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- Ionosphere (19365 bytes)
8: ...alance between these two processes determines the degree of ionization present at any given time.
10: ...e also mechanisms that disturb the ionosphere and decrease the ionization. There are disturbances suc...
14: ...imum solar activity. With an active sun electron density values are a factor of 10 higher.]]
19: ...ller absorption as the frequency gets higher. The absorption is small at night and greatest about midday. The ...
22: ...ow far it can reflect radio waves. On the night side of the Earth, the solar wind drags the ionosphere... - Architectural history (13369 bytes)
1: ... [[discipline]]. Consequently there have been a wide range of perspectives in the study of architectur...
3: ...torical evolution of principles and styles in the design of [[buildings]] and cities.
5: ...y|phenomenologically]]. Although both approaches identify architecture as a sort of language, they dif...
7: ...tion]], late [[capitalism]] and [[neo-liberal]] [[democracy]]. An increasing awareness of [[Postcoloni...
9: ...hat Architectural history reflects the historical development of its time. - Tobacco smoking (36030 bytes)
2: ...ly [[lung cancer]], [[emphysema]], and other disorders.
4: ...alth hazards of smoking, the practice has rapidly declined in recent years in the [[United States]], [...
8: ...and increases with quantity and speed of nicotine absorption.
10: ...s balanced by its immediate rewards, while others deny the risks altogether.
13: ...co was used as an all-purpose medicine, and was widely believed to have magical powers, It was also bu... - Thomas Aquinas (12692 bytes)
3: ...s University]] in [[Fredericton, New Brunswick|Fredericton]], [[New Brunswick]], the [[University of S...
7: ...stery]] at [[Monte Cassino]], and the family intended Thomas to follow his uncle into that position; t...
9: ...an order]], which along with the [[Franciscan]] order represented a revolutionary challenge to the wel...
11: ...most important influence in his development; it made him a comprehensive scholar and won him permanent...
14: ...fore the latter part of 1261), he took up his residence in Rome. In 1269-71 he was again active in Par... - Sikhism (31029 bytes)
2: ...i]], [[monism]], [[Vedic]] metaphysics, [[guru]] ideal, and [[bhajan]]s) as well as [[Sufi|Sufi Islam]...
4: The founder of Sikhism, [[Guru Nanak]], was born in [[1469]]...
6: ...ony in AD [[1699]] ; and thus gave a distinctive identity to the Sikhs. The five baptised Sikhs were n...
8: ...es in the world that has been compiled by the founders of a faith during their own life time. The Sikh...
10: Guru Nanak's doctrinal position is clear, despite the appearance that it is a blend of insight... - Leaf (20580 bytes)
4: ...le. Note areas where chlorophyll (green) has been destroyed now appear yellow.]]
8: ...species to species is presented in detail below under <u>Leaf types, arrangements, and forms</u>.
10: A leaf is considered to be a plant organ, typically consisting of t...
11: # An '''epidermis''' that covers the upper and lower surfaces
15: === Epidermis === - Jumping spider (3866 bytes)
1: ...of jumping from place to place, secured by a [[spider silk|silk]] tether.
4: ...]). Tropical forests harbor the most species, but deserts, temperate forests, scrub lands, and even th...
5: ...world of [[mountain climbing]]. When a jumping spider is moving from place to place, and especially ju...
7: Several species of jumping spiders appear to mimic ants, beetles, or pseudoscorpio...
9: ...rom fingertip to nose. Unlike almost all other spiders, they can quite easily climb on glass. They als... - Global warming (53726 bytes)
3: ... by anthropogenic (human-generated) [[carbon dioxide]] (CO<sub>2</sub>). The alternative view, that t...
5: ... also uncertainty about the accuracy of climate models. [[Climate commitment studies]] predict that ev...
7: ...limate change]]. Such changes can trigger various detrimental effects by causing [[flood]]s, [[drought...
16: ...supported by an international group of science academies from various countries including [[Brazil]], ...
18: ...lso pointed out that "authors evaluating impacts, developing methods, or studying paleoclimatic change... - Fungus (12992 bytes)
15: ...CAS_mushrooms001A.jpg|thumb|left|200px|Image provided by [http://classroomclipart.com Classroom ClipAr...
18: ...corrhiza]]e''''', which assist their [[root]]s in absorption of [[nutrients]] and [[water]].
21: ... even very knowledgeable persons occasionally misidentify wild mushrooms, with sometimes fatal consequ...
22: ...AS_mushrooms003A.jpg|thumb|right|200px|Image provided by [http://classroomclipart.com Classroom ClipAr...
24: Fungi can be divided into two basic morphological forms, yeasts and h... - River (12397 bytes)
1: ...b|A Feluca sailing down the nile river.Image provided by [http://classroomclipart.com Classroom Clip A...
4: ...ly widens at its end and forms what is known as a delta or estuary.
7: ...of [[sediment]] develop conspicuous [[river delta|delta]]s at their mouths. Rivers whose mouths are in...
9: Where a river descends quickly over sloped topography, [[rapid]]s ...
25: ...dents (and/or negligence) account for much of the destruction of riparian [[biome|biomes]]. Heated wat... - Iris (anatomy) (11258 bytes)
3: ...he '''iris''' (plural '''''irises''''' or '''''irides''''') is the most visible part of the [[eye]] of...
10: ...of an abnormally vascularised iris. Despite the wide range of colours, there is only one pigment that ...
12: ===Genetic and physical factors determining iris colour===
13: ...arent and the white [[sclera]] lies entirely outside the area of interest. It is a common misconcepti...
15: ...rown or black are due to selective reflection and absorption from the other stromal components. Sometimes [[li... - Virus (17572 bytes)
1: ...her [[DNA]] or [[RNA]] (depicted as blue), surrounded by a protein coat, or [[capsid]], with or withou...
3: ...age its [[genetic material]], but for proteins needed by the virus during [[lysogenic cycle|lysogenic]...
7: ...]] and other noxious things. Today it is used to describe the biological viruses discussed above and ...
12: ...ites, and have no form which can reproduce independently of their host. Like most parasites, they have...
14: ...ned, it can be strongly argued that viruses are indeed alive. Some small viruses are more efficient t... - Beryllium (15119 bytes)
1: {| border="1" cellpadding="2" cellspacing="0" align="right...
4: {| align="center" border="0"
14: ! colspan="2" bgcolor="#FFDEAD" | General
25: | [[Density]], [[Mohs hardness scale|Hardness]]
31: ! colspan="2" bgcolor="#FFDEAD" | Atomic properties - Cerium (12377 bytes)
2: {| border="1" cellpadding="2" cellspacing="0" align="right...
4: {| align="center" border="0"
18: | [[Lanthanide]]s
23: | [[Density]], [[Mohs hardness scale|Hardness]]
40: | [[van der Waals radius]] - Copper (13595 bytes)
1: ... of data; skip past it to edit the text. -->{| border="1" cellpadding="2" cellspacing="0" align="right...
4: {| align="center" border="0"
25: | [[Density]], [[Mohs hardness scale|Hardness]]
42: | [[van der Waals radius]]
51: | [[Oxidation state]]s ([[Oxide]]) - Dysprosium (8843 bytes)
2: {| border="1" cellpadding="2" cellspacing="0" align="right...
4: {| align="center" border="0"
19: | [[Lanthanide]]s
24: | [[Density]], [[Mohs hardness scale|Hardness]]
41: | [[van der Waals radius]] - Erbium (9509 bytes)
2: {| border="1" cellpadding="2" cellspacing="0" align="right...
4: {| align="center" border="0"
19: | [[Lanthanide]]s
24: | [[Density]], [[Mohs hardness scale|Hardness]]
41: | [[van der Waals radius]] - Hafnium (9162 bytes)
2: {| border="1" cellpadding="2" cellspacing="0" align="right...
4: {| align="center" border="0"
23: | [[Density]], [[Mohs hardness scale|Hardness]]
40: | [[van der Waals radius]]
49: | [[Oxidation state]] ([[Oxide]]) - Holmium (7766 bytes)
2: {| border="1" cellpadding="2" cellspacing="0" align="right...
4: {| align="center" border="0"
18: | [[Lanthanide]]s
23: | [[Density]], [[Mohs hardness scale|Hardness]]
40: | [[van der Waals radius]] - Neodymium (12345 bytes)
2: <table border="1" cellpadding="2" cellspacing="0" align="right...
4: <table align="center" border="0">
16: ...] </td><td>[[Lanthanide]]s</td></tr>
20: <td>[[Density]], [[Mohs hardness scale|Hardness]] </td>...
32: <td>[[van der Waals radius]] </td><td>...
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