Quarkyonic matter from hydro and rapid freeze out

Quarkyonic matter is a predicted phase between deconfined ideal QGP and Hadronic matter where the dominant degrees of freedom are quarks. Collective flow measurements indicate that the flow developed in QGP, as flow measurements scale with the constituent quark numbers. The possible reasons for the observed constituent quark number scaling were analyzed, arriving to the conclusion that collective flow must have frozen out early when quarks were the dominant constituents of matter.publishedVersio

Link-Prediction to Tackle the Boundary Specification Problem in Social Network Surveys

Diffusion processes in social networks often cause the emergence of global phenomena from individual behavior within a society. The study of those global phenomena and the simulation of those diffusion processes frequently require a good model of the global network. However, survey data and data from online sources are often restricted to single social groups or features, such as age groups, single schools, companies, or interest groups. Hence, a modeling approach is required that extrapolates the locally restricted data to a global network model. We tackle this Missing Data Problem using Link-Prediction techniques from social network research, network generation techniques from the area of Social Simulation, as well as a combination of both. We found that techniques employing less information may be more adequate to solve this problem, especially when data granularity is an issue. We validated the network models created with our techniques on a number of real-world networks, investigating degree distributions as well as the likelihood of links given the geographical distance between two nodes

Influence of model structure on base flow estimation using BILAN FRIER and HBV-light models

Hydrological models are widely used tools to solve a broad range of hydrological issues. Each model has its own structure defining inter-relationships of hydrological balance components, and comparative differences in the models’ inner structure must be taken into account when discrepancies result from the same data. Results of base flow simulation by three different models BILAN, FRIER and HBV-light were compared based on knowledge of the models’ internal structure. It was proven that the courses of modelled parameters are quite similar, but that the respective values differ. The highest base flow values were simulated by the BILAN model, due to the threshold value of the soil moisture storage incorporated within this model’s structure. The lowest values were obtained by HBV-light model. Simulated base flow values were compared with groundwater heads and minimum monthly discharges. This comparison showed that the base flow values in the Nitra catchment at Nedožery profile simulated by BILAN and FRIER models are closer to the reality than those, simulated by HBV-light model

Quarkyonic matter from hydro and rapid freeze out

Quarkyonic matter is a predicted phase between deconfined ideal QGP and Hadronic matter where the dominant degrees of freedom are quarks. Collective flow measurements indicate that the flow developed in QGP, as flow measurements scale with the constituent quark numbers. The possible reasons for the observed constituent quark number scaling were analyzed, arriving to the conclusion that collective flow must have frozen out early when quarks were the dominant constituents of matter

Our faces and brains

Neurological, cognitive and genetic sciences share a longstanding interest in studying the relationship between the shape of the human skull and of the brain. However, the downstream biological genetic underpinnings of such interactions, if they exist, remain largely unknown. A new genetic study now reports on a set of genes that may be involved in substantially shaping the profile of our face and the physical shape of our brain, but not so much its capabilities