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Ketura, Israel
Ketura () is a kibbutz in southern Israel. Located north of Eilat in the Aravah Valley, it falls under the jurisdiction of Hevel Eilot Regional Council. In it had a population of . Name The name Ketura was taken from a nearby hill and wadi, and is also the name of Keturah, the second wife of Abraham (). History Ketura was founded in November 1973 by a group of young American Jews, American Jewish immigrants, most of them members of the Zionist youth movement Young Judaea. Difficulties in the early years frustrated many of the inhabitants of the kibbutz, which caused many of the founders to leave. At the same time, more Young Judaeans joined the community, along with a variety of other immigrants as well as Israel Boy and Girl Scouts Federation graduates. Ketura is in the Southern Arava - Hevel Eilot Regional Council. Today Ketura has about 165 members and several young families who are candidates to become members. During the year there are about 500 people living on Ketura, me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 contiguous states border Canada to the north and Mexico to the south, with the semi-exclave of Alaska in the northwest and the archipelago of Hawaii in the Pacific Ocean. The United States asserts sovereignty over five Territories of the United States, major island territories and United States Minor Outlying Islands, various uninhabited islands in Oceania and the Caribbean. It is a megadiverse country, with the world's List of countries and dependencies by area, third-largest land area and List of countries and dependencies by population, third-largest population, exceeding 340 million. Its three Metropolitan statistical areas by population, largest metropolitan areas are New York metropolitan area, New York, Greater Los Angeles, Los Angel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zionist Youth Movement
A Zionist youth movement () is an organization formed for Jewish children and adolescents for educational, social, and ideology, ideological development, including a belief in Zionism, Jewish nationalism as represented in the State of Israel. Youth leaders in modern youth movements use informal education approaches to educate toward the movement's ideological goals. History Most Youth movements and youth organizations in Israel, Zionist youth movements were established in Eastern Europe in the early twentieth century, desiring the national revival of the Jewish people in their own homeland, and soon formed an active and integral part of the Zionist movement. All emphasised aliyah (emigration to the Land of Israel) and community, with many also focussing on a return to nature. Blau-Weiss is considered by some to have been the first Zionist youth movement. Established in Germany in 1912, its youth leaders were inspired by the culture of outings and hikes prevalent in the German Yout ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fungi
A fungus (: fungi , , , or ; or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and mold (fungus), molds, as well as the more familiar mushrooms. These organisms are classified as one of the kingdom (biology)#Six kingdoms (1998), traditional eukaryotic kingdoms, along with Animalia, Plantae, and either Protista or Protozoa and Chromista. A characteristic that places fungi in a different kingdom from plants, bacteria, and some protists is chitin in their cell walls. Fungi, like animals, are heterotrophs; they acquire their food by absorbing dissolved molecules, typically by secreting digestive enzymes into their environment. Fungi do not photosynthesize. Growth is their means of motility, mobility, except for spores (a few of which are flagellated), which may travel through the air or water. Fungi are the principal decomposers in ecological systems. These and other differences place fungi in a single group of related o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bacteria
Bacteria (; : bacterium) are ubiquitous, mostly free-living organisms often consisting of one Cell (biology), biological cell. They constitute a large domain (biology), domain of Prokaryote, prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among the first life forms to appear on Earth, and are present in most of its habitats. Bacteria inhabit the air, soil, water, Hot spring, acidic hot springs, radioactive waste, and the deep biosphere of Earth's crust. Bacteria play a vital role in many stages of the nutrient cycle by recycling nutrients and the nitrogen fixation, fixation of nitrogen from the Earth's atmosphere, atmosphere. The nutrient cycle includes the decomposition of cadaver, dead bodies; bacteria are responsible for the putrefaction stage in this process. In the biological communities surrounding hydrothermal vents and cold seeps, extremophile bacteria provide the nutrients needed to sustain life by converting dissolved compounds, suc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unicellular Organism
A unicellular organism, also known as a single-celled organism, is an organism that consists of a single cell, unlike a multicellular organism that consists of multiple cells. Organisms fall into two general categories: prokaryotic organisms and eukaryotic organisms. Most prokaryotes are unicellular and are classified into bacteria and archaea. Many eukaryotes are multicellular, but some are unicellular such as protozoa, unicellular algae, and unicellular fungi. Unicellular organisms are thought to be the oldest form of life, with early organisms emerging 3.5–3.8 billion years ago. Although some prokaryotes live in colonies, they are not specialised cells with differing functions. These organisms live together, and each cell must carry out all life processes to survive. In contrast, even the simplest multicellular organisms have cells that depend on each other to survive. Most multicellular organisms have a unicellular life-cycle stage. Gametes, for example, are reprodu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haematococcus Pluvialis
''Haematococcus lacustris'' is a freshwater species of green algae Chlorophyta from the family Haematococcaceae. This species is well known for its high content of the strong antioxidant astaxanthin, which is important in aquaculture, and cosmetics. The high amount of astaxanthin is present in the resting cells, which are produced and rapidly accumulated when the environmental conditions become unfavorable for normal cell growth. Examples of such conditions include bright light, high salinity, and low availability of nutrients. ''Haematococcus lacustris'' is usually found in temperate regions around the world. Their resting cysts are often responsible for the blood-red colour seen in the bottom of dried out rock pools and bird baths. This colour is caused by astaxanthin which is believed to protect the resting cysts from the detrimental effect of UV-radiation, when exposed to direct sunlight. Description In its vegetative state, ''Haematococcus lacustris'' consists of motile, sph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microalgae
Microalgae or microphytes are microscopic scale, microscopic algae invisible to the naked eye. They are phytoplankton typically found in freshwater and marine life, marine systems, living in both the water column and sediment. They are unicellular organism, unicellular species which exist individually, or in chains or groups. Depending on the species, their sizes can range from a few micrometers (μm) to a few hundred micrometers. Unlike higher plants, microalgae do not have roots, stems, or leaves. They are specially adapted to an environment dominated by viscous forces. Microalgae, capable of performing photosynthesis, are important for life on earth; they produce approximately half of the atmospheric oxygen and use the greenhouse gas carbon dioxide to grow photoautotrophically. "Marine photosynthesis is dominated by microalgae, which together with cyanobacteria, are collectively called phytoplankton." Microalgae, together with bacteria, form the base of the food web and provid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ketura, Israel
Ketura () is a kibbutz in southern Israel. Located north of Eilat in the Aravah Valley, it falls under the jurisdiction of Hevel Eilot Regional Council. In it had a population of . Name The name Ketura was taken from a nearby hill and wadi, and is also the name of Keturah, the second wife of Abraham (). History Ketura was founded in November 1973 by a group of young American Jews, American Jewish immigrants, most of them members of the Zionist youth movement Young Judaea. Difficulties in the early years frustrated many of the inhabitants of the kibbutz, which caused many of the founders to leave. At the same time, more Young Judaeans joined the community, along with a variety of other immigrants as well as Israel Boy and Girl Scouts Federation graduates. Ketura is in the Southern Arava - Hevel Eilot Regional Council. Today Ketura has about 165 members and several young families who are candidates to become members. During the year there are about 500 people living on Ketura, me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solar Power
Solar power, also known as solar electricity, is the conversion of energy from sunlight into electricity, either directly using photovoltaics (PV) or indirectly using concentrated solar power. Solar panels use the photovoltaic effect to convert light into an electric current. Concentrated solar power systems use lenses or mirrors and solar tracking systems to focus a large area of sunlight to a hot spot, often to drive a steam turbine. Photovoltaics (PV) were initially solely used as a source of electricity for small and medium-sized applications, from the calculator powered by a single solar cell to remote homes powered by an off-grid rooftop PV system. Commercial concentrated solar power plants were first developed in the 1980s. Since then, as the cost of solar panels has fallen, grid-connected solar PV systems' capacity and production has doubled about every three years. Three-quarters of new generation capacity is solar, with both millions of rooftop installatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knesset
The Knesset ( , ) is the Unicameralism, unicameral legislature of Israel. The Knesset passes all laws, elects the President of Israel, president and Prime Minister of Israel, prime minister, approves the Cabinet of Israel, cabinet, and supervises the work of the government, among other things. In addition, the Knesset elects the State Comptroller of Israel, state comptroller. It also has the power to waive the immunity of its members, remove the president and the state comptroller from office, dissolve the government in a constructive vote of no confidence, and to dissolve itself and call new elections. The prime minister may also Dissolution of parliament, dissolve the Knesset. However, until an election is completed, the Knesset maintains authority in its current composition.The Knesset Jewish Virtual Library. Ret ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
