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Hemin is protoporphyrin IX containing a ferric iron (Fe 3+) ion with a coordinating chloride ligand. Chemically, hemin differs from the related heme-compound hematin chiefly in that the coordinating ion is a chloride ion in hemin, whereas the coordinating ion is a hydroxide ion in hematin. [2] The iron ion in haem is ferrous (Fe 2+ ), whereas ...
In 1967, Jose C. Olivares, with his son-in-law, Dr. Vicente M. Santos Sr., founded the Our Lady of Fatima Hospital in Valenzuela City. In 1973 he expanded the hospital to include a nursing college. [1] In 1979 the Fatima College of Medicine was established, with its pioneer batch graduating in 1983. In the 1990s the college diversified ...
Protein tertiary structure is the three-dimensional shape of a protein. The tertiary structure will have a single polypeptide chain "backbone" with one or more protein secondary structures, the protein domains. Amino acid side chains and the backbone may interact and bond in a number of ways. The interactions and bonds of side chains within a ...
Richat Structure. / 21.114700°N 11.394300°W / 21.114700; -11.394300. The Richat Structure, or Guelb er Richât ( Arabic: قلب الريشات Qalb ar-Rīšāt ), is a prominent circular geological feature in the Adrar Plateau of the Sahara. It is located near Ouadane in the Adrar Region of Mauritania.
The sanctuary of Our Lady of Lourdes began with the Marian apparitions to Bernadette Soubirous in 1858 in the town of Lourdes.On 11 February 1858, a 14-year-old peasant girl, called Bernadette Soubirous, said she saw a "lady" while playing near the grotto of Massabielle (from masse vieille: "old mass") with her sister and a friend, on the left bank of the Gave de Pau river.
The scale of the fine structure splitting relative to the gross structure energies is on the order of (Zα) 2, where Z is the atomic number and α is the fine-structure constant, a dimensionless number equal to approximately 1/137. Relativistic corrections. The fine structure energy corrections can be obtained by using perturbation theory.
The shrine is located near the Our Lady of Fatima University campus in Marulas, Valenzuela City in Metro Manila, Philippines. The shrine is one of the three major pilgrimage sites in the Diocese of Malolos, with the National Shrine of St. Anne in Hagonoy and the National Shrine of Divine Mercy in Marilao as the other sites.
Oxygen is a chemical element; it has symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds. Oxygen is the most abundant element in Earth's crust, and after hydrogen and helium, it ...