As the basic principles of ecology, it is most reasonable to choose such rules and laws that will allow structuring the accumulated scientific knowledge, systematizing and generalizing it. This approach will allow us to develop a procedure for human action aimed at implementing the ecological paradigm. Last modified: 2025-01-23 12:01
Science
Theories of local self-government offer different recipes for the coexistence of municipalities and the state. Last modified: 2025-01-23 12:01
In modern psychology there is a whole section devoted to gender studies. The study of differences between representatives of both sexes, as members of society, should contribute to a better mutual understanding between men and women. Last modified: 2025-01-23 12:01
The works of the scientist concerning the creation of an oil base between the Volga and the Urals are endowed with important theoretical and practical meaning. In the early 20s of the 20th century, Ivan Mikhailovich made a proposal for a mandatory detailed study of the geology of this area. Last modified: 2025-01-23 12:01
XRF (X-ray fluorescence analysis) is a physical analysis method that directly determines almost all chemical elements in powder, liquid and solid materials. Last modified: 2025-01-23 12:01
Here the reader will find general information about what heat transfer is, and will also consider in detail the phenomenon of radiant heat transfer, its obedience to certain laws, the features of the process, the formula of heat, the use of heat transfer by man and its course in nature. Last modified: 2025-06-01 07:06
Even at the beginning of the 20th century, before the First World War, when time was measured and unhurried, ladies wore corsets, and women who were already married had to observe decency (housekeeping and stay at home), Curie Maria was awarded two Nobel Prizes: in 1908 - in physics, in 1911 - in chemistry. Last modified: 2025-01-23 12:01
Pierre Curie (May 15, 1859 – April 19, 1906) was a French physicist, a pioneer in crystallography, magnetism, piezoelectricity and radioactivity. Last modified: 2025-06-01 07:06
This article is devoted to the topic of absorbed radiation dose, ionizing radiation and their types. It contains information about diversity, nature, sources, calculation methods, units of absorbed radiation dose and much more. Last modified: 2025-01-23 12:01
Igor Kurchatov helped his country to enter the technological era of the last half of the twentieth century, forming a dual direction of development of atomic energy in the Soviet Union. If he had focused only on the creation of weapons, then the peaceful use of nuclear energy (nuclear power plants) might not have appeared soon. Last modified: 2025-06-01 07:06
The expression "peaceful atom" was extremely popular in the Soviet era. At that time, this phrase symbolized the triumph of nuclear energy. But does she have a future now? And is the atom really so peaceful?. Last modified: 2025-01-23 12:01
What is radioactive material? What are the natural and man-made sources of radioactive substances? How are they transported? Read in the article. Last modified: 2025-01-23 12:01
Groups of roses, their classification and representatives were the subject of study at school. The rose is probably the most divine flower (at least on the territory of our country, and indeed the entire post-Soviet space). This plant is not without reason loved by almost all women. Last modified: 2025-01-23 12:01
Enzymes perform the function of regulating all reactions occurring in the cell. These amazing compounds are capable of accelerating a wide variety of processes. All of them have a protein nature and are divided into groups according to their functions. Last modified: 2025-06-01 07:06
The number sequence and its limit have been one of the most important problems in mathematics throughout the history of this science. Constantly updated knowledge, formulated new theorems and proofs - all this allows us to consider this concept from new positions and from different angles. Last modified: 2025-01-23 12:01
Life without protein is impossible. The importance of proteins for the body lies in the fact that they serve as a material for building cells, tissues and organs, the formation of enzymes, most hormones, hemoglobin and other substances that perform the most important functions in the body. The role of proteins in the body is also that they are involved in protecting the body from infections, and also promotes the absorption of vitamins and minerals. Last modified: 2025-01-23 12:01
The term "real gases" among chemists and physicists is used to call such gases, the properties of which most directly depend on their intermolecular interaction. Although it can be read in any specialized reference book that one mole of these substances under normal conditions and steady state occupies a volume of approximately 22.41108 liters. Last modified: 2025-06-01 07:06
Among all cyclic thermodynamic processes, the Carnot cycle has a special theoretical significance and practical application. Often it is called unsurpassed, great, ideal, etc. And for many, it generally seems to be something mysterious and incomprehensible. However, if all the accents are correctly placed, then all the simplicity, genius and beauty of this invention, which was discovered by the French scientist and engineer Sadi Carnot, will instantly open up. Last modified: 2025-01-23 12:01
Momentum refers to the fundamental, fundamental laws of nature. It is directly related to the symmetry properties of the space of the physical world in which we all live. Last modified: 2025-01-23 12:01
Gauss's theorem is one of the fundamental laws of electrodynamics, structurally included in the system of equations of another great scientist - Maxwell. It expresses the relationship between the intensity flows of both electrostatic and electrodynamic fields passing through a closed surface. The name of Karl Gauss sounds in the scientific world no less loudly than, for example, Archimedes, Newton or Lomonosov. Last modified: 2025-01-23 12:01
Types of proteins in the body. Structure, functions and properties of polypeptide molecules. Denaturation and renaturation of peptides, hydrolysis. Structure of protein molecules. Last modified: 2025-01-23 12:01
Nature allows a person to enjoy the benefits that are available in it. At the same time, people are trying to increase these riches, create something new and learn about the unknown. Bacteria are the smallest creatures of nature, which people have also learned to use for their own purposes. Last modified: 2025-01-23 12:01
Without the acidic properties of certain substances, the existence of the world around us is impossible. In this article we will talk about what they are and how they manifest themselves. Last modified: 2025-01-23 12:01
In the most generalized sense, an associative series is a set of elements related to each other by some common feature. Last modified: 2025-01-23 12:01
The genomes of different organisms have different numbers of chromosomes. This applies to both animals and plants. This is due not so much to the different complexity of the organization of living organisms as to the size of the chromosomes and the mass of the DNA molecule, which can carry long sections that do not have genes. Last modified: 2025-01-23 12:01
Animal species are very diverse in karyotype. Moreover, the number of chromosomes in the nuclei of cells of various animals does not depend on the complexity of the organization of a living being. How many chromosomes do dogs have? Does this number differ from the number of chromosomes of a wolf, a fox?. Last modified: 2025-06-01 07:06
It is Carl Linnaeus who is considered the founder of modern taxonomy, because he did the greatest work on establishing the principles of classification of living organisms. These principles are still in use today. Last modified: 2025-01-23 12:01
General concept of transgenic plants. Technologies for their production. Advantages and disadvantages. Prospects for the development of the genetic engineering industry. Last modified: 2025-01-23 12:01
Carbon dioxide is an acidic oxide that occurs naturally and is a metabolic product of flora and fauna. Its accumulation in the atmosphere is the trigger of the greenhouse effect. Carbon dioxide, when interacting with water, forms an unstable carbonic (carbonate) acid, which can decompose into water and carbon dioxide. Last modified: 2025-01-23 12:01
The phrase "internal environment of the body" appeared thanks to the French physiologist Claude Bernard, who lived in the 19th century. In his works, he emphasized that a necessary condition for the life of an organism is to maintain constancy in the internal environment. This provision became the basis for the theory of homeostasis, which was formulated later (in 1929) by the scientist W alter Cannon. Last modified: 2025-01-23 12:01
Comparative method: application, theoretical and practical significance, scope. Comparative method in psychology and jurisprudence. Last modified: 2025-01-23 12:01
Science is a sphere of human professional activity, like any other - industrial, pedagogical, etc. Its only difference is that its main goal is to obtain scientific knowledge. This is its specificity. Last modified: 2025-01-23 12:01
The roots of modern legal science go back centuries. Knowledge of law and law appeared in antiquity. Last modified: 2025-01-23 12:01
What are applied sciences? What value do they have? Why develop? What is their importance to society?. Last modified: 2025-01-23 12:01
Theory of knowledge is the doctrine of the process of accumulating new knowledge and how humanity comprehends the world around us and the causal relationships that operate in it. No one doubts that from generation to generation we pass on to our descendants an increasing amount of knowledge. Old truths are supplemented by new discoveries in various fields: science, art, in the sphere of everyday life. Thus, cognition is a mechanism of social communication and continuity. Last modified: 2025-01-23 12:01
There are many foods that we are accustomed to consume daily. S alt is one of them. This product is associated not only with our nutrition, but also with life in general. Our article describes various types of s alt. In addition, you can find out its positive and negative qualities, as well as the daily rate of its use. Last modified: 2025-01-23 12:01
Endothelial cells play a huge role in the human body. They take part in blood circulation, vascular homeostasis, as well as regeneration and development of new blood vessels. What are they like? What are important for a person and what is their function? The answers to these questions are given in the article. Last modified: 2025-01-23 12:01
Liquid is one of the states of aggregation of gas, but only at the beginning of the last century people first received liquefied air. Last modified: 2025-01-23 12:01
There are three groups of explosives with different susceptibility to external influences and different types of explosion. These include: initiating, propelling, as well as blasting substances. This article provides information about blasting explosives and their areas of application. Last modified: 2025-01-23 12:01
Today, the Russian Federation has the most powerful space industry in the world. Russia is the undisputed leader in the field of manned cosmonautics and, moreover, has parity with the United States in matters of space navigation. Some lags in our country are only in the research of distant interplanetary spaces, as well as in the development of remote sensing of the Earth. Last modified: 2025-01-23 12:01