bluuebunny/crossref_metadata_2025_split huggingface dataset:
Influence of Pink Pigmented Facultative methylotrophic bacteria (PPFM) as a foliar spraying on the growth and productivity of strawberry (Fragaria xananassa Duch.)
Authors: Ismail Shadia A. , Fafy A.M. 
Published: December 2021

AbstractPink pigmented facultative methylotrophic bacterium (PPFM) has a favorable impact on plant development and production, it is known as a biostimulator, biofertilizer and biocontroller. Here we investigate the effect of foliar spraying of PPFM, 10% methanol,30% methanol, and their combinations on the growth, fruit quality, and yield of two strawberry cultivars. PPFM was isolated from cotton leaves using imprinting technique. 16S rRNA sequence analysis identified it to be Methylobacterium radiotolerance. Its 16S rRNA sequence were deposited in the Gene Bank under accession number MT644122.1. Two field experiments were conducted during the 2017/2018 and 2018/2019 seasons to investigate the effect of foliar spraying of PPFM and methanol (10 and 30%) on the growth, fruit quality, and yield of two strawberry cultivars. The obtained results showed that, there were no significant differences in the most characteristics between the two cultivars except foliage fresh weight and early yield were higher in cv. Florid, however, Festival cv. recorded higher total yield /plant, anthocyanins and ascorbic acid content in both seasons. Spraying PPFM exhibited the highest values of chlorophyll, fresh weight, total yield and quality. Furthermore, PPFM combined with methanol 10% gave the highest values of leaf area, dry matter %, early yield and some fruit quality. Spraying cv. Florida with PPFM resulted in the best interactions for early yield. However, the best interaction for total yield and most fruit quality features was observed with Festival c.v. and spraying PPFM. It is reasonable to conclude that PPFM is the most effective treatment, increasing strawberry total yield/fed by 28.1 % in the 1st season and 27.91 % in the 2nd season compared to the control.
Insilico and Invitro optimization of Naringin and rutin molecules targeting DNA damage in breast cancer cells
Authors: Pravin Badhe , Nanaware Vivek , Ashwini Badhe 
Published: December 2021

AbstractDiscovering the molecular mechanisms of DNA damage response pathways has led to new therapeutic approaches in oncology. Our study optimized DNA damage-targeting molecules naringin and rutin in breast cancer cells.Our study involved MTT assays for detection of its toxicity and proliferative activity in breast cancer cells and normal cancer cells. Our studies determined the molecules’ antioxidant properties using the DPPH assay. The role in reducing free radicals has been evaluated using a variety of free radical scavenging activity assays.Further evaluation of the molecules was carried out by high alkaline comet assay (pH >13) to test for genotoxicity. Human Dermal Fibroblast cells (2DD) (1×105 cells/ml) and breast cancer cells (MDA-MB-231) were pre-incubated with Naringin and Rutin (10 µM) for one hour.In normal cells, rutin and naringin molecules do not cause genotoxicity, but they cause DNA damage in breast cancer cells when they are diluted to 10µM. The results from our study indicate that both molecules cause 60-70% DNA damage in breast cancer cells.
Asymmetric and threshold effects of public debt on economic growth in SADC: a panel smooth transition regression analysis
Authors: Makhoba Bongumusa Prince , Kaseeram Irrshad , Greyling Lorraine 
Published: December 2021

PurposeThis study aims to interrogate dynamic asymmetric relationships between public debt and economic growth in Southern African Developing Communities (SADC), over the period 2000–2018.Design/methodology/approachThe study employed a panel smooth transition regression (PSTR) technique to analyse dynamic asymmetric relationships between public debt and economic growth, and the threshold effect at which public debt hampers economic growth.FindingsThe findings indicate that there is a significant nonlinear effect of debt on economic growth in SADC. The study discovered a debt threshold of 60% to GDP at which debt beyond this threshold deteriorates long-term growth. The low-debt regime was found to be positive and statistically significant, while the high-debt regime is detrimental for long-term growth. Fiscal policymakers ought to consider the adoption of well-coordinated debt policies that aims to strike a balance between sustainable public debt and economic growth, within a reasonable threshold target.Originality/valueThe study focusses on asymmetric and threshold analysis of public debt on economic growth in SADC using sophisticated panel smooth transition regression (STAR). This study provides rigorous empirical evidence within the SADC perspective in which previous studies have predominantly been confined in advanced economies.
“Is there anybody out there?” Using a telepresence robot to engage in face time at the office
Authors: Muratbekova-Touron Maral , Leon Emmanuelle 
Published: December 2021

PurposeThe purpose of this paper is to study the impact of mobile robotic telepresence systems on face time – which refers to people “seeing and being seen” – and analyse whether they allow overcoming the challenges associated with telecommuting.Design/methodology/approachThis research is based on a qualitative methodology in two French high-tech companies using interviews to better understand how the use of a telepresence robot is experienced by teleworkers, co-workers and their managers.FindingsThe results demonstrate that telepresence robots do offset the absence of teleworkers by allowing them to engage in face time, even remotely. It shows how the telepresence robot's affordances impact the different dimensions of face time and examine the processes through which teleworkers and co-workers anthropomorphize the robot and manage their privacy needs.Originality/valueThis article further elaborates the concept of face time and offers six dimensions to study in a digitally driven environment, including two newly identified dimensions. It also discusses the surveillance and privacy needs issues raised by the use of mobile robotic telepresence (MRP) systems.
Saturation, acceleration and information pathologies: the conditions that influence the emergence of information literacy safeguarding practice in COVID-19-environments
Authors: Lloyd Annemaree , Hicks Alison 
Published: December 2021

PurposeThe purpose of this second study into information literacy practice during the COVID-19 pandemic is to identify the conditions that influence the emergence of information literacy as a safeguarding practice.Design/methodology/approachThe qualitative research design comprised one to one in-depth interviews conducted virtually during the UK's second and third lockdown phase between November 2020 and February 2021. Data were coded and analysed by the researchers using constant comparative techniques.FindingsContinual exposure to information creates the “noisy” conditions that lead to saturation and the potential for “information pathologies” to act as a form of resistance. Participants alter their information practices by actively avoiding and resisting formal and informal sources of information. These reactive activities have implications for standard information literacy empowerment discourses.Research limitations/implicationsThe paper is limited to the UK context.Practical implicationsFindings will be useful for librarians and researchers who are interested in the theorisation of information literacy as well as public health and information professionals tasked with designing long-term health promotion strategies.Social implicationsThis paper contributes to our understandings of the role that information literacy practices play within ongoing and long-term crises.Originality/valueThis paper develops research into the role of information literacy practice in times of crises and extends understanding related to the concept of empowerment, which forms a central idea within information literacy discourse.
Body shapes and apparel fit for overweight and obese women in the US: the implications of current sizing system
Authors: Shin Eonyou , Saeidi Elahe 
Published: December 2021

PurposeThe purpose of this study was to categorize the whole body shapes of overweight and obese females in the US and examine apparel fit based on the current ASTM sizing standards related to the body shapes categorized.Design/methodology/approachBody scan data from 2,672 subjects were used. To categorize their whole body shapes using 97 body measurements, principal component analysis with varimax rotation, a hierarchical cluster analysis and K-means cluster analysis were used. To compare the ASTM sizing standards for plus sizes (curvy and straight) and missy sizes (curvy and straight), five body parts (bust, under bust, waist, top hip, hip) using the formula for fit tolerance (measurement plus half of the interval) were compared with the ASTM sizing standards to determine the size appropriate for each body part.FindingsFive whole body shapes among overweight and obese females in the US were categorized: Rectangle-curvy; parallelogram-moderately curvy; parallelogram-hip tilt; inverted trapezoid-moderately curvy and inverted trapezoid-hip tilt. When the body measurements in each body shape were compared with the current ASTM sizing systems for both misses and plus sizes, four-fifths or more of overweight and obese female adults in the US would find it difficult to obtain a perfect fit for both tops and bottoms.Originality/valueIdentifying whole body shapes among overweight and obese women in the US contributes significantly, as it will help apparel companies that target the markets of larger women develop a new sizing system. This study is the first attempt to analyze fit by comparing the ASTM sizing charts with body measurements in each body shape group. Further, the study contributes to the body-related literature by filling gaps in missing whole BS categories among overweight and obese females.
Boundary work in value co-creation practices: the mediating role of cognitive assistants
Authors: Mele Cristina , Russo-Spena Tiziana , Marzullo MariaLuisa , Ruggiero Andrea 
Published: December 2021

PurposeHow to improve healthcare for the ageing population is attracting academia attention. Emerging technologies (i.e. robots and intelligent agents) look relevant. This paper aims to analyze the role of cognitive assistants as boundary objects in value co-creation practices. We include the perceptions of the main actors – patients, (in)formal caregivers, healthcare professionals – for a fuller network perspective to understand the potential overlap between boundary work and value co-creation practices.Design/methodology/approachWe adopted a grounded approach to gain a contextual understanding design to effectively interpret context and meanings related to human–robot interactions. The study context concerns 21 health solutions that had embedded the Watson cognitive platform and its adoption by the youngest cohort (50–64-year-olds) of the ageing population.FindingsThe cognitive assistant acts as a boundary object by bridging actors, resources and activities. It enacts the boundary work of actors (both ageing and professional, caregivers, families) consisting of four main actions (automated dialoguing, augmented sharing, connected learning and multilayered trusting) that elicit two ageing value co-creation practices: empowering ageing actors in medical care and engaging ageing actors in a healthy lifestyle.Originality/valueWe frame the role of cognitive assistants as boundary objects enabling the boundary work of ageing actors for value co-creation. A cognitive assistant is an “object of activity” that mediates in actors' boundary work by offering novel resource interfaces and widening resource access and resourceness. The boundary work of ageing actors lies in a smarter resource integration that yields broader applications for augmented agency.
Integrating relational systems theory with ethical leadership: how ethical leadership relates to employee turnover intentions
Authors: Marquardt Dennis J. , Manegold Jennifer , Brown Lee W. 
Published: December 2021

PurposeAs ethical leadership has advanced as a construct, the degree to which healthy relational systems explain its effect on employee outcomes has been understudied. With this manuscript we conceptualize and test a model based on a Relational Systems approach to ethical leadership and its relationship with conflict and turnover intentions.Design/methodology/approachTwo studies were conducted to test our hypothesized first- and second-stage moderated mediation model. In Study 1, online surveys were completed by 168 working adults across two different time points. Study 2 extended Study 1 by surveying 115 working adults across three time points using the Mechanical Turk platform.FindingsThe indirect relationship between ethical leadership and turnover intentions via relationship conflict was conditional based on follower moral identity. The negative influence of ethical leadership on relationship conflict and, in turn, turnover intentions was stronger for followers who had higher moral identities. In addition, our findings suggest that leader holding behaviors strengthen the negative indirect effects of ethical leadership on turnover intentions.Originality/valueThis paper demonstrates the usefulness of a Relational Systems theoretical approach to understanding ethical leadership. Specifically, ethical leaders, through their desire and ability to help employees feel known and not alone at work, are better able to reduce relationship conflict and, in turn, reduce employees' desire to leave the organization.
Decreased microRNA‐126 expression in psoriatic CD4+ T cells promotes T‐helper 17 cell differentiation and the formation of dermatitis in imiquimod‐induced psoriasis‐like mice
Authors: Wu Ruifang , Li Xin , Li Siying , Tang Guishao , Zhang Suhan , Zhu Yanshan , Zhang Xiaochao , Deng Min , Tan Siqi , Luo Shuangyan , Zhang Qing , Zhao Ming , Zhang Peng , Su Yuwen 
Published: December 2021

AbstractPsoriasis is a chronic inflammatory skin disease with multiple genetic backgrounds, whose etiology and pathogenesis are still unclear. Complex T‐cell immune imbalance has been demonstrated to play an important role in pathogenesis of psoriasis. This study reported that microRNA‐126 (miR‐126) expression was decreased in CD4+ T cells of both psoriasis patients and psoriasis‐like mouse models and its expression was negatively correlated with the Psoriasis Area and Severity Index (PASI) score of psoriasis patients. Conditional Mir126 knockout in mouse CD4+ T cells can obviously aggravate the psoriasis‐like dermatitis and promote T‐helper (Th)1 and Th17 cells’ infiltration in spleen of imiquimod (IMQ)‐induced psoriasis‐like mouse model. In addition, the mRNA expression of Il17a and Il17f were significantly increased in mouse naïve CD4+ T cells with Mir126 knockout after stimulating with CD3 and CD28. Compared with naïve CD4+ T cells, the expression of Mir126 was decreased in Th17 cells, and Mir126 knockout notably promoted the differentiation of naïve CD4+ T cells to Th17 cells as well as the mRNA expression of Il17a, Il17f, Rorc, and Il23R. Our results revealed that decreased miR‐126 in psoriatic CD4+ T cells might accelerate the formation of skin lesions through promoting the differentiation of Th17 cells, thus suggesting a potential intervention target for psoriasis.
CARD‐FISH and prey tracer techniques reveal the role of overlooked flagellate groups as major bacterivores in freshwater hypertrophic shallow lakes
Authors: Šimek Karel , Mukherjee Indranil , Nedoma Jiří , de Paula Caio César Pires , Jezberová Jitka , Sirová Dagmara , Vrba Jaroslav 
Published: December 2021

SummaryHeterotrophic nanoflagellates (HNF) and ciliates are major protistan planktonic bacterivores. The term HNF, however, describes a functional guild only and, in contrast to the morphologically distinguishable ciliates, does not reflect the phylogenetic diversity of flagellates in aquatic ecosystems. Associating a function with taxonomic affiliation of key flagellate taxa is currently a major task in microbial ecology. We investigated seasonal changes in the HNF and ciliate community composition as well as taxa‐specific bacterivory in four hypertrophic freshwater lakes. Taxa‐specific catalyzed reporter deposition‐fluorescence in situ hybridization probes assigned taxonomic affiliations to 51%–96% (average ±SD, 75 ± 14%) of total HNF. Ingestion rates of fluorescently labelled bacteria unveiled that HNF contributed to total protist‐induced bacterial mortality rates more (56%) than ciliates (44%). Surprisingly, major HNF bacterivores were aplastidic cryptophytes and their Cry1 lineage, comprising on average 53% and 24% of total HNF abundance and 67% and 21% of total HNF bacterivory respectively. Kinetoplastea were important consumers of bacteria during summer phytoplankton blooms, reaching 38% of total HNF. Katablepharidacea (7.5% of total HNF) comprised mainly omnivores, with changing contributions of bacterivorous and algivorous phylotypes. Our results show that aplastidic cryptophytes, accompanied by small omnivorous ciliate genera Halteria/Pelagohalteria, are the major protistan bacterivores in hypertrophic freshwaters.
The economic impact of the COVID‐19 pandemic on the Taiwanese food industry: Empirical evidence using business transaction data
Authors: Yang Feng‐An , Chang Hung‐Hao , Wang Jiun‐Hao 
Published: December 2021

AbstractA rapidly growing literature examines the impacts of COVID‐19 on consumer spending and business operations. However, little is yet known about its effects on the food industry. We contribute to this topic by quantifying the effects of COVID‐19 on the Taiwanese food industry, including food manufacturing, wholesale, retail and service sectors. Using administrative data on the business transactions of food industry firms in Taiwan with a difference‐in‐differences model, we find that COVID‐19 reduced the total sales value of the food industry by 24%. However, the negative effects are unequally distributed among different sectors of the food industry. The negative effect is more pronounced in the food manufacturing sector. We also find a substantial impact in urban areas, high‐income areas and areas with a larger proportion of elderly population. Compared to most of the countries that implemented mandatory lockdowns to cope with COVID‐19, Taiwan maintained good control over the pandemic in 2020. The mobility of Taiwanese residents is much higher than those of other countries with severe infection rates. However, we show that there are still significant economic impacts on the food industry in Taiwan.
The Cumulative Role of Impoundments in Streamflow Alteration
Authors: Brogan Connor , Burgholzer Robert , Keys Tyler , Kleiner Joseph , Shortridge Julie , Scott Durelle 
Published: December 2021

AbstractSmall impoundments are numerous throughout river corridors. Limited data on their size and outflow have made it difficult to assess how these smaller impoundments cumulatively impact streamflow. This study combined rainfall‐runoff data from the Chesapeake Bay Watershed Model with a routing framework to develop a hydrologic model capable of analyzing flow alteration induced by cumulative impoundment. Using standard design processes and satellite imagery, simulations of impoundment hydraulics were assembled for both small and large impoundments. Eleven of the 170 impoundments in the Difficult Run watershed were modeled to assess their cumulative impact on downstream flow from 1984 to 2005. Multiple simulations were analyzed to determine incremental effects. We found that flow alteration increased with impoundment density. Impoundments prolonged storm hydrographs, increasing median and baseflows, and decreasing peak streamflow downstream. Impoundment size and location impacted downstream flow alteration as headwater channels ran dry and evaporation from impoundments with high surface area to storage ratios decreased extreme low flows. Large reservoirs had a greater impact on median flows, as small ponds dominated low flow alteration. Including a greater fraction of the watershed’s 170 small impoundments may further increase flow alteration. These results suggest that small impoundments play a large role in determining water availability, particularly during droughts.
Exercise can restore behavioural and molecular changes of intergenerational morphine effects
Authors: Sadat‐Shirazi Mitra‐Sadat , Nouri Zadeh‐Tehrani Setareh , Akbarabadi Ardeshir , Mokri Azarakhsh , Taleb Zadeh Kasgari Bahar , Zarrindast Mohammad‐Reza 
Published: December 2021

AbstractIn our previous studies, the offspring of morphine‐exposed parents (MEO) showed pharmacological tolerance to the morphine's reinforcing effect. According to the role of exercise in treatment of morphine addiction, the current study was designed to utilize exercise to improve the effect of parental morphine exposure on the morphine's reinforcing effect. Male and female rats received morphine for 10 days and were drug‐free for another 10 days. Each morphine‐exposed animal was allowed to mate either with a drug‐naïve or a morphine‐exposed rat. The offspring were divided into two groups: (1) offspring that were subjected to treadmill exercise and (2) offspring that were not subjected to exercise. The reinforcing effect of morphine was evaluated using conditioned place preference (CPP) and two‐bottle choice (TBC) tests. Levels of dopamine receptors (D1DR and D2DR), μ‐opioid receptor (MOR), and ΔFosB were evaluated in the nucleus accumbens. The MEO obtained lower preference scores in CPP and consumed morphine more than the control group in TBC. After 3 weeks of exercise, the reinforcing effect of morphine in the MEO was similar to the control. D1DR, D2DR, and MOR were increased in MEO compared with the controls before exercise. Levels of D1DR and MOR were decreased after exercise in the MEO; however, D1DR was increased in control. D2DR level did not change after exercise in MEO, but it increased in control group. Moreover, the level of ΔFosB was decreased among MEO while it was increased after exercise. In conclusion, exercise might modulate the reinforcing effect of morphine via alteration in levels of D1DR, MOR, and ΔFosB.
Effect of glycolic acid and EDTA on dentin mechanical properties
Authors: de Andrade Marafiga Fernanda , Barbosa Ana Flávia Almeida , Silva Emmanuel João Nogueira Leal , Souza Matheus Albino , Farina Ana Paula , Cecchin Doglas 
Published: December 2021

AbstractThe aim of this study was to evaluate the effect of glycolic acid (GA) and EDTA on dentin mechanical properties. For the cohesive strength, flexural strength and fracture strength tests, the hourglass of root dentin, dentin sticks and roots standardised to 1 mm thickness were used respectively. ANOVA and Tukey tests were used for statistical analysis (P < 0.05). The results showed that EDTA and GA 17% reduced the cohesive strength values when compared to distilled water (control; P = 0.0022 and P = 0.0016 respectively), whereas the values for GA 10% group were similar to those of the control group (P = 0.093). No statistically significant difference was found among the groups for the flexural strength test (P = 0.1974). Fracture strength test showed that EDTA and GA 17% were statistically similar to each other (P = 0.7694) and statistically inferior to GA 10% (P = 0.0007 and P = 0.0004 respectively). It was concluded that 10% GA showed fewer negative effects on dentin mechanical properties.