Wake Up

Jacob Goldstein and David Kestenbaum of NPR's Planet Money tell the story of two guys who decided that the CEO of a small tool company was paid too much and wanted to wake people up to that fact - They wanted to cut the CEO's pay. The two people happened to be investors in the tool company. It turns out if you think CEOs are paid too much, it's guys like this with money to invest in stocks that you want on your side. Planet Money is a production of NPR News. (15 minutes)

wake up

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Using the sleep calculator, you can easily tell it when you want to wake up and it will show you a variety of times to fall asleep and how many sleep cycles you will achieve. Keep scrolling for our wake calculator!

If you know what time you are falling asleep, and want to know the best time to wake up, look no further! Simply add your bedtime into the wake calculator, and it will give you several options for a wake up time and tell you how many sleep cycles you will achieve.

You can supplement the traditional wake-up packet method by using the wake-up proxy client settings. Wake-up proxy uses a peer-to-peer protocol and elected computers to check whether other computers on the subnet are awake, and to wake them if necessary. When the site is configured for Wake On LAN and clients are configured for wake-up proxy, the process works as follows:

Computers with the Configuration Manager client installed and that aren't asleep on the subnet check whether other computers on the subnet are awake. They do this check by sending each other a TCP/IP ping command every five seconds.

Because it's possible that a computer might not respond because of a reason other than it's asleep (for example, it's turned off, removed from the network, or the proxy wake-up client setting is no longer applied), the computers are sent a wake-up packet every day at 2 P.M. local time. Computers that don't respond will no longer be assumed to be asleep and will not be woken up by wake-up proxy.

To support wake-up proxy, at least three computers must be awake for each subnet. To achieve this requirement, three computers are non-deterministically chosen to be guardian computers for the subnet. This state means that they stay awake, despite any configured power policy to sleep or hibernate after a period of inactivity. Guardian computers honor shutdown or restart commands, for example, as a result of maintenance tasks. If this action happens, the remaining guardian computers wake up another computer on the subnet so that the subnet continues to have three guardian computers.

During this process, the IP-to-MAC mapping for the sleeping computer remains the same. Wake-up proxy works by informing the network switch that a different network adapter is using the port that was registered by another network adapter. However, this behavior is known as a MAC flap and is unusual for standard network operation. Some network monitoring tools look for this behavior and can assume that something is wrong. Consequently, these monitoring tools can generate alerts or shut down ports when you use wake-up proxy.

When a manager computer sees a new TCP connection request for a sleeping computer and the request is to a port that the sleeping computer was listening on before it went to sleep, the manager computer sends a wake-up packet to the sleeping computer, and then stops redirecting traffic for this computer.

If you have a separate team that is responsible for the network infrastructure and network services, notify and include this team during your evaluation and testing period. For example, on a network that uses 802.1X network access control, wake-up proxy will not work and can disrupt the network service. In addition, wake-up proxy could cause some network monitoring tools to generate alerts when the tools detect the traffic to wake-up other computers.

Clients must be enabled for wake-up proxy by using client settings. Although wake-up proxy operation does not depend on hardware inventory, clients do not report the installation of the wake-up proxy service unless they are enabled for hardware inventory and submitted at least one hardware inventory.

Network adapters (and possibly the BIOS) must be enabled and configured for wake-up packets. If the network adapter is not configured for wake-up packets or this setting is disabled, Configuration Manager will automatically configure and enable it for a computer when it receives the client setting to enable wake-up proxy.

If a computer has more than one network adapter, you cannot configure which adapter to use for wake-up proxy; the choice is non-deterministic. However, the adapter chosen is recorded in the SleepAgent_@SYSTEM_0.log file.

Decide whether to use subnet-directed broadcast packets, or unicast packets, and what UDP port number to use. By default, traditional wake-up packets are transmitted by using UDP port 9, but to help increase security, you can select an alternative port for the site if this alternative port is supported by intervening routers and firewalls.

If you chose to wake up computers by sending traditional wake-up packets, you must decide whether to transmit unicast packets or subnet-direct broadcast packets. If you use wake-up proxy, you must use unicast packets. Otherwise, use the following table to help you determine which transmission method to choose.

It is high time for the members of the European Union to wake up and behave as countries indirectly at war. They are better off helping Ukraine to defend itself than having to fight for themselves. One way or another, the internal contradiction between being at war and remaining committed to fiscal austerity has to be eliminated. Where there is a will, there is a way.

For a cheaper alternative to a wake-up light, smart light bulbs are easy to add to the lamp on your nightstand or any other light fixture. Once the bulb is screwed into your lamp and connected to your Wi-Fi, you can use its app to create a schedule of wake-up times and even select what color you want the light to be to help you wake up with ease. Several smart bulbs also have a gradual wake-up functionality that mimics sunrise, similar to the way a wake-up light works.

Several Wirecutter staffers have had success using Philips Hue smart bulbs (our current upgrade pick) as a wake-up light. Under the Automations tab in the Hue app, click on Wake Up with Light and choose your wake-up time; your bulb will start to brighten around 30 minutes before, with a fade duration of 30 minutes. An even cheaper alternative is the Wyze Bulb Color (our current top pick), an A19 bulb that delivers bright light and excellent colors. It also has a Sleep Mode that can simulate sunrise and sunset at set times of day.

If you've been having frequent disturbing dreams that awaken you, you're not alone. You may have what's known as a nightmare sleep disorder. This disorder makes you more likely to have intense dreams associated with negative feelings.

Patients with wake-up strokes account for approximately 1 in 5 individuals presenting with an acute ischemic stroke. However, they are commonly excluded from acute stroke treatment. This article reviews the current understanding of wake-up strokes. A comparison of wake-up and awake-onset strokes demonstrated that they are physiologically, clinically, and radiologically similar. Use of advanced CT and MRI techniques may help extend acute stroke treatment options to patients with wake-up stroke.

circadian rhythmCT perfusiondiffusion-weighted imagingDWI-fluid-attenuate inverse recovery mismatchischemic strokeMR perfusionobstructive sleep apneaperfusion-weighted imagingperfusion- and diffusion-weighted imaging mismatchwake-up stroke 041b061a72