Academic literature on the topic 'Universe through observations'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Universe through observations.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Universe through observations"

1

Yu, Ziguan. "The Flatness of The Universe Through Theory and Observations." Highlights in Science, Engineering and Technology 112 (August 20, 2024): 314–18. http://dx.doi.org/10.54097/b816cb51.

Full text
Abstract:
Understanding the universe's shape is crucial for cosmology. Whether the shape is flat not only influences many other studies based on the assumption that the universe is flat but also helps people to build a better model to explain the evolution of the universe. This paper introduces several available methods to determine its flatness, focusing on the basic ideas and related theories. The paper mainly introduces the method of using the CMB's angular power spectrum to determine the universe's shape and gives the conclusion of a flat universe. Utilizing the lambda-CDM model, which suggests a ne
APA, Harvard, Vancouver, ISO, and other styles
2

Bahcall, Neta A. "Dark matter universe." Proceedings of the National Academy of Sciences 112, no. 40 (2015): 12243–45. http://dx.doi.org/10.1073/pnas.1516944112.

Full text
Abstract:
Most of the mass in the universe is in the form of dark matter—a new type of nonbaryonic particle not yet detected in the laboratory or in other detection experiments. The evidence for the existence of dark matter through its gravitational impact is clear in astronomical observations—from the early observations of the large motions of galaxies in clusters and the motions of stars and gas in galaxies, to observations of the large-scale structure in the universe, gravitational lensing, and the cosmic microwave background. The extensive data consistently show the dominance of dark matter and quan
APA, Harvard, Vancouver, ISO, and other styles
3

Thompson, Rodger I. "Observational Determinations of the Proton to Electron Mass Ratio in the Early Universe." Proceedings of the International Astronomical Union 5, H15 (2009): 319. http://dx.doi.org/10.1017/s1743921310009567.

Full text
Abstract:
AbstractThe values of the fundamental physical constants determine the nature of our universe from the height of mountains on earth to the evolution of the universe over its history. One of these constants is μ = MP/Me the ratio of the proton to electron mass. Astronomical observations provide a determination of this ratio in the early universe through observations of molecular absorption and emission lines in distant objects. Observations of molecular hydrogen in distant damped Lyman Alpha clouds provide a measurement of μ at a time when the universe was only 20% of its present age. To date t
APA, Harvard, Vancouver, ISO, and other styles
4

Shao, Xiaoyun, Zhoujian Cao, Xilong Fan, and Shichao Wu. "Probing the Large-scale Structure of the Universe Through Gravitational Wave Observations." Research in Astronomy and Astrophysics 22, no. 1 (2022): 015006. http://dx.doi.org/10.1088/1674-4527/ac32b4.

Full text
Abstract:
Abstract The improvements in the sensitivity of the gravitational wave (GW) network enable the detection of several large redshift GW sources by third-generation GW detectors. These advancements provide an independent method to probe the large-scale structure of the universe by using the clustering of the binary black holes (BBHs). The black hole catalogs are complementary to the galaxy catalogs because of large redshifts of GW events, which may imply that BBHs are a better choice than galaxies to probe the large-scale structure of the universe and cosmic evolution over a large redshift range.
APA, Harvard, Vancouver, ISO, and other styles
5

Schmidt, Brian P. "Nobel Lecture: Accelerating expansion of the Universe through observations of distant supernovae." Reviews of Modern Physics 84, no. 3 (2012): 1151–63. http://dx.doi.org/10.1103/revmodphys.84.1151.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Kafatos, Menas. "Knowledge Limits in Cosmology." Symposium - International Astronomical Union 168 (1996): 431–38. http://dx.doi.org/10.1017/s0074180900110307.

Full text
Abstract:
In cosmology one faces the observational challenge that knowledge about distant regions of the universe is dependent on assumptions one makes about these regions which are themselves coupled to the observations. Within the framework of the Friedmann-Robertson-Walker big bang models the universe becomes opaque to its own radiation at z ≈ 1,000 and the earlier, and more distant, regions of the universe are not directly accessible through observations. Other challenges exist such as possible merging of extended distant sources and confusion of spectra from distant galaxies. One, therefore, encoun
APA, Harvard, Vancouver, ISO, and other styles
7

Baghram, Shant, Saeed Tavasoli, Farhang Habibi, Roya Mohayaee, and Joseph Silk. "Unraveling the nature of gravity through our clumpy universe." International Journal of Modern Physics D 23, no. 12 (2014): 1442025. http://dx.doi.org/10.1142/s0218271814420255.

Full text
Abstract:
We propose a new probe to test the nature of gravity at various redshifts through large-scale cosmological observations. We use our void catalog, extracted from the Sloan Digital Sky Survey (SDSS, DR10), to trace the distribution of matter along the lines of sight to SNe Ia that are selected from the Union II catalog. We study the relation between SNe Ia luminosities and convergence and also the peculiar velocities of the sources. We show that the effects, on SNe Ia luminosities, of convergence and of peculiar velocities predicted by the theory of general relativity and theories of modified gr
APA, Harvard, Vancouver, ISO, and other styles
8

Pandey, A. "STELLAR EVOLUTION AND THEIR ASTRONOMICAL OBSERVATIONS." Revista Mexicana de Astronomía y Astrofísica Serie de Conferencias 53 (September 1, 2021): 147–50. http://dx.doi.org/10.22201/ia.14052059p.2021.53.29.

Full text
Abstract:
There is a hugh number of stars (~ few hundred billions) of different ages, sizes and masses in our galaxy, the Milky Way, and billions of other galaxies in the Universe. It was extremely challenging for astronomers to classify them into different groups to understand their properties precisely. In general, stars remains in the main sequence phases in the HR diagram for the largest fraction of its life time because it maintains hydro-static equilibrium during this phase. Stars of diverse mass range pass through different evolutionary phases. Some of these end their lives as catastrophic explos
APA, Harvard, Vancouver, ISO, and other styles
9

Trinchieri, Ginevra. "XMM-Newton observations of elliptical galaxies in the local universe." Proceedings of the International Astronomical Union 5, H15 (2009): 273. http://dx.doi.org/10.1017/s1743921310009178.

Full text
Abstract:
XMM-Newton is well suited to the study of the X-ray properties of early-type galaxies: the wide energy band allows a characterization of the different components of the X-ray emission in galaxies, separating the gas from the compact source component through their spectral characteristics, and identifying low-luminosity absorbed AGNs; the large field of view allows a proper understanding of the large scale emission, and the separation between the galaxy and the surrounding group. Nonetheless, in spite of the much improved understanding of the X-ray characteristics of this class of sources, much
APA, Harvard, Vancouver, ISO, and other styles
10

Kinney, Sean. "Calculating All Dark Energy and Dark Matter Effects through Dynamic Gravity Theory." European Journal of Physical Sciences 6, no. 2 (2023): 1–10. http://dx.doi.org/10.47672/ejps.1503.

Full text
Abstract:
Newton’s Universal Law of Gravitation was augmented by Einstein’s General Relativity to include factors such as time dilation from speed and gravity field strength. But this augmentation has proven to be incomplete as the math fails in almost all settings outside our solar system hence the need for Dark Energy and Dark Matter to resolve the math. Dynamic Gravity has new math that augments GR in much the same way GR augments Newton’s Law, and this math has the potential to completely explain the motions of all celestial bodies throughout the entire universe with zero need to correct the math wi
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Universe through observations"

1

Chippendale, Aaron Paul. "Detecting cosmological reionization on large scales through the 21 cm HI line." Thesis, The University of Sydney, 2009. http://hdl.handle.net/2123/6256.

Full text
Abstract:
This thesis presents the development of new techniques for measuring the mean redshifted 21 cm line of neutral hydrogen during reionization. This is called the 21 cm cosmological reionization monopole. Successful observations could identify the nature of the first stars and test theories of galaxy and large-scale structure formation. The goal was to specify, construct and calibrate a portable radio telescope to measure the 21 cm monopole in the frequency range 114 MHz to 228 MHz, which corresponds to the redshift range 11.5 > z > 5.2. The chosen approach combined a frequency independent anten
APA, Harvard, Vancouver, ISO, and other styles
2

Chippendale, Aaron Paul. "Detecting cosmological reionization on large scales through the 21 cm HI line." University of Sydney, 2009. http://hdl.handle.net/2123/6256.

Full text
Abstract:
Doctor of Philosophy (PhD)<br>This thesis presents the development of new techniques for measuring the mean redshifted 21 cm line of neutral hydrogen during reionization. This is called the 21 cm cosmological reionization monopole. Successful observations could identify the nature of the first stars and test theories of galaxy and large-scale structure formation. The goal was to specify, construct and calibrate a portable radio telescope to measure the 21 cm monopole in the frequency range 114 MHz to 228 MHz, which corresponds to the redshift range 11.5 > z > 5.2. The chosen approach combined
APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "Universe through observations"

1

library, Wiley online, and Astronomische Gesellschaft (Germany) Meeting, eds. Deciphering the universe through spectroscopy. Wiley-VCH, 2010.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Skiperskih, Aleksandr. "Closed universes" of Resistance: searches in the space of Russian culture. INFRA-M Academic Publishing LLC., 2022. http://dx.doi.org/10.12737/1818427.

Full text
Abstract:
The monograph represents the author's long-term observations on the life of chronotopes of Russian culture. From the author's point of view, chronotopes are initially present in a special field of opposites, complementary values, which only dramatizes the self-identification of the subject of resistance in the fascinating and dark worlds of "closed universes" opening before him.&#x0D; The life of culture, as well as the life of its individual carrier, who creates the text of resistance, seems to be a kind of journey through certain stations - chronotopes.&#x0D; He can find his reader among tho
APA, Harvard, Vancouver, ISO, and other styles
3

Berlepsch, Regina von. Deciphering the Universe Through Spectroscopy. Wiley & Sons, Incorporated, John, 2011.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Jones, Antonius. Universal Truth through Simple Observation. Lulu Press, Inc., 2008.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Kragh, Helge, and Malcolm S. Longair, eds. The Oxford Handbook of the History of Modern Cosmology. Oxford University Press, 2019. http://dx.doi.org/10.1093/oxfordhb/9780198817666.001.0001.

Full text
Abstract:
Although some of the observational and conceptual roots of modern cosmology can be traced back to the nineteenth century, it was only in the twentieth century that the study of the universe as a whole emerged as a genuine physical science. The development through the twentieth and now well into the twenty-first century has been far from smooth, but in spite of a number of false trails it has been tremendously fruitful and surprisingly successful scientifically. The volume presents a comprehensive overview of the development of cosmology from about 1860 to the most recent discoveries. It descri
APA, Harvard, Vancouver, ISO, and other styles
6

Taiz, Lincoln, and Lee Taiz. Plant Sex from Empedocles to Theophrastus. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190490263.003.0008.

Full text
Abstract:
“Plant Sex from Empedocles to Theophrastus” investigates Greek philosophies concerning plants. The Pythagoreans and pre-Socratic philosophers taught that the universe was governed by a divine order that could be understood through mathematical or physical laws, and that “natural laws” were discoverable by observation and logic. This tradition eventually gave rise to modern science. Unlike Plato, who viewed the physical world as “shadows,” knowable only through mathematics and abstract philosophy, Aristotle and Theophrastus regarded everything in the natural world that could be perceived by the
APA, Harvard, Vancouver, ISO, and other styles
7

Mashhoon, Bahram. Nonlocal Gravity. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198803805.001.0001.

Full text
Abstract:
A postulate of locality permeates through the special and general theories of relativity. First, Lorentz invariance is extended in a pointwise manner to actual, namely, accelerated observers in Minkowski spacetime. This hypothesis of locality is then employed crucially in Einstein’s local principle of equivalence to render observers pointwise inertial in a gravitational field. Field measurements are intrinsically nonlocal, however. To go beyond the locality postulate in Minkowski spacetime, the past history of the accelerated observer must be taken into account in accordance with the Bohr-Rose
APA, Harvard, Vancouver, ISO, and other styles
8

Iliopoulos, John. A Brief History of Cosmology. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198805175.003.0002.

Full text
Abstract:
We present the evolution of our ideas concerning the history of the Cosmos. They are based on Einstein’s theory of General Relativity in which E.P. Hubble and G. Lemaître brought two fundamental new concepts: the expansion of the Universe and the model of the Big Bang. They form the basic elements of the modern theory of Cosmology. We present very briefly the observational evidence which corroborates this picture based on a vast amount of data, among which the most recent ones come from the Planck mission with a detailed measurement of the cosmic microwave background (CMB) radiation. We show t
APA, Harvard, Vancouver, ISO, and other styles
9

Smith, Matthew Wilson. The Emptying of Gesture. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190644086.003.0002.

Full text
Abstract:
How can one read another’s true thoughts and feelings? Many philosophical texts and acting manuals reached the same answer to this age-old question: we can read another’s hidden mental states through careful observation of gesture—especially unconscious gesture. Gesture, in this account, offered a promise that words could not, the promise of a natural, universal language and a royal road to the psyche. This chapter tells a story of this promise’s disintegration and the gradual replacement of gestures by nerves as reliable signs of mental states. The chapter’s first part traces connections betw
APA, Harvard, Vancouver, ISO, and other styles
10

Mendelle, Noe. Sculpting the Spirits. University of Edinburgh, 2024. http://dx.doi.org/10.2218/ed.9781836450610.

Full text
Abstract:
Mendelle and Luis Correia (co-director &amp; co-producer) were the first filmmakers to visit the Bijagós archipelago and, after spending time with the village chiefs, were invited by them to film their daily life, beliefs, and rituals. Mendelle and her team lived with them for extended periods, twice yearly for 5 years. The elders, alert to radical changes coming their way and conscious that their culture is only orally transmitted, saw a unique opportunity to document their way of life and preserve it for future generations. Their collaboration was essential, both in terms of access and under
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Universe through observations"

1

Gallagher, Sarah C., and Chris Smeenk. "What’s in a Survey? Simulation-Induced Selection Effects in Astronomy." In Synthese Library. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-26618-8_12.

Full text
Abstract:
AbstractObservational astronomy is plagued with selection effects that must be taken into account when interpreting data from astronomical surveys. Because of the physical limitations of observing time and instrument sensitivity, datasets are rarely complete. However, determining specifically what is missing from any sample is not always straightforward. For example, there are always more faint objects (such as galaxies) than bright ones in any brightness-limited sample, but faint objects may not be of the same kind as bright ones. Assuming they are can lead to mischaracterizing the population
APA, Harvard, Vancouver, ISO, and other styles
2

Elder, Jamee. "Theory Testing in Gravitational-Wave Astrophysics." In Synthese Library. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-26618-8_4.

Full text
Abstract:
AbstractThe LIGO-Virgo Collaboration achieved the first ‘direct detection’ of gravitational waves in 2015, opening a new “window” for observing the universe. Since this first detection (‘GW150914’), dozens of detections have followed, mostly produced by binary black hole mergers. However, the theory-ladenness of the LIGO-Virgo methods for observing these events leads to a potentially-vicious circularity, where general relativistic assumptions may serve to mask phenomena that are inconsistent with general relativity (GR). Under such circumstances, the fact that GR can ‘save the phenomena’ may b
APA, Harvard, Vancouver, ISO, and other styles
3

Hofkens, Tara, Robert C. Pianta, and Bridget Hamre. "Teacher-Student Interactions: Theory, Measurement, and Evidence for Universal Properties That Support Students’ Learning Across Countries and Cultures." In Effective Teaching Around the World. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-31678-4_18.

Full text
Abstract:
AbstractAcross the globe, strategies and investments to strengthen teacher effectiveness are increasingly a core component of countries’ efforts to improve educational outcomes for their citizens and, for many, to elevate standards of living. In this chapter, we present evidence demonstrating the role of teacher-student interactions in teachers’ ability to positively influence student development and learning across countries and cultures. We conceptualize teacher-student interactions as proximal processes that drive students’ engagement and learning. Evidence clearly demonstrates that interac
APA, Harvard, Vancouver, ISO, and other styles
4

Abushattal, A. A., Ala’a A. A. Azzam, Mashhoor A. Al-Wardat, et al. "Advancements in Astronomy and Space Sciences in Jordan: Contributions from Experts and Astrophysical Institutions." In Springer Proceedings in Physics. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-96-3276-3_10.

Full text
Abstract:
Abstract Humanity has always been fascinated by astronomy and space sciences. Two distinct groups of Jordanians show interest in this subject: specialists and amateurs. Experts, often academicians and researchers, immerse themselves in the scientific mysteries of the universe, contributing to global knowledge. Their tools, telescopes, and methodologies are advanced, and they often collaborate with international institutions and agencies. Meanwhile, amateurs contribute significantly to popularising astronomy by driving passion and curiosity. Sometimes they make significant discoveries while sta
APA, Harvard, Vancouver, ISO, and other styles
5

Aebi, Marcelo F. "A Narrative Review of the Debate on the So-Called International Crime Drop." In SpringerBriefs in Criminology. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-72387-2_2.

Full text
Abstract:
Abstract This chapter provides a comprehensive review of the scholarly discourse surrounding the concept of an "international crime drop" during the 1990s and 2000s, examining four distinct interpretative narratives that have shaped our understanding of global crime trends. Through a chronological analysis of key publications, conferences, and research initiatives, the chapter traces how the concept evolved from observations of declining crime rates in the United States to broader international applications. The author identifies and analyzes four major narratives: the All-American narrative,
APA, Harvard, Vancouver, ISO, and other styles
6

Oramah, Chinwe Philomina, and Odd Einar Olsen. "Equity and Justice in Climate Change Adaptation: Policy and Practical Implication in Nigeria." In African Handbook of Climate Change Adaptation. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-45106-6_45.

Full text
Abstract:
AbstractOver the past decade, justice and equity have become a quasi-universal answer to problems of environmental governance. The principles of justice and equity emerged as a useful entry point in global governance to explore the responsibilities, distribution, and procedures required for just climate change adaptation. These principles are designed primarily through the establishment of funding mechanisms, top-down guides, and frameworks for adaptation, and other adaptation instruments from the UNFCCC process, to ensure effective adaptation for vulnerable countries like Nigeria that have co
APA, Harvard, Vancouver, ISO, and other styles
7

Culotta, Fabrizio. "Given N forecasting models, what to do?" In Proceedings e report. Firenze University Press and Genova University Press, 2023. http://dx.doi.org/10.36253/979-12-215-0106-3.55.

Full text
Abstract:
This work evaluates the forecasting performances of different models using data on Italian unemployment and employment rates over the years 2004-2022 at the monthly frequency. The logic of this work is inspired by the series of M-Competitions, i.e. the tradition of competitions organized to test the forecasting performances of classical and innovative models. Given N competing models, only one winner is selected. The types of forecasting models range from the Exponential Smoothing family to ARIMA-like models, to their hybridization, to machine learning and neural network engines. Model combina
APA, Harvard, Vancouver, ISO, and other styles
8

Rogg, Maria. "Twists of the smart body." In Atlas der Datenkörper 2. transcript Verlag, 2024. http://dx.doi.org/10.14361/9783839470862-021.

Full text
Abstract:
In critical data studies, biometric AI is commonly recognized as a mechanism of exclusion (cf. e.g., Amoore, 2006; Gates, 2011). The technology which is "built to measure life" (Ajana, 2013) processes digital representations of biological data in order to identify and authenticate individuals. Founded on the ideology and governmentality of dataism (van Dijck, 2014), the datafication of embodied identity reduces existence to discrete measurable results, within an imaginary of data as a source of unlimited knowledge. In search of a queer counter narrative of biometrics, this paper presents a phi
APA, Harvard, Vancouver, ISO, and other styles
9

Mee, Nicholas. "The Secret of the Universe." In Gravity: From Falling Apples to Supermassive Black Holes, 2nd ed. Oxford University PressOxford, 2022. http://dx.doi.org/10.1093/oso/9780192845283.003.0003.

Full text
Abstract:
Abstract Astronomy was transformed through the work of Tycho Brahe and Johannes Kepler and this set the stage for the development of modern science. Tycho built enormous instruments to aid his observations and developed techniques for measuring the positions of stars and planets more accurately than ever before. Kepler studied theology and was driven to seek the geometrical architecture of the universe. His early ideas appear strange and mystical today, but following Tycho’s death in 1601, Kepler analysed his data and over the course of several years devised the laws of planetary motion. Keple
APA, Harvard, Vancouver, ISO, and other styles
10

Pierrehumbert, Raymond T. "2. Creation revealed." In Planetary Systems: A Very Short Introduction. Oxford University Press, 2021. http://dx.doi.org/10.1093/actrade/9780198841128.003.0002.

Full text
Abstract:
‘Creation revealed’ examines key observations on planetary systems. Astronomers at first could probe the Universe only through the medium of visible light. In the early 1600s, the invention of the telescope allowed the Universe to be observed in much greater detail. With the discovery of ‘heat rays’, the seeds of infrared astronomy were planted. Meanwhile, throughout the course of the nineteenth century, one of the grandest unifications in physics was accomplished. It was discovered that the forces of electricity and magnetism were in fact different aspects of the same phenomenon: electromagne
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Universe through observations"

1

Ueta, Toshiya. "Investigating Proto-Planetary Nebulae through Angular Differential Imaging." In The Life Cycle of Dust in the Universe: Observations, Theory, and Laboratory Experiments. Sissa Medialab, 2014. http://dx.doi.org/10.22323/1.207.0101.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Zhelenkova, O., T. Plyaskina, V. Shergin, G. Mal'kova, A. Velichko, and M. Kyabishev. "Information system and general archive of SAO RAS observations." In Modern astronomy: from the Early Universe to exoplanets and black holes. Special Astrophysical Observatory of the Russian Academy of Sciences, 2024. https://doi.org/10.26119/vak2024.184.

Full text
Abstract:
The telescopes of the Special Astrophysical Observatory of the Russian Academy of Sciences provide unique observational material. For observations, various astronomical instruments and data acquisition systems are used, which record observations with different data structures and descriptive parameters. The general archive of the observatory contains more than two dozen digital collections with observations obtained on various instruments. Maintaining an archival system requires software development, metadata management, fault tolerance, and periodic migration of files to modern storage media,
APA, Harvard, Vancouver, ISO, and other styles
3

Khoperskov, A., S. Khrapov, D. Sirotin, and A. Zasov. "Merging of spiral galaxies: observations and modeling." In Modern astronomy: from the Early Universe to exoplanets and black holes. Special Astrophysical Observatory of the Russian Academy of Sciences, 2024. https://doi.org/10.26119/vak2024.025.

Full text
Abstract:
We present a study of the dynamics of multi-component models of spiral galaxies at different stages of grand mergers. The numerical models include a self-consistent account of the dynamics of collisionless stellar subsystems and N-body dark matter, as well as gaseous components. The calculation of gas heating and cooling processes allows us to consider a wide temperature range from 80 to 100 thousand degrees. The use of the method of Smoothed-particle hydrodynamics to solve the hydrodynamic equations makes it possible to follow the evolution of the gas of each galaxy, calculating the content o
APA, Harvard, Vancouver, ISO, and other styles
4

Podgorny, A., and I. Podgorny. "Study of the physical mechanism of a solar flare using MHD modeling over an active region: the onset of an extended surface of magnetic lines passing through a chain of current density maxima." In Modern astronomy: from the Early Universe to exoplanets and black holes. Special Astrophysical Observatory of the Russian Academy of Sciences, 2024. https://doi.org/10.26119/vak2024.112.

Full text
Abstract:
The primary release of solar flare energy in the corona at altitudes of 15,000 — 70,000 km is explained by the physical mechanism of S.I. Syrovatsky, based on the rapid release of energy accumulated in the magnetic field of the current layer. The observed manifestations of the solar flare are explained by its electrodynamic model proposed by I.M. Podgorny. The model uses analogies with the electrodynamic model of a substorm, previously developed by its author. Since it is impossible to obtain the magnetic field configuration in the corona from observations, it is necessary to conduct MHD model
APA, Harvard, Vancouver, ISO, and other styles
5

Sergeev, S., and Yu Kazakevich. "Fast implementation of coherent dispersion compensation." In Modern astronomy: from the Early Universe to exoplanets and black holes. Special Astrophysical Observatory of the Russian Academy of Sciences, 2024. https://doi.org/10.26119/vak2024.175.

Full text
Abstract:
The interstellar medium consists of gas and dust components, almost all of which are completely transparent at centimeter wavelengths. The main cause of radio wave scattering in the interstellar medium is ionized gas—plasma. The behavior of radio waves propagating through such a medium is described by the dispersion equation in a rarefied plasma. The plasma frequency is generally a function of position and time, because it depends on the electron density along the line of sight. The dispersion measure physically represents a column of free electrons between a pulsar and the Earth. Thus, the di
APA, Harvard, Vancouver, ISO, and other styles
6

Roccetti, Marco. "A Pedagogy of COVID-19: Facts from 30 Pandemic Months." In 8th International Conference on Human Interaction and Emerging Technologies. AHFE International, 2022. http://dx.doi.org/10.54941/ahfe1002788.

Full text
Abstract:
While the scientific community, health authorities, international media and the public are still arguing about several characteristics of this virus and the patterns of its spread, after 30 months of pandemics there are now some facts, along with their dynamics, over which a scientific consensus has been finally reached. In science, it is well known that facts and observations should be explained by a hypothesis, which should be tested until it is refuted. This is not, unfortunately, still the case for many of the aforementioned agreed facts. Nonetheless, the time has come for a rapid review o
APA, Harvard, Vancouver, ISO, and other styles
7

Jiang, Qize, Minhao Qin, Shengmin Shi, Weiwei Sun, and Baihua Zheng. "Multi-Agent Reinforcement Learning for Traffic Signal Control through Universal Communication Method." In Thirty-First International Joint Conference on Artificial Intelligence {IJCAI-22}. International Joint Conferences on Artificial Intelligence Organization, 2022. http://dx.doi.org/10.24963/ijcai.2022/535.

Full text
Abstract:
How to coordinate the communication among intersections effectively in real complex traffic scenarios with multi-intersection is challenging. Existing approaches only enable the communication in a heuristic manner without considering the content/importance of information to be shared. In this paper, we propose a universal communication form UniComm between intersections. UniComm embeds massive observations collected at one agent into crucial predictions of their impact on its neighbors, which improves the communication efficiency and is universal across existing methods. We also propose a conc
APA, Harvard, Vancouver, ISO, and other styles
8

Tomita, Makoto, and Masahiro Matsuoka. "Picosecond Universal Optical Fluctuation in Strongly Disordered Solid." In International Conference on Ultrafast Phenomena. Optica Publishing Group, 1990. http://dx.doi.org/10.1364/up.1990.wc17.

Full text
Abstract:
Coherent wave propagation and scattering in disordered media are inherently noise-like due to random interfernce in multiply scattering1). We discuss this interference effect in time domain and report the first observation of picosecond universal optical fluctuation in coherent pulse propagation through a strongly disordered solid.
APA, Harvard, Vancouver, ISO, and other styles
9

Risaliti, G., Sandip K. Chakrabarti, and Archan S. Majumdar. "Unveiling the structure of the circumnuclaear medium of AGNs through time-resolved X-ray spectroscopy." In OBSERVATIONAL EVIDENCE FOR BLACK HOLES IN THE UNIVERSE: Proceedings of the 2nd Kolkata Conference on Observational Evidence for Black Holes in the Universe held in Kolkata India, 10–15 February 2008 and the Satellite Meeting on Black Holes, Neutron Stars, and Gamma-Ray Bursts held 16–17 February 2008. AIP, 2008. http://dx.doi.org/10.1063/1.3009524.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Kostovich, Vincent, Daniel A. McAdams, and Seung Ki Moon. "Representing User Activity and Product Function for Universal Design." In ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/detc2009-87507.

Full text
Abstract:
This paper presents a product analysis framework to improve universal design research and practice. Seventeen percent of the US population has some form of a disability. Nevertheless, many companies are unfamiliar with approaches to achieving universal design. A key element of the framework is the combination of activity diagrams and functional models. The framework is applied in the analysis of 20 pairs of products that satisfy a common high level need but differ with one product intended for fully able users and the other intended for persons with some disability or reduced functioning. Disc
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Universe through observations"

1

Reyes, Celia, Aniceto Jr Orbeta, and Ma Kristina Ortiz. Process Evaluation of the Universal Access to Quality Tertiary Education Act (RA 10931): Status and Prospects for Improved Implementation. Philippine Institute for Development Studies, 2020. https://doi.org/10.62986/dp2019.36.

Full text
Abstract:
On August 13, 2017, the Philippine government enacted into law the Universal Access to Quality Tertiary Education Act (UAQTE) or Republic Act 10931, also known as Free Tuition Law, which mandates all public higher education institutions (HEIs) and government-run technical-vocational institutions (TVIs) to provide free quality tertiary education among eligible Filipino students. This long-awaited policy aims to increase access to tertiary education, particularly for students from poorer households. These goals are intended to be achieved through the implementation of four component programs und
APA, Harvard, Vancouver, ISO, and other styles
2

Yatsymirska, Mariya. SOCIAL EXPRESSION IN MULTIMEDIA TEXTS. Ivan Franko National University of Lviv, 2021. http://dx.doi.org/10.30970/vjo.2021.49.11072.

Full text
Abstract:
The article investigates functional techniques of extralinguistic expression in multimedia texts; the effectiveness of figurative expressions as a reaction to modern events in Ukraine and their influence on the formation of public opinion is shown. Publications of journalists, broadcasts of media resonators, experts, public figures, politicians, readers are analyzed. The language of the media plays a key role in shaping the worldview of the young political elite in the first place. The essence of each statement is a focused thought that reacts to events in the world or in one’s own country. Th
APA, Harvard, Vancouver, ISO, and other styles
3

Improved reproductive health and STD services for women presenting to family planning services in North Jakarta. Final report of activities. Population Council, 1997. http://dx.doi.org/10.31899/rh1997.1011.

Full text
Abstract:
The overall goal of this study was to develop an integrated program of reproductive tract infection/sexually transmitted disease (RTI/STD) clinical services within two family planning clinics in low-income neighborhoods in North Jakarta. Multiple training programs to introduce a standardized clinical evaluation for the detection, treatment, and management of RTI/STDs were conducted. Prior and subsequent to training, observations of health care provider (HCP) and client interactions were conducted to evaluate behavior changes among HCPs. Each consenting client received a standardized reproducti
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!