Sleep is characterized by a loss of consciousness, which has been attributed to a breakdown of functional connectivity between brain regions. Global field synchronization (GFS) can estimate functional connectivity of brain processes. GFS is a frequency-dependent measure of global synchronicity of multi-channel EEG data. Our aim was to explore and extend the hypothesis of disconnection during sl...

A fundamental problem that confronts peer-to-peer applications is to efficiently locate the node that stores a particular data item. We propose a new scalable Peer-to-Peer overlay network, GFS-Btree, which is resembling a Btree network. By adding additional linkages to Btree, GFS-Btree can relieve the congestion at the root and the other branch nodes. The events of a node joining and leaving th...

Post-quantum cryptography has attracted much attention from worldwide cryptologists. In ISIT 2010, Kuwakado and Morii gave a quantum distinguisher with polynomial time against 3-round Feistel networks. However, generalized Feistel schemes (GFS) have not been systematically investigated against quantum attacks. In this paper, we study the quantum distinguishers about some generalized Feistel sch...

The role of growth factors (GFs) in controlling the biology of human hematopoietic stem cells (HSCs) remains limited by a lack of information concerning the individual and combined effects of GFs directly on the survival, Mitogenesis, and regenerative activity of highly purified human HSCs. We show that the initial input HSC activity of such a purified starting population of human cord blood ce...

We previously demonstrated that serotonin (5-HT) and 5-HT2A receptor (5-HT2AR) levels in platelets were up- or down-regulated after myocardial infarction (MI) associated with depression. In this study, we further evaluated the effects of pretreatment with ginseng fruit saponins (GFS) on the expression of 5-HT and 5-HT2AR in MI with or without depression. Eighty Sprague-Dawley (SD) rats were tre...

In this paper, we design and implement a distributed file system with multi-source data replication ability, called Grid File System (GFS), for Unix-based grid systems. Traditional distributed file system technologies designed for local and campus area networks do not adapt well to wide area grid computing environments. Therefore, we design GFS file system that meets the needs of grid computing...

Fuzzy controllers are a popular method for animated character perception and control. A drawback of fuzzy systems is that time intensive manual calibration of system parameters is required. We introduce a new Genetic-Fuzzy System (GFS) that automates the tuning process of rules for animated character steering. An advantage of our GFS is that it is able to adapt the rules for steering behaviour ...

Nachef et al [12] used differential cryptanalysis to study four types of Generalized Feistel Scheme (GFS). They gave the lower bound of maximum number of rounds that is indistinguishable from a random permutation. In this paper, we study the security of several types of GFS by exploiting the asymmetric property. We show that better lower bounds can be achieved for the Type-1 GFS, Type-3 GFS and...

PURPOSE Connective tissue growth factor (CTGF) appears to play a significant role in mediating fibrosis in several tissues. To gain further understanding of the role of CTGF in the scar formation that occurs after glaucoma filtering surgery (GFS), experiments were performed in a rabbit model. METHODS . Three experiments were performed: (1) CTGF and transforming growth factor (TGF)-beta expres...

Mouse fetal ovaries were cultured to investigate germ cell development in the presence of a combination of the growth factors (GFs) stem cell factor, insulin-like growth factor-1 and leukaemia inhibitory factor. Ovaries were isolated from fetal mice at 13 and 14 days post-coitum (dpc) and cultured to the equivalent of 17 dpc. Culture conditions comprised minimal essential medium-alpha plus 5% f...