bluuebunny/crossref_metadata_2025_split huggingface dataset:
The biology of Marchantia polymorpha subsp. ruderalis Bischl. & Boissel. Dub in nature
Authors: Duckett Jeffrey G. , Pressel Silvia , Kowal Jill 
Published: May 2024

IntroductionThough used as the model liverwort in culture for several decades, the biology of Marchantia polymorpha subsp. ruderalis in nature has never been documented in detail in a single account.MethodsHere we synthesize routine field observations documented with hundreds of images of M. ruderalis colonies (or groups) showing sex differentiation over 3 years on two populations of M. ruderalis after major heathland fires in 2020.ResultsInitial post-fire establishment is from airborne spores rather than a spore bank but thereafter spread is via gemmae which have less exacting germination requirements. Young sporelings are highly gemmiferous but gemmae production becomes less frequent after sex organ formation. Over the course of a year there are up to three waves of carpocephalum production with the overwhelming majority of antheridiophores appearing 2-3 months ahead of the archegoniophores though no differences in growth rates were apparent between male and female thalli. Spermatozoids are produced almost continuously throughout the year, whilst sporophyte maturation is restricted to the summer months.DiscussionBecause of the asynchrony between antheridiophore and archegoniophore production a 1:1 sex ratio is only apparent over this period. The spring months see an excess of males with more females in the summer. An almost 100% fertilization rate, with fertilization distances of up to 19 m far exceeding those in all other bryophytes, is attributed to vast spermatozoid production for most of the year, dispersal on surface oil films between thalli and highly effective intra-thallus spermatozoid transport via the pegged-rhizoid water-conducting system. Archegoniophores do develop on female-only populations but have shorter stalks than those where fertilization has occurred. Eventual disappearance post fires is attributed to a fall in topsoil nutrient levels preventing new sporeling establishment and competition from Ceratodon purpureus and Polytrichum spp. A major drought in the summer of 2022 almost wiped out the heathland Marchantia populations but all the other bryophytes survived.
Nutrient enrichment, propagule pressure, and herbivory interactively influence the competitive ability of an invasive alien macrophyte Myriophyllum aquaticum
Authors: Huang Ru , Oduor Ayub M. O. , Yan Yimin , Yu Weicheng , Chao Chuanxin , Dong Lei , Jin Shaofei , Li Feng 
Published: May 2024

IntroductionFreshwater ecosystems are susceptible to invasion by alien macrophytes due to their connectivity and various plant dispersal vectors. These ecosystems often experience anthropogenic nutrient enrichment, favouring invasive species that efficiently exploit these resources. Propagule pressure (reflecting the quantity of introduced individuals) and habitat invasibility are key determinants of invasion success. Moreover, the enemy release hypothesis predicts that escape from natural enemies, such as herbivores, allows alien species to invest more resources to growth and reproduction rather than defense, enhancing their invasive potential. Yet, the combined impact of propagule pressure, herbivory, and nutrient enrichment on the competitive dynamics between invasive alien macrophytes and native macrophyte communities is not well understood due to a paucity of studies.MethodsWe conducted a full factorial mesocosm experiment to explore the individual and combined effects of herbivory, nutrient levels, propagule pressure, and competition on the invasion success of the alien macrophyte Myriophyllum aquaticum into a native macrophyte community comprising Vallisneria natans, Hydrilla verticillata, and Myriophyllum spicatum. This setup included varying M. aquaticum densities (low vs. high, simulating low and high propagule pressures), two levels of herbivory by the native snail Lymnaea stagnalis (herbivory vs no-herbivory), and two nutrient conditions (low vs. high). Myriophyllum aquaticum was also grown separately at both densities without competition from native macrophytes. ResultsThe invasive alien macrophyte M. aquaticum produced the highest shoot and total biomass when simultaneously subjected to conditions of high-density intraspecific competition, no herbivory, and low-nutrient availability treatments. Moreover, a high propagule pressure of M. aquaticum significantly reduced the growth of the native macrophyte community in nutrient-rich conditions, but this effect was not observed in nutrient-poor conditions. DiscussionThese findings indicate that M. aquaticum has adaptive traits enabling it to flourish in the absence of herbivory (supporting the enemy release hypothesis) and in challenging environments such as intense intraspecific competition and low nutrient availability. Additionally, the findings demonstrate that when present in large numbers, M. aquaticum can significantly inhibit the growth of native macrophyte communities, particularly in nutrient-rich environments. Consequently, reducing the propagule pressure of M. aquaticum could help control its spread and mitigate its ecological impact. Overall, these findings emphasize that the growth and impacts of invasive alien plants can vary across different habitat conditions and is shaped by the interplay of biotic and abiotic factors.
Patterns of occupational commitment among nurses: a latent profile analysis
Authors: Lin Zihan , Wu Wenbin , Zhang Huifang , He Zhiqiang , Han Mengyu , Li Jin 
Published: May 2024

BackgroundOccupational commitment (OC) is a multidimensional construct that predicts turnover intentions. The interindividual variability of nurses’ OC merits further exploration. Therefore, this study aims to examine patterns of OC and its relationship with psychological empowerment and job crafting in nurses.MethodsA sample of 1,061 nurses was recruited from February 2022 to April 2022 by using a stratified four-stage cluster sampling procedure. A self-report survey included the Psychological Empowerment Scale, Job Crafting Scale, and Occupational Commitment Scale. Latent profile analysis (LPA) was used to examine the patterns of OC. Associations of the latent class membership with individual characteristics, psychological empowerment and job crafting were examined using multinomial logistic regression.ResultsThree patterns of OC were identified: (1) “Low OC group” (n = 224, 21.1%); (2) “Moderate OC group” (n = 665, 62.7%); (3) “High OC group” (n = 172, 16.2%). Nurses with higher education, fewer years of service, working in medicine, lower psychological empowerment and lower job crafting had a higher likelihood of belonging to Class 1 (Low OC group). In contrast, nurses working in emergency and with higher psychological empowerment and job crafting were more likely to belong to Class 3 (High OC group).ConclusionThe findings revealed the heterogeneity of occupational commitment among nurses in China and could guide the identification and early intervention of nurses with low level of occupational commitment.
Coping methods of college students with different personality traits when facing COVID-19 from the anxiety psychology perspective
Authors: Fu Hai , Mao Yuyao , Tian Li 
Published: May 2024

ObjectiveBased on a survey of anxiety among college students during the epidemic, this study takes anxiety as an example to study the coping methods of college students with different personality traits. Thus predicting the behavioral tendencies of college students and proposing some appropriate suggestions for the current psychological education work of college students. Method: The study was carried out during the large-scale outbreak of the COVID-19 epidemic, and the investigation lasted one month. Using the Self Rating Anxiety Scale (SAS), Eysenck Personality Questionnaire Simplified Chinese Version (EPQ-RSC), and Trait Coping Style Scale (TCSQ), an online questionnaire survey was conducted on 932 college students to analyze the mutual effects of different grades, genders, personality traits, coping methods, and other factors.ResultsThe research found that there was a significant gender difference in negative coping methods and anxiety among college students. Grade differences: In the comparative study of personality traits, there are gender differences in introversion and concealment dimensions and grade differences in neuroticism and concealment dimensions. There is a pairwise correlation between personality traits, coping methods, and anxiety. There is a significant positive correlation between the dimensions of psychoticism, neuroticism and anxiety; There is a significant negative correlation between introversion, concealment, and anxiety. Positive coping methods are significantly negatively correlated with anxiety, while negative coping methods are significantly positively correlated with anxiety. The positive coping style is significantly negatively correlated with the dimensions of psychoticism and neuroticism and positively correlated with the dimensions of introversion, introversion, and concealment; Negative coping methods are significantly positively correlated with the dimensions of psychoticism and neuroticism and negatively correlated with the dimensions of introversion, introversion, and concealment.ConclusionThe research results indicate that the mental health issues of college students need to be taken seriously to prevent the spread of anxiety.
Antecedents of innovative behavior in public organizations: the role of public service motivation, organizational commitment, and perceived innovative culture
Authors: Lee Geon , Kim Chulwoo 
Published: May 2024

IntroductionThis study examines the dynamics of public service motivation (PSM), organizational commitment, and perceived innovative culture and their collective influence on innovative behavior in public organizations. It uniquely focuses on intrinsic motivational factors, extends the scope of motivational studies to the public sector, and highlights the crucial role of organizational culture in fostering innovation.MethodsA web-based survey was administered to 1,021 public servants in the central government of the Republic of Korea. Structured questionnaires were used to collect data, and structural equation modeling (SEM) was employed to analyze the relationships between the variables.ResultsThe SEM results confirmed positive correlations between PSM and both organizational commitment and innovative behavior. However, contrary to expectations, organizational commitment did not significantly predict innovative behavior. Additionally, no mediating effect of organizational commitment was observed. Notably, perceived innovative culture was found to moderate the relationship between PSM and organizational commitment, and between organizational commitment and innovative behavior, particularly in environments with a strong innovation focus.DiscussionThese findings underscore the significance of PSM in spurring innovative behavior in the public sector, broadening our understanding of intrinsic motivation. This study also accentuates the influence of organizational culture on these dynamics. In practical terms, this suggests the importance of nurturing individuals with high PSM and fostering an environment that balances perceived innovative culture. While contributing to the fields of organizational psychology and public administration, this study has certain limitations and indicates the need for further research in various contexts.
Mental health and conflict: a pilot of an online eye movement desensitisation and reprocessing (EMDR) intervention for forcibly displaced Syrian women
Authors: Hamid Aseel , Williams Amanda C. de C. , Albakri Muslihah , Scior Katrina , Morgan Sian , Kayal Hamodi , Wilcockson Matthew , Drouish Alkaja Rouba , Alsayed Sahbaa , Logie Robin , Farrand Shiraz , Abdul-Hamid Walid 
Published: May 2024

BackgroundThe Syrian conflict has been ongoing since 2011. Practical and scalable solutions are urgently needed to meet an increase in need for specialised psychological support for post-traumatic stress disorder given limited availability of clinicians. Training forcibly displaced Syrians with a mental health background to remotely deliver specialised interventions increases the availability of evidence based psychological support. Little is known about the effectiveness of online therapy for forcibly displaced Syrian women provided by forcibly displaced Syrian women therapists.PurposeTo pilot an evidence-based trauma therapy, Eye Movement Desensitisation and Reprocessing (EMDR), carried out online by trained forcibly displaced Syrian women therapists for forcibly displaced Syrian women who require treatment for post-traumatic stress disorder (PTSD).Methods83 forcibly displaced Syrian women, living in Türkiye or inside Syria, with diagnosable PTSD, were offered up to 12 sessions of online EMDR over a period of 3 months. This was delivered by forcibly displaced Syrian women therapists who were trained in EMDR. Data were gathered, using Arabic versions, on PTSD symptoms using the Impact of Events Scale Revised, depression symptoms using the Patient Health Questionnaire-9 and anxiety symptoms using the Generalised Anxiety Disorder Assessment-7 at baseline, mid-point, and end of therapy.ResultsPTSD scores, depression scores and anxiety scores all significantly reduced over the course of treatment, with lower scores at midpoint than baseline and lower scores at end of treatment than at midpoint. Only one participant (1%) exceeded the cutoff point for PTSD, and 13 (16%) exceeded the cutoff points for anxiety and depression at the end of treatment.ConclusionIn this pilot study up to 12 sessions of online EMDR were associated with reductions in PTSD, anxiety and depression symptoms in Syrian women affected by the Syrian conflict. The training of forcibly displaced Syrian mental health professionals to deliver online therapy is a relatively low cost, scalable, sustainable solution to ensure that those who are affected by the conflict can access specialised support. Further research is needed using a control group to confirm that the observed effects are due to EMDR treatment, as is research with post-treatment follow-up to ascertain that benefits are maintained.
Causal analysis of radiotherapy safety incidents based on a hybrid model of HFACS and Bayesian network
Authors: He Haiping , Peng Xudong , Luo Dashuang , Wei Weige , Li Jing , Wang Qiang , Xiao Qing , Li Guangjun , Bai Sen 
Published: May 2024

ObjectiveThis research investigates the role of human factors of all hierarchical levels in radiotherapy safety incidents and examines their interconnections.MethodsUtilizing the human factor analysis and classification system (HFACS) and Bayesian network (BN) methodologies, we created a BN-HFACS model to comprehensively analyze human factors, integrating the hierarchical structure. We examined 81 radiotherapy incidents from the radiation oncology incident learning system (RO-ILS), conducting a qualitative analysis using HFACS. Subsequently, parametric learning was applied to the derived data, and the prior probabilities of human factors were calculated at each BN-HFACS model level. Finally, a sensitivity analysis was conducted to identify the human factors with the greatest influence on unsafe acts.ResultsThe majority of safety incidents reported on RO-ILS were traced back to the treatment planning phase, with skill errors and habitual violations being the primary unsafe acts causing these incidents. The sensitivity analysis highlighted that the condition of the operators, personnel factors, and environmental factors significantly influenced the occurrence of incidents. Additionally, it underscored the importance of organizational climate and organizational process in triggering unsafe acts.ConclusionOur findings suggest a strong association between upper-level human factors and unsafe acts among radiotherapy incidents in RO-ILS. To enhance radiation therapy safety and reduce incidents, interventions targeting these key factors are recommended.
Long COVID awareness and receipt of medical care: a survey among populations at risk for disparities
Authors: Fisher Kimberly A. , Mazor Kathleen M. , Epstein Mara M. , Goldthwait Lydia , Abu Ghazaleh Hiba , Zhou Yanhua , Crawford Sybil , Marathe Jai , Linas Benjamin P. 
Published: May 2024

IntroductionThe COVID-19 pandemic has been characterized by disparities in disease burden and medical care provision. Whether these disparities extend to long COVID awareness and receipt of medical care is unknown. We aimed to characterize awareness of long COVID and receipt of medical care for long COVID symptoms among populations who experience disparities in the United States (US).MethodsWe conducted a cross-sectional survey among a national sample of US adults between January 26–February 5, 2023. We surveyed approximately 2,800 adults drawn from the Ipsos probability-based KnowledgePanel® who identify as White, Black, or Hispanic, with over-sampling of Black, Hispanic, and Spanish-proficient adults. Awareness of long COVID was assessed with the question, “Have you heard of long COVID? This is also referred to as post-COVID, Long-haul COVID, Post-acute COVID-19, or Chronic COVID.” Respondents reporting COVID-19 symptoms lasting longer than 1 month were classified as having long COVID and asked about receipt of medical care.ResultsOf the 2,828 respondents, the mean age was 50.4 years, 52.8% were female, 40.2% identified as Hispanic, 29.8% as Black, and 26.7% as White. 18% completed the survey in Spanish. Overall, 62.5% had heard of long COVID. On multivariate analysis, long COVID awareness was lower among respondents who identified as Black (OR 0.64; 95% CI 0.51, 0.81), Hispanic and completed the survey in English (OR 0.59; 95% CI 0.46, 0.76), and Hispanic and completed the survey in Spanish (OR 0.31, 95% C.I. 0.23, 0.41), compared to White respondents (overall p &lt; 0.001). Long COVID awareness was also associated with educational attainment, higher income, having health insurance, prior history of COVID-19 infection, and COVID-19 vaccination. Among those reporting symptoms consistent with long COVID (n = 272), 26.8% received medical care. Older age, longer symptom duration and greater symptom impact were associated with receipt of medical care for long COVID symptoms. Of those who received care, most (77.8%) rated it as less than excellent on a 5-point scale.DiscussionThis survey reveals limited awareness of long COVID and marked disparities in awareness according to race, ethnicity, and language. Targeted public health campaigns are needed to raise awareness.
Affiliate Stigma among family caregivers of individuals with dementia in China: a cross-sectional study
Authors: Shi Yingying , Dong Shishi , Liang Zhiqi , Xie Mengting , Zhang Hanyi , Li Sixie , Li Jufang 
Published: May 2024

BackgroundAffiliate stigma experienced by family caregivers of individuals with dementia may seriously affect home care and prognosis of these patients. This study aimed to explore the levels of perceived affiliate stigma and its influencing factors among family caregivers of patients with dementia in mainland China, which remains a relatively unexplored topic.MethodsIn this cross-sectional study, purposive sampling was used to recruit dementia family caregivers from an online communication group between April and May 2022. A total of 727 eligible caregivers were included and asked to complete the demographic questionnaire, the affiliate stigma scale, and the caregiver burden inventory. Descriptive statistics, independent sample t-test, one-way analysis of variance, Pearson correlation analysis, and multiple linear regression were used to explore the factors that influence perceived affiliate stigma among dementia family caregivers.ResultsThe mean score for affiliate stigma of dementia family caregivers was 48.09 ± 16.38 (range: 22–86). Whether there were regular breaks during patient care, time-dependent burden, developmental burden, physical burden, and social burden were significant factors influencing the affiliate stigma of dementia family caregivers.ConclusionDementia family caregivers showed a moderate to high level of affiliate stigma. Those who had regular breaks during patient care, higher time-dependent burden, developmental burden, and physical burden and lower social burden exhibited higher levels of affiliate stigma.
Association between Life’s Essential 8 and estimated pulse wave velocity among adults in the US: a cross-sectional study of NHANES 2011–2018
Authors: Fan Yang , Yang Sisi , Ruan Lei , Zhang Cuntai , Cao Ming 
Published: May 2024

BackgroundArterial stiffness, typically evaluated via estimated pulse wave velocity (ePWV), is believed to have a significant association with cardiovascular diseases. The objective of this study was to investigate the correlation between Life’s Essential 8 (LE8), a newly revised metric of cardiovascular health, and ePWV among adult population in the United States.MethodsThis research employed a cross-sectional methodology, drawing upon data from the National Health and Nutrition Examination Survey (NHANES) spanning from 2011 to 2018. To explore the relationship between LE8 and ePWV among adults in the US, both univariate and multivariate linear regression analyses were carried out. Additionally, the restricted cubic splines method was utilized to examine any non-linear correlation.ResultsThe study comprised 6,742 participants with an average age of 48.30 ± 0.35 years. Among these, 3,236 were males, representing a weighted percentage of 48%. The population’s weighted average LE8 score was 68.68 ± 0.37, while the average ePWV was 8.18 ± 0.04. An entirely adjusted model revealed a negative correlation between ePWV and LE8 scores [in the moderate LE8 group, coefficient − 0.17, 95% CI -0.28 to −0.06, p = 0.004; in the high LE8 group, coefficient − 0.44, 95% CI -0.56 to −0.32, p &lt; 0.0001]. This negative correlation was consistent with the findings in demographic subgroup analysis, with the effect size being more pronounced among adults under the age of 60, and individuals without hypertension, cardiovascular disease, or diabetes.ConclusionOur study reveals a negative correlation between LE8 and ePWV in the adult population of the US, suggesting that LE8 could potentially serve as an indicative marker for evaluating the risk of vascular stiffness. This inverse relationship is markedly stronger in adults below 60 years and those without diagnosed vascular diseases. This implies that lifestyle upgrades and risk factor management could be especially advantageous in curbing arterial stiffness within these groups. These conclusions underscore the importance of primary prevention in mitigating the risk of vascular aging in a relatively healthy group, emphasizing the significance of early intervention and risk factor management in cardiovascular disease.