93 research outputs found
Rebels Lead to the Doctrine of the Mean: Opinion Dynamic in a Heterogeneous DeGroot Model
We study an extension of the DeGroot model where part of the players may be
rebels. The updating rule for rebels is quite different with that of normal
players (which are referred to as conformists): at each step a rebel first
takes the opposite value of the weighted average of her neighbors' opinions,
i.e. 1 minus that average (the opinion space is assumed to be [0,1] as usual),
and then updates her opinion by taking another weighted average between that
value and her own opinion in the last round. We find that the effect of rebels
is rather significant: as long as there is at least one rebel in every closed
and strongly connected group, under very weak conditions, the opinion of each
player in the whole society will eventually tend to 0.5.Comment: 7 pages, Proceedings of The 6th International Conference on
Knowledge, Information and Creativity Support Systems, Beijing, 201
How group cohesion promotes the emergence of cooperation in public goods game under conditional dissociation?
A172: Performance of Muscle Explosive and Maximal Strength in Trampoline Athletes at Different Levels of Competition
Purpose: To study the differences in lower limb muscle explosive and maximal strength among trampoline athletes at different levels of competition.
Methods: A total of fifteen trampoline athletes, comprising seven elite and eight non-elite athletes, participated in this project. Lower limb explosive strength was assessed using the countermovement jump (CMJ) test. Maximal strength was evaluated by the MicroFet portable system. The maximal strength of the hip, knee, and ankle were measured and standardized by weight. Independent t-tests were employed to examine the differences between the two groups. Cohen’s d was used to evaluate the related effect size. Small, medium, and large effect sizes are represented by 0.20 ≤ d \u3c 0.50, 0.50 ≤ d \u3c 0.80, and d ≥ 0.80, respectively.
Results: Significant differences were observed in the CMJ performance between the two groups. The take-off velocity of elite athletes (2.91±0.17m/s) was higher than that of non-elite athletes (2.63±0.24 m/s, p=0.023, d=1.328). Additionally, the jump height increased from elite athletes (0.42±0.05m) to non-elite athletes (0.32±0.06m, p=0.009, d=1.591). Furthermore, elite athletes demonstrated higher average power output (32.79±3.49W/kg) compared to non-elite athletes (27.10±3.51W/kg, p=0.008, d=1.627). The reactive strength index in the non-elite athletes (0.75±0.12m/s) was lower than in the elite athletes (0.96±0.15m/s, p=0.011, d=1.530). However, no significant differences were observed in relative muscle strength of the lower limb (hip, knee, and ankle) between the two groups (p \u3e 0.05).
Conclusion: For trampoline athletes, the explosive strength of the lower limbs appears to have a more pronounced effect on performance than maximal strength. Therefore, developing the explosive strength of the lower limbs may be crucial for enhancing the performance of trampoline athletes
Antibiotics induce polarization of pleural macrophages to M2-like phenotype in patients with tuberculous pleuritis
Pleural macrophages play critical roles in pathogenesis of tuberculous pleuritis, but very little is known about their response to anti-tuberculosis antibiotics treatment. Here, we examined whether and how pleural macrophages change in phenotype, transcription and function following antibiotics treatment in patients with tuberculous pleuritis. Results show pro-inflammatory cytokines were down-regulated significantly post antibiotic treatment in the pleural effusions and pleural macrophages up-regulated markers characteristic of M2 macrophages such as CD163 and CD206. Differential expression analysis of transcriptomes from four paired samples before and after treatment identified 230 treatment-specific responsive genes in pleural macrophages. Functional analysis identified interferon-related pathway to be the most responsive genes and further confirmed macrophage polarization to M2-like phenotype. We further demonstrate that expression of a significant fraction of responsive genes was modulated directly by antibiotics in pleural macrophages in vitro. Our results conclude that pleural macrophages polarize from M1-like to M2-like phenotype within a mean of 3.5 days post antibiotics treatment, which is dependent on both pleural cytokine environment and direct modulatory effects of antibiotics. The treatment-specific genes could be used to study the roles of pleural macrophages in the pathogenesis of tuberculous pleuritis and to monitor the response to antibiotics treatment
Fashion, Cooperation, and Social Interactions
Fashion plays such a crucial rule in the evolution of culture and society
that it is regarded as a second nature to the human being. Also, its impact on
economy is quite nontrivial. On what is fashionable, interestingly, there are
two viewpoints that are both extremely widespread but almost opposite:
conformists think that what is popular is fashionable, while rebels believe
that being different is the essence. Fashion color is fashionable in the first
sense, and Lady Gaga in the second. We investigate a model where the population
consists of the afore-mentioned two groups of people that are located on social
networks (a spatial cellular automata network and small-world networks). This
model captures two fundamental kinds of social interactions (coordination and
anti-coordination) simultaneously, and also has its own interest to game
theory: it is a hybrid model of pure competition and pure cooperation. This is
true because when a conformist meets a rebel, they play the zero sum matching
pennies game, which is pure competition. When two conformists (rebels) meet,
they play the (anti-) coordination game, which is pure cooperation. Simulation
shows that simple social interactions greatly promote cooperation: in most
cases people can reach an extraordinarily high level of cooperation, through a
selfish, myopic, naive, and local interacting dynamic (the best response
dynamic). We find that degree of synchronization also plays a critical role,
but mostly on the negative side. Four indices, namely cooperation degree,
average satisfaction degree, equilibrium ratio and complete ratio, are defined
and applied to measure people's cooperation levels from various angles. Phase
transition, as well as emergence of many interesting geographic patterns in the
cellular automata network, is also observed.Comment: 21 pages, 12 figure
Real-time Monitoring for the Next Core-Collapse Supernova in JUNO
Core-collapse supernova (CCSN) is one of the most energetic astrophysical
events in the Universe. The early and prompt detection of neutrinos before
(pre-SN) and during the SN burst is a unique opportunity to realize the
multi-messenger observation of the CCSN events. In this work, we describe the
monitoring concept and present the sensitivity of the system to the pre-SN and
SN neutrinos at the Jiangmen Underground Neutrino Observatory (JUNO), which is
a 20 kton liquid scintillator detector under construction in South China. The
real-time monitoring system is designed with both the prompt monitors on the
electronic board and online monitors at the data acquisition stage, in order to
ensure both the alert speed and alert coverage of progenitor stars. By assuming
a false alert rate of 1 per year, this monitoring system can be sensitive to
the pre-SN neutrinos up to the distance of about 1.6 (0.9) kpc and SN neutrinos
up to about 370 (360) kpc for a progenitor mass of 30 for the case
of normal (inverted) mass ordering. The pointing ability of the CCSN is
evaluated by using the accumulated event anisotropy of the inverse beta decay
interactions from pre-SN or SN neutrinos, which, along with the early alert,
can play important roles for the followup multi-messenger observations of the
next Galactic or nearby extragalactic CCSN.Comment: 24 pages, 9 figure
JUNO Sensitivity to Invisible Decay Modes of Neutrons
We explore the bound neutrons decay into invisible particles (e.g.,
or ) in the JUNO liquid scintillator
detector. The invisible decay includes two decay modes: and . The invisible decays of -shell neutrons in
will leave a highly excited residual nucleus. Subsequently, some
de-excitation modes of the excited residual nuclei can produce a time- and
space-correlated triple coincidence signal in the JUNO detector. Based on a
full Monte Carlo simulation informed with the latest available data, we
estimate all backgrounds, including inverse beta decay events of the reactor
antineutrino , natural radioactivity, cosmogenic isotopes and
neutral current interactions of atmospheric neutrinos. Pulse shape
discrimination and multivariate analysis techniques are employed to further
suppress backgrounds. With two years of exposure, JUNO is expected to give an
order of magnitude improvement compared to the current best limits. After 10
years of data taking, the JUNO expected sensitivities at a 90% confidence level
are and
.Comment: 28 pages, 7 figures, 4 table
A Constructionalization Approach to the “Hen + X” Construction from the Perspective of Information Structure
“Hen” is a common degree adverb in modern Chinese, which is generally used to modify verbs, adjectives and adverbs. The special phenomenon that “Hen” modifies nouns has attracted the attention of many scholars. Based on the theory of Diachronic Construction Grammar, this study attempts to investigate the constructionalization process of the “Hen + X” construction (X refers to words of any part of speech) through using corpus, clarify the evolution of the form-meaning/function of the “Hen + X” construction, analyze the cognitive mechanism behind the constructionalization of the “Hen + X” construction, and explore the cognitive motivation of the constructionalization of the “Hen + X” construction, which aims to enrich the study of the “Hen + X” construction and provide a new way of thinking for the study of Diachronic Construction Grammar
A Constructionalization Approach to the “Hen + X” Construction from the Perspective of Information Structure
“Hen (?)” is a common degree adverb in modern Chinese, which is generally used to modify verbs, adjectives and adverbs. The special phenomenon that “Hen” modifies nouns has attracted the attention of many scholars. Based on the theory of Diachronic Construction Grammar, this study attempts to investigate the constructionalization process of the “Hen + X” construction (X refers to words of any part of speech) through using corpus, clarify the evolution of the form-meaning/function of the “Hen + X” construction, analyze the cognitive mechanism behind the constructionalization of the “Hen + X” construction, and explore the cognitive motivation of the constructionalization of the “Hen + X” construction, which aims to enrich the study of the “Hen + X” construction and provide a new way of thinking for the study of Diachronic Construction Grammar.</jats:p
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