Development and Evolution of the Muscles of the Pelvic Fin

Locomotor strategies in terrestrial tetrapods have evolved from the utilisation of sinusoidal contractions of axial musculature, evident in ancestral fish species, to the reliance on powerful and complex limb muscles to provide propulsive force. Within tetrapods, a hindlimb-dominant locomotor strategy predominates, and its evolution is considered critical for the evident success of the tetrapod transition onto land. Here, we determine the developmental mechanisms of pelvic fin muscle formation in living fish species at critical points within the vertebrate phylogeny and reveal a stepwise modification from a primitive to a more derived mode of pelvic fin muscle formation. A distinct process generates pelvic fin muscle in bony fishes that incorporates both primitive and derived characteristics of vertebrate appendicular muscle formation. We propose that the adoption of the fully derived mode of hindlimb muscle formation from this bimodal character state is an evolutionary innovation that was critical to the success of the tetrapod transition

Infrastructure for Detector Research and Development towards the International Linear Collider

The EUDET-project was launched to create an infrastructure for developing and testing new and advanced detector technologies to be used at a future linear collider. The aim was to make possible experimentation and analysis of data for institutes, which otherwise could not be realized due to lack of resources. The infrastructure comprised an analysis and software network, and instrumentation infrastructures for tracking detectors as well as for calorimetry.Comment: 54 pages, 48 picture

Testing Hadronic Interaction Models using a Highly Granular Silicon-Tungsten Calorimeter

A detailed study of hadronic interactions is presented using data recorded with the highly granular CALICE silicon-tungsten electromagnetic calorimeter. Approximately 350,000 selected negatively charged pion events at energies between 2 and 10 GeV have been studied. The predictions of several physics models available within the Geant4 simulation tool kit are compared to this data. A reasonable overall description of the data is observed; the Monte Carlo predictions are within 20% of the data, and for many observables much closer. The largest quantitative discrepancies are found in the longitudinal and transverse distributions of reconstructed energy.Comment: 28 pages, 24 figures, accepted for publication in NIM

Research and Design of a Routing Protocol in Large-Scale Wireless Sensor Networks

无线传感器网络，作为全球未来十大技术之一，集成了传感器技术、嵌入式计算技术、分布式信息处理和自组织网技术，可实时感知、采集、处理、传输网络分布区域内的各种信息数据，在军事国防、生物医疗、环境监测、抢险救灾、防恐反恐、危险区域远程控制等领域具有十分广阔的应用前景。 本文研究分析了无线传感器网络的已有路由协议，并针对大规模的无线传感器网络设计了一种树状路由协议，它根据节点地址信息来形成路由，从而简化了复杂繁冗的路由表查找和维护，节省了不必要的开销，提高了路由效率，实现了快速有效的数据传输。 为支持此路由协议本文提出了一种自适应动态地址分配算——ADAR（AdaptiveDynamicAddre...As one of the ten high technologies in the future, wireless sensor network, which is the integration of micro-sensors, embedded computing, modern network and Ad Hoc technologies, can apperceive, collect, process and transmit various information data within the region. It can be used in military defense, biomedical, environmental monitoring, disaster relief, counter-terrorism, remote control of haz...学位：工学硕士院系专业：信息科学与技术学院通信工程系_通信与信息系统学号：2332007115216

Household composition and social differentiation. North western Portugal in the nineteenth century

The authors gratefully acknowledge the comments of Robert Rowland, Stuart Woolf, Larry Poos and Michael Redclift. The argument was greatly influenced by discussions with Richard Smith, Joäo de Pina-Cabral and Caroline Brettell. Research by Joäo Nunes was supported by a grant from the Instituto Nacional de Investigaçäo Cientifica, Lisbon.The province of Minho in the north west of Portugal has long been regarded as a differentiated cultural region of Portugal. This paper begins with a brief presentation of the evidence on household composition in this region published so far, which offers new arguments about the identification of this province's characteristics. The existence of significant proportions of complex family households is related to patterns of post-marital residence, to demographic features and to strategies of patrimony devolution. The pattern of household composition allows a degree of variation both within each community and across the region. These differences do not imply, however, that different social processes are at work., It is argued that residence should not be given too much importance, but rather be considered as one process among others. The process of household formation is then analysed in a broader social context and related to factors such as forms of labour and patterns of female employment. The authors suggest that some features of rural society in Minho raise substantial problems as far as the use of the ‘classic peasantry’ as a theoretical reference in studies of an historical nature is concerned, and point to new avenues that may help to foster our knowledge and understanding of historical rural societies in Europe.La province du Minho, au nord-ouest du Portugal, est depuis longtemps considérée commeune région culturellement différenciée. L'article commence par rappeler brièvement les traits caractéristiques des families dans cette région, ce qui caractérìse par le fait même la région elle-même. L'importance quantitative des ménages complexes est liée à des modèles de résidence post-maritale, à des faits démographiques et à des stratégies de transmission du patrimoine. Ce modèle de composition des ménages permet une grande variabilityé tant dans les collectivités qu'au plan de la région, mais cette différenciation n'implique pas que des processus différents soient àľoeuvre. Car le fait de la résidence n'est pas un fait fundamental: le processus de formation des ménages est en effet inscrit dans un contexte social plus large oùjouent aussi les formes de travail et ľempioi féminin. Les auteurs suggèrent alors que ces caractéristiques de la société rurale du Minho posent des problèmes de fond dès qu'on fait théoríquement référence à une ‘paysannerie classique’ dans une étude historique; ils indiquent de nouvelles pistes qui pourraient alimenter la connaissance des sociétés rurales européennes.Die Provinz Minho im Nordwesten Portugals ist lange als eine Region angesehen worden, die sich kulturell unterschiedlich entwickelt hat. Der Beitrag beginnt mit einer kurzen Vorstellung des bisher veröffentlichten Materials über die Zusammensetzung der Haushalte in dieser Region. Damit werden neue Belege zur Bestimmung der besonderen Kennzeichen dieser Provinz vorgelegt. Das Vorhandensein bedeutender Anteile von Groβfamilien-Haus-halten hängt zusammen mit den Mustern der Wohnstandortwahl nach der Eheschlieβung, demographischen Merkmalen und Strategien der Erbfolge. Das Muster der Haushaltszusammensetzung erlaubt eine gewisse Variation, sowohl innerhalb einer jeden Gemeinde, als auch zwischen den Regionen. Diese Unterschiede implizieren jedoch nicht, daβ unterschiedliche soziale Prozesse wirksam sind. Es wird behauptet, daβ die Wohnsitzwahl nicht von so groβer Bedeutung ist, sondern als ein Prozess unter anderen anzusehen ist. Es wird dann der Prozess der Haushaltsbildung in einem breiteren sozialen Kontext analysiert und in Beziehung gesetzt zu Faktoren wie Arbeitsfor-men und Muster der Erwerbstätigkeit von Frauen. Die Autoren weisen darauf hin, daβ einige Merkmale der ländlichen Gesellschaft des Minho, was die Benutzung des klassischen Bauerntums als theoretisches Bezugssystem bei historischen Studien anbetrifft, erhebliche Probleme aufwerfen. Sie zeigen neue Wegen auf, die helfen können, unser Wissen und unsere Kenntnis über historische ländliche Gesellschaften zu verbessern

Testing Hadronic Interaction Models using a Highly Granular Silicon-Tungsten Calorimeter

A detailed study of hadronic interactions is presented using data recorded with the highly granular CALICE silicon-tungsten electromagnetic calorimeter. Approximately 600,000 selected negatively changed pion events at energies between 2 and 10 GeV have been studied. The predictions of several physics models available within the GEANT4 simulation tool kit are compared to this data. Although a reasonable overall description of the data is observed, there are significant quantitative discrepancies in the longitudinal and transverse distributions of reconstructed energy