Results 1 to 10 of about 1,436,799 (320)

The Schr\"odinger-Newton equations beyond Newton [PDF]

open access: yesGeneral Relativity and Gravitation, 2014
The scope of this paper is twofold. First, we derive rigorously a low-velocity and Galilei-covariant limit of the gravitoelectromagnetic (GEM) equations.
Manfredi, Giovanni
core   +3 more sources

The Radius of PSR J0740+6620 from NICER and XMM-Newton Data [PDF]

open access: yesAstrophysical Journal Letters, 2021
PSR J0740+6620 has a gravitational mass of 2.08 ± 0.07 M ⊙, which is the highest reliably determined mass of any neutron star. As a result, a measurement of its radius will provide unique insight into the properties of neutron star core matter at high ...
M. Miller   +27 more
semanticscholar   +1 more source

A NICER View of the Massive Pulsar PSR J0740+6620 Informed by Radio Timing and XMM-Newton Spectroscopy [PDF]

open access: yesAstrophysical Journal Letters, 2021
We report on Bayesian estimation of the radius, mass, and hot surface regions of the massive millisecond pulsar PSR J0740+6620, conditional on pulse-profile modeling of Neutron Star Interior Composition Explorer X-ray Timing Instrument event data.
T. E. Riley   +29 more
semanticscholar   +1 more source

Political science framework based on quantum approach [PDF]

open access: yesFaṣlnāmah-i Pizhūhish/hā-yi Rāhburdī-i Siyāsat, 2022
Research issues in the political sciences are becoming increasingly complex. The contemporary era, which is inspired by postmodernism, integration and complexity of knowledge, has created special conditions in research methods, issues and approaches. The
Mohammad Hadi Raji   +1 more
doaj   +1 more source

The Vision of an Axe. Dostoevsky and Astronautics [PDF]

open access: yesДостоевский и мировая культура: Филологический журнал, 2021
This essay explores the scientific and literary origins of the image of an axe thrown into outer space to orbit the earth, as it appears in the chapter “The Devil. The Vision of Ivan Fyodorovich” in Dostoevsky’s The Brothers Karamazov.
Ilya Yu. Vinitsky
doaj   +1 more source

Can we know what Newton's scientific method is? [PDF]

open access: yesروش شناسی علوم انسانی, 2020
I have tried to retrieve Newton’s scientific method. To do so, I raise two principal questions: 1. What is Newton’s evolving scientific method that he devised in The Principia and Opticks during a period of fifty years? 2.
saeid zibakalam
doaj   +1 more source

INVESTIGATION ON TRADE OF ÇORUM WITH SURROUNDING PROVINCES BY GRAVITY MODEL

open access: yesHitit Sosyal Bilimler Dergisi, 2021
In this study, the trade relationship of Çorum province with the surrounding provinces was examined by using Newton's Gravity Model. Newton's Gravity Model is used to model the gravitational forces of planets and their physical states in space.
Muhammed Hasan Yücel
doaj   +1 more source

Relaciones entre historia de las matemáticas y formación de ingenieros

open access: yesVisión Electrónica, 2021
Integrar aspectos históricos y epistemológicos de las matemáticas de Newton y de Leibniz en lo que actualmente conocemos como Teorema Fundamental del Cálculo (TFC), permite mejorar la accesibilidad (entendiéndola como “una herramienta para la preparación
Weimar Muñoz-Villate
doaj   +1 more source

The Experimental Philosophy or Francis Bacon’s Elenchus [PDF]

open access: yesJournal of Philosophical Investigations, 2023
Critical rationalism faces difficulty in Karl Popper’s Socratic formulation: “I may be wrong, and you may be right, and by an effort, we may find the truth.” But the Socratic elenchus, using refutations, can only give us negative knowledge of general ...
Jagdish Hattiangadi
doaj   +1 more source

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