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Shadow Cliffs Regional Recreation Area
Shadow Cliffs Regional Recreation Area is a regional park on the border of Pleasanton and Livermore, California, that is part of the East Bay Regional Parks (EBRP) system. Its lake, once a gravel pit, has a sandy beach and is used for swimming, fishing, and recreational boating. The park once featured water slides, which were closed in 2011 and have since been taken down, and are planned to be replaced by an Interpretive Center. The park is also a popular picnic ground. History Shadow Cliffs, a former gravel quarry, was donated to EBRP by Kaiser Industries, the former operator of the quarry, and opened as a park in 1971. The U.S. Bureau of Outdoor Recreation provided a grant of $250,000 for development of park facilities. Thus funded, EBRPD developed a park that included an lake, picnic facilities and large parking lot. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alameda County, California
Alameda County ( ) is a county located in the U.S. state of California. As of the 2020 census, the population was 1,682,353, making it the 7th-most populous county in the state and 21st most populous nationally. The county seat is Oakland. Alameda County is in the San Francisco Bay Area, occupying much of the East Bay region. The Spanish word ''alameda'' means either "a grove of poplars...or a tree lined street." The name was originally used to describe the Arroyo de la Alameda. The willow and sycamore trees along the banks of the river reminded the early Spanish explorers of a road lined with trees. Although a strict translation to English might be "Poplar Grove Creek," the name of the principal stream that flows through the county is now simply " Alameda Creek." Alameda County is part of the San Francisco–Oakland–Berkeley, CA Metropolitan Statistical Area, and the San Jose–San Francisco–Oakland, CA Combined Statistical Area. History The county was formed on Mar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxidizing Agent
An oxidizing agent (also known as an oxidant, oxidizer, electron recipient, or electron acceptor) is a substance in a redox chemical reaction that gains or "Electron acceptor, accepts"/"receives" an electron from a (called the , , or ). In other words, an oxidizer is any substance that oxidizes another substance. The oxidation state, which describes the degree of loss of electrons, of the oxidizer decreases while that of the reductant increases; this is expressed by saying that oxidizers "undergo reduction" and "are reduced" while reducers "undergo oxidation" and "are oxidized". Common oxidizing agents are oxygen, hydrogen peroxide and the halogens. In one sense, an oxidizing agent is a chemical species that undergoes a chemical reaction in which it gains one or more electrons. In that sense, it is one component in an Redox, oxidation–reduction (redox) reaction. In the second sense, an oxidizing agent is a chemical species that transfers electronegative atoms, usually oxygen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geography Of Pleasanton, California
Geography (from Greek: , ''geographia''. Combination of Greek words ‘Geo’ (The Earth) and ‘Graphien’ (to describe), literally "earth description") is a field of science devoted to the study of the lands, features, inhabitants, and phenomena of Earth. The first recorded use of the word γεωγραφία was as a title of a book by Greek scholar Eratosthenes (276–194 BC). Geography is an all-encompassing discipline that seeks an understanding of Earth and its human and natural complexities—not merely where objects are, but also how they have changed and come to be. While geography is specific to Earth, many concepts can be applied more broadly to other celestial bodies in the field of planetary science. One such concept, the first law of geography, proposed by Waldo Tobler, is "everything is related to everything else, but near things are more related than distant things." Geography has been called "the world discipline" and "the bridge between the human and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Livermore Valley
The Livermore Valley, historically known as the Valle de San José (Valley of San José), is a valley in Alameda County, California, located in the East Bay region. The city of Livermore is located in the valley. Geography The valley is bounded by the Diablo Range on the north, east, and south; and is linked to the west with the Amador Valley. Watercourses draining the Livermore Valley include Arroyo Mocho, Arroyo Valle, Arroyo Seco, and Arroyo Las Positas. Wine Country The southern side of Livermore is wine country. Wineries in the area include Wente Vineyards and Concannon Vineyards. Laboratories In the east of Livermore is the Lawrence Livermore Laboratory. Element 116 on the periodic table, Livermorium, is named after this laboratory. Sandia Laboratory is also located in eastern Livermore. Due to these laboratories, much of eastern Livermore is off-limits to the general public. History Livermore Valley was named after Robert Livermore, an immigrant American ranch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parks In Alameda County, California
A park is an area of natural, semi-natural or planted space set aside for human enjoyment and recreation or for the protection of wildlife or natural habitats. Urban parks are green spaces set aside for recreation inside towns and cities. National parks and country parks are green spaces used for recreation in the countryside. State parks and provincial parks are administered by sub-national government states and agencies. Parks may consist of grassy areas, rocks, soil and trees, but may also contain buildings and other artifacts such as monuments, fountains or playground structures. Many parks have fields for playing sports such as baseball and football, and paved areas for games such as basketball. Many parks have trails for walking, biking and other activities. Some parks are built adjacent to bodies of water or watercourses and may comprise a beach or boat dock area. Urban parks often have benches for sitting and may contain picnic tables and barbecue grills. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quagga Mussel
The quagga mussel (''Dreissena rostriformis'', also known as ''Dreissena bugensis'' or ''Dreissena rostriformis bugensis'') is a species (or subspecies) of freshwater mussel, an aquatic bivalve mollusk in the family Dreissenidae. It has an average lifespan of 3 to 5 years. The species is indigenous to the Dnieper River drainage of Ukraine, and is named after the quagga, an extinct subspecies of African zebra, possibly because, like the quagga, its stripes fade out towards the ventral side. The invasive quagga mussel is currently of major concern as it spreads in the rivers and lakes of Europe and also in the Great Lakes of North America where it was brought to by overseas shippers that use the Saint Lawrence Seaway. Appearance The quagga mussel shell is generally black, yellow, and/or zig-zagged. However, a large range of shell morphologies is seen, including a distinct morph in Lake Erie that is pale or completely white. The shell has a rounded carina and a convex ventral ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HighBeam Research
HighBeam Research was a paid search engine and full text online archive owned by Gale, a subsidiary of Cengage, for thousands of newspapers, magazines, academic journals, newswires, trade magazines, and encyclopedias in English. It was headquartered in Chicago, Illinois. In late 2018, the archive was shut down. History The company was established in August 2002 after Patrick Spain, who had just sold Hoover's, which he had co-founded, bought eLibrary and Encyclopedia.com from Tucows. The new company was called Alacritude, LLC (a combination of Alacrity and Attitude). ELibrary had a library of 1,200 newspaper, magazine and radio/TV transcript archives that were generally not freely available. Original investors included Prism Opportunity Fund of Chicago and 1 to 1 Ventures of Stamford, Connecticut. Spain stated, "There was a glaring gap between free search like Google and high-end offerings like LexisNexis and Factiva." Later in 2002, it bought Researchville.com. By 2003, it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oakland Tribune
The ''Oakland Tribune'' is a weekly newspaper published in Oakland, California, by the Bay Area News Group (BANG), a subsidiary of MediaNews Group. Founded in 1874, the ''Tribune'' rose to become an influential daily newspaper. With the decline of print media, in March 2016, parent company Digital First Media announced that the ''Tribune'' would fold into a new newspaper entitled the ''East Bay Times'' along with the company's other newspapers in the East Bay starting April 5, 2016. The former nameplates of the consolidated newspapers will continue to be published every Friday as weekly community supplements. Origin The ''Tribune'' was founded February 21, 1874, by George Staniford and Benet A. Dewes. The ''Oakland Daily Tribune'' was first printed at 468 Ninth St. as a 4-page, 3-column newspaper, 6 by 10 inches. Staniford and Dewes gave out copies free of charge. The paper had news stories and 43 advertisements. Staniford, the editor and Dewes, the printer, were credite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Escherichia Coli
''Escherichia coli'' (),Wells, J. C. (2000) Longman Pronunciation Dictionary. Harlow ngland Pearson Education Ltd. also known as ''E. coli'' (), is a Gram-negative, facultative anaerobic, rod-shaped, coliform bacterium of the genus ''Escherichia'' that is commonly found in the lower intestine of warm-blooded organisms. Most ''E. coli'' strains are harmless, but some serotypes ( EPEC, ETEC etc.) can cause serious food poisoning in their hosts, and are occasionally responsible for food contamination incidents that prompt product recalls. Most strains do not cause disease in humans and are part of the normal microbiota of the gut; such strains are harmless or even beneficial to humans (although these strains tend to be less studied than the pathogenic ones). For example, some strains of ''E. coli'' benefit their hosts by producing vitamin K2 or by preventing the colonization of the intestine by pathogenic bacteria. These mutually beneficial relationships between ''E. col ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Livermore, California
Livermore (formerly Livermorès, Livermore Ranch, and Nottingham) is a city in Alameda County, California. With a 2020 population of 87,955, Livermore is the most populous city in the Tri-Valley. It is located on the eastern edge of California's San Francisco Bay Area. The current mayor is Bob Woerner. Livermore was platted and registered on November 4, 1869, as a railroad town by and named for Robert Livermore, his friend and a local rancher who settled in the area in the 1840s. It is the home of the Lawrence Livermore National Laboratory, for which the chemical element livermorium is named (and thus, placing the city's name in the periodic table). It is also the California site of Sandia National Laboratories, which is headquartered in Albuquerque, New Mexico. Its south side is home to local vineyards. The city has redeveloped its downtown district and is considered part of the Tri-Valley area, comprising Amador, Livermore and San Ramon valleys. History Pre-C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polychlorinated Biphenyl
Polychlorinated biphenyls (PCBs) are highly carcinogenic chemical compounds, formerly used in industrial and consumer products, whose production was banned in the United States by the Toxic Substances Control Act in 1979 and internationally by the Stockholm Convention on Persistent Organic Pollutants in 2001. They are organic chlorine compounds with the formula C12 H10−''x'' Cl''x''; they were once widely used in the manufacture of carbonless copy paper, as heat transfer fluids, and as dielectric and coolant fluids for electrical equipment. Because of their longevity, PCBs are still widely in use, even though their manufacture has declined drastically since the 1960s, when a host of problems were identified. With the discovery of PCBs' environmental toxicity, and classification as persistent organic pollutants, their production was banned by United States federal law in 1978, and by the Stockholm Convention on Persistent Organic Pollutants in 2001. The International Agency ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California Office Of Environmental Health Hazard Assessment
The Office of Environmental Health Hazard Assessment, commonly referred to as OEHHA (pronounced oh-EEE-ha), is a specialized department within the cabinet-level California Environmental Protection Agency ( CalEPA) with responsibility for evaluating health risks from environmental chemical contaminants. OEHHA is the scientific adviser within CalEPA and provides the health effects assessments that assist regulatory decision makers within CalEPA, the California Department of Public Health, and other agencies and non-governmental organizations (see below). This includes assessing health and environmental risks from: * Carcinogens * Reproductive toxins * Air pollutants * Pesticides * Chemical contaminants in food and water * Chemical exposures in the workplace * Climate change in California In the news Attempted closure In May 2009, Governor Arnold Schwarzenegger proposed to "eliminate and transfer the functions" of OEHHA (and other agencies) as part his May Revise for the 2009– ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
