bluuebunny/crossref_metadata_2025 huggingface dataset:
Early detection of pine wilt disease tree candidates using time-series of spectral signatures
Authors: Yu Run , Huo Langning , Huang Huaguo , Yuan Yuan , Gao Bingtao , Liu Yujie , Yu Linfeng , Li Haonan , Yang Liyuan , Ren Lili , Luo Youqing
Published: October 2022

Pine wilt disease (PWD), caused by pine wood nematode (PWN), poses a tremendous threat to global pine forests because it can result in rapid and widespread infestations within months, leading to large-scale tree mortality. Therefore, the implementation of preventive measures relies on early detection of PWD. Unmanned aerial vehicle (UAV)-based hyperspectral images (HSI) can detect tree-level changes and are thus an effective tool for forest change detection. However, previous studies mainly used single-date UAV-based HSI data, which could not monitor the temporal changes of disease distribution and determine the optimal detection period. To achieve these purposes, multi-temporal data is required. In this study, Pinus koraiensis stands were surveyed in the field from May to October during an outbreak of PWD. Concurrently, multi-temporal UAV-based red, green, and blue bands (RGB) and HSI data were also obtained. During the survey, 59 trees were confirmed to be infested with PWD, and 59 non-infested trees were used as control. Spectral features of each tree crown, such as spectral reflectance, first and second-order spectral derivatives, and vegetation indices (VIs), were analyzed to identify those useful for early monitoring of PWD. The Random Forest (RF) classification algorithm was used to examine the separability between the two groups of trees (control and infested trees). The results showed that: (1) the responses of the tree crown spectral features to PWD infestation could be detected before symptoms were noticeable in RGB data and field surveys; (2) the spectral derivatives were the most discriminable variables, followed by spectral reflectance and VIs; (3) based on the HSI data from July to October, the two groups of trees were successfully separated using the RF classifier, with an overall classification accuracy of 0.75–0.95. Our results illustrate the potential of UAV-based HSI for PWD early monitoring.
Different grassland managements significantly change carbon fluxes in an alpine meadow
Authors: Xu Ganjun , Kang Xiaoming , Li Wei , Li Yong , Chai Yongyu , Wu Shengyi , Zhang Xiaodong , Yan Zhongqing , Kang Enze , Yang Ao , Niu Yuechuan , Wang Xiaodong , Yan Liang
Published: October 2022

Alpine meadow plays vital roles in regional animal husbandry and the ecological environment. However, different grassland managements affect the structure and function of the alpine meadow. In this study, we selected three typical grassland managements including free grazing, enclosure, and artificial grass planting and conducted a field survey to study the effects of grassland managements on carbon fluxes in an alpine meadow. The carbon fluxes were observed by static chamber and environmental factors including vegetation and soil characteristics were measured simultaneously. Our results show that the alpine meadow was a CO2 and CH4 sink, and grassland managements had a significant effect on all CO2 fluxes, including gross ecosystem production (GEP, P< 0.001), net ecosystem production (NEP, P< 0.001) and ecosystem respiration (ER, P< 0.001) but had no significant effect on CH4 fluxes (P > 0.05). The ranking of GEP under the different grassland managements was enclosure > free grazing > artificial grass planting. Furthermore, NEP and ER at enclosure plots were significantly higher than those of the free grazing and artificial grass planting plots. In addition, different grassland managements also affected the vegetation and soil characteristics of the alpine meadow. The aboveground biomass of artificial grass planting was significantly higher than that of the free grazing and enclosure plots. The vegetation coverage under three different grassland managements was ranked in the order of enclosure > artificial grass planting > free grazing and significant differences were observed among them. Moreover, significant differences in the number of species (P< 0.01) and the Margalef richness index (P< 0.05) were detected under three different grassland managements. Further analysis of the relationship between environmental factors and carbon fluxes revealed that GEP and NEP of the alpine meadow were positively correlated with vegetation coverage, the number of species, and the Margalef richness index. Therefore, grassland restoration should be configured with multiple species, which could improve carbon sink capacity while considering the functions of grassland restoration and production.
Versatile roles of polyamines in improving abiotic stress tolerance of plants
Authors: Shao Jinhua , Huang Kai , Batool Maria , Idrees Fahad , Afzal Rabail , Haroon Muhammad , Noushahi Hamza Armghan , Wu Weixiong , Hu Qiliang , Lu Xingda , Huang Guoqin , Aamer Muhammad , Hassan Muhammad Umair , El Sabagh Ayman
Published: October 2022

In recent years, extreme environmental cues such as abiotic stresses, including frequent droughts with irregular precipitation, salinity, metal contamination, and temperature fluctuations, have been escalating the damage to plants’ optimal productivity worldwide. Therefore, yield maintenance under extreme events needs improvement in multiple mechanisms that can minimize the influence of abiotic stresses. Polyamines (PAs) are pivotally necessary for a defensive purpose under adverse abiotic conditions, but their molecular interplay in this remains speculative. The PAs’ accretion is one of the most notable metabolic responses of plants under stress challenges. Recent studies reported the beneficial roles of PAs in plant development, including metabolic and physiological processes, unveiling their potential for inducing tolerance against adverse conditions. This review presents an overview of research about the most illustrious and remarkable achievements in strengthening plant tolerance to drought, salt, and temperature stresses by the exogenous application of PAs. The knowledge of underlying processes associated with stress tolerance and PA signaling pathways was also summarized, focusing on up-to-date evidence regarding the metabolic and physiological role of PAs with exogenous applications that protect plants under unfavorable climatic conditions. Conclusively, the literature proposes that PAs impart an imperative role in abiotic stress tolerance in plants. This implies potentially important feedback on PAs and plants’ stress tolerance under unfavorable cues.
Genetic variation for effects of drought stress on yield formation traits among commercial soybean [Glycine max (L.) Merr.] cultivars adapted to Ontario, Canada
Authors: Gebre Michael Gebretsadik , Rajcan Istvan , Earl Hugh James
Published: October 2022

Drought stress significantly limits soybean [Glycine max (L.) Merr.] yields in Ontario, Canada. Many studies of genetic variation for drought tolerance compare commercial lines with exotic, unadapted germplasm. We hypothesized that even current commercial cultivars adapted to Ontario would differ significantly for traits related to drought tolerance. In a greenhouse experiment, we grew fifteen soybean cultivars in field soil amended with sand in 1-m rooting columns, which allowed for simulation of field-like soil water profiles and rooting depths. Two watering treatments were imposed from the first flower until maturity by daily restoration of soil water to either 100% (control), or 50% (drought stress) of the maximum soil water holding capacity. Throughout the experiment, we measured volumetric soil water content at different depths in the soil profile, but found no evidence at any developmental stage that the cultivars differed for their ability to extract soil water from different depths. Drought stress reduced seed yield by 51% on average. Similar to the effects of drought in the field, pod number was the yield component most affected, with effects on seeds per pod and single-seed weight being comparatively minor. There were significant cultivar × treatment interactions for seed yield, pod number, shoot dry matter, and water use. We identified two drought-sensitive (Saska and OAC Drayton) and three drought-tolerant (OAC Lakeview, OAC Champion, and PRO 2715R) cultivars based on their ratios of seed yield under drought stress to seed yield under control conditions (seed yield ratio, SYR). Regression and principal component analyses revealed that drought-tolerant (high-SYR) cultivars were consistently those that maintained relatively high values for water use, biomass accumulation and pod number under drought stress; high water use efficiency under drought stress was also associated with a high SYR. One of the cultivars, OAC Lakeview, displayed a distinct mode of drought tolerance, maintaining a very high fraction of its control pod number under drought stress. This study helps define the physiological basis of soybean cultivar differences in drought tolerance, and provides direction for soybean breeders to select traits that could improve yield under drought stress.
Fruit nutritional composition, antioxidant and biochemical profiling of diverse tomato (Solanum lycopersicum L.) genetic resource
Authors: Raza Bushra , Hameed Amjad , Saleem Muhammad Yussouf
Published: October 2022

Tomato is the second most important vegetable crop consumed globally, by the virtue of its antioxidant-rich phytochemicals and bioactive compounds. Identifying genotypes with high antioxidant capacities and nutritionally rich phytochemicals is imperative for improving human health. The present study aimed to analyze 21 antioxidant and nutritional compounds in 93 geographically diverse, high yielding, better quality, stress tolerant tomato genotypes (hybrids, parental lines, inbred lines, and advanced lines). Significant variation (p < 0.05) was detected for investigated traits among the tested genotypes. Principal component analysis revealed the hybrids NIAB-Jauhar, Iron-lady F1, NBH-258, Ahmar F1, NIAB-Gohar, the parents H-24, B-25, AVTO1080, Astra and AVTO1003, as well as the lines LBR-17, AVTO1315, AVTO1311 and Lyp-1 revealed superior performance for the traits such as chlorophylls, lycopene, total carotenoids, total antioxidant capacity, total oxidant status, protease, alpha-amylase and total flavonoid content. Whereas the hybrids Surkhail F1, NBH-204, NBH-229, NBH-151, NBH-196, NBH-152, NBH-261, NBH-228, NIAB-Jauhar, NBH-256 and NBH-255, the lines 21354, AVTO1315, Newcherry, LA4097, AVTO1311 and UAF-1 together with the parents Naqeeb, NCEBR-5, M-82 and LBR-10 exhibited significant contribution to the traits such as total soluble sugars, reducing sugars, malondialdehyde, ascorbic acid, esterase, peroxidase and superoxide dismutase. Moreover, the semi-determinate and determinate tomato genotypes together with the categories parent and line with positive factor scores of 3.184, 0.015, 0.325 and 0.186 in PC- I, exhibited better performance for the trait such as total chlorophylls, lycopene, total carotenoids, total oxidant status, protease, alpha-amylase, total antioxidant capacity, esterase and total flavonoid content. Whereas again the semi-determinate and indeterminate tomato genotypes along with the category hybrid with positive factor scores of 2.619, 0.252 and 0.114 in PC- II, exhibited better performance for the traits such as total soluble sugars, reducing sugars, chlorophyll b, malondialdehyde content, ascorbic acid, superoxide dismutase and peroxidase. Hybrid vigor was observed in the hybrids for investigated traits. The aforementioned tomato genotypes showing outstanding performance in the respective traits can be exploited in the breeding programs to improve nutritional quality of tomato that can further improve human health.
WGCNA analysis revealing molecular mechanism that bio-organic fertilizer improves pear fruit quality by increasing sucrose accumulation and reducing citric acid metabolism
Authors: Wang Zhonghua , Yang Han , Ma Yanwei , Jiang Gaofei , Mei Xinlan , Li Xiaogang , Yang Qingsong , Kan Jialiang , Xu Yangchun , Yang Tianjie , Lin Jing , Dong Caixia
Published: October 2022

It’s been long known that the application of organic fertilizer (OF) and bio-organic fertilizer (BF) which containing beneficial microorganisms to pear trees can both significantly improve fruit quality and yield. In order to reveal the mechanism of BF and OF regulating fruit growth and quality in pear, the effects of BF and OF on the photosynthetic characteristics and the accumulation of major sugars and organic acids of the pear fruit were quantified compared with chemical fertilizer (CF). Additionally, the molecular mechanisms regulating pear fruit development and quality were studied through transcriptome analysis. The three treatments were conducted based on the same amounts of nitrogen supply. The results showed that compared with CF, BF and OF treatments increased the fruit yield, and also significantly improved the photosynthesis efficiency in pear. BF and OF both significantly increased the sucrose content but significantly decreased the fructose and glucose content within the pear fruit. The amount of malic acid was significantly higher in OF treatment. Compared with CF and OF, BF significantly increased the sugar-acid ratio and thus improved the fruit quality. Transcriptome analysis and weighted correlation network analysis (WGCNA) revealed that the sugar metabolism of fruits applied with the BF was enhanced compared with those applied with CF or OF. More specifically, the expression of SDH (Sorbitol dehydrogenase) was higher in BF, which converts sorbitol into fructose. For both of the OF and BF, the transcript abundance of sugar transporter genes was significantly increased, such as SOT (Sorbitol transporter), SUT14 (Sugar transport 14), UDP-GLUT4 (UDP-glucose transporter 4), UDP-SUT (UDP-sugar transporter), SUC4 (Sucrose transport 4), SUT7 (Sugar transporter 7), SWEET10 and SWEET15 (Bidirectional sugar transporter), which ensures sugar transportation. The genes involved in organic acid metabolism showed decreased transcripts abundance in both BF and OF treatments, such as VAP (Vesicle-associated protein) and cyACO (Cytosolic aconitase), which reduce the conversion from succinate to citric acid, and decrease the conversion from citric acid to malic acid in the TCA cycle (Tricarboxylic Acid cycle) through Pept6 (Oligopeptide transporter). In conclusion, the application of BF and OF improved fruit quality by regulating the expression of sugar and organic acid metabolism-related genes and thus altering the sugar acid metabolism. Both BF and OF promote sucrose accumulation and citric acid degradation in fruits, which may be an important reason for improving pear fruit quality. The possible mechanism of bio-organic fertilizer to improve fruit quality was discussed.
Three amino acid residues are required for the recognition of Ralstonia solanacearum RipTPS in Nicotiana tabacum
Authors: An Yuyan , Chen Jialan , Xu Zhangyan , Ouyang Xue , Cao Peng , Wang Rongbo , Liu Peiqing , Zhang Meixiang
Published: October 2022

Ralstonia solanacearum causes devastating diseases in a wide range of economically important crops. It secretes a large number of virulence factors, also known as effectors, to promote its infection, and some of them are recognized when the host plant contains corresponding resistance genes. In this study we showed that a type III effector RipTPS from the avirulent R. solanacearum strain GMI1000 (RipTPSG) specifically induced cell death in Nicotiana tabacum, but not in Nicotiana benthamiana, whereas the RipTPS homolog in the virulent strain CQPS-1 (RipTPSC) induced cell death in neither N. tabacum nor N. benthamiana. These results indicated that RipTPSG is recognized in N. tabacum. Expression of RipTPSG induced upregulation of hypersensitive response (HR) -related genes in N. tabacum. The virulence of CQPS-1 was reduced when RipTPSG was genetically introduced into CQPS-1, further confirming that RipTPSG functions as an avirulence determinant. Protein sequence alignment indicated that there are only three amino acid polymorphisms between RipTPSG and RipTPSC. Site-directed mutagenesis analyses confirmed that the three amino acid residues are jointly required for the recognition of RipTPSG in N. tabacum. Expression of either RipTPSG or RipTPSC suppressed flg22-triggered reactive oxygen species (ROS) burst in N. benthamiana, suggesting that RipTPS contributes to pathogen virulence. Mutating the conserved residues in RipTPS’s trehalose-phosphate synthase (TPS) domain did not block its HR induction and defense suppression activity, indicating that the TPS activity is not required for RipTPS’s avirulence and virulence function.
Transcriptome analysis of Harumi tangor fruits: Insights into interstock-mediated fruit quality
Authors: Liao Ling , Li Yunjie , Bi Xiaoyi , Xiong Bo , Wang Xun , Deng Honghong , Zhang Mingfei , Sun Guochao , Jin Zhenghua , Huang Zehao , Wang Zhihui
Published: October 2022

Harumi tangor fruit with Ponkan as an interstock contains significantly higher levels of total soluble solids compared to Harumi tangor fruit cv.with no interstock. Transcriptome analysis of two graft combinations (Harumi/Hongjv (HP) and cv. cv.Harumi/Ponkan/Hongjv (HPP)) was conducted to identify the genes related to use of the Ponkan interstock. Soluble sugars and organic acids were also measured in the two graft combinations. The results showed that the contents of sucrose, glucose, and fructose were higher in the fruits of HPP than in those of HP; additionally, the titratable acid levels were lower in grafts with interstocks than in grafts without interstocks. Transcriptome analysis of HPP and HP citrus revealed that the interstock regulated auxin and ethylene signals, sugar and energy metabolism, and cell wall metabolism. Trend and Venn analyses suggested that genes related to carbohydrate-, energy-, and hormone-metabolic activities were more abundant in HPP plants than in HP plants during different periods. Moreover, weighted gene co-expression network analysis demonstrated that carbohydrates, hormones, cell wall, and transcription factors may be critical for interstock-mediated citrus fruit development and ripening. The contents of ethylene, auxin, cytokinin, transcription factors, starch, sucrose, glucose, fructose, and total sugar in HPP plants differed considerably than those in HP fruits. Interstocks may help to regulate the early ripening and quality of citrus fruit through the above-mentioned pathways. These findings provide information on the effects of interstock on plant growth and development.
Patterns of (de)politicization in times of crisis: Swiss residents' political engagement, 1999–2020
Authors: Marquis Lionel , Kuhn Ursina , Monsch Gian-Andrea
Published: October 2022

We explore period, cohort and age effects on political engagement of Swiss residents from 1999 to 2020. A particular focus lies on the impact of the successive crises democratic societies have faced in recent years, such as the economic and debt crisis, refugee crisis, climate change, terrorist attacks or COVID-19 pandemic. We review the literature on the potential of such large-scale external events for both politicization and depoliticization. We then draw several hypotheses, which we test empirically. We consider several dimensions of political engagement (interest in politics, party identification, participation in popular votes, political discussions, and political trust), and seek to explain their variation over time, using data from the Swiss Household Panel. Our results suggest that “troubled times” have little effect on political engagement overall, but that crises stimulate political discussions and trust in government in the short term. We further find increasing levels of political trust in the longer run, which might reflect a cumulative effect of the various crises. In contrast, we find steadily declining levels of traditional forms of political engagement, namely party identification and participation in popular votes, as well as interest in politics. For cohorts, we find a U-shaped association between generations and political engagement. An exception to this pattern is political trust, where we observe a small but steady increase from older to newer generations. For age, we observed a monotonic increase of political engagement with age for all indicators. Again, trust in government somewhat deviates from other forms of political engagement, as it first decreases in the younger age groups and then increases from the age of 40 onwards. In conclusion, we discuss some implications of these complex patterns of results for the future of democratic systems.
Cats in Palace Museum: A narrative of cultural heritage and empathy of youth
Authors: Guo Yunjiao , Huang Tianle , Luo Qiuju
Published: October 2022

While research in heritage tourism tends to focus on cultural and anthropogenic motivations and drivers, this paper seeks to examine how social-media narration amidst a broader backdrop context in Chinese mass culture creates, perpetuates, and reinforce feline-focused narratives and practices among social media young followers. Drawing on text and image-based analyses of postings of cat sightings within the official Palace Museum account on a key Chinese microblog, this study reveals the application of three vital narrative strategies at work and corresponding empathic responses: ambassadorial, bounded, and broadcast. The Palace Museum has achieved an enhancement of interaction and emotional exchange between the heritage of Palace Museum and youths and generated a process from attention to emotional engagement and eventually to emotional identification on the part of youths in their attitude toward the heritage of Palace Museum through the workings of three key narrative strategies on Chinese social media. In doing so, this research illuminates the potential of social media-based narratives and charismatic animals in the revitalization of cultural heritage sites and the contributions of setting narrative strategies in engaging the younger audiences while also revitalizing the cultural heritage of the Palace Museum.
The effect of corporate social responsibility on trustful relationship, supportive communication intention, and brand loyalty of ethnic halal restaurants
Authors: Toshmirzaev Davron , Ahn Young-joo , Kiatkawsin Kiattipoom , Sutherland Ian , Zielinski Seweryn
Published: October 2022

The purpose of this study is to examine the relationships among CSR activities, brand trust, supportive communication intention, and brand loyalty in a halal restaurant franchise. This study attempts to understand the brand loyalty formation among foreigners visiting a halal ethnic restaurant franchise in South Korea. This study can contribute to the body of empirical evidence showing that CSR activities for different stakeholders can increase brand loyalty mediated by trust. Data were collected from an online survey platform, and visitors were recruited in one of the largest halal franchise restaurants in Korea. This study used a convenience sampling technique, and 225 questionnaires were used for final analysis. Structural equation modeling was likewise used in this research. The results reveal that CSR activities include four constructs: for communities, employees, the environment, and customers. These four dimensions reflect voluntary activities for core stakeholders and are positively associated with enhancement of trustful relationships between customers and restaurants. Among four CSR dimensions, CSR activities to employee are the most influential dimension, followed by CSR to community and to environment. However, the insignificant effect of CSR activities to customers on trust is found. Furthermore, trust positively influences supportive communication intention and brand loyalty. The proposed model of this present study can shed light on how to enhance brand loyalty and sustain trustful and emotional value of an ethnic restaurant franchise. The results can provide important implications for planning CSR engagement from a practical and managerial perspective in the restaurant industry.
Philanthropic sales in live-streaming shopping: The impact of online interaction on consumer impulse buying
Authors: Ye Yusen , Zhou Zhili , Duan Huawei
Published: October 2022

As philanthropic sales via live-streaming shopping have played an important role in alleviating the huge backlog of agricultural products during the outbreak of the COVID-19 pandemic, this paper aims to study how online interaction in philanthropic marketing exerts influence on consumer impulse buying behaviors. We empirically explore four major dimensions of online interactions in philanthropic live-streaming sales, i.e., the live streamers’ image, the herd effect of consumers, the responsiveness of sellers, and the mutual trust between consumers. The results reveal that the herd effect of consumers and the responsiveness of sellers could promote consumers’ empathy ability toward the growers of the products sold lively, whereas the live streamers’ image and the mutual trust between consumers have little effect on empathy promotions. Meanwhile, both the consumers’ empathy ability and the live streamers’ image positively affect consumers’ impulse buying behavior, which suggests a partial moderating role of consumers’ empathy ability. Lastly, by taking both social and business perspectives, we provide managerial implications for improving the effectiveness and efficiency of philanthropic live-streaming sales to alleviate social and economic pressure in emergencies.
Not built for families: Associations between neighborhood disinvestment and reduced parental cognitive stimulation
Authors: Canfield Caitlin F. , O’Connell Lauren , Sadler Richard C. , Gutierrez Juliana , Williams Shanna , Mendelsohn Alan L.
Published: October 2022

Infants learn and develop within an ecological context that includes family, peers, and broader built and social environments. This development relies on proximal processes—reciprocal interactions between infants and the people and environments around them that help them understand their world. Most research examining predictors of proximal processes like parent-child interaction and parenting has focused on elements within the home and family. However, factors like the neighborhood built environment may also exhibit an influence, and may be particularly critical in infancy, as socioeconomic disparities in cognition and language emerge early in life. Moreover, influence from the built environment could independently exacerbate these disparities, as research indicates that neighborhood impacts may be especially relevant for families living in neighborhoods that have experienced disinvestment and therefore have been under-resourced. The current study examines these questions by determining the association of neighborhood vacancy rate and observed physical disorder—indicators of poverty, residential stability, and long-term structural discrimination—with parental cognitive stimulation among predominantly Black/African-American families in Flint, Michigan. Flint is particularly salient for this study because vacancy rates and disinvestment vary widely across the city, driven by its long-time status as a city struggling economically. Regression analyses controlling for caregiver education, mental health, and social support indicated that vacancy rate and physical disorder negatively predicted parental cognitive stimulation. Moreover, there were significant interactions between the built environment and social support, indicating that, particularly for parent-child shared reading, vacancy rate and physical disorder predicted reduced shared reading only when parents had limited social support. These results have important implications for public policy around vacant property demolition and neighborhood reinvestment programs, as they indicate that the neighborhood built environment is associated with parenting behaviors that have important impacts on infants’ learning and development.
When freedom of choice leads to bias: How threat fosters selective exposure to health information
Authors: Wedderhoff Oliver , Chasiotis Anita , Rosman Tom
Published: October 2022

Selective exposure to online health information can be ascribed to two related defense motives: the motivation to confirm one’s subjective perceptions and the motivation to protect relevant parts of the self-image, such as physical integrity. Our aim was to identify how these motives come into effect in the context of a health threat (fictitious feedback on an alleged heart disease risk). In a preregistered online study with N = 763 participants, we analyzed the impact of perceived and suggested risk on the degree of bias in selecting risk-related information on a fictitious Google search results page. Applying a 2 × 2 design with the experimental factor “risk feedback” and the quasi-experimental factor “perceived risk,” we formulated six hypotheses. First, we expected a main effect of perceived risk on selective exposure to information suggesting no risk, and second, we hypothesized a main effect of perceived risk on mean quality rating of information suggesting a risk. Third, we proposed a main effect of risk feedback on selective exposure to information which suggests no risk, and fourth, we proposed a main effect of risk feedback on mean quality rating of information suggesting a risk. Fifth, we expected an interaction effect between perceived and suggested risk, and sixth, we proposed an interaction effect between perceived and suggested risk in different forms for each of the four conditions on quality ratings. Only the third hypothesis was confirmed: Receiving information which suggested a health risk increased the tendency to select information denying the risk. Additional exploratory analyses revealed moderator effects of health information literacy and participant age on the aforementioned relationships. In sum, our results underline the crucial role of defense motives in the context of a suggested health threat.
Case report: Dancing in the dark: A critical single case study engaging a blind father in the rehabilitation journey of his visually impaired child
Authors: Provenzi Livio , Pettenati Giada , Luparia Antonella , Paini Daria , Aprile Giorgia , Morelli Federica , Mascherpa Eleonora , Vercellino Luisa , Grumi Serena , Signorini Sabrina
Published: October 2022

Background

Face-to-face visual contact is a key component of the early parent-child interaction, therefore a visual impairment condition of the parent or the child represents a risk factor for dyadic patterns' development.

Aims

The study presents a critical single case of a blind father and a 18-month-old visually impaired child. The study aims to explore changes in the relational functioning of this dyad during an early family-centered intervention.

Methods and procedures

Ten parent-child sessions were videotaped and micro-analytically coded. Data were analyzed through a State Space Grid crossing child's social cues and types of father verbalizations.

Outcomes and results

Findings showed a stable increase in the amount of child social cues over time. Moreover, the dyad exhibited progressive changes in dyadic regulation, stability, and organization. The return time to the “active interaction” region of interest decreased progressively. A reduction was observed also for the time spent by the dyad in the region “no vocal contact.”

Conclusions and implications

This critical single case highlighted the benefits of parental engagement in early interventions for the dyadic regulation in parent-child interaction.
Special education teachers’ job demands-resources profiles and capabilities: Effects on work engagement and intention to leave
Authors: Murangi Annelisa , Rothmann Sebastiaan , Nel Mirna
Published: October 2022

This study aimed to investigate the job demands-resources profiles and work capabilities of special education teachers in Namibia and their effect on work engagement and intention to leave. A convenience sample was taken of teachers from seven different regions across Namibia (N = 200). The Capability Set for Work Questionnaire, the Job Demands-Resources Questionnaire, the Work Engagement Questionnaire, and the Intention to Leave Questionnaire were administered. Using latent profile analysis, four job demands-resources profiles were identified: resourceful job, demanding job, poor job, and rich job. A poor job was negatively associated with the capability to use knowledge and skills, while resourceful and rich jobs were associated with developing new knowledge and skills, being involved in important decisions, building and maintaining relationships, and setting own goals. Job experience was negatively associated with five of the seven capabilities. Resourceful and rich jobs and the capability set predicted a large percentage of the variance in work engagement and a moderate percentage of the variance in intention to leave. High emotional demands, coupled with overload and a lack of resources interfere with teachers’ functioning (e.g., work engagement and intention to leave).
Om chanting modulates the processing of negative stimuli: Behavioral and electrophysiological evidence
Authors: Zhang Ziyu , Peng Yanqin , Chen Tingji
Published: October 2022

Previous studies have suggested that Om chanting, a type of meditation, can relieve individuals' negative emotions. However, the dynamic aspects of neural processes in the processing of the negative stimuli while Om chanting are still unclear. In this study, we recruited 33 healthy undergraduate students without meditation experience and recorded event-related potentials (ERPs) to unpleasant and neutral images when they performed Om chanting and viewing task. The behavioral results showed that the unpleasant images were rated as less unpleasant and arousing in the condition of Om chanting than while passive viewing, and the rates were not different between the two conditions for the neutral images. Analyses of the ERP responses to the emotional stimuli revealed that Om chanting decreased P1 and late positive potential (LPP) amplitudes for the neutral images but not for the unpleasant images. We speculated that Om chanting might reduce vigilance to the neutral stimuli, whereas for the negative stimuli, they automatically captured all available attentional resources and led to a failure in observing the regulating effect of Om chanting. These observations suggest that Om chanting modulates individuals' affective evaluations to the negative stimuli and alters early visual and late neural processing of the stimuli.
Signaling effect in social network and charity crowdfunding: Empirical analysis of charity crowdfunding of Sina MicroBlog in China
Authors: Li Chaoyang , Li Xinyi , Wang Jingmei , Pan Mengyang , Gao Weiyi
Published: October 2022

With the increasing number of online charity donations, research on the influencing factors of individual donation behavior has become an important topic. Social interaction information in crowdfunding has become an essential basis for potential backers to make decisions. It provides new research space for charity crowdfunding and social capital theory. The primary purpose of this study is to explore the influence of social capital, social recommendation, and other signals on charity crowdfunding performance. We obtain 4,780 project information on the charity crowdfunding of Sina MicroBlog through data collection procedures. Our research found that both external social capital and internal capital can significantly improve the fundraising performance of crowdfunding projects. Projects with more social recommendations are more likely to obtain financial support. In the case of Medical aid crowdfunding projects, the positive promotion effect of social recommendations on project fundraising ability is enhanced. To get more effective support for crowdfunding projects, it is necessary to pay attention to the construction of social capital and the cultivation of its reputation to obtain the recognition of potential backers.
Can there be overly meaningful lives? Conflicts between meaning in life and other values
Authors: Landau Iddo
Published: October 2022

This is a philosophical paper that heeds psychological work on meaning in life, and hopes to acquaint both psychologists and philosophers more with each other’s work and enhance a dialogue between them. Many works on meaning in life in philosophy and in psychology have already focused on the relations between meaning in life and specific values such as happiness (subjective wellbeing), authenticity, morality, knowledge, and artistic creation. This paper discusses the general structure of the relation between both objective and subjective meaning in life and other values, and emphasizes ways in which such values sometimes conflict with rather than enhance objective or subjective meaning in life. The paper argues that, because of such conflicts, there are cases in which we should refrain from augmenting the objective or subjective meaning in our lives and even seek to decrease it; there can be overly meaningful lives. The paper concludes with some practical implications of this discussion.
University-industry collaboration: The impact of postdoctoral workstations on labor investment efficiency
Authors: Liu Yiding , Yi Kefu , Huang Guanhua
Published: October 2022

This paper investigates whether managers use knowledge transferred from university-industry collaboration when making investment decisions on labor. To establish causality, we use a difference-in-difference method based on the staggered establishment of postdoctoral workstations in Chinese firms. We find that postdoctoral workstations enable managers to improve labor investment efficiency and thus help mitigate over- and under-investment problems in labor, and the higher the operational quality of the workstation, the more significant the increase in investment efficiency. This finding is robust to utilizing the event study approach, placebo test, propensity score matching, instrumental variable, and entropy balancing. Brain gain and knowledge transfer effects between universities and industries are two plausible mechanisms. Furthermore, the main effect is more pronounced for firms located closer to prestigious universities, firms are non-state-owned enterprises, human-capital-intensive, have political connections, and without national fellows’ lead. Our findings suggest that brain gain in firms does not merely increase or reduce labor investments Per se, but rather inspires managers to maintain optimal labor levels through knowledge transfer processes.
What is behind the lifestyle risk factors for head and neck cancer?
Authors: Iftikhar Anem , Islam Mohammad , Shepherd Simon , Jones Sarah , Ellis Ian
Published: October 2022

Lifestyle factors are known to be influential determinants of health. According to the World Health Organization (WHO), approximately one third of deaths involve unhealthy lifestyle habits. Among lifestyle risk factors for head and neck cancers (HNC), alcohol consumption and smoking have an undeniable role in the multifactorial aetiology of the disease. In recent years, the promotion of healthy lifestyle choices has gained significant attention as contributory to improving health and disease prevention. Interventions to tackle these risk factors are vitally important in disease prevention and progression. However, in order to effectively prevent the disease and reduce the risk factors, it is crucial to identify what upstream reasons lead to the adoption of these lifestyle risk factors in the first place. Stress being a constant aspect of modern-day life is known to contribute to alcohol and smoking practices. In this review paper, relevant literature was searched in PubMed database for stress, lifestyle factors, HNC and cancer to explore the role of stress and its associated biological pathways as an upstream factor in the adoption of lifestyle risk factors that cause HNC. It highlights the importance of stress pathways and the Hypothalamus Pituitary Adrenal (HPA) axis as a locus of interaction between stress, alcohol, smoking and cancer. Despite their widely accepted harmful effects, alcohol and smoking remain deeply rooted in contemporary life. A greater understanding of the impact of stress on lifestyle choices and an exploration of the mechanisms resulting in stress, alcohol- and smoking- related cancer may highlight opportunities for improved prevention measures through the modification of unhealthy lifestyle choices.
False memory and COVID-19: How people fall for fake news about COVID-19 in digital contexts
Authors: Mangiulli Ivan , Battista Fabiana , Kafi Nadja Abdel , Coveliers Eline , Webster Theodore Carlson , Curci Antonietta , Otgaar Henry
Published: October 2022

People are often exposed to fake news. Such an exposure to misleading information might lead to false memory creation. We examined whether people can form false memories for COVID-19-related fake news. Furthermore, we investigated which individual factors might predict false memory formation for fake news. In two experiments, we provided participants with two pieces of COVID-19-related fake news along with a non-probative photograph. In Experiment 1, 41% (n = 66/161) of our sample reported at least one false memory for COVID-19-related fake news. In Experiment 2, even a higher percentage emerged (54.9%;n = 185/337). Moreover, in Experiment 2, participants with conspiracy beliefs were more likely to report false memories for fake news than those without such beliefs, irrespective of the conspiratorial nature of the materials. Finally, while well-being was found to be positively associated with both true and false memories (Experiment 1), only analytical thinking was negatively linked to the vulnerability to form false memories for COVID-19-related fake news (Experiment 2). Overall, our data demonstrated that false memories can occur following exposure to fake news about COVID-19, and that governmental and social media interventions are needed to increase individuals’ discriminability between true and false COVID-19-related news.
Effect of low frequency sound vibration on acute stress response in university students—Pilot randomized controlled trial
Authors: Kantor Jiří , Vilímek Zdeněk , Vítězník Martin , Smrčka Pavel , Campbell Elsa A. , Bucharová Monika , Grohmannová Jana , Špinarová Gabriela , Janíčková Kateřina , Du Jian , Li Jiaoli , Janátová Markéta , Regec Vojtěch , Krahulcová Kristýna , Kantorová Lucia
Published: October 2022

Background

Low frequency sound (LFS, combined with music listening) is applied by practitioners in vibroacoustic therapy who report a positive effect of this intervention on acute stress response. However, there is a lack of research on this topic and studies with mainly objective measurements are scarce.

Materials and methods

In this pilot double-blinded Randomized Controlled Trial we used a multimodal approach to measurement of acute stress response in 54 international university students attending a university summer school in Olomouc, the Czech Republic who were individually randomized into a group receiving LFS vibration and a control group. In both groups, the acute stress response was measured by heart rate variability (HRV), visual analogue scales (VAS) for stress and muscle relaxation.

Results

Differences were found in pre-test post-test measures, however, between groups differences occurred only for HRV, with statistically significant improvement in the experimental group (parameter LF/HF and pNN50).

Conclusion

Vibroacoustic therapy has the potential to contribute to the stress management of university students. Further research is needed to explore the effect of LFS on stress response, especially when applied without additional music listening.
Team ball sport experience minimizes sex difference in visual attention
Authors: Jin Peng , Ge Zhigang , Fan Tieming
Published: October 2022

Simultaneous tracking of the position of the ball and player locations and activities places high demands on visual attention in team ball sport athletes. Owing to their extensive sports training, these athletes may be expected to exhibit visual attention skills superior to non-athletes; however, the results of studies examining this are inconsistent. Thus, the first aim of this study was to assess the impact of participating in a team ball sport on visual attention. There is limited empirical evidence indicating a sex difference in visual attention, and few studies have reported on visual attention in male and female athletes. Thus, the second aim of this study was to determine whether team ball sport experience affected any sex differences in visual attention. In total, 44 highly skilled basketball players—22 men (mean age: 21.86 ± 2.15 years) with a mean (SD) of 8.46 (2.92) years training experience and 22 women (mean age: 21.32 ± 1.58 years) with a mean (SD) of 8.22 (2.44) years of training experience—and 44 non-athletic undergraduate college students—22 men (mean age: 21.62 ± 1.88 years) and 22 women (mean age: 21.55 ± 1.72 years)—were recruited and completed this study. Visual attention was measured by using the multiple object tracking (MOT) task. Skilled basketball players showed superior tracking accuracy to non-athletic college students on the MOT task. A significant sex difference was found only among the non-athletic college students, with better tracking accuracy for men than for women on the MOT task. By contrast, no significant sex difference was observed among the skilled basketball players for tracking accuracy on the MOT task. These findings indicated that team ball sport training may enhance visual attention as assessed by tracking accuracy. Given that the male and female basketball players in this study had similar training experience and game performance demands, long-term team ball sport experience appeared to minimize the sex difference in visual attention found among non-athletic students.
Stressors and difficulties perceived during the pandemic in the teaching activity of nursing professors
Authors: Losa-Iglesias Marta , Jimenez-Fernandez Raquel , Corral-Liria Inmaculada , Herraiz-Soria Elena , Rodriguez-Vazquez Rocio , Becerro-De-Bengoa-Vallejo Ricardo
Published: October 2022

Background

The coronavirus 2019 (COVID-19) pandemic has prompted several changes in teaching methods in addition to the ways of learning by students.

Objective

To check whether a relationship between factors, such as resilience, self-esteem, depression, anxiety, academic stressors, and a change in teaching methods and learning since the first epidemic outbreak exists.

Materials and methods

This study was a cross-sectional descriptive one with a non-random sample of nursing degree teachers who did or did not participate in clinical activities but had been teaching online since the start of the pandemic. Data were collected with online questionnaires validated for self-completion with Google Forms.

Results

Regarding the analysis of the descriptive data of each scale, we can verify that data indicate very high levels of resilience and self-esteem in the normal range with minimal levels of depression, moderate anxiety, and finally not worrying about sources of stress in teachers. Also, negative correlations were found between the 10 Connor–Davidson Resilience Scale, Beck Depression Inventory (BDI 2), Beck Anxiety Inventory (BAI), and Scale of Sources of Stress in Teachers with a statistical significance of p < 0.001. The Rosenberg Self-Esteem Scale also showed negative correlations with the three previously mentioned scales with a statistical significance of p < 0.001. Finally, positive correlations between the Beck (BDI 2), Beck (BAI), and Sources of Stress in Teachers scales and between the Rosenberg Self-Esteem scale and the 10 CD RISC scale were found (p < 0.001).

Discussion

Our study shows that nursing degree teachers combine teaching with activities and presented moderate levels of anxiety, depression, and tolerance to academic stressors and were able to maintain optimal levels of self-esteem and resilience, indicating that these two factors act as protectors against these stressors.

Tweetable abstract

Nursing teachers presented moderate levels of anxiety, depression, and academic stressors due to optimal levels of self-esteem and resilience.