Extraction of “RbSnBi” in liquid ammonia yielded the cluster anion [Sn3Bi5] 3 , which could be crystallized in the compound [Rb@[2.2.2]crypt]3[Sn3Bi5]·8.87NH3. This anion is found to be derived from the formerly reported [Sn4Bi4] 4 by the formal substitution of one tin atom by bismuth. In contrast, the extraction of “RbSn2/Rb3Bi2” in liquid ammonia yielded the anion [Sn3Bi3] 5 in the compound R...

Studying the atomic structure of nanostructured materials presents a special challenge because our extensive crystallographic toolbox begins to lose its power on the nanoscale. The presumption of periodicity is a poor approximation when structural correlation lengths are limited to a few tens of nanometres or less and alternative approaches are needed. Here we give an overview of recent results...

Deep neural networks have shown promise in collaborative filtering (CF). However, existing neural approaches are either user-based or item-based, which cannot leverage all the underlying information explicitly. We propose CF-UIcA, a neural co-autoregressive model for CF tasks, which exploits the structural correlation in the domains of both users and items. The co-autoregression allows extra de...

If Alice is majoring in Computer Science, can we guess the major of her friend Bob? Even harder, can we determine Bob’s age or sexual orientation? Attributed graphs are ubiquitous, occurring in a wide variety of domains; yet there is limited literature on the study of the interplay between the attributes associated to nodes and edges connecting them. Our work bridges this gap by addressing the ...

The spread of disease through a physical-contact network and the spread of information about the disease on a communication network are two intimately related dynamical processes. We investigate the asymmetrical interplay between the two types of spreading dynamics, each occurring on its own layer, by focusing on the two fundamental quantities underlying any spreading process: epidemic threshol...

Logics for expressing properties of Petri hypernets, a visual formalism for modelling mobile agents, are proposed. Two classes of properties are of interest—the temporal evolution of agents and their structural correlation. In particular, we investigate how the classes can be combined into a logic capable of expressing the dynamic evolution of the structural correlation. The problem of model ch...

Metal price is one of the most important parameters in the calculation of cut- off grade. The cut- off grade has the main role in determination of mine layout. Mine layout actuates mineable reserve, mine life and economic profitability. Not considering the uncertainty in metal prices can lead to a non-optimal layout. In this paper optimum underground mine layout is determined by expected utilit...

Accelerometers are becoming more widely used in the assessment of physical activity in children, and converting the output to min of moderate-to-vigorous physical activity (MVPA) requires the use of age-specific cut-off point definitions. However, numerous cut-off points are available among children, and different cutoff point definitions of MVPA have been used in different studies. Comparison ...

Objective High-sensitivity cardiac troponin T (hs-cTnT) is widely used for the diagnosis of acute myocardial infarction (AMI). The current cut-off value of 0.014 ng/mL was determined based on the 99th percentile of a normal reference population; however, little data exist regarding the appropriate cut-off value in the elderly (≥75 years). Accordingly, we aimed to investigate the accuracy of the...

High-sensitivity troponin T (hsTnT) helps in identifying pulmonary embolism patients at low risk of an adverse outcome. In 682 normotensive pulmonary embolism patients we investigate whether an optimised hsTnT cut-off value and adjustment for age improve the identification of patients at elevated risk. Overall, 25 (3.7%) patients had an adverse 30-day outcome. The established hsTnT cut-off valu...