Impact of mechanical stratification on the structural style of the Lublin Basin, SE Poland: results of seismic interpretation and implications for quantification of deformation within the frontal parts of thin-skinned fold-and-thrust belts

We demonstrate how lithological and mechanical stratification of Ediacaran–Carboniferous sedimentary package governs strain partitioning in the Lublin Basin (LB) which was incorporated in the marginal portion of the Variscan fold-and-thrust belt. Based on the geometry of seismic reflectors, the pre-Permian–Mesozoic sedimentary sequence was subdivided into two structural complexes differing in structural style. The lower one reveals forelandward-vergent imbrication, while the upper one comprises fold train, second-order deformations, and multiple local detachments. Lithological composition of the upper structural complex controlled geometry, kinematics, and position of compressional deformations in stratigraphic profile. System of foreland-vergent thrusts which links lower and upper detachment developed due to efficiency of simple shear operating in heterogeneous clastic-carbonate-evaporitic strata of the Lower–Upper Devonian age. Internal homogeneity promoted the formation of conjugate sets of thrusts in Silurian shales and Upper Devonian limestones. Structural seismic interpretation combined with sequential restoration revealed localised thickening of Devonian strata and up to 5% difference in length of Devonian horizons. This mismatch is interpreted as a manifestation of distributed shortening, including layer-parallel shortening (LPS), which operated before or synchronously to the initiation of folding. The amount of distributed strain is comparable with numbers obtained in external parts of other fold-and-thrust belts. The outcomes derived from this study may act as a benchmark for studying variability in a structural style of multilayered sequences which were incorporated in the external portion of other fold-and-thrust belts.

Development and psychometric evaluation of a reflection on clinical practice questionnaire for nursing students

Background Reflection on clinical practice is the core of education for nursing students. Evaluating reflection on clinical experiences requires a tool which accurately measures reflection skills. The present study aims to develop and test the psychometric properties of a tool for measuring nursing students’ reflection on clinical practice. Methods Based on a mix-method exploratory approach, the study was carried out in two stages: in the first stage (the qualitative phase), the concept of reflection on clinical practice was established. In the second stage (the quantitative phase), the psychometric properties of the developed scale were evaluated. Results Based on the results of the exploratory factor analysis and the verification process, the final version of the scale came to consist of 36 items and 6 dimensions. The dimensions were: professional competence, internal sources of motivation, challenging situational clinical setting, dynamic organizational atmosphere, reflection-based self-management, and dynamic professional growth. Overall, 6 factors accounted for 62.79% of the variances. The factor loadings of the items ranged between 0.62 and 0.94, all of which were significant. The total intraclass correlation (ICC) of the scale was found to be 0.94. Also, evaluation of the reliability of the scale as measured through internal homogeneity yielded a total Cronbach’s alpha of 0.90. Conclusion The findings show that the developed scale for evaluation of nursing students’ reflection on clinical practice possesses satisfactory validity and reliability, and nursing professors can use this instrument to assess students’ reflection skills.

Yes! Maximizers Maximize Almost Everything: The Decision-Making Style Is Consistent in Different Decision Domains

The decision-making literature distinguishes one maximizing style from another satisficing decision-making style, but it is unknown whether these styles remain stable or are variable depending on the occasion. One way to approach it is to verify eventual generalization of these styles in behavior of people in different decision domains. Some incipient results with University students from the United States and Austria suggest that these styles would remain in three different domains. However, it is unknown if this is the case in adults, other cultures, or vital areas of great relevance, such as health and personal finances. The objective here is to identify if Chilean Latin American participants of different sex and age maintain their decision-making style in five different decision domains. The sample was 343 volunteers, 52.6% men, from two regions of central-southern Chile (Maule and Ñuble), aged between 20 and 90 years (M = 45.47; SD = 16.05), who answered the Maximization Tendency Scale, and 45 items corresponding to five different decision domains: health, life decision, finances, services and experiences, and consumer's good. An apparent coherence of decision-making style—maximizing and satisficing—was obtained in the five domains. The health domain stands out for being the one in which it is maximized and with greater internal homogeneity.

The Influence of Returnable Material on Internal Homogeneity of the High-Pressure Die-Cast AlSi9Cu3(Fe) Alloy

Nowadays, high-pressure die-casting technology is an integral part of industrial production. High productivity, reduced machining requirements together with the low weight and advantageous properties of aluminium alloys form an ideal combination for the production of numerous components for various industries. The experimental part of the presented article focuses on the analysis of the change in the ratio of returnable material and commercial-purity alloy in a batch depending on the internal homogeneity of castings (microstructure, porosity and microhardness) from AlSi9Cu3(Fe) alloy. The use of returnable material in the batch is a key factor in achieving the maximum use of aluminium melt, which increases the economic efficiency of production and, last but not least, has a more favorable impact on the environment. Structural analysis showed that the increase in returnable material in the batch was visibly manifested in a change in the morphology of the eutectic Si. A negative change in the morphology of the eutectic Si particles was observed after increasing the returnable material content in the batch to 75%. The evaluation of porosity at control cuts showed the influence of the increase of returnable material in the batch, where the worst results were achieved by the alloy with 90% but also the one with 55% returnable material content in the batch.

Race, transnational militarism, and neocoloniality: The politics of the THAAD deployment in South Korea

This article explores the neglected connection between race and militarism by focusing on a US missile defense system deployed in South Korea. In September of 2017, the two countries installed the Terminal High Altitude Area Defense system in a rural village. Manufactured by Lockheed Martin, this missile defense system was to protect South Korea from attacks by North Korea. The system is integral to US global military strategy, but from the perspective of human security, its benefits are dubious at best. By drawing on a theory of the ‘racial state’ and critical studies of the US empire-state, the article examines two fundamental practices of the neocolonial military relation between the two states: wartime Operational Control of the South Korean military and extraterritoriality of US bases in South Korea. It argues that these neocolonial practices in which the Terminal High Altitude Area Defense system deployment is embedded reflect ‘the historicist racial ruling’ that denies self-rule for Koreans and its internalization by Koreans who support the unequal military relation. It also analyzes how the South Korean racial state promotes internal homogeneity and otherizes North Korea to bolster national security through the missile defense system.

Patterns and mechanisms underlying ecoregion delineation in North American freshwater plants

Aim: Biogeographical regionalisations are actively studied in different ecosystems, because they increase our understanding on fundamental broad-scale patterns and can help us in the establishment of conservation areas. Thus, we studied how well existing freshwater ecoregions describe geographical delineation for inland water plants and which ecogeographical gradients explain them. Location: North America, excluding Mexico and remote islands. Taxon: Freshwater vascular plants of all taxa and different functional groups. Methods: Using newly available fine-grained data on freshwater plant distributions, we calculated internal homogeneity and cross-boundary heterogeneity among neighbouring ecoregions. We further integrated measures of community dissimilarity to assess whether the degree of within-ecoregion homogeneity and distinctness are driven by their relationships to species replacements and richness differences, and explored how a complex suite of ecogeographical mechanisms and plant life forms affect ecoregion delineation using spatially explicit regression routines. Results: We found a clear geographical patterning of ecoregion robustness for North American freshwater plants, with their communities being more internally homogeneous and more similar to one another in polar and subtropical inland waters. Surprisingly, the degree of internal homogeneity and ecoregion distinctness were almost equally driven by species replacements and richness differences. Considering different life forms, ecoregion delineation performed best for emergent and floating-leaved plants. Finally, within-ecoregion homogeneity and distinctness were best explained by annual mean temperature and terrain ruggedness, respectively, with mean water alkalinity, ecoregion area and Late Quaternary Ice Age legacies having supplementary effects. Main conclusions: Our findings emphasise that geographical regionalisations founded on a particular organismal group are not applicable for all taxa. Our study is a promising starting point for further investigations of geographical delineations for different freshwater taxa. These updated regionalisations can then be used for conserving different biotas in freshwaters, which are currently among the most threatened ecosystems in the world.

Association of sleep disturbance with diabetic retinopathy

Purpose: Diabetes mellitus (DM) patients are more likely to experience sleep disturbances than normal. Sleep disturbances may contribute to the development of diabetic retinopathy (DR) by higher inflammatory markers in circulation. We investigated the association between sleep quality and DR. Methods: Institutional case control study with type 2 DM patients of <10 years duration and HbA1c ⩽8%; 70 cases with DR and 70 controls without DR (NODR) (power 0.8). Sleep quality was assessed by Pittsburg sleep quality index (PSQI) questionnaire and compared. Results: Cronbach’s alpha was 0.777 with high internal homogeneity. Global PSQI score in DR (7.44 ± 3.99; 95%CI 6.88, 9.42) was more than in NODR (4.30 ± 3.26; 95%CI 3.87, 6.45) ( p < 0.001). All sleep disturbance scores were more in DR except sleep duration. Poor sleep (PSQI score>5) was more prevalent in DR ( p = 0.000) and associated with increasing DR severity ( p = 0.026). Normal sleep latency was recorded in 78.57% and 42.85% patients in NODR and DR respectively ( p < 0.001). Severe difficulty in subjective sleep quality ( p = 0.024), sleep latency ( p = 0.002) and daytime dysfunction ( p < 0.001) was seen more in DR. Elevated daytime dysfunction was observed with increasing DR severity ( p = 0.008). The optimal cut-off for global PSQI score and sleep latency for DR was 5.5 (OR: 5.97; 95%CI 2.86, 12.47) and 25 min(OR: 4.89; 95%CI 2.32, 10.26) respectively. Conclusion: Sleep disturbance is positively associated with DR. Our study identifies cut off value for DR of a modifiable parameter like sleep latency. It emphasizes the need of sleep quality assessment for risk assessment of DR.

Psychometric Properties of the Sluggish Cognitive Tempo Scale in a Turkish Sample of Children and Adolescents

Sluggish Cognitive Tempo (SCT) has been proposed as a serious problem of attention, however there no validated psychometric measures for its evaluation in Turkish in a community sample. The present study aimed to examine the psychometric characteristics of the first SCT scale in Turkish in children and adolescents. A total of 418 children and adolescents between the ages of 6-18 years (9.83±2.8) were recruited. The data was obtained from parents using Sluggish Cognitive Tempo Scale and Strengths and Difficulties Questionnaire. The SCT scale-Turkish form demonstrated very good internal homogeneity (Cronbach’s α = .90), good test-retest reliability (r = .98), good concurrent validity ( r range = .35- .65) and good construct validity. Goodness of fit indices were found to be acceptable and statistically significant associations were found between SDQ and SCT scales. The SCT scale is a valid and reliable instrument in Turkish children and adolescents.

Cryptocurrencies as an asset class in portfolio optimisation

In this paper, cryptocurrencies are analysed as investment instruments. The study aims to verify whether they can be classified as an asset class and what kind of benefits they may bring to the investor's portfolio. We used 6 indices as proxies for the major asset classes, including the cryptocurrency index CRIX, for all cryptographic assets.Cryptocurrencies relatively fully satisfied 7 asset class requirements, namely stable aggregation, investability, internal homogeneity, external heterogeneity, expected utility, selection skill and cost-effective access. It was found that crypto assets have diversification properties. Portfolio optimisation with the Modern Portfolio Theory showed an increase in the Sharpe ratio of tangency portfolios with the inclusion of CRIX. However, the Post-Modern Portfolio Theory identified significant deterioration of the downside risk and the Sortino ratio.

Development and Psychometric Assessment of Triage Nurses' Professional Capability Questionnaire in Emergency Department

Background: Evaluation of triage nurses' professional capability is integral to identifying areas of professional development and nurses' educational needs, thus the need for valid instruments for assessment of professional capability. The present study aims to develop and measure the reliability and validity of a triage nurses' professional capability questionnaire. Methods: The present study is an exploratory work of research conducted in two stages: in the first stage (the qualitative phase), through conventional content analysis, the concept of professional capability in triage nurses was defined and the items of the questionnaire were developed. In the second stage (the quantitative phase), the psychometric properties of the questionnaire were assessed through analyses of its face validity, content validity, construct validity, internal homogeneity, and consistency. Results: The primary item pool contained 90 items while the final scale consisted of 35 items. The S-CVI/Ave of the questionnaire was found to be 0.96. An exploratory factor analysis showed the factor loading of the items to be between 0.478 and 0.897, all of which values were significant, and the three dimensions introduced in the main instrument were verified with acceptable values. The overall interclass correlation of the instrument was found to be 0.90. The reliability of the instrument was assessed in terms of its internal homogeneity where the Cronbach's alpha of the entire instrument was found to be 0.89. Conclusions: The results show that the questionnaire developed for assessment of triage nurses' professional capability is sufficiently reliable and valid and can be employed by nurse administrators toward evaluation of triage nurses' professional capability.