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Smartphone Samsung Galaxy W with 7" screen 1280x720

03.06.2014

Samsung Electronics has introduced the largest smartphone in its line - Samsung Galaxy W. The device is equipped with a display with a diagonal of 7 inches.

Despite the fact that the size of the Galaxy W display allows you to call the device a tablet, the vendor positions it as a telephone device - with the ability to make calls and use SMS. The design of the device is designed so that the user can hold it and make calls with one hand.

The display resolution of the Galaxy W is 1280 x 720 pixels (16:9 aspect ratio). The device has a 4 GHz quad-core processor, 1,2 GB RAM, 1,5 GB of internal memory (expandable), 16 MP camera, 8 mAh battery, LTE support and will appear on the market with OC Android 3200 Jelly Beans.

Prior to this, the largest Samsung smartphone was considered the Galaxy Mega 6.3, which has a 6,3-inch screen (Galaxy Mega is a separate line of Samsung "tablet phones"). The Galaxy W also broke the Sony Xperia Z Ultra's record of 6,44 inches.

The Samsung Galaxy W will be available in Korea for 499,4 won, which is about $487. The novelty will be available in black, white and red.

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Sweet death for mosquitoes 06.01.2018

ISCA Technologies, a US company, said it has developed three simple, low-cost ways to fight malarial mosquitoes using compounds called signaling pheromones and other substances released by organisms to control the behavior of other organisms. ISCA's "cocktails" of signaling compounds produced by plants and animals lure harmful insects and kill them with insecticides. This method works more effectively on mosquitoes and allows you to spray fewer insecticides.

Mosquitoes are not only annoying, they spread the agents of devastating diseases, including the malaria and Zika viruses that have caused pandemics. In 2015 alone, 212 million people contracted malaria and an estimated 429 died, mostly in sub-Saharan Africa. Wealthy countries like the US have effective mosquito control tools, but many developing countries cannot afford these tools.

Smell-based technologies are very promising, but there are still many problems to be solved, in particular, to take into account the possibility of adaptation of mosquitoes, which will allow them not to be tempted by these signaling compounds.

To begin with, the so-called. "signature blend" (signature blend), which the company ironically called the "Trojan cow", consisting of signal compounds that mimic the smell of a person, which mosquitoes naturally adore. With a false human odor, this mixture can be sprayed on livestock and other pets. Mosquitoes, attracted by the smell, will drink animal blood, not human blood. And if these animals are injected with drugs that are toxic to mosquitoes (for example, typical drugs for worms), bloodsuckers will die.

Further, there is also a mixture of a pheromone that attracts adult females and an attractant that lures their larvae. It can be sprayed before rain in potential mosquito breeding areas. When in contact with water, this mixture releases pheromones that encourage females to lay eggs in the area it has treated. The hatched larvae eat this attractant, which contains live bacteria Bacillus thuringiensis israelensis, and these bacteria kill mosquito larvae without harming other insects, in particular bees and butterflies.

Finally, the third remedy takes into account that disease-carrying mosquitoes also need sugar in addition to blood. ISCA researchers have studied a range of plant-derived signaling compounds and created a mixture that smells like nectar. The company plans to spray this mixture along with pesticides under the roofs of houses or near the fences of the villages. Mosquitoes, attracted by these sweet-smelling traps to the meal, will meet a sweet death. Somewhere even romantic.

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