Search results
Results from the WOW.Com Content Network
The HP-27S was a pocket calculator produced by Hewlett-Packard, introduced in 1988, and discontinued between 1990 and 1993 (sources vary). It was the first HP scientific calculator to use algebraic entry instead of RPN , and though it was labelled scientific , it also included features associated with specialized business calculators.
The HP 35s (F2215A) is a Hewlett-Packard non-graphing programmable scientific calculator. Although it is a successor to the HP 33s, it was introduced to commemorate the 35th anniversary of the HP-35, Hewlett-Packard's first pocket calculator (and the world's first pocket scientific calculator). HP also released a limited production anniversary ...
A 2016 systematic review has found that periodontal therapy (the use of mouthwash, tooth brushing, and manual removal of dental plaques) may have a role as an added treatment for short- and long-term follow up. For these results to be confirmed with regards eradication and non-recurrence, larger studies need to be carried out. [11]
[154] [155] One 2014 review found that supplements had no significant effect on cancer risk. [155] Another 2014 review concluded that vitamin D 3 may decrease the risk of death from cancer (one fewer death in 150 people treated over 5 years), but concerns with the quality of the data were noted. [156]
Anthony Frank Iommi Jr. [1] (born 19 February 1948) [2] is an English musician. He co-founded the pioneering heavy metal band Black Sabbath, and was the band's guitarist, leader, primary composer, and sole continuous member for over five decades.
[27] [28] An average cigarette yields about 2 mg of absorbed nicotine. [29] The estimated lower dose limit for fatal outcomes is 500–1,000 mg of ingested nicotine for an adult (6.5–13 mg/kg). [ 27 ] [ 29 ] Nicotine addiction involves drug-reinforced behavior, compulsive use, and relapse following abstinence. [ 30 ]
[79] A 2023 review "discusses the electrochemical principles involved in the recovery of metals from aqueous solutions and fused salt electrolytes", with particular attention paid to titanium. While some metals such as nickel and copper can be refined by electrowinning at room temperature, titanium must be in the molten state and "there is a ...
After tablets came "computer acid" or "blotter paper LSD," typically made by dipping a preprinted sheet of blotting paper into an LSD/water/alcohol solution. [ 208 ] [ 209 ] More than 200 types of LSD tablets have been encountered since 1969 and more than 350 blotter paper designs have been observed since 1975. [ 209 ]