Community Characteristics Research Articles

Bioretention cell response to the combined stresses of rubber particles and heavy metals: Nitrogen removal performance and microbial community characteristics

Bioretention cell response to the combined stresses of rubber particles and heavy metals: Nitrogen removal performance and microbial community characteristics

Effects of granule disintegration and re-granulation on the physiological characteristics and microbial diversity of anammox granules.

The impact of artificial disintegration and re-granulation of anammox granules on the granule size, Extra-cellular Polymeric Substances (EPS) composition, microbial community characteristics, and the performance of the anammox process was investigated. Before the granule disintegration, the Dv50 and Granulation Index (GI) were 1280μm and 54.62%, respectively. Following two cycles of disintegration and re-granulation process, these values shifted to 463μm and 81.53%, respectively. This indicates that the disintegration and re-granulation process helped to form denser particles. The reduction in total EPS content and the increase in the PS/PN ratio of EPS well reflect these particle characteristics. Additionally, the disintegration and re-granulation process increased the dominance of Kuenenia Stuttgartiensis, which is well adapted to high salinity (2%) conditions, from 11.2% to 68.1%. By artificially disintegrating the granules and inducing re-granulation, it was possible to increase the dominance of specific anammox microorganisms with enhanced resilience of the anammox process.

Heterotrophic nitrification-aerobic denitrification (HNAD) in marine aquaculture wastewater treatment: Nitrogen removal performance, mechanism and microbial community characteristics

Heterotrophic nitrification-aerobic denitrification (HNAD) in marine aquaculture wastewater treatment: Nitrogen removal performance, mechanism and microbial community characteristics

Fermentative profile and bacterial community structure of whole-plant triticale silage (Triticosecale Wittmack) with or without the addition of Streptococcus bovis and Lactiplantibacillus plantarum.

This study aimed to investigate the effects of Streptococcus bovis and Lactiplantibacillus plantarum on the chemical composition, fermentation characteristics, bacterial communities, and predicted metabolic pathways of whole-plant triticale silage (Triticosecale Wittmack). Fresh triticale harvested at the milk stage was ensiled in sterile distilled water (CON), Streptococcus bovis (ST), Lactiplantibacillus plantarum (LP), and a combination of S. bovis and L. plantarum (LS) for 3, 7, 15, and 30 days. During ensiling, the pH and water-soluble carbohydrate (WSC) content in the inoculated groups was significantly lower than those in the CON group (P < 0.05), especially in the LS group (P < 0.05). After 7 days of ensiling, the ST and LS groups had lower (P < 0.05) starch content and higher (P < 0.05) concentrations of lactic acid (LA) and acetic acid (AA). Inoculation with S. bovis and L. plantarum, either alone or in combination, increased the abundance of Lactobacillus and Pediococcus while reducing the abundance of Weissella, Rosenbergiella, Pantoea, and Enterobacter. Metabolic prediction analysis indicated that inoculation with S. bovis enhanced starch and sucrose metabolism during the early stages of ensiling. The abundance of Streptococcus positively correlated with LA (P < 0.05) and AA concentration but negatively correlated with starch content, pH, and propionic acid (PA) concentration (P < 0.05). S. bovis inoculation increased starch hydrolysis and carbohydrate metabolism during the early stages. S. bovis and L. plantarum synergistically improved the fermentation characteristics and bacterial communities of triticale silage. Therefore, S. bovis can be used as an additive or for a fast start-up agent to improve silage fermentation quality.IMPORTANCEEnsiling is a widely used method for preserving fresh forage. Silage quality is determined by the chemical and microbial composition. Studies have shown that S. bovis grew faster than commercial species, thereby creating advantages for other lactic acid bacteria during ensiling. Therefore, we believe that S. bovis and L. plantarum can synergistically improve the fermentation characteristics and bacterial community in silage. However, few studies use high-throughput methods to explain the impact of S. bovis on silage fermentation. Results showed that S. bovis significantly affected the fermentation parameters, bacterial community, and metabolic characteristics of triticale silage. S. bovis and L. plantarum synergistically accelerated the fermentation, reducing pH and WSC while increasing lactic acid and acetic acid concentrations in the early stages of ensiling. Additionally, co-inoculation increased the abundance of Lactobacillus and Pediococcus and carbohydrate metabolism. This study emphasizes the synergistic role of S. bovis and L. plantarum in enhancing triticale silage quality, providing scientific support for novel silage additives.

Influence of water masses and environmental variables on fish community in the south bank of Yangtze River Estuary, China

Fish play a crucial role in the estuarine ecosystem due to their ecological and commercial significance. Consequently, it is essential to study the characteristics of fish communities and their impacts within the estuary. In this study, we employed a single-boat bottom trawl to conduct four fishery resource surveys in April (spring), August (summer), October (autumn), and December (winter) of 2020 at ten sampling sites along the south bank of the Yangtze River Estuary (SBYRE). The primary objective was to assess the influence of water masses and environmental variables on the spatial and temporal distribution and diversity of fish communities in the SBYRE. The results indicated that fish biomass and abundance during summer were significantly higher than those observed in the other three seasons. High-value areas were predominantly located on the nearshore of the SBYRE and the north bank of Hangzhou Bay, a finding also corroborated by the cluster heat map results. Furthermore, the environmental variables in summer differed significantly from those in the other seasons, suggesting that the temporal and spatial distribution of fish was substantially influenced by these variables during the summer months. Mantel test and redundancy analysis demonstrated a positive correlation between the biomass and abundance of fish in summer and the factors of temperature and salinity. The seasonal alternation of dominant fish species contributes significantly to the heterogeneity observed in the temporal and spatial distribution of their communities. The reduced biomass and abundance of fish in spring were attributed to the lower influx of freshwater from the upstream. Seasonal variations in the fronts created by the confluence of multiple water masses in the study area, which play a crucial role in influencing the temporal and spatial distribution of fish communities. Furthermore, the presence of these fronts provides suitable habitats for spawning, feeding, and fattening for various fish species, making them ideal environments for numerous migratory fish. This study enhances our understanding of the temporal and spatial heterogeneity of fish communities in estuarine ecosystems and the factors influencing them, offering valuable insights for the protection and restoration of estuarine marine ecosystems.

Seasonal Variations in Macrobenthos Communities and Their Relationship with Environmental Factors in the Alpine Yuqu River

This study investigated the spatial and temporal variations of macrobenthos community structure in the Yuqu River Basin during the dry and wet seasons due to environmental factors. This study quantified the independent and interactive contributions of hydrophysical, hydrochemical, and climatic factors to the community structure through a variance decomposition analysis (VPA). The study findings indicate that during May (the dry season), factors such as water depth, flow velocity, dissolved oxygen, and air temperature exhibit relatively minor fluctuations, rendering the aquatic environment more stable than in the rainy season. This stability is particularly conducive to the maintenance of the macrobenthic community structure and species diversity, which is especially evident in aquatic insects with nesting habits, such as those belonging to the Trichoptera order (including genera like Glossosoma, Glossosomatidae, and Georodes). In contrast, during August (the rainy season), substantial precipitation alters the thermal conditions of the river, increases flow velocity, raises water levels, and introduces a significant influx of organic matter through sedimentation. This distinctive ecological environment fosters unique adaptive strategies among macrobenthic organisms. Notwithstanding a notable decline in species diversity during this particular phase, there is a concurrent increase in the abundance of individual organisms, which is indicative of the populations’ remarkable capacity to swiftly adapt to environmental heterogeneity. Research has demonstrated that macrobenthic communities within the Yuqu River Basin adopt pronounced adaptive tactics that vary significantly between seasons. During the dry season, these macrobenthic fauna rely heavily on the stability of their physical habitat. In stark contrast, they are compelled to navigate and cope with the more intricate and dynamic changes in hydrological and chemical conditions that characterize the rainy season. The presented results uncover the sensitive responsiveness of the macrobenthic fauna to seasonal hydrological and environmental fluctuations in high-altitude river systems and their adaptive strategies under diverse ecological stressors. Arthropods, in particular, exhibit a marked sensitivity to seasonal hydrological and environmental changes. This study delves into the biodiversity of high-altitude river ecosystems, analyzing the ecological environment and the distribution patterns and seasonal variation characteristics of macrobenthic communities. This study aims to examine how diverse seasons and hydroclimatic conditions modulate the composition of macrobenthic assemblages within the tributaries and principal channels of high-altitude river systems, thereby establishing a foundational reference for future water ecosystem assessments in such regions.

Characteristics of the macroinvertebrate community structure and their habitat suitability conditions in the Chishui River

IntroductionAs an important tributary of the upper Yangtze River without dams, the study of the macroinvertebrate community structure and habitat suitability conditions in the Chishui River holds significant implications for water ecological conservation and restoration.MethodsIn order to explore the species composition, community characteristics and their ecological needs of macroinvertebrates in the Chishui River, 26 sampling sites were deployed in the Chishui River in this study in March (dry season), July (wet season), and November (normal season) of 2023 and performed community structure analysis.ResultsA total of 153 macroinvertebrate taxa were identified, with 62 taxa recorded in the dry season, 46 in the wet season and 115 in the normal season. The assemblage was predominantly composed of aquatic insects from the EPT group (Ephemeroptera, Plecoptera and Trichoptera). The results of ANOSIM analysis indicate that the species composition of macroinvertebrates varies significantly across different water periods. The Shannon-Wiener diversity index and Margalef index were significantly higher during the normal season compared to the dry and wet seasons. In contrast, the Pielou index and Simpson index remained relatively stable, suggesting a higher level of evenness in community structure across the different water periods. Based on the habitat suitability curves, Corbicula fluminea and Heptagenia prefer environments with high flow velocities and substrate particle sizes (D50) smaller than 300 mm. Hydropsyche sp.1 and Baetis thrive in environments with medium to low water depths, high flow velocities, and D50 ranging from 100 to 300 mm. Caridina favor deeper waters, low flow velocities, and larger substrate particles. The GAM fitting results revealed that the number of macroinvertebrate taxa increased with rising pondus hydrogenii (pH) and electrical conductivity (EC) levels. Species richness initially declined and then rose within certain thresholds of total nitrogen (TN) and total phosphorus (TP) concentrations. The optimal conditions for macroinvertebrate communities in the Chishui River were determined to be a DO concentration of 9.8 mg/L and an NH3-N concentration of 0.12 mg/L.DiscussionOverall, the macroinvertebrate community structure in the Chishui River is significantly influenced by factors such as water quality, flow velocity, and substrate particle size, and it demonstrates strong adaptability to seasonal variations.

Decoupled responses of soil microbial diversity and ecosystem functions to successive degeneration processes in alpine pioneer community.

Many alpine ecosystems are undergoing vegetation degradation because of global changes, which are affecting ecosystem functioning and biodiversity. The ecological consequences of alpine pioneer community degradation have been less studied than glacial retreat or meadow degradation in alpine ecosystems. We document the comprehensive responses of microbial community characteristics to degradation processes using field-based sampling, conduct soil microcosm experiments to simulate the effects of global change on microorganisms, and explore their relationships to ecosystem functioning across stages of alpine pioneer community degradation. Our work provides the first evidence that alpine pioneer community degradation led to declines of 27% in fungal richness, 8% in bacterial richness, and about 50% in endemic microorganisms. As vegetation degraded, key ecosystem functions such as nutrient availability, soil enzymatic activity, microbial biomass, and ecosystem multifunctionality progressively increased. However, soil respiration rate and carbon storage exhibited unbalanced dynamics. Respiration rate increased by 190% during the middle stage of degradation compared with the primary stage, and it decreased by 38% in the later stage. This indicates that soil carbon loss or emission increases during the mid-successional stage, whereas in later successional stages, alpine meadows become significant carbon sinks. Compared with microbial community characteristics (such as richness of total and functional taxa, and network complexity), community resistance contributes more significantly to ecosystem functions. Especially, the bacterial community resistance is crucial for ecosystem functioning, yet it is greatly impaired by nitrogen addition. Based on microbial network, community assembly, and community resistance analyses, we conclude that fungi are more vulnerable to environmental changes and show smaller contributions to ecosystem functions than bacteria in degrading alpine ecosystems. Our findings enhance the knowledge of the distinct and synergistic functional contributions of microbial communities in degrading alpine ecosystems and offer guidance for developing restoration strategies that optimize ecosystem functioning of degraded alpine plant communities.

Stability characteristics of bacterial and protistan communities along an estuarine continuum: Diversity, composition and co-occurrence networks.

Estuarine ecosystems have been threatened by increasing anthropogenic and natural pressures, yet the integral understanding of their stability characteristics of microbial communities at taxonomic, habitat, and spatial scales remains limited. In this study, the Mulan River estuary in southeastern China was selected to compare the stability characteristics of bacterial and protistan communities in water and sediments over three hydrological periods, and to explore their spatial variations along the estuarine continuum from river to ocean. The potential driving mechanisms of stability characteristics were also explored. Results revealed that the estuarine ecosystem displayed varied stability at taxonomic, habitat, and spatial scales, separately. On the whole, protistan communities had a lower stability than bacterial communities in both water and sediments, with the higher coefficients of variation in alpha diversity (av. 0.82), the higher Bray-Curtis distances of community compositions (av. 0.98), and the lower robustness of networks (av. 0.23). Compared to the sediments, the lower stabilities of two taxa in water were also indicated via the above three indices. Along the estuarine continuum, the stability of bacterial communities in the middle reach was lowest, but the stability of protistan communities was lowest in the up reach. The null model and network analysis suggested that the assembly processes with stronger variable selection and homogeneous selection, coupled with higher positive interaction (r>0.7) of microbial communities jointly accounted for the lower stabilities in the up and middle estuarine reaches. The partial least squares path model suggested that total nitrogen, total phosphorus, and dissolved oxygen controlled the community stability by influencing microbial assembly and interaction in the up and middle reaches. This study provides new insights on the varied stability characteristics of different microbial communities along the estuarine continuum, which are helpful for maintaining estuarine ecological function and formulating management strategies.

Mindful mindsets and rural community characteristics in promoting sustainable rural tourism and facilitating the tangible implementation of the circular economy

PurposeThis study aims to examine the role of mindful consumption in promoting rural sustainability, particularly in the context of tourism in Muang Kaen Community, Chiang Mai, Thailand, by establishing a robust circular economy.Design/methodology/approachThe data were collected through in-depth interviews with 28 informants who are tourism stakeholders regarding sustainable development, i.e. government officers, business owners, community leaders and community members in Muang Kaen, to achieve the data triangulation. A thematic analysis of the interview data was employed in this data set.FindingsThe findings demonstrate three key themes for driving sustainable community development: a sense of community, leadership and embodiment. At an individual level, local community members co-create a sense of community through Thainess, which gradually forms the social commitment to caring for neighbors, the community, and the environment. Carefulness also relates to another theme, “leadership” – social capital, which drives mindful behavior among the community members. Both situational and official leaders are key persons in forming a culture of sustainability within the community. Finally, the community can achieve sustainable goals by driving from the individual to the collective level through the embodiment.Research limitations/implicationsThis single-case study warrants further examination across different communities to generalize the findings to broader circumstances.Originality/valueThis study has shed light on how rural tourism can drive sustainable development through a circular economy and mindful consumption.

Association of Community Characteristics as Measured by Social Deprivation Index Score with Prenatal Care and Obstetrical Outcomes.

We aimed to determine the relationships between socioeconomic disadvantage, as measured by the Social Deprivation Index (SDI), and prenatal care (PNC) utilization, obstetrical outcomes, and neonatal complications. All spontaneously conceived singleton deliveries of nulliparous gravida with residence zip code available (n = 4,786) were identified in a population-based database. Deliveries were assigned SDI scores based on preconception zip code. SDI scores (1-100) are a composite measure of seven community demographic characteristics of poverty, education, transportation, employment, and household composition. SDI scores were categorized into quartiles and grouped for analysis (Q1 [n = 1,342], Q2 + 3 [n = 1,752], and Q4 [n = 1,692]) with higher scores indicative of greater disadvantage. Statistical analysis was performed using a generalized linear mixed method. Among our cohort, gravida in the lowest (least-deprived) SDI quartile (Q1) were older, had lower prepregnancy body mass indices, and were more likely to receive PNC from a physician specializing in Obstetrics and Gynecology. Gravida residing in the highest (most-deprived) SDI quartile (Q4) attended fewer prenatal visits (mean [standard deviation] 11.17 [2.9]) than those living in Q1 (12.04 [2.3], p < 0.0001). Gravida in Q4 were less likely to receive sufficient PNC compared with those in Q1 (52 vs. 64.2%, p < 0.0001) and were more likely to fail to achieve appropriate gestational weight gain (GWG) (19.6 in Q4 vs. 15.9% in Q1, p < 0.01). No significant differences in composite maternal (CMM) or neonatal morbidity (CNM) were associated with SDI quartile. Outer quartile social deprivation was associated with higher proportions of primigravida not meeting recommendations for GWG and attending fewer prenatal visits, but it did not affect CMM or CNM. Improving care access and providing nutritional support to all gravida are likely important steps toward health equity. · Neighborhood social deprivation was not associated with composite maternal or neonatal morbidity.. · Community-level deprivation was associated with decreased PNC utilization.. · It is important to understand the underlying disparities that lend to suboptimal patterns of PNC.. · Doing so may inform programs that promote favorable birth outcomes in at-risk communities..

From Young to Over-Mature: Long-Term Cultivation Effects on the Soil Nutrient Cycling Dynamics and Microbial Community Characteristics Across Age Chronosequence of Schima superba Plantations

Optimizing forest management requires a comprehensive understanding of how soil properties and microbial communities evolve across different plantation ages. This study examines variations in soil nutrient dynamics, enzyme activities, and bacterial communities in Schima superba Gardn. &amp; Champ plantations of 10, 15, 27, 55, and 64 years. By analyzing soil from depths of 0–20 cm, 20–40 cm, and 40–60 cm, we identified significant age-related trends in soil characteristics. Notably, nutrient contents, including total organic carbon (TOC), total phosphorus (TP), total carbon (TC), total nitrogen (TN), and nitrate nitrogen (NO3−-N), as well as soil water content (SWC), peaked in 55-year-old mature plantations and decreased in 64-year-old over-mature plantations. Enzyme activities, such as urease, sucrase, and acid phosphatase, decreased with soil depth and exhibited notable differences across stand ages. Microbial community analysis indicated the predominance of Acidobacteria, Chloroflexi, Proteobacteria, Actinobacteria, and Verrucomicrobiota in nutrient cycling, with their relative abundances varying significantly with age and depth. Mature and over-mature plantations exhibited higher absolute abundances of functional genes related to methane metabolism, nitrogen, phosphorus, and sulfur cycling. Reduced calcium ion levels were also linked to lower gene abundance in carbon degradation, carbon fixation, nitrogen, and phosphorus cycling, while increased TOC, NH4+-N, NO3−-N, and AP correlated with higher gene abundance in methane metabolism and phosphorus cycling. Our findings suggest that long-term cultivation of Schima superba enhances soil nutrient cycling. Calcium ion was identified as a significant factor in assessing soil properties and microbial dynamics across different stand ages, suggesting that extended plantation rotations can improve soil health and nutrient cycling.

Superiority of native seed core microbiomes in the suppression of bacterial wilt disease

IntroductionNative endophytic microorganisms in tobacco seeds are closely related to their resistance to Ralstonia solanacearum (R. solanacearum) infections. However, the role of the native seed core microbiome in the suppression of bacterial wilt disease (BWD) remains underexplored.MethodsThe characteristics of endophytic bacterial communities in both resistant and susceptible tobacco varieties were characterized using high-throughput sequencing technology.ResultsThis study found Paenibacillus as a potential microbial antagonist against BWD based on its significantly greater presence in BWD-resistant tobacco varieties, with a relative abundance that was 83.10% greater in the seeds of resistant tobacco than in those of susceptible varieties. Furthermore, a Paenibacillus strain identified as Paenibacillus odorifer 6036-R2A-26 (P. odorifer 26) was isolated from the seeds of the resistant variety. Following irrigation treatment with P. odorifer 26, the BWD index was reduced by 51.08%. Additionally, this strain exhibited significant growth-promoting effects on tobacco. It significantly increased the fresh weight of the tobacco plants by 30.26% in terms of aboveground weight, 37.75% in terms of underground weight, and 33.97% in terms of aboveground dry weight. This study highlights the critical role of Paenibacillus in tobacco seeds in the suppression of BWD, which may result from its antagonistic and growth-promoting properties.DiscussionThe results of this study revealed differences in the structural characteristics of endophytic bacterial communities between resistant and susceptible tobacco varieties, with groups such as Paenibacillus potentially playing significant roles in resisting BWD. These findings highlight the superiority of seed endophytic microorganisms. In the context of declining plant disease resistance and the spread of bacterial wilt, core endophytic microorganisms in seeds may emerge as a viable option for enhancing the productivity of agricultural ecosystems.

Relationship between community characteristics and impact of calorie labeling on fast-food purchases.

The objective of this study was to evaluate potential sources of heterogeneity in the effect of calorie labeling on fast-food purchases among restaurants located in areas with different neighborhood characteristics. In a quasi-experimental design, using transaction data from 2329 Taco Bell restaurants across the United States between 2008 and 2014, we estimated the relationships of census tract-level income, racial and ethnic composition, and urbanicity with the impacts of calorie labeling on calories purchased per transaction. Calorie labeling led to small, absolute reductions in calories purchased across all population subgroups, ranging between -9.3 calories (95% CI: -18.7 to 0.0) and -37.6 calories (95% CI: -41.6 to -33.7) 2 years after labeling implementation. We observed the largest difference in the effect of calorie labeling between restaurants located in rural compared with those located in high-density urban census tracts 2 years after implementation, with the effect of calorie labeling being three times larger in urban areas. Fast-food calorie labeling led to small reductions in calories purchased across all population subgroups except for rural census tracts, with some subgroups experiencing a greater benefit.

Moss Cover Modulates Soil Fungal Functional Communities and Nutrient Cycling in Alpine Forests

Moss–cyanobacteria associations serve as significant nitrogen fixers and represent the primary nitrogen sink in boreal forests. Fungi, which are essential for soil biogeochemical cycling, have community structures intrinsically linked to forest ecosystem health and productivity. Using high-throughput sequencing, we investigated differences between moss-covered and non-moss soils in two alpine forests (both plantation and natural forests) by examining soil nitrogen contents, fungal community structure, composition, and functional guilds. Results demonstrated that moss cover enhanced soil nutrient contents, including total carbon, total nitrogen, and inorganic nitrogen. It also altered fungal community characteristics, resulting in higher Chao1 and Shannon diversity indices, as well as a more complex fungal network. Notable changes in functional guilds included an increase in saprotrophic fungi abundance and a decrease in ectomycorrhizal fungi. Our findings support the concept that moss cover creates distinct soil environments: moss-covered soils attract decomposers and nutrient-mobilizing fungi (particularly saprotrophs and ectomycorrhiza), while non-moss soils favor ectomycorrhizal fungi that relieve nutrient limitation through extensional mycelial networks. These findings highlight the critical role of moss cover in sustaining forest soil health and resilience, positioning it as a cornerstone of carbon and nutrient cycling within forest ecosystems.

A discrete choice experiment with health professions trainees to improve the urban-rural health care access disparity in Appalachia: Study protocol.

Globally, those who live in rural areas experience significant barriers to accessing health care due to a maldistribution of health care providers. Those who live in rural areas in the Appalachian region of the United States face one of the worst shortages of health care providers despite experiencing more complex health needs compared to Americans in more affluent, urban areas. Prior research has failed to identify effective solutions to narrow the provider maldistribution, despite it being a policy focus for decades. More work is needed to better understand the complex, multidimensional process in which health care providers select jobs and how job, community, and providers' intrapersonal characteristics influence job selection. This paper is a protocol for a study aimed at identifying effective policies and incentives to improve recruitment of healthcare providers for their first job in rural Appalachia. We will use rigorous, theoretically grounded discrete choice experiment methodology (DCE) to accomplish the study's objective. The main outcome will be the relative importance of alternative community and job characteristics for trainees' choices of jobs in rural Appalachia. secondary outcomes of interest will be trade-offs that these trainees make when selecting a job, described in the form of marginal rates of substitution (mRS). Participants include medical residents and fellows, PA students and NP students in their final year of training. The choice context will be the recruitment of these trainees for their first job. Data will be analyzed using mixed logit analysis. Results from this DCE will improve our understanding of the job selection process for health care providers. The identification and prioritization of predictors of trainees' rural job choices will allow for the development of policies and incentives that will enable policymakers and health care systems to recruit more providers to rural and underserved areas.

Community characteristics and relationship between gut microbiota and intratumoral microbiota in hepatocellular carcinoma

Community characteristics and relationship between gut microbiota and intratumoral microbiota in hepatocellular carcinoma

Characterizing Vitamin K Refusal in Term Hospital-Born Infants in Minnesota, 2015-2019.

Some Minnesota clinicians perceive that the incidence of prophylactic vitamin K refusal is increasing, yet the actual incidence and which populations are most likely to refuse is unknown. Our objective is to identify the incidence of vitamin K refusal and to characterize the maternal-newborn dyads with increased refusal rates. This retrospective multi-institution study analyzed vitamin K refusal in newborns born from 2015 to 2019. Maternal-newborn dyad delivery and community characteristics (language, religion, population size) were collected and analyzed by univariable and multivariable logistic regression. Among 102 451 term infants, 1.3% did not receive intramuscular vitamin K. Refusal increased from 0.9% in 2015 to 1.6% by 2019 (P < .0001). In multivariable analysis, factors associated with increased likelihood of refusal included female sex (odds ratio [OR] 1.22, 95% CI 1.09-1.36), exclusive human milk feeding at hospital discharge (OR 3.46, 95% CI 2.87-4.17), parity greater than 0 (OR ranging from 1.32 [95% CI 1.13-1.54] for parity of 1, to 3.70 [95% CI 2.80-4.90] for parity of 4), having a midwife at delivery (OR 1.70, 95% CI 1.45-2.01), public insurance (OR 1.84, 95% CI 1.60-2.12), and Russian language (OR 4.92, 95% CI 2.90-8.35). Some religious identities had higher refusal rates (ie, Pentecostal 7.0%, Baptist 3.3%). In a cohort of Minnesota hospital-born infants, the incidence of vitamin K refusal increased between 2015 and 2019. We identified large populations (eg, public insurance, exclusive human milk feeding) and smaller discrete communities (eg, Russian, Pentecostal) with opportunities for increasing prophylactic vitamin K acceptance through targeted community conversations.

Study on the characteristics of bird communities in urban river corridor parks and green spaces

Study on the characteristics of bird communities in urban river corridor parks and green spaces

Analisis Kegagalan Strategi Kampanye Ridwan Kamil - Suswono dalam Pilkada 2024

The 2024 Jakarta Governor and Deputy Governor Election served as a critical stage for the Ridwan Kamil and Suswono duo, supported by major political parties through the Koalisi Indonesia Maju (KIM) Plus coalition. Despite broad political backing and leveraging communication strategies across social media, traditional media, and grassroots engagement, the pair failed to secure victory. This study examines their political communication strategies, including media utilization, public response, and challenges faced, such as negative perceptions due to past scandals, black campaigns, and local resistance to their identity. Using a qualitative descriptive approach based on desk reviews, the study finds that while Ridwan Kamil-Suswono managed to capture public attention with flagship programs like Kartu Jakarta Maju and Riverway, obstacles such as smear campaigns and misalignment with Jakarta's local culture were key factors in their defeat. The findings highlight the importance of synergy between political communication strategies, understanding local community characteristics, and effective image management in winning political contests.