A study of the production of prompt J/ψ mesons contained in jets in proton-proton collisions at s=8TeV is presented. The analysis is based on data corresponding to an integrated luminosity of 19.1 ...fb−1 collected with the CMS detector at the LHC. For events with at least one observed jet, the angular separation between the J/ψ meson and the jet is used to test whether the J/ψ meson is part of the jet. The analysis shows that most prompt J/ψ mesons having energy above 15 GeV and rapidity |y|<1 are contained in jets with pseudorapidity |ηjet|<1. The differential distributions of the probability to have a J/ψ meson contained in a jet as a function of jet energy for a fixed J/ψ energy fraction are compared to a theoretical model using the fragmenting jet function approach. The data agree best with fragmenting jet function calculations that use a long-distance matrix element parameter set in which prompt J/ψ mesons are predicted to be unpolarized. This technique demonstrates a new way to test predictions for prompt J/ψ production using nonrelativistic quantum chromodynamics.
We hypothesized that cyclic electron flow around photosystem I (CEF-PSI) participates in the induction of non-photochemical quenching (NPQ) of chlorophyll (Chl) fiuorescence when the rate of ...photosynthetic linear electron flow (LEF) is electron-acceptor limited. To test this hypothesis, the relationships among photosynthesis rate, electron fluxes through both PSI and PSII Je(PSI) and Je(PSII)l and Chl fluorescence parameters were analyzed simultaneously in intact leaves of tobacco plants at several light intensities and partial pressures of ambient C02 (Ca). At low light intensities, decreasing Ca lowered the photosynthesis rate, but Je(PSI) and Je(PSII) remained constant. Je(PSl) was larger than Je(PSII), indicating the existence of CEF-PSI. Increasing the light intensity enhanced photosynthesis and both Je(PSI) and Je (PSII). Je(PSI)/Je(PSII) also increased at high light and at high light and low Ca combined, showing a strong, positive relationship with NPQ of Chl fluorescence. These results indicated that CEF-PSI contributed to the dissipation of photon energy in excess of that consumed by photosynthesis by driving NPQ of Chl fiuorescence. The main physiological function of CEF-PSI in photosynthesis of higher plants is discussed.
This article presents a comprehensive integration of current experimental evidence and theories about so-called parapsychological (psi) phenomena. Throughout history, people have reported events that ...seem to violate the common sense view of space and time. Some psychologists have been at the forefront of investigating these phenomena with sophisticated research protocols and theory, while others have devoted much of their careers to criticizing the field. Both stances can be explained by psychologists' expertise on relevant processes such as perception, memory, belief, and conscious and nonconscious processes. This article clarifies the domain of psi, summarizes recent theories from physics and psychology that present psi phenomena as at least plausible, and then provides an overview of recent/updated meta-analyses. The evidence provides cumulative support for the reality of psi, which cannot be readily explained away by the quality of the studies, fraud, selective reporting, experimental or analytical incompetence, or other frequent criticisms. The evidence for psi is comparable to that for established phenomena in psychology and other disciplines, although there is no consensual understanding of them. The article concludes with recommendations for further progress in the field including the use of project and data repositories, conducting multidisciplinary studies with enough power, developing further nonconscious measures of psi and falsifiable theories, analyzing the characteristics of successful sessions and participants, improving the ecological validity of studies, testing how to increase effect sizes, recruiting more researchers at least open to the possibility of psi, and situating psi phenomena within larger domains such as the study of consciousness.
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CEKLJ, FFLJ, NUK, ODKLJ, PEFLJ
This paper presents a study on the hybridization of Multi-Criteria Decision-Making (MCDM) methods: Preference Selection Index (PSI), Simple Additive Weighting (SAW), and Measurement Alternatives and ...Ranking according to COmpromise Solution (MARCOS). The hybridization was conducted between the PSI and the other two methods, resulting in new methods, namely PSI-SAW and PSI-MARCOS. For each specific problem, applying these two hybrid methods to rank alternatives among the available options produces three different sets of rankings: one created by PSI, one by the hybrid PSI-SAW, and one by the hybrid PSI-MARCOS. The accuracy of the proposed models was tested in three different cases. The test results show that both proposed models exhibit high accuracy. This study provides users with highly accurate and useful methods for MCDM.
The cross section for coherent J/ψ photoproduction accompanied by at least one neutron on one side of the interaction point and no neutron activity on the other side, Xn0n, is measured with the CMS ...experiment in ultra-peripheral PbPb collisions at sNN=2.76TeV. The analysis is based on a data sample corresponding to an integrated luminosity of 159μb−1, collected during the 2011 PbPb run. The J/ψ mesons are reconstructed in the dimuon decay channel, while neutrons are detected using zero degree calorimeters. The measured cross section is dσXn0ncoh/dy(J/ψ)=0.36±0.04(stat)±0.04(syst) mb in the rapidity interval 1.8<|y|<2.3. Using a model for the relative rate of coherent photoproduction processes, this Xn0n measurement gives a total coherent photoproduction cross section of dσcoh/dy(J/ψ)=1.82±0.22(stat)±0.20(syst)±0.19(theo) mb. The data strongly disfavor the impulse approximation model prediction, indicating that nuclear effects are needed to describe coherent J/ψ photoproduction in γ+Pb interactions. The data are found to be consistent with the leading twist approximation, which includes nuclear gluon shadowing.
The continued investigations of the paranormal facilitated the development of novel theories and methodologies. Psi functioning of the living and the deceased in survival phenomena suggested the ...living agent psi (LAP) and discarnate psi hypotheses, but neither has demonstrated sufficient explanatory power to claim superiority in explaining survival data. Mediumship studies cannot determine whether paranormal information is sourced by means of discarnate psi or LAP, presenting the source-of-psi problem. Anomalous information can be obtained from joint sources (LAP, survival, or some other source), which supports the multiple sources of psi (MSoP) hypothesis. The maximized explanatory potential of the MSoP hypothesis makes the inclusion of the LAP and discarnate psi factors in the calculation of a Drake-S equation for post-mortem survival required and appropriate. This paper concludes that 1) the aggregate effect of skeptical explanations for survival was calculated at 65.6%, leaving 35.4% to paranormal explanations, which contradicts skeptical claims and is inconsistent with the existing laws of conventional science; 2) 16% of paranormal experiences reported among the general population appeared genuine; and 3) the calculated purified probability for all paranormal phenomena equaling 40% can be attributed to paranormal causes. This suggests reasonable plausibility of the survival hypothesis. To refine the existing factors and find new empirical factors related to known confounds and anomalous effects, future research should include more robust procedures and methods of data selection, gathering, and analysis. Keywords: Survival hypothesis, Living agent psi hypothesis (LAP), Discarnate psi hypothesis, Multiple sources of psi hypothesis (MSoP), Source-of-psi problem, Drake-S Equation.
In this paper we investigate the local limit theorem for partial sums of linear sequences of the form Xj=∑i∈Zaiξj−i. Here (ai)i∈Z is a sequence of constants satisfying ∑i∈Zai2<∞ and (ξi)i∈Z are ...functions of a stationary Markov chain with mean zero and finite second moment. The Markov chain is assumed to satisfy one-sided lower psi-mixing condition.
Side and top views of the (a) armchair and (b) zigzag PSi photodetector irradiated by the polarized light, and θ is the polarization angle. The blue and gray atoms are corresponding to the Si and P ...atoms.
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•A graphene-like honeycombed PSi monolayer has been found by our group with its thermodynamical, dynamical and mechanical stability having been listed.•When the linearly polarized light illuminates on the armchair or zigzag photodetector, due to the C1 symmetry of PSi monolayer the PSi photodetector can directly produce high photocurrents.•The produced photocurrents show the relations cos(2θ) and sin(2θ) on the polarization angle θ for the armchair and zigzag photodetector, respectively.•The vacancy- and substitution-doping in the PSi photodetector can enhance the generated photocurrents.
Using particle swarm optimization methodology for crystal structure prediction and first-principles density functional theory, a graphene-like honeycombed PSi monolayer has been found by our group with its thermodynamical, dynamical and mechanical stability having been listed. To extend the application of the PSi monolayer, the armchair and zigzag photodetector devices based on the photogalvanic effect have been built. When the linearly polarized light illuminates on the armchair or zigzag photodetector, due to the C1 symmetry of PSi monolayer the PSi photodetector can directly produce high photocurrents. In addition, the produced photocurrents show the relations cos(2θ) and sin(2θ) on the polarization angle θ for the armchair and zigzag photodetector, respectively. Moreover, the value of photon energy can effectively influence the distribution of generated photocurrents, namely the relations on the angle θ. Especially, the vacancy- and substitution-doping in the PSi photodetector can enhance the generated photocurrents. These results demonstrated great potential applications of the PSi monolayer on the low energy-consumption optoelectronics devices.
It has been claimed that the cyclic electron flow around PSI (CEF-PSI) plays an important role in protection of PSI against fluctuating light photoinhibition. However, the photoprotective mechanism ...of PSI is not fully elucidated. Here, we examined the mechanism, using two CEF-PSI mutants of Arabidopsis thaliana, and antimycin A, an inhibitor of the PGR5 (proton gradient regulation 5)-mediated CEF-PSI. Dark-adapted leaves in these plants were illuminated in fluctuating light alternating between high light at 1,200 µmol m
s
and low light at 30 µmol m
s
every 2 min, and PSI and PSII parameters were simultaneously measured for 160 min with 830 nm absorption and Chl fluorescence, respectively. When CEF-PSI, especially PGR5-mediated CEF-PSI, did not operate, the acceptor-side limitation of PSI, Y(NA), increased stepwise, leading to marked PSI photoinhibition. The deficiency of CFE-PSI decreased not only the electron transport rate through PSI but also the donor-side limitation of PSI, Y(ND), in high light phases. These results showed that the large Y(ND), observed only when CEF-PSI operated, contributed to suppression of PSI photoinhibition. Taken together with our previous report that high Y(NA) was alleviated by the enhancement of CEF-PSI, a model for the protective mechanisms of PSI is proposed. In this model, both alleviation of Y(NA) and acceleration of Y(ND) are indispensable, and for realization of such a situation, regulation of the electron flows, especially the PGR5-mediated CEF-PSI, plays a key role. It is important for effective protection to regulate the balance of Y(ND) and Y(NA) through CEF-PSI.
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