extra skeletal chondromas are relatively uncommon of which those in head and neck regions are rarely documented. Although the tongue is one of the most common sites of oral soft tissue chondroma, lingual chondromas are rare as evidenced by the fact that only 33 cases are identified in the review of literature till now. This report has the objective of presenting a rare case of lingual enchondroma in a 26-year-old male which was excised with no evidence of recovery during follow up. We have also tried to present a concise review of the relevant literature.

关键词： Soft Tissue Chondroma Tongue

Our Experience with Embryonal Rhabdomyosarcoma Presenting as Aural Polyp

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International Journal of Otolaryngology and Head & Neck Surgery 2015年第1期4卷 1-5页

作者： Anoop Attakkil Vandana Thorawade Mohan Jagade Rajesh Kar dnyaneswar rohe Reshma Hanowate Devkumar Rangaraja Kartik Parelkar Department of ENT Grant Medical College & Sir J.J. Hospital Mumbai India

Aural polyps are a common clinical entity encountered by otorhinolaryngologist in daily practice. Polyps are frequently seen in paediatric patients, usually inflammatory in nature. In children rhabdomyosarcomas (RMS) can mimic all the cinical features of chronic suppurative otitis media which usually present as external auditory canal mass or polyp. Here we present a case where a male child presented with recurrence of polyp in left ear which was finally diagnosed as embryonal rhabdomyosarcoma which is a rare and invariably fatal disease in children. Through this article we intend to highlight the failures and delay committed in attaining diagnosis in this patient in spite of multispecialty evaluation involving repeated imaging and histopathological correlation. Our experience with embryonal rhabdomyosarcoma throws light on the high vigilance required in handling the aural polyps in pediatric population as early diagnosis and treatment are the key elements for successful outcomes.

关键词： Embryonal Rhabdomyosarcoma Aural Polyp CSOM

An Unusal Case of Epidermal Cyst in Submandibular Space

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International Journal of Otolaryngology and Head & Neck Surgery 2014年第5期3卷 213-215页

作者： Rajesh Kar Vandana Thorawade Mohan Jagade Anoop Attakkil Shubhangi Kedar dnya.eshwa. rohe Kartik Parelkar Rajanala Nataraj Devkumar Rengaraja Department of ENT & Head & Neck Surgery Grant Government Medical College & Sir J.J. Group of Hospitals Mumbai India

Epidermal cysts are very common skin lesions and 1.6% are seen in oral cavity. But epidermal cyst in submandibular region is extremely rare with only 3 such reported cases in last 25 years. Here we present a rare case... 详细信息

关键词： Epidermal Cyst Submandibular Space Epidermoid Cyst

An Entangled Fish Hook in Nose: A Tricky Case

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International Journal of Otolaryngology and Head & Neck Surgery 2014年第3期3卷 137-139页

作者： Rajesh Kar M. V. Jagade A. Anoop Shubhangi Kedar dnya.eshwa. rohe Poonam Khairnar Vandana P. Thorawade Reshma Chavan Department of ENT & Head & Neck Surgery Grant Government Medical College & Sir J. J Group of Hospitals Mumbai India

ENT practitioners encounter different types of nasal foreign bodies in their daily practices. A variety of nasal foreign bodies have been described in literature. Here we present a case of an entangled fish hook in th... 详细信息

关键词： Nasal Foreign Bodies Fishhook

Ancient DNA of the pygmy marmoset type specimen Cebuella pygmaea(Spix,1823)resolves a taxonomic conundrum

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Zoological Research 2021年第6期42卷 761-771页

作者： Jean P.Boubli Mareike C.Janiak Leila M.Porter Stella de la Torre Liliana Cortes-Ortiz Maria N.Fda Silva Anthony B.Rylands Stephen Nash Fabricio Bertuol Hazel Byrne Felipe E.Silva Fabio rohe Dorien de Vries Robin M.D.Beck Irune Ruiz-Gartzia Lukas F.K.Kuderna Tomas Marques-Bonet Tomas Hrbek Izeni P.Farias Anneke Hvan Heteren Christian Roos School of Science Engineering&EnvironmentUniversity of SalfordSalford M54WTUK Instituto Nacional de Pesquisas da Amazonia ManausAmazonas 69060-001Brazil Department of Anthropology Northern Illinois UniversityDeKalbIL 60115-2828USA College of Biological and Environmental Sciences Universidad San Francisco de QuitoQuito 170901Ecuador Department of Ecology and Evolutionary Biology University of MichiganAnn ArborMI 48109USA Re:wild AustinTX 78767USA Laboratorio de Evolução e Genética Animal Universidade Federal do AmazonasManausAmazonas 69080-900Brazil Department of Anthropology University of UtahSalt Lake CityUT 84112USA Research Group on Primate Biology and Conservation MamirauaInstitute for Sustainable DevelopmentTeféAmazonas 69553-225Brazil Experimental and Health Sciences Department(DCEXS) Institut de Biologia EvolutivaUniversitat Pompeu Fabra-CSICBarcelona 08002Spain Department of Biology Trinity UniversitySan AntonioTX 78212USA Bavarian State Collection of Zoology Zoologische Staatssammlung MünchenStaatliche Naturkundliche Sammlungen Bayerns81247 MunichGermany GeoBio-Center Ludwig-Maximilians-Universitat München80333 MunichGermany Department Biologie II Ludwig-Maximilians-Universitat München82152 MunichGermany Gene Bank of Primates and Primate Genetics Laboratory German Primate CenterLeibniz Institute for Primate Research37077 GottingenGermany

The pygmy marmoset,the smallest of the anthropoid primates,has a broad distribution in Western *** studies using molecular and morphological data have identified two distinct species separated by the Napo and Solimoes-Amazonas ***,reconciling this new biological evidence with current taxonomy,i.e.,two subspecies,Cebuella pygmaea pygmaea(Spix,1823)and Cebuella pygmaea niveiventris(Lönnberg,1940),was problematic given the uncertainty as to whether Spix’s pygmy marmoset(Cebuella pygmaea pygmaea)was collected north or south of the Napo and Solimoes-Amazonas rivers,making it unclear to which of the two newly revealed species the name pygmaea would ***,we present the first molecular data from Spix’s type specimen of Cebuella pygmaea,as well as novel mitochondrial genomes from modern pygmy marmosets sampled near the type locality(Tabatinga)on both sides of the *** these data,we can confirm the correct names of the two species identified,i.e.,*** for animals north of the Napo and Solimoes-Amazonas rivers and *** for animals south of these two *** analyses of the novel genetic data placed into the context of cytochrome b gene sequences from across the range of pygmy marmosets further led us to reevaluate the geographical distribution for the two Cebuella *** dated the split of these two species to 2.54 million years *** discuss additional,more recent,subdivisions within each lineage,as well as potential contact zones between the two species in the headwaters of these rivers.

关键词： Historic DNA DNA taxonomy Pygmy marmoset Cebuella pygmaea C.niveiventris Amazon Type specimen