Parameterization of NMR relaxation curves in terms of logarithmic moments of the relaxation time distribution

This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 668119 (project “IDentiFY”). We thank Dr. Reiner Zorn for helpful comments on his article [7]; Dr. Oliver Neudert and Dr. Carlos Mattea for introduction to the field-cycling relaxometry and their suggestions about a test sample; and Prof. Dr. Michael Vogel for permission to use the 7Li stimulated-echo data.Peer reviewedPublisher PD

Hypertensive Disorders in Pregnancy: A 5-year Analysis of the Wartime and Postwar Period in South-Western Region of Bosnia and Herzegovina

Hypertensive disorders are among the most common complications in pregnancy and a major cause of perinatal morbidity and mortality. The aim of this study was to investigate the risk factors and adverse perinatal outcomes of pregnancies in mothers with hypertensive disorders, as well as the adequacy of prenatal care during the wartime and postwar period in South-Western region of Bosnia and Herzegovina. This study included a total of 542 pregnancies with hypertensive disorders during 5-year study period (1995–1999) and 1559 randomly selected controls. Data on risk factors, adverse perinatal outcomes (for singleton pregnancies only) and prenatal care on pregnant women were extracted from the medical records and compared with controls. Chi-square test and crude odds ratio (OR) with 95% confidence interval (95% CI) were used in statistical analysis. The average five-year incidence of hypertensive pregnancy disorders was 6.5% and it was significantly higher in 1995, the last year of the war, than in the postwar period (1996–1999) (p=0.02). Factors significantly associated with hypertensive pregnancy disorders were maternal age >34, nulliparity, multifetal gestation and male newborn (p<0.001; except p=0.002 for male newborn). Severe forms of hypertensive disorders were significantly associated with adverse perinatal outcomes: preterm birth (OR 2.6, 95% CI 1.08–6.3), cesarean delivery (OR 9.2, 95% CI 5.4–15.6), fetal growth restriction (OR 63.8, 95% CI 34.8–117.0), and stillbirth (OR 5.5, 95% CI 2.1–14.1). Women with hypertensive pregnancy disorders had significantly lower number of prenatal care visits than controls (p<0.001). There was a high proportion of normally formed macerated stillbirths in the study (27 out of 30 or 90%) and in the control group (10 out of 12 or 83%). In conclusion, severity of the disorder and adequacy of prenatal care are strongly associated with adverse perinatal outcome related to hypertensive pregnancy disorders

Moment conditions in strong laws of large numbers for multiple sums and random measures

The validity of the strong law of large numbers for multiple sums $S_n$ of independent identically distributed random variables $Z_k$, $k\leq n$, with $r$-dimensional indices is equivalent to the integrability of $|Z|(\log^+|Z|)^{r-1}$, where $Z$ is the typical summand. We consider the strong law of large numbers for more general normalisations, without assuming that the summands $Z_k$ are identically distributed, and prove a multiple sum generalisation of the Brunk--Prohorov strong law of large numbers. In the case of identical finite moments of irder $2q$ with integer $q\geq1$, we show that the strong law of large numbers holds with the normalisation $\|n_1\cdots n_r\|^{1/2}(\log n_1\cdots\log n_r)^{1/(2q)+\varepsilon}$ for any $\varepsilon>0$. The obtained results are also formulated in the setting of ergodic theorems for random measures, in particular those generated by marked point processes.Comment: 15 page

Key Problems of the Critical Information Infrastructure through Scada Systems Research

In the current age, cyber security is an essential element of any information system. A key aspect is in the critical information infrastructure, where information security has become a top priority for information and network security experts. The interoperability of an ICT infrastructure with other components of it is an important aspect of its life cycle. Because Supervisory Control and Data Acquisition (SCADA) systems form part of the critical infrastructure, their cyber protection is particularly important in strategically important industrial and infrastructure sites — power plants, refineries, oil pipelines, treatment plants, manufacturing facilities, communications and transportation infrastructures. Along with the advancement of technology, the increasing number of Scada devices available online, the vulnerability of the sectors controlled by them has also increased. In the world of Internet of things (everything), the end devices cause a new wave of possible vulnerabilities in SCADA. They become the new places for attacks and breaches trough wich the system may be accessed or even compromised. There are a number of critical infrastructures in the Community whose disruption or destruction would have significant cross-border implications for more than one sector as a result of the interdependence of interconnected infrastructures. Such European critical infrastructures have been established and launched under a common procedure developed by the European Commission, with security requirements assessed according to a common minimum approach. The present article exposes and examines the critical infrastructures of the European Union and Bulgaria. Trough presenting the structure of a Scada system the vulnerabilities and the various possibilities of attacking it were analised. As an example, a specific case based on trees has been considered, and the obtained results were summarized and visualized. The consequences were analized and respecctive conclusion was done

Geopetrological model of formation diamond-bearing fluid-explosive breccia structures (urals type)

Geopetrological model of diamond-bearing fluid-explosive breccia formations is a well-structured system of the features that are typical of several similar formations in the Cis-Ural and West Ural areas of the Perm Krai. The model reflects a number of basic common factors in these structures’ morphology, their rock composition and the conditions for their formation. Regional and local geological positions featuring diamond-bearing formations as well as the parameters common for their widespread formation areas are characterized. The necessity of mineralogical and geochemical studies of black sand, while prospecting for diamond-bearing targets is highlighted. This will help identify specific mineral associations and geochemical anomalies typical of these widespread formation areas. The description of the geological structure, which the best-studied Efimov deposit, is given in detail. The description of this deposit is used as an example of illustrating the shape of breccia bodies and their polyphase structure, as well as describing their texture and rock structure specifics. Particular attention is paid to the petrographic characteristics of all kinds of fluid-explosive breccias, which to a different extent contain clastic, protomagmatic and newly formed fluidogenic material. The paper gives the characteristics and specifics of mineral grains of various origin, many of which are abundant in gas-liquid inclusions, characterized by block extinction, while quartz possess planar elements. Brought into focus are the differences in the diamond bearing capacity of rocks belonging to different successive evolution phases of fluid breccia formations. The model considered in the paper will make it possible in the course of studies of newly discovered breccia structures with a limited number of parameters to predict their missing features and assessment criteria with respect to possible beneficial mineralization