Subsequent Behavior Research Articles

Visualization of stepwise electrode decomposition in a nail penetrated commercial lithium-ion cell using low-temperature synchrotron X-ray computed tomography

The transition towards zero carbon emissions in power generation hinges on the integration of efficient electrical energy storage systems, with lithium-ion batteries (LIBs) positioned as a pivotal technology. While generally safe, deviations in their operational guidelines due to manufacturing defects or misuse can lead to critical safety concerns, notably thermal runaway (TR) events. Internal short circuits (ISCs) are primary initiators of TR within LIBs. For abuse testing, ISCs are often triggered by nail penetration. This study explores the morphological changes and mechanisms underlying ISC-induced TR in LIBs using operando synchrotron X-ray computed tomography (SXCT) at subzero temperatures. A novel cryogenic setup was developed to control a stepwise temperature increase in the damaged sample while monitoring electrochemical characteristics and simultaneously enabling acquisition of high-resolution SXCT images. The findings reveal that conducting nail penetration at minus 80 °C prevents immediate TR, enabling detailed analysis of subsequent structural and electrochemical behavior during controlled thawing. Thus, the initiation of TR processes at localized ISC sites has been observed, evidenced by voltage fluctuations and morphological changes, such as cathode material cracking and decomposition. These results underscore the importance of temperature control in mitigating TR risks and provide critical insights into the internal dynamics of LIBs under abusive conditions. The developed cryogenic SXCT methodology offers a powerful tool for non-destructive, high-resolution investigation of battery failure mechanisms, contributing to the enhancement of LIB safety.

Understanding the role of exploitative leadership in inhibiting service innovative behavior: a moderated mediation model

Purpose The purpose of this study was to investigate how and when exploitative leadership hinders hospitality employees’ service innovative behavior. Based on the conservation of resource theory, the authors examined the mediating role of relational energy and the moderating impact of sensitivity to interpersonal mistreatment on this relationship. Design/methodology/approach Two-wave data collection from 54 hotel leaders and 266 subordinates in China resulted in 266 supervisor–subordinate matched data sets. Structural equation modeling analyses were used for data analysis. Findings Exploitative leadership is negatively related to hospitality employees’ service innovative behavior via diminished employee relational energy. Furthermore, employees with high sensitivity to interpersonal mistreatment experience intensified negative impact of exploitative leadership on relational energy and subsequent service innovation behavior. Research limitations/implications Hotel management must recognize and mitigate the effects of exploitative leadership to foster an environment conducive to service innovation. In addition, hotel managers should be attuned to the employees’ relational energy, recognizing its essential role in driving innovative behavior. Originality/value This research contributes insights into how exploitative leadership style impedes employee service innovation behavior. It further illuminates the role of relational energy as a critical mediator in this relationship.

Investigating the evolution of U-10Mo fuel foil microstructures during multi-stage hot rolling using coupled potts model-finite element method simulations

In this work, we study the microstructural evolution of U-10Mo foils over multiple stages of hot-rolling and reheating using our previously validated method coupling the Kinetic Monte Carlo Potts Model with the finite element method. Hot rolling and reheating refine the U-10Mo foil microstructure, but the relationships between the foil microstructure and recrystallization behavior over multiple successive reductions have complex relationships with the rolling schedule that have not yet been well quantified. Simulations were employed to forecast the impact of hot rolling reduction per pass, grain size variations, and uranium carbide (UC) distribution on the Johnson Mehl Avrami Kolmogorov (JMAK) recrystallization kinetics of the U-10Mo alloy, as well as it's post-rolling grain growth kinetics. Initial homogenized grain sizes varying from 100 µm to 1 mm and UC volume fractions ranging from 0 to 2 vol% were parametrically evaluated as a part of this study. While some of our simulation results support the findings of our previous analysis for conditions of single-pass rolling and annealing, our extended analysis shows that the grain size within the as-cast and homogenized foil can lead to significant changes in the in the distribution of strain within the final microstructure, which can slow grain coarsening over the final anneal. The magnitude of the hot rolling reduction per pass had a similarly strong impact on the distribution of strain within the foil microstructure and its subsequent grain growth behavior. The implications of these results on U-10Mo fuel foil fabrication procedures are discussed.

Communication: concept, essence, content

The article provides a theoretical analysis of the essence and content of communication, which, being an element of social interaction, ensures the transmission and exchange of information in various spheres of human activity. The analysis of linguistic, socio-psychological, activity, cultural, informational and semiotic approaches carried out in the article made it possible to understand the diversity of ideas about communication, to formulate a more complete idea of its essence and content. It also made it possible to identify inaccuracies and discrepancies in the understanding of the concept of communication, which is important for further development and clarification of the theoretical and applied aspects of this problem, and will also contribute to the development of recommendations on the formation of effective interaction and dialogue, reducing misunderstandings, avoiding conflicts and improving the quality of relations, including and legal. The article analyzes the key components of communication. Special attention is paid to its essence, which consists in creating and maintaining social relationships. It plays an important role in the formation of social consciousness, cultural identity and social integration. Communication ensures the coordination of actions and decision-making, promotes the exchange of knowledge and experience, as well as the formation of public opinion. Emphasis is placed on the fact that, by its very nature, it is a multifaceted and dynamic process, covering various aspects of interaction between people. Such interactions include verbal and non-verbal means of communication, emotional and rational components, and social and cultural contexts. It contributes to the preservation of cultural heritage and adaptation to changes in society. It is substantiated that the main purpose of communication is the transfer and exchange of information, knowledge, emotions and ideas to achieve mutual understanding. It was found that the content of communication includes informational, emotional, motivational and evaluative aspects. Informational content refers to facts, data, and knowledge that are conveyed during communication. The emotional aspect reflects the emotional state of subjects and affects their perception of information. The motivational aspect is related to the intentions and goals that drive communication. The evaluative aspect includes the evaluation of information and the reaction to it, which determines the course of communication and the subsequent behavior of subjects.

Modeling of the damage and fracture behaviors of a SiC triplex tube during the burst test with elastomeric insert

The Silicon Carbide (SiC) triplex cladding tube has been regarded as one of the leading structures for the next-generation light water reactors, because of its larger safety margins under beyond-design basis transient conditions. In this study, a numerical simulation method is developed to reproduce the damage and fracture behaviors of a nuclear-grade SiC triplex cladding tube during the burst test. Especially, a three-dimensional continuum damage mechanics based (CDM-based) constitutive model is developed and validated for the SiCf/SiC composites, with the predictions agreeing well with the experimental data under different loading conditions. By introducing cohesive surfaces in the monolithic layers of a SiC triplex tube, cracking of the monolithic layers and the subsequent local damage behaviors within the SiCf/SiC composite layer are captured. The local tensile strength of ∼402 MPa is identified for the monolithic layers, corresponding to the first load drop during the burst test. The simulation results indicate that cracking of the monolithic layers leads to sharp increases in the locally enhanced hoop stresses and damage factors for the SiCf/SiC composite layer, with slight influences on the field variables far away from the main crack; after the fast increase the evolution velocity of local damage factors slows down, reflecting the toughening effects of SiCf/SiC composite. An assessment strategy for the gas leak tightness and structural integrity of the SiC triplex cladding during the accident sceneries is proposed to predict failure of the SiCf/SiC composites with the critical damage factor, and it is necessary to simulate the damage and fracture behaviors in the multi-layer models with the cracking process of monolithic layers involved.

Does perceived vaping addiction predict subsequent vaping cessation behaviour among adults who use nicotine vaping products regularly?

BackgroundThis study aimed to investigate whether perceived vaping addiction is a predictor of quitting nicotine vaping product (NVP) use among adults who have ever smoked and currently vape exclusively or predominantly in four countries: Australia, Canada, the US, and England. MethodData analysed (n = 574) came from participants (aged 18 + ) who completed the International Tobacco Control (ITC) Four Country Smoking and Vaping survey in 2018 and again in 2020. Baseline inclusion criteria were: (1) currently not smoking or non-daily smoking; and (2) using NVPs daily/weekly for a period of at least 4 months. Association of self-reported baseline levels of perceived vaping addiction with making any attempts to quit vaping and successful attempts reported at follow-up were examined using logistic regression models, controlling for potential sociodemographic and smoking/vaping-related confounders. ResultsParticipants who perceived themselves as being addicted to vaping were less likely to attempt to quit vaping than those who perceived themselves as not addicted. Among those who tried, those who perceived themselves being addicted were also less likely to succeed than those who perceived themselves as not addicted. No significant country differences in associations were observed for both outcomes. ConclusionsPerceived vaping addiction was shown to have predictive utility for vaping cessation behaviours, possibly acting as an indicator of task difficulty, and thus may serve as a useful screening tool for identifying NVP users who may benefit from tailored cessation support programs if they want to stop using these products.

The more the better? Synergies of prosocial interventions and effects on behavioural spillovers

Incentivising prosocial and pro-environmental behaviours is a sensitive endeavour. While behavioural change is urgently needed to mitigate the consequences of climate change, monetary interventions often have negative side effects. Such interventions are prone to motivation crowding, which can impede lasting positive behavioural change and stimulate negative temporal spillovers to other prosocial behaviours. In this study, we investigate whether implementing monetary interventions as part of policy mixes can mitigate these negative side effects. In an online experiment involving 3782 participants, we test whether the use of nudges that make personal and social norms salient can counteract the motivation-crowding effect and explore the effects of such policy mixes on temporal spillovers. We find that policy mixes of norm-based nudges and monetary incentives are more effective at stimulating engagement in targeted prosocial behaviour than no intervention when controlling for sample characteristics. Analysing the temporal spillover effects of these interventions reveals that policy mixes can alleviate the tendency of monetary incentives to negatively affect subsequent prosocial behaviour. This indicates that norm-based nudges are suitable complements to monetary interventions, facilitating long-lasting positive effects.

The Impact of Green Purchase Intention on Compensatory Consumption: The Regulatory Role of Pro-Environmental Behavior

Green purchasing behavior refers to the potential of consumers to reduce the impact on the environment and the excessive loss of natural resources in the procurement process as far as possible under the premise of meeting their own needs. This behavior is not only helpful in alleviating environmental problems but also is an important way to achieve sustainable development. However, whether consumers will increase non-green or excessive compensatory consumption behaviors due to the “moral permission” psychological tendency, present after purchasing green products, is an important question in the current research. This study explores the effect of green purchase intention on compensatory consumption behavior, with special attention to the moderating role of pro-environmental behavior in this relationship. With the increasingly severe global environmental problems, green consumption, as a pro-environmental behavior, has gradually become the focus of social attention. By analyzing the relationship between consumers’ green purchase intention and their subsequent compensatory consumption behavior, this study further reveals the important role of pro-environment behavior in the consumption decision-making process.

Generalized Encoding of the Relative Subjective Value of Cognitive Effort in the Dorsal ACC.

Making choices about whether and when to engage cognitive effort are a common feature of everyday experience, with important consequences for academic, career, and health outcomes. Yet, despite their hypothesized importance, very little is understood about the underlying mechanisms that support this form of human cost-benefit decision-making. To investigate these mechanisms, we used the Cognitive Effort Discounting Paradigm (Cog-ED) during fMRI scanning to precisely quantify the neural encoding of varying cognitive effort demands relative to reward outcomes, within two distinct cognitive domains (working memory, speech comprehension). The findings provide strong evidence that the dorsal anterior cingulate cortex (dACC) plays a central and selective role in this decision-making process. Trial-by-trial modulations in dACC activation tracked the relative subjective value of the low-effort, low-reward option, with the strongest activity occurring when this was of greater value than the high-effort, high-reward option. In contrast, dACC activity was not modulated by decision difficulty, though such effects were found in other frontoparietal regions. Critically, dACC activity was also strongly correlated across the two decision-making task domains and further predicted subsequent choice behavior in both. Together, the results suggest that dACC activity modulation reflects a domain-general valuation comparison mechanism, which acts to bias participants away from decisions to engage in cognitive effort, when the perceived subjective costs of such engagement outweigh the reward-related benefits. These findings complement work in other cost domains and species by pointing to a clear role of the dACC in representing subjective value differences between choice options during cost-benefit decision-making.

How life events may confer vulnerability to addiction: the role of epigenetics.

Substance use disorder (SUD) represents a large and growing global health problem. Despite the strong addictive potency of drugs of abuse, only a minority of those exposed develop SUDs. While certain life experiences (e.g., childhood trauma) may increase subsequent vulnerability to SUDs, mechanisms underlying these effects are not yet well understood. Given the chronic and relapsing nature of SUDs, and the length of time that can elapse between prior life events and subsequent drug exposure, changes in SUD vulnerability almost certainly involve long-term epigenetic dysregulation. To validate this idea, functional effects of specific epigenetic modifications in brain regions mediating reinforcement learning (e.g., nucleus accumbens, prefrontal cortex) have been investigated in a variety of animal models of SUDs. In addition, the effects of epigenetic modifications produced by prior life experiences on subsequent SUD vulnerability have been studied, but mostly in a correlational manner. Here, we review how epigenetic mechanisms impact SUD-related behavior in animal models and summarize our understanding of the relationships among life experiences, epigenetic regulation, and future vulnerability to SUDs. Despite variations in study design, epigenetic modifications that most consistently affect SUD-related behavior are those that produce predominantly unidirectional effects on gene regulation, such as DNA methylation and histone phosphorylation. Evidence explicitly linking environmentally induced epigenetic modifications to subsequent SUD-related behavior is surprisingly sparse. We conclude by offering several directions for future research to begin to address this critical research gap.

Fluid depth-dependent biofilm characteristics and their influence on sulfate-reducing bacteria-induced corrosion of carbon steel

This study investigates the response of biofilm characteristics to variations in fluid depth and their influence on the corrosion behavior of carbon steel (C1020) under low-flow fluid conditions, utilizing Desulfovibrio vulgaris. The experiments were conducted in an anaerobic chamber at 30 °C, utilizing modified Baar's medium as the testing medium. The findings reveal that fluid depth significantly impacts biofilm-corrosion product composite formation, with deeper depths promoting thicker and more heterogeneous biofilm-corrosion product layer compared to shallower depths, where a thinner and more uniform biofilm-corrosion product layer is observed. Moreover, the characteristics of initially attached biofilms was verified as the primary factor affecting subsequent corrosion behavior during prolonged exposure. Corrosion analysis reveals that greater fluid depth leads to increased weight loss (91 ± 13.2 mg/cm2) and deeper pit depths (540 ± 69 μm), surpassing those observed in shallower test media (21 ± 2.3 mg/cm2 and 105 ± 17 μm) after 28 days of exposure. The corrosion products within the biofilm were predominantly FeS and Fe3(PO4)2·8H2O. A direct relationship was observed between the thickness of this biofilm-corrosion product layer and the progression of pit depth, suggesting a strong correlation between carbon steel corrosion and biofilm development in limited fluid depths (e.g., 5–15 mm). Furthermore, a significant association between the deepest pits (average) and the number of sessile cells within the biofilm underscores the pivotal role of sessile cell numbers in carbon steel corrosion.

Psychological Contracts: Changing Relational Levels, a Dynamic Model for a Changing Environment

This paper examines the issue of change in the relational level of employer-based psychological contracts. Based on prior research in Organizational Citizenship Behavior (OCB), Social Exchange Theory, and the Norm of Reciprocity, a dynamic model is developed to explain how contract-level changes take place within the relationship. The model also identifies subsequent employee attitudes and behaviors and offers two new relational modalities, “at risk” and “mercenary,” to explicate relational conditions that had not previously been recognized. We conclude by examining the various issues surrounding employee-employer relations and their importance to firm performance and job satisfaction.

Sleep Disturbance and Subsequent Suicidal Behaviors in Preadolescence

Suicide is a leading cause of death among adolescents, who demonstrate high rates of sleep disturbance. Poor sleep appears to confer risk for suicide, but longitudinal investigation of suicidal behaviors remains rare, particularly in the transition from childhood to early adolescence. To evaluate sleep disturbances in preadolescent children (aged 9 and 10 years) in association with longitudinal risk for suicidal ideation and suicide attempts at the 2-year follow-up. This cohort study used data from the Adolescent Brain Cognitive Development Study between June 2016 and January 2021. This dataset included children aged 9 or 10 years at baseline and their parents or caregivers who were recruited at 21 sites across the US. Data were analyzed July 2023 to June 2024. The Sleep Disturbance Scale for Children, a 26-item parent-reported inventory, was administered at baseline, generating a total score and 6 subscales. Central covariates included the Child Behavior Checklist Anxiety and Depression subscale and demographic variables. The computerized Kiddie Schedule for Affective Disorders and Schizophrenia (K-SADS-COMP) assessed parent- and youth-reported suicidal behaviors and outcomes (none; passive, active nonspecific, and active specific suicidal ideation; and suicide attempt) at the 2-year follow-up. Sleep disturbance was further grouped by symptom severity (minimal, moderate, elevated, high, and severe). Of the 10 136 youths who reported no baseline suicidal ideation or behavior, 8807 youths (mean [SD] age, 9.9 [0.6] years; 4507 males [51.2%]; 197 Asian individuals [2.2%], 1273 Black individuals [14.5%], and 5775 White individuals [65.6%]) completed the K-SADS-COMP assessment at the 2-year follow-up and were included in the analysis. At the follow-up, 8044 participants (91.3%) had no suicidal behavior, 317 (3.6%) had passive suicidal ideation, 258 (2.9%) had active nonspecific suicidal ideation, 130 (1.5%) had active specific suicidal ideation, and 58 (0.7%) had a first-time suicide attempt. Baseline sleep disturbance was associated with increased incidence risk for suicidal behavior at age 12 years (odds ratio, 2.68; 95% CI, 1.44-4.98; P = .002), adjusting for covariates. Individual subscales or items demonstrating associations with risk included disorders of excessive somnolence and frequency of nightmares. Results of this longitudinal cohort study revealed that disturbed sleep at age 10 years was associated with risk for suicidal thoughts and behaviors in the next 2 years. The findings highlight the potential importance of sleep as a visible risk factor and intervention target in the prevention of youth suicide.

Encounters with semantic violations do not interfere with immediately subsequent scene-viewing behavior

Encounters with semantic violations do not interfere with immediately subsequent scene-viewing behavior

Tensile Properties of Open Hole and Unhole Sugar Palm ‘Ijuk’ (SPI) Fibre Composite Treated with Sodium Hydroxide (NaOH)

This study evaluates the effects of sodium hydroxide (NaOH) treatment on tensile properties of sugar palm 'ijuk' (SPI) fibre-reinforced polymer (FRP) composites, with and without an open hole that acts as a stress concentrator. The NaOH treatment is aimed to improve the interfacial adhesion between SPI fibres and polymer matrix. Composite specimens were prepared using the hand lay-up method, incorporating SPI fibres in various orientations, and featuring a 6 mm diameter hole. Tensile tests were conducted to evaluate the mechanical performance of SPI FRP composite, including ultimate tensile strength, Young's modulus, and elongation at break. The research also compared the properties of SPI to those of synthetic glass fibre in fibre-reinforced polymer composites. The results showed that NaOH treatment significantly improves the fibre-matrix adhesion with 26% increase in tensile strength, leading to enhanced tensile properties in both samples, regardless of hole presence. The 0° orientation provides the highest strength and stiffness when the load is applied in the direction of the fibres. While for the 90° orientation, strength reduces by 14%. The impact of the hole on stress concentration and the subsequent mechanical behaviour of the open-hole specimens is substantial. The findings of this study offer insightful perspectives on the potential use ofNaOH-treated SPI fibre in structural and other applications, demonstrating its ability to withstand tensile stresses, even with geometric discontinuities like holes.

Rethinking Thin-Layer Chromatography for Screening Technetium-99m Radiolabeled Polymer Nanoparticles.

Thin-layer chromatography (TLC) is commonly employed to screen technetium-99m labeled polymer nanoparticle batches for unreduced pertechnetate and radio-colloidal impurities. Although this method is widely accepted, our findings applying radiolabeled PLGA/PLA-PEG nanoparticles underscore its lack of transferability between different settings and its limitations as a standalone quality control tool. While TLC profiles may appear similar for purified and radiocolloid containing nanoparticle formulations, their in vivo behavior can vary significantly, as demonstrated by discrepancies between TLC results and single-photon emission computed tomography (SPECT) and biodistribution data. This highlights the urgent need for a case-by-case evaluation of TLC methods for each specific nanoparticle type. Our study revealed that polymeric nanoparticles cannot be considered analytically uniform entities in the context of TLC analysis, emphasizing the complex interplay between nanoparticle composition, radiolabeling conditions, and subsequent biological behavior.

Learning & motivational talk in smoking cessation interventions: An examination of session language in two randomized trials

ObjectivesMotivational Interviewing (MI), a client-centered approach that seeks to evoke and resolve ambivalence, and health education (HE), which provides health information and advice, may both provide some benefit to unmotivated smokers. In HE, it is possible that client language reflective of new learning, or “learning talk” (LT), and rejection of health advice, or “rejection talk,” (RT), may uniquely reflect intent of subsequent behavior change. MethodsThis project utilized MI and HE sessions from two randomized clinical trials (RCTs), one in a low-income, diverse community civilian sample of 255 unmotivated smokers, and the other in a sample of Veterans with mental illness who were unmotivated smokers (n = 55).Mixed methods approaches were utilized to reliably code sessions using the Motivational Interviewing Skill Code 2.5 (MISC 2.5)1 and a refined Learning Talk coding system2. ResultsReliability of LT and RT codes ranged from fair to excellent (ICCs from 0.43–0.93). ConclusionLT appears to be a unique construct and its impact on post-session changes in smoking is warranted. Practice implicationsThis system can be used in a study to code existing interventions for smokers using both MI and HE techniques and relate in-session client LT to subsequent smoking behaviors.

Everyday conversations that impact health communication: developing and validating the everyday family health communication measure

ABSTRACT Research has shown that targeted, or episodic, conversations impact health behavior outcomes, like drinking, smoking, and sex, even later in life during emerging adulthood. However, little is truly known about families that engage in these episodic conversations. Research has speculated that the mundane everyday conversations may influence episodic communication and their subsequent behaviors. Therefore, steps were taken to better understand these everyday, or macro-level, health conversations. Study I operationalizes everyday family health communication that occurs within families to explore the if and why people subsequently engage in episodic health communication using a scale with 35 items developed from prior research. Participants (N = 163) completed a survey, which allowed for several factor analyses to narrow the measure down to 16 items. Study II validates the measure by examining the influence of everyday family health communication on targeted, episodic, health conversations, and health outcomes. Study II included 216 participants who responded to this new measure, as well as items pertaining to episodic communication (e.g. about alcohol or drug use) to assess the effects of everyday family health communication on episodic health communication within families. Results indicate that everyday family health communication was important in understanding family episodic communication about health behaviors and health behavior outcomes.

Evolving intra-and inter-session graph fusion for next item recommendation

Next-item recommendation aims to predict users’ subsequent behaviors using their historical sequence data. However, sessions are often anonymous, short, and time-varying, making it challenging to capture accurate and evolving item representations. Existing methods using static graphs may fail to model the evolving semantics of items over time. To address this problem, we propose the Evolving Intra-session and Inter-session Graph Neural Network (EII-GNN) to capture the evolving item semantics by fusing global and local graph information. EII-GNN utilizes a global dynamic graph to model inter-session item transitions and update item embeddings at each timestamp. It also constructs a per-session graph with shortcut edges to learn complex intra-session patterns. To personalize recommendations, a history-aware GRU applies the user’s past sessions. We fuse the inter-session graph, intra-session graph, and history embeddings to obtain the session representation for final recommendation. Our model performed well in experiments with three real-world data sets against its state-of-the-art counterparts.

Identifying Population Segments by Differing Levels of COVID-19 Vaccine Confidence and Evaluating Subsequent Uptake of COVID-19 Prevention Behaviors: Web-Based, Longitudinal, Probability-Based Panel Survey.

The COVID-19 pandemic prompted the launch of the US Department of Health and Human Services' COVID-19 Public Education Campaign to boost vaccine confidence and uptake among adults, as vaccines are key to preventing severe illness and death. Past segmentation research relevant to COVID-19 behavior has found important differences in attitudes, sociodemographics, and subsequent COVID-19 prevention behaviors across population segments. This study extends prior work by incorporating a more comprehensive set of attitudes, behaviors, and sociodemographic variables to identify population segments by differing levels of COVID-19 vaccine confidence and evaluate differences in their subsequent uptake of COVID-19 prevention behaviors. Data were obtained from 5 waves (January 2021 to June 2022) of a web-based longitudinal, probability-based panel survey of US adults (N=4398) administered in English and in Spanish. Participants were recruited from NORC at the University of Chicago's national AmeriSpeak panel and were invited to participate across multiple waves. Latent class cluster analysis estimated segments of respondents based on over 40 COVID-19 attitudes, beliefs, behaviors, and sociodemographics as reported in wave 1. Survey-weighted cross-tabulations and bivariate regression analyses assessed differences in COVID-19 vaccine uptake, booster uptake, mask use, and social distancing in all segments across all 5 survey waves. A total of 6 segments (hardline nonintenders, prevention-compliant nonintenders, burned-out waiters, anxious waiters, skeptical confidents, and ready confidents) were identified, which differed by their COVID-19 vaccine confidence, prevention-related attitudes and behaviors, and sociodemographics. Cross-tabulations and regression results indicated significant segment membership differences in COVID-19 vaccine and booster timing, mask use, and social distancing. Results from survey-weighted cross-tabulations comparing COVID-19 vaccine and booster uptake across segments indicate statistically significant differences in these outcomes across the 6 segments (P<.001). Results were statistically significant for each segment (P<.01 for booster uptake among burned-out waiters; P<.001 for all other coefficients), indicating that, on average, respondents in segments with lower intentions to vaccinate reported later receipt of COVID-19 vaccines and boosters relative to the timing of vaccine and booster uptake among ready confidents. Results extend previous research by showing that initial beliefs and behaviors relevant to COVID-19 vaccination, mask use, and social distancing are important for understanding differences in subsequent compliance with recommended COVID-19 prevention measures. Specifically, we found that across respondent segments, the probability of vaccine and booster uptake corresponded with both COVID-19 vaccine confidence and mask use and social distancing compliance; more compliant segments were more likely to get vaccinated or boosted than less compliant segments given similar levels of vaccine confidence. These findings help identify appropriate audiences for campaigns. Results highlight the use of a comprehensive list of attitudes, behaviors, and other individual-level characteristics that can serve as a basis for future segmentation efforts relevant to COVID-19 and other infectious diseases.