scholarly journals The Role of the Fins in the Equilibrium of the Swimming Fish

1936 ◽  
Vol 13 (4) ◽  
pp. 476-493 ◽  
Author(s):  
J. E. HARRIS
Keyword(s):  
Wind Tunnel ◽  
Horizontal Plane ◽  
Vertical Plane ◽  
The Body ◽  
Pectoral Fins ◽  
Two Factors ◽  
Air Speed ◽  
Mustelus Canis ◽  
Relationship Of ◽  
The Relationship

1. An attempt was made to determine the relationship of the fins to the equilibrium of the swimming dogfish. 2. Two factors at least are involved in this equilibrium; passive mechanical forces and reflex motions of the fins themselves. The part played by the automatic (passive) components was estimated by experimenting on a model of Mustelus canis mounted in a wind tunnel tested at a suitable air speed. 3. The equilibrium in the horizontal plane (yawing equilibrium--for turning movements) is unstable without fins, completely stable only in the absence of the first dorsal fin, and is neutral when all fins are present. 4. In the vertical plane (pitching equilibrium--for rising and diving turns) the equilibrium is unstable without fins, and this instability is greatly increased by the presence of the pectorals. The pelvics have little or no effect. 5. Stability and controllability are inversely related. The fish is comparatively stable in the horizontal plane, extremely controllable in the vertical plane. This fact is closely related to the flexibility of the body for lateral movements. 6. The results obtained in the wind tunnel were confirmed by amputation of the fins of the living dogfish. 7. The normal equilibrium of the swimming dogfish in the vertical plane is determined largely by the pectoral fins and the heterocercal tail. 8. The relationship of these facts to the problem of the evolution of the swimming chordates is considered.

THE RELATIONSHIP OF MASS OF THE BODY, FISHERY LENGTH AND THE FISH – PRODUCTIVITY OF ONE-YEARS OF PIKEPERCH BY THE BREEDING THEM IN PONDS FOR CARPS

2017 ◽  
Vol 59 (2) ◽  
pp. 014-021
Author(s):  
Saya K. Koyshibaeva ◽  
◽  
Shokhan A. Alpeyisov ◽  
Evgeniy V. Fedorov ◽  
Nina S. Badryzlova ◽  
...  
Keyword(s):  
The Body ◽  
Relationship Of ◽  
The Relationship ◽  
Fish Productivity

Epilogue

2017 ◽  
Author(s):  
Joshua S. Walden
Keyword(s):  
The Body ◽  
The Self ◽  
The Individual ◽  
Relationship Of ◽  
The Relationship

The book’s epilogue explores the place of musical portraiture in the context of posthumous depictions of the deceased, and in relation to the so-called posthuman condition, which describes contemporary changes in the relationship of the individual with such aspects of life as technology and the body. It first examines Alfred Hitchcock’s Vertigo to view how Bernard Herrmann’s score relates to issues of portraiture and the depiction of the identity of the deceased. It then considers the work of cyborg composer-artist Neil Harbisson, who has aimed, through the use of new capabilities of hybridity between the body and technology, to convey something akin to visual likeness in his series of Sound Portraits. The epilogue shows how an examination of contemporary views of posthumous and posthuman identities helps to illuminate the ways music represents the self throughout the genre of musical portraiture.

The Psychology of Memory in Spenser's Faerie Queene

PMLA ◽  
1932 ◽  
Vol 47 (1) ◽  
pp. 89-96
Author(s):  
Daniel C. Boughner
Keyword(s):  
The Body ◽  
World City ◽  
Faerie Queene ◽  
Extended Treatment ◽  
Relationship Of ◽  
The Relationship ◽  
The Faerie Queene

From Plato and Aristotle, Hippocrates and Galen, through the medieval commentators, the Elizabethans inherited a body of complex psychological principles. An examination of these principles and their bearing on The Faerie Queene has so far been only casual and incidental. Since in Book ii, Canto ix, the poet combines one of the most widely used of medieval motifs—the conception of the body as a world, city, or castle—with certain current doctrines of psychology, such an inquiry is especially apposite. Spenser's use of the abundant contemporaneous literature of psychology affords material for an extended treatment such as that which Miss Anderson has made of Shakespeare's plays. The present study purposes to set forth one aspect of his system of psychology—his psychology of memory in the allegory of the Castle of Alma, to make clear the relationship of his system to the current Elizabethan doctrines, and to establish the purpose of certain departures from those doctrines.

The Materiality of the Text and Manuscript Culture

2021 ◽  
pp. 48-62
Author(s):  
Martin Eisner
Keyword(s):  
Human Person ◽  
Essential Element ◽  
The Body ◽  
Manuscript Culture ◽  
Christian Anthropology ◽  
Body And Soul ◽  
Christian Thought ◽  
Relationship Of ◽  
Materiality Of The Text ◽  
The Relationship

This article investigates the significance of the manuscripts of Virgil and other classical poets that Dante might have read. Calling attention to the presence of musical notation (neumes) in copies that share the particular Virgilian readings Dante quotes, this essay explores the resonance of one of those passages (Aeneas’ dream of Hector) in Dante’s poem. It shows how Dante uses this Virgilian episode to craft his encounter with Manfred where he considers the relationship of body and soul that constitutes one of the major differences between classical and Christian thought, as Augustine frequently noted. Just as Christian anthropology maintains that the body constitutes an essential element of the human person, this essay argues that the materiality of the texts Dante read constitutes a crucial source for understanding how Dante interpreted these texts.

The development of the lamb with particular reference to the alimentary tract

1964 ◽  
Vol 6 (2) ◽  
pp. 169-178 ◽  
Author(s):  
R. V. Large
Keyword(s):  
Body Weight ◽  
Alimentary Tract ◽  
Live Weight ◽  
The Body ◽  
Root Transformation ◽  
Feeding Regimes ◽  
Gut Fill ◽  
Relationship Of ◽  
The Relationship

1. Thirty Suffolk × Half bred lambs were slaughtered at the following ages: two twin lambs at birth and two singles and two twins at 1, 2, 3, 4, 6, 8 and 16 weeks of age.2. The following weights were recorded: live-weight immediately before slaughter; and carcass, head, skin, feet, alimentary tract, heart, liver, kidneys, lungs and trachea, and blood immediately afterwards.3. The alimentary tract was emptied and weighed in four separate parts; reticulo-rumen, omasum-abomasum, small intestine, large intestine.4. The volumes of the reticulo-rumen and the omasum-abomasum were measured by immersing in water and filling the organs with water to 2 cm. pressure.5. The in vitro digestive efficiency of rumen liquor from lambs of 1, 2, 3 and 4 weeks of age was assessed.6. Empty body weight was considered to be valuable in comparing animals of different ages or from different feeding regimes or at different times of the year because variations in gut ‘fill’ were eliminated.7. There were no differences between singles and twins in the relationship of the fresh weights of the parts of the body to empty body weight, except that development of the liver and the blood was rather slower for singles.8. Little evidence was found of a difference in rate of development of the alimentary tract between singles an d twins, although the log an d square root transformation suggested a possible difference in reticulo-rumen size in favour of twins, significant at the 5% level.

scholarly journals The brain as a fundamental axis in learning process

2019 ◽  
Vol 5 (4) ◽  
pp. 38-45
Author(s):  
Luis Raul Meza Mendoza ◽  
María Elena Moya Martinez ◽  
Angelica Maria Sabando Suarez
Keyword(s):  
Learning Process ◽  
The Body ◽  
Traditional Scheme ◽  
Teaching Learning ◽  
Relationship Of ◽  
The Relationship ◽  
The Brain ◽  
Learning Schemes ◽  
New Strategies ◽  
The Way

Since the beginning of humanity, an attempt has been made to explain the way in which man acquires knowledge, the way in which he assimilates, processes and executes it in order to develop the teaching-learning process that people need throughout of his life, which forces to change the learning schemes using new study methodologies, such as neuroscience, which is a discipline that studies the functioning of the brain, the relationship of neurons to the formation of synapses creating immediate responses which transmits to the body voluntarily and involuntarily, in addition to controlling the central and peripheral nervous system with their respective functions. It is necessary to change the traditional scheme and implement new strategies that allow the teacher to venture into neuroscience, in order to individually understand the different learning processes that students do. As some authors of neuroscience say, the brain performs processes of acquisition, storage and evocation of information, which form new knowledge schemes that generate changes in the attitude of the human being, for this reason teachers are responsible for taking advantage of what It is known about the multiple functions of the brain and be clear about the various ways of acquiring knowledge.

scholarly journals Salvação do corpo. Sujeito e negatividade a partir da filosofia de Byung-Chul Han

2020 ◽  
Vol 80 (316) ◽  
pp. 441
Author(s):  
Welder Lancieri Marchini ◽  
Renan Silva Carletti
Keyword(s):  
Social Relations ◽  
The Body ◽  
Contemporary Philosopher ◽  
Relationship Of ◽  
The Relationship

O presente artigo discute a noçao de corpo a partir do filósofo contemporâneo Byung-Chul Han e como ela pode oferecer caminhos para pensar a constituição do sujeito na atualidade. Partiremos da exposição dos conceitos de positividade e negatividade descritos em A Sociedade do Cansaco e em outras obras do autor. Em seguida, abordaremos a relação do corpo com a liberdade e pornografia. Por último, mostraremos como a inserção e o reconhecimento do sujeito em suas relações sociais pode sugerir um caminho possível para ultrapassar o excesso de positividade característico de nossa época. Abstract: This article discusses the notion of body from the contemporary philosopher Byung-Chul Han and how it can offer ways to think about the subject’s constitution today. We will start from the exposition of the concepts of positivity and negativity described in The Burnout Socieity and other works by the author. Next, we will address the relationship of the body to freedom and pornography. Finally, we will show how the subject’s insertion and recognition in his social relations can suggest a possible way to overcome the excess of positivity characteristic of our time.Keywords: Freedom; Pornography; Subject; Transparency.

scholarly journals Pola Asuh Orang Tua Terhadap Anak Berdasarkan Golongan Darah

2019 ◽  
Vol 4 (2) ◽  
pp. 114-129
Author(s):  
Hamam Burhanuddin
Keyword(s):  
Social Interaction ◽  
The Body ◽  
Blood Type ◽  
Relationship With God ◽  
3 Dimensional ◽  
Islamic Studies ◽  
Stage Of Development ◽  
Relationship Of ◽  
The Relationship ◽  
The Brain

The study in this paper are explain about the studies of medical (medicine) blood type have the same relationship to human character because the blood producing antibodies and antigens. It could determine a person helpless hold strong or weak body, has an allergy to something or not, in the blood also contains various nutrients (like protein) and also the oxygen being supplied to the brain and nerves and body affect performance someone will then be emanated from the attitude of the person and social interaction. As has been explained, but keep in mind, there is blood in the genes, the nature of which is carried in the body/genotif rightly so it is, but we can not ignore the fenotif/nature arising or visible, this trait appear due to interaction between genes and the environment, so even if the person is smart in the intelligentsia and emotional, but grew up in a bad environment is going to be a bad trait. The theory of personality based on blood type can be used as a reference in parenting children through an understanding of the fundamental principles of the application of personality accompanied by parenting. Furthermore, the taking of steps in the care tailored to the stage of development of the child, in the Qur'an explicitly did not mentioned paragraph that discusses about blood type, but in the Qur'an there are blood (ad-Dam), Islamic studies in the study of Children is seen as a mandate from God, forming 3-dimensional relationships, with parents as the central figure. First, her parents relationship with God that is backed by the presence of children. Second, the relationship of the child (which still need a lot of guidance) with God through his parents. Third, the relationship of the child with both parents under the tutelage and guidance of God.

scholarly journals Anthropometric indices obesity and cardiometabolic risk: is there a link?

2021 ◽  
Vol 20 (4) ◽  
pp. 2746
Author(s):  
A. V. Svarovskaya ◽  
A. A. Garganeeva
Keyword(s):  
Cardiometabolic Risk ◽  
Predictive Ability ◽  
Dietary Lipids ◽  
The Body ◽  
Prognostic Models ◽  
Metabolic Phenotype ◽  
Visceral Adiposity Index ◽  
Obesity Indices ◽  
Relationship Of ◽  
The Relationship

Adipose tissue is currently regarded as a key organ for excess dietary lipids, which determine whether the body will maintain normal homeostasis or whether inflammation and insulin resistance will develop. In recent years, there is more information about novel prognostic models — the visceral adiposity index and the lipid accumulation product. The aim of this review was to analyze the results of studies examining the relationship between various indices of obesity and cardiometabolic risk. We analyzed 105 literature sources, 53 of which were ruled out, becausethe processes of interest were not described in detail or included anassessment of the relationship of various obesity indices with metabolic parameters. The results obtained indicate the advisability of using novel obesity indices, which have a good predictive ability and are simple and convenient to use. It is necessary to use additional methods of anthropometric and clinical examination in order to assess the metabolic phenotype of obesity, which will make it possible to stratify patients by the level of cardiometabolic risk.

Many-legged maneuverability: dynamics of turning in hexapods

1999 ◽  
Vol 202 (12) ◽  
pp. 1603-1623 ◽  
Author(s):  
D.L. Jindrich ◽  
R.J. Full
Keyword(s):  
Horizontal Plane ◽  
Center Of Mass ◽  
Vertical Plane ◽  
Force Production ◽  
The Body ◽  
Mean Velocity ◽  
Blaberus Discoidalis ◽  
Body Design ◽  
Reaction Forces ◽  
Straight Ahead

Remarkable similarities in the vertical plane of forward motion exist among diverse legged runners. The effect of differences in posture may be reflected instead in maneuverability occurring in the horizontal plane. The maneuver we selected was turning during rapid running by the cockroach Blaberus discoidalis, a sprawled-postured arthropod. Executing a turn successfully involves at least two requirements. The animal's mean heading (the direction of the mean velocity vector of the center of mass) must be deflected, and the animal's body must rotate to keep the body axis aligned with the heading. We used two-dimensional kinematics to estimate net forces and rotational torques, and a photoelastic technique to estimate single-leg ground-reaction forces during turning. Stride frequencies and duty factors did not differ among legs during turning. The inside legs ended their steps closer to the body than during straight-ahead running, suggesting that they contributed to turning the body. However, the inside legs did not contribute forces or torques to turning the body, but actively pushed against the turn. Legs farther from the center of rotation on the outside of the turn contributed the majority of force and torque impulse which caused the body to turn. The dynamics of turning could not be predicted from kinematic measurements alone. To interpret the single-leg forces observed during turning, we have developed a general model that relates leg force production and leg position to turning performance. The model predicts that all legs could turn the body. Front legs can contribute most effectively to turning by producing forces nearly perpendicular to the heading, whereas middle and hind legs must produce additional force parallel to the heading. The force production necessary to turn required only minor alterations in the force hexapods generate during dynamically stable, straight-ahead locomotion. A consideration of maneuverability in the horizontal plane revealed that a sprawled-postured, hexapodal body design may provide exceptional performance with simplified control.

Sign in / Sign up

Export Citation Format

Share Document