Public policy is the main category of public management research in the world at present, but it is still in its infancy and development period in China. Traditional public policy research originates from political science and administrative science, aiming at discussing the balance of interests between the state, society and citizens in a normative sense. Through the analysis of the principles and models of political science and administrative science, it studies the formulation, implementation and evaluation of policies at the national, local and group levels, thus providing suggestions for high-quality public policies.
However, since the 20th century, especially since the middle and late 20th century, the development of social science is facing unprecedented challenges. The debate between qualitative analysis and quantitative analysis, and the division between normative research and empirical research have made the development of the whole social science enter a complex and chaotic era. In this era, it is inevitable to introduce quantitative analysis techniques and methods of mathematics, natural science, engineering science and computer technology into social science research. The quantitative analysis method is introduced into social science research, so that social science can truly become a science and be given a second life.
2. Who knows the three primary colors of the article about red, yellow and blue?
The so-called primary color, also known as the first color, or primary color, is the basic color used to reconcile other colors. The purity of primary colors is the highest, purest and most vivid. Most colors can be mixed, and other colors cannot be mixed with three primary colors. In the understanding of the concept of three primary colors, we are basically the same as the textbook. Three primary colors are divided into two categories, one is the primary color of color and light, which is called additive three primary colors; The other is pigment (dye) tricolor, also known as subtractive tricolor. The latter is described in art books.
The mixing of the three primary colors of pigments, also known as subtractive mixing, is the reduction of light. After the two colors are mixed, the luminosity is lower than their original luminosity. The more color combinations, the more light absorbed, and the closer it is to black. Therefore, the more blending times, the worse the purity, the more it loses its simplicity and distinctiveness. The mixture of tricolor pigments should be black in theory, but it is actually a black turbid color with extremely poor purity, and it can also be considered as a dark gray with extremely low luminosity. Magenta and green, yellow and purple, cyan and orange, and the mixture of each group of colors is close to black.
Art textbooks talk about the use of painting pigments. I see that most textbooks and works call red, yellow and blue the three primary colors. However, the situation in art practice and production operation is not consistent with what the textbook says. Yellow, magenta and cyan are the three primary colors in color printing, the principle and production of color photos, the design and practical application of color printers. Color printed matter is printed with yellow, magenta, cyan ink and black ink, and the printing in four-color printing is a typical example. In the imaging of color photos, the three emulsion layers are yellow at the bottom, magenta in the middle and cyan at the top. All brands of color inkjet printers also print color pictures with yellow, magenta, cyan and black ink cartridges. By definition, primary colors should be able to modulate most other colors, and none of them can modulate primary colors. Artistic practice has proved that magenta with a small amount of yellow can set off scarlet, but scarlet can't set off red; Adding a small amount of magenta to green can get blue, and blue and white can get dark blue; More colors can be mixed with yellow, magenta and cyan, which are pure and bright. For example, the green mixed with green and yellow is purer and brighter than the green mixed with blue and yellow, while the latter is darker; Magenta and blue are pure purple, red and blue can only get gray purple and so on. In addition, from the perspective of integrating other colors, yellow, magenta and cyan are all their primary colors, with richer colors and purer and brighter colors.
To sum up, whether from the definition of the three primary colors or verified by the practical application results, it is enough to show that yellow, magenta and cyan are called the three primary colors, which is more appropriate than red, yellow and blue.
3. Composition on the topic of color The first second you open your eyes, the world is gray. After that, my parents showed me many photos. One of them is a pattern with five rings connected together. Although the colors are different, I can't see the difference. Because, I don't know such and such colors yet, they are consistent in my eyes.
I made friends in kindergarten when I was 3 years old. Although it is a hazy memory, I still remember the traces they left. Bright red, dazzling yellow, soft blue. Three beautiful colors lit up the starry sky.
5 years old, I have contacted some people. Ignorantly discovered the beauty of this world, and more colors were integrated into it. The world is no longer monotonous, with more lovely pink, purer white and more beautiful purple. So I laughed.
At the age of 8, I entered primary school life. I began to gradually adapt to the life with homework and discipline. Then I found a wonderful thing-yellow and blue mixed together is the green of grass, and yellow and green mixed together is the blue of the sky. They cross each other, but another color appears.
10 years old, growing rapidly. I finally know that besides kindness, there is another color, black. It is a mixture of red, yellow and blue. Silly looking at the intrigue between classmates, but unconsciously painting without black.
12 years old, my world has become colorful. No matter who you are, you can find your own color in it. I also understand that black has a white side, and white also hides its black face. People describe them not only as "beautiful, beautiful, lovely and dazzling". Passionate red, lively orange, hopeful yellow, energetic green, strong cyan, fresh blue, noble purple, warm brown, sacred white, energetic gray, mysterious black and glorious gold.
And the color is not just the original self. Green symbolizing environmental protection, the olive branch is placed in a happy place, and the green olive branch restores the vitality of the earth. Red and yellow make up the flying national flag, which shows that we are proud of China people.
After experiencing all kinds of things, I found that there is a color that people all over the world can see.
It has been with me since I was born. It is the most beautiful color in the world, and it is the beauty of five colors. This is the Olympic rings.
Yellow represents Asia, black represents Africa, blue represents Europe, red represents America, and green represents Oceania. Every country can find the color of the national flag in it. It symbolizes the unity of the people on five continents and inspires the Olympic spirit!
Blue, black, red, yellow and green are closely linked, forming the most brilliant stroke in the world.
The gorgeous color of the five rings-that's the color in my eyes.
4. Write a short essay of more than 800 words on the topic "The Color of Life". Each of us has our own color of life, which we choose with our heart, which is subtle, passionate and straightforward ~ ~ ~ which is the embodiment of our different pursuits, so choose with our heart!
green
Did you hear that? Buddha Violet, is that you? Your bohemian character doomed you to an extraordinary life. Therefore, it also creates your vivid color. You let lux take off his boots, the imperial concubine poured you wine, the emperor respects you, and the people love you. But because of the fatuity of the emperor, you were banished to the other side, struggling and missing all day long. However, your broad-minded mind accepted all this, and we seemed to see you drunk, holding a pen in your hand, and saying, "Although you drowned with wine, since the water is still flowing, you can cut it with a sword." That touch of green left an indelible impression in my heart. Are you excited? Choose carefully!
red
I seem to see you in red again, standing by the river, mourning for the country and the people. Qu Yuan, a great patriotic poet. You bemoan the incompetence of the monarch and the displacement of the people because of the war, and you feel sorry for your fate. I have been an official for so many years, but I have not realized my lofty ideals. You looked at the river and thought it might wash away the filth of officialdom and the dust of soul, so you jumped down and chose an open-minded way to accept it with your heart! That touch of red seems to be a scar in people's hearts. Are you excited? Choose carefully!
ash
Is that you? The one who is always worried about the people of the country? Du fu? You, a poet who saw the decline of the country and the suffering of the people, are getting older and older under the torture of ruthless war and wind and frost. In the cold, you want to "live in a vast building, which is a great shelter for all the poor in the world". What qualities do you have? Although your fate is gray, you still face it calmly. That plaster won't stop your glorious image. Are you excited? Choose carefully!
black
You are Mr. Lu Xun who holds a pen for the people's revolution! Your article reveals your serious but black humor. When you were in troubled times, you resolutely gave up your ideal of serving the people and defended the dignity of the people with your pen. Black is your character and the color of your life. Left an indelible mark in the long river of history. Are you excited? Choose carefully!
We have different choices and different pursuits, just like those celebrities, I hope we can choose a color that suits us with our heart! Even if we have different pursuits, we should choose with our heart! Are you excited? Choose carefully!
5. What is the color of life in my eyes? Columbus said: It's blue. I have been with the sea all my life. Blue is inclusive and broad.
Yuan Longping said: It is green. For fifty years, I have been working in Longmu. Green is dedication and hope. The nightingale said, it's white. I like the white life. White is love and responsibility.
Helen Keller said: Black, I live bravely in the dark. Black is unyielding and hard-working. Lenin said: It is red. I have been fighting for the liberation of mankind all my life. Red is a battle and an ideal.
In fact, everyone has their own different views on color, and everyone also has their own color. From the moment we were born, we began to add color to our lives.
Nature is colorful, blue sky and white clouds, green mountains and green waters, and life is certainly colorful. Give you a blank sheet of paper. What color will you paint it? Give you one life, what color would you choose? In the endless war, in the fear of the people, in the ruins of suffering, Rabin chose green and peace.
He picked up an olive branch and handed it to Arafat. He described his life with strong colors for future generations to recall and admire. Perhaps, at that time, this rich color was too far away from us; Perhaps, what belongs to us is only a sense of tranquility and serenity: then paint life with a faint color.
You think that "if you are not indifferent, you can't be clear, and if you are not quiet, you can't be far away." Just like Mr. Wu Liu, you can also have the comfort of "seeing Nanshan leisurely" Painting life with a faint color can also interpret a beautiful life with a different flavor.
In a colorful world, every color is indispensable. Colorful life also needs colorful life forms.
If you like the sanctity of ice, then paint life white; If you like fire-like enthusiasm, paint your life red; If you like pine-like green, you might as well paint your life green; If you have a soft spot for Xiang Tao, you will paint your life with gold ... The color in my eyes has deeply rejected darkness, because it is not as gorgeous as light, and it only gives people endless sorrow and hope. -the inscription enjoys the darkness alone.
I fell in love with the darkness unconsciously. In my friend's photo album, I left a darkness.
I said, take this quiet darkness as me. I used to admire white persistently, but later I found that white was too pure and real to tolerate any noise, which made people feel false, just like I used to.
Although black does not have the enthusiasm and boldness of red, the freedom and hope of yellow, and the nobility and elegance of purple, it has its own unique beauty: massiness and simplicity. When the tired sun hurried off work, I closed the curtains alone and enjoyed the peace.
In the opaque world, there is no meaning in my eyes except darkness, and I can't see my existence. But that's not important. The important thing is that my heart is going on and my mind is running at full speed.
It is best to make a pot of black coffee in the dark and smell the aroma of coffee, which can accompany you all night. You can remember the past without closing your eyes.
I can laugh when I see happiness and wantonness; I can cry when I see sadness. Don't worry that others will spy on your true side. At this time, only darkness is with you, and heaven and earth are your only friends.
Take out the most precious things in your heart, share them with the earth and enjoy them with the sky. Look up at the twinkling stars in the night sky. They all embraced their little secrets in the dark! Darkness, let me learn to enjoy in the dark, and gain strength from enjoyment-tenacity and tenacity.
When the aroma of coffee in the room gradually dissipated, I opened the curtains, and the darkness in the distance quietly sent the little secret of dim light to your ears. Enjoy the darkness alone, don't think that black is the keynote of sad losers, and darkness is the thoughtful eyes of smart and wise people.
Exclusive darkness, exclusive dark fun, exclusive dark spirit, exclusive dark freshness. Other people's works are for reference only.
6. Write a composition with the theme of "green" or "green". May green last forever.
Once heard a story, the old man unfortunately got stomach cancer, and the old lady was very sad. In order not to make her sad, the old man smiles every day. In the morning, his wife always helps him take a walk by the lake. One spring morning, two old people were still sitting on a stone bench by the lake, enjoying the charming scenery. At this time, the old man is a little abnormal. His eyes did not stare at the rising sun in Ran Ran on the horizon, nor at the waterfowl fluttering on the surface of the lake, but at the green grass. The old lady deliberately changed the subject and said, "Look, how red the sun is!" The old man didn't respond and still stared at the grass. After a while, the old man suddenly said to the old lady, "The grass is really green! I wonder if I can see it again next year. Life is short! "
This is a real thing, and the feelings of the old people who are about to come to the end of their lives can not but cause us to think about life and question the value of life. Everyone will probably miss green when they reach the end of their journey. Because green symbolizes life, green gives people a vision and touches people's attachment to life.
Life is full of vitality, youth breeds vitality, and green always inspires people to cherish life and youth. Everyone who has life has the right to have the green of life, no matter young or old. The green of this life is discovered by everyone who owns it for himself. As long as there are beautiful ideals, persistent pursuit and lofty morality, there will be a green life. This kind of green makes people cherish life, examine life, position life on a meaningful coordinate, let people master the steering wheel of life and sail to the other side of success.
Life is limited, and there are many years. Don't wait to see young people's heads turn white, empty and sad. Young and ignorant, time is white; Youth is confused and time flies; Middle-aged labor, years pay for water; How much is left when you wake up when you are old? Life in 60 or 70 years passes quickly, and life is too short to tell. "Confucius said in Sichuan: the deceased is like a husband", "You didn't see the lovely lock in the bright mirror on the high building. Although it was black in the morning, it turned into snow at night" ... All the sages of life lamented the hasty passing of the green of life.
To accumulate the green of life is to pay for life. Life is like a candle, and time is the exchange of light and matter. Some candles will turn into light, and some will turn into crystal tears, quietly flowing through our eyes, but that will always be our growth footprint. You just walk with your head down and have no time to pay attention to the scenery on the roadside. You may be lonely and miserable, but your scenery is ahead.
Green has given us fresh and holy * * *, but it has given us more inspiration for life. Human life is like a tree, which needs nourishment and water. The beauty of life lies in every process, not the result of life. Every process is beautiful, so what is left is beautiful memories.
Let's cherish life, prolong the life of the elderly, and let green stay in the world forever and grow into a towering tree.
Self-identity of high school graduates: 200 words 1
I have a wide range of hobbies, like listening to music and sports,