bluuebunny/crossref_metadata_2025 huggingface dataset:
A study of easy-to-read adaptations in climate communication: a corpus analysis
Authors: Pujadas-Farreras Marina , McDonagh Sarah Anne
Published: April 2024

Access to clear and scientifically verified information is crucial to understand the scale of the challenge of the climate crisis, allowing policymakers, governments, and individuals to better respond to it. However, for some, including people with cognitive disabilities as well as individuals who have difficulty reading, climate science can be difficult to understand with complex sentence structures and jargon obscuring important environmental information. The aim of this paper is to assess the main linguistic barriers to information about the climate crisis for people with cognitive disabilities and reading difficulties. Using the examples of the Greater London Authority’s Environment Strategy Executive Report and the Northern Ireland Executive Discussion Document on a Northern Ireland Climate Change Bill, and their adaptations into Easy-to-Read as our corpus, we will examine the different morphosyntactic and lexical elements of each text to determine their overall level of complexity, such as sentence structure or vocabulary. Our results show that both Easy-to-Read versions were generally easier to understand than the standard versions. However, the Northern Ireland Easy-to-Read text was more syntactically complex with longer and more complicated sentence structures, owing to its function as a consultation document. We conclude that the main access barriers in the Northern Ireland Easy-to-Read text are related to its morphosyntactic elements, a conclusion supported by our manual analysis of the standard text. More generally, the lexical aspects of both Easy-to-Read texts showed positive results, which suggests that they may be more easily simplified compared to morphosyntactic aspects. However, more systemic and contrastive research is required to confirm our findings, in addition to user testing with people with cognitive disabilities and individuals who have difficulty reading.
Establishment success of the reinforced population of Gran Canaria Blue Chaffinch Fringilla polatzeki
Authors: Delgado Alejandro , Suárez Víctor , González Daniel , Trujillo Domingo , Carrascal Luis M.
Published: April 2024

The Gran Canaria Blue Chaffinch is the rarest forest passerine in the western Palaearctic with a population reduced to a single locality, Inagua, in the west of the island. After a forest fire, some birds were established in another location and a reinforcement programme was launched with the aim of consolidating this new population. Between 2010 and 2019, 194 Blue Chaffinches were released in the pine forest of La Cumbre, in the centre of the island and at a higher altitude than the previous one. Birds of two origins were used for this action: captive-bred birds were released using “soft” release methods, and wild-caught birds from the Inagua source population were released using “hard” release methods. Survival of radio-tagged birds (20–42 days of battery life) was high and similar between the two groups. Wild-caught birds occupied 12–15 times more surface area than captive-bred birds that remained close to supplementary feeding sites. All translocated birds displayed breeding behaviour in the following breeding season, although the rate of contribution to the new population was significantly lower for wild-caught birds (21% compared to 54% for captive-bred birds). This disparity can be partly attributed to nearly one-fifth of the wild-caught birds returning to Inagua. We conclude that the establishment phase of the Blue Chaffinch reinforced program in Gran Canaria has been successful. To retain wild-caught birds and deter their return to the source population, we recommend employing methods akin to the soft-release techniques utilized for captive-bred birds. Ongoing monitoring of the enhanced population, collecting data on survival and breeding success, will enable the evaluation of the long-term success of the translocation program.
Genetic variation of English yew (Taxus baccata L.) in the Bavarian Forest National Park, Germany
Authors: Moosavi Sayed Jalal , Budde Katharina Birgit , Heurich Marco , Mueller Markus , Gailing Oliver
Published: April 2024

Taxus baccata L. is a highly valuable species with wide distribution but scattered and locally rare occurrence. Human intervention, including forest management practices and fragmentation, can significantly impact the species’ genetic diversity, structure, and dynamics. In this study, we investigated these factors within T. baccata populations in the Bavarian Forest National Park (NP) in Germany and their implications for conservation. We used 13 EST-SSRs to assess the genetic diversity and structure of the population. Our analysis revealed a scarcity of small-diameter trees, indicating limited natural regeneration over time. However, conservation efforts, like selectively removing competitor species and using protective fencing, have improved growth conditions and promoted seedling emergence. The NP’s natural zone has no active management, which is confined to the development and management zones. Genetic diversity assessments revealed high genetic diversity (He: 0.612 and 0.614 for seedlings and adults, respectively) compared to other studies in Taxus baccata, dispelling concerns of significant inbreeding and showcasing a stable genetic structure. However, significant spatial clustering of related individuals (family structures) in both cohorts and low effective population size in the progeny hints at restricted gene flow, necessitating conservation efforts prioritizing safeguarding and promoting natural regeneration in development and management zones. Limited natural regeneration and the recent decrease in effective population size in the NP populations indicate habitat fragmentation and human interventions. Effective population size estimates emphasize the need for diverse conservation strategies. Conservation efforts should prioritize protecting natural regeneration and enhancing gene flow by actively promoting European yew, e.g., by shelterwood cutting, to ensure the long-term viability of T. baccata in the region outside the NP.
Cumulative mortalities in white leg shrimp, Litopenaeus vannamei Boone 1931, cultured in biofloc system in Egypt reflected new record of Fusarium verticillioides infection
Authors: Hussein Mortada M. A. , Hassan Walid H. , El-Ghany Nadia N.A. Abd , Ghanem Nourhan H.
Published: April 2024

The Egyptian aquaculture sector is still struggling to establish L. vannamei culture. In an effort to stimulate shrimp production with minimal environmental impact and less water loss, biofloc technology (BFT) has been employed. Chronic mortality was recently observed in L. vannamei which was raised in the BFT system. Examining samples of moribund shrimp revealed sporadic melanization on the musculature and gills, suggesting the potential existence of black gill disease. The present work was carried out to isolate and identify potentially implicated fungus species based on mycological properties of interest. To isolate and serve as initial identification tools, wet mount preparations and colonial features, along with slide culture techniques, were used. PCR assays, gene sequencing, and phylogenetic analyses were used in the molecular identification process to clarify the confirmation of the fungal isolates that were acquired. The pathogenicity tests were designed to fulfil Koch’s postulates in addition to clarifying the infectivity of isolated fungus. Moreover, histopathological examination was employed to notice tissues’ alterations associated with experimentally infected shrimp. The results revealed the isolation of three fungal isolates, namely, BNS 1117, BNS 2117, and BNS 3117, that were confirmatively identified as Fusarium verticillioides, and their selected sequences were submitted to Genbank. Moreover, experimental infection using F. verticillioides selected isolate (BNS 31,117) at both high (5 × 105 CFU/mL, group A) and low (3 × 105 CFU/mL, group B) doses of its conidial suspensions experienced cumulative mortality of 72.2% and 21.1%, respectively. Besides, the selected isolate was re-isolated from the experimentally infected shrimp in a pure form, which satisfied Koch’s postulates. Histopathological alterations demonstrated several degrees of either degenerative, oedema, or proliferative changes in the hepatopancreas, musculatures, and gills, respectively. This study sets a new record for F. verticillioides to be included in Fusarium species linked to shrimp mortality.
The perpetual twilight of records: consentful recordkeeping as moral defence
Authors: Rolan Gregory , Lewis Antonina
Published: April 2024

In this article, we examine the significance of establishing participatory and consentful recordkeeping practice in the face of ubiquitous use of records beyond their original intent. Among such secondary uses is the decontextualisation of data as part of the 'industrialisation' of access and use of ‘historical’ records within current transactional contexts, together with a wide range of data sharing practices arising from contemporary data science paradigms. To situate the call to action for consentful recordkeeping practice, we begin the article by exploring how human ability to navigate through the perpetual twilight of records becomes increasingly murky when a wholesale approach to data collection and governance is applied by machine learning practitioners. We then re-frame some classical archival principles to align them with participatory approaches; specifically, by expanding the scope of Jenkinsonian ‘moral defence’ as an imperative for proactive engagement with the Archival Multiverse. We then describe a case study of consentful recordkeeping in practice, using the example of the AiLECS Lab’s newly developed collection acquisition and management system. This principles-based framework informs our practices for collecting and curating datasets for machine learning research and development and aims to privilege the ongoing consent of those represented in records to their use. In the context of this work, our core premise is that technologies designed to prevent exploitation of children should aim to avoid underlying data practices that are themselves exploitative (of children or adults).
Subsidy-stress responses of ecosystem functions along experimental freshwater salinity gradients
Authors: DeVilbiss Stephen E. , Badgley Brian D. , Hotchkiss Erin R. , Steele Meredith K.
Published: April 2024

Human activity is increasing salt concentrations in freshwaters worldwide, but effects of freshwater salinity gradients on biogeochemical cycling are less understood than in saline, brackish, or marine environments. Using controlled microcosm experiments, we characterized (1) short-term (one to five days) biogeochemical responses and (2) water column metabolism along a freshwater salinity gradient of multiple salt types. After one day, microcosms were oxic (4.48–7.40 mg O2 L−1) but became hypoxic (1.20–3.31 mg L−1) by day five. After one day in oxic conditions, microbial respiration in magnesium-, sodium-, and sea salt-based salinity treatments showed a subsidy-stress response, with respiration increasing by over 100% as salinity increased from 30 to 350–800 µS cm−1. Conversely, respiration consistently increased along a calcium-based salinity gradient, peaking at 1500 µS cm−1. By day five, an inverse subsidy-stress response was observed with elevated respiration at upper or lower ends of the gradient except for the magnesium treatment, which had the lowest respiration at the highest salinity. Calcium- and magnesium-based salinity treatments also caused considerable changes in phosphorus concentrations and C:P and N:P. In a separate experiment, microbial respiration and water column primary production also displayed subsidy-stress responses, but imbalances in effect sizes caused consistently declining net community production with increasing salinity. Collectively, our results establish that short-term exposure to different salt ion concentrations can enhance freshwater biogeochemical cycling at relatively low concentrations and alter resource stoichiometry. Furthermore, the nature of effects of freshwater salinization may also change with oxygen availability.
Foresight plus: serverless spatio-temporal traffic forecasting
Authors: Oakley Joe , Conlan Chris , Demirci Gunduz Vehbi , Sfyridis Alexandros , Ferhatosmanoglu Hakan
Published: April 2024

Building a real-time spatio-temporal forecasting system is a challenging problem with many practical applications such as traffic and road network management. Most forecasting research focuses on achieving (often marginal) improvements in evaluation metrics such as MAE/MAPE on static benchmark datasets, with less attention paid to building practical pipelines which achieve timely and accurate forecasts when the network is under heavy load. Transport authorities also need to leverage dynamic data sources such as roadworks and vehicle-level flow data, while also supporting ad-hoc inference workloads at low cost. Our cloud-based forecasting solution Foresight, developed in collaboration with Transport for the West Midlands (TfWM), is able to ingest, aggregate and process streamed traffic data, enhanced with dynamic vehicle-level flow and urban event information, to produce regularly scheduled forecasts with high accuracy. In this work, we extend Foresight with several novel enhancements, into a new system which we term Foresight Plus. New features include an efficient method for extending the forecasting scale, enabling predictions further into the future. We also augment the inference architecture with a new, fully serverless design which offers a more cost-effective solution and which seamlessly handles sporadic inference workloads over multiple forecasting scales. We observe that Graph Neural Network (GNN) forecasting models are robust to extensions of the forecasting scale, achieving consistent performance up to 48 hours ahead. This is in contrast to the 1 hour forecasting periods popularly considered in this context. Further, our serverless inference solution is shown to be more cost-effective than provisioned alternatives in corresponding use-cases. We identify the optimal memory configuration of serverless resources to achieve an attractive cost-to-performance ratio.
A Compact Aerial Manipulator: Design and Control for Dexterous Operations
Authors: Liu Qianyuan , Liu Yuhang , Chen Zeshuai , Guo Kexin , Yu Xiang , Zhang Youmin , Guo Lei
Published: April 2024

The lack of aerial physical interaction capability is one of the choke points limiting the extension of aerial robot applications, such as rescue missions and aerial maintenance. We present a new aerial robotic manipulator (AEROM) for aerial dexterous operations in this work. It contains a robotic manipulator with 6-degree-of-freedom and a compact flight platform. Firstly, we propose a quantitative capability index to evaluate and guide the mechanical design of the AEROM. Based on the proposed quantitative index, we construct a lightweight bird-inspired manipulator to imitate a raptor hindlimb. An additional telescopic joint and an end-effector consisting of three soft fingers allow the AEROM to execute aerial interaction tasks. In addition, the wrist joints enable independent control of the end-effector attitude regardless of the flight platform. After explicitly analyzing the multi-source disturbances during the aerial operation tasks, we develop a refined anti-disturbance controller to compensate for the disturbances with different characteristics. The proposed controller further improves the position accuracy of end-effector to enable dexterous operations during aerial interaction tasks. Finally, the physical experiments verify the effectiveness of the proposed AEROM system.
Time, ties, transactions: temporality and relational work in economic exchange
Authors: Hayes Adam S.
Published: April 2024

This paper explores the intersection of time and relational economic sociology. Building on Viviana Zelizer’s relational framework, I argue that analyzing the temporal dimensions of exchange provides insight into how social ties gain meaning through economic practices. The paper shows time’s dual role as both an organizing structure bounding action, and a dynamic element that actors leverage to shape transactional contexts. As structure, time offers culturally-available templates like schedules and rhythms that facilitate coordination and signify predictable social meanings befitting particular relational categories. Yet time also constitutes relational work itself; strategic timing, duration, pacing, and sequencing of interactions signal context, manage expectations, and sustain bonds amidst entanglements. Synchronization through temporal agency prevents mismatches between transactions and social contexts that could strain ties. This agency in time ranges from passive adherence to dominant structures to active assertions of power resistance, enabling both domination and defiance across economic contexts. Analyzing shared temporal infrastructure within circuits of commerce further illuminates how actors distinguish those spheres of exchange at various scale from the impersonal market. Ultimately, incorporating temporality strengthens relational economic sociology by identifying a key mechanism through which practices of exchange become relationally meaningful.
Morten Levin’s “Academic Integrity in Action Research” Revisited: Bildung as Interiority
Authors: Coghlan David
Published: April 2024

This article revisits Morten Levin’s article, “Academic integrity in action research” published in the journal, Action Research (Levin 2012). It develops the main theme of rigour and relevance from the perspective of interiority. Interiority is a philosophical theory and method that enables action researchers attend to the data of their consciousness, that is how they experience, question, understand, test their understanding, make judgments, make decisions and act, which Levin understands as bildung. I offer interiority as the perspective on how rigour and relevance may be understood and integrated in a reframing of the bildung of action researchers as Morten discussed it in 2012.
The overlooked margins: how cities impact diversity of plants and terrestrial invertebrates along urban streams
Authors: Campos Carolina Oliveira , Almeida Salomé F. P. , Serra Sónia R. Q. , Calapez Ana Raquel , Silveira Paulo , Feio Maria João
Published: April 2024

The effect of different urbanization levels on terrestrial biodiversity associated with riparian zones remains poorly studied, despite the important ecosystem services it provides in cities. Studies focused on aquatic ecosystems in urban streams reported decreases in ecological quality and species richness, and lack of sensitive taxa. Thus, we investigated the impact of urbanization on riparian zone flora and terrestrial invertebrates using as case studies nine urban streams spanning an urbanization gradient in the Portuguese city of Coimbra. An unexpectedly high number of taxa were identified (163 plants, 80 terrestrial invertebrates), 80% new registrations for the region and one endemic-rare plant. Yet, diversity varied across streams, β-diversity reaching 39% Bray-Curtis similarity and averaging 25%, due to many underrepresented terrestrial taxa (N = 62 observed only in one site). Variation across the urbanization gradient reached 59% in plants and 82% in terrestrial invertebrates. High numbers of non-native taxa (13%; N = 32), mostly plants, suggested urbanization factors, e.g. human interference and discharge variation, may have favored invasions. Indeed, constructed natural spaces along streams, like parks, supported less biodiversity. Moreover, plant richness, especially of riparian plants, was correlated negatively with percentages of surrounding impervious areas and positively with water quality. This shows urbanization has negative effects on riparian vegetation, and water quality impacts both aquatic and terrestrial communities. Our results stress urban streams as novel ecosystems constituted by high numbers of non-native taxa, and the significance of riparian zones for biodiversity preservation. Less intense intervention on riparian vegetation is recommended to increase biodiversity.
Degradation of limonene and trans-cinnamaldehyde in soil, and detection of their metabolites by UHPLC and GC-HRMS
Authors: Reyes-Ávila Alba , Garrido Frenich Antonia , Romero-González Roberto
Published: April 2024

Two commercial biopesticides were studied to determine their persistence in two soil types, such as sandy clay loam and clay loam soils. For this purpose, an orange oil–based biopesticide was used, being limonene its main ingredient. The other biopesticide was based on cinnamon extract and trans-cinnamaldehyde as its main component. Degradation of these compounds was monitored, and transformation products or metabolites were detected. Limonene and its metabolites were analyzed by gas chromatography (GC) and trans-cinnamaldehyde by ultra-high-performance liquid chromatography (UHPLC). Both techniques were coupled to a high-resolution mass (HRMS) analyzer, such as quadrupole (Q)-Orbitrap. Limonene and trans-cinnamaldehyde were rapidly degraded as result of first-order kinetics. Possible metabolites such as thymol, cymene, isoterpinolene and cymenene for limonene, and hydroxycinnamic acid for trans-cinnamaldehyde were tentatively identified. Moreover, four other metabolites of trans-cinnamaldehyde, some of them not previously described, were also detected.
How and when CEO servant leaders fuel firm innovation: the role of social capital and knowledge absorptive capacity
Authors: Gutiérrez-Broncano Santiago , Linuesa-Langreo Jorge , Ruiz-Palomino Pablo , Silva Graça Miranda
Published: April 2024

Firm innovation is a characteristic of firms with a robust entrepreneurial orientation that wish to have a strong competitive position in their sector. Drawing on the theories of servant leadership and upper echelons, this study aims to highlight the mechanisms through which CEO servant leadership enhances firm innovation. This paper examines (1) knowledge absorptive capacity as a mediator in the CEO servant leadership–firm innovation relationship, and (2) the moderating role of social capital (internal and external) in this relationship. Original data from 176 large and medium-sized hotels in the Canary and Balearic Islands (Spain) were used to test the hypotheses, and a partial least squares (PLS) analysis using Smart PLS 4 revealed that CEO servant leadership was positive for firm innovation, which was, in turn, mediated by firm knowledge absorptive capacity. Furthermore, the relationship between CEO servant leadership and firm knowledge absorptive capacity was found to grow stronger as internal social capital increased, while external social capital strengthened the positive link between firm knowledge absorptive capacity and firm innovation. New light is therefore shed on how and when CEO servant leadership is most effective in fostering firm innovation. Additionally, our firm-level findings contribute to the servant leadership literature, which is dominated by individual and group-level research, and expand the mounting evidence for the positive impact of CEO servant leadership on firm-level outcomes.
Intensifying electrified flow-through water treatment technologies via local environment modification
Authors: Huo Zheng-Yang , Wang Xiaoxiong , Huang Xia , Elimelech Menachem
Published: April 2024

Removing high-risk and persistent contaminants from water is challenging, because they typically exist at low concentrations in complex water matrices. Electrified flow-through technologies are viable to overcome the limitations induced by mass transport for efficient contaminant removal. Modifying the local environment of the flow-through electrodes offers opportunities to further improve the reaction kinetics and selectivity for achieving near-complete removal of these contaminants from water. Here, we present state-of-the-art local environment modification approaches that can be incorporated into electrified flow-through technologies to intensify water treatment. We first show methods of nanospace incorporation, local geometry adjustment, and microporous structure optimization that can induce spatial confinement, enhanced local electric field, and microperiodic vortex, respectively, for local environment modification. We then discuss why local environment modification can complement the flow-through electrodes for improving the reaction rate and selectivity. Finally, we outline appropriate scenarios of intensifying electrified flow-through technologies through local environment modification for fit-for-purpose water treatment applications.
Distinguishing the role of adverse life events in suicidality and non-suicidal self-injury in Spanish adolescents and young adults
Authors: Marrero Rosario Josefa , Bello Esperanza Macarena , Morales-Marrero Daida , Fumero Ascensión
Published: April 2024

Adverse life events have been shown to increase the chances of harmful thoughts, or behavior against oneself. This study aims to fill this gap by identifying how adverse life events (witnessing a friend’s or family member’s self-injury, eating behavior problems, concern about sexual orientation, physical or sexual abuse) experienced by adolescents and young adults are associated with different indicators of suicidality and non-suicidal self-injury behaviors, according to gender and age. Participants were 625 young people aged between 12 and 25 years (Mean = 15.91, SD = 2.44), of whom 61.7% were girls. Of total participants, 53.44% reported adverse life events. Physical or sexual abuse was more associated with suicidality and non-suicidal self-injury compared to being witness to a friend’s self-injury. Girls who experienced physical abuse had more suicidal ideation than boys, while boys who experienced sexual abuse had more suicidal ideation than girls. Young adults who had experienced sexual abuse and those who witnessed a friend’s self-injury reported more non-suicidal self-injury attempts than adolescents in the same situations. For eating problems, adolescents showed more non-suicidal self-injury attempts than young adults. The findings underline the importance of considering adverse life events in order to prevent suicidality and non-suicidal self-injury behavior.
Health, psychosocial and cognitive factors associated with anxiety symptoms
Authors: Mendoza Lina Sofía Moreno , Trujillo-Güiza Martha , Forero Diego A. , Baez Sandra
Published: April 2024

Anxiety disorders are the most prevalent psychological conditions among adults worldwide. However, further research is needed on the role of variables such as health indices, stressful events, social cognition, and executive functioning in predicting anxiety symptoms. We conducted two studies to explore the association between these variables and anxiety symptoms in adults. In the first study, we evaluated 548 participants ranging in age from 18 to 73. We administered two anxiety scales and two instruments to assess physical and mental health dimensions and the number of threatening life events experienced. A subsample of 275 participants participated in the second study, where they completed tasks measuring working memory, verbal fluency, and emotion recognition. We used linear regression models to identify the relationship between participants’ anxiety levels and demographic, health, and psychosocial variables. In the first study, our findings revealed that participants with poorer mental and physical health and those who had experienced more stressful events displayed higher anxiety levels. Age, sex, physical and mental health were significant predictors of anxiety scores. In the second study, we identified negative correlations between anxiety and social cognition and executive function scores. However, only executive functions emerged as a predictor for anxiety. Overall, the factors of sex, age, mental and physical health, and executive function performance appear to be relevant in understanding anxiety levels and symptoms in adults.
Just transformations through resilience experiments? Comparing policy rationales and narratives of the Global South and North in the Resilient Cities Network
Authors: Kochskämper Elisa
Published: April 2024

The Resilient Cities Network, formerly known as the 100 Resilient Cities, supports the development of local resilience policies in partaking cities from around the globe. Various policies in the network are an example of an upcoming trend where experiments are increasingly conducted in the urban space to shape governance. Experiments in this context are purposeful interventions to increase resilience through learning and the temporal and spatial diffusion of results. Experimentation and resilience are highlighted in the literature on political ecology for policies presumably leading to urban transformations. Both approaches face strikingly similar critiques, namely that related rationales and narratives frequently maintain the political and economic status quo and reproduce socially unjust urban realities. However, they are rarely examined together and empirical findings are missing when it comes to comparative research; particularly between the Global South and North.

Against this background, this paper asks: Which role plays social justice in rationales and narratives of resilience experiments in Global South and Global North cities? I examine experimental policy actions in Global South and North cities of the Resilient Cities Network (N = 112) qualitatively through an analytic lens that links a social justice understanding to the setting, agency, and design of resilience experiments. Based on this analysis, I compare the results to explore emerging patterns of the role given to social justice in urban resilience experimentation across cities of the Global South and North. The findings show that narratives in Global North cities revolve stronger around recognising social justice, but Global South cities put more emphasis on marginalised groups and learning mechanisms that potentially foster social justice through output legitimacy.
To Embed Geosites In An Area wıth Great Tourism Activity: A Proposal for Köyceğız, Türkiye
Authors: Gürer Aysan , Gürer Ömer Feyzi , Sanğu Ercan , Çevik Metin , Benli Ekin Gökçe
Published: April 2024

Köyceğiz Region offers a fascinating beauty with its lakes, long sandy beaches, rivers, as well as mountains and hills covered with pine, sweetgum and mastic tree forests. Therefore, there is an intense visitor activity in the region. In addition, there are well-marked, year-round hiking and cycling routes around the mountains and lakes in Köyceğiz. On some of these routes, eco-sites have been identified and explanatory panels have been placed. However, geosites have not been identified in the region for the geological structures that carry all this ecological diversity. In fact, the Köyceğiz Region is one of the typical regions that presents geological stories from the paleotectonic and neotectonic periods together. Our proposal in this study is to select geosites on existing nature routes that reflect the geological story of the region and to develop explanatory panels for them. In this study, we have identified geosites located on nature tourism routes in the region and described their geoscientific content. By installing panels on geosites, the geo-ecological systems located on the routes will be able to explain themselves to travelers. This is a new geo-eco-tourism approach with a small budget, aimed at existing visitors in the region, without trying to attract visitors to the area.
Women in engineering, science and technology in sub-Saharan Africa: cultural attitudes, challenges, and gaps affecting clinical engineering and medical devices maintenance practices
Authors: Maccaro Alessia , Oronti Iyabosola Busola , Zito Eugenio , Piaggio Davide , Pecchia Leandro
Published: April 2024

Purpose

From previous studies, we had observed that the number of biomedical engineers and technicians (BMETs) skilled in the maintenance of medical devices (MDs) were limited in sub-Saharan Africa (SSA) and that a likely parallelism existed between BME maintenance-related tasks and house chores mainly carried out by women in daily life. Our objective in carrying out this study was to understand underlying local cultural and social factors and domestic traditions interfering with the inclusion of women in the field of clinical and biomedical engineering (BME), and to identify existing gaps in opportunities for women in Engineering, Science and Technology (EST) in this region.

Methods

We carried out an online survey involving 51 respondents (70.6% women, 29.4% men), to investigate gender-biased and cultural perceptions of maintenance-related tasks among engineers/technologists/technicians in BME and other allied professions in SSA​. The survey was refined through focus groups and pilot tests to assess its validity, and then shared among specific associations of women in engineering and other bodies in EST, as well as some hospital communities and institutions.

Results

The survey brought to light evidence of prejudices against women in the society and workplace and showed that the adoption of our parallelism hypothesis has potential for increasing medical device maintenance practices in SSA hospitals.

Conclusions

There is an apparent need to further study the possible effects of this sociological model through leveraging local culture and domestic traditions in ways that could ultimately increase the leadership and numbers of women BMETs in SSA.
Addressing future food demand in The Gambia: can increased crop productivity and climate change adaptation close the supply–demand gap?
Authors: Carr Tony W. , Addo Felicity , Palazzo Amanda , Havlik Petr , Pérez-Guzmán Katya , Ali Zakari , Green Rosemary , Hadida Genevieve , Segnon Alcade C. , Zougmoré Robert , Scheelbeek Pauline
Published: April 2024

With rising demand for food and the threats posed by climate change, The Gambia faces significant challenges in ensuring sufficient and nutritious food for its population. To address these challenges, there is a need to increase domestic food production while limiting deforestation and land degradation. In this study, we modified the FABLE Calculator, a food and land-use system model, to focus on The Gambia to simulate scenarios for future food demand and increasing domestic food production. We considered the impacts of climate change on crops, the adoption of climate change adaptation techniques, as well as the potential of enhanced fertiliser use and irrigation to boost crop productivity, and assessed whether these measures would be sufficient to meet the projected increase in food demand. Our results indicate that domestic food production on existing cropland will not be sufficient to meet national food demand by 2050, leading to a significant supply–demand gap. However, investments in fertiliser availability and the development of sustainable irrigation infrastructure, coupled with climate change adaptation strategies like the adoption of climate-resilient crop varieties and optimised planting dates, could halve this gap. Addressing the remaining gap will require additional strategies, such as increasing imports, expanding cropland, or prioritising the production of domestic food crops over export crops. Given the critical role imports play in The Gambia’s food supply, it is essential to ensure a robust flow of food imports by diversifying partners and addressing regional trade barriers. Our study highlights the urgent need for sustained investment and policy support to enhance domestic food production and food imports to secure sufficient and healthy food supplies amidst growing demand and climate change challenges.
Australian teachers’ adoption of critical and creative thinking as curriculum
Authors: Murphy Kylie , Murphy Steve , Swain Nathaniel
Published: April 2024

Critical and creative thinking (CCT) was introduced as a General Capability in the Australian Curriculum in 2010, heralded as a call for more explicit teaching of CCT. This study was an online survey of 259 Australian teachers, exploring how they have adopted CCT as curriculum, including how confident they feel about this area of their teaching and what aspects of Australia’s CCT curriculum they teach and how. Most respondents believed it was important to teach CCT, but only a minority could recall professional learning in this area, and their confidence levels tended to be only moderate. The teachers were asked to provide examples of what they ‘say’ and ‘do’ in their teaching that best reflect their ‘typical’ approaches to teaching CCT. The examples indicated that they typically incorporated CCT into their teaching of other learning areas. However, the examples were mostly focused on only a few of the CCT General Capability sub-elements and were mostly of teachers providing students opportunities to engage in CCT skills, rather than explaining, modelling, scaffolding, or reinforcing the skills. For teachers to teach CCT more confidently and impactfully, improved professional learning and a more conducive CCT curriculum would assist.
Indigenous voices: reimagining Indigenous education through a discourse of excellence
Authors: Shay Marnee , Miller Jodie , Hameed Suraiya , Armour Danielle
Published: April 2024

The persistent deficit positioning of Indigenous students has meant that the combined terms ‘Indigenous education’ and ‘excellence in education’ have been kept separate in mainstream discourse. Excellence in education is an under-theorised concept that must consider intercultural and diverse perspectives. Consequently, this paper aims to understand excellence in education through Indigenous peoples’ perspectives regarding how excellence in Indigenous education is (or could be) enacted in schools. This paper reports on findings from a pilot study with Indigenous community members, principals, teachers, and support staff. The research aimed to address the question: How do Indigenous education practitioners define excellence in Indigenous education? This qualitative study used appreciative inquiry, which allowed for an in-depth understanding of the phenomenon and multiple contextual and localised examples from everyday community members, educational practitioners, and leaders. The data show that employing a language underpinned by strengths can change the conversation, expectations, and aspirations in Indigenous education, as framing through excellence may shift the ideology of policy and, thus, the interpretation of enactment in Indigenous education.
X-linked Alport syndrome presenting in mother and son with the same unique histopathological features
Authors: Bergeron Nicolas A. D. , Garneau Alexandre P. , Rousseau-Gagnon Mathieu , Riopel Julie , Isenring Paul
Published: April 2024

Alport syndrome has been linked to three different genes, that is, COL4A3, COL4A4 and COL4A5. It is characterized by progressive and non-specific glomerulosclerosis with irregular thickening of the glomerular basement membrane (GBM). At times, the histopathologic picture is dominated by lesions that are consistent with focal and segmental glomerulosclerosis or IgA nephropathy. Here, we report the cases of two related individuals (mother and son) who were diagnosed with COL4A5-related Alport syndrome due to a missense variant (p.Gly1170Ser) in a G-X-Y repeat and found to present the same highly unusual histopathological abnormalities on their kidney biopsies. One of the abnormalities shared, which does not appear to have been reported, was reduced COL4A5 immunolabeling that was limited to Bowman’s capsule even though the ultrastructure of the GBM was distorted. The other abnormality was superimposed segmental IgA deposition in both individuals, accompanied by mesangial changes in the mother. We feel that these findings provide novel insight into the mechanisms of disease manifestation in Alport syndrome. They suggest, in particular, that collagen expression and/or assemblies in Bowman’s capsule is more vulnerable to missense mutations in COL4A5 than elsewhere in the kidney. Our findings also suggest that certain coinherited gene polymorphisms act as unexpectedly important phenotypic determinants in COL4A-related disorders.
State-dependent trust region for successive convex programming for autonomous spacecraft
Authors: Bernardini Nicolò , Baresi Nicola , Armellin Roberto
Published: April 2024

Spacecraft trajectory optimization is essential for all the different phases of a space mission, from its launch to end-of-life disposal. Due to the increase in the number of satellites and future space missions beyond our planet, increasing the level of autonomy of spacecraft is a key technical challenge. In this context, traditional trajectory optimization methods, like direct and indirect methods are not suited for autonomous or on-board operations due to the lack of guaranteed convergence or the high demand for computational power. Heuristic control laws represent an alternative in terms of computational power and convergence but they usually result in sub-optimal solutions. Successive convex programming (SCVX) enables to extend the application of convex optimization to non-linear optimal control problems. The definition of a good value of the trust region size plays a key role in the convergence of SCVX algorithms, and there is no systematic procedure to define it. This work presents an improved trust region based on the information given by the nonlinearities of the constraints which is unique for each optimization variable. In addition, differential algebra is adopted to automatize the transcription process required for SCVX algorithms. This new technique is first tested on a simple 2D problem as a benchmark of its performance and then applied to solve complex astrodynamics problems while providing a comparison with indirect, direct, and standard SCVX solutions.
Relationship Between Individual and Composite FMS™ Scores with the Anthropometric and Physical Characteristics of Elite Touch (Rugby) Players
Authors: Thorpe Cari , Dobbin Nick , Twist Craig , Callaghan Michael
Published: April 2024

Purpose

To describe and compare the movement patterns, anthropometric and physical characteristics of male and female Touch players; and examine the relationships between Functional Movement Screening (FMS™) scores and the anthropometric and physical characteristics.

Methods

This was a cross-sectional study with 35 elite Touch players (18 males, age = 24.7 ± 4.9 years; 17 females, age = 26.7 ± 5.2 years). Anthropometric (stature, body mass) and physical characteristics (sprint times, glycolytic change-of-direction test, and countermovement jump (CMJ) flight time and peak power) were assessed alongside movement patterns using the FMS™ battery. Data were analysed for between-sex differences (independent t-test, Mann–Whitney U) and relationships (Spearman’s correlation coefficient).

Results

Between-sex differences in body mass (t = 6.082, P < 0.001), stature (t = 9.247, P < 0.001), CMJ flight time (t = 3.576, P = 0.001), relative CMJ peak power (t = 6.578, P < 0.001), 10 m sprint time (t = 15.861, P < 0.001), glycolytic change of direction test time (t = − 11.831, P < 0.001) and Yo–Yo IR1 (t = 6.842, P < 0.001) were observed. There were  minimal differences for deep squat (Z = − 1.036, P = 0.443), in-line lunge (Z = − 1.284, P = 0.303), shoulder mobility (Z = − 0.173, P = 0.883), trunk stability push-up (Z = − 0.896, P = 0.483) and rotary stability (Z = − 1.537, P = 0.273). The correlation between total and individual FMS™ scores with anthropometric and physical characteristics ranged from trivial-to-moderate (r = − 0.502 to 0.488).

Conclusion

The lack of difference for the FMS™ composite score and small-to-trivial differences in individual scores allows a comparison between mixed populations within Touch. Whilst many of the correlations were trivial-to-small, there were differences between sexes in the associations and evidence that improvements in functional deficiencies could translate into improved physical performance.
Essential phospholipids impact cytokine secretion and alter lipid-metabolizing enzymes in human hepatocyte cell lines
Authors: Wupperfeld Dominik , Fricker Gert , Bois De Fer Béatrice , Popovic Branko
Published: April 2024

Background

Essential phospholipids (EPL) are hepatoprotective.

Methods

The effects on interleukin (IL)-6 and -8 secretion and on certain lipid-metabolizing enzymes of non-cytotoxic concentrations of EPL (0.1 and 0.25 mg/ml), polyenylphosphatidylcholine (PPC), and phosphatidylinositol (PtdIns) (both at 0.1 and 1 mg/ml), compared with untreated controls, were assessed in human hepatocyte cell lines (HepG2, HepaRG, and steatotic HepaRG).

Results

Lipopolysaccharide (LPS)-induced IL-6 secretion was significantly decreased in HepaRG cells by most phospholipids, and significantly increased in steatotic HepaRG cells with at least one concentration of EPL and PtdIns. LPS-induced IL-8 secretion was significantly increased in HepaRG and steatotic HepaRG cells with all phospholipids. All phospholipids significantly decreased amounts of fatty acid synthase in steatotic HepaRG cells and the amounts of acyl-CoA oxidase in HepaRG cells. Amounts of lecithin cholesterol acyltransferase were significantly decreased in HepG2 and HepaRG cells by most phospholipids, and significantly increased with 0.1 mg/ml PPC (HepaRG cells) and 1 mg/ml PtdIns (steatotic HepaRG cells). Glucose-6-phosphate dehydrogenase activity was unaffected by any phospholipid in any cell line.

Conclusions

EPL, PPC, and PtdIns impacted the secretion of pro-inflammatory cytokines and affected amounts of several key lipid-metabolizing enzymes in human hepatocyte cell lines. Such changes may help liver function improvement, and provide further insights into the EPL’s mechanism of action.
Prevalence of tick infestation and molecular characterization of tick species of camels (Camelus dormedarius) from Al-Baha South Saudi Arabia
Authors: Alghamdi Samia Q.
Published: April 2024

Arthropods serve as efficient carriers for various life-threatening infections parasites, viruses and other harmful organisms throughout the world. In this study, Al-Aqiq Governorate of Al-Baha city served as the site where tick burden on camels (Camelus dromedarius) was assessed. The aim of the present investigation was to determine the diversity and prevalence of ticks. A total of 800 ticks, 756 adults and 44 nymphs were gathered and identified. Tick DNA was obtained from camels by utilizing commercially available kits. Polymerase chain reaction (PCR) was done on recovered DNA utilizing 12S rDNA and 16S ribosomal DNA fragments to analyze and identify the ticks. Three species of hard ticks were found in the two genera Hyalomma and Rhipicephalus. Hyalomma dromedarii (81.81%) and H. rufipes (17.35%) were the two species with the highest prevalence found on the domestic animal hosts, whereas R. sanguineus (had the lowest prevalence of 0.82%). This is a preliminary report of DNA barcode of tick species of camels (Camelus dormedarius) from Al-Baha in KSA and the Arabian Peninsula, which is a significant step towards broader phylogenetic studies on tick samples from this region. The results of our study provide valuable insights for healthcare administrators and government authorities regarding the frequency of hard ticks on mammalian hosts in Al-Aqiq Governorate of Al-Baha City, Saudi Arabia. This can also assist in regulating tick diseases, in particular during the epidemic time.