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We find that interesting implications emerge between the two dark matter components in this framework.
Particle dark matter, i. e., one or more relic particle species from the big bang, is thus strongly suggested as the dominant component of matter in the Universe.
Open accessJournal ArticleDOI
19 Mar 1990-Nuclear Physics
171 Citations
We propose that dark matter is made of CHAMP's, charged massive particles that survive annihilation in the early Universe.
Open accessJournal ArticleDOI
90 Citations
Furthermore, MFV implies specific patterns of mass splittings among the flavors of dark matter and governs the structure of the couplings between dark matter and ordinary particles, leading to a rich and predictive cosmology and phenomenology.

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What is the concept of the universe according to Augustinus?
4 answers
Augustine's concept of the universe in his Confessiones involves the use of exempla, which are scenes or examples that play a significant role in his conversion. These exempla, such as the famous garden scene with children singing, are seen as part of divine predestination, guiding individuals towards conversion. Additionally, Augustine's view of the universe aligns with a universal plan of salvation rooted in divine providence, connecting individuals to a pre-existing salvation scheme since creation. This contrasts with other philosophical views, like that of Lucretius, who emphasized a mechanistic understanding of the universe governed by natural laws rather than divine intervention. Augustine's approach intertwines exempla with the development of his understanding of the human will, showcasing a unique blend of theological and philosophical elements in his concept of the universe.
What is the concept of the universe according to Augustine?
5 answers
Augustine's concept of the universe revolves around the idea of creation and time. He delves into the nature of creation, influenced by his cultural background and beliefs in divine dissolution. Augustine's thoughts on time and the beginning of the Universe are reflected in a cosmological model that proposes a causality argument to address cosmological homogeneity and entropy issues. This model suggests a chronology violating region preceding the rest of the Universe, replacing the spacelike boundary of the Big Bang with a null hypersurface where gravitational degrees of freedom are nearly frozen, leading to a highly homogeneous and thermalized matter and radiation content. Augustine's views intertwine with this model, emphasizing a deep connection between divine predestination and the unfolding of a universal salvation plan embedded in creation.
How do galaxy clusters contribute to the large-scale structure of the universe?
5 answers
Galaxy clusters play a crucial role in shaping the large-scale structure of the universe through various mechanisms. The growth of the most massive halos via accretion and mergers generates shocks, bulk motions, and turbulence, injecting kinetic energy that contributes to heating and virialization, impacting the intra-cluster medium. Additionally, the expansion of the universe, incorporating a cosmological constant, affects the formation of large-scale structures, leading to gravitational phase transitions and cosmic energy equations within the system of galaxies. Observations of extragalactic filaments and the mapping of large-scale density fluctuations using statistical parameters like power spectra provide insights into the structure of the universe and constrain models of dark matter, dark energy, inflation, and brane cosmology. Tools like CLASS-PT and theoretical error likelihood approaches enable precise cosmological analyses of galaxy clustering data, extracting valuable cosmological information.
What is the current status of WIMPs?
4 answers
The current status of Weakly Interacting Massive Particles (WIMPs) as dark matter candidates is characterized by ongoing experimental efforts across various fronts. Direct detection experiments in underground laboratories, gamma-ray, cosmic ray, x-ray, neutrino telescopes, and the LHC are actively searching for WIMPs. Despite extensive searches combining direct, indirect, and collider probes, no conclusive signal has been detected so far. Future large-exposure direct detection experiments are poised to probe a wide range of WIMP masses, with muon colliders emerging as a promising tool to explore complex WIMP scenarios, including those where direct detection cross sections drop below the neutrino floor. These endeavors aim to shed light on the nature of WIMPs and potentially uncover crucial insights into the dark matter puzzle.
Dark photons and dark neutrinos are the same or sterile neutrinos?
5 answers
Dark photons and dark neutrinos are distinct entities. Dark photons are hypothetical particles associated with dark matter interactions, while sterile neutrinos are neutrino variants that do not participate in weak interactions. Sterile neutrinos can be involved in dark matter scenarios, acting as mediators between dark matter and the Standard Model sector. On the other hand, dark photons are typically linked to new forces interacting with dark matter, potentially explaining anomalies like the muon's anomalous magnetic moment. Therefore, while sterile neutrinos can play a role in dark matter models, dark photons are more related to new forces and interactions within the dark sector, highlighting the distinction between these two hypothetical particles.
Who creates dark web?
5 answers
The dark web is primarily created by individuals and organizations who host websites that can only be accessed through special anonymizing software like the Tor package. This hidden part of the internet has become a haven for various activities, including criminal enterprises that take advantage of the anonymity provided by the dark web and the use of anonymous cryptocurrency payments. While law enforcement struggles to track down these hidden sites, most successful actions against them have been due to operational mistakes made by the administrators of these sites. The dark web's structure and accessibility through specialized tools like Tor contribute to its elusive nature, making it challenging for authorities to monitor and regulate effectively.
What are this parts of an reverse fabric filter?
5 answers
The components of a reverse fabric filter include a filter body, electric power motor, coarse filter screen, fine filter screen, flexible plate, fixed plate, rotating rod, bristles, waste discharge valve, exhaust valve, differential pressure transmitter, and controller. Additionally, the reverse fabric filter comprises a first chamber with filter bags, a second chamber with manifolds and nozzles, and a flow direction for dirty gas entry with angles over 45 degrees. Furthermore, an electrostatic fabric composite filter consists of a preceding stage electric field region, a backward stage dust removal bag region with a filter bag and a mercury removal device for flue gas treatment. Electrical forces can also be utilized to enhance fabric filters, with an experimental apparatus featuring wire-tube prechargers and fibrous filters in a reversed external electric field.
How does the Mandela effect relate to the theory of false memories?
5 answers
The Mandela effect, a phenomenon describing shared false memories, is closely related to the theory of false memories. False memories, as explored in various contexts, involve recalling events that did not occur, leading to potentially dangerous consequences, especially within the criminal justice system. The Mandela effect specifically focuses on consistent false memories for popular cultural icons, suggesting a collective misremembering of specific details. This phenomenon intertwines with contemporary technoscience culture and memory research, shedding light on how advanced information technology influences human cognition and belief. Moreover, the multiverse theory introduces the concept of causality within the Mandela effect, suggesting that within a complex theoretical framework, such false memories could exist across different universes. The intricate relationship between the Mandela effect and false memories highlights the malleability and fallibility of human memory processes.
What are Basic elements of naturopthay?
5 answers
Naturopathy, a system of healing, focuses on utilizing the five basic elements of nature - earth, water, air, fire, and ether - to stimulate the body's inherent ability to regain health. This approach emphasizes maintaining harmony with nature to promote a healthy life by addressing imbalances in these natural elements that can lead to diseased states. Naturopathy's principles, rooted in ancient Indian traditions and detailed in scriptures like the Vedas, prioritize preventive health measures over curative ones. By correcting underlying factors and allowing the body to heal itself, naturopathy offers a safe and effective path to wellness, promoting positive thinking, reducing stress, and enhancing overall health. This holistic approach not only treats ailments but also guides individuals towards a healthier lifestyle aligned with the laws of nature.
What is the theoretical framework for understanding the behavior of two-temperature non-spreading electrons in magnetic ion-acoustic double layers?
5 answers
The theoretical framework for studying the behavior of two-temperature non-spreading electrons in magnetic ion-acoustic double layers involves various aspects. The presence of nonthermal electrons and ion beams affects the formation of ion-acoustic double layers in warm ion plasma, with compressive and rarefactive double layers being observed based on different parameters. In a nonuniform electron plasma with field-aligned shear flow and two electron populations, electron-acoustic solitary waves are investigated, showing a weak dependence of wave speed on electron temperatures. Additionally, the linear characteristics of unstable ion-acoustic waves in a plasma with streaming hot electrons and nonextensive q-distribution function are explored, highlighting the effects of nonextensive parameters on wave stability. These studies provide insights into the complex interplay of electron temperatures, nonthermal effects, and plasma conditions in understanding the dynamics of ion-acoustic double layers.
Education what is theory?
4 answers
Education theory encompasses various perspectives on the process of learning and teaching. It is a systematic interpretation of knowledge related to learning. The evolution of educational theory can be traced through different waves, from philosophical roots in ancient texts to the emergence of experimental psychology in the nineteenth century. Theories of education have been linked to values and the molding of human understanding and cultural ideals. These theories aim to explain, organize, and predict learning processes, drawing from diverse fields such as cognitivism, behaviorism, constructivism, and connectionism. The significance of theory in educational research lies in its ability to describe, analyze, explain, and predict phenomena, providing a framework for researchers to interpret evidence and make claims.