Geographical Comparisons Research Articles

Causes of different goiter rates with the same iodine deficiency among the pastoral and agricultural populations of Tibet: a geographical comparison

BackgroundThe residents of both the agricultural and pastoral areas of Tibet share the same iodine deficiency and iodine nutrition, but the rate of thyroid goiter was significantly higher in the agricultural areas than in the pastoral areas. This project sought to determine why the populations in the iodine-deficient pastoral areas show a lower rate of thyroid goiter.MethodsFood frequency questionnaires (FFQs) and 24 h history recalls were adopted to investigate the dietary patterns of the residents of the agricultural and pastoral areas. Meat and milk samples were collected to measure their inorganic iodine, total iodine and thyroid hormone contents using ICP-MS, AsIII-Ce4+ catalytic spectrophotometry and the Siemens’ chemiluminescence method, respectively. The intake of protein, and the microelements, selenium and iron, was calculated according to their content in the food.ResultsThe per capita daily intake of meat, dairy, and cereal in the pastoral areas was 116.7, 216.7, and 433.3 g, respectively, which are significantly higher than those in the agricultural areas (50.0, 72.2, and 375.0 g, respectively) (p < 0.05). The content of thyroid hormone in dried beef and milk in the pastoral areas was 62.6 and 13.5 μg/kg, respectively, which was significantly higher than those in the agricultural areas (25.1 and 4.1 μg/kg, respectively) (p < 0.05). The daily intake of thyroid hormone, protein and microelements, selenium and iron from foods by the residents of the pastoral areas were 10.5 μg, 99.6 g, 30.0 μg and 15.8 mg respectively, which was significantly higher than those in the agricultural areas (1.79 μg, 56.5 g, 23.8 μg and 13.2 mg, respectively) (p < 0.05).ConclusionsThe significantly high intake of the food-borne thyroid hormone by the residents of the pastoral area could be the main reason the residents in the pastoral areas show a lower rate of thyroid goiter than those in the agricultural area. Moreover, the relatively high intake of protein and trace elements, selenium and iron by residents in the pastoral area could be another important factor for reducing the goiter rates.

Insect community composition varies between temperate and tropical regions but functional structure remains conserved

Insect community composition varies between temperate and tropical regions but functional structure remains conserved

Travelers' Tales: Their Values and Virtues

Travelers' Tales: Their Values and Virtues

European university students' mental health during Covid-19: Exploring attitudes towards Covid-19 and governmental response.

The effects of Covid-19 have been felt worldwide and one population that are of increasing concern are university students. University students have endured unique and drastic changes to their everyday and academic lives. It is important to understand how university students in different parts of the world have been affected by the Covid-19 pandemic and how it has affected their mental health? A cross-sectional study was conducted during the first wave of Covid-19, in May 2020 with 2,006 university students from the UK, Italy, Germany and Spain. Participants were recruited online and were asked to complete a series of standardised measures of psychological distress, anxiety, flourishing and wellbeing. Attitudes towards Covid-19 were measured using a new scale. The factor structure and reliability of this new scale was confirmed using this European sample. Results indicated that all university students were suffering from poor mental health, considerably below pre-pandemic norms. There were many geographical differences in the way that university students perceived the Covid19 pandemic, in terms of their fears, anxieties, loneliness and positivity. There were also significant mental health comparisons between students from the UK, Italy, Germany and Spain. Student beliefs that their government had provided effective leadership during the Covid-19 pandemic were strongly related to numerous mental health outcomes. A picture of university students’ mental health is provided and discussed. Geographical comparisons are discussed, as are the implications for practice and future directions.Supplementary InformationThe online version contains supplementary material available at 10.1007/s12144-022-02854-0.

Update of survival of cancer patients in Italy: geographical comparisons and focus on patients with cancers targeted by screening programmes, childhood cancers, and smoking-associated cancers

to update the Italian estimates of survival for patients with a paediatric cancer, tobacco smoke-associated cancers, and cancers targeted by screening; to assess geographical differences. population-based descriptive study. incident cancer cases diagnosed in 2010-2014, with follow-up to 2018, from 17 Italian cancer registries (covering 31% of the national population; 43% of the population residing in the North-Centre of the country and 8% of the population living in the South and Islands). age-standardized 5-year net survival (NS) by cancer site or type, sex, age, and geographical area. NS of patients aged ≥15 years with breast, prostate, colorectal, and lung cancers was higher in the North-Centre than in the South and Islands. The overall survival of people diagnosed with cancer in childhood (0-14 years) was 84.3%, with similar values among the geographical macro-areas and between males and females. Women with breast cancer within the current target age of the screening programmes and those in the younger age groups (45-49 years) show similar survival values; the same is true for women with colorectal cancer. In both cases, survival decreased in the age groups after the age of cessation of screening programmes. Survival of patients with tobacco smoke-associated cancers varies according to cancer site (from 11.1% for patients with pancreatic cancer to 79.7% for those with bladder cancer). For most cancer sites, women have higher survival than men. for adults, a geographical survival gap persists. The results may contribute to the debate on extending the target age for screening programmes and to support initiatives to encourage tobacco smoking cessation even after cancer diagnosis. For patients who receive a cancer diagnosis in childhood, survival similar to highest values internationally.

A Conterminous USA-Scale Map of Relative Tidal Marsh Elevation

Tidal wetlands provide myriad ecosystem services across local to global scales. With their uncertain vulnerability or resilience to rising sea levels, there is a need for mapping flooding drivers and vulnerability proxies for these ecosystems at a national scale. However, tidal wetlands in the conterminous USA are diverse with differing elevation gradients, and tidal amplitudes, making broad geographic comparisons difficult. To address this, a national-scale map of relative tidal elevation (Z*MHW), a physical metric that normalizes elevation to tidal amplitude at mean high water (MHW), was constructed for the first time at 30 × 30-m resolution spanning the conterminous USA. Contrary to two study hypotheses, watershed-level median Z*MHW and its variability generally increased from north to south as a function of tidal amplitude and relative sea-level rise. These trends were also observed in a reanalysis of ground elevation data from the Pacific Coast by Janousek et al. (Estuaries and Coasts 42 (1): 85–98, 2019). Supporting a third hypothesis, propagated uncertainty in Z*MHW increased from north to south as light detection and ranging (LiDAR) errors had an outsized effect under narrowing tidal amplitudes. The drivers of Z*MHW and its variability are difficult to determine because several potential causal variables are correlated with latitude, but future studies could investigate highest astronomical tide and diurnal high tide inequality as drivers of median Z*MHW and Z*MHW variability, respectively. Watersheds of the Gulf Coast often had propagated Z*MHW uncertainty greater than the tidal amplitude itself emphasizing the diminished practicality of applying Z*MHW as a flooding proxy to microtidal wetlands. Future studies could focus on validating and improving these physical map products and using them for synoptic modeling of tidal wetland carbon dynamics and sea-level rise vulnerability analyses.

Theoretical and methodological aspects of resources of land resources in agriculture

This article is devoted to the theoretical and methodological aspects of studying the use of land resources in agriculture, which focuses on theoretical and methodological issues and the scientific and practical significance of studies of the territorial organization of agriculture.At the same time, the location of agricultural sectors, the essence of the concept of land resources, theoretical issues of agrogeography, agricultural zoning, regional production systems and agro-industrial complexes, natural factors affecting the development and territorial organization of agro-economic sectors, traditional geography is widely used in agricultural research (retrospective), such methods, as geographical comparisons, mapping, mathematical-statistical and modeling, assessment of natural and agricultural potential.

Accessibility to Safe Drinking Water and Diarrheal Diseases: A Quasi-Experiment on a Case of Water Well Drilling in the Village of Kassouala, Municipality of Tchaourou, Benin, January 2018-July 2019

Background: In 2017, 900 million people in the world did not have sustainable access to safe drinking water (SDW). In addition, between 2016 and 2020, the global population with safely managed drinking water at home increased from 70 percent to 74 percent. Drinking water insecurity is the daily situation of people in developing countries. The lack of SDW supply is at the root of many diseases, including diarrheal diseases. Kassouala is a village in the municipality of Tchaourou without access to SDW, but having benefited from the drilling of a well in September 2018. The objective of this study was to study the effect of access to safe drinking water on the frequency of diarrheal diseases in Kassouala between January 2018 and July 2019. Methods: We conducted a quasi-experimental study in Kassouala using the natural experiments of the village of Bérétou as a control group for estimating the effect of a causal nature. There were double temporal (January 2018-July 2019) and geographical (Kassouala-Bérétou) comparisons based on data collected from health care registers. A population-based comparability survey of the two villages was conducted among 170 households in each village (experimental village, control village). A two-stage cluster sampling procedure was used to select the survey participants. Data were collected from heads of household by semi-structured questionnaire. We used Pearson or Mantel-Haenszel chi-square tests, as appropriate, and the “difference-in-difference” method to assess the effect. Results: In Kassouala, the proportion of households with access to safe drinking water had increased to 78.88%, whereas it was nil in 2018 before the well drilling, and the frequency of diarrheal diseases decreased significantly from January 2018 before drilling to July 2019 after drilling (57.11% to 44.64%; p < 0.0001). In Bétérou, on the other hand, a control village, used as counterfactual village, a significant increase was noted (31.48% vs. 50%; p < 0.0001). The difference-in-difference was estimated at -30.99% with a degree of statistical significance estimated at p < 0.0001 accounting for the decrease in the frequency of diarrhea in Kassoula relates to SDW accessibility to the population due to the drilling of the well. Conclusion: Access to safe drinking water in Kassouala has a causal effect on the reduction of diarrheal diseases. However, for the supply of drinking water to be integrated into the community development plan of Tchaourou, it is necessary to support the scaling up of this intervention, which would be considered as a pilot, of a community participation program.

Geographical Comparison of Phytoconstituents in Euphorbia hirta: A Pilot Study in Ethiopia and India

Geographical Comparison of Phytoconstituents in Euphorbia hirta: A Pilot Study in Ethiopia and India

How Did Coronavirus-19 Impact the Expenses for Medical Students Applying to an Orthopaedic Surgery Residency in 2020 to 2021?

Orthopaedic surgery is one of the most competitive specialties for residency applicants. For the 2021 residency match, the coronavirus-19 pandemic introduced complexity for programs and applicants because away rotations were limited and in-person interviews were cancelled. This may have changed the landscape in terms of expenses for candidates in important ways, but this topic has been insufficiently studied. Given that in 2021, students did not attend away rotations and all interviews were held virtually, we asked (1) What were the financial savings associated with this change? (2) Was medical school geographic region associated with differences in expenses when applying to residency? A retrospective, cross-sectional analysis of the 2020 and 2021 Texas Seeking Transparency in Application to Residency Dashboard database was performed. The data were derived from an online survey of a nationwide pool of applicants from 87% (123 of 141) of US allopathic medical schools upon conclusion of the match. The response percentage was 29% (521 of 1794). We believe this nationwide dataset represents the largest and most current data for this applicant group. Responses from applicants applying to orthopaedic surgery residency in the year before the COVID-19 pandemic application changes (2020) and during COVID-19 (2021) were queried and compared. After the orthopaedic surgery match, the database was evaluated for individual (application costs, away rotation expenses, and interview expenses) and total expenses for medical school seniors applying to orthopaedic surgery residency. Applicant characteristics were compared between application cycles. The 2020 to 2021 Texas Seeking Transparency in Application to Residency Dashboard database had 521 responses (n = 263 in 2020 and n = 258 in 2021) from applicants applying to orthopaedic surgery residency. Demographic and applicant characteristics were comparable between application cycles. Median expenses are reported with percentile distributions and geographic comparisons. A Mann-Whitney U test or Kruskal-Wallis H test was used to determine whether there were statistically significant differences in expenses between years and between medical school regions at a p value threshold of < 0.05. For all applicants, the median total expenses (USD 7250 versus USD 2250), application costs (USD 2250 versus USD 1750), away rotation expenses (USD 2750 versus USD 250), and interview expenses (USD 2250 versus USD 75) declined in 2021 compared with 2020 (all p < 0.001). The median total savings in expenses for all applicants in 2021 compared with 2020 was USD 5000. In 2021, median total expenses were lower in all geographic regions with the greatest savings from applicants in the West (USD 6000); in addition, the difference in median total expenses between the geographic region with the highest total expenses and the lowest total expenses was lower in the pandemic year than it was in the year prior (USD 1000 versus USD 1500; p < 0.001). In 2021, there were differences in total expenses between the Northeast (USD 1750), West (USD 1750), and Central (USD 2750) regions (p < 0.001). From 2020 to 2021, only application fees from Northeast applicants differed (USD 2250 versus USD 1250; p < 0.001). In 2020, interview expenses were not different between all regions (USD 2250 Northeast and West versus USD 2750 Central and South; p = 0.19); similarly in 2021, interview expenses were similar between all regions (USD 75 versus USD 75; p = 0.82). Finally, in 2020, Northeast (USD 3250) and Western (USD 3250) applicants spent more for away rotations than Southern (USD 2750) and Central (USD 2250) applicants (p = 0.01). In 2021, applicants from schools in the South (USD 250) and Central (USD 250) regions spent more than their counterparts (USD 0; p = 0.028). In the COVID-19 application cycle, the median expenditures of orthopaedic residency candidates were USD 5000 lower than they were in the previous year; the difference can be attributed to the use of virtual interviews and the lack of away rotations. There are geographic implications, with applicants from Western United States medical schools potentially saving the most. Despite the financial savings during the 2021 match, further study related to the long-term success of the current application process (both for applicants and programs) is needed. The recommendation in May 2020 by the AOA Council of Orthopaedic Residency Directors (CORD) to limit the number of applications submitted by candidates with USMLE Step 1 scores greater than 235 did not result in any considerable decline in applications submitted or expenses. A better understanding of how differences in these expenses may influence our specialty's ability to attract socioeconomically diverse candidates would be important, and we need to explore perceived and actual financial obstacles to obtaining this diversity in the application process. Finally, avenues should be explored by program directors and chairpersons to reduce the expenses of the traditional application process while maintaining recruitment of top candidates. Level IV, economic analysis.

An affordable method for monitoring plastic fibre ingestion in Nephrops norvegicus (Linnaeus, 1758) and implementation on wide temporal and geographical scale comparisons

Although the ingestion of plastics has been reported in a wide variety of organisms, there remains a lack of knowledge regarding the extent of spatial and temporal gradients and no consensus concerning the definition of monitor species for benthic marine environments. The present study aims at demonstrating the correlation between the presence of tangled balls of fibres and high levels of total plastic fibre ingestion in Nephrops norvegicus to assess the potential use of the prevalence of tangled balls as indicators of fibre pollution. To do so, the presence of plastics in stomach contents from several European populations of N. norvegicus is characterized in detail, including size distribution and polymer composition, and then its correlation with the prevalence of balls tested. Our results demonstrate that the prevalence of balls (>20%) is significantly correlated to higher levels of plastic ingestion, regardless of polymer composition and size distribution of ingested fibres. Plastic fibre ingestion levels across wide temporal and geographical scales are assessed using only the prevalence of balls, highlighting areas of increased fibre ingestion (e.g., the Gulf of Cadiz, N Barcelona) and areas of potentially lower fibre pollution (e.g., the Ebro Delta, the NW Iberian margin). Moreover, the relationship between the prevalence of balls and diet composition is analysed to discard a potential relationship with geographical differences in diet habits. Finally, we discuss the benefits and drawbacks of the use of the prevalence of tangled balls of fibres as an affordable, cost-effective and easy to implement indicator of fibre pollution for monitoring purposes in this species.

Fine-scale soil mapping with Earth Observation data: a multiple geographic level comparison

Multitemporal collections of satellite images and their products have recently been explored in digital soil mapping. This study aimed to produce a bare soil image (BSI) for the São Paulo State (Brazil) to perform a pedometric analysis for different geographical levels. First, we assessed the potential of the BSI for predicting the surface (0.00-0.20 m) and subsurface (0.80-1.00 m) clay, iron oxides (Fe 2 O 3 ), aluminum (m%) and bases saturation (V%) contents at the state level, which [...]

How Does Geographic Region Affect the Total and Individual Costs for Medical Students Applying to the Competitive Surgical Residencies?

Studies have individually assessed the expenses for medical students desiring a surgical residency in neurosurgery, orthopaedic surgery, otolaryngology, plastic surgery, and urology. A detailed comparison of expenses by geographic region have not been reported. The aim was to geographically compare the expenses of United States medical students applying to the 5 most competitive surgical residencies. Anonymous nationwide survey of plastic surgery, orthopaedic surgery, otolaryngology, urology, and neurological surgery residency applicants. A cross sectional, retrospective analysis of the 2019-2020 Texas STAR Dashboard database, an online tool generated from a nationwide survey of students. Individual (application, away rotation, interview) and total costs for medical school seniors were recorded in addition to applicant characteristics. Mean and median costs were reported for each specialty with percentile distributions and geographic comparisons. A Kruskal-Wallis H test was performed to compare differences in costs between surgical specialties and medical school region. In total, 1136 applicants to surgical residency were included. The number of applicants to orthopaedic surgery (OS) (n = 459), neurological surgery (NS) (n = 121), urology (UR) (n = 191), plastic surgery (PS) (n = 117), and otolaryngology (OTO) (n = 248) were reported. Mean total costs were (OS; $8,205), (NS; $11,882), (UR; $8,207), (PS; $10,845), and (OTO; $7,516) (p ≤ 0.029). Application fees were only significantly different in the northeast and southern applicants between the different specialties, notably orthopaedic surgery applicants spent the most. In all geographic regions excluding the west, neurosurgery and plastic surgery applicants spent significantly more than other specialties for interview costs and away rotation costs. In all geographic regions neurosurgery and plastic surgery applicants spent significantly more than other specialties in total costs. Orthopaedic surgery applicants spend the most on application fees in select geographic regions. Neurosurgery and plastic surgery applicants spend more on interviews, away rotations, and total costs in nearly all geographic regions.

Clinician variability in the diagnosis and treatment of aspergillus fumigatus-related conditions in cystic fibrosis: An international survey

BackgroundThe diagnosis and treatment of Aspergillus fumigatus (Af)-related conditions remain a challenge in cystic fibrosis (CF) due to overlapping features of disease and absence of clinical guidelines for Af-related conditions outside of ABPA. ObjectiveTo investigate the differences of clinical practice in the diagnosis and management of Af-related conditions in CF. MethodsWe conducted an international survey to CF clinicians to ascertain the screening, diagnostic, and treatment practices for Af-related conditions in CF. Respondents were grouped into geographical regions and regional comparisons using chi-square tests of independence or Fisher's tests were performed. ResultsA total of 319 survey responses from 35 countries were analyzed. We observed differences in use and frequency of fungus culture, Aspergillus-specific IgE and IgG, skin prick testing, and pulmonary function testing as screening for Af-related conditions between the geographical regions. ABPA and Aspergillus bronchitis diagnostic criteria selection differed by region; significantly greater proportion of United States (US) and Canadian clinicians were unable to define Aspergillus bronchitis compared to Europe and other regions. Decision to treat ABPA was uniform across regions, but the consideration of Aspergillus bronchitis as a clinical disease warranting therapy differed between regions. The use of glucocorticoid and itraconazole was the first-line treatment of ABPA among clinicians; however, prednisone monotherapy was more common in US and Canada. ConclusionsSignificant variability in the diagnosis and management of Aspergillus-related conditions in CF was observed. Future studies are necessary to better harmonize the approach to Af-related disease in CF.

Some socio-economic aspects of gastronomic tourism study

As far as Uzbekistan is implementing a number of reforms to develop the tourism sector, it is very important to identify natural, socio-economic factors and objects that are the basis for the development of tourism in the Khorezm region. The article aims to cover the theoretical issues of gastronomic tourism, its current state, its role in tourism of different countries and regions, as well as the features of the Uzbek national cuisine, cooking. The study used statistical, questionnaires, geographical comparisons, regional analysis, extrapolation, ecological and systematic approaches, and expert evaluation. The article also describes gastronomic travel and its types, economic and social aspects. The article does not take into account the specific features of the types of tourism, such as medical tourism, business tourism, etc., and focuses on gastronomic tourism. Particular attention is paid to the opportunities for the development of gastronomic tourism and the work of foreign scientists who have contributed to the development of the socio-economic basis of gastronomic tourism management. It was concluded that Khorezm region is one of the most ancient and beautiful regions of Uzbekistan, which has long been distinguished by gastronomic tourism.

How can we categorise \u2018nationality\u2019 and \u2018second generation\u2019 in surveys without (re)producing stigmatisation?

Whilst reflexive migration studies have criticised the use of categories such as ‘nationality’ and ‘second generation’ in quantitative research, several gaps on how to develop such reflexivity remain. In qualitative data, the co-construction of knowledge seems feasible during fieldwork, whereas the deductive process of quantitative research limits such interactions and is more at risk of reproducing a ‘state thought’. Through a longitudinal database, the LIVES-FORS cohort survey of the National Center of Competence in Research LIVES – Overcoming Vulnerability: Life Course Perspectives and FORS – the Swiss Centre of Expertise in Social Sciences (herafter LCS), we engage in this discussion and provide some answers. The LCS is an annual longitudinal survey that, in 2013, started following a cohort of young adults born between 1988 and 1997 who grew up in Switzerland. The underlying hypothesis of the LCS is that migrants’ descendants have access to different resources (and often a lack thereof) to Swiss natives. In this paper, we discuss both the theoretical and empirical challenges to using the categories ‘nationality’ and ‘second generation’. We show the fluidity and subjectivity of these categories. By changing the definition of the category ‘second generation’, we increased the proportion of ‘second-generation’ participants from 43 to almost 62% of the sample. Looking across the five waves of the survey, we notice a 2% unexplained variation in the first nationality mentioned by the participants and 31% missing values regarding the nationality at birth – which are both indicators that nationality is a subjective category as well as a legal one. We illustrate that the static and neutral conceptions of these categories reproduce a false and stigmatised image of migrant descendants. To avoid these pitfalls we suggest developing multilevel geographical comparisons to consider the effects of time (age and historical), to use a wider range of information in order to be more precise, to examine different nationalities instead of focusing on the traditional nationalities of labour immigrants in a given country and to explore the reasons for the lack of answers to certain questions. Thus the questionnaires should include both more flexibility in the possibilities for answers and details and more-open questions regarding sensitive issues about the definition of the self. They should be developed through a participative and bottom-up process fostering mixed methods.

Relevant SARS-CoV-2 Genome Variation through Six Months of Worldwide Monitoring.

Real-time genome monitoring of the SARS-CoV-2 pandemic outbreak is of utmost importance for designing diagnostic tools, guiding antiviral treatment and vaccination strategies. In this study, we present an accurate method for temporal and geographical comparison of mutational events based on GISAID database genome sequencing. Among 42523 SARS-CoV-2 genomes analyzed, we found 23202 variants compared to the reference genome. The Ti/Tv (transition/transversion) ratio was used to filter out possible false-positive errors. Transition mutations generally occurred more frequently than transversions. Our clustering analysis revealed remarkable hotspot mutation patterns for SARS-CoV-2. Mutations were clustered based on how their frequencies changed over time according to each geographical location. We observed some clusters showing a clear variation in mutation frequency and continuously evolving in the world. However, many mutations appeared in specific periods without a clear pattern over time. Various important nonsynonymous mutations were observed, mainly in Oceania and Asia. More than half of these mutations were observed only once. Four hotspot mutations were found in all geographical locations at least once: T265I (NSP2), P314L (NSP12), D614G (S), and Q57H (ORF3a). The current analysis of SARS-CoV-2 genomes provides valuable information on the geographical and temporal mutational evolution of SARS-CoV-2.

Consistent pattern of higher lability of leaves from high latitudes for both native Phragmites australis and exotic Spartina alterniflora

Abstract Global variation in litter decomposition rates is driven by climate, decomposer taxa and litter quality. Most large‐scale studies of litter quality have made comparisons across species, rather than within a species sourced from different latitudes. Here, we aim to explore latitudinal variation in leaf litter decomposition rate and litter quality within a species. We investigated whether the typical interspecific pattern of increased litter lability at higher latitudes also holds within plant species, by comparing leaf litter decomposition rates and litter traits from stands of native Phragmites australis and exotic Spartina alterniflora in Chinese coastal wetlands spanning 20° of latitude using parallel greenhouse and field transplant experiments. We found that leaf litter from high‐latitude plants decomposed 46.6 ± 5.1% faster than that from low‐latitude conspecifics, with similar patterns in both plant species in both decomposition experiments. Higher lability of leaves from high latitudes was associated with lower levels of plant defensive compounds (phenolics and tannins) and higher levels of nutrients (Ca, Mg and Na). Litter from the exotic S. alterniflora decomposed faster than litter from the native P. australis, being consistent with lower defences and higher nutrient concentrations in S. alterniflora litter. Our results show that individual species follow the same pattern of increasing litter lability at higher latitudes previously reported in cross‐species geographical comparisons. Moreover, this pattern can develop rapidly (&lt;4 decades) in an introduced species, raising the question of whether it is caused by phenotypic plasticity or adaptation. A free Plain Language Summary can be found within the Supporting Information of this article.

Characterising potential participants in kelp monitoring in the recreational diving community: A comparative study of South Africa and New Zealand

Coastal and marine recreational groups have been widely involved in activities of environmental monitoring, also referred to as participatory or citizen science. There are, however, several factors influencing interest and ultimately participation by these groups, ranging from demographic to recreation specialisation, attitudinal and behavioural variables. These need to be considered when designing citizen science projects as well as recruitment and engagement approaches. Kelp forests are cold-water coastal ecosystems holding enormous intrinsic and extrinsic value and are under pressure from local and global stressors. Scientists worldwide have called for increased long-term kelp monitoring efforts to fill data gaps and exploit the ecological indicator properties of kelp to monitor environmental change. They have also called for research focusing on people and raising public awareness to garner support for kelp conservation. Citizen science could be one of many strategies to address these calls, with recreational divers being central contributors to local and international kelp monitoring projects. This study aimed to assess recreational divers’ interest in kelp monitoring, characterising those wishing to contribute based on variables known to influence interest and participation in citizen science, and comparing different geographic regions. A phenomenology approach in qualitative research was used to collect data from 100 kelp divers in South Africa and New Zealand. Thematic analysis, the quantification of qualitative data and statistical analysis were used to describe the sample. All participants were interested in kelp monitoring, providing reasons which were significantly related to specific variables. Previous participation in kelp projects by a proportion of the sample enabled the profiling of those who may ultimately commit to kelp monitoring. Geographic comparisons revealed how kelp divers largely have experiences, knowledge and attitudes regarding kelp and its monitoring in common, while also showing important context-specific differences. The results of this study were used to generate five scenarios of recreational divers’ involvement in kelp citizen science, including field-based monitoring as part of local and international projects, public education, miscellaneous conservation activities, and “opportunistic” kelp monitoring. The data ultimately aim to provide useful information for the planning and development of both local and international kelp monitoring initiatives based on citizen science.

Costs of U.S. Allopathic Medical Students Applying to Neurosurgery Residency: Geographic Considerations and Implications for the 2020–2021 Application Cycle

Although studies have evaluated the economic burden to medical students desiring a neurosurgery residency broadly, a detailed breakdown of costs has not been reported. Given that the Association of American Medical Colleges and Society of Neurological Surgeons have recommended neurosurgery residency programs for the 2021 residency application cycle cancel away rotations and in-person interviews, our objective was to evaluate cost savings to medical students applying during this time and the implications. Using the 2019-2020 Texas STAR Dashboard database, we queried responses from neurosurgery residency applicants. We recorded application costs, away rotation costs, interview costs, and total costs for medical school seniors applying to neurosurgery residency. Demographic information for applicants was also recorded. Mean and median costs were reported with percentile distributions and geographic comparisons. A Kruskal-Wallis H test was used to determine differences in mean costs by medical school region. Our cohort included 121 U.S. allopathic applicants to neurosurgery residency. Mean application costs were $1711, away rotation costs were $3840, interview costs were $6400, and total costs were $11,882. No significant difference was observed for mean total costs for applicants from schools in the central ($10,525/applicant), northeast ($11,311/applicant), south ($12,660/applicant) and west ($12,404/applicant) regions (P= 0.181). There was no significant difference in the mean application fees, away rotation costs, or interview costs among regions. In the COVID-19 era, neurosurgery residency applicants could save >$10,000 through the use of virtual interviews and lack of away rotations. There are potential geographic trends; however, further evaluation should be performed.