The Ancient Greek language includes the forms of Greek used in Ancient Greece and the ancient world from around the 9th century BCE to the 6th century CE. It is roughly divided into the Archaic period, Classical period, Hellenistic period, it is succeeded by medieval Greek. Koine is regarded as a separate historical stage of its own, although in its earliest form it resembled Attic Greek and in its latest form it approaches Medieval Greek. Prior to the Koine period, Greek of the classic and earlier periods included several regional dialects. Ancient Greek was the language of Homer and of fifth-century Athenian historians and philosophers, it has contributed many words to English vocabulary and has been a standard subject of study in educational institutions of the Western world since the Renaissance. This article contains information about the Epic and Classical periods of the language. Ancient Greek was a pluricentric language, divided into many dialects; the main dialect groups are Attic and Ionic, Aeolic and Doric, many of them with several subdivisions.
Some dialects are found in standardized literary forms used in literature, while others are attested only in inscriptions. There are several historical forms. Homeric Greek is a literary form of Archaic Greek used in the epic poems, the "Iliad" and "Odyssey", in poems by other authors. Homeric Greek had significant differences in grammar and pronunciation from Classical Attic and other Classical-era dialects; the origins, early form and development of the Hellenic language family are not well understood because of a lack of contemporaneous evidence. Several theories exist about what Hellenic dialect groups may have existed between the divergence of early Greek-like speech from the common Proto-Indo-European language and the Classical period, they differ in some of the detail. The only attested dialect from this period is Mycenaean Greek, but its relationship to the historical dialects and the historical circumstances of the times imply that the overall groups existed in some form. Scholars assume that major Ancient Greek period dialect groups developed not than 1120 BCE, at the time of the Dorian invasion—and that their first appearances as precise alphabetic writing began in the 8th century BCE.
The invasion would not be "Dorian" unless the invaders had some cultural relationship to the historical Dorians. The invasion is known to have displaced population to the Attic-Ionic regions, who regarded themselves as descendants of the population displaced by or contending with the Dorians; the Greeks of this period believed there were three major divisions of all Greek people—Dorians and Ionians, each with their own defining and distinctive dialects. Allowing for their oversight of Arcadian, an obscure mountain dialect, Cypriot, far from the center of Greek scholarship, this division of people and language is quite similar to the results of modern archaeological-linguistic investigation. One standard formulation for the dialects is: West vs. non-west Greek is the strongest marked and earliest division, with non-west in subsets of Ionic-Attic and Aeolic vs. Arcadocypriot, or Aeolic and Arcado-Cypriot vs. Ionic-Attic. Non-west is called East Greek. Arcadocypriot descended more from the Mycenaean Greek of the Bronze Age.
Boeotian had come under a strong Northwest Greek influence, can in some respects be considered a transitional dialect. Thessalian had come under Northwest Greek influence, though to a lesser degree. Pamphylian Greek, spoken in a small area on the southwestern coast of Anatolia and little preserved in inscriptions, may be either a fifth major dialect group, or it is Mycenaean Greek overlaid by Doric, with a non-Greek native influence. Most of the dialect sub-groups listed above had further subdivisions equivalent to a city-state and its surrounding territory, or to an island. Doric notably had several intermediate divisions as well, into Island Doric, Southern Peloponnesus Doric, Northern Peloponnesus Doric; the Lesbian dialect was Aeolic Greek. All the groups were represented by colonies beyond Greece proper as well, these colonies developed local characteristics under the influence of settlers or neighbors speaking different Greek dialects; the dialects outside the Ionic group are known from inscriptions, notable exceptions being: fragments of the works of the poet Sappho from the island of Lesbos, in Aeolian, the poems of the Boeotian poet Pindar and other lyric poets in Doric.
After the conquests of Alexander the Great in the late 4th century BCE, a new international dialect known as Koine or Common Greek developed based on Attic Greek, but with influence from other dialects. This dialect replaced most of the older dialects, although Doric dialect has survived in the Tsakonian language, spoken in the region of modern Sparta. Doric has passed down its aorist terminations into most verbs of Demotic Greek. By about the 6th century CE, the Koine had metamorphosized into Medieval Greek. Ancient Macedonian was an Indo-European language at least related to Greek, but its exact relationship is unclear because of insufficient data: a dialect of Greek; the Macedonian dialect (or l
Fitzgerald known as Fort Fitzgerald and Smith's Landing, is an unincorporated community in northern Alberta within the Regional Municipality of Wood Buffalo, located 15.4 kilometres south of the Northwest Territories border, 23 kilometres southeast of Fort Smith. Prior to the extension of railway service to Hay River, Northwest Territories, on Great Slave Lake, all cargo being shipped to or from the north had to be portaged from Fitzgerald to Fort Smith, to avoid four impassable rapids; the community was known as Smith's Landing until 1915 when it was renamed Fort Fitzgerald after the late Francis Joseph Fitzgerald. Most of the community's services are provided from Fort Smith, including fire, law enforcement, health care, social services, telecommunications. Law enforcement is part of the Royal Canadian Mounted Police'G division' in the Northwest Territories. Since telecommunication services, including cellular and internet, are from Fort Smith, Northwest Territories, the area code is 867, although Fitzgerald is located in what would be area code 780 in Alberta.
An all-weather road, named Hay Camp Road, links Fort Hay Camp through Fitzgerald. Fitzgerald had a population of 8 people in the 2018 Regional Municipality of Wood Buffalo census; the population of the Thebathi 196 Indian Reserve in the federal 2016 census was 20, a 33.3% decrease from the 2011 census which had a population of 30. Fitzgerald has a subarctic climate. Summers are short and warm, winters long and cold. List of communities in Alberta List of unincorporated communities in Alberta Regional Municipality of Wood Buffalo Fort Fitzgerald
Anatomical terms of location
Standard anatomical terms of location deal unambiguously with the anatomy of animals, including humans. All vertebrates have the same basic body plan – they are bilaterally symmetrical in early embryonic stages and bilaterally symmetrical in adulthood; that is, they have mirror-image left and right halves if divided down the middle. For these reasons, the basic directional terms can be considered to be those used in vertebrates. By extension, the same terms are used for many other organisms as well. While these terms are standardized within specific fields of biology, there are unavoidable, sometimes dramatic, differences between some disciplines. For example, differences in terminology remain a problem that, to some extent, still separates the terminology of human anatomy from that used in the study of various other zoological categories. Standardized anatomical and zoological terms of location have been developed based on Latin and Greek words, to enable all biological and medical scientists to delineate and communicate information about animal bodies and their component organs though the meaning of some of the terms is context-sensitive.
The vertebrates and Craniata share a substantial heritage and common structure, so many of the same terms are used for location. To avoid ambiguities this terminology is based on the anatomy of each animal in a standard way. For humans, one type of vertebrate, anatomical terms may differ from other forms of vertebrates. For one reason, this is because humans have a different neuraxis and, unlike animals that rest on four limbs, humans are considered when describing anatomy as being in the standard anatomical position, thus what is on "top" of a human is the head, whereas the "top" of a dog may be its back, the "top" of a flounder could refer to either its left or its right side. For invertebrates, standard application of locational terminology becomes difficult or debatable at best when the differences in morphology are so radical that common concepts are not homologous and do not refer to common concepts. For example, many species are not bilaterally symmetrical. In these species, terminology depends on their type of symmetry.
Because animals can change orientation with respect to their environment, because appendages like limbs and tentacles can change position with respect to the main body, positional descriptive terms need to refer to the animal as in its standard anatomical position. All descriptions are with respect to the organism in its standard anatomical position when the organism in question has appendages in another position; this helps avoid confusion in terminology. In humans, this refers to the body in a standing position with arms at the side and palms facing forward. While the universal vertebrate terminology used in veterinary medicine would work in human medicine, the human terms are thought to be too well established to be worth changing. Many anatomical terms can be combined, either to indicate a position in two axes or to indicate the direction of a movement relative to the body. For example, "anterolateral" indicates a position, both anterior and lateral to the body axis. In radiology, an X-ray image may be said to be "anteroposterior", indicating that the beam of X-rays pass from their source to patient's anterior body wall through the body to exit through posterior body wall.
There is no definite limit to the contexts in which terms may be modified to qualify each other in such combinations. The modifier term is truncated and an "o" or an "i" is added in prefixing it to the qualified term. For example, a view of an animal from an aspect at once dorsal and lateral might be called a "dorsolateral" view. Again, in describing the morphology of an organ or habitus of an animal such as many of the Platyhelminthes, one might speak of it as "dorsiventrally" flattened as opposed to bilaterally flattened animals such as ocean sunfish. Where desirable three or more terms may be agglutinated or concatenated, as in "anteriodorsolateral"; such terms sometimes used to be hyphenated. There is however little basis for any strict rule to interfere with choice of convenience in such usage. Three basic reference planes are used to describe location; the sagittal plane is a plane parallel to the sagittal suture. All other sagittal planes are parallel to it, it is known as a "longitudinal plane".
The plane is perpendicular to the ground. The median plane or midsagittal plane is in the midline of the body, divides the body into left and right portions; this passes through the head, spinal cord, and, in many animals, the tail. The term "median plane" can refer to the midsagittal plane of other structures, such as a digit; the frontal plane or coronal plane divides the body into ventral portions. For post-embryonic humans a coronal plane is vertical and a transverse plane is horizontal, but for embryos and quadrupeds a coronal plane is horizontal and a transverse plane is vertical. A longitudinal plane is any plane perpendicular to the transverse plane; the coronal plane and the sagittal plane are examples of longitudinal planes. A transverse plane known as a cross-section, divides the body into cranial and caudal portions. In human anatomy: A transverse plane is an X-Z plane, parallel to the ground, which s
Panama the Republic of Panama, is a country in Central America, bordered by Costa Rica to the west, Colombia to the southeast, the Caribbean Sea to the north, the Pacific Ocean to the south. The capital and largest city is Panama City, whose metropolitan area is home to nearly half the country's 4 million people. Panama was inhabited by indigenous tribes before Spanish colonists arrived in the 16th century, it broke away from Spain in 1821 and joined the Republic of Gran Colombia, a union of Nueva Granada and Venezuela. After Gran Colombia dissolved in 1831, Panama and Nueva Granada became the Republic of Colombia. With the backing of the United States, Panama seceded from Colombia in 1903, allowing the construction of the Panama Canal to be completed by the US Army Corps of Engineers between 1904 and 1914; the 1977 Torrijos–Carter Treaties led to the transfer of the Canal from the United States to Panama on December 31, 1999. Revenue from canal tolls continues to represent a significant portion of Panama's GDP, although commerce and tourism are major and growing sectors.
It is regarded as a high-income country. In 2015 Panama ranked 60th in the world in terms of the Human Development Index. In 2018, Panama was ranked seventh-most competitive economy in Latin America, according to the World Economic Forum's Global Competitiveness Index. Covering around 40 percent of its land area, Panama's jungles are home to an abundance of tropical plants and animals – some of them found nowhere else on the planet. Panama is a founding member of the United Nations and other international organizations such as OAS, LAIA, G77, WHO and NAM; the definite origin of the name Panama is unknown. There are several theories. One postulates that the country was named after a found species of tree. Another that the first settlers arrived in Panama in August, when butterflies abound, that the name means "many butterflies" in one or several of indigenous Amerindian languages that were spoken in the territory prior to Spanish colonization. Most scientifically corroborated theory, that by Panamanian linguists, states that the word is a hispanicization of Kuna language word "bannaba" which means "distant" or "far away".
A relayed legend in Panama is that there was a fishing village that bore the name "Panamá", which purportedly meant "an abundance of fish", when the Spanish colonizers first landed in the area. The exact location of the village is unspecified; the legend is corroborated by Captain Antonio Tello de Guzmán's diary entries, who reports landing at an unnamed village while exploring the Pacific coast of Panama in 1515. In 1517, Don Gaspar de Espinosa, a Spanish lieutenant, decided to settle a post in the same location Guzmán described. In 1519, Pedrarias Dávila decided to establish the Spanish Empire's Pacific port at the site; the new settlement replaced Santa María La Antigua del Darién, which had lost its function within the Crown's global plan after the Spanish exploitation of the riches in the Pacific began. The official definition and origin of the name as promoted by Panama's Ministry of Education is the "abundance of fish and butterflies"; this is the usual description given in social studies textbooks.
At the time of the arrival of the Spanish in the 16th century, the known inhabitants of Panama included the Cuevas and the Coclé tribes. These people have nearly disappeared; the Isthmus of Panama was formed about three million years ago when the land bridge between North and South America became complete, plants and animals crossed it in both directions. The existence of the isthmus affected the dispersal of people and technology throughout the American continent from the appearance of the first hunters and collectors to the era of villages and cities; the earliest discovered artifacts of indigenous peoples in Panama include Paleo-Indian projectile points. Central Panama was home to some of the first pottery-making in the Americas, for example the cultures at Monagrillo, which date back to 2500–1700 BC; these evolved into significant populations best known through their spectacular burials at the Monagrillo archaeological site, their beautiful Gran Coclé style polychrome pottery. The monumental monolithic sculptures at the Barriles site are important traces of these ancient isthmian cultures.
Before Europeans arrived Panama was settled by Chibchan and Cueva peoples. The largest group were the Cueva; the size of the indigenous population of the isthmus at the time of European colonization is uncertain. Estimates range as high as two million people, but more recent studies place that number closer to 200,000. Archaeological finds and testimonials by early European explorers describe diverse native isthmian groups exhibiting cultural variety and suggesting people developed by regular regional routes of commerce; when Panama was colonized, the indigenous peoples fled into nearby islands. Scholars believe that infectious disease was the primary cause of the population decline of American natives; the indigenous peoples had no acquired immunity to diseases, chronic in Eurasian populations for centuries. Rodrigo de Bastidas sailed westward from Venezuela in 1501 in search of gold, became the first European to explore the isthmus of Panama. A year Christopher Columbus visited the isthmus, established a short-lived settlement in the Darien.
Vasco Núñez de Balboa's tortuous
The Pelecaniformes are an order of medium-sized and large waterbirds found worldwide. As traditionally—but erroneously—defined, they encompass all birds that have feet with all four toes webbed. Hence, they were also known by such names as totipalmates or steganopodes. Most have a bare throat patch, the nostrils have evolved into dysfunctional slits, forcing them to breathe through their mouths, they feed on squid, or similar marine life. Nesting is colonial; the young are altricial, hatching from the egg naked in most. They lack a brood patch; the Fregatidae, Phalacrocoracidae and Phaethontidae were traditionally placed in the Pelecaniformes, but molecular and morphological studies indicate they are not such close relatives. They have been placed in their own orders and Phaethontiformes, respectively. Classically, bird relationships were based on morphological characteristics; the Pelecaniformes were traditionally—but erroneously—defined as birds that have feet with all four toes webbed, as opposed to all other birds with webbed feet where only three of four were webbed.
Hence, they were also known by such names as totipalmates or steganopodes. The group included frigatebirds, cormorants and tropicbirds. Sibley and Ahlquist's landmark DNA-DNA hybridisation studies led to them placing the families traditionally contained within the Pelecaniformes together with the grebes, cormorants and spoonbills, New World vultures, penguins, albatrosses and loons together as a subgroup within a expanded order Ciconiiformes, a radical move which by now has been all but rejected: their "Ciconiiformes" assembled all early advanced land- and seabirds for which their research technique delivered insufficient phylogenetic resolution. Morphological study has suggested pelicans are sister to a gannet-cormorant clade, yet genetic analysis groups them with the hamerkop and shoebill, though the exact relationship between the three is unclear. Mounting evidence pointed to the shoebill as a close relative of pelicans; this included microscopic analysis of eggshell structure by Konstantin Mikhailov in 1995, who found that the shells of pelecaniform eggs were covered in a thick microglobular material.
Reviewing genetic evidence to date and colleagues surmised that pelicans were sister to the shoebill with the hamerkop as the next earlier offshoot. Ericson and colleagues sampled five nuclear genes in a 2006 study spanning the breadth of bird lineages, came up with pelicans and hamerkop in a clade. Hackett and colleagues sampled 32 kilobases of nuclear DNA and recovered shoebill and hamerkop as sister taxa, pelicans sister to them, herons and ibises as sister groups to each other with this heron and ibis group a sister to the pelican/shoebill/hamerkop clade; the current International Ornithological Committee classification has pelicans grouped with the shoebill, hamerkop and spoonbills, herons and bitterns. Recent research suggests that the similarities between the Pelecaniformes as traditionally defined are the result of convergent evolution rather than common descent, that the group is paraphyletic. All families in the traditional or revised Pelecaniformes except the Phalacrocoracidae have only a few handfuls of species at most, but many were more numerous in the Early Neogene.
Fossil genera and species are discussed in genus accounts. This is "Sula" ronzoni from Early Oligocene rocks at Ronzon, believed to be a sea-duck and is an ancestral Pelecaniform; the pelecaniform lineages appear to have originated around the end of the Cretaceous. Monophyletic or not, they appear to belong to a close-knit group of "higher waterbirds" which includes groups such as penguins and Procellariiformes. Quite a lot of fossil bones from around the Cretaceous–Paleogene boundary cannot be placed with any of these orders and rather combine traits of several of them; this is, of course, only to be expected, if the theory that most if not all of these "higher waterbird" lineages originated around that time is correct. Of those basal taxa, the following show some similarities to the traditional Pelecaniformes: Lonchodytes Torotix Tytthostonyx Cladornis "Liptornis"—a nomen dubiumThe proposed Elopterygidae—supposedly a family of Cretaceous Pelecaniformes—are neither monophyletic nor does Elopteryx appear to be a modern bird.
Pelecaniformes portal Bourdon, Estelle. J. Vertebr. Paleontol. 25: 157–170. DOI: 10.1671/0272-46340252.0. CO. Journal für Ornithologie 144: 157–175. HTML abstract Mortimer, Michael: The Theropod Database: Phylogeny of taxa. Retrieved 2013-MAR-02. Tree of Life: Pelecaniformes
Fresh water is any occurring water except seawater and brackish water. Fresh water includes water in ice sheets, ice caps, icebergs, ponds, rivers and underground water called groundwater. Fresh water is characterized by having low concentrations of dissolved salts and other total dissolved solids. Though the term excludes seawater and brackish water, it does include mineral-rich waters such as chalybeate springs. Fresh water is not the same as potable water. Much of the earth's fresh water is unsuitable for drinking without some treatment. Fresh water can become polluted by human activities or due to occurring processes, such as erosion. Water is critical to the survival of all living organisms; some organisms can thrive on salt water, but the great majority of higher plants and most mammals need fresh water to live. Fresh water can be defined as water with less than 500 parts per million of dissolved salts. Other sources give higher upper salinity limits for e.g. 1000 ppm or 3000 ppm. Fresh water habitats are classified as either lentic systems, which are the stillwaters including ponds, lakes and mires.
There is, in addition, a zone which bridges between groundwater and lotic systems, the hyporheic zone, which underlies many larger rivers and can contain more water than is seen in the open channel. It may be in direct contact with the underlying underground water; the majority of fresh water on Earth is in ice caps. The source of all fresh water is precipitation from the atmosphere, in the form of mist and snow. Fresh water falling as mist, rain or snow contains materials dissolved from the atmosphere and material from the sea and land over which the rain bearing clouds have traveled. In industrialized areas rain is acidic because of dissolved oxides of sulfur and nitrogen formed from burning of fossil fuels in cars, factories and aircraft and from the atmospheric emissions of industry. In some cases this acid rain results in pollution of rivers. In coastal areas fresh water may contain significant concentrations of salts derived from the sea if windy conditions have lifted drops of seawater into the rain-bearing clouds.
This can give rise to elevated concentrations of sodium, chloride and sulfate as well as many other compounds in smaller concentrations. In desert areas, or areas with impoverished or dusty soils, rain-bearing winds can pick up sand and dust and this can be deposited elsewhere in precipitation and causing the freshwater flow to be measurably contaminated both by insoluble solids but by the soluble components of those soils. Significant quantities of iron may be transported in this way including the well-documented transfer of iron-rich rainfall falling in Brazil derived from sand-storms in the Sahara in north Africa. Saline water in oceans and saline groundwater make up about 97% of all the water on Earth. Only 2.5–2.75% is fresh water, including 1.75–2% frozen in glaciers and snow, 0.5–0.75% as fresh groundwater and soil moisture, less than 0.01% of it as surface water in lakes and rivers. Freshwater lakes contain about 87% of this fresh surface water, including 29% in the African Great Lakes, 22% in Lake Baikal in Russia, 21% in the North American Great Lakes, 14% in other lakes.
Swamps have most of the balance with only a small amount in rivers, most notably the Amazon River. The atmosphere contains 0.04% water. In areas with no fresh water on the ground surface, fresh water derived from precipitation may, because of its lower density, overlie saline ground water in lenses or layers. Most of the world's fresh water is frozen in ice sheets. Many areas suffer from lack of distribution such as deserts. Water is a critical issue for the survival of all living organisms; some can use salt water but many organisms including the great majority of higher plants and most mammals must have access to fresh water to live. Some terrestrial mammals desert rodents, appear to survive without drinking, but they do generate water through the metabolism of cereal seeds, they have mechanisms to conserve water to the maximum degree. Fresh water creates a hypotonic environment for aquatic organisms; this is problematic for some organisms with pervious skins or with gill membranes, whose cell membranes may burst if excess water is not excreted.
Some protists accomplish this using contractile vacuoles, while freshwater fish excrete excess water via the kidney. Although most aquatic organisms have a limited ability to regulate their osmotic balance and therefore can only live within a narrow range of salinity, diadromous fish have the ability to migrate between fresh water and saline water bodies. During these migrations they undergo changes to adapt to the surroundings of the changed salinities; the eel uses the hormone prolactin, while in salmon the hormone cortisol plays a key role during this process. Many sea birds have special glands at the base of the bill; the marine iguanas on the Galápagos Islands excrete excess salt through a nasal gland and they sneeze out a salty excretion. Freshwater molluscs include freshwater snails and freshwater bivalves. Freshwater crustaceans include crayfish. Freshwater biodiversity faces many threats; the World Wide Fund for Nature's Living Planet Index noted an 83% decline in the populations of freshwater vertebrates between 1970 and 2014.
These declines continue to outpace