Effects Of Different Types Research Articles

The effect of textual and textual-pictorial glosses on incidental vocabulary learning in mobile-assisted listening

Abstract This study investigated how multimedia glossing affects incidental vocabulary learning from a listening task on mobile devices. A total of 118 English language learners were asked to listen to a story with 25 glossed target words on their mobile phones. In order to examine the effects of different types of glossing, participants were divided into four groups with access to four glosses during their listening: L1 textual, L2 textual, L1 textual and pictorial, and L2 textual and pictorial. Two vocabulary tests (i.e. definition-supply test and meaning-recognition test) were administrated immediately after treatment and two weeks later to measure vocabulary gain for target words. The results indicated that participants who had access to L1 textual and pictorial glosses had significantly higher vocabulary gains than other conditions, especially in meaning-recall word knowledge. Finally, a detailed discussion of the findings was provided to explain the results based on the theoretical framework of the study.

Comparing theeffect of applying different types of amendments on carbon emissions and kinetics of degrading total petroleum hydrocarbons in artificial petroleum-contaminated soil.

Contamination byspent engine oil represents a significant global environmental challenge as it poses a major hazard to human health, animals, plants, microorganisms, the soil ecosystem, and aquatic ecosystems. This study assumes that some amendments differ significantly in their ability to degrade petroleum hydrocarbons. Therefore, this incubation study was conductedto investigate the effect of different types of inorganic and organic amendments (zeolite, bone char, banana leaves biochar, and wood chips biochar) on carbon emissions (CO2-C) and the kinetics of total petroleum hydrocarbons (TPHC) degradation in artificial petroleum-contaminated soil. These amendments wereadded to the soil under study at adose of 3% (w/w). At the end of the incubation period, applying zeolite, bone char, banana leaves biochar, and wood chips biochar to artificial petroleum-contaminated soil significantly reduced cumulative CO2-C emissions compared to the control. The banana leaves biochar significantly decreased TPHC concentrations in artificial petroleum-contaminated soil compared to the control treatment. At the end of the incubation period, adding banana leaves biochar to the soil showed high degradation efficiencies of TPHC which was36% higher than soil before incubation. The effectiveness of applying amendments used in this experiment on the degradation of TPHC increase was in the order of banana leaves biochar > bone char > wood chips biochar > control > zeolite. The second-order model described the kinetics of total petroleum hydrocarbons better than thefirst-order model. Banana leaves biochar added to the soil resulted in a significant increase in the degradation rate constant of total petroleum hydrocarbons (k2) compared with the control. A higher k2 value indicates that TPHC degrades more rapidly. The half-life of TPHC degradation in the soil was decreased significantly by adding banana leaves biochar. According to the second-order equation, the half-lives of control, zeolite, bone char, banana leaves biochar, and wood chips biochar were 4.0, 5.3, 2.7, 1.0, and 3.6 years, respectively. The banana leaves biochar amendment might be cheaper and more environmentally friendly than other organic amendments because it has the high potential for carbon sequestration and remediate petroleum-contaminated soil, which would increase the sustainable use of petroleum-contaminated soil leading to preserving the environment.

Examining the impact of incivility and intolerance on participation in social media discussions: An experimental investigation

This study investigates how incivility and intolerance impact participation in social media discussions by examining the emotions they evoke. An online experiment (N=1,192) was conducted where participants were exposed to civil, uncivil, and intolerant conditions through simulated Twitter conversations. The study aimed to determine which emotions — anger, anxiety, and disgust — are triggered under these conditions and how these emotions influence individuals’ willingness to participate in social media discussions. Results indicated that anger increased participation in uncivil conditions but had a reverse effect in intolerant conditions, reducing participation. Participants exposed to intolerant comments felt higher levels of disgust and anxiety, leading to a significant decrease in their willingness to participate. Conversely, civil discussions did not elicit strong negative emotions and thus did not significantly impact participation. These findings highlight the nuanced effects of different types of incivility on emotional responses and subsequent engagement in online discussions. The study underscores the importance of distinguishing between uncivil and intolerant discourse to understand their distinct impacts on social media participation.

Evaluation of char properties from co-pyrolysis of biomass/plastics: effect of different types of plastics

Evaluation of char properties from co-pyrolysis of biomass/plastics: effect of different types of plastics

Investigation of the Softening Resistance Behavior and Its Mechanism in Cu-Ni-Si Alloys with Discontinuous Precipitates

In this study, isothermal annealing experiments were conducted on copper-nickel-silicon alloys containing continuous precipitates (CP) and discontinuous precipitates (DP) to investigate the effects of different types of precipitate phases on the microstructural evolution and softening temperature during annealing, as well as to analyze the differences in softening mechanisms. The experimental results revealed that the softening temperature of the CP alloy, subjected to 75% cold deformation, was 505 °C. In contrast, the DP alloy achieved softening temperatures of 575 °C and 515 °C after 75% and 97.5% cold deformation, respectively. This indicates that the DP alloy exhibits significantly superior softening resistance compared to the CP alloy, attributed to the distinct softening mechanisms of the two alloys. In the CP alloy, softening is primarily influenced by factors such as the coarsening of the precipitate phase, the occurrence of recrystallization, and the reduction in dislocation density. In the DP alloy, the balling phenomenon of the DP phase is more pronounced, and its unique microstructure exerts a stronger hindrance to dislocation and grain boundary motion. This hindrance effect reduces the extent of recrystallization and results in a smaller decrease in dislocation density. In summary, the DP alloy, due to its unique microstructure and softening mechanisms, demonstrates better softening resistance, providing higher durability and stability for high-temperature applications.

Can mobile apps facilitate more sustainable and healthier diets? A systematic review

Abstract Background One third of all greenhouse gas emissions come from the food system, and current diets are insufficient to meet environmental and public health goals. Digital health apps offer promise to change behaviour, but little is known about the effects of different types of apps. This systematic review assessed the effectiveness of mobile apps in facilitating dietary changes across adults from high-income countries. Methods Seven electronic databases (MEDLINE, EMBASE, PsycINFO, CINAHL, Global Health, GreenFILE, Web of Science), two trial registries (Cochrane Trials and Clinicaltrials.gov), and Google were systematically searched for intervention studies aiming to facilitate dietary change. Interventions were characterised by their use of messaging (e.g., motivational statements) and personalised features (e.g., tailored nutrition advice). Outcomes for three food groups were synthesised through meta-analysis. Results Of the 5261 identified records, 21 met the eligibility criteria and were included. Interventions, recruiting 73,973 participants in total, lasted from three days to six months. Overall positive changes were observed in daily servings of fruit and vegetables (0.59, 95% CI 0.20, 0.99), legumes (0.05, 95% CI 0.01, 0.08), and meat (-0.14, 95% CI -0.23, -0.05), remaining significant after removing non-randomised controlled trials. Changes in fruit and vegetable intake were more pronounced for users of apps with messaging components (0.75, 95% CI 0.18, 1.32) and personalisation (0.67, 95% CI 0.16, 1.19), and meat intake changes were larger for messaging-based apps (-0.21, 95% CI -0.27, -0.15) than apps without these features. Conclusions Our findings suggest to practitioners and policymakers that mobile apps could be a useful and innovative way to change behaviour. Within a wider behaviour change approach, apps could help facilitate diets that meet food-based dietary guidelines, are predominantly plant-based, and are protective of environmental and human health. Key messages • Overall, the results from 21 studies showed positive dietary changes towards more fruits, vegetables, and legumes and less meat consumption following the use of mobile apps. • Apps including messaging and personalised elements appeared most effective and may be important for driving changes in fruits, vegetables, and meat consumption.

The Effect of Algae Supplementation on Anthropometric Indices in Adults: A GRADE-Assessed Systematic Review and Meta-Analysis of Randomized Controlled Trials.

Inconsistent results have been reported regarding the effects of different types of algae, such as Spirulina and Chlorella, on anthropometric indices. To conduct a meta-analysis to assess the efficacy of algae supplementation on anthropometric indices. A comprehensive systematic search was conducted to find relevant articles published from January 1990 to January 2024. Randomized controlled trials (RCTs) comparing algae supplementation with a placebo or control group were included. The risk of bias and certainty of the evidence were evaluated using the Cochrane risk-of-bias tool and the Grading of Recommendations Assessment, Development and Evaluation (GRADE) methodology, respectively. The random-effects model was used to find the Weighted mean differences (WMDs) for each outcome. Of 9079 distinct articles in the initial screening, 61 clinical trials were included in this meta-analysis. Algae supplementation resulted in lower body mass index (WMD, -0.27 kg/m2 (95% CI, -0.42 to -0.13); GRADE rating, low), body weight (WMD: -0.78 kg [-1.18 to -0.38]; GRADE rating, low), waist circumference (WMD, -0.68 cm [-1.27 to -0.10]; GRADE rating, very low), kilograms of body fat (WMD, -0.65 kg [-1.13 to -0.17]; GRADE rating, low), and body fat percentage (WMD, -0.9% [-1.62 to -0.17]; GRADE rating, very low) compared with placebo or controls. Nevertheless, the statistically significant effects of algae supplementation on hip circumference (WMD, -0.20 cm [-0.73 to 0.32]; GRADE rating, moderate), waist to hip ratio (WMD, -0.01 [-0.01 to 0.00]; GRADE rating, moderate), and lean body mass (WMD, -0.30 kg [-0.62 to 0.02]; GRADE rating, moderate) were not observed. Overall, the findings of this meta-analysis indicate supplementation with algae may exert beneficial effects on anthropometric indices. However, due to between-studies heterogeneity and very low to low levels of GRADE for significant outcomes, the results should be interpreted with caution. PROSPERO registration no. CRD42024522923.

Effectiveness of different types of toothbrushes on periodontal health in orthodontic patients with gingivitis: A randomized controlled study

BackgroundThe aim of the study is to evaluate the effectiveness of different toothbrushes in reducing gingival inflammation and dental biofilm removal in gingivitis patients with fixed orthodontic appliances.MethodsFollowing baseline clinical assessments, including the Turesky modification of the Quigley-Hein plaque index (TQHI), gingival index (GI), bleeding on probing (BOP), and probing pocket depth (PPD), all patients received nonsurgical periodontal therapy. Patients were then randomly assigned to one of three groups: conventional toothbrush (C-TB), orthodontic toothbrush (O-TB), or single-tufted toothbrush (ST-TB). Each group received tailored oral hygiene instructions based on their assigned toothbrush type. Clinical assessments were repeated and recorded in the first week, sixth week, and third month.ResultsThirty-six patients with a mean age of 23.14 ± 3.86 (18–32 years) participated in the study. All groups with twelve patients each demonstrated significant improvements in clinical parameters compared to baseline. In the sixth week, the O-TB and ST-TB groups showed significantly greater improvements in TQHI and BOP scores compared to the C-TB group (p < 0.05). By the third month, the ST-TB group maintained significantly lower TQHI and BOP scores, while the O-TB group’s scores became similar to those of the C-TB group. ST-TB and C-TB groups had significantly lower GI scores than the O-TB group in all time points. Although the effectiveness of ST-TB was significantly higher than that of other toothbrushes, all toothbrushes demonstrated lower efficacy in the posterior region.ConclusionsThe ST-TB was shown to be more effective in reducing gingival inflammation over three months, while it demonstrated similar efficacy to the O-TB in dental biofilm removal. Further research is necessary to substantiate these findings and to demonstrate the efficacy of this approach in promoting periodontal tissue health in patients with fixed orthodontic appliances.Trial registrationThis study was registered with the National Library of Medicine Clinical Trials Registry Platform on 19/07/2024 as NCT06510179.

Study on the Destruction and Removal Efficiency (DRE) of Perfluorinated Compound Gases Used in Semiconductor and Display Processes in Korea: DRE and Uncertainty by Scrubber Type

In Republic of Korea, plasma scrubbers are a common technology employed in the semiconductor and display industries. However, there are numerous other types of scrubbers in use. The Intergovernmental Panel on Climate Change (IPCC) does not provide destruction and removal efficiencies (DREs) specific to individual scrubbers, only DREs specific to greenhouse gases, which makes it challenging to consider the specific effects of different types of scrubbers. The semiconductor and display industries in Korea represent a significant market share and are experiencing a steady increase in emissions, underscoring the need for research on GHG-reducing DREs to effectively manage these emissions. In this study, data on Tier 3 DREs developed based on measurements from companies subject to GHG management were collected. The findings indicated that C3F8 gas exhibited a comparable performance to the 2019 IPCC G/L (guideline) for plasma and combustion wet scrubbers, although it surpassed the 2006 IPCC G/L value. The catalytic scrubbers exhibited values that were comparable to the 2006 IPCC G/L, but lower than the 2019 IPCC G/L. The uncertainties were minimal for c-C4F8 gases, both in the absence of consideration of the scrubber type and when each scrubber type was taken into account. In contrast, the uncertainties associated with CF4 gases were relatively high, depending on the scrubber type. Although there are differences between the greenhouse gases in question, failing to take the type of scrubber into account could result in under- or overestimates of certain emissions. Therefore, it would be beneficial to develop coefficients that take this into account, particularly where information on scrubbers by gas type is available.

Mining and urbanization affect river chemical water quality and macroinvertebrate communities in the upper Selenga River basin, Mongolia (revised version).

Mongolia is a country with a quickly growing economy mainly based on the mining of gold, copper, coal, and other minerals. Mining, urbanization, and agriculture impact the water quality in the upper Selenga River basin in northern Mongolia, which is the center of the Mongolian economy. Previous measurements of pollution loads were alarming, but restricted to chemical measurements. Here, for the first time, we combine freshwater biomonitoring and laboratory water quality data across a broad gradient of water quality and land use intensity. We track the effects of different types of pollution on aquatic invertebrates and test their use as bioindicators. We collected water samples, environmental parameters, and macroinvertebrates at 36 sampling sites at the rivers of Tuul, Kharaa, and Orkhon and their tributaries Sugnugur, Boroo, Sharyn Gol, Gatsuurt, and Yeröö. PCA of catchment water quality distinguished three groups of pollutants prevalent at the sites, (1) nutrients, (2) salt ions(Cl-, Na+, Mg2+, So42-, Ca2+) and mining by-products (B, Sr, U, Mo), and (3) (heavy) metals, which often exceeded regulatory standards. We recorded a total of 59 macroinvertebrate taxa belonging to 31 families in seven insect orders plus Amphipoda and Gastropoda. Species diversity declined with higher impact. Five environmental factors structured macroinvertebrate community composition in RDA: elevation of sample location, site total nitrogen, dissolved oxygen, electrical conductivity, and water chemistry. We conclude that macroinvertebrate communities are an appropriate and inexpensive tool for monitoring water quality in Mongolia and suggest government action to establish a long-term monitoring program.

Influence of parental mediation and social skills on adolescents' use of online video games for escapism: A cross-sectional study.

The widespread use of video games among adolescents has raised concerns about their impact on psychological and social development. This study aimed to assess the effects of different types of parental mediation on adolescents' tendency to use video games to avoid negative emotions and determine the relationship between adolescents' interpersonal skills and their reliance on online video games for escapism. Participants were 452 adolescents from 15 middle and high schools. Data on sociodemographic information, gaming habits, parental control of online gaming, interpersonal skills, and reasons for playing online games were also collected. Hierarchical multiple regression was used to analyze the data, with online video game escapism as the dependent variable. Results supported the study's hypothesis that both parental mediation and adolescent interpersonal skills significantly predict the use of online video games for escapism. Higher levels of parental monitoring were associated with a lower tendency of adolescents to use video games to escape negative emotions, while parental mediation supporting autonomy showed a similar but weaker protective effect. At the same time, parental monitoring was also found to be associated with lower interpersonal skills, notably higher impulsivity, narcissism, and stress in social situations. In addition, adolescents with higher levels of impulsivity were more likely to use video games for escapism. These findings highlight the importance of balanced parental involvement and the development of adolescents' social skills to mitigate the risks of problematic online gaming. Interventions should promote effective parental mediation strategies and enhance adolescents' interpersonal skills to reduce their tendency to use video games as a coping mechanism for real-life challenges. Effective parental mediation and improved interpersonal skills are critical for promoting healthier gaming habits and reducing adolescent escapism.

Simulation analysis of different types of balloon dilatation catheters for the treatment of intracranial arterial stenosis.

The application of balloon dilation catheters in the management of intracranial arterial stenosis has been gradually increasing. However, studies on the feasibility and effectiveness of different types of balloons remain relatively scarce. In this study, catheter models of three different materials were designed to simulate balloon crimping,splitting, and dilatation processes. A compliant balloon produces large deformations with poor dilatation and a stress concentration phenomenon. During dilatation, the shear stress generated in the intima and lesion area by the semi-compliant balloon was smaller than that generated by the non-compliant balloon. These results demonstrate the feasibility of using semi-compatible balloons.

Shake table tests on story-to-story pounding between adjacent RC buildings

Pounding between adjacent buildings and their devastating effects have been frequently reported during numerous major earthquakes. Although poundings exhibit more destructive effects on RC buildings compared to steel buildings, the majority of previous experimental studies have mainly concentrated on steel specimens. Furthermore, there has been a notable scarcity of extensive large-scale experimental studies on this subject. Therefore, the primary objective of this study is to experimentally determine the effects of different types of pounding on the seismic responses of RC buildings. To this aim, three half-scaled two-story RC specimens were constructed and were tested. In the tests, three cases were considered: (i) without pounding, (ii) pounding between taller and shorter buildings (slab-to-slab interaction at one floor), and (iii) pounding between buildings with equal heights (slab-to-slab interaction at the two floors). The experimental results showed that pounding and its types played a critical role in structural responses such as floor accelerations, displacements, hysteretic responses, and dynamic characteristics. Additionally, each pounding type led to different damage mechanisms in the specimens.

Are Microfibers a Threat to Marine Invertebrates? A Sea Urchin Toxicity Assessment.

The rise of "fast fashion" has driven up the production of low-cost, short-lived clothing, significantly increasing global textile fiber production and, consequently, exacerbating environmental pollution. This study investigated the ecotoxicological effects of different types of anthropogenic microfibers-cotton, polyester, and mixed fibers (50% cotton: 50% polyester)-on marine organisms, specifically sea urchin embryos. All tested fibers exhibited toxicity, with cotton fibers causing notable effects on embryonic development even at environmentally relevant concentrations. The research also simulated a scenario where microfibers were immersed in seawater for 30 days to assess changes in toxicity over time. The results showed that the toxicity of microfibers increased with both concentration and exposure duration, with polyester being the most toxic among the fibers tested. Although synthetic fibers have been the primary focus of previous research, this study highlights that natural fibers like cotton, which are often overlooked, can also be toxic due to the presence of harmful additives. These natural fibers, despite decomposing faster than synthetic ones, can persist in aquatic environments for extended periods. The findings underline the critical need for further research on both natural and synthetic microfibers to understand their environmental impact and potential threats to marine ecosystems and sea urchin populations.

Nature’s Neighborhood: The Housing Premium of Urban Parks in Dense Cities

Urban parks, a core component of urban landscapes, play a crucial role in mitigating the negative effects of rapid urbanization and achieving sustainable urban development. In densely populated urban environments, providing urban parks fairly and efficiently, taking social preferences into account, is an important challenge. In this regard, we take Hangzhou, China, as an example and use a hedonic pricing model with a difference-in-differences estimator to test the effect of different types of urban parks on housing prices, quantify their respective economic values, and reflect homebuyers’ preferences. The findings indicate that the construction of new urban parks leads to an overall increase in the value of the surrounding real estate to some extent. Specifically, the construction of comprehensive parks and large parks significantly enhances the value of nearby housing, while proximity to new medium-sized parks also results in a housing price premium, albeit to a lesser extent. In contrast, community parks and specialized parks have a less significant impact on housing prices. These findings provide valuable insights for equitable urban development and planning, optimizing the allocation of urban parks and determining investment priorities for different types of parks to enhance the sustainability of the urban environment and human well-being.

Return to Physical Activity in Individuals with Surgical Stomas: A Scoping Review.

In surgically treated individuals with surgical stomas, the return to physical activity is an indicator of quality of life that reflects their well-being. With the aim of synthesizing the available evidence regarding the return to physical activity in individuals with surgical stomas, a scoping review was developed following the methodological approach of the Joanna Briggs Institute and the Preferred Reporting Items for Systematic reviews and Meta-Analyses for Scoping Reviews criteria. Searches were conducted in Medline (PubMed), Scopus, Web of Science, Cinahl, and Lilacs, as well as the meta-search engines TripDatabase and Epistemonikos, using MeSH terms. Included studies were written in Spanish, English, Portuguese, and German, without any limitation on the year of publication. A total of n = 15 studies was included (n = 2 qualitative; n = 2 case reports; n = 1 case series; n = 1 cohort; n = 8 cross-sectional; and n = 1 randomized clinical trial), which showed variability in the quality of the designs. The qualitative studies explored themes such as motivation, beliefs about physical activity, and other lifestyle factors. The case reports described physiological, psychological, and functional implications of returning to physical activity for specific individuals after ostomy surgery. Quantitative studies evaluated the effects of different types of physical activity on quality of life and tolerance to physical activity in these individuals, employing various measurement instruments. In conclusion, the evidence on returning to sports and physical activity after stoma surgery is limited and varied. While studies highlight the importance of social support and self-confidence, they generally lack rigor and primarily focus on adults and oncology patients. There is a need for more research to establish clear guidelines on physical activity type, frequency, and intensity to ensure safe and beneficial outcomes for individuals with stomas.

Stimulating innovation or enhancing productivity? The impact of environmental regulations on agricultural green growth

A comprehensive understanding of the impact of environmental regulations on agricultural green growth is crucial for formulating appropriate policy designs and achieving effective climate change mitigation. This study, based on the Porter Hypothesis framework, aims to propose our hypotheses in the influence of environmental regulations on agricultural green growth. This study first utilizes the Super-SBM model combined with the global Malmquist-Luenberger index to measure agricultural green growth in G20 countries. Subsequently, the study analyzes the impact of environmental regulations on agricultural technological innovation and green growth, highlighting variations among countries with different development levels. The results indicate: (1) Significant differences exist in agricultural green growth among G20 countries, generally exhibiting an increasing trend. (2) Environmental regulations have a significant impact on both agricultural green growth and agricultural technological innovation, but the effects of different types of environmental regulations are various. Furthermore, different conclusions are observed for countries with heterogeneous development levels. (3) There is a lag effect in the impact of environmental regulations on agricultural green growth and technological innovation, highlighting the importance of pre-establishing an environmental policy framework. (4) An inverted U-shape relationship exists between environmental regulations and agricultural green growth, while no such relationship is found in agricultural technological innovation.

Clinical effects of different types of flaps selected according to local conditions in the treatment of diabetic foot defects

BackgroundThe repair of diabetic foot defects (DFD) is a major challenge in clinical practice. The purpose of this study was to investigate the difference in clinical efficacy of different flap techniques in repairing DFD wounds, and to compare the difference in clinical efficacy of anterolateral thigh perforator flap (ALTP) in repairing DFD and non-DFD.MethodsThis study is a retrospective clinical study of different types of flap reconstruction in patients with DFD admitted to our hospital from January 2010 to December 2021. A total of 40 patients with DFD and 43 patients with non-DFD were included in this study. Detailed preoperative basic information, intraoperative details, postoperative complications and long-term follow-up results were collected.ResultThe comorbidities, wound infection and wound duration of DFD group were more serious than those of non-DFD group. In addition, the incidence of complications was higher in DFD group, the wound healing time was longer, the aesthetic evaluation, the functional recovery rate of ankle joint and the sensory recovery effect of flaps were worse.ConclusionIn this study, it is concluded that different flap techniques can obtain better clinical efficacy in repairing DFD wounds. Compared with non-DFD wounds, the postoperative risk of DFD wounds using free ALTP flaps is higher, but the risk can be reduced by reasonable preoperative vascular examination. Free flap can deal with various irregular wounds and provide more options for clinical repair.Level of evidenceIII, Case–control study.

Growth Promotion and In vitro Seed Germination of Lycium barbarum L. (Red Goji) Using Different Types of Cytokinins.

Lycium barbarum L., commonly known as red goji berry, is a widely recognized plant-based medicinal herb with nutritional and therapeutic properties. In this study, the effects of various cytokinins on the germination of L. barbarum seeds and the growth of seedlings were investigated under in vitro conditions. The berries were first surface sterilized and dissected, and the seeds were then cultured on Murashige and Skoog (MS) medium supplemented with different concentrations (0.5, 1.0, and 1.5 mg/L) of 6-benzylaminopurine (BAP), thidiazuron (TDZ), and kinetin (KIN) for 10 weeks at 25±2ºC with a photoperiod of 16 hours and a light intensity of 1000 lux. Upon observation after 10 weeks of culture, all cytokinin-treated cultures produced 100% seed germination as early as 7 days. KIN at 0.5 mg/L produced plantlets with the greatest height (8.40 ± 0.97 cm) with extensive rooting and the greatest total chlorophyll production. Besides, KIN at 1.5 mg/L resulted in the highest number of leaves per plantlet (6.90 ± 0.72), while 1.0 mg/L of TDZ led to the greatest biomass, i.e., fresh weight (FW) of 0.328 ± 0.05 gram and dry weight (DW) of 0.023 ± 0.003 gram. All cytokinins used in this experiment (BAP, TDZ, and KIN) promoted different in vitro growth promotion responses in L. barbarum. The effects of different types and concentrations of cytokinin on the height of plantlets, number of leaves per plantlet, fresh and dry weight, the extent of rooting, and the chlorophyll content were demonstrated to be statistically significant. This study provides valuable insights into optimizing in vitro cultivation techniques for goji berry propagation, which could contribute to developing superior cultivars and increased production of this superfruit in the future. For future perspectives, extended research in elucidating the underlying mechanism associated with cytokinin supplementation is imperative to understanding the roles of cytokinins and optimizing their effects on plant growth promotion.

Effects of Microplastics on Soil N2O Emission and Nitrogen Transformations from Tropical Agricultural Soils

A widespread concern had been there regarding soil ecological and environmental problems caused by microplastic pollution in agricultural soils. A controlled laboratory incubation experiment was performed to examine the effects of different types of microplastics on soil properties, N2O emissions, and nitrogen （N） transformations in tropical arable soils from a pepper-corn cropping system in Hainan Province. Three treatments were done： soil without microplastics （CK） and soil amended with 5% of polyethylene （PE） or with 5% of polybutylene adipate co-terephthalate （PBAT）. The results showed that both types of microplastic addition increased soil pH, soil organic carbon （SOC）, and dissolved organic carbon （DOC） contents, with stronger treatment effects observed for PBAT than those for the PE treatment. In addition, the PE and PBAT treatments increased soil ammonium nitrogen （NH4+-N） contents by 66.07% and 119.65% and decreased nitrate nitrogen （NO3--N） contents by 8.56% and 29.68%, respectively. Compared to those in the CK treatment, the addition of PBAT significantly increased soil N2O emissions by 254.92% （P < 0.05）, whereas that of PE produced no significant effects. Furthermore, both the PE and PBAT treatments increased soil net nitrogen mineralization rate （NMR） and decreased soil net nitrification rate （NNR）, with more obvious treatment effects observed in PBAT than in the PE treatment. PBAT addition increased the abundance of ureC, while PE had no significant effects. Microplastic addition reduced the abundance of nitrifying gene abundances （AOA-amoA, AOB-amoA, and nxrA）, with more obvious treatment effects found in the PBAT treatment. Further, PBAT addition significantly increased the gene abundances of nirK, nirS, nosZ, and fungal nirK （P < 0.05）, whereas the addition of PE had no significant effect on those gene abundances. Soil N2O emissions had positive relationships with NH4+-N intensity, pH, DOC, SOC, and nirS abundance. In conclusion, biodegradable microplastics addition produced stronger influences on soil properties and N transformations than the non-biodegradable one in tropical arable soils and aggravated soil N2O emissions mainly by promoting denitrification.