Attention!!! read to everyone!!! how people drown. What a person feels when he dies: interesting facts about the last minutes of life

Jumped off the side fully dressed and quickly swam through the water. A former lifeguard, he focused his eyes on the target, heading straight for the owners of the yacht, who were swimming between the yacht and the shore. “He seems to think you are drowning,” the husband said to his wife. They splashed and she screamed, but now they were just up to their necks in the water. "We're all right, what is he doing?" the wife asked a little annoyed. "We're all right!" - shouted the husband, waving his hand to the captain, but he continued to swim. "From the road!" he barked as he swam past the stunned owners of the yacht. Directly behind them, a few meters away, their nine-year-old daughter was drowning. Already raised above the water in the arms of the captain, she burst into tears: "Daddy!"

How was the captain able to understand from a distance of tens of meters what his father could not distinguish from just two? When a person drowns, he does not act violently, splashing, calling for help, which most people might expect. The captain was taught to recognize drowning people by experts and years of experience. The father, on the other hand, knew what a drowning person looked like from TV shows. If you're spending time on or near water (and that's all of us), make sure you and the rest of the crew know what to expect when a person enters the water. Until the moment when the daughter screamed "Daddy", she did not make a sound. Swimmers and Coast Guard rescuers would not be surprised by this story. A drowning person is almost always deceptively quiet. In life, you rarely see how a drowning person waves his arms, splashes, screams, as they show in dramatic programs on TV and in newspapers.

The instinctive response to the threat of drowning, so named by Dr. Francesco Pia, is what a person does to avoid real or perceived suffocation in the water. And outwardly it doesn't look like what people expect. The person splashes a little, does not wave, does not shout and does not call for help in any way. To understand how quiet and seemingly inconspicuous a drowning person can be, think about it: this is the second largest reason accidental death children under 15 years old (immediately following car accidents) - out of about 750 children who will drown next year, about 735 of them will happen within a few meters of their parents or other adults. In 10% of these cases, adults will look at what is happening without having a clue what really happened. In the article “A drowning person is not at all like a drowning person,” Dr. Pia talks about the following instinctive actions of a drowning person:

1. Except in the rarest of cases, drowning people are physiologically unable to call for help. The respiratory system is for breathing. Speech is a secondary function. A person must breathe in order to be able to speak.

2. The mouth of a drowning person either sinks or appears above the water. The mouth of a drowning person is not long enough above the surface of the water to give him the opportunity to inhale, exhale and call for help. When the mouth of a drowning person is above the surface, he only has time to exhale and inhale again, and again begins to sink.

3. A drowning person cannot wave and call for help. Nature instinctively makes a person spread his arms and press them to the surface of the water. Pressing the hands to the surface of the water allows the drowning person to balance their body to raise their mouth above the water and breathe.

4. According to the dictates of instincts, a drowning person cannot freely control the movement of his hands. A physiologically drowning person who is at the surface of the water cannot stop drowning and make controlled movements, such as wave for help, move towards a lifeguard, or reach for lifesaving equipment.

5. From the beginning to the end of the "instinctive response to the threat of drowning", the human body is in the water directly, there are no visible kicks. Without the help of a trained rescuer, these drowning people can be on the surface for 20 to 60 seconds before the moment of immersion.

6. This does not mean at all that the person who calls for help or waves his hands is not in trouble - they are in a water disaster. This stage is not always present before the response to the threat of drowning and does not last long, but unlike a real drowning, these people can contribute to their salvation. They can grab lifebuoys.

Look out for the following symptoms of a drowning person:

• Head deep in the water, mouth on the surface of the water

• Head thrown back, mouth open

• Eyes empty and glassy, ​​unable to focus

• Eyes closed

• Hair on forehead and eyes

• Does not use legs, stays vertical in water

• Hyperventilates the lungs and opens the mouth wide

• Tries to swim in a certain direction but won't budge

• Tries to roll over on his back

So what if a crew member falls overboard and everything seems to be fine, you can't be sure. Sometimes the surest sign that a person is drowning is that they don't look like it. It may seem that they are floating and looking at the deck. How to know for sure? Ask: "Is everything all right?" If they can somehow answer, most likely, everything is in order. If they just stare back blankly, they probably only have 30 seconds left to escape. And for parents: remember that children in the water make sounds. If they are quiet, come and find out why.

A wonderful time is approaching - summer. Someone will go to rest on the sea, someone - to swim in the river.

But there is a serious danger here. You can overestimate your strength yourself, or get into a strong current, or you can not notice how happy another person will drown.

The statistics on drowned children are shocking - sink next summer approximately 750 children,
with approximately 375 drowning less than 22 meters from their parents.
Out of ten drowned children, one will drown right in front of their parents who do not understand what is happening
(Source: US Centers for Disease Control and Prevention).

READ THE FOLLOWING TEXT AND TELL YOUR FAMILY AND FRIENDS!

The danger of suffocation with water causes the so-called drowning man's instinctive reaction, so named by PhD Francesco A. Pia. And this reaction does not look at all like most people think.
With rare exception, drowning people are physiologically unable to call for help. Breathing is the main function of the respiratory system, and speech is an additional one. To speak, you need to be able to breathe.The mouth of a drowning person periodically disappears under the surface of the water and reappears. The time that the mouth is above the water is not enough to exhale, inhale and call for help. The drowning man only has time to exhale and inhale quickly.

Drowning people cannot wave their arms to call for help.. Their instincts drive them to spread their arms out to the sides and push against the water, trying to lift their body up so that their mouth is above the surface so they can take another breath. A drowning person is physiologically unable to stop making instinctive movements and begin to make meaningful ones, for example, waving his arms, moving towards a rescuer, or grabbing rescue devices.

As long as the instinctive reaction of the drowning man continues, the human body remains upright in the water, without the slightest sign of supporting movements of the legs. If not rescued, a drowning person can survive in the water for 20 to 60 seconds before being completely submerged.

This does not mean that the people thrashing the water and calling for help are not in trouble - they are in a panic and really need help. Panic, which does not always precede the instinctive reaction of the drowning person, does not last very long. But on the other hand, people in this state, in contrast to the instinctive reaction of a drowning person, can still help the rescuer, for example, grab a life buoy.

So, the signs that a person is drowning:

• Holds head low in water, mouth at water level;


• Tilts head back, opens mouth;


• Eyes glassy and empty, not focusing;


• Eyes closed;


• hair on the forehead or on the eyes;


• Doesn't use legs stands vertically in the water;


• Breathing very fast and shallow, or gasping for air;


• Tries to roll over onto his back;


• Tries to get out of the water as if on a rope ladder, but movements are almost all the time under water.

Sometimes the easiest sign that a person is drowning is that they don't look like they're drowning. It would seem that he is simply balancing in the water, looking at the boat, or at other people.

THE BEST WAY TO CHECK - Ask if he's ok.

If they answer you, everything is most likely in order.
If the answer is silence and a blank stare, you may have less than 30 seconds to save him.

And one more thing, to parents: when children play in the water, they make noise. If the noise subsides, come and find out why.

The captain jumped out of the cockpit in his clothes and swam as fast as he could. In the past, a lifeguard, he did not take his eyes off the victim and swam directly to the couple, splashing between his boat and the shore. “I think he thought you were drowning,” the husband said to his wife. They had just splashed and she was screaming, but right now they were up to their necks in water on the shallows. “What is he doing? We're fine," she said irritably. "We are fine!" shouted the husband, waving to the captain to turn around and swim back.

But the captain continued to swim with all his might and only barked: "Out of the way!" drawing level with the stunned couple. Directly behind them, less than three meters away, their nine-year-old daughter was drowning. Already above the water, safe in the hands of the captain, she burst into tears: "Daddy!"

How did the captain understand from fifteen meters what his own father did not understand from three? Drowning is not floundering in the water and screaming for help, as many people think. The captain learned to recognize drowning in rescue courses and had a lot of experience. As for the girl's father, he imagined drowning the way it is shown in the movies.
2.
My husband and I sat on the shore and watched the girl drown. Her parents rested nearby and also calmly watched their daughter drown. And only when the boy, who was bathing with her, grabbed her and began to pull her out of the water, dad realized what was happening and rushed to them, and mom gasped: "I thought she was playing around ...".On the Dynamo beach, on July 2, good parents and friends were sitting near us, and FOLLOWED the bathing children: a little girl with a circle, their daughter of 10-11 years old and a boy of about 12 years old. The older girl stood up to her shoulders. As I later heard from their conversations, the wave pushed her away from the shore and the bottom suddenly disappeared from under her feet ...Girls, we DO not understand that something is wrong. Everything was quiet, without screams, it seems that she was just splashing, as her mother said - "indulging". The boy was the first to understand the trouble, he was a head taller than her, grabbed it and raised it above the water. Then dad ran up and carried his daughter to the shore.

She sobbed and shook, hugging her mother, for about ten minutes exactly. As long as we were there, she no longer approached the water, the fright was so strong.
And these are not thumping parents, but looking after the children, a good, right family. NOT UNDERSTOOD. And nothing attracted our attention either, although they were almost the only children bathing and we sat facing them.
3.
Once I went to a pioneer camp, swam in the so-called paddling pool - a paddock in the water with a bunch of children who jump, splash and scream. Quite by accident, I saw a girl nearby silently go under the water, gasping for air. I pulled her out, but the counselor did not understand that she was drowning, she thought that we were playing like that. Children need to be taught not to play lifeguards in the water.
4.
I know very well how children drown, because I myself almost drowned in childhood. There is simply no strength to scream, you only have time to take a sharp breath when you emerge. I miraculously grabbed onto my sister, and at the same time, I didn’t know that it was her, I didn’t care, just to get out. And she was nearby and the water was full of people. And it seemed shallow (this is up to my neck), but I got a hole and now ...
5.
I saw this in Tel Aviv a week ago. I didn't understand either. But the man, who was closer to the girl than me, quickly swam up to her and helped her get ashore.
6.
As a child, I myself went to the bottom a couple of times, but my mother and grandmother quickly got their bearings, thank God! I remember that fear enslaves, you can’t do anything.

7.
Many years ago, my classmate drowned in front of her friends and a crowd of adults.
8.

Yes, it's still there. I drowned as a child, in a similar way. The bottom was gone from under my feet, I jumped out of the water to breathe air and went under the water, there was no way to scream. My parents and their friends somehow turned their backs to the river and none of the adults saw me. A familiar boy was nearby, but he was so frightened that it did not occur to him to call his parents. It’s good that he didn’t stretch out his hand to me, otherwise they would have drowned me together. But I was lucky, the current carried me a little more and I was stranded. Parents never understood...
9.
She also drowned. At 6 years old. We, the preparers, were taken in a group to the pool. This is how they used to learn to swim: they threw them into the water a meter and a half from the stairs and helped them get to it with the help of a long stick. From the memories: complete paralysis, bubbles before the eyes, disorientation, loss of any will and considerations, animal horror ...
10.

Saved a guy five years ago. I realized that I was drowning only in horror in my eyes. his friends swam nearby and no one saw anything. he was 15 years old.
11.

He drowned in the Black Sea. The parents didn't notice. Saved by a man passing by.

Let summer bring you only joy! Take care of yourself and your loved ones.

Lesson Coal

Correction logical thinking on the basis of an exercise in establishing similarities and differences.

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TOPIC: COAL.

OBJECTIVES: To acquaint students with the types of coal, the properties and importance of coal, and methods of extraction.

Correction of logical thinking based on an exercise in establishing similarities and differences.

Raise respect for the profession of a miner.

EQUIPMENT: collection, multimedia presentation, handout.

VOCABULARY: brown coal, anthracite, mine, matte.

METHODS AND TECHNIQUES: conversation, story, work with a notebook, riddles, viewing a presentation.

The ringing bell rings

An interesting, useful lesson awaits you.

Let your mood be wonderful

Teaching is easy and joyful. slide 1

2. The game "Collect the words"

fossil slide 2

We continue to study combustible minerals

3. Actualization of students' knowledge. slide 3

Think and guess.

Plants grew in the swamp And now it is fuel and fertilizer. (peat)

Without it, neither a taxi nor a motorcycle will run, a rocket will not rise. Guess what it is? (oil)

In the kitchen, my mother has an excellent assistant, He blooms with a blue flower from a match.

He is black, shiny, a real helper to people.

It brings warmth to houses, light from it in houses, helps to melt steel, make paints and enamels. (coal)

Peat, oil, natural gas and coal.

How can one word combine these words (combustible minerals).

Why are they classified as fossil fuels?

3. Studying a new topic.

The hero of our lesson today will be this nondescript piece of rock

What is this mineral?

Read the words in the flowers. What happened? slide 4

We will do a little research and learn a lot about coal.

Write the topic in a notebook. slide 5

We explore coal today from a variety of perspectives. For research, you need to go on a journey through the pages of the book. slide

How interesting guys

With a bowler hat and a bag on my back

We walk from dawn to dusk

On the roads of the native land

Like a big open book

How interesting, my friends.

1 page -historical slide 6

2 page - geographical

3 page - research

4 page - geological

5 page - biological

6 page - technological

7 page - economic

8 page - ecological slide 7

1 page - historical slide 8 (the history of the appearance of coal in Russia)

Coal in terms of history

The army went on a campaign on horseback, the guns were pulled on bulls - the troops marched through the sultry steppes. In order to avoid a fire in the steppe and not leave animals without food (grass), the soldiers were given a cruel order - to cover fires with stones at halts. At one of the halts, the soldiers surrounded the fire with black stones found in the ravine, when the fire flared up, the stones also caught fire.

Peter the Great, when they showed him these strange stones, seemed to say: "This mineral, if not for us, then it will be useful for our descendants."

His words turned out to be prophetic. And already during his lifetime, exploration work for coal began in Russia.

2 page - geographical

Coal from the point of view of geography is the answer to the question "where?": where coal is deposited and where it is mined.

Deposits of coal. Slide 9

What is a deposit? (a place where minerals are found)

Coal deposits on the map are indicated by a black square.

(work with physical card Russia)

Our Motherland, not only in terms of coal reserves, but also in its production, ranks first in the world.

“There is no land in the whole world where so many riches would be stored, where the forces of the bowels would be so powerful. » A. Fersman slide 10

Coal reserves in Russia are distributed extremely unevenly. More than 90% falls on the still insufficiently developed regions of Siberia and the Far East. There are more than 200 coal deposits in Russia, their accumulations form coal basins.

The largest of them:

Pechora - near the city of Vorkuta in the North - east of the Pechora River.

The history of the discovery of the Pechora deposit is interesting. He was found by the hunter Popov Viktor Yakovlevich during a hunt (with his son). He collected coal in a backpack, and, having reached the house, sent a parcel to Moscow. The sent expedition of geologists discovered the richest deposit, the city of Vorkuta miners grew up here. V.Ya.Popov was awarded the Order of Lenin. This deposit is located in the far North, there is a treeless harsh tundra, a long and harsh winter.

The largest locations of coal are in Siberia (Kuzbass).

In the European part highest value has a Donetsk basin (Donbass is an all-Union stoker). The thickness of coal seams varies from a few centimeters to 100 meters or more.

3rd page - research. slide 11

Practical work: "Properties of coal."

What is he? (solid).

The aggregate state is a solid body.

2. Try to break it with your hands. However, if coal is hit with a hammer, it will split into several pieces by hitting a piece of coal (in crumpled paper) with a hammer.

What can be the conclusion?

3. Put a piece of coal in a glass of water. What will happen?

Do you remember peat floating in the water

What can be the conclusion?

Coal is heavier than peat.

3. Compare coal and peat.

Observation of the combustion of peat and coal shows that, unlike peat, which flares up almost immediately, coal flares up for a very long time. Usually, firewood is first kindled, and only then coal is evenly placed on top of them in small portions. For good combustion of coal, additional air supply is required, the blower is opened. Remember: oxygen, entering the air blower, contributes to active combustion. Having tanned, it burns for a long time with a bright flame. In this case, heat is released, much more than when burning peat or firewood. That is why most boiler houses are heated with coal.

Bottom line: Coal is hard, brittle, black, shiny, sinks in water, burns well and gives off heat. (notebook entry)

Fizkultminutka. slide 12

Put your hands on your belt first.

Swing your shoulders left and right.

You reach your little finger to the heel,

If they succeeded, everything is in order.

Blink so many times

How many girls do we have.

Let's make so many claps

How many flowers are in a vase

4 page - geological

Coal from the point of view of geology.

Hard coal varies from deposit to deposit.

TYPES OF COAL. slide 13

There are three types of coal in nature - brown, ordinary coal and anthracite (viewing the collection)

Types of hard coal

BROWN COAL. An apple and a pear are called ripe when they are full of juices. They say about rye - “rye is ripe” when it is time to harvest it. But it turns out that they also say about coal - “mature”.

Brown coals, friable and dimmer, are called immature by geologists. They do not shine, they burn worse. Slide 14

Anthracite is considered the most mature. This is the best coal, the strongest and densest, black, shiny, almost does not stain hands. During combustion, a lot of heat is released. slide 15

ORDINARY COAL is grayish in color, matte (less shiny) and stains hands more. It burns worse than anthracite and emits less heat. slide 16

Conclusion: Brown coal - hard, dark brown, loose, dimmer, does not shine, burns worse

Anthracite - hard, black, dense, strong, shiny, does not stain hands, emits a lot of heat.

Ordinary coal - hard, black, less dense, brittle, opaque, stains hands

Filling in the table in workbook from 34 no. 12.

5 page - biological.

Formation of hard coal

Why is it called stone? Coal is very hard. Like a stone. For a long time it was believed that he was akin to a stone. That's why they called it that, but the stone does not burn.

Coal is a wonderful black stone, heat and light are hidden in it. If anyone has seen coal burning in the stove, it is a bewitching sight. Where did coal come from? Why does coal give fire?

The great Russian scientist M. V. Lomonosov solved this riddle. He discovered that coal was formed from ancient plants and trees that grew on the earth in ancient prehistoric times.

Work with the textbook, reading the article p.111 of the textbook, demonstration of prints, painting (carbon forests). Slide 17

From what in ancient swamps under the weight of water and earth, without air access, thick layers of coal were formed?

People, splitting pieces of coal, often stumbled upon the imprints of leaves of plants, bark of trees. This proves that coal was formed from the remains of plants a long time ago. Traces of once living plants, seen by us through a microscope, lead to a distant, distant past. Each piece of coal is a kind of museum in which the remains of bygone times are kept slide 18

Special devices are able to determine the age of coal. So, he is many millions of years old (then there were no people on earth).

According to the prints, it was established that the plants then grew completely different than now, only the fern is now in the forests.

And now in some tropical forests, in conditions of high humidity and heat, giant tree-like ferns live, up to 9 meters high. Slide 19

6 page - technological

Coal in terms of technology

Coal mining.

Coal is mined in different places. Seams of coal are not only at great depths. Some of them go to the surface of the earth.

Coal mining from seams that come to the surface of the earth is carried out open way. An open pit or quarry method is used if the coal seams lie shallow - no deeper than 100 m. Upper layer- soil, clay, sand - are pushed aside and dumped into a dump, they start mining with excavators, take them out with dump trucks or build a special railway. Coal quarries are called cuts. - slide 20

If the coal lies deep, they build a mine in which underground mining is carried out. The deepest mines in Russia mine coal to a depth of 1200 m. Hard coal also occurs in large layers in the ground. In many places deep in the earth there are layers that are meters thick, and in some places they reach 100 meters thick. It is mined in a closed way To extract coal from the depths of the earth, coal mines are made. slide 21

A mine is a deep vertical well with horizontal tunnels that reaches into the coal seams. Special cabins move in the mine. In them, miners descend underground to mine coal and rise to the surface after work. From the mine, long underground corridors stretch in all directions, with rails or conveyors laid in them.

Student's story: It used to be dark and dark in the mines. Somewhere in the darkness, the dim light of a miner's light flickered. Coal was driven by a horse blinded by eternal darkness, and in a narrow corridor where a horse cannot pass, coal is dragged by a worker.

"Sledger" harnessed to a sled. The miner was chopping coal with a hammer. Such working conditions were in tsarist Russia. slide 22

Now the mines are burning electric light. Instead of a hammer, a jackhammer, a cutter, (slide 23) a mining combine works deftly and quickly. (slide 24) Coal is loaded onto trolleys, transported to them to the exit from the mine. Here it is raised to the surface. On the surface, coal is loaded into special rail cars and transported to destinations.

In 12 hours, a miner can manually extract 2 tons of coal, and with the help of combines and cutters, a miner extracts up to 1,000 tons of coal in 6 hours (a whole train)

He works in a mine - a miner. This is a difficult profession. The miner is distinguished by internal composure, increased discipline, attentiveness, responsibility. A miner needs good hearing and eyesight, and must also be physically developed.

7 page - economic

3 SIGNIFICANCE OF COAL. Slide 25

What is the importance of coal now? (student answers)

Coal is used as

energy fuel for power plants, industry,

technological fuel for ferrous metallurgy

raw materials for the chemical industry.

Hard coal is a valuable fossil fuel. They heat the premises, it is used as fuel in factories and plants, burned in the furnaces of power plants.

In special furnaces, coal is heated strongly without air. Light gas and coal tar are emitted from coal. Coal becomes much lighter and ceases to shine. This is coke.

Coke is used in the smelting of pig iron from iron ore in blast furnaces.

(pans, irons). Luminous gas used to be used to illuminate streets and houses. Now it is used as a fuel in factories.

Paints, medicines and many other useful substances are obtained from coal tar.

8 page - ecological

Coal from the point of view of ecology. (slide 26)

And now it is time to correlate coal with ecology. Which ecological problems did you notice? (student answers)

Destruction of the fertile layer, dumps,

air pollution from coal combustion. Slide 27

Coal from the point of view of the future (Slide 28).

Coal was the main fuel in the first half of the 20th century, now it has given way to oil and gas. Its share in the country's fuel balance in

50s was 59%, and now 18%.

We have already said that the role of coal in the country's fuel balance is declining. Does coal have a future? Using data from scientists on the reserves and production of oil, coal and gas, we determined how many years these resources will last. At the current level of oil production, there will be enough for 42 years, gas for 73, coal for 651, in the future coal may become the main fuel.

1. Completion of assignments in the workbook p. No. 11,13,14.
2. Match properties - cards

HOME TASK. With..

LESSON SUMMARY. What did we talk about in class today?

Sincwine slide 29

2. Ordinary, brown, anthracite.

3. Burns, generates heat.

4. Ways of extraction of coal - open and closed.

5. Combustible mineral.

A legend has come down to us that 250 years ago, Russian troops went on a campaign against Azov under the leadership of Peter the Great.

The army went on a campaign on horseback, the guns were pulled on bulls - the troops marched through the sultry steppes. In order to avoid a fire in the steppe and not leave animals without food (grass), the soldiers were given a cruel order - to cover fires with stones at halts. At one of the halts, the soldiers surrounded the fire with black stones found in the ravine, when the fire flared up, the stones caught fire

It used to be dark in the mines. Somewhere in the darkness, the dim light of a miner's light flickered. Coal was driven by a horse blinded by eternal darkness, and in a narrow corridor where a horse cannot pass, coal is dragged by a worker.

"Sledger" harnessed to a sled. The miner was chopping coal with a hammer. Such working conditions were in tsarist Russia.

What to remember.

1. Combustible mineral.

2. Practical work: "Properties of coal."

1) Take a piece of coal

What is he? (solid)

2) Try to break it with your hands.

Coal is hard but brittle at the same time.

3). Put a piece of coal in a glass of water. What will happen?

4) Put a piece of peat in the water.

What will happen? Peat floats in water.

What can be the conclusion?

Coal is heavier than peat.

5).Compare coal and peat.

Similarity - combustible minerals, solid.

The difference is that peat is light, it barely sinks in water. And coal is heavier than water - it sinks in water.

Hard coal is 2.5 times hotter than peat.

Writing in a notebook - Coal - hard, brittle, black, shiny, sinks in water, burns well and brightly.

1. Types of coal - brown, ordinary coal and anthracite

Brown coal - hard, dark brown, loose, duller, does not shine,

Anthracite - hard, black, dense, strong, shiny, does not stain hands,

gives off a lot of heat.

Ordinary coal - hard, black, less dense, brittle,

matte, stains hands

Open - coal mine

Closed - mine - underground deep vertical well with horizontal tunnels.

Special cabins for miners

Cabin for lifting coal to the surface

An electric locomotive carries coal to the exit from the mine.

5. The importance of coal - thermal power plants and boilers, plastics, medicines, perfumes, gunpowder, fuel in blast furnaces.

On the topic: methodological developments, presentations and notes

The presentation for the lesson consists of an oral account for the methods of rapid multiplication, theory about angles, assignments on the topic.

Fragment of the abstract of the lesson on the topic “The angle between the planes. Dihedral angle"This lesson is conducted first in the topic" Dihedral angle. Perpendicularity of the planes "The learning task is to determine what is understood.

This lesson allows you to organize the activities of students in the assimilation of educational material on the topic “Angle. Direct and deployed angle”, to establish intra-subject and meta-subject connections, identify.

The lesson is in the form of a presentation. There are 13 slides in total. There is a lesson plan. A math lesson in grade 5. Lesson topic: “Angle. Straight and angled. Drawing triangle. The motto of the lesson: The way of the axis.

Open lesson on the topic “Angle. Straight and angled. Drawing Triangle.

The concept of a dihedral angle and its linear angle is introduced. An algorithm for constructing a linear angle is considered. Problems for fixing new concepts are considered. A constructive skill is being formed to find.

Geography for the little ones. Minerals

Geography for the little ones.

1. Our land keeps many real riches and treasures. And this is also an interesting and important topic for discussion with the baby. Why are natural resources called "mineral resources"? Fossils - because these riches need to be sought and dug out of the ground, and useful ones - because they bring great benefits to people.

Watch presentations (like always click-to-frame)

Minerals are natural resources that people extract from the depths of the earth or from its surface and use it in national economy. So, unlike each other, iron ore and oil, granite and limestone are actually very close to each other.

Minerals are non-living things. Many of them were formed from the remains of living organisms that were on Earth millions of years ago.

Fossils - because they are extracted from the bowels of the Earth, torn away by man from its stone shell.

Useful - because they serve a person, that is, at his will they turn into a variety of necessary things that create comfort, provide security, heat, feed, transport. In a word, minerals are needed always and everywhere, have a huge impact on our whole life.

Minerals are divided into 3 groups: combustible (oil, gas, coal; ore (metals are obtained from them); construction (sand, stone, they are used in construction).

A large accumulation of minerals in the earth is called a deposit.

 While preparing dinner with your little one, tell him about natural gas. But in the kitchen there is another valuable "fossil" - salt. Ceramic dishes are made from clay, glass from sand. All of these are minerals.

 Sitting by the fire in the forest, think about coal, traveling in a car - about oil. Walking around the city will introduce the baby to rocks, such as marble and granite. They are widely used in construction. Being engaged together with the crumbs of creativity, tell us that earthly riches even help to make wonderful drawings. Multi-colored crayons for drawing on asphalt rock chalk. It turned out from the shells and parts of tiny plants and animals that lived many, many years ago. And the pencil lead, which leaves colored lines on paper, is made from a mineral called graphite.

 Rings and beads are made of precious stones. These stones are very beautiful. They shine and shimmer in different colors. Such stones are rare in the earth, they are expensive, and therefore they are called precious. These are diamonds, rubies, emeralds, etc.

 Try with your baby to create your own collection of minerals. Most likely, you will not be able to find precious stones, but here are the usual salt, coal, sand, chalk, graphite, etc. rightfully take their rightful place in it.

2. Invite your child to solve riddles about minerals

They cover the roads

Streets in villages.

It's also in cement.

He himself is a fertilizer. (limestone)

No wonder she boiled

In a blast furnace.

Got famous

Scissors, keys. (iron ore)

The white stone melted

Left traces on the board (chalk).

Plants grew in the swamp,

They became fuel and fertilizer. (peat)

The kids really need it.

He's on the paths in the yard

He is at a construction site and on the beach,

And it's even melted in glass. (sand)

Very strong and resilient

Builders reliable friend.

Houses, steps, pedestals

They will become beautiful and noticeable. (granite)

Won't run without her

No bus, no taxi

The rocket will not rise.

Guess what it is? (oil)

He brings warmth to the house,

It's light all around,

Helps to melt steel

Make paints and enamels.

He is black, shiny,

If you meet on the road

Then the legs get stuck a lot.

And make a bowl or vase,

She'll be needed right away. (clay)

Mom has a great helper in the kitchen.

It blooms with a blue flower from a match (gas)

 Show the child pictures or objects. The kid must guess which mineral was used to make this item. For example, Photographic film - coal;

Candy, cheese - oil;

Paints, plasticine - clay;

Light bulbs, glass - sand;

Spoon, plane - iron ore.

 Guess the story-riddle about which mineral it is talking about.

Billions of years ago, I was a tall, mighty tree, towering proudly over my short brethren. But a misfortune happened. A strong wind pulled me out of the ground and threw me into a swamp. Stretched boring, endless, long years. From grief, longing and loneliness, I turned into a hard, cold, black substance and thought that I would have to be in this state forever. Suddenly one day a man came, saw me and took me to his house. I made friends with him. And from happiness turned into a cheerful hot fire. Since then, I have been heating the house, driving cars and giving my friend medicine to keep him healthy.

Mom: what is this mineral?

Child: It's coal.

Mother. By what properties did you recognize coal?

Child. Coal is black, sinks in water, hard but brittle. Its main property is flammability. Coal is used to heat houses, factories, factories. Medicines are obtained from coal tar.

Mother. What is the symbol for coal on a map?

Child. It is marked with a black square. (shows on the map).

I am a very strong, heavy breed. I can be found on the plains, but there are even whole mountains made up of me. I am a very beautiful mountain breed. I can be gray, and dark red, and smoky, I have both black and white specks in me. Most of all, a person loves me because he can build the foundation of a building, steps of stairs, monuments, bridge supports, using my properties.

Mother. what mineral are we talking about?

Child. I think it's granite.

Mother. What helped you guess? What are the properties of granite?

Child. It is very durable, so it is used in construction. It is also well polished and decorated with buildings, embankments, metro stations.

Mother. What is granite made of?

Child. It is composed of quartz, mica and feldspar.

 Describe the mineral and invite the child to guess or choose from the offered cards with minerals the one you were talking about.

 Lightweight, absorbs water, burns well.

 Serves for fertilizing fields, heating.

 It is formed from the remains of plants in swamps.

 Get gasoline, kerosene, machine oil.

 It is believed that this mineral was formed from the remains of algae and the smallest plants and animals, it can be found at the foot of the hills, along the banks of rivers.

 Dense stone, heavier than water.

 Used in construction, as a fertilizer; chalk is used at school.

 In many places along the steep banks of the rivers you can find a whitish-gray stone.

 Heavy, very strong, important property - fusibility.

 Steel is smelted, and knives, scissors, rails, wagons, machine parts are made from it.

 In some places they lie shallow, while in others they dig deep mines.

 This mineral is gray (orange) in color, opaque, viscous, heavier than water, does not pass water well.

 They make bricks for construction, porcelain dishes.

 They are shallow, mined in an open way, in quarries.

Practice growing salt crystals with your child.

Dissolve the salt in a glass of warm water, stirring it with a spoon. Add salt to the water until it no longer dissolves. Tie a crystal of salt to a thin thread and lower the thread into the cooled solution. Watch him for a few days.

While you and your child are watching the formation of crystals, tell him that table salt is a valuable food product. It is part of the human body and is constantly excreted along with sweat. That is why we must eat salt every day. Salt is also necessary for animals. Salt is added to the feed for domestic animals, and artificial salt licks are arranged for wild animals.

A lot of table salt is dissolved in the water of the seas and oceans. But sea water is unsuitable for drinking, because in addition to table salt, many other substances are dissolved in it.

Information for mom:

People have long found in the ground and on its surface a dark oily liquid, which in Rus' was called "earth tar" for its resemblance to tar obtained from birch bark. This liquid was used for lubrication (axles of carts, shoes), even used as a medicine. This liquid burns well, therefore, from ancient times it was used in war, where enemy fortifications were set on fire with incendiary arrows and bombs. It was oil.

Oil is a liquid of brown or dark color, with a pungent odor, it is lighter than water, but its main advantage is that it burns well, for which it is valued.

Oil is extracted by oilmen underground, from where it is pumped out through wells by pumps - rocking chairs. Wells are usually km deep, although there are deeper ones. From wells through pipes - oil pipelines, oil is supplied to refineries, where various substances are made from it.

Oil is mainly used to make fuel for cars: gasoline, kerosene, diesel fuel, as well as oils for lubricating parts. Oil is also used to make alcohol, various plastics, fertilizers, polyethylene films, paints, fabrics, clothes and even explosives for bombs and shells.

Oil and products of its processing are also transported in tanks by rail and on special ships - tankers. The tanker ship has many compartments - tanks - for stability and safety.

Oil fields on the map are indicated by dark triangle towers. The largest deposits where oil is extracted are between the Volga River and the Ural Mountains (Volga - Ural), and in Western Siberia beyond the Ural Mountains.

Coal was formed millions of years ago from the remains of dead plants. For hardness it is called stone.

Hard coal is mined in quarries or mines, depending on the depth of its occurrence in the ground. The work of miners is very necessary for people, but it is very dangerous.

Properties of coal.

Most often it is black. Quite hard, but brittle - breaks into pieces on impact. The main property of coal is that it burns well, releasing a lot of heat.

Coal is mainly used as a fuel for heat and electricity generation. The light in the houses comes from power plants where coal is burned. Hot water for people is often heated in coal-fired boilers.

Trains on railways and machine tools in factories run on electricity generated by burning coal.

The accumulation of coal in the ground is called a deposit. Deposits on the map are indicated by a black square. The largest coal deposits in the country: Pechora (near the Pechora River), Donetsk, Kuzbass - near the city of Kuznetsk (Kuznetsk basin).

Iron ore is mined in mines or quarries, from where it is brought to blast furnaces, where iron is smelted from it.

Then the cast iron enters the open-hearth furnace, where steel is brewed from it. Steelworkers work at open-hearth furnaces. The work of a steelworker is very hard.

From finished steel, factories make: machine tools, rails, trains, cars, parts of aircraft, tractors, combines, pipes, utensils, weapons, and many other necessary items.

Part of the cast iron from the blast furnace is used to cast parts for machine tools, radiators, frying pans, etc.

Accumulations of ore in the ground are called deposits. On the map, an iron ore deposit is indicated by a dark triangle.

Our largest deposits are: Magnitogorsk and Kursk, as well as near the city of Bratsk.

Geological expeditions are engaged in the search for deposits.

Geologist is a very necessary and interesting profession.

Granite is one of the most common minerals on earth and often forms entire mountains. Granite is not a Russian (Italian) word and is translated as "grainy". The grains that make up granite are quartz, feldspar and mica - they are of different colors.

When granite is destroyed, sand is formed from quartz, and feldspar and mica turn into clay, which are abundant on earth. Sand and clay are the remains of destroyed mountains.

Granite is very strong and therefore widely used in the construction of bridges, buildings, roads, monuments.

Very interesting material, but I want to ask

what mineral was used to make this item.

Candy, cheese - oil;

What does cheese have to do with oil. Encyclopedias say that this is a completely natural fermented milk (or with the use of enzymes) product 😕

In general, add books to presentations and invaluable material will turn out! : It's rare to find one like this! Gotta get busy.

Marie, you are amazing as always.

Katyusha, I saw this task here

I didn’t understand it myself, but I thought, since all the other measures are logical, then probably there should also be some kind of logic with candy and oil, like some kind of teacher was writing a task.

Engaged in Doman from the first month of her daughter's life and up to four years

The material is still very necessary, but it would be necessary to check any statements. I wrote to get your attention. After all, everyone can make mistakes.

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Does coal sink in water

For work you will need: a piece of granite, some river sand and dry crushed clay, pieces of peat and coal, table salt, a glass of water, a magnifying glass, a magnet, three glasses with funnels, ice cubes, a thin dry twig.

> Look under a magnifying glass and describe the color, particle size of these rock samples. Do they differ in smell, touch, shine?

> Find out which rocks float in the water.

Take two identical ice cubes. Sprinkle one of them with salt. Which of the cubes will melt faster?

Attracts to a magnet

Find out the mineral, write down its name.

Lightweight, absorbs moisture, burns well, serves as bedding for livestock, fertilizer. (Peat.)

It is mined, heavy, strong, malleable, consists of small, densely connected grains. (Iron ore.)

Black, with noticeable brilliance, hard, sinks in water, combustible. (Kamencoal.)

Durable heavy breed, it comes in gray, pink, red colors. Consists of grains of several minerals: feldspar, quartz and mica. (Granite.)

Usually white or gray stone, formed from the remains of marine organisms. (Limestone.)

Dark oily liquid, burns, gasoline, kerosene, fuel oil are obtained from it. (Oil.)

Formed during the destruction of granite, it is used in construction and in the manufacture of glass. (Sand.)

It has plasticity, it is used in construction and pottery. (Clay.)

Pairs are tested.

2. Individual work on cards.

1. Complete the diagram:

2. Describe the mineral according to the plan:

c) Method of extraction;

d) Meaning, application.

Students are given samples of minerals.

3. Connect the mineral and its properties with arrows.

With a pungent odor

Test "Our underground riches"

1. Mineral deposits are found.

2. Minerals include.

a) brick, concrete, gasoline;

b) machines, vases, scissors;

3. Used in construction.

a) peat, iron ore, gems;

b) sand, clay, granite;

c) marble, coal, malachite.

4. Metals are obtained from.

a) coal, amber, chalk;

b) pearls, limestone, peat;

V) iron ore, copper ore.

5. Mined with the help of drilling rigs.

A) oil, natural gas;

b) potassium salt, diamonds;

c) marble, granite.

6. Mines are mined.

a) limestone, shell rock, granite;

b) coal, anthracite, iron ore;

c) table salt, pearls, graphite.

7. They mine in quarries.

A) limestone, sand, clay;

b) gold, malachite, marble;

c) oil, peat, brown coal.

8. Minerals with combustible properties ...

We all saw in the movies how people drown. Therefore, we all know exactly what a drowning person looks like: he screams, begging for help, flounders in the water, beats the water with his hands and feet, raising clouds of spray, periodically goes under the water, then emerges again, spitting and renewing screams, but gradually under it is more and more water, and emerges less often. And if you imagine drowning in this way, however, like the vast majority of people, then you should know that a person next to you can drown, and you won’t even notice it, because there is nothing to do with the cinematic picture of drowning and how it happens on really. Everything would be fine, you never know, in what else the cinema embellishes and dramatizes reality, with one exception: drowning is the second most common cause of death in children from accidents, and about half of the children drown in front of their parents, who do not come to the rescue in time, because they just don't understand what's going on.

Why don't people drown like in the movies?

The task of the actor is to make it clear that some kind of action is taking place, this is the essence of acting. In life, a drowning person cannot make it clear that he is drowning, due to physiological reasons, and therefore the process itself occurs so quickly, quietly and inexpressively that it is completely unsuitable for depiction in a movie. And now a little more in detail and in order:

1. A drowning person is unable to call for help. This happens because all his strength is spent on maintaining breathing, which is a paramount, vital function. Speech is not such, and therefore, when you catch your breath, it is impossible to scream - unless a person, having quickly oriented himself, managed to do this before actually starting to drown, which happens extremely rarely. Then the person's mouth goes under water, and convulsive movements that allow you to stay afloat are not enough to make a full breath, exhale and provide a cry. As a rule, in this state, the reserve of forces is enough for only a few jerky breaths;

2. The human body does not lie flat on the water, pounding with hands and feet, but is in an upright position. At the same time, the legs do not support the body in any way, moving convulsively and inefficiently at best, and the arms make instinctive movements in an attempt to push off the surface of the water, and therefore a person is also unable to swing his arms;

3. A drowning person not only cannot call for help or otherwise draw attention to himself, but he also cannot perform meaningful actions, for example, make a dash towards a lifebuoy or other life-saving devices. At this time, the deep structures of the psyche operate, the biological survival mechanism, the person is in the grip of the strongest of instincts, and therefore it is completely useless to call him and give him instructions, this is just a waste of precious time, which, by the way, is very small. The entire drowning process takes 20 to 60 seconds. Thus, it can be described as extremely fast and silent.

Panic state

What about those people who beat the water with their hands and feet, and loudly call for help? Does this mean that they are liars or overly emotional and fool around for nothing? Oddly enough, most of the time it doesn't. This behavior is characteristic of the state of panic, which sometimes precedes drowning. Panic, of course, can be erroneous, but on the water you should never rely on chance and reassure yourself that it is possible, this is a joke. Panic can be both a precursor to drowning and its direct cause, this condition means that a person is in trouble. Unlike drowning itself, in a state of panic, a person is capable of not only instinctive movements, he also reacts to rescue teams and can perform meaningful actions, since panic is a reaction of consciousness to an imminent danger. You should know that the state of panic does not last long before a person begins to drown, and besides, it often does not happen at all - drowning people do not always have time to figure out what happened.

Signs that a person is drowning

So, the following signs most likely indicate that a person is drowning:

• The head does not rise completely above the water, the mouth is under water or at the water level;
• A person is vertically in the water, pushing off the water with his hands, and making movements with his legs, as if climbing a rope ladder;
• A person tries to lean back, while opening his mouth and taking convulsive breaths, trying to roll over on his back;
• Suffices a mouth air, breath sharp, short;
• The eyes are either closed or do not focus on objects, the look is meaningless, "thoughtful" - which, in combination with the previous signs, looks like dissonance;
• The hair hangs down, covering the eyes, and the person makes no attempt to push it back for better visibility.

How not to make a mistake

With absolute certainty, it is possible to say that a person has drowned only after his lifeless body is pulled out of the water. Therefore, if you see warning signs of drowning or a panic that precedes it, if you assume that a person is in trouble, simply call out to him and ask if he is all right. If you don't get a response, or if you get a blank stare in response, know that you need to act immediately, as you have extremely little time left.

Rules of conduct on the water for parents

Parents traveling with children to the pond should know that they do not have the right to relax completely. Regardless of whether the child can or cannot swim, he must be in sight all the time. Don't rely too much on inflatables: bright circles, balls, colorful mattresses, fun toys, and even supportive armlets and vests. On each of these items it is written that it is not a life-saving device, but is just a toy, the slightest damage, and this item will become an additional risk factor. Even if the child is splashing near the shore or in the "paddling pool", be close, watch, call out to him. Always be alert if the child is silent. Silence is not typical for children, especially in the water, if the screeching, happy cries and screams subside, immediately go to the child and make sure that everything is in order with him.

You should also consider the direct route of entry of helminths into the brain - from the ear canal.

Where are the worms in the ears?

Worms can get into the ear with dirty water: when a person dives with his head in an untested reservoir.

Specialists distinguish two types of worms that can enter the human brain:

• echinococcus larva;
• pig tapeworm larva.

Carrying out diagnostics

Tired of dizziness and headache, the person goes to the doctor. And a good specialist does not just examine the patient and interrogate him, but usually recommends additional examinations before prescribing drugs:

• take a blood and urine test;
• take an X-ray of the head;
• undergo magnetic resonance imaging;
• undergo a CT scan.

Most often, helminths are detected with magnetic resonance imaging - as cystic neoplasms. This is just the option when a simple accident can sometimes save a person's life.

This is important: you should definitely take an analysis to determine the level of eosinophils. It is this analysis that helps to establish that there are helminth larvae in the brain cavity.

The best option for suspected development of helminthic invasion in the brain is to pass an enzyme-linked immunosorbent assay, an analysis for eosinophils, and undergo magnetic resonance imaging. To clarify the diagnosis, a study of the level of eosinophs in the blood and in the cerebrospinal fluid is carried out (cerebrospinal fluid can be taken from the spinal cord).

A person can catch a tapeworm larva by eating unwashed vegetables, raw meat. Echinococci enter the human body from a dog. It is extremely rare for a human brain to be affected by roundworms or Naegleria fowleri.

And the main sign of brain damage is severe pain.

It can be acute, appearing from time to time for several years. Sometimes patients experience monotonous, aching pain. The nature of pain sensations depends on where the worm is located, how fast it grows, whether it touches large blood vessels, whether it has access to nerve nodes.

Symptoms may vary depending on how affected the brain is and what type of helminth develops in it. Consider the possible course of the disease in the most common helminthic invasions of the brain.

Neurocysticercosis (cysticercosis of the brain)

Since cysticercus is an object alien to the brain, an inflammatory process occurs around it, a fibrous capsule is formed. The larvae die over time (they can live for a year or two, feeding on the intracapsular fluid), and the capsule becomes stronger and accumulates calcium.

Finns can be in the brain for 6-7 years. At the same time, cysts disrupt the blood circulation of the brain, provoke an inflammatory process, and cause swelling of the brain. Capsules put pressure on the tissues of the gray matter, impair the outflow of cerebrospinal fluid.

Depending on where the tapeworm larvae are located, the disease is divided into several types:

The main symptoms of the disease:

• epileptic seizures;
• paralysis and paresis of the limbs - partial or complete decrease in the sensitivity of the arms and legs;
• violation of the perception of addressed speech;
• dyslexia;
• deterioration in coordination;
• decrease in intellectual abilities;
• development of dementia;
• uncontrollability of the limbs;
• the appearance of delirium, hallucinations;
• bursting headache;
• ear noise;
• photophobia;
• loss of consciousness;
• increased sweating;
• pallor of the skin.

Signs of helminthic invasion of the brain can appear in combination or separately. Together with the growth of cysts, the patient's condition worsens, the lack of treatment can lead to disability, death of a person.

Echinococcosis

This disease is divided into solitary - with the formation of a single cyst and racemose - with the formation of a cluster of cysts. Echinococcus larva develops inside the bladder. The bubble is a cyst consisting of two shells: an inner, soft, surrounding the embryo, and an outer, hard, consisting of chitin.

The bladder contains echinococcal fluid, in which daughter echinococci appear. Because of this, the cyst can grow very quickly - literally 1 mm per month in diameter.

Echinococcus

Echinococcus cyst grows, puts pressure on brain cells, compresses large and small blood vessels, disrupts the outflow of cerebrospinal fluid. Live echinococcus, daughter bubbles secrete metabolic products. At the same time, the human body is poisoned, symptoms of intoxication, allergic reactions appear.

Characteristic signs of the disease:

• headache;
• frequent dizziness;
• visual impairment;
• elliptomorphic seizures;
• paresis and paralysis of the limbs;
• increased intracranial pressure;
• depressive states;
• nervous excitement.

The disease lasts a long time, the first period may not have any symptoms, marked by rare headaches. With the growth of echinococcal cysts, signs of brain damage by worms increase. A person's coordination is disturbed, attention falls, dementia develops.

Rupture of the echinococcal bladder can provoke anaphylactic shock, a powerful inflammatory process, loss of consciousness, and death of the patient.

Treatment

Having answered positively the question “Are there worms in a person’s head?”, Enough time should be devoted to therapeutic measures.

Remember that only a doctor can make the right treatment for the brain!

• praziquantel;
• aldbenazole.

• diuretic - to reduce swelling of the brain;
• non-steroidal anti-inflammatory drugs - to eliminate inflammatory process, pain relief;
• hormonal drugs - to eliminate reactions to allergens;
• anticonvulsants - to relieve epileptic seizures.

If cysts with neurocysticercosis calcify, grow strongly, and do not respond to therapeutic treatment, surgical intervention is prescribed.

Multiple cysts of the brain cannot be removed. There are also situations when the helminth bladder reaches such a size that it is impossible to cut it out without consequences. In this case, doctors try to make the patient's life as easy as possible, to eliminate the severe consequences of brain damage.

Prevention

In order to prevent the disease, it is necessary to observe preventive measures:

• wash hands before eating;
• do not eat raw meat, fish;
• carry out preventive treatment of pets.

To anyone who notices unpleasant symptoms the occurrence of helminthic invasion, you should urgently consult a doctor and begin treatment. If preventive measures have not helped, it is better to cure the disease at an early stage, avoiding significant effects on the brain.

• 1 How is it transmitted?
• 2 When does the disease appear?
• 3 Risk of human infection with demodicosis
  • 3.1 Is it possible to get infected from a person?
  • 3.2 Is it possible to get infected from animals?
• 4 Disease prevention

Many people are interested in the questions: is demodicosis contagious and can it be infected from animals and people? Demodicosis is a disease that is characterized by damage to the skin and hair. The disease has another name - rosacea, and it provokes a subcutaneous tick. In appearance, acne and demodicosis in humans are very similar, as they affect the sebaceous glands. However, tick infestation has a completely different development. That is why it is important to understand in detail how dangerous the disease is and how you can get infected.

How is it transmitted?

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When does the disease appear?

The mite most often affects the skin of the face and neck.

The disease manifests itself in the form of redness of the skin (mainly the face), which subsequently develops acne. The rash is often most pronounced near the nose, on the chin and on the forehead. Sometimes redness can be observed on the back, chest and in the groin area. The affected skin begins to tingle, there is severe itching, tightness of the skin, which becomes shiny and flaky, and the pores expand.

In situations where demodicosis has affected the eyes, the patient develops purulent discharge from them, the eyelashes become thinner and begin to fall out. If the mites have struck the skin of the head, the patient develops seborrhea, which is characterized by increased sebum secretion, as well as severe hair loss.

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The risk of human infection with demodicosis

Conditions in which you can become infected with the disease:

• reduced immunity;
• period of pregnancy;
• disruption of the endocrine system;
• severe stress;
• smoking;
• alcohol abuse;
• unhealthy diet;
• sleep problems;
• the use of certain drugs;
• allergic reactions;
• frequent visits to baths and saunas.

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Is it possible to get infected from a person?

Ticks can be transmitted from an infected patient.

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Is it possible to get infected from animals?

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Disease prevention

To avoid infection with demodicosis, it is important for a person to follow simple rules, the first of which will be careful personal hygiene. In addition, it is important to treat any diseases of the skin and inflammation as soon as possible. You should not wear other people's clothing and use their hygiene products and cosmetics. It will also be useful to maintain a healthy balanced nutrition, quitting smoking and drinking alcohol and avoiding stressful situations. In cases where the first symptoms appear, it is important not to self-medicate and immediately seek the advice of a doctor, since the disease is much easier to cure on initial stage.

Visual manifestations of any dermatological diseases in most cases are far from pleasant. As practice shows, even the majority of medical students educational institutions and young doctors, when looking at photos with images of samples of such pathologies, experience a feeling of disgust. The first thought that comes to mind is, are they contagious?

If you do not take into account, rare dermatological pathologies, such as chicken pox, porferia, hypertrichosis and others, it is worth understanding how high the probability of invasion is. It is also important how you can protect your body from such a disease that can affect both people and animals.

• Cheeks.
• Chin.
• Eyebrow line.
• eyelids.
• Front and back of the neck.
• Shoulders.

In rare cases, the mite affects the skin of the back, head, and groin area. When infected with a tick, in the initial stage, bright symptoms of pathology appear. Characteristic signs appear as:

• Numerous pink pimples.
• Profuse loss of hair and eyelashes.
• The skin in the affected area acquires an earthy gray tint.
• Intense itching sensation and redness.
• Increased dryness and feeling of tightness of the skin.
• The pores on the face become more open, which leads to the formation of sebaceous plugs.
• The nose may increase in size.
• The development of conjunctivitis with the release of purulent exudate.

The main factors contributing to the infection with deodecosis are:

• Close contact with the patient, especially contact with hair, eyebrows and sebaceous glands.
• Use of shared bed linens.
• Failure to follow the rules of personal hygiene.
• Use of joint cosmetic products, clothing and personal hygiene products.

The fact that infection healthy body occurs when in contact with the patient, doctors do not classify demodicosis as a contagious disease. The argument for this is the presence of an opportunistic pathogen.

Provoking clinical signs of pathology is possible only when creating favorable conditions to activate the pathogen. Most often, this disease affects 1/3 of children, 2/3 of the elderly and half of adulthood.

How is demodicosis transmitted?

Doctors distinguish some pathological and physiological conditions caused by helminthic invasion and provoking its active reproduction on the skin. They should include:

• genetic predisposition.
• Diabetes mellitus of any type.
• Prolonged stress.
• Dysfunctions of the endocrine system.
• Weak immunity.
• Heredity.
• Frequent use of alcoholic beverages.
• Abuse of spicy foods and spices.
• Constant fatigue.
• The period of gestation of the intrauterine fetus.
• Prolonged exposure to ultraviolet rays on the skin.
• Regular visits to the solarium.
• Violation of the scheme of taking hormonal drugs.
• Issomnia.
• The tendency to develop allergic reactions in the body.
• Pathology of the liver.
• The use of cosmetics, which include hormonal drugs.
• Frequent visits to bath complexes and spa centers.

As a result, it is worth noting that demodicosis, and its causative agent, does not apply to pathology. But, the presence of physiological factors that provoke the activation of the subcutaneous tick contribute to negative impact on general state health of the human body.

Experts distinguish the following methods of infection:

• Kiss.
• Embrace.
• Use of clothing and hygiene items for the patient.
• Spending time together in bed.

In addition, the tick can enter the human body through bedding, pillows, feather beds and straw. But, if contact with an infected person is inevitable, experts recommend using liquid detergents daily. They should have antibacterial, antiseptic and anti-demodectic effects.

The likelihood that demodicosis is transmitted to a person is quite minimal. But, such a fact should not relax potential patients. Strict observance of the rules of personal hygiene and minimal contact with the infected will significantly reduce the likelihood of infestation with a subcutaneous tick.

Also an important factor is the observance of the fundamentals proper nutrition, the main point of which is the balance and use of all food groups. At the same time, it is necessary to exclude the use of alcoholic beverages, to stop smoking tobacco products. It would be useful to minimize, and ideally, eliminate stressful situations altogether.

If the first signs of the development of demodicosis appear on the skin, it is strictly forbidden to independently treat the disease. Timely application for qualified medical care will allow you to quickly and effectively cure this disease.

Therapy in the initial stage is gentle and is carried out in a shorter time. The neglected form of this pathology can cause serious damage to the skin, which will bring a lot of aesthetic discomfort.

Compliance with the standard rules of prevention will avoid the development of demodicosis in the body. And knowledge of the primary symptoms of this pathology will help in case of infection to respond correctly and provide qualified assistance.

When pink pimples are detected, it is strictly forbidden to squeeze them out on your own or pierce them with a needle. This way of getting rid of the visual manifestations of the disease will only aggravate the state of health and skin as well.

Useful video

And finally, a short video: