In mathematics, Bessel functions, first defined by the mathematician Daniel Bernoulli and generalized by Friedrich Bessel, are canonical solutions y ( x ) of Bessel's differential equation:

Friedrich Wilhelm Bessel ( 22 July 1784 – 17 March 1846 ) was a German mathematician, astronomer, and systematizer of the Bessel functions ( which were discovered by Daniel Bernoulli ).

* October 15 – Hans Daniel Ludwig Friedrich Hassenpflug, German statesman ( b. 1794 )

Some of the main philosophers who have dealt with this issue are Marcus Aurelius, Omar Khayyám, Thomas Hobbes, Baruch Spinoza, Gottfried Leibniz, David Hume, Baron d ' Holbach ( Paul Heinrich Dietrich ), Pierre-Simon Laplace, Arthur Schopenhauer, William James, Friedrich Nietzsche, Albert Einstein, Niels Bohr, Ralph Waldo Emerson and, more recently, John Searle, Ted Honderich, and Daniel Dennett.

Neurofibromatosis ( or von Recklinghausen disease ) was first described in 1882 by the German pathologist, Friedrich Daniel von Recklinghausen.

Trousseau did not associate diabetes with iron accumulation ; the recognition that infiltration of the pancreas with iron might disrupt endocrine function resulting in diabetes was made by Friedrich Daniel von Recklinghausen in 1890.

Bancroft capped off his education with a European tour, in the course of which he sought out almost every distinguished man in the world of letters, science and art, including Johann Wolfgang von Goethe, Wilhelm von Humboldt, Friedrich Daniel Ernst Schleiermacher, Georg Wilhelm Friedrich Hegel, Lord Byron, Barthold Georg Niebuhr, Christian Charles Josias Bunsen, Friedrich Karl von Savigny, Varnhagen von Ense, Victor Cousin, Benjamin Constant and Alessandro Manzoni.

He gave Merrick as an example of the disease, which German pathologist Friedrich Daniel von Recklinghausen had described in 1882.

* Friedrich Daniel Ernst Schleiermacher was university preacher and professor of theology to the University of Halle, where he remained until 1807.

In the meantime, he took on the task of translating and prefacing Friedrich Daniel Ernst Schleiermacher's essay on the Gospel of St Luke.

The Kriegslieder were very popular, and set by Georg Philipp Telemann and Christian Friedrich Daniel Schubart.

* Meissner ( né Meisner ), Carl Daniel Friedrich 1864.

In the 18th century, literary rhapsodies first became linked with music, as in Christian Friedrich Daniel Schubart's Musicalische Rhapsodien ( 1786 ), a collection of songs with keyboard accompaniment, together with a few solo keyboard pieces.

* Friedrich Daniel Ernst Schleiermacher ( 1768 – 1834 ), philosopher

Friedrich Daniel Bassermann, a liberal deputy in the second chamber of the parliament of Baden, helped to trigger the final impulse for the election of a pan-German assembly ( or parliament ).

From left to right: Heinrich von Gagern, Alexander von Soiron, Carl Theodor Welcker and Friedrich Daniel Bassermann.

Among the foreign scholars invited to work at the academy were the mathematicians Leonhard Euler, Anders Johan Lexell, Christian Goldbach, Georg Bernhard Bilfinger, Nicholas and Daniel Bernoulli, botanist Johann Georg Gmelin, embryologists Caspar Friedrich Wolff, astronomer and geographer Joseph-Nicolas Delisle, physicist Georg Wolfgang Kraft, and historian Gerhard Friedrich Müller.

Erasmus, Paracelsus, Daniel Bernoulli, Jacob Burckhardt, Leonhard Euler, Friedrich Nietzsche, Eugen Huber, Carl Jung, Karl Barth, Hermann Peter, and Hans Urs von Balthasar are among those associated with the university.

Philosophers and theologians such as Immanuel Kant, Arthur Schopenhauer and Friedrich Daniel Ernst Schleiermacher, and historians Heinrich Graetz and Gottfried Bernhardy.

Friedrich Daniel Ernst Schleiermacher, for instance, produced Der christliche Glaube nach den Grundsätzen der evangelischen Kirche ( The Christian Faith According to the Principles of the Protestant Church ) in the 1820s, in which the core idea is the universal presence amongst humanity ( sometimes more hidden, sometimes more explicit ) of a feeling or awareness of ' absolute dependence '; all theological themes are reinterpreted as descriptions or expressions of modifications of this feeling.

* Friedrich Daniel von Recklinghausen ( 1833 – 1910 )

The economically active Middle Class was represented by only about 60 deputies, including many publishers, including Bassermann and Georg Friedrich Kolb, but also businessmen, industrialists and bankers, such as Hermann Henrich Meier, Ernst Merck, Hermann von Beckerath, Gustav Mevissen and Carl Mez.

The November 1848 discussion of Bassermann and Hergenhahn with Friedrich Wilhelm IV were also aiming in the same direction.