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Interactional behaviors of the parasitic beetle Paussus favieri with its ant host Pheidole pallidula:the mimetic role of the acoustical signals

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Insect Science 2021年第2期28卷 548-554页

作者： Simone Fattorini Emanuela Maurizi andrea Di Giulio Department of Life Health and Environmental SciencesUniversity of L'AquilaL'AquilaItaly Research Centre for Plant Protection and Certification Council for Agricultural Research and Economics(CREA-DC)FlorenceItaly Department of Science LIMERoma Tre UniversityRomeItaly

The social parasitic beetle Puussus favieri(Coleoptera,Carabidae,Paussini)performs different types of stridulations,which sclectively mimic those emitted by dif-ferent ant castes of its host Pheidole pallidula(Hymenoptera,Formicidae,Myrmicinae).However,the significance of this acoustical mimicry for the success of the parasitic strat-egy and the behaviors elicited in the host ants by stridulations was *** reared Paussus favieri in Pheidole pallidula colonies and filmed their interacting *** analyzed in slow motion the behavior of ants near a stridulating *** analyzed sep-arately trains of pulse(Pa+Pb,produced by repeated rubbings)and single pulse(Pc,produced by a single rubbing)of stridulations,clearly recognizable from the shaking up and down of the beetle hind *** associated them with differcent ant *** full repertoire of sounds produced by P:favieri elicited benevolent responses both in workers and *** found that different signals elicit different(sometimes multiplc)bchaviors in ants,with different frequency in the two ant ***,Pc(alone or in conjunction with other types of pulses)appears to be the type of acoustic signal mostly responsible for all recorded *** results indicate that the acoustic channel plays a pivotal role in the host-parasite *** that a parasite uses the acoustical channel so intensively,and in such a complicated way to trigger ant bchaviors,indicates that acoustic signals may be more important in ant societies than commonly recognized.

关键词： acoustical channel ant castes beetle-ant interactions behavioral repertoire social parasites stridulation

Synthetic PMU Data Creation Based on Generative Adversarial Network Under Time-varying Load Conditions

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Journal of Modern Power Systems and Clean Energy 2023年第1期11卷 234-242页

作者： Xiangtian Zheng andrea Pinceti Lalitha Sankar Le Xie Department of Electrical and Computer Engineering Texas A&M UniversityCollege StationTX 77840USA Dominion Energy RichmondVA 23219USA School of Electrical Computerand Energy EngineeringArizona State UniversityTempeAZ 85281USA IEEE

In this study,a machine learning based method is proposed for creating synthetic eventful phasor measurement unit(PMU)data under time-varying load *** proposed method leverages generative adversarial networks to create quasi-steady states for the power system under slowly-varying load conditions and incorporates a framework of neural ordinary differential equations(ODEs)to capture the transient behaviors of the system during voltage oscillation events.A numerical example of a large power grid suggests that this method can create realistic synthetic eventful PMU voltage measurements based on the associated real PMU data without any knowledge of the underlying nonlinear dynamic *** results demonstrate that the synthetic voltage measurements have the key characteristics of real system behavior on distinct time scales.

关键词： TermsPhasor measurement unit(PMU) generative adversarial networks neural ordinary differential equations data-driven method

LINC complex independent perinuclear actin organization and cell migration

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BIOCELL 2022年第4期46卷 931-935页

作者： andrea FRACCHIA GABI GERLITZ Department of Molecular Biology Faculty of Life Sciences and Ariel Center for Applied Cancer ResearchAriel UniversityAriel40700Israel Department of Bone Marrow Transplantation and Cancer Immunotherapy Hadassah Medical OrganizationJerusalem91120Israel

The link of the metazoan nucleus to the actin cytoskeleton is highly important for actin polymerization and migration of multiple cell types as well as for mechanotransduction and even affects the cellular *** mechanisms of organization of actin filaments next to the nuclear envelope have been *** these mechanisms the most studied one is the Linker of nucleoskeleton and cytoskeleton(LINC)complex-dependent perinuclear actin ***,recently additional mechanisms have been identified:an Actin-related protein-2/3(Arp2/3)-dependent perinuclear actin polymerization during migration of dendritic cells and a perinuclear actin rim that is formed in response to external force application or migration *** parallel,there are also reports on cancer cells that migrate in a LINC complex independent manner and on cancers with reduced expression of the LINC complex ***,suggesting that LINC complex independent migration may be associated with tumour formation.

关键词： Cell migration Actin Lamins Nuclear envelope Cancer

Photoluminescence of CdSe Nanowires Grown With and Without Metal Catalyst

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Nano Research 2011年第4期4卷 343-359页

作者： andrea Fasoli Alan Colli Faustino Martelli Simone Pisana Ping Heng Tan andrea C. Ferrari Department of Engineering University of Cambridge Cambridge CB3 0FA UK Nokia Research Centre Broers Building （East Forum） Cambridge CB3 0GT UK lstituto per la Microelettronica e i Microsistemi del CNR 00133 Rome Italy SKLSM Institute of Semiconductors Chinese Academy of Sciences Beijing 100083 China

We present temperature and power dependent photoluminescence measurements on CdSe nanowires synthesized via vapor-phase with and without the use of a metal catalyst. Nanowires produced without a catalyst can be optimized to yield higher quantum efficiency, and narrower and spatially uniform emission, when compared to the catalyst-assisted ones. Emission at energies lower than the band-edge is also found in both cases. By combining spatially-resolved photoluminescence and electron microscopy on the same nanowires, we show that catalyst-free nanowires exhibit a low-energy peak with sharp phonon replica, whereas for catalyst-assisted nanowires low-energy emission is linked to the presence of nanostructures with extended morphological defects.

关键词： CdSe nanowires photoluminescence

Practical Implementation and Operational Experience of Dynamic Mode Decomposition in Wide-area Monitoring Systems of Italian Power System

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Journal of Modern Power Systems and Clean Energy 2023年第3期11卷 793-802页

作者： andrea Vicario Alberto Berizzi Giorgio Maria Giannuzzi Cosimo Pisani Department of Energy at Politecnico di Milano MilanItaly Terna S.p.A. RomeItaly

This study presents the assumptions and strategies for the practical implementation of the dynamic mode decomposition approach in the wide-area monitoring system of the Italian transmission system operator,*** procedure setup aims to detect poorly damped interarea oscillations of power *** mode decomposition is a data-driven technique that has gained increasing attention in different fields;the proposed implementation can both characterize the oscillatory modes and identify the most influenced *** study presents the results of its practical implementation and operational experience in power system *** focuses on the main characteristics and solutions identified to reliably monitor the interarea electromechanical modes of the interconnected European power ***,conditions to issue an appropriate alarm in case of critical operating conditions are *** effectiveness of the proposed approach is validated by its application in three case studies:a critical oscillatory event and a short-circuit event that occurred in the Italian power system in the previous years,and a 15-min time interval of normal grid operation recorded in March 2021.

关键词： Power system control power system dynamics wide-area monitoring system(WAMS) dynamic mode decomposition

Design methodology of a mini-missile considering flight performance and guidance precision

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Journal of Systems Engineering and Electronics 2024年第1期35卷 195-210页

作者： ZHANG Licong GONG Chunlin SU Hua andrea Da Ronch Shaanxi Aerospace Flight Vehicle Design Key Laboratory School of AstronauticsNorthwestern Polytechnical UniversityXi’an 710072China Faculty of Engineering and Physical Sciences University of SouthamptonSouthampton SO171BJUnited Kingdom

The design of mini-missiles(MMs)presents several novel *** stringent mission requirement to reach a target with a certain precision imposes a high guidance *** miniaturization of the size of MMs makes the design of the guidance,navigation,and control(GNC)have a larger-thanbefore impact on the main-body design(shape,motor,and layout design)and its design objective,i.e.,flight *** a trade-off between flight performance and guidance precision,all the relevant interactions have to be accounted for in the design of the main body and the GNC ***,a multi-objective and multidisciplinary design optimization(MDO)is *** pertinent to motor,aerodynamics,layout,trajectory,flight dynamics,control,and guidance are included in the proposed MDO *** optimization problem seeks to maximize the range and minimize the guidance *** problem is solved by using the nondominated sorting genetic algorithm *** optimum design that balances a longer range with a smaller guidance error is ***,lessons learned about the design of the MM and insights into the trade-off between flight performance and guidance precision are given by comparing the optimum design to a design provided by the traditional approach.

关键词： mini-missiles(MMs) guidance navigation and control(GNC)system multi-objective optimization multidisciplinary design optimization(MDO) flight performance guidance precision

Liver transplantation and multivisceral transplantation in the management of patients with advanced neuroendocrine tumours

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World Journal of Gastroenterology 2018年第20期24卷 2152-2162页

作者： Ashley Kieran Clift andrea Frilling Department of Surgery and Cancer Imperial College London

Orthotopic liver transplantation(OLT) represents a generally accepted albeit somewhat controversially discussed therapeutic strategy in highly selected patients with non-resectable hepatic metastases from neuroendocrine tumours(NET). Whilst there are some exclusion criteria, these are not universally followed, and the optimal set of inclusion parameters for deeming patients eligible has not yet been elucidated. This is due to heterogeneity in the study populations, as well differing approaches employed and also divergences in selection criteria between centres. Recent data have suggested that OLT may represent the most efficacious approach in terms of overall and disease-free survival to the management of NET metastatic to the liver when conducted in accordance with the modified Milan criteria. Therefore, a consensus set of selection criteria requires definition to facilitate stringent and fair allocation of deceased-donor organs, as well as consideration for living-donor organs. In the context of classically non-resectable metastatic tumour bulk, multivisceral transplantation with or without the liver may also be indicated, yet experience is very limited. In this review, we discuss the diagnostic work-up of patients in whom the aforementioned transplantation approaches are being considered, critically analyse the published experience and also anticipate future developments in this field, including a discussion of immediate and longer-term research priorities.

关键词： neuroendocrine transplantation metastases liver multivisceral

Pleistocene radiolarian biostratigraphy in the South China Sea

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Science China Earth Sciences 1999年第5期42卷 536-543页

作者：王汝建 andrea Abelmann Alfred Wegener Institute for Polar and Marine Research 27515 Bremerhaven Germany

Based on a quantitative radiolarian analysis, 5 radiolarian zones (NR1-NR5) have been defined at Core 17957-2 from the South China Sea, considering radiolarian zonations from low latitudes. The absolute age assignment of the radiolarian zones and the ranges of the six marker species is based on the direct correlation with the paleomagnetic and isotopic record, respectively. A comparison of the radiolarian stratigraphic data obtained from Core 17957-2 from the South China Sea with those from the equatorial Pacific and the tropical Indian Ocean shows a close similarity to the ages defined in the equatorial Pacific. The obtained biostratigraphic data provide an excellent tool for further dating of Pleistocene sediments in the China Sea.

关键词： radiolarian biostratigraphy radiolarian zones Pleistocene South China Sea.

Multidisciplinary treatment of rectal cancer in 2014: Where are we going?

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World Journal of Gastroenterology 2014年第32期20卷 11249-11261页

作者： andrea Vignali Paola De Nardi Department of Surgery San Raffaele Scientific Institute Vita Salute University

In the present review we discuss the recent developments and future directions in the multimodal treatment of locally advanced rectal cancer, with respect to staging and re-staging modalities, to the current role of neoadjuvant chemo-radiation and to the conservative and more limited surgical approaches based on tumour response after neoadjuvant combined therapy. When initial tumor staging is considered a high accuracy has been reported for T pre-treatment staging, while preoperative lymph node mapping is still suboptimal. With respect to tumour re-staging, all the current available modalities still present a limited accuracy, in particular in defining a complete response. The role of short vs long-course radiotherapy regimens as well as the optimal time of surgery are still unclear and under investigation by means of ongoing randomized trials. Observational management or local excision following tumour complete response are promising alternatives to total mesorectal excision, but need further evaluation, and their use outside of a clinical trial is not *** preoperative selection of patients who will benefit from neoadjuvant radiotherapy or not, as well as the proper identification of a clinical complete tumour response after combined treatment modalities,will influence the future directions in the treatment of locally advanced rectal cancer.

关键词： Rectal cancer Cancer staging Cancer restaging Neoadjuvant chemoradiation Response Treatment Local control Local excision Complete pathologic response Rectal cancer surgery