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扩张莫尼茨绦虫(圆叶目 :裸头科 )精细胞分化、精子形成及精子形态(英文)

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动物学报 2003年第3期49卷 370-379页

作者：李海云 gerard p.brennan David W. HALTON 华南农业大学动物科技学院广州510642 Medical Biology Centre

本项研究应用光学显微镜、扫描和透射电子显微镜 ,观察了扩张莫尼茨绦虫的精细胞分化、精子形成全过程及精子的精细结构。扩张莫尼茨绦虫的精细胞分化过程为 :1)初级精原细胞主要发生于幼节的睾丸滤泡中 ;2 )次级精原细胞发生不完全分... 详细信息

本项研究应用光学显微镜、扫描和透射电子显微镜 ,观察了扩张莫尼茨绦虫的精细胞分化、精子形成全过程及精子的精细结构。扩张莫尼茨绦虫的精细胞分化过程为 :1)初级精原细胞主要发生于幼节的睾丸滤泡中 ;2 )次级精原细胞发生不完全分裂形成 16个细胞一簇的初级精母细胞群 ,以共同的中央细胞质相连 ;3)初级精母细胞的特征为细胞核中出现联会复合体结构 ;4)紧接着的第二次成熟分裂 ,产生 6 4个由中央细胞质相连的细胞核较小的精细胞。精子形成始于精细胞中分化区的形成 ,成熟精子缺乏线粒体 ,具有质膜和冠状体、 1～ 4个领域排布的质膜下皮层微管 ,细胞质中存在电子致密的颗粒状物质 ,具一个不规则形态的细胞核 ,具有“9+1”类型的轴丝构造 ,缺乏轴丝周围鞘。从精子的纵切面上可将精子区分为 5个区段 (Ⅰ～Ⅴ区 )。在精子形成过程中 ,中心粒基部出现螺旋形小根结构在寄生虫中为首次报导 ;成熟精子具有游离鞭毛 ,在绦虫中为首次发现.

关键词：扩张莫尼茨绦虫圆叶目裸头科精细胞分化精子形成精子形态

扩张莫尼茨绦虫(绦虫纲:圆叶目)的原肾管及原肾管概念的评述(英文)

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动物学报 2004年第4期50卷 638-644页

作者：李海云 gerard p.brennan David W.HALTON 华南农业大学动物科学学院 Medical Biology Centre Queen's University BelfastBT97BLUK

本研究应用透射电子显微镜研究了扩张莫尼茨绦虫原肾管的细胞学特征 ,莫尼茨绦虫原肾管的焰茎球为一个过滤器结构 ,类似于“挡河坝”样构造 ,此构造由端细胞和近管细胞外突形成的肋条 (或称杆 )相互交错排列而成。肋条之间由细胞外物质... 详细信息

本研究应用透射电子显微镜研究了扩张莫尼茨绦虫原肾管的细胞学特征 ,莫尼茨绦虫原肾管的焰茎球为一个过滤器结构 ,类似于“挡河坝”样构造 ,此构造由端细胞和近管细胞外突形成的肋条 (或称杆 )相互交错排列而成。肋条之间由细胞外物质构成的“膜”结构连接 ,过滤作用通过该“膜”发生。焰细胞与近管细胞交界处有裂缝或孔与细胞外的结缔组织 (实质组织 )相通 ;原肾管的毛细排泄管细胞质索之间没有隔状联结 ;毛细排泄管及排泄管的管腔内有大量珠状微绒毛突起以增加表面积。从扩张莫尼茨绦虫及其它一些无脊椎动物原肾管的研究结果表明 ,原原肾管概念将焰细胞作为封闭的盲端已不再合适 ,需要进行修订 ,建议修订为 :原肾管是一种焰细胞系统 ,通常由焰细胞、管细胞和肾孔细胞组成 ,焰茎球作为过滤装置与周围的结缔组织 (实质组织 )有或没有裂缝 (孔 )

关键词：扁形动物绦虫绦虫纲圆叶目原肾管扩张莫尼茨绦虫

扩张莫尼茨绦虫(绦虫纲:圆叶目)卵黄细胞发育的超微结构(英文)

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动物学报 2003年第2期49卷 256-261页

作者：李海云 gerard p.brennan David W.HALTON 华南农业大学动物科学院广州510642 MedicalBiologyCentre TheQueen'sUniversityofBelfastBelfastBT97BLUK

用透射电镜观察了扩张莫尼茨绦虫 (Monieziaexpansa)卵黄细胞发育的全过程。扩张莫尼茨绦虫卵黄细胞发育的规律为 :(1)细胞体积不断增大 ;(2 )质、核比不断增加而核体积几乎不发生改变 ,核表面从规则变为不规则 ,再由不规则变为规则 ,... 详细信息

用透射电镜观察了扩张莫尼茨绦虫 (Monieziaexpansa)卵黄细胞发育的全过程。扩张莫尼茨绦虫卵黄细胞发育的规律为 :(1)细胞体积不断增大 ;(2 )质、核比不断增加而核体积几乎不发生改变 ,核表面从规则变为不规则 ,再由不规则变为规则 ,核内出现染色质浓缩成小块再分散的发育变化过程 ;(3)线粒体逐渐增多 ,发育不断完善 ;(4)粗面内质网及高尔基复合体出现由少到多 ,发育不断完善 ,再由多到少不断退化的变化 ;(5 )由高尔基复合体组装的电子致密的小卵黄囊不断融合 ,至卵黄细胞成熟时仅有一卵黄囊。

关键词：绦虫纲圆叶目扩张莫尼茨绦虫卵黄细胞细胞发育超微结构

Fine structure of spermatozoon in the Cestode Moniezia expansa（Cyclophyllidea, Anoplocephalidae, Moniezia）

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Fine structure of spermatozoon in the Cestode Moniezia expan...

Ultrastructural Observations on Vitellogenesis in Moniezia expansa （Cestoda: Cyclophyllidea）

中国动物学会第七届全国青年寄生虫学工作者学术讨论会

作者： David W.Halton gerard p.brennan Medical Biology Centre Queen’s University Belfast BT9 7BLUK Medical Biology Centre Queen’s University Belfast BT9 7BLUK

＜正＞ IntroductionIn our study of reproductive complex organs of Moniezia expansa, we found the spermatozoon of the flatworm is a bit different from those reported by Swiderski （1968）, Ba and Marchand （1992）, and a bit different from those spermatozoa of 60 other species of eucestoda studied so far （Justine, 1998;Miquel ＆ Marchand, 1997,1998;Tian et al, 1998）. Any new morphological and ultrastructural characters

关键词： Fine structure spermatozoon Moniezia expansa.

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Ultrastructural Observations on Vitellogenesis in Moniezia e...

Spermatogenesis and Spermiogenesis in the Cestode Moniezia expansa（Cyclophyllidea, Anoplocephalldae）

中国动物学会第七届全国青年寄生虫学工作者学术讨论会

作者： David W.Halton gerard p.brennan Medical Biology Centre Queen’s University Belfast BT9 7BLUK Medical Biology Centre Queen’s University Belfast BT9 7BLUK

＜正＞ IntroductionVitellocytes play at least two important functions in parasite embryogenesis: （1） provision and storage of material for the formation of the egg-shell , and （2） provision and storage of nutritive material supply （yolk） for the developing embryo. Thus, the process serves a key role in parasite reproduction. There are several reports on the

关键词： cestode Moniezia expansa vitellogenesis ultrastructure

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Spermatogenesis and Spermiogenesis in the Cestode Moniezia e...

NFA:A neural factorization autoencoder based online telephony fraud detection

中国动物学会第七届全国青年寄生虫学工作者学术讨论会

作者： David W.Halton gerard p.brennan Medical Biology Centre Queen’s University Belfast BT9 7BLUK Medical Biology Centre Queen’s University Belfast BT9 7BLUK

＜正＞ IntroductionThe geographic distribution of Moniezia expansa （ Rudolphi, 1810） is worldwide. It is one of the largest tapeworm measuring up to 6m in length and 1.6cm in width, occurs predominantly in the intestine of sheep, goats （mainly in lambs and kids） and other ruminants. Although it can’t cause direct stock losses in the form of dying animals which usually grabs attention of farmers, indirect losses such as reduced

关键词： Spermatogenesis Spermiogenesis Moniezia expansa.

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Digital Communications and Networks 2024年第1期10卷 158-167页

作者： Abdul Wahid Mounira Msahli Albert Bifet gerard Memmi Department of Computer Sciences and Networks(INFRES) LTCITelecom ParisInstitut Polytechnique de ParisPalaiseau91120France Artificial Intelligence Institute The University of WaikatoPrivate Bag 31053240HamiltonNew Zealand

The proliferation of internet communication channels has increased telecom fraud,causing billions of euros in losses for customers and the industry each *** constantly find new ways to engage in illegal activity on the *** reduce these losses,a new fraud detection approach is *** fraud detection involves identifying a small number of fraudulent calls from a vast amount of call *** an effective strategy to combat fraud has become *** much effort has been made to detect fraud,most existing methods are designed for batch processing,not real-time *** solve this problem,we propose an online fraud detection model using a Neural Factorization Autoencoder(NFA),which analyzes customer calling patterns to detect fraudulent *** model employs Neural Factorization Machines(NFM)and an Autoencoder(AE)to model calling patterns and a memory module to adapt to changing customer *** evaluate our approach on a large dataset of real-world call detail records and compare it with several state-of-the-art *** results show that our approach outperforms the baselines,with an AUC of 91.06%,a TpR of 91.89%,an FpR of 14.76%,and an F1-score of 95.45%.These results demonstrate the effectiveness of our approach in detecting fraud in real-time and suggest that it can be a valuable tool for preventing fraud in telecommunications networks.

关键词： Telecom industry Streaming anomaly detection Fraud analysis Factorization machine Real-time system Security

An Optimization Model for Reliability Improvement and Cost Reduction Through EV Smart Charging

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Journal of Modern power Systems and Clean Energy 2024年第2期12卷 608-620页

作者： Jinping Zhao Ali Arefi Alberto Borghetti gerard Ledwich School of Engineering and Energy Murdoch UniversityPerthAustralia Department of Electrical Electronicand Information EngineeringUniversity of BolognaBologna40126Italy School of Electrical Engineering and Robotics Queensland University of TechnologyBrisbaneQLD 4000Australia

There is a general concern that the increasing penetration of electric vehicles(EVs)will result in higher aging failure probability of equipment and reduced network *** electricity costs may also increase,due to the exacerbation of peak load led by uncontrolled EV *** paper proposes a linear optimization model for the assessment of the benefits of EV smart charging on both network reliability improvement and electricity cost *** objective of the proposed model is the cost minimization,including the loss of load,repair costs due to aging failures,and EV charging *** proposed model incorporates a piecewise linear model representation for the failure probability distributions and utilizes a machine learning approach to represent the EV charging *** two different test systems(a 5-bus network and the IEEE 33-bus network),this paper compares aging failure probabilities,service unavailability,expected energy not supplied,and total costs in various scenarios with and without the implementation of EV smart charging.

关键词： Aging failure electric vehicle(EV) EV charging power system reliability expected energy not supplied distribution network.

Remote electric powering by germanium photovoltaic conversion of an Erbium-fiber laser beam

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Chip 2024年第3期3卷 15-20页

作者： Richard Soref Francesco De Leonardis Oussama Moutanabbir gerard Daligou Engineering Department University of Massachusetts at BostonBostonMA 02125USA Department of Electrical and Information Engineering Politecnico di BariBari 70121-70132Italy Department of Engineering physics Ecole Polytechnique de MontrealMontrealQuebec 999040Canada

The commercially available 4000-Watt continuous-wave(CW)Erbium-doped-fiber laser,emitting at the 1567-nm wavelength where the atmosphere has high transmission,provides an opportunity for harvesting electric power at remote“off the grid”locations using a multi-module photovoltaic(pV)“receiver”*** paper proposes a 32-element monocrystalline thick-layer Germanium pV panel for efficient harvesting of a collimated 1.13-m-diam *** 0.78-m^(2) pV panel is constructed from commercial Ge *** incident CW laser-beam power in the 4000 to 10,000 W range,our thermal,electrical,and infrared simulations predict 660 to 1510 Watts of electrical output at the panel temperatures of 350 to 423 K.

关键词： Laser power transmission photovoltaic panels Germa-nium infrared detection Erbiumﬁber laser Ytterbiumﬁber laser Directed-beam energy harvesting