Topological Quantum Teleportation and Superdense Coding Without Braiding

We present the quantum teleportation and superdense coding protocols in the context of topological qudits, as realised by anyons. The simplicity of our proposed realisation hinges on the monoidal structure of Tambara-Yamagami categories, which readily allows for the generation of maximally entangled qudits. In particular, we show that both protocols can be performed without any braiding of anyons. Our exposition makes use of the graphical calculus for braided fusion categories, a medium in which the protocols find a natural interpretation. We also find a braid-free realisation of the Pauli gates using Ising anyons

Infinite Factorial Finite State Machine for Blind Multiuser Channel Estimation

New communication standards need to deal with machine-to-machine communications, in which users may start or stop transmitting at any time in an asynchronous manner. Thus, the number of users is an unknown and time-varying parameter that needs to be accurately estimated in order to properly recover the symbols transmitted by all users in the system. In this paper, we address the problem of joint channel parameter and data estimation in a multiuser communication channel in which the number of transmitters is not known. For that purpose, we develop the infinite factorial finite state machine model, a Bayesian nonparametric model based on the Markov Indian buffet that allows for an unbounded number of transmitters with arbitrary channel length. We propose an inference algorithm that makes use of slice sampling and particle Gibbs with ancestor sampling. Our approach is fully blind as it does not require a prior channel estimation step, prior knowledge of the number of transmitters, or any signaling information. Our experimental results, loosely based on the LTE random access channel, show that the proposed approach can effectively recover the data-generating process for a wide range of scenarios, with varying number of transmitters, number of receivers, constellation order, channel length, and signal-to-noise ratio.Comment: 15 pages, 15 figure

Perception on Poisoning Among Adult Urban Community Members

Household poisoning is a public health issue in developing countries. This study was conducted to determine the perceptions of residents in Pasay City towards household poisoning, using a quantitative descriptive design, through a survey-interview data collection method. The study found that 58% of the respondents perceived improper food preparation as the most common source of poisoning, while 14% reported the absence of poisonous substances in their homes. Only 64% reported seeking medical consult as a priority intervention. Lastly, 83% identified proper labeling as a prevention method for poisoning. The researchers recommend increased public awareness regarding household poisoning, more visibility of therole of NPMCC in the community, and a second interventional phase of the study

Fall Risk Among Urban Community Older Persons

The elderly should be screened in the community for risk for falls. It impacts significantly on their ability to still be active and productive even during aging. This study determined the risk for falls among Philippine urban community-dwellers 65 years old and above. Participants were ambulatory elderly peopleregistered in a government centre in one city. Data collection was done by interviewing elders and assessing fall risk factors. Data analyses were done using descriptive statistics and SPSS version 16 was used to correlate variables. Fall risk predictive factor is age. 63.3% of the participants are categorized as young-old to middle old. Protective factor fall risk is being married and/or living with family, which is 65.3% of this group. Confidence level in performance and completion of tasks were measured by Activity-Based Confidence (ABC), which showed 71.5% has moderate level of confidence. However, confidence level isinsufficiently-proven by literature to predict falls. Depression is statistically significant related factor for falls and was measured by Geriatric Depression Scale (GDS). Results showed that 87.7% has mild depression. Functional mobility capacity of the participants, namely balance and gait, and flexibility were measured by Tinetti Balance and Gait Scores (TBGS) and Chair Sit-and-Reach Test (CSRT), respectively. TBGS yielded 46.9%, and CSRT yielded 67.3%, which is low risk for falls. Correlation between TBGS and GDS, and TBGS and ABC were arrived at by using Spearman Rho. It yielded a significant relationship (r = 0.358, p = 0.012) between balance and gait with a depressive state, and no significant relationship (r = -0.136, p = 0.352) between balance and gait with confidence level, respectivel

Faunal remains associated with human cremations: The chalcolithic pits 16 and 40 from the Perdigões ditched enclosures (Reguengos de Monsaraz, Portugal)

Different funerary behaviors are recorded in the Iberian Peninsula during Late Prehistory. Cremation is not the most common practice and the association between human cremains and fauna is even scarcer. We present two Chalcolithic pits (pits 16 and 40) from the Perdigoes ditched enclosures, Reguengos de Monsaraz, Portugal. Humans were accompanied by animals and other votive materials such as arrowheads, ivory anthropomorphic figurines, and marble idols. Differences between the two contexts are discussed regarding the selection of faunal anatomical parts, the abundance of species, and the manipulation of remains. The results obtained were compared to previously published data from anthropological analysis. Burning damage intensity is different among pits and between humans and fauna. Hence, this suggests that the latter also resulted from diverse practices, including the possible selection of animal body portions for cremation and/or the deposition of selected burned bones or even related to patterns existing in the contexts of the provenance of the cremated materials before the cremation events.info:eu-repo/semantics/publishedVersio

Study on premixed combustion characteristics of co-firing ammonia/methane fuels

Ammonia is believed eventually play an important role in substituting conventional fossil fuels for future energy systems. In this study, to gain a deep insight into the combustion properties of co-firing ammonia/methane fuel blends for the power and steel industry, a detailed chemical-kinetics mechanism model was developed for comprehensively modelling ammonia/methane fuels combustion. Characteristics of ignition delay time, unstretched laminar burning velocity and NO, CO2 and CO emissions in the exhaust gas were obtained over a wide range of equivalence ratios and ammonia fractions. High NO emissions will be a main problem as CO and CO2 emissions tend to drop when adding ammonia into methane. To gain a further understanding of the effect of ammonia substituting methane for combustion use, analyses of laminar premixed flame structures were performed. The impact of ammonia substitution was illustrated by analysing relevant specific radicals. Furthermore, to study the combustion characteristics of ammonia/methane under more practical conditions, effects of engine relevant conditions (elevated pressure and initial temperature) were also studied. Results indicate that pressure has a more prominent effect than initial temperature and there is a good potential that unwanted emissions can be reduced significantly under industrial conditions