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Rudolf Arndt
Rudolf Gottfried Arndt (31 March 1835 – 29 January 1900) was a German psychiatrist from Bialken, district of Marienwerder. Biography Arndt studied in Greifswald and Halle. As a student, his instructors included Felix von Niemeyer (1820–1871), Heinrich Adolf von Bardeleben (1819–1895), and Heinrich Philipp August Damerow (1798–1866). He was conferred doctor of medicine on 20 February 1860. From 1861 he maintained a private practice, and also participated in the Second Schleswig War (1864), Austro-Prussian War (1866) and Franco-Prussian War (1870–71). In 1867 he obtained his habilitation, subsequently serving as director of the ''Irren-Heil- und Pflege-Anstalt'' in Greifswald. In 1873 he became an associate professor of psychiatry at Greifswald. He died of angina pectoris. He is known today for the " Arndt-Schulz rule", a pharmacologic principle of homeopathy that is named in conjunction with German chemist Hugo Schulz (1853-1932). He is also remembered for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pharmacology
Pharmacology is the science of drugs and medications, including a substance's origin, composition, pharmacokinetics, pharmacodynamics, therapeutic use, and toxicology. More specifically, it is the study of the interactions that occur between a living organism and chemicals that affect normal or abnormal biochemical function. If substances have medicinal properties, they are considered pharmaceuticals. The field encompasses drug composition and properties, functions, sources, synthesis and drug design, molecular and cellular mechanisms, organ/systems mechanisms, signal transduction/cellular communication, molecular diagnostics, interactions, chemical biology, therapy, and medical applications and antipathogenic capabilities. The two main areas of pharmacology are pharmacodynamics and pharmacokinetics. Pharmacodynamics studies the effects of a drug on biological systems, and pharmacokinetics studies the effects of biological systems on a drug. In broad terms, pharmacod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1900 Deaths
As of March 1 (Old Style, O.S. February 17), when the Julian calendar acknowledged a leap day and the Gregorian calendar did not, the Julian calendar fell one day further behind, bringing the difference to 13 days until February 28 (Old Style, O.S. February 15), 2100. Summary Political and military The year 1900 was the end of the 19th century and the beginning of the 20th century. Two days into the new year, the United States Secretary of State, U.S. Secretary of State John Hay announced the Open Door Policy regarding Qing dynasty, China, advocating for equal access for all nations to the Chinese market. The 1900 Galveston hurricane, Galveston hurricane would become the List of disasters in the United States by death toll, deadliest natural disaster in United States history, killing between 6,000 and 12,000 people, mostly in and near Galveston, Texas, as well as leaving 10,000 people homeless, destroying 7,000 buildings of all kinds in Galveston. As of 2025, it remains ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1835 Births
Events January–March * January 7 – anchors off the Chonos Archipelago on her second voyage, with Charles Darwin on board as naturalist. * January 8 – The United States public debt contracts to zero, for the only time in history. * January 24 – Malê Revolt: African slaves of Yoruba Muslim origin revolt against Brazilian owners at Salvador, Bahia. * January 26 ** Queen Maria II of Portugal marries Auguste de Beauharnais, 2nd Duke of Leuchtenberg, in Lisbon; he dies only two months later. ** Saint Paul's in Macau is largely destroyed by fire after a typhoon hits. * January 30 – The first assassination attempt against a President of the United States is carried out against U.S. President Andrew Jackson at the United States Capitol * February 1 – Slavery is abolished in Mauritius. * February 20 – 1835 Concepción earthquake: Concepción, Chile, is destroyed by an earthquake. The resulting tsunami destroys the neighboring city of Talcahuano. * March 2 – ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mental Illness
A mental disorder, also referred to as a mental illness, a mental health condition, or a psychiatric disability, is a behavioral or mental pattern that causes significant distress or impairment of personal functioning. A mental disorder is also characterized by a clinically significant disturbance in an individual's cognition, emotional regulation, or behavior, often in a social context. Such disturbances may occur as single episodes, may be persistent, or may be relapsing–remitting. There are many different types of mental disorders, with signs and symptoms that vary widely between specific disorders. A mental disorder is one aspect of mental health. The causes of mental disorders are often unclear. Theories incorporate findings from a range of fields. Disorders may be associated with particular regions or functions of the brain. Disorders are usually diagnosed or assessed by a mental health professional, such as a clinical psychologist, psychiatrist, psychiatric ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psychosis
In psychopathology, psychosis is a condition in which a person is unable to distinguish, in their experience of life, between what is and is not real. Examples of psychotic symptoms are delusions, hallucinations, and disorganized or incoherent thoughts or speech. Psychosis is a description of a person's state or symptoms, rather than a particular mental illness, and it is not related to psychopathy (a personality construct characterized by impaired empathy and remorse, along with bold, disinhibited, and egocentric traits). Common causes of chronic (i.e. ongoing or repeating) psychosis include schizophrenia or schizoaffective disorder, bipolar disorder, and brain damage (usually as a result of alcoholism). Acute (temporary) psychosis can also be caused by severe distress, sleep deprivation, sensory deprivation, some medications, and drug use (including alcohol, cannabis, hallucinogens, and stimulants). Acute psychosis is termed primary if it results from a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neurasthenia
Neurasthenia ( and () 'weak') is a term that was first used as early as 1829 for a mechanical weakness of the nerves. It became a major diagnosis in North America during the late nineteenth and early twentieth centuries after neurologist George Miller Beard reintroduced the concept in 1869. As a psychopathological term, the first to publish on neurasthenia was Michigan alienist E. H. Van Deusen of the Kalamazoo asylum in 1869. Also in 1868, New York neurologist George Beard used the term in an article published in the Boston Medical and Surgical Journal to denote a condition with symptoms of fatigue, anxiety, headache, heart palpitations, high blood pressure, neuralgia, and depressed mood. Van Deusen associated the condition with farm wives made sick by isolation and a lack of engaging activity; Beard connected the condition to busy society women and overworked businessmen. Neurasthenia was a diagnosis in the World Health Organization's ICD-10, but deprecated, and thu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apoplectic
Apoplexy () refers to the rupture of an internal organ and the associated symptoms. Informally or metaphorically, the term ''apoplexy'' is associated with being furious, especially as "apoplectic". Historically, it described what is now known as a hemorrhagic stroke, typically involving a ruptured blood vessel in the brain; modern medicine typically specifies the anatomical location of the bleeding, such as cerebral apoplexy, ovarian apoplexy, or pituitary apoplexy. Historical meaning From the late 14th to the late 19th century, the diagnosis ''apoplexy'' referred to any sudden death that began with abrupt loss of consciousness, especially when the victim died within seconds after losing consciousness. The word ''apoplexy'' was sometimes used to refer to the symptom of sudden loss of consciousness immediately preceding death. Strokes, ruptured aortic aneurysms, and even heart attacks were referred to as apoplexy in the past, because before the advent of biomedical science, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Order Of The Zähringer Lion
The Order of the Zähringer Lion was instituted on 26 December 1812 by Karl, Grand Duke of Baden, in memory of the Dukes of Zähringen from whom he was descended. Classes It had five classes: *Grand Cross *Commander, First Class *Commander, Second Class *Knight, First Class *Knight, Second Class Insignia The order's insignia consists of a green enameled cross with four arms of equal length, whose angles are filled out with golden clasps. The gold-edged medallion shows the tribal symbol of the Zähringers in coloured enamel. Around the circle is the order's motto, ''FÜR EHRE UND WAHRHEIT'' (German for "FOR HONOUR AND TRUTH"). On the back, the Zähringer lion is portrayed on a red background. The order's ribbon is green with orange-yellow stripes along the edges. For special awards, the order was granted with oak leaves and from 1866, it could also be awarded with crossed swords for military services. The oak leaves originally carried an "L" cipher, which went out of use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iron Cross
The Iron Cross (, , abbreviated EK) was a military decoration in the Kingdom of Prussia, the German Empire (1871–1918), and Nazi Germany (1933–1945). The design, a black cross pattée with a white or silver outline, was derived from the insignia of the medieval Teutonic Order and borne by its knights from the 13th century. As well as being a military medal, it has also been used as an emblem by the Prussian Army, the Imperial German Army, and the of the Weimar Republic, while the ''Balkenkreuz'' (bar cross) variant was used by the ''Wehrmacht''. The Iron Cross is now the emblem of the , the modern German armed forces. King Frederick William III of Prussia established the Iron Cross award on 17 March 1813 during the Napoleonic Wars (EK 1813). The award was backdated to the birthday (10 March) of his late wife, Louise of Mecklenburg-Strelitz, Queen Louise, who was the first person to receive it (posthumously). The Iron Cross was also awarded during the Franco-Prussian War ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Order Of The Crown (Prussia)
The Royal Order of the Crown () was a Prussian order of chivalry. Instituted in 1861 as an honour equal in rank to the Order of the Red Eagle, membership could only be conferred upon commissioned officers (or civilians of approximately equivalent status), but there was a medal associated with the order which could be earned by non-commissioned officers and enlisted men. Officially the Order of the Red Eagle and the Order of the Crown were equal. Most officials did however prefer to be appointed in the older Order of the Red Eagle. The Order of the Crown was often used as an award for someone who had to be rewarded while the Prussian government did not want to use the Order of the Red Eagle. Classes The Order had six classes: *Grand Cross – wore the Grand Cross badge on a sash on the right shoulder, plus the star on the left chest; *1st Class – wore the badge on a sash on the right shoulder, plus the star on the left chest; *2nd Class – wore the badge on a necklet, plus t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neurasthenia
Neurasthenia ( and () 'weak') is a term that was first used as early as 1829 for a mechanical weakness of the nerves. It became a major diagnosis in North America during the late nineteenth and early twentieth centuries after neurologist George Miller Beard reintroduced the concept in 1869. As a psychopathological term, the first to publish on neurasthenia was Michigan alienist E. H. Van Deusen of the Kalamazoo asylum in 1869. Also in 1868, New York neurologist George Beard used the term in an article published in the Boston Medical and Surgical Journal to denote a condition with symptoms of fatigue, anxiety, headache, heart palpitations, high blood pressure, neuralgia, and depressed mood. Van Deusen associated the condition with farm wives made sick by isolation and a lack of engaging activity; Beard connected the condition to busy society women and overworked businessmen. Neurasthenia was a diagnosis in the World Health Organization's ICD-10, but deprecated, and thu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
