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Pakistan Telecommunication Company Ltd., commonly known as PTCL (Urdu: پاکستان ٹیلی کمیونیکیشن کمپنی لمیٹڈ) is the national telecommunication company in Pakistan. [ 1 ] [ 3 ] PTCL provides telephone and internet services nationwide and is the backbone for the country's telecommunication infrastructure.
The industry grew through the 1800s, driven by the demand for kerosene and oil lamps. It became a major national concern in the early part of the twentieth century; the introduction of the internal combustion engine provided a demand that has largely sustained the industry to this day.
DNA replication. DNA Polymerase I (PDB) Molecular mechanism of PCR. A strip of eight PCR tubes. The history of the polymerase chain reaction (PCR) has variously been described as a classic "Eureka!" moment, [1] or as an example of cooperative teamwork between disparate researchers. [2] Following is a list of events before, during, and after its ...
Petroleum became a major industry following the oil discovery at Oil Creek, Pennsylvania, in 1859. For much of the 19th and 20th centuries, the US was the largest oil producing country in the world. US regained the position of the largest oil producing country in the world in 2018 and has it kept every year since as of 2022. [1] [2] [3]
Petroleum resources in Alberta. The discovery of the Leduc oil field in 1947 with Leduc No. 1, striking oil, ushered in a twenty-year period of intense exploration, new discoveries, and rapid expansion of Alberta's oil industry. The discovery of Leduc No. 1 led to a rapid population boom in Alberta.
It is a wholly owned subsidiary of Pakistan Telecommunication Company Limited. Following PTCL 's privatization, Ufone became a part of Etisalat by e& in 2006. Ufone is mobile service provider in Pakistan with a subscriber base of 26 million as of August 2024, among which 16 million are 4G/LTE subscribers. It has a market share of 13%, the least ...
(H 3 O) 2 PtCl 6 ·nH 2 O ⇌ PtCl 4 + 2 HCl + (n + 2) H 2 O PtCl 4 ⇌ PtCl 2 + Cl 2 PtCl 2 ⇌ Pt + Cl 2. All three reactions are reversible. Platinum(II) and platinum(IV) bromides are known as well. Platinum hexafluoride is a strong oxidizer capable of oxidizing oxygen.
Petronas. Petroliam Nasional Berhad, commonly known as PETRONAS (stylized in all caps), is a Malaysian multinational oil and gas company headquartered in Kuala Lumpur. Established in 1974, it is a legal entity incorporated under the Malaysian Companies Act 1965 and reports to the company's Board of Directors.