Giulia Menichetti, Daniel Remondini, Pietro Panzarasa, Raúl J. Mondragón, and Ginestra Bianconi Department of Physics and Astronomy and INFN Sez. Bologna, Bologna University, Viale B. Pichat 6/2 40127 Bologna, Italy School of Business and Management, Queen Mary University of London, London E1 4NS , United Kingdom School of Electronic Engineering and Computer Science, Queen Mary University of Lo...

∗Department of Neuroinflammation, Neuroimmunology Group, Institute of Neurology, Queen Square, London, WC1N 3BG, United Kingdom. Fax: +44 207 837 8553, E-mail: [email protected] †BioMérieux, R&D Department, Neurological Programs, Bat.07 Pieèce 112, Chemin de L’Orme, F–69290 Marcy L’Etoile, France ‡Department of Neuroinflammation, MRI Group, Institute of Neurology, Queen Square, London, WC...

This paper presents a technique of staganography where hiding of secret image done by LSB substitution and N-Queen matrix act as key. Key used to indicate pixel position of Cover image where substitution will take place.Memomy complex (Memory strand and DNA stickers) used to represent N-Queen matrix so that key isn’t understandable to unauthorized user. Size of NQueen matrix relate with no. of ...

most of the patients imagine that chest pain is not sign of heart attack. but, may be pain is not sign of heart attack. pain source may be from pulmonary, stomach, intestinal, psychologic or musculoskeletal problems. from these factors, when two or more factors combine to each other, similar signs are happen. all of these factors harden diagnosis of chest pain reason. only with separation of pe...

In polygynous (multiple queens per nest) ants, queen dispersal is often limited with young queens being recruited within the parental colony. This mode of dispersal leads to local resource competition between nestmate queens and is frequently associated with extremely male-biased sex ratios at the population level. The queen-replenishment hypothesis has been recently proposed to explain colony ...

Reproductive cooperation confers benefits, but simultaneously creates conflicts among cooperators. Queens in multi-queen colonies of ants share a nest and its resources, but reproductive competition among queens often results in unequal reproduction. Two mutually non-exclusive factors may produce such inequality in reproduction: worker intervention or queen traits. Workers may intervene by favo...

Colonies of the primitively eusocial wasp Ropalidia marginata consist of a single egg layer (queen) and a number of non-egg-laying workers. Although the queen is a docile individual, not at the top of the behavioral dominance hierarchy of the colony, she maintains complete reproductive monopoly. If the queen is lost or removed, one and only one of the workers [potential queen (PQ)] becomes hype...

Social evolution in honey bees has produced strong queen-worker dimorphism for plastic traits that depend on larval nutrition. The honey bee developmental programme includes both larval components that determine plastic growth responses to larval nutrition and nurse components that regulate larval nutrition. We studied how these two components contribute to variation in worker and queen body si...

The sporadic death of queen palms in one county in Florida was first brought to our attention in 2003. Recent conversations throughout the southern half of the state where queen palms are grown indicate the problem was observed in other counties at approximately the same time, which means we cannot blame the 2004 hurricane season for the spread of the problem. While initially less than 1% of th...

In an ant colony, the queen is the single reproducer and can interact with her workers via pheromones and cuticular compounds. However, in most species queen importance is not restricted to reproduction: in the initial development of the colony, her presence might play a more important role. In this work, we studied the effects of queen absence on workers behavior displayed in the foraging aren...