The delta hosts many rare varieties of birds during the spring breeding season (the total reported number of species is about 200; about 40 species are listed in the Lithuanian Red Book of Endangered Species). It is also the most important layover for migrating birds in Lithuania. Millions of birds and hundreds of species travel through this area each year, including some internationally endangered species: the white-tailed eagle, the barnacle goose, cranes, dunlins and aquatic warblers. The principal research facilities are located in Ventė Cape (Ventės ragas, sometimes referred to as the Ventė Peninsula). One of the first bird ringing stations in Europe was opened there in 1929 by a Lithuanian zoologist, Tadas Ivanauskas. Birds ringed at the Cape have been found migrating to Iran, Egypt and even to the Republic of South Africa.
Another of the delta's special features is Lake Krokų Lanka (near where the Nemunas debouches), which formed when the river's outwash separated it from the Curonian Lagoon. It is the largest lake in the delta region, covering 7.93 km², and the only lake of marine origin in Lithuania.
The Nemunas Delta wetlands are considered globally significant and are protected under the Ramsar Convention. To safeguard the delta's wildlife and facilitate research, the Nemunas Delta Regional Park was created in 1992. It covers 239.5 km² and consists of 14 reserves and one water reservoir. About 20% of the area is covered by water. Since 1999, the Lithuanian Society of Ornithologists and the Nemunas Delta Regional Park Administration have been organizing bird counts every October. The rally is an open, international, and non-professional attempt to tally as many bird species as possible. Bird counts assist in identifying environmental threats to the well-being of birds or, conversely, in assessing the outcomes of environmental management initiatives intended to ensure the survival of at-risk species or encourage the breeding of species for aesthetic or ecological reasons. The delta undergoes annual flooding, but the greatest threats to its integrity are posed by pollution, agriculture, the fishing industry, and tourism.
The delta measures the sensitivity of a derivative's value to changes in the price of the underlying asset. The delta (Δ) of an instrument is the first mathematical derivative of the derivative's value with respect to the underlier's price.
Mammals found in the delta include fox, beaver, elk, wild boar and otter.
Delta Phi Delta was founded at the Cleveland Law School of Baldwin University, September 15, 1900, by C. E. Schmick, E. Quigley, F. W. Sinram, J. L. Barrett, W. F. Mackay, J. H. Orgill and Arthur Born. It went national with the establishment of Beta Chapter (now Harlan-McKusick Senate) at the University of South Dakota School of Law in 1904. Delta Phi Delta's Magazine was the Syllabus, first published in 1911. Delta Theta Phi now uses that name for the newsletter distributed to elected members of the administrative organization.
In 1854 the University of Vermont chapter, which was named Delta Psi, severed its connections with the Anti-Secret Confederation. The cause of separation is lost to history with Delta Upsilon's own records recording that the exit of Delta Psi is "from causes unknown to us". A Delta Psi historian later claimed the withdrawal was due to the expenses the fraternity was incurring sending delegates to the meetings of the Anti-Secret Confederation. It has also been speculated that Delta Psi felt local pressure in maintaining the A.S.C.'s militant stance against secret ritual; after separating from the A.S.C. it began to undertake secret work. (Delta Upsilon has maintained that it does not consider members of Delta Psi during the period it was affiliated with the A.S.C. to also be members of Delta Upsilon, the separation being so total that the "action removed all its members from membership in the Delta Upsilon fraternity".)
The DELTA System is a group of integrated programs that are built on the DELTA format. The main program is the DELTA Editor, which provides an interface for creating a matrix of characters for any number taxa. A whole suite of programs can be found and run from within the DELTA editor which allow for the output of an interactive identification key, called Intkey. Other powerful features include the output of natural language descriptions, full diagnoses, and differences among taxa.
The 'Delta 3200' product is not actually rated at ISO 3200/36°. Its speed is only 1000/31° following the ISO methods, but it has a very wide exposure latitude. Thus it can be successfully push processed to EI 3200 or 6400, or even 12500. Delta 3200 was introduced in 1998, 10 years after Kodak's similar T-MAX P3200. It replaced Ilford's high speed 'HPS' film.
Delta Psi continued as a very successful local fraternity for 150 years after leaving Delta Upsilon. During this period, DU avoided attempts to colonize the University of Vermont. In 2014, ten years after the collapse of Delta Psi, Delta Upsilon entered the Burlington campus for the first time since its split with Delta Psi, chartering a colony.
Delta copying is a fast way of copying a file that is partially changed, when a previous version is present on the destination location. With delta copying, only the changed part of a file is copied. It is usually used in backup or file copying software, often to save bandwidth when copying between computers over a private network or the internet.
Delta 400 can also be pushed to EI 3200.
Delta Theta Tau is unique in that it has a separate fund that is used for members entering their golden years who experience financial difficulties. Delta Home provides anonymous assistance to members who apply.
Delta L introduced the Extended Long Tank first stage with a uniform 8 ft diameter and used the United Technologies FW-4D motor as a third stage.
Delta Lloyd formed the core of the Delta Lloyd Group. It offered savings accounts, insurance and financial planning.
The Delta A used the MB-3 Block II engine, with 170000 lbf of thrust vs. 152000 lbf for the Block I.
These vehicles would be able to place 650 lb into a 150 to 230 mi LEO or 100 lb into GTO. Eleven of the twelve initial Delta flights were successful and until 1968, no failures occurred in the first two minutes of launch. The high degree of success achieved by Delta stood in contrast to the endless parade of failures that dogged West Coast Thor launches. The total project development and launch cost came to $43 million, $3 million over budget. An order for 14 more vehicles was made before 1962.
The Delta N combined a Long Tank Thor (MB-3-3 engine) first stage augmented with 3 Castor 2 boosters and a Delta E second stage. There were 6 successful Delta N launches from 1968 until 1972.
15. 13 December 1962. Relay 1, second NASA communications satellite, NASA's first active one 16. 13 February 1963. pad 17b. Syncom 1; Thiokol Star 13B solid rocket as apogee kick motor 20. July 26, 1963. Syncom 2; geosynchronous orbit, but inclined 33° due to the limited performance of the Delta
In 2003, of the 78 million people in Vietnam, almost a third (24 million) live in the Red River basin, including over 17 million people in the delta itself. There are many large industrial zones in the Red River delta clustering in Viet Tri, Hanoi, Haiphong and Nam Dinh. Most of the population works in rice cultivation but the delta region hosts other important economic activities such as fisheries, aquaculture, land reclamation for agriculture, harbor construction, mangrove forestry, etc. The socio-economic development in the delta is also affected by seasonal storms, flooding, coastal erosion, silting, salt water intrusion, etc.