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Adolf Fick
Adolf Eugen Fick (3 September 1829 – 21 August 1901) was a German-born physician and physiologist. Early life and education Fick began his work in the formal study of mathematics and physics before realising an aptitude for medicine. He then earned his doctorate in medicine from the University of Marburg in 1851. As a fresh medical graduate, he began his work as a prosector.The Virtual Laboratory: Fick, Adolf Eugen accessed 5 February 2006 He died in at age 71. Career In 1855, he introduced Fick's laws of diffusion, which govern the |
Kassel
Kassel (; in Germany, spelled Cassel until 1926) is a city on the Fulda River in North Hesse, northern Hesse, in Central Germany (geography), central Germany. It is the administrative seat of the Regierungsbezirk Kassel (region), Kassel and the district Kassel (district), of the same name, and had 201,048 inhabitants in December 2020. The former capital of the States of Germany, state of Hesse-Kassel, it has many palaces and parks, including the Bergpark Wilhelmshöhe, which is a UNESCO World Heritage Site. Kassel is also known for the ''documenta'' Art exhibition, exhibitions of contemporary art. Kassel has a Public university, public University of Kassel, university with 25,000 students (2018) and a multicultural population (39% of the citizens in 2017 had a migration background). History Kassel was first mentioned in 913 AD, as the place where two deeds were signed by King Conrad of Franconia, Conrad I. The place was called ''Chasella'' or ''Chassalla'' and was a fortifi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Germany
Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total population of over 84 million in an area of , making it the most populous member state of the European Union. It borders Denmark to the north, Poland and the Czech Republic to the east, Austria and Switzerland to the south, and France, Luxembourg, Belgium, and the Netherlands to the west. The Capital of Germany, nation's capital and List of cities in Germany by population, most populous city is Berlin and its main financial centre is Frankfurt; the largest urban area is the Ruhr. Settlement in the territory of modern Germany began in the Lower Paleolithic, with various tribes inhabiting it from the Neolithic onward, chiefly the Celts. Various Germanic peoples, Germanic tribes have inhabited the northern parts of modern Germany since classical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1829 Births
Events January–March * January 19 – Ernst August Friedrich Klingemann, August Klingemann's adaptation of Johann Wolfgang von Goethe's ''Goethe's Faust, Faust'' premieres in Braunschweig. * February 27 – Battle of Tarqui: Troops of Gran Colombia and Peru battle to a draw. * March 11 – German composer Felix Mendelssohn conducts the first performance of Johann Sebastian Bach's ''St Matthew Passion'' since the latter's death in 1750, in Berlin; the success of this performance sparks a revival of interest in Bach. * March 21 – The bloodless Wellington–Winchilsea duel takes place at Battersea near London * March 22 – Greece receives autonomy from the Ottoman Empire in the London Protocol (1829), London Protocol, signed by Russian Empire, Russia, France and Britain, effectively ending the Greek War of Independence. Greece continues to seek full independence through diplomatic negotiations with the three Great Powers. * March 31 – Pope Pius VIII succeeds Pope Leo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Max Planck Institute For The History Of Science
The Max Planck Institute for the History of Science (German: Max-Planck-Institut für Wissenschaftsgeschichte) is a scientific research institute founded in March 1994. It is dedicated to addressing fundamental questions of the history of knowledge from the Neolithic era to the present day, and its researchers pursue a historical epistemology in their study of how new categories of thought, proof, and experience have emerged in interactions between the sciences and their ambient cultures. Organization The MPIWG comprises three departments and several independent research groups. As of August 2024, two departments are filled: * "Knowledge Systems and Collective Life," directed by Etienne Benson * "Artifacts, Action, Knowledge," directed by Dagmar Schäfer Hans-Jörg Rheinberger, who headed Department III from 1995 to 2014, and Lorraine Daston, who headed Department II from 1995 to 2019, remain at the MPIWG as emerita. Jürgen Renn headed the department "Structural Changes in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virtual Laboratory
The online project Virtual Laboratory. Essays and Resources on the Experimentalization of Life, 1830-1930, located at the Max Planck Institute for the History of Science, is dedicated to research in the history of the experimentalization of life. The term experimentalization describes the interaction between the life sciences, the arts, architecture, media and technology within the experimental paradigm, ca. 1830 to 1930. The Virtual Laboratory is a platform that not only presents work on this topic but also acts as a research environment for new studies. History In 1977, the first version of the Virtual Laboratory was presented, titled Virtual Laboratory of Physiology. At this time, the main focus lay on the development of technological preconditions of physiological research in the 19th century. Therefore, a database with relevant texts and images was created. In 1998, the concept still used today was created after a series of modifications, followed by the publication of a cd-ROM ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Direct Fick
The Fick principle states that blood flow to an organ can be calculated using a marker substance if the following information is known: * Amount of marker substance taken up by the organ per unit time * Concentration of marker substance in arterial blood supplying the organ * Concentration of marker substance in venous blood leaving the organ Developed by Adolf Eugen Fick (1829–1901), the Fick principle has been applied to the measurement of cardiac output. Its underlying principles may also be applied in a variety of clinical situations. In Fick's original method, the "organ" was the entire human body and the marker substance was oxygen. The first published mention was in conference proceedings from July 9, 1870 from a lecture he gave at that conference; it is this publishing that is most often used by articles to cite Fick's contribution.The principle may be applied in different ways. For example, if the blood flow to an organ is known, together with the arterial and venous co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cardiac Output
In cardiac physiology, cardiac output (CO), also known as heart output and often denoted by the symbols Q, \dot Q, or \dot Q_ , edited by Catherine E. Williamson, Phillip Bennett is the volumetric flow rate of the heart's pumping output: that is, the volume of blood being pumped by a single Ventricle (heart), ventricle of the heart, per unit time (usually measured per minute). Cardiac output (CO) is the product of the heart rate (HR), i.e. the number of heartbeats per minute (bpm), and the stroke volume (SV), which is the volume of blood pumped from the left ventricle per beat; thus giving the formula: :CO = HR \times SV Values for cardiac output are usually denoted as L/min. For a healthy individual weighing 70 kg, the cardiac output at rest averages about 5 L/min; assuming a heart rate of 70 beats/min, the stroke volume would be approximately 70 mL. Because cardiac output is related to the quantity of blood delivered to various parts of the body, it is an important com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diffusion
Diffusion is the net movement of anything (for example, atoms, ions, molecules, energy) generally from a region of higher concentration to a region of lower concentration. Diffusion is driven by a gradient in Gibbs free energy or chemical potential. It is possible to diffuse "uphill" from a region of lower concentration to a region of higher concentration, as in spinodal decomposition. Diffusion is a stochastic process due to the inherent randomness of the diffusing entity and can be used to model many real-life stochastic scenarios. Therefore, diffusion and the corresponding mathematical models are used in several fields beyond physics, such as statistics, probability theory, information theory, neural networks, finance, and marketing. The concept of diffusion is widely used in many fields, including physics (Molecular diffusion, particle diffusion), chemistry, biology, sociology, economics, statistics, data science, and finance (diffusion of people, ideas, data and price v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flanders
Flanders ( or ; ) is the Dutch language, Dutch-speaking northern portion of Belgium and one of the communities, regions and language areas of Belgium. However, there are several overlapping definitions, including ones related to culture, language, politics, and history, and sometimes involving neighbouring countries. The demonym associated with Flanders is Flemings, Fleming, while the corresponding adjective is Flemish people, Flemish, which can also refer to the collective of Dutch dialects spoken in that area, or more generally the Belgian variant of Standard Dutch. Most Flemings live within the Flemish Region, which is a federal state within Belgium with its own elected government. However, like Belgium itself, the official capital of Flanders is the City of Brussels, which lies within the Brussels, Brussels-Capital Region, not the Flemish Region, and the majority of residents there are French speaking. The powers of the Flemish Government in Brussels are limited mainly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prosection
A prosection is the dissection of a cadaver (human or animal) or part of a cadaver by an experienced anatomist in order to demonstrate for students anatomic structure. In a dissection, students learn by doing; in a prosection, students learn by either observing a dissection being performed by an experienced anatomist or examining a specimen that has already been dissected by an experienced anatomist (etymology: Latin pro- "before" + sectio "a cutting"). A prosection may also refer to the dissected cadaver or cadaver part which is then reassembled and provided to students for review. Use in medicine Prosections are used primarily in the teaching of anatomy in disciplines as varied as human medicine, chiropractic, veterinary medicine, and physical therapy. Prosections may also be used to teach surgical techniques (such as the suturing of skin), pathology, physiology Physiology (; ) is the science, scientific study of function (biology), functions and mechanism (biology), mech ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doctorate
A doctorate (from Latin ''doctor'', meaning "teacher") or doctoral degree is a postgraduate academic degree awarded by universities and some other educational institutions, derived from the ancient formalism '' licentia docendi'' ("licence to teach"). In most countries, a research degree qualifies the holder to teach at university level in the degree's field or work in a specific profession. There are a number of doctoral degrees; the most common is the Doctor of Philosophy (PhD), awarded in many different fields, ranging from the humanities to scientific disciplines. Many universities also award honorary doctorates to individuals deemed worthy of special recognition, either for scholarly work or other contributions to the university or society. History Middle Ages The term ''doctor'' derives from Latin, meaning "teacher" or "instructor". The doctorate (Latin: ''doctoratus'') appeared in medieval Europe as a license to teach Latin (''licentia docendi'') at a university. Its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physics
Physics is the scientific study of matter, its Elementary particle, fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. "Physical science is that department of knowledge which relates to the order of nature, or, in other words, to the regular succession of events." It is one of the most fundamental scientific disciplines. "Physics is one of the most fundamental of the sciences. Scientists of all disciplines use the ideas of physics, including chemists who study the structure of molecules, paleontologists who try to reconstruct how dinosaurs walked, and climatologists who study how human activities affect the atmosphere and oceans. Physics is also the foundation of all engineering and technology. No engineer could design a flat-screen TV, an interplanetary spacecraft, or even a better mousetrap without first understanding the basic laws of physics. (...) You will come to see physics as a towering achievement of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
