PLOS ONE
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Preprints posted in the last 30 days, ranked by how well they match PLOS ONE's content profile, based on 4510 papers previously published here. The average preprint has a 5.73% match score for this journal, so anything above that is already an above-average fit.
Zhang, X.; Liu, Z.; Long, J.
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PurposeThis study examined the association between traditional physical practice participation and vision-related quality of life among junior secondary school students and tested the mediating roles of exercise self-efficacy and visual function anomalies within a serial mediation framework. MethodsA four-wave time-lagged survey was conducted among 1,579 students in Grades 7-9 from schools implementing traditional physical practice activities. Variables were assessed at two-week intervals. Mediation effects were tested using the bias-corrected percentile bootstrap method with 5,000 resamples. ResultsThe total effect of traditional physical practice participation on vision-related quality of life was significant ({beta} = 0.591, p < .001). After including the mediators, the direct effect remained significant ({beta} = 0.404, 95% CI [0.348, 0.457]), accounting for 68.36% of the total effect. The total indirect effect was significant ({beta} = 0.187, 95% CI [0.160, 0.218]), representing 31.64% of the total effect. The indirect effect via exercise self-efficacy was significant ({beta} = 0.088, 95% CI [0.068, 0.112], 14.89%), as was the indirect effect via visual function anomalies ({beta} = 0.065, 95% CI [0.048, 0.086], 11.00%). The serial mediation pathway through exercise self-efficacy and visual function anomalies was also significant ({beta} = 0.034, 95% CI [0.025, 0.045], 5.75%). All confidence intervals excluded zero, supporting partial mediation. ConclusionTraditional physical practice participation was associated with vision-related quality of life both directly and indirectly through exercise self-efficacy and visual function anomalies, including a significant serial mediation pathway. The findings highlight the combined psychological and functional mechanisms underlying adolescents vision-related quality of life.
Tetteh, M. N.; Anim-Boamah, O.; Kwashie, A. A.
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ABSTRACT Background: Student nurses satisfaction with their academic programme is crucial for measuring the success of nursing training institutions. However, in Ghana, studies on student nurses' satisfaction have mainly focused on clinical learning, neglecting their satisfaction with the academic programme as a whole. This study therefore, assessed the predictors of student nurses satisfaction with their academic programme. Methods: A quantitative cross-sectional study design was used in the study. A systematic random sampling technique was employed to recruit 241 student nurses from two Nursing Training Institutions in the Eastern Region of Ghana. The Nursing Student Satisfaction Scale (NSSS) was used for data collection and data was analyzed using Statistical Package for Social Sciences (SPSS) version 27 software. Results: Correlation analysis revealed significant positive associations between satisfaction with curriculum (r = 0.583, p<0.001), faculty role (r = 0.650, p<0.001), social interaction (r=0.680, p<0.001), and overall satisfaction with the academic programme. After adjusting for the school of the student nurses, the school environment (B=0.354, p =0.000) and social interaction (B=0.291, p=0.001) emerged as significant predictors of student nurses' satisfaction with their academic programme. Conclusion: The study highlights the need for interventions to enhance the school environment and foster positive social interactions to improve student nurses satisfaction with their academic programme.
Le Brishoual, M.; Tanvier, C.; Dehaut, N.; Miaud, C.; Jumeau, J.
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O_LITemporary fences are used to prevent amphibians from accessing dangerous areas. These fences can be built out of different materials and field studies have shown that some of them still allow for trespassing. C_LIO_LIIn this study we compared, in controlled conditions and using experimental arenas, the effectiveness and efficiency of the three most commonly used materials for temporary amphibian fences (polyethylene tarp, polyethylene netting, and wire meshing) and of the presence of an overhang, on two amphibian species with distinct modes of locomotion (walker/short-distance jumper; long-distance jumper). The polyethylene tarp fence, and fences equipped with an overhang, were the only designs able to stop every individuals for three consecutive trials. C_LIO_LIFences that were not slick or equipped with an overhang could be crossed at any height by both species. C_LIO_LIFor non-climbable fences, long-distance jumper species required a 60 cm high fence to be stopped while the walker/short-distance jumper species only required 20 cm. C_LIO_LIThe walker/short-distance jumper individuals interacted 1.7 times more with the polyethylene netting and wire meshing than the polyethylene tarp, due to either differences in opacity between materials or the impossibility to climb on the tarp. The long-distance jumper species was not deterred by the tarp fence and interacted equally with all materials. C_LIO_LIWhen considering price, durability and ease of use while maintaining effectiveness, the polyethylene netting fences equipped with an overhang were the most efficient option for long-term use. C_LIO_LISynthesis and applications: amphibian fences should systematically be equipped with a 10 cm overhang at their top to ensure their effectiveness. Polyethylene tarp is the best option for short-term use while polyethylene netting is the best option for long-term use. C_LI
Li, X.; Gong, Y.; Jiang, W.; Li, Y.; Zhang, W.; Wang, D.; Wang, H.; LUO, C.
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This retrospective study aims to explore the interactive effects of biological maturation and relative age effect (RAE) on talent identification. 56 male elite soccer players matched for chronological age (15.08{+/-}0.41 years) were studied. Test items included anthropometry (height, body mass, sitting height, leg length, BMI and Quetelet index), physiology (power, speed, agility, speed endurance and aerobic performance), soccer-specific skills (passing, shooting and dribbling), psychology (achievement motivation, orientation and resilience) and biological maturation (APHV) tests. The test results were analyzed independent sample t-test, Pearson correlation analysis, and stratified regression. Conclusion: Biological maturation significantly influences anthropometry (height, weight and Quetelet index), lower limb explosive, and speed (single-leg jump, standing triple jump, and 30-m sprint) in U16 male elite soccer players in Shanghai. The relative age effect shows no significant impact on talent selection indicators, which is attributed to the accumulated training load effect. The mechanisms of biological maturation and RAE in youth soccer talent selection are distinct and operate independently.
Donaldson, F.; Morgenthal, D.; Davidow, A.; Jumare, J.; Akhigbe, P.; Osagie, E.; Omoigberale, A.; Obuekwe, O.; Okoh-Aihe, P.; DOMHaIN study team, ; Richards, V.; Coker, M.
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BackgroundDespite scale-up of antiretroviral therapy (ART), children living with HIV (CLHIV) and children who are HIV-exposed-but-uninfected (CHEU) are at an increased risk of poor growth outcomes compared to children HIV-unexposed-and-uninfected (CHUU). Few studies quantify the magnitude of growth deficits extending into school age in sub-Saharan Africa (SSA). This study examined the impact of perinatal HIV exposure and infection on the growth trajectory of school-aged children in Nigeria. MethodsWithin a prospective cohort, 569 children aged 3-11 years were recruited from pediatric clinics in Nigeria and matched by age and sex based on their exposure or infection status. School-aged children were observed across three time-points at 6-month intervals, during which anthropometric measures, CD4 count, and maternal factors were collected. Z-scores for height-for-age (HAZ), weight-for-age (WAZ), and body-mass-index-for-age (BAZ) were calculated using WHO standards. Longitudinal linear regression analyses using generalized estimating equations (GEE), adjusted for maternal and child covariates, were conducted to compare growth outcomes across groups. ResultsGrowth Z-scores declined until approximately age 8, after which they gradually increased. Across all visits, CLHIV consistently and independently demonstrated lower Z-scores (WAZ ({beta} = -1.04, p <0.001); HAZ ({beta} = -0.67, p <0.001)), followed by CHEU with intermediate but significant impairments (WAZ ({beta} = -0.35, p <0.01); HAZ ({beta} = -0.38, p <0.01)) compared to CHUU. ConclusionStunting remains unacceptably high in CLHIV and CHEU in SSA. The findings suggest a need for immediate paradigm shifts to address persistent growth deficits despite ART and beyond infancy.
Kanwal, A.; Iqbal, R.; Farhan, F.; Kanwal, A.
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Flaxseeds have high nutritive value due to the presence of proteins, lignins (SDG), fatty acids, vitamins, dietary fibers, minerals and carbohydrates. This research was conducted to evaluate the effect of distinct doses of flaxseeds on hematological parameters, immunity and lipid profile of male rabbit. In this research, 60 male rabbits were isolated into four groups, three treatment groups T1, T2 and T3 and a control group T0, with 15 rabbits in each group. The treatment groups were given 4%, 6% and 8% of flaxseeds per daily diet for 45 days. On 15th, 30th and 45th day of experiment, blood samples were collected to examine their hematological parameters. Serum was separated from the collected blood sample to perform ELISA and serum lipid profile test to assess antibody titer and lipid profile of the rabbits respectively. The results indicated a significant reduction in TC, TG, and LDL-C levels in contrast to HDL-C which increased significantly in all treatment groups. Whereas, the statistical analysis of hematological parameters showed an HSD (p[≤]0.05) in flaxseed treated groups. A maximum level of Hb, WBCs, RBCs, MCHC, MCV, HCT, MCH and differential leukocytes count was recorded in high dose group T3 (8% flaxseeds) followed by medium dose group T2 (6% flaxseeds) and low dose group T1 (4% flaxseeds) respectively. There was a significant rise in antibody titer (p[≤]0.05) against RHDV (Rabbit Hemorrhagic Disease Virus) comparable to non-treated group. The outcomes illustrated that flaxseeds as nutritional supplement are undoubtedly beneficial to health and prevent various diseases. Study contributionThis research specifically explores how dietary supplementation with flaxseeds, a widely recognized source of omega-3 fatty acids, fiber, and antioxidants, can influence metabolic health and immune function. These findings have significant implications for nutritional interventions aimed at improving cardiovascular health, immune support, and overall well-being, making it highly relevant to the journals readership. The aim of this study was to investigates the dose-dependent effect of flaxseeds on hematological parameters, lipid profile and immunity of male rabbits. Using a controlled experimental design, male rabbits were fed a diet supplemented with varying doses of flaxseeds over a period of 45 days. Key parameters such as total cholesterol, triglycerides, LDL-C, HDL-C, antibody titer, red, white blood cell, platelet counts, Hb, HCT, MCV. MCHC, MCH and differential leukocytes levels were measured to assess the impact of flaxseeds. The results demonstrated that flaxseed supplementation significantly restored lipid profiles by reducing total cholesterol and triglycerides, LDL-C and increasing HDL-C while also enhancing immune function by rising antibody titer and maintaining healthy blood profiles in the subjects.
Agarwal, A.; Jedmowski, C.; Askin, I.; Chakhvashvili, E.; Meier-Grull, M.; Neumann, J.; Quarten, M.; Rascher, U.; Steier, A.; Muller, O.
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Agrophotovoltaic (APV) systems provide a unique opportunity for improving agricultural land-use efficiency by combining solar energy capture via photovoltaic panels with crop production. However, in-depth information on plant growth patterns within the spatially heterogenous microclimate created by the intermittent shading of APVs is largely missing. In the present study, we implement a customized robot-mounted 3D-multispectral imaging system to closely monitor the growth and spectral reflectance patterns of a conventional soybean cultivar "Eiko" (EK) and a chlorophyll-deficient mutant variety MinnGold (MG) under an APV system. Weekly trends in canopy morphometric features revealed significant variations in plant height, 3D leaf area, light penetration, and canopy volume across the APV field depending on the proximity with the overhead solar panels for both EK and MG, with plants receiving adequate rainfall and intermittent shade performing the best. Furthermore, although spectral indices exhibited variations between EK and MG due to intrinsic differences in pigmentation, symptoms of stress could be detected for both genotypes within rain-shaded areas of the APV plot. Hence, the present investigation depicts the potential for complementary usage of robotics and machine vision for high-precision high-throughput crop monitoring under APVs, which would enable better crop management within such non-homogenous cultivation systems.
Ansari, R. M.; Patade, P.; Modi, S.
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Marine biodiversity documentation from the Mumbai Metropolitan Region (MMR) remains neglected despite the region having diversity of marine coastal habitats. The regions intertidal is one such habitat where species documentation remained heavily deficient due to lack of assessments and general apathy towards the habitat. This study addresses the issue of data deficiency of one of the largest taxa, Gastropoda through a decade long citizen science project, Marine Life of Mumbai. There exist large gaps in taxonomic research that have led to inconsistencies in species identification and inadequate ecosystem representation. This study addresses these issues by focusing on one of the largest taxa, the Molluscan class Gastropoda within the MMR. We present the spatial distribution of gastropod assemblages from 28 rocky, sandy and muddy intertidal sites within the Mumbai Metropolitan Region, on west coast of India. A total of 163 species were recorded from 2164 observations of marine gastropods. Among these, 29 species, 34 genera and one family Limapontiidae are new records for the region. Additionally, this study reports rediscoveries of 7 species from their type locality, with 5 species of Heterobranchs recorded after 78 years: one species from Neogastropoda, Lataxiena bombayana, after 131 years and one from Siphonariida, Siphonaria bassiensis after 31 years, from their type locality. These species are herein illustrated with detailed morphological descriptions and their local distribution on 28 sites in the Mumbai Metropolitan Region. Through this study we elucidate that the citizen science efforts and the subsequent taxonomic analysis provide an effective and low-cost method for filling data gaps from large, understudied geographical areas.
Madhu, N.; Lad, H.; Kempegowda, B.; Sadekar, V.; Deshpande, S.; Kawthankar, N.; Page, N.; Bhat, A.; Shinde, N.; Naniwadekar, R.
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1.The future of species, particularly large-bodied birds, under climate threats, is increasingly unclear. Protected areas (PAs) can mitigate the impacts of global change, but are not completely immune. This makes it imperative to monitor populations even inside PAs. In the forests of the Western Ghats, three hornbill species are found--Malabar Grey Hornbill, Malabar Pied Hornbill and Great Hornbill. Kali Tiger Reserve, of Karnataka state, India, is known for its healthy hornbill populations, yet few systematic surveys have attempted to estimate their abundance, distributions and habitat affiliations. In this study, we documented the distributions of the three hornbills, estimated the density of Malabar Grey Hornbills and assessed correlates of hornbill encounter rates within the reserve. Malabar Grey Hornbills were the most abundant and widely distributed, found in all ranges of the reserve. Gund, Kadra and Phansoli had the most detections of Malabar Pied and Great Hornbills. Encounter rates of Malabar Grey Hornbill were positively correlated with food-tree stem density, those of Malabar Pied Hornbill negatively correlated with basal area, while those of Great Hornbill not significantly associated with any variable. Malabar Grey Hornbills had a density of 5.1 per km2 (mean flock size = 1.2). While encounter rates of Malabar Pied and Great Hornbills were low, these numbers track the breeding season, when vocal activity is low and females are inside nests. This survey represents a partnership between researchers and the Karnataka forest department, aimed towards inculcating the collaborative spirit of research and monitoring.
Asamoah, G.; Ani-Amponsah, M.; Badzi, C. D.
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Culture plays a crucial role in health; family, community, culture, and social conventions all have a significant impact on how an infant with jaundice is treated. Written or unwritten rules govern what parents and the community are allowed to do, which may have a detrimental effect on the neonates care. ObjectivesThe study explored how social expectations affect midwives management of neonatal jaundice at the St Patricks hospital in Maase-Offinso, in the Ashanti region of Ghana. MethodA total of seventeen midwives were sampled purposively using an exploratory descriptive design. Participants were engaged in interviews and focus group discussion after ethical approval was obtained. A semi-structured focus group discussion guide and interview guide was used to collect data. ResultsThe study discovered that the treatment of neonatal jaundice was adversely affected by social pressures, misconceptions, maternal choices, and spiritual views. Mothers and midwives socially approved sunbathing, and there were indications that grandmothers disapproved hospital care for their grandchildren. ConclusionCulture, family and social norms cannot be separated from health especially for the neonate whose means of identification is to belong to a family. Consequently, it is essential to respond to social influences, cultural conventions, and the various cultures of families with a culturally sensitive approach.
Fiifi-Yankson, G. A. M.; Ohene-Marfo, E.; Glozah, F. N.; Nordjo, E.; Mantey, D. A.; Tormeti, D.; Garner, R.; Sackeyfio, J.
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BackgroundPeriodontal disease (PD) and diabetes mellitus (DM) have a well-established bidirectional relationship, affecting glycaemic control and chronic disease outcomes. However, the extent to which medical training supports physician awareness of this association remains unclear especially in resource-limited settings. ObjectiveTo assess exposure to oral health education and to identify predictors of awareness of PD-DM association among physicians. MethodsA cross-sectional study was conducted among 146 physicians managing diabetic patients at a tertiary teaching hospital in Ghana. A structured questionnaire assessed exposure to oral health education, periodontal disease knowledge (score range 0-5), and awareness using a 5-item Likert scale (score range 5-25). Multivariable linear regression identified predictors of awareness. ResultsAlthough 62.1% reported exposure to oral health content during undergraduate training, 59.2% rated its quality as poor. Mean awareness score was 20.6 (SD=2.8). Awareness was independently predicted by years of professional experience (p < 0.001) and periodontal disease knowledge (p = 0.008), but not by structured oral health curriculum exposure. ConclusionAwareness of the PD-DM link was high but was not explained by formal educational exposure. Awareness appears to develop through knowledge of PD and professional experience, suggesting a gap between curricular exposure and competency.
Lafaurie, M. M.; Vargas-Escobar, L. M.; Gonzalez, M. C.; Rengifo, H. A.
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Recognizing the challenges faced by primary caregivers regarding the health of children with congenital craniofacial anomalies (CCAs) contributes to strengthening healthcare programs according to patient[s] and families differential needs. This qualitative study presents the experiences of 25 caregivers of children with CCAs from Bogota and Cali, Colombia, identified from care registries and consultation statistics provideed from public high-complexity healthcare institutions. Grounded in Giorgis descriptive phenomenology and employing thematic analysis, this research utilized semi-structured interviews and focus groups to explore the diagnostic process and its impact, experiences with healthcare services, and the caregivers role and daily care activities. Data were analyzed using MAXQDA(R) qualitative software. Findings highlighted the emotional complexity of caring for childre[n]s health. Challenges included late diagnoses, pessimistic views of the children with CCAs condition by healthcare team members; lack of effective support, information, and guidance from health staff; absence of clear care and referral protocols, and limited access to specific adaptations and timely specialized care for children with CCAs. There were also reduced therapeutic services, and a pronounced gendered caregiving burden when responsibilities fall almost exclusively on mothers. System fragmentation, reflected in deficiencies in communication and a lack of clear, coordinated, and timely pathways of care, as well as the absence of adequate psychosocial support for families, emerged as common structural problems in healthcare services in both geographic settings where this research has been conducted. Gender-sensitive strategies focused on alleviating emotional concerns and the burden of caregiving from diagnosis onward within a patient and family-centered care model are decisive. Improving comprehensive CCAs training for healthcare personnel and making adjustments to care pathways are suggested to contribute to the implementation of inclusive health programs that address the diverse needs of children and their families.
Duarte, T. F.; Dong, X.; Leskovar, D. I.; Ahmad, U.; Tortorici, N.; da Silva, T. J. A.; da Silva, E. M. B.
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Net radiation (Rn) can be estimated using models that apply the Brunt equation for the incoming longwave radiation and air temperature (Tair) for the outgoing longwave radiation under reference conditions. This study aimed to estimate Rn using two previously regionally calibrated Brunt model, thereby eliminating the need site-specific calibration, and to assess whether Tair can be used as a substitute for canopy temperature (Tc) under well-watered crop conditions. Measurements were conducted in sesame and cotton fields during the first year and in a cotton field during the second year. Canopy temperature was measured during the second year, and the calculations were performed at hourly and daily time scales. Regardless of the method used to estimate sky emissivity or whether Tc or Tair was used, errors were greater at hourly time scale. The overall RMSE, MAE, Bias and KGE values at the daily time scales were 11.88, 9.13, 2.53, and 0.91, in the first year, and 13.45, 10.56, 0.10 and 0.74, in the second year, respectively. When using both regionally calibrated Brunt model, Rn simulation performance was superior to that of the Allen/FAO method. The comparison between Rn estimated using Tair and Tc, indicated statistical differences. Nevertheless, linear regression and error metrics showed that these differences were modest, especially at daily time scale. Thus, for practical purposes both regionally calibrated Brunt equations can be used to calculate clear-sky emissivity and improve Rn estimations, and Tair can be used as a substitute for Tc at the daily time scale under well-watered conditions.
Gedefa, S. A.; Landina Lata, D.
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This study was aimed at characterizing the physicochemical analysis of stingless bees honey (SBH) in the Wonchi district, Southwest Shewa Zone, Ethiopia. In this study, a total of 30 stingless bees honey samples were collected from Damu Dagele, Fite Wato, and Warabu Messe sites from underground soils through an excavation of natural nests. Physicochemical characterization of properties and proximate analysis of the honey were performed. The result showed a total mean of 20.12{+/-}1.14% moisture content, 8.62{+/-}2.73 meq./kg free acidity, 1.8{+/-}0.52 mS/cm electrical conductivity, 3.39{+/-}0.32 pH, 40.52{+/-}6.61 mg/kg HMF, 0.83{+/-}0.33% ash, 0.56{+/-}0.25% protein, 0.56{+/-}0.24% fat, and 0.59{+/-}0.23% WISC for physicochemical properties of stingless bees honey. Among sugar profiles of SBH, fructose constituted the highest proportion at 18.87 g per 100 g (53.87%), while sucrose exhibited the lowest concentration at 5 g per 100 g (14.33%). The result showed that the highest constituted mean of mineral composition was observed with potassium (K) of 16.64{+/-}0.257 mg/kg, while magnesium (Mg) showed the lowest concentration of 3.48{+/-}0.17 mg/kg. A substantial correlation was observed between K and Mg, with a correlation coefficient of 0.72 and 0.72, and similarly between K and Calcium (Ca); the correlation was highly significant, exhibiting a correlation coefficient of 0.65. Furthermore, the correlation between fatty and other physicochemical and proximate analyses showed very insignificant correlations. In general, this study showed that the SBH produced in the current study area has good physicochemical properties and moisture and contains high-quality honey, which may help its traditional medicinal uses. The findings of the study further suggests the potentiality of the area for quality honey, and to easily locate priority areas for stingless bee conservation, further detailed studies of other stingless species honey medicinal values are recommended.
Aidoo-Frimpong, G.; Obeng, Y. A.; Abubakar, A. T.; Mensah, W. K.; Anyidoho, D. S.
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Background: Young women in Ghana (18-35 years) remain disproportionately affected by HIV due to intersecting structural and social challenges, including stigma, gendered power dynamics, and limited access to women-centered prevention services. Although HIV self-testing (HIVST) and pre-exposure prophylaxis (PrEP) are effective biomedical prevention strategies, uptake among young Ghanaian women remains low. Barriers include limited awareness, persistent stigma, and a lack of culturally relevant, youth-responsive prevention approaches. The WISE WOMAN study aims to address these gaps by developing and piloting a women-centered HIV prevention intervention co-created with young women in Ghana. Methods: This protocol describes a pilot implementation study of a women-centered HIV prevention intervention that will be delivered via WhatsApp. The intervention is informed by community-based participatory research and human-centered design approaches to enhance cultural relevance and responsiveness to young womens lived experiences. The study will enroll 50 young women aged 18-35 years who will participate in a four-week WhatsApp-based intervention designed to increase HIV prevention knowledge, reduce stigma, and support engagement with HIVST and PrEP. Implementation outcomes, including feasibility, acceptability, and appropriateness, will be assessed using mixed methods. Quantitative data will be collected through baseline and post-intervention surveys, including the PIERS-22 engagement scale, and will be analyzed using descriptive statistics and paired comparisons. Qualitative data from group interactions and post-intervention interviews will be analyzed using thematic analysis. The study has received ethical approval from the University at Buffalo Institutional Review Board (STUDY00009328) and the Ensign Global College Ethics Committee (IRB/EL/AF-02/2025) and is registered at ClinicalTrials.gov (NCT07003789). Discussion: This protocol outlines the design and methods for a digitally delivered, women-centered HIV prevention intervention grounded in participatory approaches. The planned pilot study will generate critical implementation evidence on the feasibility, acceptability, and appropriateness of a WhatsApp-based, co-designed intervention, informing future adaptation, scale-up, and integration of culturally grounded HIV prevention strategies for young women in Ghana and similar settings.
Setchfield, K. J.; Kuppur Narayana Swamy, S. K.; Setchfield, E. J.; Morgan, S. P.; Somekh, M. G.; Wright, A. J.
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Despite questionable accuracy, subjective methods to categorize skin color are heavily relied upon in research and medicine. Objective skin color determination is expensive requiring specialized instrumentation and interpretation. We compare three subjective approaches, i) Fitzpatrick Skin Type Scale (FST), ii) Pantone SkinTone Guide (PST) and, iii) Monk Skin Tone Scale (MST), with objectively measured skin color from a spectrophotometer in 87 volunteers to understand the limitations of each method. In agreement with others, we show that the popular FST questionnaire correlates poorly with the objective approach. However, PST color swatches provide good correlation with spectrophotometer measurements. PST consists of 110+ swatches that are inexpensive and easy to use, however, similar to other reports, the volunteers found the number of swatches overwhelming and/or excessive. We found that the recently introduced MST is not representative of reality with only 3 of the 10 color groups representing our volunteers and published populations of volunteers. In future, we propose using 9 color swatches to split the spectrum of human skin color into 10 groupings (Nottingham Skin Categories - NSC) that are representative of the global population. This new approach would be easy to implement and inexpensive in research, healthcare and cosmetics settings, and maps directly to objective, quantitative, measures taken with a spectrophotometer. For the testing and development of new optical devices, NSC would provide increased comparability between studies and ensure studies are representative of local/global populations. In the clinic NSC would be useful for dermatology, photodynamic therapy and dosage assessment for topical medicine, for example.
Blake, C. K.; Ewa, O. S.; Eckles, E. B.
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Lesbian, gay, bisexual, transgender, queer, intersex, and asexual (LGBTQIA+) students continue to face violence, exclusion, and barriers at school, including in STEM education. A key underexamined factor in diversity, equity, and inclusion (DEI) efforts is the content of the life science curriculum, which is uniquely positioned to reinforce or refute bioessentialist, binary, and heteronormative biases. Outdated science curricula not only conflict with current scientific evidence but can also perpetuate beliefs that contribute to sexism and LGBTQIA+ marginalization. To address this, we designed four gender and sexual diversity (GSD)-inclusive biology activities, aligned with NGSS standards, and informed by inclusive curriculum frameworks. Using a mixed-methods approach, we studied 127 high school students who participated in two or more inclusive biology activities. Surveys conducted before and after implementation showed significant reductions in essential, binary beliefs about sex and gender, and increases in affirming attitudes toward sex and gender diversity. Interviews conducted after implementation further revealed differences between LGBTQIA+ and straight students conceptualizations of biological sex. Our findings demonstrate that even brief curriculum interventions can shift student attitudes, although we hope future studies will explore the impact of sustained interventions. Updating life science instruction is essential for educational equity and scientific accuracy.
Borges, P.; Freire, A. P. F.; Pedroso, M. A.; Spolador de Alencar Silva, B.; Lima, F. F.; Uzeloto, J. S.; Gobbo, L. A.; Grigoletto, I.; Cipulo Ramos, E. M.
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IntroductionIndividuals with COPD can be classified according to their levels of physical activity (PA) and physical capacity (PC). The relationship between nutrition and body composition within these classifications remains unclear. ObjectivesTo compare the body composition and food intake of people with COPD and verify the associations. MethodsCross-sectional exploratory analysis study in which body composition and food intake were assessed in individuals with COPD. Classification was based on six-minute walk test (PC) and accelerometry(PA): Quadrant "can do, dont do" (I-preserved PC, low PA); quadrant "can do, do do" (II-preserved PC, preserved PA). Results72 individuals with COPD, 39 in quadrant I and 33 in quadrant II, with mean ages of (69 {+/-} 6) (67 {+/-} 7), respectively. Group I had a higher proportion of males, whereas group II had a higher proportion of females. A positive trend in skeletal muscle mass (p=0.011) (B= 2.883) and a negative trend in basal metabolic rate (p=0.010) (B=-0.092) for group I. ConclusionBrazilians with COPD classified in quadrants I and II showed similar results in terms of body composition and food intake. A positive trend in skeletal muscle mass was observed for the group I. These findings align with the pathophysiological model of COPD, in which the preservation of muscle mass and adequate protein intake support functional capacity and the maintenance of higher physical activity levels.
Humphreys, D. K.; Giraldi, D. M.; Solomon, S.; Trumbull, E.; Wiebe, D. J.
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Background: Firearms are frequently transferred through inheritance and other non-purchase pathways, leaving many individuals in possession of unwanted guns and limited options for safe disposal. This study examined the characteristics and motivations of individuals relinquishing firearms at community gun buyback and destruction events in Michigan to inform understanding of firearm divestment and disposal pathways. Methods: We conducted an explanatory sequential mixed-methods study of six faith-based gun buyback and destruction events held in southeastern Michigan between June and October 2024. Quantitative surveys (n = 109) captured participant demographics and firearm characteristics. Follow-up qualitative interviews (n = 7) explored participants' experiences and motivations using inductive-deductive thematic analysis. Results: Across six events, 151 individuals relinquished 318 firearms, most of which were handguns. Nearly one-third of participants disposed of firearms on behalf of others, and two-thirds of personally owned guns had been obtained through non-purchase transfers, most commonly inheritance. Participants frequently expressed anxiety about storing unwanted firearms and relief after safe disposal. The most common motivations were concern about misuse (59%) and fear of theft (54%). Interviews identified five intersecting themes: inheritance and unwanted firearms, safety and family protection, evolving views on ownership, barriers to legal disposal, and emotional relief and closure after relinquishment. Conclusions: Many individuals become firearm owners through inheritance or other non-purchase transfers rather than intentional acquisition. Their experiences reveal that unwanted firearms can generate sustained unease and moral responsibility, motivating voluntary divestment when safe, non-punitive options are available. Results: Across six events, 151 individuals relinquished 318 firearms, most of which were handguns. Nearly one-third of participants disposed of firearms on behalf of others, and two-thirds of personally owned guns had been obtained through non-purchase transfers, most commonly inheritance. Participants frequently expressed anxiety about storing unwanted firearms and relief after safe disposal. The most common motivations were concern about misuse (59%) and fear of theft (54%). Interviews identified five intersecting themes: inheritance and unwanted firearms, safety and family protection, evolving views on ownership, barriers to legal disposal, and emotional relief and closure after relinquishment. Conclusions: Many individuals become firearm owners through inheritance or other non-purchase transfers rather than intentional acquisition. Their experiences reveal that unwanted firearms can generate sustained unease and moral responsibility, motivating voluntary divestment when safe, non-punitive options are available.
Mitiku, D. k.; Gessesse, A. D.; Derse, T. K.; Lidetu, T. k.; Asgai, A. S.; Kelkay, J. M.
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BackgroundZero-dose children, defined as those who have not received the first dose of a diphtheria-tetanus-pertussis-containing vaccine (DPT1), are a key indicator of inequitable access to immunization services. Nigeria remains one of the largest contributors to the global burden of zero-dose children. This study estimated the prevalence of zero-dose children aged 12-23 months and identified individual-and community-level determinants using the 2024 Nigeria Demographic Health Survey (NDHS). MethodsA secondary analysis of cross-sectional analysis was conducted using data from 4,711 children aged 12-23 months in the 2024 NDHS kids recode dataset. A multilevel mixed-effects logistic regression model was fitted to account for the hierarchical structure of the data. Four models were compared: null, individual-level, community-level, and combined models. Adjusted odds ratios (AORs) with 95% confidence interval (CI) were used to identify significant determinants at p<0.05. ResultsThe weighted prevalence of zero-dose children was 37.3% (95% CI: 35.1-39.6%). Significant factors included birth order, maternal age, maternal occupation, parental education, household wealth, antenatal attendance, postnatal care utilization, place of delivery, religion, distance to health facilities, and geographical region. Children whose mothers had higher educational attainment, attending antenatal care, deliver in the health facilities, and received postnatal care were significantly less likely to be zero-dose status. Conversely, children from poorer households, those facing distance barriers to health facilities, those belongings to Muslim and traditional religion group and those residing in certain geographical regions had higher odds of zero-dose children, with significant regional variations observed. Conclusionzero-dose vaccination remains highly prevalent in Nigeria and is strongly influenced by socioeconomic disadvantage, maternal healthcare utilization, religion, and regional inequities. Strengthening integrated maternal and child health services and improving access in underserved regions are essential to achieving equitable vaccination coverage.