The Art of Cerebral Revascularization: An Illustrative Case Series of Bypass Techniques for Complex Intracranial Aneurysms.

BACKGROUND: Complex intracranial aneurysms (CIAs) comprise a subset of lesions with defiant vascular architecture, difficult access, and prior treatment. Surgical management of CIAs is often challenging and demands an assessment on a case-by-case basis. The generational evolution of bypass surgery has offered a long-standing potential for effective cerebral revascularization. Herein, we aim to illustrate a single-center experience treating CIAs. METHODS: The authors conducted a retrospective analysis of clinical records of patients treated with cerebral revascularization techniques at Hospital Nacional Dos de Mayo, Lima, Peru, during 2018-2022. Relevant data were collected, including patient history, aneurysm features on imaging, preoperative complications, the intraoperative course, aneurysm occlusion rates, bypass patency, neurological function, and postoperative complications. RESULTS: Seventeen patients (70.59% female; median age: 53 years) with 17 CIAs (64.7% saccular; 76.5% ruptured) were included. The most common clinical presentation included loss of consciousness (70.6%) and headaches (58.8%). Microsurgical treatment included first-, second-, and third-generation bypass. In 47.1% of cases, an anastomosis between the superficial temporal artery and the M3 segment was predominantly used, followed by an A3-A3 bypass (29.4%), a superficial temporal artery-M2 bypass (17.6%), and an external carotid artery to M2 bypass (5.9%). The intraoperative aneurysm rupture rate was 11.8%. Postoperative complications included ischemia (40%), cerebrospinal fluid fistulas (26.7%), and pneumonia (20%). At hospital discharge, the median Glasgow Coma Scale score was 14 (range: 10-15). At the 6-month follow-up, 82.4% of patients had a modified Rankin Scale score ≤2, bypass patency was present in all cases, and the morbidity rate was 17.6%. CONCLUSIONS: CIAs represent a spectrum of defiant vascular lesions with a poor natural history. Bypass surgery offers the potential for definitive treatment. Our case series illustrated the predominant role of cerebral revascularization of CIAs with a critical case-by-case approach to provide optimal outcomes in a limited-resource setting.

Validation of the Spanish Version of the Generic Conspiracist Beliefs Scale.

Theorists acknowledge that conspiracy beliefs represent an established psychological construct. The study of conspiracy beliefs is important because allied ideation potentially influences everyday attitudes and behaviors across a range of domains (i.e., cognitive, social, cross-cultural, and political psychology). In this article, we analyze the internal structure and construct validity of the Spanish adaptation of the Generic Conspiracist Beliefs Scale (GCBS). Correlational and confirmatory factor analyses using an international sample of 732 Spanish-speakers revealed a five-factor structure equivalent to the original instrument. Convergent validity was demonstrated using educational level, political orientation, need for uniqueness, and four social axioms (social cynicism, religiosity, reward for application, and fate control). In comparison to two English samples (N = 794 and N = 421), the adaptation demonstrated satisfactory, although restricted, levels of invariance. Accordingly, findings support the use of this translated form of the GCBS with Spanish speakers.

A Semi-Supervised Approach with Monotonic Constraints for Improved Remaining Useful Life Estimation.

Remaining useful life is of great value in the industry and is a key component of Prognostics and Health Management (PHM) in the context of the Predictive Maintenance (PdM) strategy. Accurate estimation of the remaining useful life (RUL) is helpful for optimizing maintenance schedules, obtaining insights into the component degradation, and avoiding unexpected breakdowns. This paper presents a methodology for creating health index models with monotonicity in a semi-supervised approach. The health indexes are then used for enhancing remaining useful life estimation models. The methodology is evaluated on two bearing datasets. Results demonstrate the advantage of using the monotonic health index for obtaining insights into the bearing degradation and for remaining useful life estimation.

Spanish Adaptation of the Left-Wing Authoritarianism Index.

Notwithstanding long-simmering controversies around the construct, several studies have gathered consistent evidence of authoritarian attitudes among left-wing voters and activists. Recently, Costello et al. (Clarifying the structure and nature of left-wing authoritarianism. Journal of Personality and Social Psychology, 2021) validated, in the English-speaking context, a three-factor scale to measure left-wing authoritarianism, as well as two shortened versions of the same scale (Costello & Patrick, Development and initial validation of two brief measures of left-wing authoritarianism: A machine learning approach, 2021; composed of 39, 25 and 13 items, respectively). In this article, we used three samples (total N = 2586) to validate the structural and construct validity of a Spanish adaptation of these three versions. The resulting scales exhibited an analogous three-factor structure, adequate internal consistency, and convergent and discriminant validity regarding sex, religion, moral exporting, conspiracy theories, social and economic conservatism, and right-wing authoritarianism.

Not so conservative: Suppression effects between social and economic ideology on moral foundations and moral absolutism.

Recent research outcomes suggest that social and economic conservatism show divergent associations with external criteria. In this article, we present a quantitative study with 534 Colombian participants. We found that, although positively correlated, these two dimensions of conservative ideology also exhibit suppression effects and differentiated psychological profiles regarding moral foundations and moral absolutism. Specifically, controlling for economic conservatism increased the positive association between social conservatism and the binding moral foundations and moral absolutism, while controlling for social conservatism changed the signs of the initial positive associations between economic conservatism and these variables. Our results suggest the need to use independent measures for each dimension of ideology and test for suppression when evaluating their respective interaction with other psychological constructs.

Validation of the Spanish Version of the Generic Conspiracist Beliefs Scale

Theorists acknowledge that conspiracy beliefs represent an established psychological construct. The study of conspiracy beliefs is important because allied ideation potentially influences everyday attitudes and behaviors across a range of domains (i.e., cognitive, social, cross-cultural, and political psychology). In this article, we analyze the internal structure and construct validity of the Spanish adaptation of the Generic Conspiracist Beliefs Scale (GCBS). Correlational and confirmatory factor analyses using an international sample of 732 Spanish-speakers revealed a five-factor structure equivalent to the original instrument. Convergent validity was demonstrated using educational level, political orientation, need for uniqueness, and four social axioms (social cynicism, religiosity, reward for application, and fate control). In comparison to two English samples (N = 794 and N = 421), the adaptation demonstrated satisfactory, although restricted, levels of invariance. Accordingly, findings support the use of this translated form of the GCBS with Spanish speakers. (AU)

Scalable Fleet Monitoring and Visualization for Smart Machine Maintenance and Industrial IoT Applications.

The wide adoption of smart machine maintenance in manufacturing is blocked by open challenges in the Industrial Internet of Things (IIoT) with regard to robustness, scalability and security. Solving these challenges is of uttermost importance to mission-critical industrial operations. Furthermore, effective application of predictive maintenance requires well-trained machine learning algorithms which on their turn require high volumes of reliable data. This paper addresses both challenges and presents the Smart Maintenance Living Lab, an open test and research platform that consists of a fleet of drivetrain systems for accelerated lifetime tests of rolling-element bearings, a scalable IoT middleware cloud platform for reliable data ingestion and persistence, and a dynamic dashboard application for fleet monitoring and visualization. Each individual component within the presented system is discussed and validated, demonstrating the feasibility of IIoT applications for smart machine maintenance. The resulting platform provides benchmark data for the improvement of machine learning algorithms, gives insights into the design, implementation and validation of a complete architecture for IIoT applications with specific requirements concerning robustness, scalability and security and therefore reduces the reticence in the industry to widely adopt these technologies.

Do as the Romans do: On the authoritarian roots of pseudoscience.

Recent research highlights the implications of group dynamics in the acceptance and promotion of misconceptions, particularly in relation to the identity-protective attitudes that boost polarisation over scientific information. In this study, we successfully test a mediational model between right-wing authoritarianism and pseudoscientific beliefs. First, we carry out a comprehensive literature review on the socio-political background of pseudoscientific beliefs. Second, we conduct two studies (n = 1189 and n = 1097) to confirm our working hypotheses: H1 - intercorrelation between pseudoscientific beliefs, authoritarianism and three axioms (reward for application, religiosity and fate control); H2 - authoritarianism and social axioms fully explain rightists' proneness to pseudoscience; and H3 - the association between pseudoscience and authoritarianism is partially mediated by social axioms. Finally, we discuss our results in relation to their external validity regarding paranormal and conspiracy beliefs, as well as to their implications for group polarisation and science communication.