Frequent Exposure Research Articles

Causal effects of noise and air pollution on multiple diseases highlight the dual role of inflammatory factors in ambient exposures

BackgroundNoise and air pollution are significant environmental threats with proven adverse health effects. However, the causality between these ambient exposures and disease is still largely unknown. This study aims to provide genetic evidence for this gap and investigates the dual role of inflammatory factors, emphasizing the need for integrated public health strategies. MethodsWe included noise and air pollution as exposures, 91 inflammatory factors as mediators, and 26 diseases as outcomes. We explored causal relationships using Mendelian randomization. To ensure the reliability, we screened single nucleotide polymorphisms (SNPs) closely associated with exposure as instrumental variables (IVs), and assessed the pleiotropy and heterogeneity of these IVs. ResultsOur results suggest that “Hearing difficulty/problems with background noise” increases the risk of hypertension, bronchitis, and menopause; loud music exposure frequency increases the risk of bronchitis; noisy workplace raises the risk of hypertension, coronary heart disease, narcolepsy, and irritable bowel syndrome; NO2 increases the risk of myocardial infarction and chronic heart failure; NOx increases the risk of pneumonia and inflammatory diseases of female pelvic organs; and PM10 increases the risk of myocardial infarction, narcolepsy, and type 2 diabetes; PM2.5–10 increases the risk of developing pneumonia and type 2 diabetes. Furthermore, we found that nine inflammatory factors play a mediating role, of which four play a mediating role in increasing the risk of morbidity and eight play a mediating role in protection against ambient exposures. Finally, we selected SNPs significantly associated with exposure and outcome for enrichment analysis. ConclusionsThis study provides the first genetic evidence linking noise and air pollution to various diseases, highlighting the dual mediating role of inflammatory factors. Our findings align with the “One Health” framework, emphasizing the interconnectedness of environmental and human health. Integrated public health strategies considering these complex biological responses are essential for promoting overall well-being.

PM2.5 exposure and household income are associated with lung function abnormalities in children with sickle cell disease.

Cardiopulmonary dysfunction is a major contributor to mortality among persons with sickle cell disease (pwSCD). Despite this, little is known regarding environmental drivers of lung function decline. We hypothesized that environmental and socioeconomic variables have a significant effect on lung function in pwSCD that can be detected by spirometry. We retrospectively analyzed all spirometry results from pwSCD followed in the Pediatric Pulmonology clinic at the Children's Hospital of Philadelphia since 1 January 2016. The study included 349 spirometry tests from 128 patients, primarily "Black or African American" (88%) and male (61%). More frequent exposure to PM2.5 above 25 μg/m3 was associated with higher odds of obstruction. Specifically, when compared to incidence of exposure to PM2.5 above 25 μg/m3 <25th percentile, both pwSCD exposed to 25th-75th percentile and pwSCD >75th percentile had higher odds of obstruction on spirometry (25th-75th: odds ratio [OR]: 9.6, p = .017; >75th:OR: 31.85, p = .002) despite correction for potential confounders. Similarly, median household income below the mean was associated with higher odds of restriction (OR: 4.37; p = .009). We report higher odds of obstruction in pwSCD frequently exposed to PM2.5 concentrations above 25 μg/m3 and higher odds of restriction in pwSCD with lower household income. Our findings link spirometry patterns to modifiable risk factors indicating that there may opportunities for early intervention in pwSCD that have been referred to a pulmonology clinic. Further research is needed to assess if these findings can be generalized to the wider population of pwSCD.

Effective Privacy Protection Strategies for Pregnancy and Gestation Information From Electronic Medical Records: Retrospective Study in a National Health Care Data Network in China.

Pregnancy and gestation information is routinely recorded in electronic medical record (EMR) systems across China in various data sets. The combination of data on the number of pregnancies and gestations can imply occurrences of abortions and other pregnancy-related issues, which is important for clinical decision-making and personal privacy protection. However, the distribution of this information inside EMR is variable due to inconsistent IT structures across different EMR systems. A large-scale quantitative evaluation of the potential exposure of this sensitive information has not been previously performed, ensuring the protection of personal information is a priority, as emphasized in Chinese laws and regulations. This study aims to perform the first nationwide quantitative analysis of the identification sites and exposure frequency of sensitive pregnancy and gestation information. The goal is to propose strategies for effective information extraction and privacy protection related to women's health. This study was conducted in a national health care data network. Rule-based protocols for extracting pregnancy and gestation information were developed by a committee of experts. A total of 6 different sub-data sets of EMRs were used as schemas for data analysis and strategy proposal. The identification sites and frequencies of identification in different sub-data sets were calculated. Manual quality inspections of the extraction process were performed by 2 independent groups of reviewers on 1000 randomly selected records. Based on these statistics, strategies for effective information extraction and privacy protection were proposed. The data network covered hospitalized patients from 19 hospitals in 10 provinces of China, encompassing 15,245,055 patients over an 11-year period (January 1, 2010-December 12, 2020). Among women aged 14-50 years, 70% were randomly selected from each hospital, resulting in a total of 1,110,053 patients. Of these, 688,268 female patients with sensitive reproductive information were identified. The frequencies of identification were variable, with the marriage history in admission medical records being the most frequent at 63.24%. Notably, more than 50% of female patients were identified with pregnancy and gestation history in nursing records, which is not generally considered a sub-data set rich in reproductive information. During the manual curation and review process, 1000 cases were randomly selected, and the precision and recall rates of the information extraction method both exceeded 99.5%. The privacy-protection strategies were designed with clear technical directions. Significant amounts of critical information related to women's health are recorded in Chinese routine EMR systems and are distributed in various parts of the records with different frequencies. This requires a comprehensive protocol for extracting and protecting the information, which has been demonstrated to be technically feasible. Implementing a data-based strategy will enhance the protection of women's privacy and improve the accessibility of health care services.

Post-Devonian re-emergence and demise of stromatoporoids as major reef-builders on a Carboniferous Panthalassan seamount

Abstract Stromatoporoids were major reef-builders during the middle Paleozoic; however, no Carboniferous stromatoporoid reefs have been reported. The Akiyoshi Limestone Group of southwest Japan formed on a seamount in the Panthalassa Ocean from the Mississippian (Visean) to the middle Permian (Capitanian). The Early Pennsylvanian (Bashkirian) reef-core setting was well developed and laterally differentiated into several reef environments. Laminated skeletons made up of cystose or flat laminae and pillar-like vertical structures were abundant and, together with Chaetetes, contributed greatly to reef construction in most reef-core environments. The morphology of the laminated skeletons clearly indicates a stromatoporoid, probably labechiid, affinity. Thus, a lineage of reef-building stromatoporoids reappeared on a Panthalassan seamount in a locally warm-water tropical setting after the Late Devonian extinctions. Ongoing global glaciation may have resulted in enhanced ocean circulation, upwelling, and nutrient supply, especially around shallow-water seamounts, culminating in elevated carbonate saturation, which should have favored hypercalcified stromatoporoids and Chaetetes. The Chaetetes–stromatoporoid reefs remained in the Moscovian, but probably died out during the Kasimovian with intensive global cooling and frequent subaerial exposure, to be replaced by Palaeoaplysina–phylloid algal reefs. The occurrence of Bashkirian reef-building stromatoporoids indicates that Paleozoic stromatoporoids continued as reef-builders long after the Late Devonian extinction, at least in Panthalassa. This occurrence emphasizes the significance of rarely preserved open, but isolated oceanic settings like Akiyoshi for global biogeography and evolution.

Influences of HPV disease perceptions, vaccine accessibility, and information exposure on social media on HPV vaccination uptake among 11,678 mothers with daughters aged 9–17 years in China: a cross-sectional study

BackgroundMothers play a crucial role in influencing their daughters’ HPV vaccination decisions. Addressing barriers to receiving HPV vaccination among mothers of girls may achieve two goals in one strike: increasing vaccination coverage among both mothers and their daughters. This study aims to examine the HPV vaccination uptake and its determinants among mothers of girls in China at both the individual and interpersonal levels.MethodsFrom July to October 2023, a cross-sectional online study was conducted to investigate HPV vaccine refusal for daughters aged 9–17 years among 11,678 mothers in Shenzhen, China. A randomized selection method was employed, targeting 11 primary schools and 13 secondary schools in Shenzhen. The research team invited mothers of girls to participate in an anonymous online survey. Multilevel logistic regression models (level 1: schools; level 2: individual participants) were employed to analyze the data.ResultsAmong 11,678 mothers, 41.1% self-reported receiving at least one dose of HPV vaccination. Through multilevel logistic regression analysis, eight items measuring illness representations of HPV, which refers to how people think about HPV, were associated with higher HPV vaccination uptake (AOR: 1.02–1.14). These items included identity (identifying symptoms of HPV), timeline (whether HPV is acute/chronic), negative consequences, personal and treatment control (whether HPV is under volitional control), concern, negative emotions, and coherence (overall understanding of HPV). In addition, participants refusing HPV vaccines for the index daughters (AOR: 0.82, 95%CI: 0.76, 0.89) had lower vaccine uptake. Perceived more difficulties in accessing the 9-valent vaccines (AOR: 1.06, 95%CI: 1.04, 1.08) and more satisfaction with vaccine-related promotional materials (AOR: 1.50, 95%CI: 1.46, 1.54) at the individual level were associated with higher vaccine uptake. At the interpersonal factors, higher frequency of exposure to testimonials given by others about HPV vaccination on social media (AOR: 1.19, 95%CI: 1.14, 1.25) and thoughtful consideration of the veracity of the information (AOR: 1.11, 95%CI: 1.07, 1.16) were correlated with higher HPV vaccination uptake.ConclusionsThese findings offer essential implications for modifying HPV disease perceptions, addressing difficulties in accessing the 9-valent HPV vaccines, and enhancing health communication needs to improve HPV vaccine uptake among mothers of girls.

Swollen speech: a case study of tongue abscess detected via imaging technology

BackgroundA tongue abscess is a rare but serious condition marked by a localized accumulation of pus within the tongue’s tissues. Despite the tongue’s frequent exposure to trauma, bites, and foreign objects, it typically resists infections. However, an acute lingual abscess can be life-threatening due to the risk of airway obstruction from tongue swelling. Common symptoms include increasing pain, fever, swelling, immobility, edema, and redness of the tongue. The case report aimed to highlight the unusual clinical presentation and location of a deep-seated abscess in the anterior third of the tongue, as well as the radiographic approach to diagnosing the lesion.Case presentationA 30-year-old female patient presented with sudden onset tongue pain and swelling persisting for 4–5 days. Clinical examination revealed a solitary diffuse swelling in the anterior two-thirds of the tongue, approximately 3 × 2 cm in size. Diagnostic imaging, including a plain radiograph, ultrasound (USG), and MRI, was conducted. The patient was hospitalized for incision and drainage of the abscess, followed by a 5-day course of intravenous antibiotics.ConclusionsA tongue abscess, though rare, is a serious condition indicated by tongue swelling, pain, fever, dysphagia, and dyspnea. Diagnosis involves physical examinations and imaging studies like ultrasound or MRI. Immediate treatment includes maintaining airway patency, draining the abscess, and administering broad-spectrum antibiotics. Prompt recognition and treatment are essential to prevent severe complications such as airway obstruction and sepsis. Regular follow-up ensures complete resolution and prevents recurrence.

Effects of ALD Deposition Cycles of Al2O3 on the Morphology and Performance of FTO-Based Dye-Sensitized Solar Cells

In dye-sensitized solar cells (DSSCs), materials classified as Transparent Conducting Oxides (TCOs) have the capacity to conduct electricity and transmit light at the same time. Their exceptional blend of optical transparency and electrical conductivity makes them popular choices for transparent electrodes in DSSCs. Fluorine Tin Oxide (FTO) was utilized in this experiment. The optical and electrical characteristics of TCOs may be negatively impacted by their frequent exposure to hostile environments and potential for deterioration. TCOs are coated with passivating layers to increase their performance, stability, and defense against environmental elements including oxygen, moisture, and chemical pollutants. Because of its superior dielectric qualities, strong chemical stability, and suitability with TCO materials, aluminum oxide (Al2O3) was utilized as a passivating layer for the FTO. In this research work, Al2O3 was deposited via atomic layer deposition (ALD) to form thin mesoporous layers as a passivator in the photoanode (working electrode). The work focuses on finding an appropriate thickness of Al2O3 for optimum performance of the dye-sensitized solar cells. The solar simulation and sheet resistance analysis clearly showed 200 cycles of Al2O3 to exhibit an efficiency of 4.31%, which was the most efficient performance. The surface morphology and topography of all samples were discussed and analyzed.

Knowledge Level and Frequency of Swimming to the Incidence of Otitis Externa in Swimming Athletes in Medan

Highlights: The level of knowledge of respondents who had experienced otitis externa and often do swimming activities had sufficient knowledge about otitis externa. Frequent swimming can cause a person to experience otitis externa. Abstract Introduction: Otitis externa, also called swimmer's ear, is a common disease in swimmers and poses a significant public health problem. Frequent exposure to water for long periods is very susceptible to infection. This study aimed to ascertain the level of knowledge regarding the connection between otitis externa and swimming and investigate whether there was a correlation between the frequency of swimming and the occurrence of otitis externa. Methods: Using a questionnaire, the sample comprised 74 Tirta Prima Medan Swimming Association members in 2022. Apart from evaluating descriptive comparisons of pretest and post-test knowledge levels, this study also conducted a Spearman rank correlation test to determine the correlation between knowledge level and frequency of swimming with the incidence of otitis externa. The chosen significance level (p) was 0.05. Variables were considered related if the p-value was &lt; 0.05 and not considered related if the p-value was &gt; 0.05. The International Business Machines Corporation (IBM) Statistical Package for the Social Sciences (SPSS) version 26.0 for Windows was used for statistical analysis. Results: Of the 74 study participants, pretest knowledge was categorized as follows: good level of knowledge (6.8%) of respondents, sufficient (58.1%), and (35%) poor. In the post-test assessment, respondents showed good (75.7%), sufficient (21.6%), and poor (2.7%) knowledge. The results of the Spearman analysis test showed a significant correlation (p-value = 0.042) between swimming frequency and the incidence of otitis externa. Meanwhile, there was no significant correlation between the level of knowledge about otitis externa and the incidence of otitis externa, with a p-value of 0.785. Conclusion: The level of knowledge for the pretest was sufficient. For the same respondents, the post-test results showed good knowledge. There was a correlation between swimming frequency and the incidence of otitis externa. However, there was no significant correlation between the level of expertise and the incidence of otitis externa at the Tirta Prima Medan Swimming Association.

Daylight exposure and mood in real life: Direct association and mediating role of sleep and routine regularity

ABSTRACT The light/dark cycle is the main external cue to synchronize the human biological clock. Modern lifestyles typically lead to less daylight exposure and blunted 24 h-amplitude. We evaluated the association of outdoor daylight exposure (frequency, duration, regularity and shift) with chronotype estimated by sleep phase, regularity of routines, sleep, well-being (WHO-5), and depressive symptoms (PHQ-9), in a sample of 1,095 participants (81.8% female; 87.9% aged 18–49) surveyed online between July and November 2020. We analyzed direct and indirect associations in daylight-mood relationship with chronotype-estimate, routine regularity, and sleep as mediators. Outdoor daylight exposure was associated with WHO-5/PHQ-9 scores in mediation models, with higher total effects when the exposure was every day (β = 4.13 ± 0.53/ β = −3.81 ± 0.67), for more than 4 hours (β = 3.77 ± 0.91/ β = −3.83 ± 1.31) and during the morning (β = 3.41 ± 0.53/ β = −3.74 ± 0.70) in reference to lack of exposure. Chronotype-estimate, routine regularity score, and sleep problems acted as mediators, while social jetlag and sleep duration did not play an important role in this association. This study advanced the understanding of the complex interplay between light exposure, mental health, and individual characteristics of sleep and other routine regularities, and showed the benefits of optimizing daylight exposure to improve mental health.

Is Ocular Safety in Orthopaedics Overlooked? A Systematic Review of Annual Ocular Radiation Exposure and Protective Measures.

Intraoperative fluoroscopy is increasingly common in orthopaedics, although recent guidelines have reduced the maximum recommended exposure to 20 mSv annually. A systematic review of the literature was conducted to comprehensively assess current adherence to exposure guidelines, identify practice settings at increased risk for exposure, and determine the best practices and personal protective equipment for ocular radiation risk mitigation. In this systematic review we asked: (1) Is the annual amount of eye irradiation received by orthopaedic surgeons below the recommended limit of 20 mSv? (2) What is the effectiveness of leaded glasses in reducing the eye's exposure to radiation? (3) Which imaging setups and operative techniques reduce ocular irradiation? PubMed, Medline, EBSCOhost, and Google Scholar were queried on September 28, 2023, to identify studies assessing intraoperative ocular radiation exposure among orthopaedic surgeons. Studies that measured radiation in or around the eye (such as the bridge of the nose or eyebrows) during orthopaedic procedures were included. Exclusion criteria were duplicate studies, studies that only estimated eye radiation based on the radiation dose recorded at parts of the body distant from the eyes, nonoriginal research, case reports, and articles without full-text English versions available. A total of 393 unique articles were retrieved, and after title, abstract, and full-text screening, 23 dosimetry studies were included, comprising 12 prospective observational studies, 7 phantom models, 1 cadaver model, 2 observational studies, and 1 randomized control trial. Risk of bias was determined via the Methodological Index for Nonrandomized Studies (MINORS) tool. Study quality was generally good to excellent, with noncomparative studies having a mean MINORS score of 14 ± 0 of 16 and comparative studies achieving a mean score of 19 ± 1 of 24, with higher scores representing better study quality. Due to extensive heterogeneity in study design, a meta-analysis was not conducted, with the results rather presented as a narrative summary of key findings. The vast majority of surgeons conducting a variety of orthopaedic and traumatologic procedures were not exposed to a hazardous level of eye irradiation annually, but surgeons who perform a high volume of fluoroscopy-intensive procedures may exceed guidelines. Leaded eyeglasses reduced eye radiation by about 90%, with sport wrap-around glasses offering better shielding than alternatives, although leaded glasses overall were largely underutilized. Positioning mini C-arms in the standard vertical configuration was shown to provide up to a 13-fold decrease in radiation exposure compared with inverted configuration, while standing perpendicular to the fluoroscope further reduced eye irradiation. We found that orthopaedic surgeons who perform a high volume of fluoroscopy-intensive procedures may be at risk of exceeding recommendations on annual radiation exposure, although exposure can be mitigated through various simple strategies. In particular, this analysis found that the use of sport wrap-around leaded glasses, positioning of mini-C arms in the standard vertical configuration, and standing perpendicular to the fluoroscope provide the most effective means of limiting ocular radiation exposure. As ophthalmic radiation exposure presents a potentially important occupational health hazard to orthopaedic surgeons, further investigations of radiation exposure specific to high-volume, fluoroscopy-intensive orthopaedic practices and long-term ophthalmic outcomes will help determine the extent of the potential harm posed by frequent exposure to intraoperative radiation over the span of a career. Level III, therapeutic study.

Measuring the impact of specific surgical complications after ovarian cancer cytoreductive surgery on short-term outcomes

ObjectiveWe sought to measure the impact of specific peri-operative complications after primary cytoreductive surgery on relevant patient outcomes and use of resources.MethodsA cohort of patients with advanced ovarian cancer who...

Overrepresentation of New Workers in Jobs with Multiple Carcinogen Exposures in Canada.

Background. In Canada, understanding the demographic and job-related factors influencing the prevalence of new workers and their exposure to potential carcinogens is crucial for improving workplace safety and guiding policy interventions. Methods. Logistic regression was performed on the 2017 Labour Force Survey (LFS), to estimate the likelihood of being a new worker based on age, industry, occupation, season, and immigration status. Participants were categorized by sector and occupation using the North American Industry Classification System (NAICS) 2017 Version 1.0 and National Occupational Classification (NOC) system 2016 Version 1.0. Finally, an exposures-per-worker metric was used to highlight the hazardous exposures new workers encounter in their jobs and industries. Results. Individuals younger than 25 years had 3.24 times the odds of being new workers compared to those in the 25-39 age group (adjusted odds ratios (OR) = 3.24, 95% confidence interval (95% CI) = 3.18, 3.31). Recent immigrants (less than 10 years in the country) were more likely to be new workers than those with Canadian citizenship (OR 1.36, 95% CI: 1.32, 1.41). The total workforce exposures-per-worker metric using CAREX Canada data was 0.56. By occupation, new workers were the most overrepresented in jobs in natural resources and agriculture (20.5% new workers), where they also experienced a high exposures-per-worker metric (1.57). Conclusions. Younger workers (under 25 years) and recent immigrants who had arrived 10 or fewer years prior were more likely to be new workers, and were overrepresented in jobs with more frequent hazardous exposures (Construction, Agriculture, and Trades).

Daur al-Biah al-Lugawiyyah fī Tarqiyah al-Kafāah al-Żātiyyah li al-Kalām ladai Ṭalabah al-Madrasah al-Ṡānawiyyah

This research The purpose of this research. First, the state of the linguistic environment in increasing speaking self-efficacy among MTs Mambaul Ulum Metro students is to be determined. Second, to find out the application of speaking efficacy training to MTs Mambaul Ulum Metro students. Third, to reveal self-efficacy in speaking to MTs Mambaul Ulum Metro students. This research methodology is a descriptive qualitative study that describes and finds appropriate and precise facts. Moreover, how to collect data using interviews, observation, and written document methods. This study examines the language environment's role in enhancing students' subjective speaking skills at MTs Manbaul Ulum Metro. By employing qualitative research methods, including observations and interviews, the study explores how various aspects of the language environment contribute to students' perceptions of their speaking abilities. The findings reveal that a supportive language environment, characterized by frequent practice opportunities, positive reinforcement, and exposure to diverse linguistic inputs, significantly boosts students' confidence and proficiency in speaking. The study underscores the importance of creating a conducive language learning environment to facilitate effective language acquisition. The language environment system at MT Mambaul Ulum Metro School is very important to increase student's confidence in speaking Arabic through active interaction and correct use of grammar. Social support, a supportive learning environment, the use of technology, and effective learning strategies play a role in building students' self-confidence. Consistent speaking practice and real-world activities such as a language classroom environment. These factors help students develop courage, perseverance, and the ability to face the challenges of learning Arabic.

Prevalence of Academic Burnout Among Nursing Students: A Systematic Review and Meta-Analysis.

Nursing students are prone to academic burnout (AB) as the result of frequent exposure to stressful situations. AB is associated with physical and mental health problems; thus, identifying the burden of AB is crucial for prevention. This review sought to estimate the global prevalence of AB among nursing students. PubMed, Web of Science, EBSCO, SciELO, CUIDEN, LILACS, and BASE databases were searched. The prevalence of AB was estimated using random effects meta-analysis. A total of 34 studies (n = 9,554 students) were included. The pooled prevalence of AB was 35% (95% CI [24%, 47%]; n = 23 studies), with the highest prevalence (58%) observed in Asia. The pooled prevalence of high emotional exhaustion, high depersonalization, and low personal accomplishment was 40%, 23%, and 30%, respectively. AB is more common than previously estimated among nursing students. Academic institutions should consider AB in their core curriculum. [J Nurs Educ. 2024;63(8):533-539.].

An Analysis of pH and Sugar Content of Commonly Prescribed Pediatric Liquid Medications: The Current Indian Scenario.

Oral liquid medications are frequently prescribed to children because they are easier to swallow than other dosage forms. These pediatric liquid medications (PLMs) have sugars added to them for better compliance or as preservatives. Children with chronic illnesses may frequently consume these medications. The presence of sugars and their frequent exposure presents a high risk of dental caries in these children. Additionally, the critical pH can be reached if acids below a pH of 5.5 contact the tooth, causing enamel demineralization. Hence, there was a need to study the sugar content and pH of these medications. Pediatricians and pharmacists in Vadodara city, Gujarat, India, were given a short questionnaire to assess the most prescribed and sold PLMs for analgesics, antibiotics, antiepileptics, multivitamins, and antitussives in the Indian pharmaceutical market. The sugar content and pH of the 15 most prescribed PLMs were assessed with ultraviolet/visible (UV/VIS) spectrophotometry and digital pH meter, respectively. Descriptive statistics were used to analyze the data. Only 1 of the 15 most sold/prescribed medicines did not contain sugar. Among the remaining PLMs, the sugar concentration ranged from 6.1% to 78.7%. The pH of the PLM ranged from 3.6 to 7.3. Sugar was present in 93.3% of the 15 analyzed PLMs and the pH was lower than the critical pH in 80% of them. Medications with high sugar content and low pH can cause caries development. Sugar-free PLMs are preferred alternatives.

Social support utilization's effect on post-traumatic stress symptoms: a Danish cross-sectional study of 383 ambulance personnel.

Social support is considered an important factor in prevention of mental illness. However, little is known about the association between ambulance personnel's use of multiple types of social support and post-traumatic stress symptoms (PTSS). This study aims to assess if number of used social support types predicts PTSS for ambulance personnel. Apart from assessing the main effect of social support utilization, we were interested in investigating if social support utilization moderated the effect of frequency of critical events on PTSS. A total of 383 ambulance personnel completed a survey consisting of validated questionnaires. Hierarchical multiple linear regression analyses were performed to assess the association between frequency of traumatic exposure and utilization of social support and PTSS as outcome variable. Higher number of utilized social support types was associated with higher levels of PTSS (β = 0.15, p <.001). When serving as a moderator of the association between frequency of exposure to critical incidents and PTSS, social support utilization had a significant and positive interaction effect (β = 0.26, p = .049). 307 participants had used 2 or 3 types of informal support during the past year, whereas 81 had used 2 or 3 types of formal support. To our knowledge, this is the first study investigating the relationship between utilization of multiple, concurrent social support types and PTSS. This study suggests that to understand the effects of social support among ambulance personnel, it is necessary to assess the utilization of multiple concurrent support types, contributing factors to social support use, and different patterns of social support utilization that constitutes professional life in ambulance work.

Unsupervised learning as a computational principle works in visual learning of natural scenes, but not of artificial stimuli.

The question of whether we learn exposed visual features remains a subject of controversy. A prevalent computational model suggests that visual features frequently exposed to observers in natural environments are likely to be learned. However, this unsupervised learning model appears to be contradicted by the significant body of experimental results with human participants that indicates visual perceptual learning (VPL) of visible task-irrelevant features does not occur with frequent exposure. Here, we demonstrate a resolution to this controversy with a new finding: Exposure to a dominant global orientation as task-irrelevant leads to VPL of the orientation, particularly when the orientation is derived from natural scene images, whereas VPL did not occur with artificial images even with matched distributions of local orientations and spatial frequencies to natural scene images. Further investigation revealed that this disparity arises from the presence of higher-order statistics derived from natural scene images-global structures such as correlations between different local orientation and spatial frequency channels. Moreover, behavioral and neuroimaging results indicate that the dominant orientation from these higher-order statistics undergoes less attentional suppression than that from artificial images, which may facilitate VPL. Our results contribute to resolving the controversy by affirming the validity of unsupervised learning models for natural scenes but not for artificial stimuli. They challenge the assumption that VPL occurring in everyday life can be predicted by laws governing VPL for conventionally used artificial stimuli.

Violence and its related factors among infertile women attending assisted reproductive technique unit at Al-Azhar University, Cairo

BackgroundViolence against women is a distressing issue particularly when they are infertile. Nevertheless, many women who are infertile and exposed to violence continue their marriage and justify such choice.AimThe current study aimed to assess the prevalence of violence against infertile women and its associated factors.Participants and methodsThis cross-sectional study involved 364 Egyptian women with primary infertility; they were randomly selected from the assisted reproductive technique unit of Al-Azhar University’s International Islamic Center for Population Studies and Research. The data were collected through an interview questionnaire including the Infertile Women’s Exposure to Violence Determination Scale (IWEVDS), socio-demographic, conception, and community-related factors.ResultsModerate/high violence level was detected among 50.5% (95% CI = 45.3- 55.8%) of the studied infertile women, the mean ± SD of total score of IWEVDS was 48.27 ± 21.6. Exclusion was the most frequent type of violence among them. Binary logistic regression revealed that wives who had lower-educated husbands, lived in low-income families, had undergone prior IVF treatment, and who perceived gender inequality acceptance in society were more likely to expose to violence than others (OR = 3.76, 4.25, 2.05, and 2.08 respectively) (P value < 0.05).Conclusion and recommendationsInfertile women have frequent exposure to different types of violence and many factors were implicated in such condition. Despite exposure to violence, infertile women refused divorce because they had no alternative financial sources as well as they were afraid of loneliness. A community mobilization approach to control this problem through a collaboration of all stakeholders is recommended.

Big data for epidemic preparedness in southeast Asia: An integrative study

This integrative study explores the pivotal role of big data in enhancing epidemic preparedness and response strategies in Southeast Asia. The region, characterized by its diverse socio-economic landscape and frequent exposure to infectious disease threats, necessitates innovative approaches to mitigate the impact of epidemics. Big data, with its vast and varied sources, offers unprecedented opportunities to revolutionize epidemic surveillance, prediction, and management. Drawing on a comprehensive review of literature and case studies, this paper delves into the multifaceted applications of big data in epidemic preparedness. It examines the utilization of diverse data sources, including social media, mobile phones, and IoT devices, for real-time monitoring of disease outbreaks and trends. Moreover, it elucidates the role of advanced analytics techniques, such as machine learning and data visualization, in informing timely and targeted response strategies. Furthermore, this study underscores the importance of collaborative efforts and partnerships in leveraging big data for epidemic preparedness. It explores successful initiatives that have demonstrated the effectiveness of data sharing and interdisciplinary collaboration in enhancing epidemic response capabilities across borders. However, the integration of big data into epidemic preparedness initiatives presents various challenges, including data quality issues, privacy concerns, and the need for robust infrastructure and expertise. Addressing these challenges requires concerted efforts from governments, healthcare organizations, and the private sector. In conclusion, this study advocates for continued research, investment, and policy support to harness the full potential of big data in epidemic preparedness. By embracing innovative technologies and fostering collaboration, Southeast Asia can build resilient health systems capable of effectively combating emerging infectious disease threats.

Locality-based social media: The impact of content consumption and creation on perceived neighborhood crime, safety, and offline crime prevention.

Locality-based social media (LBSM) allow members of the community to exchange news, connect with local people, and raise awareness of problems such as crime. This study aims to better understand the influence of LBSM on perceptions of community crime, safety, and crime prevention. Drawing on survey data from 1000 Australians, we assess the extent to which frequency of exposure to crime on LBSM and intensity of engagement on LBSM influence perceptions of crime, safety, and offline crime prevention behaviors. LBSM content creators perceive less crime and feel safer compared to individuals who only consume content on LBSM. Creators of content are also more likely than consumers to engage in offline crime prevention action. Our findings highlight the need to encourage more balanced engagement across all members of community social media. Smaller groups that contain only local residents may be best suited to achieve this outcome.