We present GS, a distributed algorithm for scalable self-configuration and self-healing in multi-hop wireless sensor networks. The algorithm enables network nodes in a 2D plane to configure themselves into a cellular hexagonal structure where cells have tightly bounded geographic radius and the overlap between neighboring cells is low. The structure is self-healing under various perturbations, ...

 Endometrial adenocarcinoma is uncommon in fewer than 40-year-old people. The first common sign and symptoms are abnormal vaginal bleeding and discharge. Metastasis is occurred in the late stage. Here we present a 31-year-old nullipar woman who was admitted to surgical ward with enlarged right inguinal lymphnode from one month ago. She had no history of previous malignancy, infectious condition...

Although the most important prognostic and predictive marker in colorectal cancer is tumor cells in lymph nodes, approximately 30% of patients who are node-negative die from occult metastases. Molecular staging employing specific markers and sensitive detection technologies has emerged as a powerful platform to assess prognosis in node-negative colon cancer. Integrating molecular staging into a...

Determining the shortest path from one node to another in a graph is probably the most popular question in graph theory. If the graph is non-negatively weighted, Dijkstra’s algorithm is the classic algorithm used to answer this question. Because of its breadth-first-search character, this algorithm usually spreads circularly around the source node of the search and hence the search space can be...

Porous carbon fiber-reinforced Al-Si alloy matrix composites and fiber felt-reinforced with content of 10 wt.% were prepared by die casting. The dry tribological properties these two studied using a ball-on-disc rotational tribometer in the speed range 300 r/min to 1000 r/min, wear mechanisms analyzed combination morphology. results show that friction coefficient rate are lower than at differen...

Sind Peer-to-Peer-(P2P)-Systeme ein neuer Ansatz zum Design von verteilten Anwendungen? Eigentlich nicht. Zwar sind P2P-Systeme ein großer Erfolg, aber überspitzt formuliert, stellen sie „nur“ eine Rückbesinnung auf das ursprüngliche Internet-Prinzip dar: Jeder Internet-Node kann mit jedem anderen Internet-Node bidirektional kommunizieren, zum Beispiel, sowohl als FTP-Client als auch als FTP-Se...

The Marine Data Infrastructure Germany (MDI-DE) is a thematic network of federal and state organizations. It was created mainly to enable the reporting requirements for the European Marine Strategy Framework Directive (MSFD) to be carried out technically and organisationally. From a technical-conceptual point of view, it is a spatial data infrastructure (SDI), which is by numerous components. E...

Wireless sensor networks have recently come into prominence because they hold the potential to revolutionize many segments of our economy and life, from environmental monitoring and conservation, to manufacturing and business asset management, to automation in the transportation and health-care industries. Information collected by and transmitted on a sensor network describes conditions of phys...

background: sentinel  lymph  node  biopsy  has  shown  to  be  a  good  alternative procedure  for  axillary  lymph  node  dissection  and  to lead  to  lower  frequency  of morbidity, though this technique has its own side effects. it needs especial equipment and may not be available in some medical centers, especially in developing countries. this study aimed to identify a subgroup of patient...