Multi-trace correlators in the SYK model and non-geometric wormholes

We consider multi-energy level distributions in the SYK model, and in particular, the role of global fluctuations in the density of states of the SYK model. The connected contributions to the moments of the density of states go to zero as N → ∞, however, they are much larger than the standard RMT correlations. We provide a diagrammatic description of the leading behavior of these connected moments, showing that the dominant diagrams are given by 1PI cactus graphs, and derive a vector model of the couplings which reproduces these results. We generalize these results to the first subleading corrections, and to fluctuations of correlation functions. In either case, the new set of correlations between traces (i.e. between boundaries) are not associated with, and are much larger than, the ones given by topological wormholes. The connected contributions that we discuss are the beginning of an infinite series of terms, associated with more and more information about the ensemble of couplings, which hints towards the dual of a single realization. In particular, we suggest that incorporating them in the gravity description requires the introduction of new, lighter and lighter, fields in the bulk with fluctuating boundary couplings.

Joint global fluctuations of complex Wigner and deterministic matrices

We characterize the limiting fluctuations of traces of several independent Wigner matrices and deterministic matrices under mild conditions. A CLT holds but in general the families are not asymptotically free of second-order and the limiting covariance depends the limiting [Formula: see text]-distribution of the deterministic matrices and their transposes and Hadamard products.

KEGIATAN CITATION (INDIVIDU) About Global Fluctuations Affect The Indonesian Economy In Fishery Sector Companies

Global developments affect the fisheries sector business in Indonesia. Based on the performance of export and import from 2013-2019. All involvement from financial issues, management, investment, climate conditions that exist in Indonesia. Also transactions in companies in the fish tradeTransformation of the fisheries business is a risk in seeing changes in the environment, to the way a company or organization develops its business so that it can last a long time or vice versa. In fisheries business we also innovate with the budget an organization or company has by looking at economic conditions as well. Organizations also distribute and do marketing to everyone. Which is the interaction between workers and customers

Tugas Perekonomian Indonesia To KEGIATAN CITATION (INDIVIDU) About Global Fluctuations Affect The Indonesian Economy In Fishery Sector Companies Nama: Tiffany Cuanda, NRP: 130217103, KP: A, Mata Kuliah : Perekonomian Indonesia

Global developments affect the fisheries sector business in Indonesia. Based on the performance of export and import from 2013-2019. All involvement from financial issues, management, investment, climate conditions that exist in Indonesia. Also transactions in companies in the fish trade Transformation of the fisheries business is a risk in seeing changes in the environment, to the way a company or organization develops its business so that it can last a long time or vice versa. In fisheries business we also innovate with the budget an organization or company has by looking at economic conditions as well. Organizations also distribute and do marketing to everyone. Which is the interaction between workers and customers

Age-Dependent Changes in Soil Respiration and Associated Parameters in Siberian Permafrost Larch Stands Affected by Wildfire

The observed high spatial variation in soil respiration (SR) and associated parameters emphasized the importance of SR heterogeneity at high latitudes and the involvement of many factors in its regulation, especially within fire-affected areas. The problem of estimating CO2 emissions during post-fire recovery in high-latitude ecosystems addresses the mutual influence of wildfires and climate change on the C cycle. Despite its importance, especially in permafrost regions because of their vulnerability, the mutual influence of these factors on CO2 dynamics has rarely been studied. Thus, we aimed to understand the dynamics of soil respiration (SR) in wildfire-affected larch recovery successions. We analyzed 16-year data (1995–2010) on SR and associated soil, biological, and environmental parameters obtained during several field studies in larch stands of different ages (0–276 years) in the Krasnoyarsk region (Russia). We observed a high variation in SR and related parameters among the study sites. SR varied from 1.77 ± 1.18 (mean ± SD) µmol CO2 m−2 s−1 in the 0–10-year-old group to 5.18 ± 2.70 µmol CO2 m−2 s−1 in the 150–276-year-old group. We found a significant increasing trend in SR in the 88–141-year old group during the study period, which was related to the significant decrease in soil water content due to the shortage of precipitation during the growing season. We observed a high spatial variation in SR, which was primarily regulated by biological and environmental factors. Different parameters were the main contributors to SR in each group, an SR was significantly affected by the inter-relationships between the studied parameters. The obtained results can be incorporated into the existing SR databases, which can allow their use in the construction and validation of C transport models as well as in monitoring global fluctuations in the C cycle in response to climate change.

Re-orientation of Russia to the Asian markets as a main direction of its foreign trade policy

Research background: The authors on a systematic basis have investigated the features of trade relations between Russia and neighboring Asian states. It was published several articles on this issue in Russia and abroad, including publications in Scopus and Web of Science indexed journals. Purpose of the article: The aim of the research is to analyze the current situation and prospects for the development of mutual trade cooperation between Russia and neighboring Asian states (Kazakhstan, Mongolia, China, Kyrgyzstan, Tajikistan, Uzbekistan and Turkmenistan). Methods: The research is based on the methodology of general system theory. The present research was accomplished using the following methods for studying complex social objects: synthesis, comparison, system analysis, analogy, construction of scientifically based hypotheses, etc. The theoretical basis for the study was the works of M.O. Slobodchikoff, M.E. Aleprete [1], P. Bargues-Pedreny [2], R. Mac Ginty [3], and J. L. Austin [4]. Findings & Value added: The authors have investigated mutual trade cooperation between Russia and neighboring Asian states (Kazakhstan, Mongolia, China, Kyrgyzstan, Tajikistan, Uzbekistan and Turkmenistan). The study has showed that the major problem of Russia’s trade with neighboring Asian states is based on resource-oriented export. Russia’s key task at Central Asian market is to expand the share of non-resource-based sectors. A variety of export categories will make the Russian economy more resilient to global fluctuations and crises. At the same time, it is necessary to develop trade and economic cooperation with India, Indonesia and Brazil, as well as to form a coalition of non-aligned countries and African countries in order to deter China and the USA.

Dissociation of task engagement and arousal effects in auditory cortex and midbrain

The brain’s representation of sound is influenced by multiple aspects of internal behavioral state. Following engagement in an auditory discrimination task, both generalized arousal and task-specific control signals can influence auditory processing. To isolate effects of these state variables on auditory processing, we recorded single-unit activity from primary auditory cortex (A1) and the inferior colliculus (IC) of ferrets as they engaged in a go/no-go tone detection task while simultaneously monitoring arousal via pupillometry. We used a generalized linear model to isolate the contributions of task engagement and arousal on spontaneous and evoked neural activity. Fluctuations in pupil-indexed arousal were correlated with task engagement, but these two variables could be dissociated in most experiments. In both A1 and IC, individual units could be modulated by task and/or arousal, but the two state variables affected independent neural populations. Arousal effects were more prominent in IC, while arousal and engagement effects occurred with about equal frequency in A1. These results indicate that some changes in neural activity attributed to task engagement in previous studies should in fact be attributed to global fluctuations in arousal. Arousal effects also explain some persistent changes in neural activity observed in passive conditions post-behavior. Together, these results indicate a hierarchy in the auditory system, where generalized arousal enhances activity in the midbrain and cortex, while task-specific changes in neural coding become more prominent in cortex.

Conclusion

Russia and China took fundamentally different approaches to authoritarian rule beginning in the 1980s. But there is another dimension to the divide of the 1980s that has rendered. Chinese and Russian authoritarianisms increasingly similar: their common embrace of globalization. Both regimes established statist versions of globalization that seek to contain the impact of external influences and global fluctuations even while integrating into the global economic system. Even while globalizing, both have engaged in similar efforts to regulate their civil societies, cut them off from external sources of support, inoculate citizens against foreign ideas, and utilize globalization to their advantage. In their congruent handling of the challenges posed by globalization, Chinese and Russian authoritarianism may in fact be converging toward common forms of domination that render the institutional differences between competitive and non-competitive forms of authoritarianism moot.

Global and local mechanical properties control endonuclease reactivity of a DNA origami nanostructure

We used coarse-grained molecular dynamics simulations to characterize the global and local mechanical properties of a DNA origami triangle nanostructure. The structure presents two metastable conformations separated by a free energy barrier that is lowered upon omission of four specific DNA staples (defect). In contrast, only one stable conformation is present upon removing eight staples. The metastability is explained in terms of the intrinsic conformations of the three trapezoidal substructures. We computationally modeled the local accessibility to endonucleases, to predict the reactivity of twenty sites, and found good agreement with the experimental data. We showed that global fluctuations affect local reactivity: the removal of the DNA staples increased the computed accessibility to a restriction enzyme, at sites as distant as 40 nm, due to an increase in global fluctuation. These results raise the intriguing possibility of the rational engineering of allosterically modulated DNA origami.