scanning tunneling microscope
scanning tunneling microscope device for studying and imaging individual atoms on the surfaces of materials. The instrument was invented in the early 1980s by Gerd Binnig and Heinrich Rohrer, who were awarded the 1986 Nobel prize in physics for their work. The underlying principle of the microscope is the tunneling of electrons between the sharp tip of a probe and the surface of the sample under study. The flow of electrons is extremely sensitive to the distance between the tip and the sample. As the tip is swept over the surface the height of the tip is continually adjusted so as to keep the flow of electrons constant. A map of the "bumps" on the surface is then obtained by accurately recording the height fluctuations of the tip.
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Walls, "states" and resistance
Magazine article from: The Washington Report on Middle East Affairs; 9/1/2003; ; 700+ words
; The apartheid wall currently under construction by Israel...cities are permanently besieged behind walls, poverty and hopelessness will force...the significance of the apartheid wall. Physically, the wall has two distinct forms. In much of...
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Wall-associated kinases are expressed throughout plant development and are required for cell expansion
Magazine article from: Plant Cell; 2/1/2001; ; 700+ words
; ...biosynthesis and modification of cell wall components and downstream cytoplasmic...dynamics and synthesis of the cell wall are coordinated with cytoplasmic...uncharacterized. Developing cells have walls that are composed of cellulose...secreted by vesicles. The cell wall also includes ...
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Wall systems go to school.
Magazine article from: Walls & Ceilings; 12/1/2003; ; 700+ words
; ...specification for wall systems in a particular...introduction to these walls and their use in...In the past, wall systems were installed...Not in schools. Walls are not relocated...parts with masonry walls and tile floors. The best wall systems utilize...
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Walls, pavers getting trendy. (LM Reports).(Brief Article)
Magazine article from: Landscape Management; 7/1/2002; ; 700+ words
; ...segmental retaining wall (SRW) industry is...tumbled, random pattern walls, which are used to...your neighbor's wall "They (weathered random pattern walls) don't look like...ROCKWOOD RETAINING WALLS 888/288-4045 Rochester...Classic retaining wall units are easy to...
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 "Naperville Sun, The (IL)")
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Natural-stone walls look great, wear better
Newspaper article from: Naperville Sun, The (IL); 10/31/2001; ; 700+ words
; ...of one tall retaining wall, you can make smaller walls and terrace the land in...drain from behind the wall. One reason many mortared walls tip is that soil behind...foot of height for both walls to the top of wall width and you will know...
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Walls That Talk, in Harmony; At the Nigerian Embassy, a Sweeping Curve of Stone Meets a Rectangle of Glass
Newspaper article from: The Washington Post; 3/16/2002; ; 700+ words
; ...the building's two walls. The one is "Roman...a powerful masonry wall. Sheathed in an attractive...dramatizes the end of one wall and the beginning...emphasizing because the two walls are conspicuously...these long, adjoining walls differ? Let us list...glass. The stone wall is ...
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Walls that move: demountable walls remain an in-demand product that wall contractors can benefit from installing.
Magazine article from: Walls & Ceilings; 8/1/2005; ; 700+ words
; ...tracks. Demountable steel walls do not move as quickly as moveable wall systems but are usually...Demountable gypsum walls consist of vinyl-covered...the wall angle at the wall/ceiling intersection making the finished walls look better then walls...
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Walls that rock: our favorite reasons to love dry-stacked stone.(TREND)
Magazine article from: Sunset; 11/1/2005; ; 700+ words
; ...contemporary as the wall shown above, designed...gardens, stone walls tell a geologic...you build a rock wall yourself? You can build low walls, but anything taller...will determine the wall's height. For...build several walls to form terraces...
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 "Gazette (Colorado Springs, CO)")
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Walls an unlikely success story for Broncos.
Newspaper article from: Gazette (Colorado Springs, CO); 10/11/2003; 700+ words
; ...not one that would cause panic. Lenny Walls, 17 years old at the time, got into an...him in as the doors closed. But life in Walls' San Francisco neighborhood wasn't what...guys will rob you for anything," said Walls, the Denver Broncos' starting left cornerback...
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WALLS CLOSING IN REBORN AS GIANT, HE TAKES AIM AT 49ERS
Newspaper article from: The Boston Globe; 12/1/1990; ; 700+ words
; ...Johnson's door was always open for Everson Walls last year. Problem was, it was the one with EXIT above it. Walls was as wanted around Dallas by the Cowboys...25th anniversary All-Time team, Everson Walls was finished as far as Jimmy Johnson was...
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Party Wall
Encyclopedia entry from: West's Encyclopedia of American Law
PARTY WALL A partition erected on a property boundary, partly on the...sides of the boundary. Each person owns as much of a party wall as is situated on his or her land. The wall is subject to cross-easements — reciprocal rights...
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wall
Book article from: The Oxford Pocket Dictionary of Current English
...area of land: a garden wall farmland traversed by drystone walls. ∎ ...organ or cavity: the wall of the stomach...xA0; Biol. see cell wall . • v...enclose (an area) within walls, esp. to protect it...
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Wall Drug Store, Inc.
Book article from: International Directory of Company Histories
Wall Drug Store, Inc. 510 Main Street Wall, South Dakota 57709 U.S.A. Telephone: (605) 279-2175...42221 Drugs and Druggist ’ s Sundries Wholesalers Wall Drug Store, Inc. is a unique institution in the annals of American...
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containment walls in environmental management
Book article from: The Oxford Companion to the Earth
...economical and impermeable wall. Containment walls can be constructed using...material within the wall. Containment walls can be constructed in...Continuity of the wall is ensured by using...columns. Containment walls typically reuse most...
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Cell Walls
Book article from: Plant Sciences
...breakdown products from wall polysaccharides. Finally, cell walls glue plant cells together...the secondary cell wall. Secondary cell walls are generally inextensible...mechanical strength of cell walls and makes them highly...degradation. Cell Wall Synthesis The components...
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