Today, the gates of many schools across the country have become a gathering place for unlicensed vendors. How to ensure children's food safety and guide them to a healthy diet? Some children think that school canteens and home meals do not fit the taste, and they would like to eat off

First, choose the soil with deep soil, high fertility, and the output index is 400-500 kg per acre of dry-land wheat fields with water-free conditions. Rational rotation can maintain the soil nutrient balance, adjust the accumulation and consumption of various nutrients, restore and improve soil f

In spring, it is not only the humidity of the air, but also the moisture in the human body. If the body's moisture accumulates, it will induce various diseases such as rheumatism, arthritis, gastrointestinal problems, and skin problems. When the economy is used for solar energy, people can use

Humic acid is a black or brown amorphous high-molecular organic compound that is hardly soluble in water, but has colloidal properties, can improve soil structure and increase soil fertility; it has chelating action, can increase the nutrient activity of phosphorus, potassium and trace elements an

Release date: 2015-05-07 When you brush your teeth in the morning, you can check your risk of cancer or Alzheimer's. This convenient way is not far from us. Clive Brown, chief technology officer of a British company, said at a medical conference on the 24th that with the help of nanopore ge

Understanding the physiological characteristics of ducklings Ducklings generally refer to ducklings from 0 weeks to 4 weeks of age. Freshly hatched young ducks have short hairs, poor ability to regulate body temperature, and often require artificial insulation; ducklings have not yet been fully d

Release date: 2015-05-13 Médecins sans Frontières said on the 9th that Liberia, one of the worst-affected areas in Ebola, West Africa, has not had new confirmed cases for 42 consecutive days, and the Ebola outbreak has come to an end. However, a news released by the US "New York Time

Experimental principle Gel Migration or Electrophoretic Mobility Assay (EMSA) is a technique for studying the interaction of DNA-binding proteins with their associated DNA-binding sequences for qualitative and quantitative analysis. This technique was originally used to study DNA binding proteins

Patients with schizophrenia often have problems with sleep disorders, which used to be thought to be a side effect of schizophrenia, but recent research suggests that poor sleep may also be a cause of schizophrenia. The problem is, schizophrenia patients themselves usually do not not

Commonly used blanks for machining include castings, forgings, profiles and welded parts. Different blank types and the accuracy, roughness and hardness of the blank have a direct impact on the machining process. The following factors should be considered when selectin

Due to the widespread occurrence of tinea and the difficulty in prevention and control, fewer and fewer farmers have planted leeks in recent years, and the cultivation area of ​​leeks has been greatly reduced. The leeks planted in greenhouses can occur all year round. The damaged par

Release date: 2015-05-06 Although human civilization has prospered to this day, although there have been unprecedented breakthroughs in medical technology, there are still many intractable medical experts who are still at a loss. However, scientists are convinced that in the next few decades, t