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Louis Denis Jules Gavarret
Louis Denis Jules Gavarret, sometimes referred to as Louis Dominique Jules Gavarret (28 January 1809 – 30 August 1890) was a French physician who advocated the use of statistics in medicine. Life Gavarret was born in Astaffort, Lot-et-Garonne. He studied at the ''Ecole Polytechnique'' in Paris, followed by military service as an artillery officer. In 1833 he resigned his commission and began his studies with Gabriel Andral (1797–1876). Gavarret is remembered for the systemization and expansion of Pierre Charles Alexandre Louis' (1787-1872) statistical methodology in regards to medicine. Pierre Louis' contention was to make medicine an exact science in diagnosis of a medical condition, and also to refute the "inductive approach" that was prevalent at the time. Gavarret was a major proponent of the statistical method. He emphasized that the process would only work under certain conditions, such as the medical cases must be comparable, and there has to exist enough examples ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gavarret Jules
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Gavarret is a surname of French origin. People *Louis Denis Jules Gavarret, French scientist * Hunaud de Gavarret, French abbott * Pierre I. de Gavarret, bishop of the Ancient Diocese of Oloron Places * Gavarret-sur-Aulouste See also *Gave (placename element) The French word ''gave'' is a generic name referring to torrential rivers, in the west side of the Pyrenees. In the central part of the Pyrenees, the name ''neste'' has the same function. The word ''gave'' derives from the old Gascon ''gabar'', a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astaffort
Astaffort (; oc, Astahòrt) is a commune in the Lot-et-Garonne department in southwestern France. It is situated on the river Gers, about 15 km south of Agen. Astaffort has a mill and the church of Sainte-Geneviève. Population Personalities The popular singer-songwriter Francis Cabrel spent his childhood in Astaffort. See also *Communes of the Lot-et-Garonne department The following is a list of the 319 communes of the French department of Lot-et-Garonne. The communes cooperate in the following intercommunalities (as of 2022):Communes of Lot-et-Garonne {{LotGaronne-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gabriel Andral
Gabriel Andral (6 November 1797 – 13 February 1876) was a distinguished French pathologist and a professor at the University of Paris. In 1828 Andral was appointed professor of hygiene, and in 1839 succeeded François-Joseph-Victor Broussais (1772–1838) as chair of general pathology and therapy, a position he held for 27 years. In 1823 he became a member of the Académie Nationale de Médecine. He was elected a Foreign Honorary Member of the American Academy of Arts and Sciences in 1849. Andral is remembered for his pioneer investigations of blood chemistry. He is considered to be the founder of scientific hematology, and is credited with its integration into clinical and analytical medicine. With his colleague, Louis Denis Jules Gavarret (1809–1890), he performed extensive studies of blood composition. They demonstrated that blood composition varies in different pathological conditions, and their findings showed the importance of blood chemistry as a means of confirming di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pierre Charles Alexandre Louis
Pierre-Charles-Alexandre Louis (14 April 178722 August 1872) was a French physician, clinician and pathology, pathologist known for his studies on tuberculosis, typhoid fever, and pneumonia, but Louis's greatest contribution to medicine was the development of the "numerical method", forerunner to epidemiology and the modern clinical trial, paving the path for evidence-based medicine. Biography Louis was born in Ay, Marne, Ay, Champagne (wine region), Champagne, the son of a wine merchant. He grew up during the French Revolution and initially thought to study law, later switching to medicine, graduating in 1813. His initial studies were in Reims, but he completed them in Paris. Louis married late in life, having a single son (Armand) who died of tuberculosis while still a boy in 1854, and Louis retired from medical practice the same year. The American politician Charles Sumner, who visited Louis and observed him teaching at the Hôtel-Dieu de Paris, described him as "a tall man, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Numerical Method
In numerical analysis, a numerical method is a mathematical tool designed to solve numerical problems. The implementation of a numerical method with an appropriate convergence check in a programming language is called a numerical algorithm. Mathematical definition Let F(x,y)=0 be a well-posed problem, i.e. F:X \times Y \rightarrow \mathbb is a real or complex functional relationship, defined on the cross-product of an input data set X and an output data set Y, such that exists a locally lipschitz function g:X \rightarrow Y called resolvent, which has the property that for every root (x,y) of F, y=g(x). We define numerical method for the approximation of F(x,y)=0, the sequence In mathematics, a sequence is an enumerated collection of objects in which repetitions are allowed and order matters. Like a set, it contains members (also called ''elements'', or ''terms''). The number of elements (possibly infinite) is calle ... of problems : \left \_ = \left \_, with F_n:X_n \times ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blood Composition
Blood is a body fluid in the circulatory system of humans and other vertebrates that delivers necessary substances such as nutrients and oxygen to the cells, and transports metabolic waste products away from those same cells. Blood in the circulatory system is also known as ''peripheral blood'', and the blood cells it carries, ''peripheral blood cells''. Blood is composed of blood cells suspended in blood plasma. Plasma, which constitutes 55% of blood fluid, is mostly water (92% by volume), and contains proteins, glucose, mineral ions, hormones, carbon dioxide (plasma being the main medium for excretory product transportation), and blood cells themselves. Albumin is the main protein in plasma, and it functions to regulate the colloidal osmotic pressure of blood. The blood cells are mainly red blood cells (also called RBCs or erythrocytes), white blood cells (also called WBCs or leukocytes) and platelets (also called thrombocytes). The most abundant cells in vertebrate blood a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biophysics
Biophysics is an interdisciplinary science that applies approaches and methods traditionally used in physics to study biological phenomena. Biophysics covers all scales of biological organization, from molecular to organismic and populations. Biophysical research shares significant overlap with biochemistry, molecular biology, physical chemistry, physiology, nanotechnology, bioengineering, computational biology, biomechanics, developmental biology and systems biology. The term ''biophysics'' was originally introduced by Karl Pearson in 1892.Roland Glaser. Biophysics: An Introduction'. Springer; 23 April 2012. . The term ''biophysics'' is also regularly used in academia to indicate the study of the physical quantities (e.g. electric current, temperature, stress, entropy) in biological systems. Other biological sciences also perform research on the biophysical properties of living organisms including molecular biology, cell biology, chemical biology, and biochemistry. Overview ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physiology
Physiology (; ) is the scientific study of functions and mechanisms in a living system. As a sub-discipline of biology, physiology focuses on how organisms, organ systems, individual organs, cells, and biomolecules carry out the chemical and physical functions in a living system. According to the classes of organisms, the field can be divided into medical physiology, animal physiology, plant physiology, cell physiology, and comparative physiology. Central to physiological functioning are biophysical and biochemical processes, homeostatic control mechanisms, and communication between cells. ''Physiological state'' is the condition of normal function. In contrast, ''pathological state'' refers to abnormal conditions, including human diseases. The Nobel Prize in Physiology or Medicine is awarded by the Royal Swedish Academy of Sciences for exceptional scientific achievements in physiology related to the field of medicine. Foundations Cells Although there are differ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acoustics
Acoustics is a branch of physics that deals with the study of mechanical waves in gases, liquids, and solids including topics such as vibration, sound, ultrasound and infrasound. A scientist who works in the field of acoustics is an acoustician while someone working in the field of acoustics technology may be called an Acoustical engineering, acoustical engineer. The application of acoustics is present in almost all aspects of modern society with the most obvious being the audio and noise control industries. Hearing (sense), Hearing is one of the most crucial means of survival in the animal world and speech is one of the most distinctive characteristics of human development and culture. Accordingly, the science of acoustics spreads across many facets of human society—music, medicine, architecture, industrial production, warfare and more. Likewise, animal species such as songbirds and frogs use sound and hearing as a key element of mating rituals or for marking territories. Art, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phonation
The term phonation has slightly different meanings depending on the subfield of phonetics. Among some phoneticians, ''phonation'' is the process by which the vocal folds produce certain sounds through quasi-periodic vibration. This is the definition used among those who study laryngeal anatomy and physiology and speech production in general. Phoneticians in other subfields, such as linguistic phonetics, call this process '' voicing'', and use the term ''phonation'' to refer to any oscillatory state of any part of the larynx that modifies the airstream, of which voicing is just one example. Voiceless and supra-glottal phonations are included under this definition. Voicing The phonatory process, or voicing, occurs when air is expelled from the lungs through the glottis, creating a pressure drop across the larynx. When this drop becomes sufficiently large, the vocal folds start to oscillate. The minimum pressure drop required to achieve phonation is called the phonation threshold ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Masson (publisher)
Masson was a French publisher which specialized principally in medical and scientific books and journals. It also published textbooks for secondary and tertiary education.Historique de l’éditeur: Elsevier-Masson rev-mal-respir.com. Retrieved 16 January 2022. Company history In 1802, Nicolas Crochard set up as a printer and bookseller in in association with Pierre-Antoine-Louis Allut. In 1804, Crochard continued the business on his own and from 1807, he specialised in scientific and medical publishing. In 1826, he passed the business to his son Eugène Crochard, who from 1835. would run the business with Victor Masson (1807—1879). In 1846, Masson became the sole proprietor ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Annales De Chimie Et De Physique
__NOTOC__ ''Annales de chimie et de physique'' ( French for ''Annals of Chemistry and Physics'') is a scientific journal founded in Paris, France, in 1789 under the title ''Annales de chimie''. One of the early editors was the French chemist Antoine Lavoisier. Lavoisier, an aristocrat, was guillotined in May 1794, ostensibly for tax fraud: and the journal was not published from 1794 to 1796 while the Reign of Terror was at its height under the French Directory. In 1815, it became the ''Annales de chimie et de physique'', and was published under that name for the next 100 years. In 1914, it split into two successor journals. The first one, '' Annales de physique'', was latterly published by EDP Sciences under the same name up to 2009, when it became integrated in the ''European Physical Journal'' series as the '' European Physical Journal H – Historical Perspectives on Contemporary Physics''. The second successor, ''Annales de chimie'', later became '' Annales de chimie: Scien ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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