Contemporary Research Research Articles

Revisiting Eysenck: The Association Between Personality and Acute Stress Reactivity

Eysenck’s biopsychological model of stress posits that the extraversion–introversion distinction is associated with different thresholds of arousal, which in turn moderate the stress response. Although higher thresholds of activation have been reported in the context of physiological stress induction, more contemporary research has resulted in mixed findings. The objective of the current study was to revisit Eysenck’s biopsychological model of stress by examining associations between the two personality dimensions (extraversion–introversion and neuroticism–stability) and stress reactivity in response to the Trier Social Stress Test. A total of 122 participants aged 18 to 80 years were recruited. Participants completed a battery of questionnaires, including a personality questionnaire, and were exposed to the TSST, during which salivary cortisol and galvanic skin responses (GSR) were recorded. People scoring higher on extraversion displayed heightened GSR relative to people scoring lower on extraversion. Furthermore, sex-based analyses suggest that this association was driven by females. No significant associations were found for cortisol or with respect to the neuroticism–stability dimension of personality. These findings highlight the need to take a more nuanced approach to investigating the association between personality and stress reactivity, highlighting the importance of the stress induction protocol and the stress-sensitive system under investigation.

Can Transcriptomics Elucidate the Role of Regulation in Invasion Success?

When a species invades a novel environment, it must bridge the environment-phenotype mismatch in its new range to persist. Contemporary invasion biology research has focused on the role that trait variation and adaptation, and their underlying genomic factors, play in a species' adaptive potential, and thus facilitating invasion. Empirical studies have provided valuable insights into phenotypes that persist and arise in novel environments, coupled with 'omics tools that further the understanding of the contributions of genomic architecture in species establishment. Particularly, the use of transcriptomics to explore the role of plasticity in the initial stages of an invasion is growing. Here, we assess the role of various mechanisms relating to regulation and functional adaptation (often measured via the transcriptome) that support trait-specific plasticity in invasive species, allowing phenotypic variability without directly altering genomic diversity. First, we present a comprehensive review of the studies utilising transcriptomics in invasion biology. Second, we collate the evidence for and against the role of a range of regulatory processes in contributing to invasive species plasticity. Finally, we pose open questions in invasion biology where the use of transcriptome data may be valuable, as well as discuss the methodological limitations.

Light-assisted functionalization of aryl radicals towards metal-free cross-coupling.

The many synthetic possibilities that arise when using radical intermediates, in place of their polar counterparts, make contemporary radical chemistry research an exhilarating field. The introduction of photocatalysis has helped tame aryl radicals, leading to a resurgence of interest in their chemistry, and an expansion of viable coupling partners and attainable transformations. These methods are more selective and safer than classical approaches, and they utilize new radical precursors. Given the importance of sustainability in current organic synthesis and our interest in light-assisted metal-free transformations, this Review focuses on recent advances in the use of aryl radicals in photoinduced cross-couplings that do not rely on metals for the crucial bond-forming event, and it is structured according to the key step that the aryl radicals engage in.

Coal structure evaluation and morphological properties that affect the coal usage in industries

AbstractThe contemporary research article is central to understanding coal structure evaluation and the morphological development impacting its utilization in different applications. Through Mineral Liberation Analysis (MLA) designs high content phyllosilicates minerals and swelling clay minerals were rationalized to provides a novel insight into enhanced coal beneficiation and the benefits of coal by-product re-utilization progressions that encourage safer environments and economic sustainability. This work commences with collection of five (5) different coal samples from the central district region in Botswana, sample characterization deploying Thermogravimetric coal analysis (TGA), x-ray fluorescence spectroscopy (XRF), x-ray diffraction (XRD), scanning electron microscopy (SEM) and the Hardgrove Grindability Index (HGI) test that was directed to quantification of the coal hardness and fracture toughness during milling. The cumulative objective was to understand the correlation that exists between the natural composition of the coal sample and their adaptation and application in various carbonaceous products. A solid connection was thus identified in the sulfur and phosphorus weight percentage inclusions in all the coal materials hence higher significance in sphalerite mineral phases (Zn, Fe) S critically increased the fracture toughness and hardness properties. Moreover, mineral amalgams intrinsic to the coal maceral such as aluminum oxides (Al2O3), silicate (SiO2), calcites (CaO), Iron oxide (Fe2O3), potassium feldspars (K − AlSi3O8), albite (Na − AlSi3O8), and anorthite (Ca − Al2Si2O8) compounds in alkali feldspars were detected in larger quantities. The coal industry has attracted much industrial attention to manufacturing foundations producing cement, ceramic tiles, paving bricks, and material synthesis and will continue to supply other economic sectors in the conceivable future. Graphical Abstract

Modeling of Heat Transfer and Airflow Inside Evacuated Tube Collector With Heat Storage Media: Experimental Validation Powered by Artificial Neural Network

ABSTRACTSolar air heater (SAH) is a widely employed technology for harnessing solar thermal energy in numerous applications. Contemporary research optimizes designs within identical spatial constraints to maximize energy output. However, there is a recognized need to conduct analytical validation to stimulate the experimental setup and formulate an artificial neural network (ANN) model to govern and predict the operation system. This investigation involved developing and assessing an evacuated tube solar air heater (ETSAH) integrated with annulus‐filled heat storage media. Furthermore, this study introduced an ANN model and analytical solution to predict performance parameters, representing a noteworthy contribution. The proposed ANN model achieved its optimal validation performance with a mean square error of 5.4018 × 10−6 after 11 epochs within 31 of training. Also, correlation findings show that the optimal architecture of a feed‐forward backpropagation is achieved when the 5‐40‐40‐40‐2 model architecture is used. In this case, there are five neural nodes in the input layer that represent timing, temperature, radiation, and airflow rate. The power output of the ETSAH device shows a strong correlation with the flow rate, reaching its peak at 0.05 kg/s with a value of 2261 W and dropping to 368 W at 0.006 kg/s. Correspondingly, the greatest energy efficiency was measured at airflow rates of 0.05, 0.01, and 0.006 kg/s, accounting for 48.38%, 27.32%, and 19.65%, respectively.

Dynamic or Static Goal Regulation: Implications of Weak and Strong Bonds Between Autonomous/Controlled Reasons and Aims for Achievement Goal Striving

Achievement goals have been key concepts for describing what motivates individuals in educational contexts. While achievement goals have often merely been conceptualized in terms of aspired end-states (aims of goal striving), contemporary research has proposed a more holistic perspective synthesizing these aims alongside autonomous versus controlled reasons derived from Self-Determination Theory into so-called achievement goal complexes. How these aims and reasons align is a matter of further discussion. An overview of empirical studies on goal complexes as well as associations between achievement goals and overarching goal systems reveals that aims differ in whether they show strong communality (static goal regulation) or rather high situational fluctuation regarding underlying reasons (dynamic goal regulation). Particularly, mastery aims show primarily strong bounds with autonomous reasons, whereas performance aims are more ambiguously aligned with underlying reasons. This has implications for the development of an overarching theory as well as for educational practice aiming to foster certain goals and goal complexes. Potential avenues for future research such as further investigations into goal valence, a broader set of aims, the impact of culture, and goal development are discussed.

Methodological Considerations for Studies Evaluating Bleeding Prediction Using Hemostatic Point-of-Care Tests in Cardiac Surgery

A certain proportion of patients undergoing cardiac surgery may experience bleeding complications that worsen outcomes. Numerous studies have investigated bleeding in cardiac surgery and some evaluate the role of hemostatic point-of-care tests in cardiac surgery patients. The prevalence of excessive bleeding varies in the literature, and such variability stems from the lack of a standardized definition of excessive bleeding. Herein, we report numerous definitions of excessive bleeding and methodological considerations for studies evaluating bleeding using hemostatic point-of-care tests in cardiac surgery patients. We evaluated the role of hemostatic point-of-care devices in contemporary research on bleeding complications and hemostatic management in cardiac surgery. The type of studies (prospective vs. retrospective, interventional vs. observational), patient selection (less complex vs. complex cases), as well as data analysis with comprehensive statistical considerations have also been provided. This article provides a comprehensive insight into the research field of bleeding complications in cardiac surgery and may help readers to better understand methodological flaws and how they influence current evidence.

Scratching the surface: Unveiling the complex interplay of itch and psoriasis through contemporary research

The long-lasting presence of itch is an unbearable symptom for people with psoriatic disease, having a profound effect on their quality of life. The itch experience in psoriasis is complex and multifaceted. It is underpinned by neuroimmune interactions, skin barrier dysfunction, and central sensitization pathways. While it has recently been realized that there are neuroimmune interactions in the pathophysiology of itch, tackling chronic itch still proves to be a challenge. The aim of this Perspective Article is two-fold: to assess the novel optimal management strategies for psoriasis-associated itch, while considering the mechanisms of itch in psoriasis and future directions for research.

Ayurvedic approach to managing Joint Disorders: Case Studies

Around the world, Bone and Joint-related disorders are common and can be extremely painful and impairing. Due to long-term disability and the high expense of surgical procedures, these conditions not only harm people's quality of life but also place a significant financial burden on them. Commonly Joint diseases like Sandhivata, Aamvata and Vatarakta have been mentioned in most classic Ayurvedic texts from ancient times. Another group of disorders known as Vatavyadhi assembles neuro-musculoskeletal conditions with varying etiopathogenesis. An Ayurvedic approach to disease classification involves arranging the various clinical conditions into a particular place, mainly based on their defining characteristics. Ayurvedic treatment offers a comprehensive and successful approach to managing joint disorders by reducing inflammation, improving range of motion, and promoting overall joint health and by integrating conventional knowledge with contemporary research, giving patients sustainable and natural relief and recovery. This article case report has been presented for every bone and joint-related disorder with their treatment protocol given in Ayurvedic Classics.

‘I promise to pay the bearer’: connecting present and past via a microhistorical examination of an 18th century banker’s diary

ABSTRACT The detailed methods and intense scrutiny of microhistorians have much to offer management and organization scholars and historians. However, traditional applications have placed certain limitations both on how widely applicable they can be and how they can be related to current preoccupations. This paper introduces the concept of a ‘back bearing’ which is designed to enhance the utility of microhistory in management and organization history in two ways. First, it offers a way of extending any period under review, linking the synchronic to the diachronic by locating a historical source which falls under a line traced backward from contemporary research. This opens up a wider range of historical periods for consideration while at the same time providing a method for justifying what is legitimately relevant. Second, by remaining true to the microhistorians’ focus on detailed scrutiny of individual sources otherwise left on the margins of history, it enables richer theoretical development linking past to present through the lives of individuals. In this case, a line taken from the study of 20th century banking practices back to the diary of an 18th century Edinburgh banker foregrounds what really matters to a banker who is quite literally under fire.

Understanding the influence of Manasika Bhavas on Stanya Kshaya: A Conceptual Study

Breast milk stands as the foremost source of nutrition in every individual's early life. According to Ayurveda, Stanya is considered an Upadhatu of Rasa and is pivotal for the nourishment and development of infants. Ayurveda defines decreased breast milk or lactation insufficiency as Stanya Kshaya, primarily attributed to emotions like anger, grief, and excessive affection, alongside dietary influences. Psychological factors such as emotional stress, anxiety, and maternal health also significantly impact milk production, necessitating both psychological and medical interventions. Any disruption in Agni affects Ahara Rasa, leading to disturbances in Rasa Dhatu, thereby affecting Stanya. Psychological aspects play a crucial role in the proper formation of Ahara Rasa. The significance of Manasika Bhavas lies in their advocacy of Soumanasya as a primary treatment for Ksheerajanana. This paper explores the correlation between psychological well-being and lactation outcomes, drawing on both contemporary psychological research and traditional Ayurvedic principles. Psychological stress, anxiety, depression, and maternal bonding are examined as key factors affecting hormonal balance and neuroendocrine pathways involved in lactation. Understanding these influences is crucial for holistic approaches to maternal health and breastfeeding support. The integration of psychological interventions alongside conventional medical treatments could enhance maternal lactation success rates and overall maternal-infant health outcomes. Thus, managing Stanya Kshaya requires thorough consideration of both psychological factors and dietary practices.

ICT Growth and the Fintech Boom: A Mismatched Capability Perspective from Nigeria

This article draws on both, dynamic capability theory and reviews of contemporary market research studies to assess the sustainability of Nigeria’s burgeoning fintech sector. It highlights the need for targeted education and training schemes to address a skills-driven, dynamic capability mismatch between larger and micro-enterprise employers in Nigeria’s organizational landscape. The talent pool of qualified candidates is limited, competition is intense, and the fintech boom has led to substantial emigration of the young and digitally skilled. Although unevenly distributed government efforts are evident, micro-employers have yet to benefit from these interventions.

Analogical Dialectics in Religious Language: Beyond Literal/Metaphorical Reductionism

This paper investigates the developmental trajectory of the debate concerning the nature of religious language, particularly the contrast between its literal and metaphorical dimensions, situating it within the broader context of linguistic, philosophical, and theological scholarship. Drawing on contemporary research, it offers a critical evaluation of three major approaches, with a detailed analysis of one in particular. The first two approaches, literalism and metaphoricism, are critiqued for their reductionist frameworks, which fundamentally erode the multifaceted nature of this discourse. The third approach, while avoiding these reductionist pitfalls, still calls for further clarification of the mechanisms underlying the interplay between these elements. Through conceptual analysis and grammatical examination, it demonstrates that this proposal, which posits a dynamic interaction—where neither dimension is subordinate to the other, but rather, they paradoxically coexist—yields a more accurate account. The findings suggest that this dialectical approach surpasses the conventional treatment of the literal–metaphorical nexus, proposing that religious language is not only communicative and comprehensible but also an evolving process in which grammatical perplexity fosters semantic depth and intellectual insight.

Depression and metabolic connectivity: insights into the locus coeruleus, HF-rTMS, and anxiety

The use of repetitive Transcranial Magnetic Stimulation (rTMS) in treating major depressive disorder (MDD) is increasingly being explored in precision medicine. However, there’s a notable lack of understanding of the underlying neurobiological effects, which limits our ability to correlate specific imaging features with treatment efficacy. As one possible neurobiological mechanism, clinical research has already shown that in MDD, lower norepinephrine release in the locus coeruleus (LC) triggers depressive symptoms, and pharmacological approaches that block norepinephrine reuptake boost its levels, easing depression. Surprisingly, the LC has not received a more pronounced focus in contemporary rTMS research. This study investigates the role of the LC in MDD and its response to high-frequency (HF)-rTMS using 18FDG-PET imaging. We compared LC metabolic connectivity between MDD patients (n = 43) and healthy controls (n = 32). Additionally, we evaluated the predictive value of LC connectivity for HF-rTMS treatment outcomes and examined post-treatment changes in LC metabolic connectivity. Our findings revealed significant differences in LC metabolic connectivity between MDD patients and controls. Baseline LC metabolic connectivity did not predict HF-rTMS treatment outcomes. However, post-treatment analyses showed a significant correlation between improved clinical outcomes and attenuation of LC metabolic connectivity in regions associated with cognitive control and the default mode network. Notably, a reduction in state anxiety moderated this relationship, highlighting the role of anxiety in HF-rTMS efficacy for MDD treatment. Our findings suggest that LC metabolic connectivity, influenced by state anxiety levels, may be crucial in HF-rTMS efficacy, offering further insights for personalized MDD treatment strategies.

Beyond "post," "traumatic," "growth," and prediction in research on posttraumatic growth.

Thirty years after the introduction of posttraumatic growth (PTG), research on the concept has expanded dramatically. Novel theoretical perspectives included in this special issue, however, demonstrate that nearly every element of PTG requires revision. "Post" implies a definitive before and after adversity that simply does not exist, either empirically or in the everyday navigation of adversity, especially for marginalized people. "Trauma" is appropriately scaled to the gravity of some forms of adversity, yet the term is often overly pathologizing or flattening of individual experience. And "growth" is often misleading, difficult to operationalize, and always value-laden. Studying PTG requires grappling with these claims in a way that can inspire pessimism. What is left in PTG after we question the P, T, and G? In asking this question, we ultimately encounter the limits of empiricism. Drawing insights from contemporary research in lifespan development, we suggest that it may be impossible to prospectively predict, using individual-level variables, how people grapple with adversity and develop after it. There are limits to our understanding of PTG that may simply be insurmountable. But complementary perspectives in narrative research, especially those espoused in this issue, as well as in the humanities and the arts, offer a way forward. Retrospectively understanding adverse events and taking an idiographic and qualitative perspective on the ways in which people navigate them can both humanize and bolster inclusivity in PTG research. We conclude by suggesting a period of enhanced divergent exploration, one that embraces disciplinary humility and epistemological and methodological pluralism to further understand PTG. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Bourdieu and early career researchers (ECRs) in disaster research: A collaborative autoethnography (CAE)

This collaborative autoethnography (CAE) by five emerging disaster researchers explores the transformative role of Bourdieu’s theories in the realm of disaster research. Despite the rapid expansion of disaster scholarship since the late 1970s, the field’s theoretical foundations and frameworks have been relatively underdeveloped. The authors, united by their engagement with Bourdieu’s work in their doctoral research, reflect on how his theories shaped their journeys into Critical Disaster Studies (CDS) scholars and propelled the advancement of disaster theories. The paper navigates the ambiguity and richness of Bourdieu’s concepts, illustrating how they are used beyond their original domains to find relevance in contemporary disaster research. Each author shares their unique pathway for encountering and applying Bourdieu’s theories, revealing a diverse spectrum of applications, from understanding symbolic violence in disaster contexts to analysing social vulnerability and resilience. Through this shared dedication, the authors aim to expand the horizon of social science disaster research and inspire others, especially early career researchers (ECRs), to engage profoundly with Bourdieu’s contribution to the field.

Аналіз проблеми розвитку психологічної компетентності у майбутніх фахівців з фізичної реабілітації в контексті сучасних психологічних досліджень

Psychological competence is critically important for professionals in the field of physical rehabilitation, as it contributes to the emotional and psychological well-being of patients throughout the rehabilitation process. Currently, there are no systematic studies on the development of psychological competence among physical rehabilitation specialists, although such studies could be useful in enhancing the effectiveness of rehabilitation interventions. Examining the psychological readiness of physical rehabilitation professionals can help improve relationships with patients, increase patient motivation and commitment to the therapeutic process, and enhance treatment outcomes. The aim of this study is to conduct a theoretical analysis of the development of psychological competence among future physical rehabilitation specialists in the context of contemporary psychological research and to identify factors influencing its development. The object of the study is the process of forming psychological competence in future physical rehabilitation specialists, while the subject is the contemporary psychological aspects of this process. To achieve this goal, an analysis of the current state of psychological competence development in future specialists is conducted, along with the identification of key aspects and training strategies that contribute to its formation. Understanding the psychological readiness of physical rehabilitation professionals can significantly improve the quality of patient care and enhance treatment effectiveness.

Synthetic Methodology, SAR and Pharmacology of Commercialized Preparations Employing 1, 2, 4‐Triazole Analogues

AbstractThe domain of medicinal chemistry has witnessed a notable surge of interest in triazoles owing to their unique structural characteristics and wide range of applications. The versatility of their synthesis methods has facilitated the creation of compound libraries with remarkable pharmacological activities, including antiviral, antiepileptic, anxiolytic, hypnotic/sedatives anticancer, antifungal, and antidepressant activities. Several techniques have been documented in the literature for generating 1,2,4‐triazole derivatives. The mechanisms governing the pharmacological effects of the formulations containing 1,2,4‐triazoles were elucidated and made clear. In addition to reviewing existing marketed formulations, this review explores emerging trends and innovations in this field. This review offers a comprehensive perspective on the importance of triazoles for influencing contemporary research, fostering innovation, and driving technological progress.

Ukrainian Waste for the Soviet Economy: Shaping the National Narrative

The environmental history of Ukraine in the twentieth century is replete with various and still understudied facets. However, contemporary research predominantly employs imperial narratives, which elucidate it through the prism of Soviet history, depriving it of subjectivity and the uniqueness of the local context. This essay proposes an alternative approach. Through the example of waste recycling in the Ukrainian SSR, which was one of the Soviet republics from 1922 to 1991, we aim to demonstrate the importance of reinterpreting its environmental history by studying multi-vector centre–periphery relations in the Soviet Union. This case seeks to demonstrate not only the formation in the 1920s of Soviet colonial practices of resource extraction, including that of waste, from the periphery – the Soviet republics – but also attempts to resist these in the first decade of the Soviet totalitarian regime’s formation. This essay is based on documents from Ukrainian archives, which are introduced into scholarly circulation for the first time, and on statistical collections of documents from the USSR.

Frequency Range Optimization for Linear Viscoelastic Characterization of Burger's Model

The linear viscoelastic behavior of materials is represented using mechanical models of choice, which are further utilized in different numerical investigations, such as finite element simulations and discrete element simulations. Burger's model is one of the widely adopted mechanical models and remains highly favored in contemporary research due to its multiple advantages. Specifically, it excels in representing long-term creep and stress relaxation behavior in a relatively simplified manner. Accurate identification of the long-term behavior for the viscoelastic material, particularly asphalt concrete, is crucial, as it serves as a key indicator of asphalt pavement performance over its service life. However, past research studies show that the parameters of Burger's model should be back-calculated from experimental data only within a limited range of frequency, otherwise, the parameters fail to represent the true material behavior. To the best of the authors’ knowledge, there is no approach for researchers to obtain the critical frequency range in which the experiments should be performed. Therefore, this study proposes a novel framework to find the critical frequency range to obtain appropriate model parameters of Burger's model, to better characterize the viscoelastic behavior of the materials. To examine the framework, asphalt concrete mixtures are used as examples in this study. Necessary laboratory tests including complex modulus tests and stress relaxation tests, are performed on two distinctive types of asphalt concrete mixtures. The generalized Maxwell model with different number of Maxwell chains are used to evaluate the performance of Burger's model. Furthermore, since commercially available finite element packages generally do not have a direct built-in Burger's model, the article shows a way of implementing Burger's model in finite element simulation. The simulations corresponding to the laboratory tests are carried out in both frequency domain and time domain to thoroughly evaluate the performance of Burger's model. The optimal frequency range of 0.1-20 Hz for the examined mixtures is found to significantly improve the accuracy of the descriptive master curve. The results also suggest that the generalized Maxwell model requires a minimum of four Maxwell chains to maintain good performance in accurately characterizing the behavior of asphalt mixtures. However, adding more Maxwell chains beyond a critical limit may not provide significant benefits. Finite element simulations demonstrate that the stress relaxation behavior predicted by the obtained Burger's model parameters aligns more closely with experimental data over longer time intervals. This makes Burger's model a strong choice for aiding in the design of simulations for studies focused on the long-term behavior of materials.