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Topic: Acidic

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	* Acidic - (Aquarium): Definition
		A trend towards acidic water may be a sing of overfeeding Actinic: A type of lighting that provides the proper spectra for photosynthesis...
		Acidic water loving species such as Discus and South American Cichlids would be happy with a pH of 5.5 to 7.
		The water turns acidic: During the dry season lot of salts, humic substances and organic material reached, step by step, a higher levels while the water level was going down...
	en.mimi.hu /aquarium/acidic.html (1426 words)

	Acidic Deposition (ÒAcid RainÓ)
		To determine the distribution of acidic deposition and evaluate its biological effects, research and monitoring are being conducted by the federal government with support from states, universities, and private industry.
		Evidence suggests that the ability of the watersheds to neutralize the acidic input is declining, and future acidification of surface waters is a continuing concern.
		Acidic deposition affects terrestrial wildlife species by damaging habitat and by reducing or contaminating food sources through uptake of toxic levels of metals (Schreiber and Newman 1988).
	biology.usgs.gov /s+t/frame/u204.htm (1620 words)

	Research Note: # 96-5 Aquatic Animals in Acidic Waters of the Sierra Nevada
		Chemical conditions of naturally acidic lakes of the Sierra Nevada and presence or absence of several aquatic animals living in those lakes were compared to measurements made in nearby non-acidic lakes.
		By comparing data from naturally acidic Sierran lakes with data from nearby nonacidic lakes, this study assessed the long-term effects of hyperacidity on aquatic biota in the Sierra Nevada.
		Chemical conditions and the presence or absence of fish and amphibian populations were determined for 104 lakes in the Bench Lake/Mt. Pinchot area of Kings Canyon National Park in the Sierra Nevada in the summer of 1992.
	www.arb.ca.gov /research/resnotes/notes/96-5.htm (776 words)

	ScienceMaster - JumpStart - Acid Rain
		Acidic deposition, or acid rain as it is commonly known, occurs when emissions of sulfur dioxide (SO2) and oxides of nitrogen (NOx) react in the atmosphere with water, oxygen, and oxidants to form various acidic compounds.
		If acidic deposition levels were to remain constant over the next 50 years (the time frame used for projection models), the acidification rate of lakes in the Adirondacks that are larger than 10 acres would rise by 50 percent or more.
		Acidic deposition seems to impair the trees' growth in several ways; for example, acidic cloud water at high elevations may increase the susceptibility of the red spruce to winter injury.
	www.sciencemaster.com /jump/earth/acid_rain.php (1915 words)

	Uses and Applications of DBS Alkaline Water: alkalizer, ionizer, antioxidants, free radicals, acidic (Site not responding. Last check: 2007-08-19)
		Acidic ion water is also effective in the treatment and prvention of pimples and skin spots, etc.
		Acidic ion water is effective for overall beauty and the health of your skin.
		Water for wiping the body: wiping the body with a towel that has been steamed in acidic ion water is effective for the overall beauty and health of your skin.
	www.alkalizer.com /applications.html (881 words)

	EPA's Clean Air Market Programs - ACIDIC SURFACE WATERS OF THE CONTERMINOUS U.S. (A_WATER) (Site not responding. Last check: 2007-08-19)
		Adverse aquatic effects from acidic deposition are unlikely in areas of the United States that were not sampled in the NSWS, since surface waters in these areas generally have high acid neutralizing capacity (ANC), with the possible exception of parts of the Coastal Plain, in the Southeast.
		As acidic lakes tend to be smaller than nonacidic lakes, the percentage of acidic lake area in the NSWS was a factor of 2 smaller than the percentage of acidic lakes based on numbers.
		The 1,181 acidic lakes are 4% of the NSWS population of 28,300 lakes.
	www.epa.gov /AIRMARKETS/cmap/summary/sum_a_water_sum.html (1168 words)

	The Environmental Literacy Council - Acid Rain
		The study found that acidic precipitation had affected about 10 percent of eastern lakes and streams and that it had contributed to the decline of red spruce at high altitudes by reducing their tolerance of cold conditions.
		Acidic precipitation is corrosive of metals and alkaline building materials such as marble and limestone.
		Acidic precipitation does not affect human health directly; however, the particulate matter associated with acid precipitation has been shown to have adverse health effects, particularly among those who have respiratory disorders.
	www.enviroliteracy.org /article.php/2.html (1539 words)

	Acidic Extracellular pH Induces Vascular Endothelial Growth Factor (VEGF) in Human Glioblastoma Cells via ERK1/2 MAPK ...
		of the VEGF gene in response to acidic pH.
		B, acidic pH-induced AP-1 DNA binding activity is prevented by mutation in the AP-1 probe.
		Raf on the induction of VEGF by acidic pH.
	www.jbc.org /cgi/content/full/277/13/11368 (5088 words)

	The Green Lane: Acid rain and the facts
		The transformation of SO and NOx to acidic particles and vapours occurs as these pollutants are transported in the atmosphere over distances of hundreds to thousands of kilometers.
		Acidic particles and vapours are deposited via two processes - wet and dry deposition.
		It is slightly acidic because of carbon dioxide which is naturally present in the atmosphere.
	www.ec.gc.ca /acidrain/acidfact.html (2116 words)

	Acidic Body - What can you do?
		The acidic biochemical type is not meant to represent the absolute pH measurement of the blood system, which generally requires a laboratory test performed in hospitals known as blood gases.
		An acidic state reduces blood oxygen carrying capacity and promotes a higher valance state of polymorphism.
		Foods are generally broken down and converted into either acidic or alkaline substrates with digestion.
	www.drlam.com /opinion/acidic_body.cfm (954 words)

	Experiment 5
		To determine whether a salt produces an acidic or basic solution when dissolved in water, it is necessary to determine whether the cation reacts with water to produce an acidic solution, or whether the anion reacts with water to produce a basic solution.
		It may be difficult to think of a metal cation as "acidic" considering the Brønsted definition of an acid as a proton donor, but an acidic metal cation in aqueous solution can be considered to be an acid by the following process.
		If the cation is acidic and the anion is basic, the resulting salt solution may be acidic or basic depending on the relative acid and base strengths of the ions.
	www.tarleton.edu /~alow/1084exp5.htm (1444 words)

	Acidic Deposition, Sequoia and Kings Canyon National Parks
		High-elevation lakes and streams in the parks are potentially sensitive to human-induced acid deposition (acidic rain, snow, and particles).
		While chronic acidification is not a problem at present, there are episodes when the capacity of our lakes and streams to neutralize acids gets reduced -- during snowmelt and during the "dirty" rainstorms of summer and early fall -- and the water becomes acidic for a time.
		If acid deposition increases in the future, a likely scenario given the tremendous population growth in the San Joaquin Valley, these episodes of acidification will become more frequent and can be expected to alter our aquatic communities.
	www.nps.gov /seki/snrm/air/acidic.htm (134 words)

	Water pH
		Acidic skin provides you protection against bacterial infections entering through your skin.
		Acidic water, by definition, has a higher concentration of hydrogen atoms.
		Coffee, fl tea, commercial fruit juices, and carbonated beverages such as pop and sodas are often very acidic and made from poor quality, highly chlorinated and/or fluoridated water.
	thenaturalhealthplace.com /Articles/WaterPH.html (923 words)

	Acidosis - Wikipedia, the free encyclopedia
		Metabolic acidosis results from disturbances in the ability to excrete acid via the kidneys or from excess metabolic production acidic substances.
		resulting from hypoxemia), acidic poisons, iron etc. It can also result from decreased production of bicarbonate.
		Metabolic acidosis can result in stimulation of chemoreceptors and so increase alveolar ventilation, leading to respiratory compensation, otherwise known as hyperventilation.
	en.wikipedia.org /wiki/Acidosis (470 words)

	EPA's Clean Air Market Programs - Effects of Acid Rain: Lakes & Streams (Site not responding. Last check: 2007-08-19)
		Most lakes and streams have a pH between 6 and 8, although some lakes are naturally acidic even without the effects of acid rain.
		In the New Jersey Pine Barrens, for example, over 90 percent of the streams are acidic, which is the highest rate of acidic streams in the nation.
		If acidic deposition levels were to remain constant over the next 50 years (the time frame used for projection models), the acidification rate of lakes in the Adirondack Mountains that are larger than 10 acres would rise by 50 percent or more.
	www.epa.gov /airmarkets/acidrain/effects/surfacewater.html (1378 words)

	OurVeggieGarden > Prepare Garden > Soil and Fertilizer > Soil Test
		The pH is the acidic and alkaline levels.
		If your soil is too acidic, it means that the key nutrients are locked into more complex chemical compounds, and the plants will have difficulty absorbing these nutrients into their root, stem and leaf systems.
		This is known as the solubility of the soil nutrients, and unless the plants can acquire the nutrients in the soil into their growth structures, they become stilted and bear little fruit (vegetables).
	www.ourveggiegarden.com /SoilTest.html (226 words)

	Expression of acidic fibroblast growth factor (aFGF) and fibroblast growth factor receptor 4 (FGFR4) in breast ...
		The location of acidic fibroblast growth factor in the breast is dependent on the activity of proteases present in breast cancer tissue.
		Fibroblast growth factor receptor-4 is a high affinity receptor for both acidic and basic fibroblast growth factor but not for keratinocyte growth factor.
		Acidic and basic FGF and their receptors in normal and malignant breast cells.
	jcp.bmjjournals.com /cgi/content/full/54/1/37 (2717 words)

	Acidic pH induces topoisomerase II-mediated DNA damage -- Xiao et al. 100 (9): 5205 -- Proceedings of the National ...
		Acidic pH plays an important role in cell death during various pathophysiological states, including ischemia and cancer (1-3).
		Previous studies have demonstrated that acidic pH induces up-regulation of p53 in human glioblastoma cells (10).
		Acidic pH is known to cause genomic instability and is causally linked to carcinogenesis (8, 9, 32).
	www.pnas.org /cgi/content/full/100/9/5205 (4461 words)

	Detailed Listing of Acid / Alkaline Forming Foods
		An acidic pH can occur from, an acid forming diet, emotional stress, toxic overload, and/or immune reactions or any process that deprives the cells of oxygen and other nutrients.
		An acidic balance will: decrease the body's ability to absorb minerals and other nutrients, decrease the energy production in the cells, decrease it's ability to repair damaged cells, decrease it's ability to detoxify heavy metals, make tumor cells thrive, and make it more susceptible to fatigue and illness.
		For example, lemons are very acidic, however the end products they produce after digestion and assimilation are very alkaline so, lemons are alkaline forming in the body.
	home.bluegrass.net /~jclark/alkaline_foods.htm (1636 words)

	Atmospheric Science Division - Acid Rain FAQ
		The resulting acidic water droplets can be carried long distances by prevailing winds, returning to Earth as acid rain, snow, or fog.
		On the other side of this scale there are ascending degrees of acidity; milk is slightly acidic, tomato juice is slightly more acidic, vinegar is medium acidic, lemon juice is still more acidic, and battery acid is extremely acidic.
		Airborne acidic pollutants are often transported by large scale weather systems thousands of kilometers from their point of origin before being deposited.
	www.ns.ec.gc.ca /msc/as/acidfaq.html (1365 words)

	New Scientist Breaking News - Acidic clouds of Venus could harbour life
		The acidic clouds of Venus could in fact be hiding life.
		Venus is usually written off as a potential haven for life because of its hellishly hot and acidic surface.
		Although the clouds are very acidic, this region also has the highest concentration of water droplets in the Venusian atmosphere.
	www.newscientist.com /news/news.jsp?id=ns99992843 (557 words)

	Possible Release of an ArgGlyArgProGln Pentapeptide with Innate Immunity Properties from Acidic Proline-Rich Proteins ...
		The acidic proline-rich proteins (PRPs), encoded by the PRH1 and PRH2 loci on chromosome 12p13.2 (4), are major saliva
		Acidic PRPs adsorb to hydroxyapatite surfaces, regulate calcium phosphate and hydroxyapatite crystal equilibrium (15), attach
		Agglutinin and acidic proline-rich protein receptor patterns may modulate bacterial adherence and colonization on tooth surfaces.
	iai.asm.org /cgi/content/full/68/9/5425 (2192 words)

	Frequently Asked Questions about Soil Testing and Fertilizers
		Most soils contain appreciable amounts of acidic components (hydrogen H+ and aluminum Al+++) that can be toxic to plants.
		The basic cations—calcium (Ca++), potassium (K+) and magnesium (Mg++)—are leached from the soil profile and replaced with acidic components (H+ and Al+++) that are toxic to plant roots.
		They may become soluble under very acidic conditions, but such conditions are not conducive to crop production.
	www.agr.state.nc.us /agronomi/stfaqs.htm (3742 words)

	C&EN: Latest News - Oceans turning dangerously acidic
		If current CO emission trends continue, the oceans will become so acidic that corals will cease to thrive, says a report issued on June 30 by the U.K.’s Royal Society.
		When CO dissolves, it produces carbonic acid, which is corrosive to shells of marine organisms and can interfere with the oxygen supply of marine animals.
		It is relatively easy to predict how much the oceans will acidify under present trends, but difficult to predict exactly what acidic oceans will mean to ocean ecology and to Earth’s climate, the report explains.
	pubs.acs.org /cen/news/83/i27/8327oceans.html (188 words)

	Molecular characterization of an acidic region deletion mutant of Cockayne syndrome group B protein -- Sunesen et al. ...
		Molecular characterization of an acidic region deletion mutant of Cockayne syndrome group B protein -- Sunesen et al.
		A site-directed mutation was introduced in the acidic region precisely deleting 39 consecutive amino acids, of which 22 (56%) are acidic residues.
		The previously characterized mutations either substituted acidic residues at positions 381, 382, 384 and 385 with alanines or encoded a deletion of 10 consecutive acidic residues (378–387) of the CSB protein (see also 28).
	nar.oupjournals.org /cgi/content/full/28/16/3151 (5101 words)

	Common Effects of Acidic Activators on Large-Scale Chromatin Structure and Transcription -- Carpenter et al. 25 (3): ...
		consisting mainly of acidic and hydrophobic residues (40).
		An acidic and modular transactivation domain with the potential to adopt an alpha-helical conformation.
		Binding of basal transcription factor TFIIH to the acidic activation domains of VP16 and p53.
	mcb.asm.org /cgi/content/full/25/3/958 (5543 words)

	Alkaline Foods / Acidic Foods
		The chart below categorizes a food as either acidic or alkaline based on the effect consumption of the food has on urine pH.
		For example, if a food tends to increase the acidity of urine after it is ingested, it is classified as an acid forming food.
		For example, orange juice is a highly acidic food due to its high citrus acid content, but after being metabolized it will cause urine to become alkaline.
	www.ctds.info /acidic-foods.html (585 words)

	Uncorked (Site not responding. Last check: 2007-08-19)
		As a general rule, acidic wines pair well with acidic foods (like pasta with red sauce), but they also "cut through" creamy sauces.
		Italian cuisine, with its heavy reliance on tomatoes, onions, and lemons (all acidic foods), matches very well with the (generally) higher-acid wines produced in Italy.
		The finish is reminiscent of maple syrup and oak, with a lingering acidic buzz.
	www.bostonphoenix.com /archive/food/97/11/13/UNCORKED.html (719 words)

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