Subsequent Action Research Articles

Enhanced Post-Movement Beta Rebound: Unraveling the Impact of Preplanned Sequential Actions

The Post-Movement Beta Rebound (PMBR) is the increase in beta-band power after voluntary movement ends, but its specific role in cognitive processing is unclear. Current theory links PMBR with updates to internal models, mental frameworks that help anticipate and react to sensory feedback. However, research has not explored how reactivating a preexisting action plan, another source for internal model updates, might affect PMBR intensity. To address this gap, we recruited 20 participants (mean age 18.55 ± 0.51; 12 females) for an experiment involving isolated (single-step) or sequential (two-step) motor tasks based on predetermined cues. We compared PMBR after single-step movements with PMBR after the first movement in two-step tasks to assess the influence of a subsequent action on the PMBR power associated with the first action. The results show a significant increase in PMBR magnitude after the first movement in sequential tasks compared to the second action and the isolated movements. Notably, this increase is more pronounced for right-hand movements, suggesting lateralized brain activity in the left hemisphere. These findings indicate that PMBR is influenced not only by external stimuli but also by internal cognitive processes such as working memory. This insight enhances our understanding of PMBR's role in motor control, emphasizing the integration of both external and internal information.

Strengthening person-centered care through quality improvement: a mixed-methods study examining implementation of the Person-Centered Care Assessment Tool in Zambian health facilities

Introduction Person-centered care (PCC) is considered a fundamental approach to address clients’ needs. There is a dearth of data on specific actions that HIV treatment providers identify as priorities to strengthen PCC. Objective This study team developed the Person-Centered Care Assessment Tool (PCC-AT), which measures PCC service delivery within HIV treatment settings. The PCC-AT, including subsequent group action planning, was implemented across 29 facilities in Zambia among 173 HIV treatment providers. Mixed-methods study objectives included: (1) identify types of PCC-strengthening activities prioritized based upon low and high PCC-AT scores; (2) identify common themes in PCC implementation challenges and action plan activities by low and high PCC-AT score; and (3) determine differences in priority actions by facility ART clinic volume or geographic type. Methods The study team conducted thematic analysis of action plan data and cross-tabulation queries to observe patterns across themes, PCC-AT scores, and key study variables. Results The qualitative analysis identified 39 themes across 29 action plans. A higher proportion of rural compared to urban facilities identified actions related to stigma and clients’ rights training; accessibility of educational materials and gender-based violence training. A higher proportion of urban and peri-urban compared to rural facilities identified actions related to community-led monitoring. Discussion Findings provide a basis to understand common PCC weaknesses and activities providers perceive as opportunities to strengthen experiences in care. Conclusion To effectively support clients across the care continuum, systematic assessment of PCC services, action planning, continuous quality improvement interventions and re-measurements may be an important approach.

Multidecadal vegetation transformations of a New Mexico ponderosa pine landscape after severe fires and aerial seeding.

Wildfires and climate change increasingly are transforming vegetation composition and structure, and postfire management may have long-lasting effects on ecosystem reorganization. Postfire aerial seeding treatments are commonly used to reduce runoff and soil erosion, but little is known about how seeding treatments affect native vegetation recovery over long periods of time, particularly in type-converted forests that have been dramatically transformed by the effects of repeated, high-severity fire. In this study, we analyze and report on a rare long-term (23-year) dataset that documents vegetation dynamics following a 1996 post-fire aerial seeding treatment and a subsequent 2011 high-severity reburn in a dry conifer landscape of northern New Mexico, USA. Repeated surveys between 1997 and 2019 of 49 permanent transects were analyzed for differences in vegetation cover, richness, and diversity between seeded and unseeded areas, and to characterize the development of seeded and unseeded vegetation communities through time and across gradients of burn severity, elevation, and soil-available water capacity. Seeded plots showed no significant difference in bare ground cover during the initial years postfire relative to unseeded plots. Postfire seeding led to a clear and sustained divergence in herbaceous community composition. Seeded plots had a much higher cover of non-native graminoids, primarily Bromus inermis, a likely contaminant in the seed mix. High-severity reburning of all plots in 2011 reduced native graminoid cover by half at seeded plots compared with both prefire levels and with plots that were unseeded following the initial 1996 fire. In addition, higher fire severity was associated with increased non-native graminoid cover and reduced native graminoid cover. This study documents fire-driven ecosystem transformation from conifer forest into a shrub-and-grass-dominated system, reinforced by aerial seeding of grasses and high-severity reburning. This unique long-term dataset illustrates that post-fire seeding carries significant risks of unwanted non-native species invasions that persist through subsequent fires-thus alternative postfire management actions merit consideration to better support native ecosystem resilience given emergent climate change and increasing disturbance. This study also highlights the importance of long-term monitoring of postfire vegetation dynamics, as short-term assessments miss key elements of complex ecosystem responses to fire and postfire management actions.

"Empowerment for Us by Us (E4UBU)": Developing a Model of Empowerment Using Feminist Participatory Methods with LBQT+ Persons Assigned Female at Birth in Western Kenya.

Lesbian, bisexual, queer, trans and other gender diverse persons assigned female at birth (heretofore referred to as "LBQT+ persons") in Western Kenya experience intersectional oppression and stigma. This stigma can manifest in acts of sexual and gender-based violence (SGBV) and sexual and gender minority (SGM)-based violence, as well as various forms of discrimination-all of which have been linked to disproportionately higher levels of negative health outcomes for this group. Despite these challenges, many LBQT+ persons have been able to gain personal and collective power and thrive in this oppressive environment. The Empowerment for Us by Us (E4UBU) project is a mixed methods feminist participatory research study focused on exploring how LBQT+ persons conceptualize and define empowerment for themselves, and to understand their perspectives on how feelings of power and powerlessness influence their physical and mental health. This paper focuses on data from the first phase of the study, in which qualitative in-depth interviews were conducted with 40 LBQT+ persons (ages 19 to 50) from Kisumu and Homa Bay in Western Kenya. A participatory interpretive phenomenological analysis was conducted to understand the lived experiences of LBQT+ persons as they navigate intersectional oppression and its influence on their experiences of empowerment and subsequent health outcomes. Findings from this analysis were presented to two different focus groups composed of participants who had participated in the in-depth interviews to gather their insights on the interpretations of the interviews as a form of member checking. Findings revealed that "empowerment" was not experienced and viewed by LBQT+ persons as a monolithic construct, but rather a process through which LBQT+ persons are able to transform negative forces of intersectional oppression and powerlessness into experiences of power and subsequent individual and collective action and impact-all leading to improved mental health and well-being. This process is facilitated at several junctures by participatory seeking and attainment of community-appropriate resources at multiple socio-ecological levels that, when accessed with sufficient intensity, frequency, and duration, enhance one's journey through the process of empowerment. These facilitation junctures are viewed as likely points of focus for public health intervention. Analysis also revealed that the process of empowerment is dependent on the context within which the process is occurring, the specific issues being faced, and the population of focus. Recommendations for how this model can be used for future research and practice to improve the lives of LBQT+ persons in Kenya are discussed.

HARNESSING THE POWER OF WORDS

The interplay between language and emotions is a captivating facet of human communication, underscored by the profound impact words wield in eliciting emotional responses. This exploration delves into the intricate mechanisms through which words have the power to evoke a spectrum of emotions, ranging from joy and empathy to anger and sadness. Drawing upon insights from psychology, neuroscience, and linguistics, this study delves into the cognitive processes and neural pathways involved in the emotional interpretation of words. It illuminates how factors such as semantics, syntax, and linguistic context contribute to the emotional resonance of language, shaping individual experiences and interpersonal interactions. Moreover, cultural norms and social contexts influence the emotional connotations of words, adding layers of complexity to their affective potency. This paper delves into the intricate interplay between words, emotions, and actions, exploring language's profound impact on shaping human experiences and behaviors. Recognizing words as potent conveyors of emotions, we delve into the psychological and physiological responses triggered by linguistic stimuli. Drawing on extensive research in linguistics, psychology, and neuroscience, we illuminate how specific words can elicit a spectrum of emotions, influencing individuals' cognitive processes and decision-making. Furthermore, we scrutinize the ripple effect of emotional language on subsequent actions, unraveling the dynamic relationship between verbal expression and behavioral outcomes. Through an interdisciplinary lens, this paper navigates the terrain of linguistic influence on social interactions, societal norms, and personal development. By understanding the nuanced connections between words, emotions, and actions, we aim to shed light on the transformative potential of mindful language use, paving the way for a more empathetic and intentional communication paradigm.

Merging Organolithium Chemistry and Stereoselective Biocatalysis: Transformation of Aromatic Nitriles into Chiral Alcohols

AbstractThe combination of RLi‐mediated organic transformations (under air and at room temperature) with a subsequent stereoselective biocatalytic reaction is for the first time presented. Most of the previous asymmetric chemoenzymatic routes have been limited to the concomitant or sequential combination of transition metals/organocatalysts with enzymes. However, the use of polar organometallic reagents (RLi) in the design of these stereoselective hybrid protocols has been totally neglected, as far as we are concerned. Thus, in this work, the combination of organolithium chemistry and asymmetric biocatalysis is described for the first time in a one‐pot fashion. The chemoenzymatic approach converts a series of nitriles into chiral alcohols consisting of two steps, where the key item was the finding of suitable conditions to adapt the reactivities of organolithiums and alcohol dehydrogenases (ADHs) in the same recipient. The organolithium addition occurred with total chemoselectivity (no side reactions were observed) under neat conditions and room temperature leading to the corresponding imines, which were hydrolyzed using a buffer, and adjusting the pH for the subsequent ADH action. Commercial and made in house overexpressed ADHs allowed to produce chiral alcohols with excellent selectivities and good overall yields. The different behavior displayed for the reductive enzymes in the presence of diethyl ether clearly influenced in the decision to let the organolithium solvent evaporate under open‐air conditions before developing the bioreduction step. Our results demonstrate the importance of the fine orchestration of the reaction conditions for the development of efficient hybrid chemoenzymatic cascades without the need of intermediate isolation/purification steps or compartmentalization of the different synthetic systems.

Comparative outcomes of AI-assisted ChatGPT and face-to-face consultations in infertility patients: a cross-sectional study.

With the advent of artificial intelligence (AI) in healthcare, digital platforms like ChatGPT offer innovative alternatives to traditional medical consultations. This study seeks to understand the comparative outcomes of AI-assisted ChatGPT consultations and conventional face-to-face interactions among infertility patients. A cross-sectional study was conducted involving 120 infertility patients, split evenly between those consulting via ChatGPT and traditional face-to-face methods. The primary outcomes assessed were patient satisfaction, understanding, and consultation duration. Secondary outcomes included demographic information, clinical history, and subsequent actions post-consultation. While both consultation methods had a median age of 34years, patients using ChatGPT reported significantly higher satisfaction levels (median 4 out of 5) compared to face-to-face consultations (median 3 out of 5; p < 0.001). The ChatGPT group also experienced shorter consultation durations, with a median difference of 12.5minutes (p < 0.001). However, understanding, demographic distributions, and subsequent actions post-consultation were comparable between the two groups. AI-assisted ChatGPT consultations offer a promising alternative to traditional face-to-face consultations in assisted reproductive medicine. While patient satisfaction was higher and consultation durations were shorter with ChatGPT, further studies are required to understand the long-term implications and clinical outcomes associated with AI-driven medical consultations. Key Messages What is already known on this topic: Artificial intelligence (AI) applications, such as ChatGPT, have shown potential in various healthcare settings, including primary care and mental health support. Infertility is a significant global health issue that requires extensive consultations, often facing challenges such as long waiting times and varied patient satisfaction. Previous studies suggest that AI can offer personalized care and immediate feedback, but its efficacy compared with traditional consultations in reproductive medicine was not well-studied. What this study adds: This study demonstrates that AI-assisted ChatGPT consultations result in significantly higher patient satisfaction and shorter consultation durations compared with traditional face-to-face consultations among infertility patients. Both consultation methods were comparable in terms of patient understanding, demographic distributions, and subsequent actions postconsultation. How this study might affect research, practice, or policy: The findings suggest that AI-driven consultations could serve as an effective and efficient alternative to traditional methods, potentially reducing consultation times and improving patient satisfaction in reproductive medicine. Further research could explore the long-term impacts and broader applications of AI in clinical settings, influencing future healthcare practices and policies toward integrating AI technologies.

Violation of identity-specific action-effect prediction increases pupil size and attenuates auditory event-related potentials at P2 latencies when action-effects are behaviorally relevant

Self-initiated sensory action effects are widely assumed to lead to less intense perception and reduced neural responses compared to externally triggered stimuli (sensory attenuation). However, it is unclear if sensory attenuation occurs in all cases of action-effect prediction. Specifically, when predicted action-effects are relevant to determine follow-up actions attenuation could be detrimental. We quantified auditory event-related potentials (ERP) in electroencephalography (EEG) when human participants created two-sound sequences by pressing two keys on a keyboard associated with different pitch, giving rise to identity-specific action-effect prediction after the first keypress. The first sound corresponded to (congruent) or violated (incongruent) the predicted pitch and was either relevant for the selection of the second keypress to correctly complete the sequence (Relevance) or irrelevant (Control Movement), or there was only one keypress and sound (Baseline). We found a diminished P2-timed ERP component in incongruent compared to congruent trials when the sound was relevant for the subsequent action. This effect of action-effect prediction was due to an ERP reduction for incongruent relevant sounds compared to incongruent irrelevant sounds at P2 latencies and correlated negatively with modulations of pupil dilation. Contrary to our expectation, we did not observe an N1 modulation by congruency in any condition. Attenuation of the N1 component seems absent for predicted identity-specific auditory action effects, while P2-timed ERPs as well as pupil size are sensitive to predictability, at least when action effects are relevant for the selection of the next action. Incongruent relevant stimuli thereby take a special place and seem to be subject to attentional modulations and error processing.

Increasing students' enthusiasm and learning outcomes in the application of warm-up variations in physical education

This study aims to increase students' enthusiasm and learning outcomes in learning Physical Education (PE), especially on physical fitness material, at SDN Pakis 1/368 Surabaya through the application of warm-up variations. The method used is Classroom Action Research (CAR) with a qualitative approach, with the research subjects being class 4A students. Data were collected through observation and learning outcome tests, and analyzed through the stages of planning, implementation, observation, reflection, and subsequent action. The results showed an increase in the average score of students' learning outcomes in the skill aspect from 81 in the initial stage to 89 in the second cycle, while in the attitude aspect from 80 to 90. The variety of warm-ups in PE learning has significantly improved students' enthusiasm and their learning outcomes. It is recommended that PE educators pay more attention to the integration of warm-up variations in learning to improve students' enthusiasm and overall learning outcomes.

Strategi NGO Lingkungan Greenpeace Indonesia Dalam Mendorong Transisi Energi Baru dan Terbaharukan (EBT) di Tengah Kontroversi Realisasi Net Zero Emission (NZE) 2060 di DKI Jakarta

Net Zero Emission (NZE) 2060 is a global program that start being realized by 197 countries including Indonesia, which is recommended to be implemented through the New and Renewable Energy (EBT) transition. Unfortunately, the process of realizing NZE 2060 being undertaken by the government for the DKI Jakarta area is currently being called by the Environmental Non-Government Organization (NGO) Greenpeace Indonesia as controversial because it places too much emphasis on electric vehicles compared to EBT. This research aims to analyze the strategy implemented by Greenpeace Indonesia in pushing EBT transition to accelerate the realization of NZE 2060 in DKI Jakarta. The research method used is a qualitative approach with a descriptive research type whose data was obtained through interviews and literature study. Results and research analysis show that since 2008 Greenpeace Indonesia's strategy has succeeded in having an influence in minimizing controversy and encouraging the use of EBT in DKI Jakarta. Before holding campaign activities or demonstrations, Greenpeace Indonesia always collects data through research as initial capital to determine the narrative that will be presented and subsequent actions. Greenpeace Indonesia also completes its strategy by introducing EBT directly to civil society communities to be a role model and increase community participation in the realization of NZE program. In conclusion, collaboration and synergy are needed between the government and environmental NGOs as a forum for civil society to smoothen the EBT transition and accelerate the realization of NZE 2060 program.

Employee perceptions of responses to toxic leadership in the modern workplace: a Q methodological study

PurposeThe purpose of this study is to explain why people respond to toxic leadership in different ways. The toxic triangle was applied as a lens and extended followership by investigating unsusceptible followers and susceptible followers.Design/methodology/approachThis study employed Q methodology to illustrate the subjective viewpoints of 31 employees. Participants sorted 41 statements ranging from “most uncharacteristic” to “most characteristic” according to their beliefs using a forced distribution. We used qualitative data from the survey and follow-up interviews to document participant motivations.FindingsFindings from this Q study demonstrated three distinct perceptions of responses to toxic leadership: Suffer in Silence (Perspective 1), Confront and Advocate (Perspective 2) and Quiet yet Concerned (Perspective 3). This study found that Perspectives 1 and 3 helped to explain differences in susceptible followership, whereas Perspective 2 helped to explain unsusceptible followership. Our research supports the need for organizations to provide safe whistleblowing channels for reporting unethical behavior by adopting clear policies for handling unethical behaviors and sharing those policies with all constituents within the organization.Practical implicationsOur research supports the need for organizations to provide safe whistleblowing channels for reporting unethical behavior by adopting clear policies for handling unethical behaviors and sharing those policies with all constituents within the organization.Originality/valueOur study adds to the developing literature on followership by building a conceptual framework for response types that better explains the motivation and subsequent actions of susceptible and unsusceptible followers. This framework helps us identify new ways to combat toxic leadership by providing a more nuanced view of how employees perceive and respond to toxic leadership.

The split ladder of policy problems, participation, and politicization: constitutional water change in Ecuador and Chile

There is debate about whether complex problems should be addressed technocratically or whether they should be politicized. While many tend to favour technocratic decision-making and evidence based policy, for others politicization of policy problems is fundamental for significant policy change. But politicization does not always lead to problem solving. Nor is it always necessary. This paper addresses the question: Under what circumstances should problems be politicized, and what is the effect of such politicization? It adds politicization, through windows of opportunity, to the split ladder of participation to assess policy change through two case studies: successful and unsuccessful constitutional change in Ecuador (2008) and Chile respectively (2022). It argues that where there is no agreement on either science or policy, politicization is required to address lack of consensus in values, but constitutional protection is needed to protect minorities and the vulnerable, their access and human right to water. De-politicization stymies policy change potentially harming democracy. This paper argues for a citizen engaged exploration of the complex problem of climate change and its impacts on water, but a targeted politicization coincident with, but developed well in advance of, windows of opportunity. Moreover, policy framing correlated with complex problems continues to be a key consideration. Furthermore, alliances of disparate actors, elections of new political leaders and considerations of property rights and justice issues are paramount. Significant constitutional policy change reflects social learning, but subsequent court actions by policy entrepreneurs is required to effectively implement this change. Framing constitutional change to protect rights to water and effect international agreements (including the Warsaw International Mechanism under the climate change regime) advances water justice and may increase success.

Evidence of half metal to insulator transition and subsequent photocatalytic action in g-C4N3@Lin =1 to 4: A systematic theoretical analysis

We report herein, emergence of photocatalytic action in Li doped two-dimensional nanosheet of graphitic carbon nitride [g-C4N3@Lin = 0-4]. Doping concentration varied from 3.57 % to 14.28 %. Pristine graphitic carbon nitride is half metallic and at the highest level of doping (14.28 %) it transforms into an insulating system. Observed results have been examined through the estimation of coupling between magnetic centers and the overall magnetic moment of the system. The exchange coupling (JAB) within Heisenberg–Dirac–van Vleck Hamiltonian being negative indicates antiferromagnetic coupling in presence of Li, doping. Related optical spectrum quite clearly illustrates that only at the doping level [14.28 %] the absorption peak is in the optical region. Band structure obtained illustrates a band gap of 1.92 eV and 1.93 eV in both spin channels and both oxidation and reduction potential falls within the band gap. The presence of reduction potential below the conduction band and oxidation potential above the valence band clearly illustrates the possibility of photocatalytic action.

Hydroxylamine production by Alcaligenes faecalis challenges the paradigm of heterotrophic nitrification

Heterotrophic nitrifiers continue to be a hiatus in our understanding of the nitrogen cycle. Despite their discovery over 50 years ago, the physiology and environmental role of this enigmatic group remain elusive. The current theory is that heterotrophic nitrifiers are capable of converting ammonia to hydroxylamine, nitrite, nitric oxide, nitrous oxide, and dinitrogen gas via the subsequent actions of nitrification and denitrification. In addition, it was recently suggested that dinitrogen gas may be formed directly from ammonium. Here, we combine complementary high-resolution gas profiles, 15 N isotope labeling studies, and transcriptomics data to show that hydroxylamine is the major product of nitrification in Alcaligenes faecalis . We demonstrated that denitrification and direct ammonium oxidation to dinitrogen gas did not occur under the conditions tested. Our results indicate that A. faecalis is capable of hydroxylamine production from an organic intermediate. These results fundamentally change our understanding of heterotrophic nitrification and have important implications for its biotechnological application.

Addressing the climate–finance interaction in a new light: From green to brown assets disclosure in the banking industry

AbstractThis paper explores the contribution of the banking industry to the decarbonization of the economy in the aftermath of the Paris Agreement. To this end, two complementary indicators are proposed: a carbon balance and a fossil fuel to equity ratio. The main novelty of these indicators is that, beyond traditional approaches in green finance, they take into account the parallel endeavor of banks in fossil fuel financing (so‐called “brown assets”). The results of the inquiry are presented in various maps and graphs. Both elements show that the bank‐induced process of decarbonization is lagging behind that of other industries, which creates a significant risk of financial instability. Changing this banking behavior necessarily involves a climate‐driven reform of the prudential rules on capital requirements; however, given the magnitude of the problem, this might not be enough. Nor is it the most urgent concern. Above all, what this paper makes clear is that the appropriate measurement and disclosure of financed emissions (both “green” and “brown”) is the first crucial step for the correct assessment of climate‐related risk and forms the basis for subsequent policy action.

Deep Transfer Learning-Based Automated Diabetic Retinopathy Detection Using Retinal Fundus Images in Remote Areas

Diabetic retinopathy (DR) significantly burdens ophthalmic healthcare due to its wide prevalence and high diagnostic costs. Especially in remote areas with limited medical access, undetected DR cases are on the rise. Our study introduces an advanced deep transfer learning-based system for real-time DR detection using fundus cameras to address this. This research aims to develop an efficient and timely assistance system for DR patients, empowering them to manage their health better. The proposed system leverages fundus imaging to collect retinal images, which are then transmitted to the processing unit for effective disease severity detection and classification. Comprehensive reports guide subsequent medical actions based on the identified stage. The proposed system achieves real-time DR detection by utilizing deep transfer learning algorithms, specifically VGGNet. The system’s performance is rigorously evaluated, comparing its classification accuracy to previous research outcomes. The experimental results demonstrate the robustness of the proposed system, achieving an impressive 97.6% classification accuracy during the detection phase, surpassing the performance of existing approaches. Implementing the automated system in remote areas has transformed healthcare dynamics, enabling early, cost-effective DR diagnosis for millions. The system also streamlines patient prioritization, facilitating timely interventions for early-stage DR cases.

Evaluation of Calcarenite Degradation by X-ray Photoelectron Spectroscopy Analysis inside the Rupestrian Church of San Pietro Barisano (Matera, Southern Italy)

We report on the XPS analysis of degraded surfaces inside San Pietro Barisano, the rupestrian church carved into the calcarenite rock of ancient Matera, which has been a UNESCO World Heritage Site since 1993. As reported in previous works, the “Sassi” district and the park of rupestrian churches were available as open laboratories for the National Smart Cities SCN_00520 research project dedicated to the sustainable recovery of this remarkable architectural heritage. In that context, XPS functionality was shown to reside in the possibility of analyzing surfaces by feasible sampling, acquiring spectra without any preliminary sample treatment, and processing data using a well-established curve fitting procedure. The obtained results allowed us to identify the degradation products of the investigated surfaces, thus contributing to defining a diagnostic framework for subsequent actions. Accordingly, the samples here considered, collected from the internal wall surfaces of the church, were all analyzed in comparison with the reference calcarenite, and the XPS results were evaluated as a function of local environmental factors and the historical context of the church itself. The final aim was to provide, for each sample, the most representative indicator(s) of biotic and/or abiotic degradation for reliable use, in a multidisciplinary context, in planning care interventions for building heritage.

Recycling and Implications for Neanderthal Productive Strategies in the Stratigraphic Unit viii of the El Salt Rockshelter (Alcoi, Eastern Iberia)

ABSTRACT Recycling was an activity carried out by ancient hunter-gatherer populations. It has been demonstrated by many studies on this matter. However, there are main issues in relation to it that are still under debate: what we call recycling, how we identify it, and what implications it has for the technoeconomic dynamics of these groups. In order to contribute to this topic, we present here the Neandertal flint materials from the stratigraphic unit viii of the El Salt rockshelter (Alcoi, Alacant, eastern Iberia). We have selected a series of artifacts exhibiting time-dependent postgenetic alterations (i.e. white patinas and thermal alteration) that affect previous technical intervention and, additionally, display subsequent anthropogenic actions that reveal an intermediate stage between the initial and the second use. The data obtained point to a principal relationship of recycling with mobility dynamics, and entail implications for Neandertal lithic technology and provisioning.

Being moral motivates consumers to work harder and accept challenges

ABSTRACT Research on sequential choice has extensively demonstrated moral licensing across traits such as fairness, compassion, and honesty; however, the impact of moral licensing on industriousness remains unexplored. To establish the robustness of moral licensing, diverse moral traits must be considered. This article explores moral licensing versus consistency in sequential behaviour paradigms, specifically focusing on industriousness across three experiments. Employing a single-factor between-subjects design, the first two experiments reveal that individuals engaged in moral activities are subsequently more likely than those who are not involved in moral activities to accept difficult tasks. The third experiment extends these findings, showing that those involved in moral activities are more inclined than those who are not involved in moral activities to choose products requiring effort. Moreover, it confirms the mediating role of positive moral identity in explaining the connection between past moral actions and subsequent industrious behaviours. In contrast to prior research, which emphasised the potential of moral behaviours leading to subsequent unethical actions, this study contributes to the moral licensing literature by demonstrating the positive influence of past moral actions on subsequent industrious behaviour.

Markov Decision Processes with Observation Costs: Framework and Computation with a Penalty Scheme

We consider Markov decision processes where the state of the chain is only given at chosen observation times and of a cost. Optimal strategies involve the optimization of observation times as well as the subsequent action values. We consider the finite horizon and discounted infinite horizon problems as well as an extension with parameter uncertainty. By including the time elapsed from observations as part of the augmented Markov system, the value function satisfies a system of quasivariational inequalities (QVIs). Such a class of QVIs can be seen as an extension to the interconnected obstacle problem. We prove a comparison principle for this class of QVIs, which implies the uniqueness of solutions to our proposed problem. Penalty methods are then utilized to obtain arbitrarily accurate solutions. Finally, we perform numerical experiments on three applications that illustrate our framework. Funding: J. Tam is supported by the Engineering and Physical Sciences Research Council [Grant 2269738].