The goal of the ROSA project is to develop a variableautonomy architecture to support ground-based control of space-deployed robotic systems in dynamic workspace environments. This capability is aimed at unmanned satellite servicing systems that must rendezvous with, capture and service free flying objects. As data communication limitations force the system to perform free flyer capture autonom...

Endophytes are fungi that cause asymptomatic infections in leaves and stems of healthy plants. This study evaluated the presence of endophytic fungi on leaves of Rosa hybrida collected in Bogota, (Colombia) using histological techniques and light microscopy. Histological preparations showed fungal mycelium with few cells in the vascular tissue. Colonization of mesophyll cells was not observed. ...

Responses of plant traits to climate changes are complex, which could be mirrored by the investigations of herbarium specimens. By examining specimens of Rosa and Cotoneaster species collected since 1920s in Hengduan Mountains, we analyzed the changes of flowering phenology and flower size in the past century when climate changes were considered to be intensified. We found that flowering phenol...

Rust fungi in the genus Phragmidium are frequent pathogens of both wild and cultivated roses. We investigated the occurrence and relationships of rusts on dog roses, Rosa sect. Caninae (Rosa canina, R. corymbifera and R. rubiginosa) in Germany. Two Phragmidium species, P. mucronatum and P. tuberculatum, were able to infect each of the three dog rose species examined. However, the overall infect...

The Chinese species of the genus Philoctetes Abeille de Perrin, 1879 are revised and keyed for the first time. Six species are recorded, of which two are new for science: Philoctetes longiflagellis Rosa, Wei & Xu, sp. nov. (Inner Mongolia and Shanxi) and P. simulator Rosa, Notton & Xu, sp. nov. (Tianjin). The new synonym, Philoctetes cupratus (Mócsary, 1914), syn. nov. of Philoctetes mongolicus...

Acknowledgements: We thank John McMillan, David Laibson, Colin Camerer, Nachum Sicherman, Duncan Simester, and three anonymous referees for useful comments. We thank Cara Barber, Rosa Blackwood, Mandar Oak, and Rosa Stipanovic for research assistance. For financial support, Frederick and Loewenstein thank the Integrated Study of the Human Dimensions of Global Change at Carnegie Mellon Universit...

Lateral branching plays an important role in the elaboration of adult plants architecture. Herein, we adopted a modified AFLP approach combined with a degenerate primer amplification to identify and isolate in the underinvestigated ornamental species H. rosa-sinensis an orthologous element of the MAX2 gene (More Axillary Branches), which acts downstream of the branching inhibition signaling pat...

The drying process of traditional Chinese medicine Rosa laevigata Michx was investigated in a laboratory scale dryer. Drying experiments were conducted at five temperatures of 40 ̊C, 50 ̊C, 60 ̊C, 70 ̊C and 80 ̊C. The experimental data were fitted to ten different thin layer drying models to select a suitable model for describing the drying process of Rosa laevigata Michx fruits. The results showed ...

In this paper, we present the knowledge-based system rosa working on spatial and functional organizations in agriculture. The reasoning in rosa combines hierarchical classification, case-based reasoning, and qualitative spatial reasoning. The goal of the system is twofold: formalizing and building a case base holding on farm spatial and functional organizations, and helping the analysis of new ...