Mop

A mop (such as a floor mop) is a mass or bundle of coarse strings or yarn, etc., or a piece of cloth, sponge, or other absorbent material, attached to a pole or stick. It is used to soak up liquid, for cleaning floors and other surfaces, to mop up dust, or for other cleaning purposes. The word (then spelled mappe) is attested in English as early as 1496, but new refinements and variations of mop designs have been introduced, from time to time. For example, American inventor Jacob Howe received U.S. patent #241 for a mop holder in 1837 and Thomas W. Stewart (U.S. patent #499,402) in 1893.

Types

Dry-mop, dust-mop

A dry-mop or dust-mop is designed to pick up dry, loose contamination such as dust, earth and sand from the surface of the floor. It consists of yarn and/or microfiber and is used as a first step in cleaning a floor.

Professional dry mops consist of a flat sheet of microfiber textile or sheets with a surface of looped yarn, usually about 15 cm (6 in) wide, and comes in variable lengths (usually 30–100 cm (12–39 in)).

Methoxsalen

Methoxsalen — also called xanthotoxin, marketed under the trade names Oxsoralen, Deltasoralen, Meladinine — is a drug used to treat psoriasis, eczema, vitiligo, and some cutaneous lymphomas in conjunction with exposing the skin to UVA light from lamps or sunlight. Methoxsalen modifies the way skin cells receive the UVA radiation, allegedly clearing up the disease. The dosage comes in 10 mg tablets, which are taken in the amount of 30 mg 75 minutes before a PUVA (psoralen + UVA) light treatment. Chemically, methoxsalen belongs to a class of organic natural molecules known as furanocoumarins. They consist of coumarin annulated with furan. It can also be injected and used topically.

Natural occurrences

Methoxsalen is extracted from Ammi majus, a plant of the family Apiaceae. The substance is also present in other Apiaceae as well as Rutaceae, for example bergamot oil which is used in many perfumes and aromatherapy oils. When these products are applied to skin and exposed to UVA radiation, the skin may turn brownish due to the phototoxic effects of methoxsalen present in the bergamot oil. Most modern perfumes containing bergamot have the Methoxsalen removed.

NPAS1

NPAS1 is a basic helix-loop-helix transcription factor.

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Steam

Steam is water in the gas phase, which is formed when water boils. Steam is invisible; however, "steam" often refers to wet steam, the visible mist or aerosol of water droplets formed as this water vapor condenses. At lower pressures, such as in the upper atmosphere or at the top of high mountains, water boils at a lower temperature than the nominal 100 °C (212 °F) at standard temperature and pressure. If heated further it becomes superheated steam.

The enthalpy of vaporization is the energy required to turn water into the gaseous form when it increases in volume by 1,700 times at standard temperature and pressure; this change in volume can be converted into mechanical work by steam engines such as reciprocating piston type engines and steam turbines, which are a sub-group of steam engines. Piston type steam engines played a central role to the Industrial Revolution and modern steam turbines are used to generate more than 80% of the world's electricity. If liquid water comes in contact with a very hot surface or depressurizes quickly below its vapor pressure, it can create a steam explosion. Steam explosions have been responsible for many foundry accidents, and may also have been responsible for much of the damage to the plant in the Chernobyl disaster.

Montreal hot dog

The Montreal hot dog is one of several variations of hot dogs served as a fast food staple at restaurants and diners in Montreal and other parts of Quebec.

In Montreal (and elsewhere in the province of Quebec), the hot dog buns generally used in restaurants are top loading (New England style) hot dog buns, rather than the side loading hot dog buns generally used in other parts of Canada. Montreal hot dogs are considered to be rather small and are generally sold for between $0.50 and $1.00 depending on the area of purchase and dressing. Popular brands include Lesters, Lafleur's, and Glatt's kosher.

The city of Montreal did not permit street food carts from 1947 until 2011, leading to a proliferation of small "greasy spoon" restaurants which are variations on the classic Québécois casse-croute (snack-type) restaurants. These restaurants serve hot dogs with fresh-cut fries (patates frites, often served “very brown and greasy”), poutine, hamburgers, pogos (corn dogs), hamburger steaks, in addition to Greek dishes (typically souvlaki and gyro), pizza, and smoked meat. Restaurant chains known for their hot dogs include La Belle Province, Valentine, and Lafleur Restaurants. One longstanding Montreal independent restaurant that offers hot dogs is the Montreal Pool Room.

Glossary of poker terms

The following is a glossary of poker terms used in the card game of poker. It supplements the glossary of card game terms. Besides the terms listed here, there are thousands of common and uncommon poker slang terms. This is not intended to be a formal dictionary; precise usage details and multiple closely related senses are omitted here in favor of concise treatment of the basics.

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

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T

U

V

W

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