1. A method of enhancing learning in a mammal comprising administering to the mammal a compound having a formula selected from the group consisting of:
wherein each R is independently selected from \u2014OH, \u2014OR1, \u2014SH, \u2014SR1, \u2014NR2R2, and a carbonyl oxygen; and R* is hydrogen or \u2014OH; and wherein R1 is a C1 to C4 alkyl; and R2 is a C1 to C4 alkyl.
2. The method of claim 1, wherein the amount of the compound administered is from about 1.0 to 15.0 mgkg of body weight.
3. The method of claim 1, wherein the amount of the compound administered is from about 3.0 to 10.0 mgkg of body weight.
4. The method of claim 1, wherein the mammal has a healthy brain.
5. The method of claim 1, wherein the compound is administered up to seven days before the learning.
6. The method of claim 1, wherein the compound is administered up to two hours after the learning.
7. A method for treating memory dysfunction in a mammal comprising administering to the mammal a compound having a formula selected from the group consisting of:
wherein each R is independently selected from \u2014OH, \u2014OR1, \u2014SH, \u2014SR1, \u2014NR2R2, and a carbonyl oxygen; and R* is hydrogen or \u2014OH; and wherein R1 is a C1 to C4 alkyl; and R2 is a C1 to C4 alkyl.
8. The method of claim 7, wherein the memory dysfunction is associated with a decrease in the efficiency of synaptic transmission or loss of functioning synapses in the hippocampus.
9. The method of claim 7, wherein the amount of the compound is from about 1.0 to 15.0 mgkg of body weight.
10. The method of claim 9, wherein the amount of the compound is from about 3.0 to 10.0 mgkg of body weight.
11. A composition comprising a physiologically acceptable carrier and a compound having a formula selected from the group consisting of:
wherein each R is independently selected from \u2014OH, \u2014OR1, \u2014SH, \u2014SR1, \u2014NR2R2, and a carbonyl oxygen; and R* is hydrogen or \u2014OH; and wherein R1 is a C1 to C4 alkyl; and R is a C1 to C4 alkyl.
12. The composition of claim 11, wherein the physiologically acceptable carrier is an aqueous or non-aqueous sterile vehicle.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A network comprising two networking devices connected via a self-configurable asymmetric link;
the networking devices configured to connect multimedia sink and multimedia source devices; and
the networking devices further configured to set direction of the self-configurable asymmetric link based on a function describing desired connections between the multimedia sink and multimedia source devices.
2. The network of claim 1, wherein the self-configurable asymmetric link is a wired link designed to support uncompressed video.
3. The network of claim 1, wherein the self-configurable asymmetric link is a wireless link designed to support uncompressed video.
4. The network of claim 1, wherein default direction of the self-configurable asymmetric link maximizes the number of multimedia source devices that can potentially be connected to a selected multimedia sink device.
5. The network of claim 1, wherein default direction of the self-configurable asymmetric link maximizes the number of available multimedia sink and multimedia source devices.
6. The network of claim 1, wherein at least one of the networking devices is a wired switch or a wired daisy-chain device.
7. The network of claim 1, wherein the direction of the self-configurable asymmetric link is set based on a weighted function of the multimedia sink and multimedia source devices, whereby different end-devices may feature different weights.
8. The network of claim 7, wherein end-devices of the same type are weighted substantially the same.
9. The network of claim 7, wherein the weights are based on usage statistics.
10. The network of claim 1, wherein the set direction conforms with a most common network topology.
11. A method for setting the direction of a self-configurable asymmetric link based on end-devices communicating via the self-configurable asymmetric link, the method comprising:
obtaining a list of the end-devices communicating via the self-configurable asymmetric link; and
setting the direction of the self-configurable asymmetric link to maximize a predefined function describing desired connections between the end-devices.
12. The method of claim 11, further comprising assigning weights to the end-devices; wherein the predefined function takes the weights into account.
13. The method of claim 12, further comprising monitoring usage statistics and assigning the weights based on the usage statistics.
14. The method of claim 11, wherein the end-devices comprise multimedia source and multimedia sink devices; and further comprising: selecting a multimedia sink device, and using the predefined function to maximize the number of multimedia source devices that may be connected to the selected multimedia sink device.
15. The method of claim 11, further comprising maximizing the number of available end-devices using the predefined function.
16. The method of claim 11, wherein the set direction conforms with a most common network topology.
17. A network comprising two networking devices connected via a self-configurable asymmetric link;
the networking devices configured to connect multimedia sink and multimedia source devices; and
the networking devices further configured to set direction of the self-configurable asymmetric link based on usage statistics of the self-configurable asymmetric link.
18. The network of claim 17, wherein the usage statistics are measured by at least one of the networking devices.
19. The network of claim 17, wherein the usage statistics are measured by a control point.
20. The network of claim 17, wherein the usage statistics are gathered from one or more of the multimedia sink or multimedia source devices.
21. A method for setting the direction of a self-configurable asymmetric link according to usage statistics, comprising:
obtaining usage statistics of a network comprising multimedia end-devices and two networking devices, wherein the networking devices are connected by a self-configurable asymmetric link; and
setting the direction of the self-configurable asymmetric link based on the usage statistics of the network.
22. The method of claim 21, wherein the usage statistics are measured by at least one of the networking devices.
23. The method of claim 21, wherein the usage statistics are measured by the self-configurable asymmetric link.
24. The method of claim 21, wherein the usage statistics are obtained from a control point.
25. The method of claim 21, wherein the usage statistics are obtained from one or more of the end-devices.