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Revolutionizing malaria diagnosis using artificial intelligence



Revolutionizing malaria diagnosis using artificial intelligence

Aerial platforms for transporting laser beams to distant parts of the Earth

The Defense Advanced Research Projects Agency (DARPA), affiliated with the US Department of Defense, announced last September that it had selected 3 teams. To design aerial power relay systems required in this…type of projects.

Light energy in the atmosphere

One can imagine how laser beams interact with solar cells, and how the energy transfer process is carried out. A laser directs its rays into a network of solar cells, whose job it is to convert light into electricity.

DARPA’s project is not aimed at providing electricity to homes, but rather to provide power to places where it is difficult, expensive or dangerous to build it. Because its infrastructure requires the export of fuel or batteries.

In an interview reported by the website of the American magazine “Electrical Engineers”, Paul Jaffe, an electronic engineer who oversees the “Continuous Wireless Optical Energy Transmission” initiative at DARPA, said: “Energy supports everything we do, even in defense operations. A wireless power network can reduce logistics and deliver power in a more flexible, efficient and scalable manner.

DARPA selected three teams to design and build the energy transfer systems: RTX in Arlington, Virginia; “WoDraper” in Cambridge, Massachusetts; and Beamco in Orlando, Florida. The agency set a goal for the three groups: launch laser beams into orbital systems capable of sending these beams to their targets.

The project prefers to use optical or infrared rays, whose relatively short wavelengths require small relays that can be easily installed on aerial platforms.

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Aerial platforms

Jaffe says it’s too early to tell how the three teams’ approaches differ. But there are several strategies that teams can adopt in designing atmospheric arrays to send light to its targets, such as reflection, diffraction, refraction, or a combination of the three.

The first phase of the initiative requires teams to develop theoretical designs for air platforms capable of absorbing a portion of the energy released. This strategy will lead to the design of smaller and less expensive aircraft in the future, as the new platforms will help drastically reduce the vehicle’s engine and fuel consumption. Instead of requiring trips to refuel or recharge, this type of vehicle can harvest energy from the emitted energy.

The second step involves integrating relay technologies into cabins carried on conventional aircraft. In the third and final phase, the agency’s goal is to place the laser at a ground facility to send a 10-kilowatt beam toward a horizontal ground receiver 200 kilometers away, using 3 air relays.

“This will demonstrate that we have a way to deliver energy over very long distances to places that are currently difficult to reach,” says Jaffe.

The principle of energy transfer has not achieved much till date. For example, the first successful attempt to send laser energy into space in 2023 led by the US Naval Research Laboratory on the International Space Station only extended a distance of 1.45 meters.

“The current focus will be on expanding energy transfer to an order of magnitude twice that demonstrated to date,” Jaffe points out.

Implementation challenges

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The principle of energy transfer may be simple, but the challenges facing its application on the ground are many, but recent technological advances may be close to achieving it.

Jaffe explains that the largest losses encountered in power transmission tests “often occur at the carrier level.” However, the development of laser technology in the last decade has not only contributed to the development of more efficient transmissions, but also to the improvement of broadcast quality. “Only the quality of the broadcast determines its level of concentration. The more focused the broadcast, the better the energy it can deliver,” emphasizes the engineer.

Additionally, advances in lidar technology (a laser device for tracking and measuring distances) used in automated vehicles have contributed to the development of photodiodes that are more effective at converting light into electricity. “Laser energy conversion can be as high as 50 percent, and at low temperatures as high as 75 percent,” explains Jaffe.

In previous techniques, each relay system in power transmission networks received light, converted it to electricity, and then used that electricity to charge a laser and direct it to the next point, but these conversion steps were ineffective. In contrast, the new scheme aims to direct light from one relay to another using optical techniques, avoiding switching losses.

Finally, we still don’t know how effective energy transfer efforts will be, especially since energy transfer testing on the International Space Station showed an efficiency of no more than 11 percent between the nodes of the network.

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Amiri Diwan confirms stability of Kuwait Emir’s health… And prosecution threatens to prosecute those who spread rumors about “the arrangement of the ruling house”.



Amiri Diwan confirms stability of Kuwait Emir’s health… And prosecution threatens to prosecute those who spread rumors about “the arrangement of the ruling house”.

United Arab Emirates (CNN) — Kuwaiti Emir Sheikh Nawaf Al-Ahmad Al-Jaber Al-Sabah’s health condition was confirmed on Saturday by the Minister of Emirati Diwan Affairs, Sheikh Muhammad Al-Abdullah Al-Sabah. It is stable, thanks to God Almighty,” Kuwait News Agency reported. “Kona.”

The minister added: “We pray to the Almighty God for a speedy recovery to the Emir of the country and to grant him good health and complete well-being.”

The Minister of Amiri Diwan Affairs said on Wednesday that the health of the Emir of Kuwait is stable and he is still receiving the necessary treatment.

Earlier, the Amiri Diwan minister said the Kuwaiti emir “entered the hospital to receive treatment and undergo a medical examination following a health condition”.

For its part, the Kuwaiti Public Prosecution warned in a statement on Saturday against “taking decisive action and filing criminal charges against every individual, group, platform, media, radio station or any organization that publishes or addresses anything related to the health of the Emir or the arrangement of the ruling house.”

The Kuwait Public Prosecution added: “We have been monitoring many false reports and shocking lies in the media, and by individuals on visual, audio and print media platforms, about the health of the Emir of the country or the arrangements of the ruling house. According to Kuna.

Rumor mongers have used the word as a weapon to spread poison in the society using flimsy pretexts of freedom of expression, good intentions and fear, forgetting the harmful effects of rumours. According to the Kuwaiti Agency, there is more than a raging plague.

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After trying it…new anti-obesity drug alert



After trying it…new anti-obesity drug alert

However, Pfizer announced its intention to develop a modified version of the drug “Danoglipron”.

This drug belongs to a new class of successful treatments based on a component such as the gastrointestinal hormone glucagon or GLP-1 (GLP-1).GLP-1This leads to a feeling of fullness and weight loss.

“Danoglibron” differs from competing drugs already on the market in that it is not given by injection, but is given orally in the form of tablets.

During the clinical trial, Pfizer tested taking these pills twice a day, but said it wanted to focus on a new once-a-day formulation.

The clinical trial included a few hundred obese participants without type 2 diabetes.

Pfizer explained that the side effects in this trial were similar to those that can occur with this type of drug, but “it is noteworthy that their rates were high” because “cases of nausea reached 73 percent, vomiting reached 47 percent, and diarrhea reached 25 percent.”

More than half of the participants who received this drug discontinued treatment.

However, “Danoglipro” has been shown to lead to weight loss between 8 percent and 13 percent over 32 weeks or between 5 percent and 9.5 percent over 26 weeks.

A report quoted Pfizer senior executive Michael Tolston as confirming that “an improved once-daily formulation of tanoglipron could play an important role in the treatment of obesity.”

The highly lucrative anti-obesity drug market is currently dominated by the Danish “Novo Nordisk” group with its drug “Vecovi” and the American “Eli Lilly” company “Zebound”. America last month.

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5 Foods That Can Help You Stay Positive and Fight Depression, Especially Eggs



5 Foods That Can Help You Stay Positive and Fight Depression, Especially Eggs

By Anas al-Banna

Saturday, December 2, 2023 at 12:00 AM

With winter approaching and the seasons fluctuating, many are depressed, especially by things including rain and lack of sunrise, the website says “Health scenesWe show how diet can improve mental health and which foods can help manage it Depression By improving a person’s mood.

The connection between food and your mood

If you eat healthy, you will be healthy; Otherwise, you will have health problems, and when it comes to mental health, nutrition plays an important role.

Foods that help fight depression

Add these foods to your diet to fight depression:

1. Walnut

Walnuts are one of the most important nuts for brain health because they help improve cognitive health. Their high levels of antioxidants and vitamins improve mental alertness and fight depression..

2. Avocado

Avocados contain healthy fats that help improve cognitive function, memory, and concentration. Apart from that, avocados also contain tryptophan, which helps increase levels of serotonin, which is associated with the hormone of happiness.

3. Berry

The high levels of antioxidants in berries help protect the brain from stress, anxiety and depression, and have been shown to improve mood and cognition..

4. Broccoli

Broccoli helps keep the memory sharp due to its high amount of choline, and helps reduce depression and support a good mood. .

5. Eggs

Eggs are rich in choline, which is one of the most important neurotransmitters in managing stress and depression..

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