Reverse transcriptase is alsoknown as RNA-dependent DNA polymerase. In 1970, Temin et al. discovered aspecial DNA polymerase in oncogenic RNA viruses. The enzyme uses RNA as atemplate, dNTP as substrate, tRNA as a primer, and on the 3'-OH end of tRNA…
Introduction to festivals in Bhutan.…
Recently, some countries are short of electricity, or seek energy solutions, will this affect the bhutan holiday packages ?…
According to the monthly report of the International Energy Agency (IEA), the gap between European crude oil imports from Russia and the United States has narrowed sharply in the past few months, and the United States is in a position to replace Russ…
With the energy crisis, high inflation, and aggressive interest rate hikes by the European Central Bank, the economic outlook of the eurozone faces severe challenges. On September 13, local time, the European Economic Research Center in Germany relea…
For billionaires, the new crown epidemic is like a 'gold rush'! The Deutsche Presse-Agentur said on the 17th that in 2022, the wealth held by the world's top ten richest people will jump from $700 billion to $1.5 trillion, an average daily increase o…
Recently, the Bulgarian Gas Company said that Bulgaria is negotiating with Gazprom on resuming natural gas supply, and there is a possibility that Russia will resume natural gas supply to Bulgaria.Since the outbreak of the conflict between Russia and…
The secretary general of the Organization of Petroleum Exporting Countries (OPEC) said recently that US economic sanctions against Venezuela have affected global energy supplies. He told Venezuelan media that the ECONOMIC sanctions imposed by the Uni…
A tanker carrying 650,000 barrels of Venezuelan crude oil is reportedly bound for Europe, the first time Venezuela has exported crude to Europe in the past two years under US sanctions. It is analyzed that the U.S. is making up for the European ener…
About Spherical Graphite Powder:Spherical graphite (SPG), also known as battery-grade graphite, is a product consumed as an anode in lithium-ion batteries. The flake graphite concentrate is processed into ultra-high purity (>99.95%C) with a particle…
About Colloidal Gold Nano Gold Solution:Colloidal gold benefits:Nanogold is made by using high purity gold as raw material, through a special new processing technology to make gold particle size of 15nm or less, greatly improve the inherent character…
Recently, the Russian President hosted a meeting with oil and gas industry representatives. He said that the refusal of some Western countries to cooperate normally with Russia and deny some Russian energy resources has hit millions of European peop…
Is boron amorphous or crystalline?Boron can be prepared in several crystalline and amorphous forms. The well-known forms of crystallization are α-rhombohedral (α-R), β-rhombohedral (β-R) and β-tetragonal (β-T). In spec…
What is copper oxide?Copper oxide is an inorganic substance. Copper oxide chemical formula is CuO. It is a black oxide of copper. Slightly bisexual and slightly hygroscopic. Insoluble in water and ethanol, easily soluble in acid, thermally stable, de…
What is the use of aluminum oxide?Medical professionBecause of its hardness, bioinertia and chemical properties, alumina is the preferred material for hip replacement bearings, such as prosthetics, bionic implants, prosthetic eye substitutes, tissue…
What is copper and nickel alloy called?There are a series of different CuNi alloy, which have different properties and can be used for different purposes, including:Cupronickel: containing 60-90% copper.Constantan: 45% nickel.Monel: at least 52% nick…
Monel alloy is a kind of nickel-copper alloy.…
The US Commerce Secretary has announced that the US will temporarily lift tariffs imposed on Ukraine during the Trump administration to help Ukraine recover its economy and continue to show support for the Russia-Ukraine situation. "For steel mills t…