Stories of a Certain Gravity

2021 ◽  
pp. 11-35
Author(s):  
Gianfranco Bertone
Keyword(s):  
General Relativity ◽  
Short Stories ◽  
Amniotic Fluid ◽  
Gravitational Waves ◽  
Human Condition ◽  
Universal Gravitation ◽  
History Of ◽  
Gravitational Pull ◽  
The Moment ◽  
Fundamental Forces

Before delving into gravitational waves, I illustrate, with nine short stories, the fascinating history of gravity, shedding light on the actual lives and contributions of leading scientists and astronomers, from Tycho Brahe’s adventurous life and grotesque death, to Johannes Kepler’s intuitions and passionate prose. And from Newton’s resolution to cut the Gordian knot of the origin of gravity with his theory of universal gravitation, to Einstein’s heroic struggle to derive the equations of general relativity. Gravity is the weakest of the fundamental forces in nature, yet it subjugates us from the moment we are born. After nine months floating in the womb, suspended in the enveloping heat of the amniotic fluid, we are suddenly confronted with the gravitational pull of our planet. Gravity thus manifests itself as weight, and forces our helpless bodies to the ground, establishing a universal and defining aspect of the human condition.

Evaluation of concomitant gynecological pathology in group of patients of reproductive age with tumors and tumor formations

2020 ◽  
pp. 10-14
Author(s):  
N. V. Spiridonova ◽  
A. A. Demura ◽  
V. Yu. Schukin
Keyword(s):  
Diagnostic Errors ◽  
Ovarian Tumors ◽  
Reproductive Age ◽  
Women Of Reproductive Age ◽  
Predisposing Factor ◽  
Ovarian Tumours ◽  
Preoperative Diagnostic ◽  
Neoplastic Process ◽  
History Of ◽  
The Moment

According to modern literature, the frequency of preoperative diagnostic errors for tumour-like formations is 30.9–45.6%, for malignant ovarian tumors is 25.0–51.0%. The complexity of this situation is asymptomatic tumor in the ovaries and failure to identify a neoplastic process, which is especially important for young women, as well as ease the transition of tumors from one category to another (evolution of the tumor) and the source of the aggressive behavior of the tumor. The purpose of our study was to evaluate the history of concomitant gynecological pathology in a group of patients of reproductive age with ovarian tumors and tumoroid formations, as a predisposing factor for the development of neoplastic process in the ovaries. In our work, we collected and processed complaints and data of obstetric and gynecological anamnesis of 168 patients of reproductive age (18–40 years), operated on the basis of the Department of oncogynecology for tumors and ovarian tumours in the Samara Regional Clinical Oncology Dispensary from 2012 to 2015. We can conclude that since the prognosis of neoplastic process in the ovaries is generally good with timely detection and this disease occurs mainly in women of reproductive age, doctors need to know that when assessing the parity and the presence of gynecological pathology at the moment or in anamnesis, it is not possible to identify alarming risk factors for the development of cancer in the ovaries.

The Goal of the Moment (Summary of the Lecture Delivered by Ivan Ilyin in May 1917)

2019 ◽  
Vol 60 ◽  
pp. 424-428
Author(s):  
Alexandra I. Vakulinskaya
Keyword(s):  
The State ◽  
October Revolution ◽  
Legal Consciousness ◽  
New Order ◽  
History Of ◽  
The Moment

This publication is devoted to one of the episodes of I. A. Ilyin’s activity in the period “between two revolutions”. Before the October revolution, the young philosopher was inspired by the events of February 1917 and devoted a lot of time to speeches and publications on the possibility of building a new order in the state. The published archive text indicates that the development of Ilyin’s doctrine “on legal consciousness” falls precisely at this tragic moment in the history of Russia.

Five Centuries of Spanish Literature: From the Cid Through the Golden Age. An Anthology Selected and Edited for Students of Spanish by Linton Lomas Barrett. New York — Toronto, Dodd, Mead & Company, 1962; An Outline History of Spanish American Literature, Third Edition, Englekirk, Leonard, Reid and Crow. New York, Appleton-Century- Crofts, 1965; Lecturas Intermedias: Prosas Y Poesias, Anderson, Davison, Smith. New York, Harper & Row, 1965; Los Duendes Deterministas Y Otors Cuentos, Enrique Anderson Imbert, Edited by John Y. Falconieri. Englewood Cliffs, New Jersey, Prentice-Hall, 1965; Hoy Es Fiesta, Antonio Buero Vallejo. Edited by J. E. Lyon, With Vocabulary by K. S. B. Croft. London, George G. Harrap (Toronto, Clarke, Irwin), 1964; Voces Españolas de Hoy, Edited by Duran and Alvarez. New York, Harcourt, Brace & World (Toronto, Longmans Canada), 1965; Selecciones (Textes Espagnols À L’usage Des Canadiens-Français; Spanish Readings for English-Canadian Students), S. Fielden-Briggs. Montreal, Beauchemin, 1965; Cuentos Americanos de Nuestros Dias: Ten Spanish American Short Stories, Edited by Jean Franco. London, Harrap (Toronto, Clarke, Irwin), 1965; La España Moderna Vista Y Sentida Por Los Españoles, Edited by Thomas R. Hart and Oarlos Rojas. Englewood Cliffs, New Jersey, Prentice-Hall, 1966; Don Brazazo de La Carretera: An Elementary Spanish Reader, Richard Musman. London, G. Bell and Sons (Toronto, Clarke, Irwin), 1964; Ortega Y Gasset: Sus Mejores Paginas, Edited by Manuel Durán. Englewood Cliffs, New Jersey, Prentice-Hall, 1966; de Cela a Castillo-Navarro: Veinte Años de Prosa Española Contemporanea, Edited by Carlos Rojas. Englewood Cliffs, New Jersey, Prentice-Hall, 1965; Palabras Modernas, J. R. Jump. London, George G. Harrap (Toronto, Clarke, Irwin), 1965;Five Centuries of Spanish Literature : From the Cid Through the Golden Age. An Anthology Selected and Edited for Students of Spanish by Linton Lomas Barrett. New York — Toronto, Dodd, Mead & Company, 1962. Pp. x, 352.An Outline History of Spanish American Literature, Third Edition, Englekirk, Leonard, Reid and Crow. New York, Appleton-Century- Crofts, 1965. Pp. xiii, 252. $2.95.Lecturas Intermedias: Prosas y Poesias, Anderson, Davison, Smith. New York, Harper & Row, 1965. Pp. x, 333. (Plus Instructor’s Manual, 75 pages.)Los Duendes Deterministas y Otors Cuentos, Enrique Anderson Imbert, Edited by John Y. Falconieri. Englewood Cliffs, New Jersey, Prentice-Hall, 1965, Pp. ix, 192. $3.75.Hoy Es Fiesta, Antonio Buero Vallejo. Edited by J. E. Lyon, with vocabulary by K. S. B. Croft. London, George G. Harrap (Toronto, Clarke, Irwin), 1964, Pp. 192. $2.25.Voces Españolas de Hoy, edited by Duran and Alvarez. New York, Harcourt, Brace & World (Toronto, Longmans Canada), 1965. Pp. vili, 216. $3.25.Selecciones (textes espagnols à l’usage des canadiens-français; Spanish readings for English-Canadian Students), S. Fielden-Briggs. Montreal, Beauchemin, 1965. Pp. 149.Cuentos Americanos de Nuestros Dias: Ten Spanish American Short Stories, edited by Jean Franco. London, Harrap (Toronto, Clarke, Irwin), 1965. Pp. 179. $2.55.La España Moderna Vista y Sentida por Los Españoles, edited by Thomas R. Hart and Oarlos Rojas. Englewood Cliffs, New Jersey, Prentice-Hall, 1966. Pp. xiii, 341. $5.95.Don Brazazo de la Carretera: An Elementary Spanish Reader, Richard Musman. London, G. Bell and Sons (Toronto, Clarke, Irwin), 1964. Pp. 96. $0.95.Ortega y Gasset: SUS Mejores Paginas, edited by Manuel Durán. Englewood Cliffs, New Jersey, Prentice-Hall, 1966. Pp. vi, 250. $3.95.De Cela a Castillo-Navarro: Veinte Años de Prosa Española Contemporanea, edited by Carlos Rojas. Englewood Cliffs, New Jersey, Prentice-Hall, 1965. Pp. ix, 213. $2.95.Palabras Modernas, J. R. Jump. London, George G. Harrap (Toronto, Clarke, Irwin), 1965. Pp. 85. $1.10.

1966 ◽  
Vol 22 (4) ◽  
pp. 63-66
Author(s):  
J. H. P.
Keyword(s):  
New York ◽  
Short Stories ◽  
New Jersey ◽  
American Literature ◽  
Spanish Literature ◽  
Spanish American ◽  
Antonio Buero Vallejo ◽  
History Of ◽  
Carlos Rojas ◽  
English Canadian

Geometry and Quantum Dynamics

2017 ◽  
Author(s):  
Laurent Baulieu ◽  
John Iliopoulos ◽  
Roland Sénéor
Keyword(s):  
General Relativity ◽  
Quantum Dynamics ◽  
Gauge Theories ◽  
Brst Symmetry ◽  
Abelian Gauge ◽  
Yang Mills ◽  
History Of ◽  
Brst Invariance

A geometrical derivation of Abelian and non- Abelian gauge theories. The Faddeev–Popov quantisation. BRST invariance and ghost fields. General discussion of BRST symmetry. Application to Yang–Mills theories and general relativity. A brief history of gauge theories.

Atonement

2018 ◽  
Author(s):  
Eleonore Stump
Keyword(s):  
Moral Psychology ◽  
Negative Emotions ◽  
Human Condition ◽  
Human Beings ◽  
Central Question ◽  
Mind Reading ◽  
Shared Attention ◽  
History Of Interpretation ◽  
History Of ◽  
Eleonore Stump

The doctrine that Christ has saved human beings from their sins, with all that that salvation entails, is the distinctive doctrine of Christianity. Over the course of many centuries of reflection on the doctrine, highly diverse understandings have been proposed, many of which have also raised strong positive or negative emotions in those who have reflected on them. In this book, in the context of this history of interpretation, Eleonore Stump considers this theological doctrine with philosophical care. The central question of the book is the nature of the atonement. That is, what is it that is accomplished by the passion and death of Christ (or the life, passion, and death, of Christ)? Whatever exactly it is, it is supposed to include a solution to the problem of the post-Fall human condition, with its guilt and shame. This volume canvasses major interpretations of the doctrine of the atonement that attempt to explain this solution, and it argues that all of them have serious shortcomings. In their place, Stump employs an extension of a Thomistic account of love and forgiveness to argue for a relatively novel interpretation of the doctrine, which she calls ‘the Marian interpretation.’ Stump argues that this Marian interpretation makes better sense of the doctrine of the atonement than other interpretations do, including Anselm’s well-known theory. In the process of constructing the Marian interpretation, she also discusses love, union, guilt, shame, forgiveness, retribution, punishment, shared attention, mind-reading, empathy, and various other issues in moral psychology and ethics.

Beyond the Schwarzschild Metric

2018 ◽  
Author(s):  
David M. Wittman
Keyword(s):  
Black Holes ◽  
General Relativity ◽  
Gravitational Waves ◽  
Test Particle ◽  
Direct Detection ◽  
Relativistic Effects ◽  
Big Bang ◽  
Clusters Of Galaxies ◽  
General Relativistic ◽  
The Universe

General relativity explains much more than the spacetime around static spherical masses.We briefly assess general relativity in the larger context of physical theories, then explore various general relativistic effects that have no Newtonian analog. First, source massmotion gives rise to gravitomagnetic effects on test particles.These effects also depend on the velocity of the test particle, which has substantial implications for orbits around black holes to be further explored in Chapter 20. Second, any changes in the sourcemass ripple outward as gravitational waves, and we tell the century‐long story from the prediction of gravitational waves to their first direct detection in 2015. Third, the deflection of light by galaxies and clusters of galaxies allows us to map the amount and distribution of mass in the universe in astonishing detail. Finally, general relativity enables modeling the universe as a whole, and we explore the resulting Big Bang cosmology.

scholarly journals A Narrative Review of the History of Skin Grafting in Burn Care

Medicina ◽  
2021 ◽  
Vol 57 (4) ◽  
pp. 380
Author(s):  
Deepak K. Ozhathil ◽  
Michael W. Tay ◽  
Steven E. Wolf ◽  
Ludwik K. Branski
Keyword(s):  
Donor Site ◽  
Subsequent Development ◽  
Skin Grafting ◽  
Human Condition ◽  
Surgical Instruments ◽  
Wound Management ◽  
Burn Wound ◽  
Medical Progress ◽  
Burn Care ◽  
History Of

Thermal injuries have been a phenomenon intertwined with the human condition since the dawn of our species. Autologous skin translocation, also known as skin grafting, has played an important role in burn wound management and has a rich history of its own. In fact, some of the oldest known medical texts describe ancient methods of skin translocation. In this article, we examine how skin grafting has evolved from its origins of necessity in the ancient world to the well-calibrated tool utilized in modern medicine. The popularity of skin grafting has ebbed and flowed multiple times throughout history, often suppressed for cultural, religious, pseudo-scientific, or anecdotal reasons. It was not until the 1800s, that skin grafting was widely accepted as a safe and effective treatment for wound management, and shortly thereafter for burn injuries. In the nineteenth and twentieth centuries skin grafting advanced considerably, accelerated by exponential medical progress and the occurrence of man-made disasters and global warfare. The introduction of surgical instruments specifically designed for skin grafting gave surgeons more control over the depth and consistency of harvested tissues, vastly improving outcomes. The invention of powered surgical instruments, such as the electric dermatome, reduced technical barriers for many surgeons, allowing the practice of skin grafting to be extended ubiquitously from a small group of technically gifted reconstructive surgeons to nearly all interested sub-specialists. The subsequent development of biologic and synthetic skin substitutes have been spurred onward by the clinical challenges unique to burn care: recurrent graft failure, microbial wound colonization, and limited donor site availability. These improvements have laid the framework for more advanced forms of tissue engineering including micrografts, cultured skin grafts, aerosolized skin cell application, and stem-cell impregnated dermal matrices. In this article, we will explore the convoluted journey that modern skin grafting has taken and potential future directions the procedure may yet go.

scholarly journals Decolonization and the aesthetics of disorder: Naipaul, Evaristo, Boland

2021 ◽  
pp. 002198942199605
Author(s):  
Matthew Whittle
Keyword(s):  
European History ◽  
Resistance Movements ◽  
Eavan Boland ◽  
History Of ◽  
Paul Gilroy ◽  
Orderly Transition ◽  
The Moment ◽  
Bear Witness ◽  
Formal Features

Decolonization is presented in dominant accounts as an orderly transition and not the culmination of anticolonial resistance movements. This in turn contributes to what Paul Gilroy terms an endemic “post-imperial melancholia” across contemporary European nations and the removal of empire and its demise from understandings of European history. Drawing on Bill Schwarz’s reconceptualization of a Fanonian commitment to disorder, this article focuses on Britain’s history of colonialism and post-imperial immigration and argues for the mapping of a disorderly aesthetics in works by V. S. Naipaul, Bernardine Evaristo, and Eavan Boland. The three formal features of non-linearity, polyvocality, and environmental imagery enable these writers to bear witness to the complex histories of empire, transatlantic slavery, decolonization, and immigration from the colonial “margins”. These “aesthetics of disorder” counter a dominant narrative of decolonial order and challenge conceptions of British exceptionalism that were reinforced at the moment of imperial decline.

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