Critical Level Research Articles

Land Cover and Land Use Ontology—Evolution of International Standards, Challenges, and Opportunities

Knowledge of land is of central importance to manage the impact of mankind upon the environment. The understanding and treatment of land vary greatly across different regions and communities, making the description of land highly specific to each locality. To address the larger global issues, such as world food production or climate change mitigation, one needs to have a common standardized understanding of the biosphere cover and use of land. Different governments and institutions established national systems to describe thematic content of land within their jurisdictions. These systems are all valid and tuned to address various national needs. However, their integration at regional or global levels is lacking. Integrating data from widely divergent sources to create world datasets not only requires standards, but also an approach to integrate national and regional land cover classification systems. The ISO 19144 series, developed through the collaboration between the Food and Agriculture Organization of the United Nations (FAO) and the International Organization for Standardization (ISO), offers a meta-language for the integration of disparate land classification systems, enhancing interoperability, data sharing, and national to global data integration and comparison. This paper provides an overview of classification system concepts, different stages for the development of standards in ISO and the status of different standards in the ISO 19144 series. It also explores the critical role of the ISO 19144 series in standardizing land cover and land use classification systems. Drawing on practical case studies, the paper underscores the series’ potential to support global sustainable development goals and lays out a path for its future development and application. Using these standards, we gain not only a tool for harmonizing land classification, but also a critical level for advancing sustainable development and environmental stewardship worldwide.

Impact assessment of multiple pressures on ecosystem services with a state and transition model: Application to Posidonia oceanica seagrass meadows

A significant challenge in the integration of ecosystem services into decision-making processes lies in effectively capturing the dynamics of marine socio-ecological systems, including their evolutionary pathways, equilibrium states, and tipping points. This paper explores the evolutionary trajectories of a vital marine ecosystem endemic to the Mediterranean Sea: the Posidonia oceanica seagrass meadows, in response to various drivers of change. A state-and-transition model is employed to assess the ecosystem services provided by P. oceanica across different states defined by selected transitions, such as overfishing, fragmentation, pollution, and invasion by non-native species. To apply this model, scientific expertise is combined with field data generated using the Ecosystem-Based Quality Index to evaluate the conservation status of P. oceanica. This integrated approach allows for the representation of the ecosystem services offered by the meadows across different states, leveraging ecological data. The findings highlight the disproportionate impact on provisioning services, particularly sea urchins and commercial fish production, which suffer the most under various stressors. Notably, when these services decline to critical levels, the meadows cease to provide significant benefits. Finally, a synthesized representation is presented, merging ecological insights with monitoring data, offering a framework that is more accessible to stakeholders and decision-makers.

Impact of environmental air pollution on respiratory health and function.

Environmental air pollution presents a considerable risk to global respiratory health. If critical levels are exceeded, inhaled pollutants can lead to the development of respiratory dysfunction and provoke exacerbation in those with pre-existing chronic respiratory disease. Over 90% of the global population currently reside in areas where environmental air pollution is considered excessive-with adverse effects ranging from acute airway irritation to complex immunomodulatory alterations. This narrative review provides an up-to-date perspective concerning the impact of environmental air pollution on respiratory health and function and describes the underpinning mechanisms that contribute to the development and progression of chronic respiratory disease.

Mediating Effects in The Structural Equation Model of Malaysian Public Service Competitiveness

These days, public service performance is determined by competitiveness. Due to a prolonged period of stagnation, Malaysia's competitive performance is at a critical level. The public service is therefore under pressure to demonstrate that all policies and programs are highly valued. This study aims to determine the primary variables influencing the ability of Malaysia's public services to compete. Data were acquired through surveys completed by 373 respondents from 26 ministries. The relationships between talent management, human capital, and competitiveness were analysed using structural equation modelling. The results indicate a significant and positive relationship between talent management and competitiveness, with human capital serving as a significant partial mediator. This study highlights the direct importance of talent management for public services competitiveness and its indirect impact through human capital. These insights can assist policymakers in developing a strategic framework to keep the Malaysian public service competitive.

Reference Hallucination Score for Medical Artificial Intelligence Chatbots: Development and Usability Study.

Artificial intelligence (AI) chatbots have recently gained use in medical practice by health care practitioners. Interestingly, the output of these AI chatbots was found to have varying degrees of hallucination in content and references. Such hallucinations generate doubts about their output and their implementation. The aim of our study was to propose a reference hallucination score (RHS) to evaluate the authenticity of AI chatbots' citations. Six AI chatbots were challenged with the same 10 medical prompts, requesting 10 references per prompt. The RHS is composed of 6 bibliographic items and the reference's relevance to prompts' keywords. RHS was calculated for each reference, prompt, and type of prompt (basic vs complex). The average RHS was calculated for each AI chatbot and compared across the different types of prompts and AI chatbots. Bard failed to generate any references. ChatGPT 3.5 and Bing generated the highest RHS (score=11), while Elicit and SciSpace generated the lowest RHS (score=1), and Perplexity generated a middle RHS (score=7). The highest degree of hallucination was observed for reference relevancy to the prompt keywords (308/500, 61.6%), while the lowest was for reference titles (169/500, 33.8%). ChatGPT and Bing had comparable RHS (β coefficient=-0.069; P=.32), while Perplexity had significantly lower RHS than ChatGPT (β coefficient=-0.345; P<.001). AI chatbots generally had significantly higher RHS when prompted with scenarios or complex format prompts (β coefficient=0.486; P<.001). The variation in RHS underscores the necessity for a robust reference evaluation tool to improve the authenticity of AI chatbots. Further, the variations highlight the importance of verifying their output and citations. Elicit and SciSpace had negligible hallucination, while ChatGPT and Bing had critical hallucination levels. The proposed AI chatbots' RHS could contribute to ongoing efforts to enhance AI's general reliability in medical research.

Impacts of glacial discharge on the primary production in a Greenlandic fjord

Subglacial discharge from marine-terminating glaciers in Greenland injects large volumes of freshwater and suspended sediment into adjacent fjord environments. Although the discharge itself is nutrient poor, the formation of meltwater plumes can enhance marine biological production by stimulating upwelling of nutrient-rich fjord water. Despite the importance of meltwater discharge to marine ecosystems, little is known of the quantitative impact of discharge processes on phytoplankton growth, including the effects of local plumes, fjord-wide stirring and mixing, and suspended sediments on net primary production (NPP). Here, we report simulations of Bowdoin Fjord in northwestern Greenland using coupled non-hydrostatic ocean circulation and lower-trophic level ecosystem models, developed using field data. Our findings demonstrate that subglacial discharge plays a crucial role in NPP by stirring and mixing the entire fjord water system, which has a greater effect on NPP than local plume upwelling. Sensitivity tests suggest a 20% increase in NPP under conditions of enhanced discharge anticipated in the future. However, if glacier discharge and retreat exceed critical levels, NPP is predicted to decline by 88% relative to present values. This pattern reflects the negative impact of increased sediment flux on photosynthesis and weakened fjord stirring and mixing resulting from shallower outlet depths.

A scoping review of the graduate outcome literature

Higher education (HE) policymaking is increasingly concerned with graduate outcomes. Policies often use narrow economic metrics, such as employment rates and salaries, to set strategic goals for HE and assess `value for money´. Despite this policy relevance, little attempt has been made to assess the academic literature in this area. The field’s strengths and weaknesses, areas of focus and level of criticality are unknown, leaving us unable to judge its ability to inform policy. This paper addresses this gap using a novel two-phase scoping review method. Phase 1 assesses literature that explicitly uses the term `graduate outcome´, finding a field that is largely fragmented into subfields. Phase 2 then performs a series of `top-level´ scoping reviews on each sub-field and combines them to assess the `overall´ literature. This `overall´ literature is found to share HE policy’s focus on economic graduate outcomes. While several well-developed non-economic subfields exist, such as critical thinking and lifelong learning, these are comparatively small. A limited proportion of the literature considers issues of inequality and other `critical´ topics. If research is to better inform policy in this area, it would be beneficial to develop a broader and more critical research programme.

Introduction to Trauma-Informed Counselor Education and Supervision (TICES) Framework

Many counselors in training may be susceptible to traumatization and/or retraumatization during their training process due to the elevated prevalence of their past trauma experience and the nature of their professional work involving exposure to trauma narratives in coursework and during fieldwork. Recognizing the growing need for a trauma-informed approach in training future helping professionals, including counselors-in-training, we present an overview of a framework called the Trauma-Informed Counselor Education and Supervision (TI-CES). This framework draws on assumptions and principles from trauma-informed care (TIC). Also, we address the applications of four key assumptions (i.e., Realize, Recognize, Respond, and Resist retraumatization) and six principles (i.e., Safety; Trustworthiness and transparency; Peer support; Collaboration and mutuality; Empowerment, voice, and choice; and Cultural, historical, and gender issues) of the TIC. These assumptions and principles are specifically tailored to address the unique challenges and needs of counselor education and supervision. In addition, we offer stepwise key recommendations to prevent (re) traumatization and mitigate the impacts of trauma exposure at three critical levels: throughout the program admission, during the program, and after exposure to traumatic components of training. By following the recommendations, counselor educators and supervisors can create a supportive and safe environment that fosters the well-being of counselors-in-training while equipping them to respond effectively to potentially traumatizing components in their training.

Potassium Availability in Tropical Sandy Soils and Cassava Response to Three-Year K Fertilization

ABSTRACT Potassium (K) is the primary limiting nutrient for cassava, being essential to achieve sustainably satisfactory cassava yields in low K reserve sandy soils that require proper K fertilization to avoid depleting the soil K reserve. Soil K dynamics, the growth, and yield responses of cassava were investigated using varying K fertilizer rates (0, 25, 50, 75, 100, and 125 kg K2O/ha). Four on-farm experiments were conducted in major cassava-producing areas, Northeast Thailand during 2019–2021 year. Cassava responded positively to K, producing yield increases up to 132%, with the highest tuber yield obtained being in the range 100–125 kg K2O/ha. Mineral K was the main K source for cassava grown without K fertilization, which resulted in the poorest growth and yield quantities. Potassium fertilization significantly promoted the uptake of K by cassava, especially in the tuber, causing a negative K balance due to the large removal from the soil, even when the K fertilizer compensated to some degree. Potassium use efficiency of cassava was low, particularly with K fertilization at the highest rate, which reflected intense leaching of the soil. The critical level of soil-available K, identified using a linear-plateau model, was 40.55 mg/kg for 90% relative yield, suggesting the potential to increase K use efficiency through better fertilization guidelines. Our findings suggested that K fertilization of cassava annually is advisable for better yields and to avoid progressive depletion of the soil K capital, even though the residual K from K fertilizer contributed to available K in soils.

Study of stellar properties under TESS satellite observations

This study employs data from the TESS satellite to investigate the properties of stars. TESS, the Transiting Exoplanet Survey Satellite, offers insights into star activity, periodic variations, and planetary transits by monitoring changes in stellar brightness. Our analysis of TESS data explores critical star attributes, including mass, luminosity, activity levels, and dynamic changes. By examining the relationship between these stellar properties and the presence of planets, we aim to uncover the intricate interplay between celestial bodies and unveil the universe's mysteries. This research encompasses data collection methods, processing techniques, and data analysis approaches, addressing star classifications, parameters, and periodic stellar activity. We also delve into flare energy, which reveals the energy released during stellar flares, and photoperiodic analysis, a tool for understanding periodic light changes in celestial bodies. The study concludes by highlighting the significance of newly discovered planets and the diversity of stars observed by TESS. It underscores the importance of comprehending the connections between stars and planets, shaping our understanding of celestial habitability. In summary, this study enriches our knowledge of star and planet properties, contributing to a broader comprehension of the universe. Through our analysis, we seek to illuminate the complex relationships between celestial entities and unveil the universe's enigmas.

Penilaian Tingkat Kekeritisan Lahan Pertambangan dan Beberapa Pengguanaan Lahan Lainnya di Kalimantan Selatan

Critical land is land that is no longer productive from an agricultural perspective, because management and use do not consider land management requirements and soil conservation principles. This research aims to assess the level of criticality of land based on the level of erosion that occurs at various coal mining land locations in several districts in South Kalimantan. This research is non-experimental research using exploratory descriptive methods. The data collected is secondary data obtained through official publications from the Environmental Service and related agencies from several environmental documents of coal mining companies that have received approval from the authorized Agency. The secondary data used is the data needed to calculate the amount of erosion which is used as a basis for evaluating land criticality. These data include: soil texture, permeability, bulk density, rainfall, slope and slope length, management factors, land cover vegetation factors and soil organic C. Erosion estimation uses the Universal Soil Loss Equation (USLE) method. The results of erosion calculations using USLE show that in open mine land in Banjar Regency it is 233.9 tons ha-1 year-1, while in Tanah Laut Regency is 173.1 tons ha-1 year-1 and in Kotabaru Regency is 275.1 tons ha-1 year-1. The level of criticality of land in the mining area is at a critical and very critical level compared to natural land and cultivated land due to differences in erosion values ​​and also the thickness of the soil solum studied.

Synchronizing the Supply of Components for Automotive Assembly amid Chip Shortages and Other Supply Delays

The push for more battery-powered electric vehicles, the COVID-19 pandemic, and other global supply chain destabilizing events (e.g., the war in Ukraine) have made it necessary for manufacturers to consider innovative approaches to sourcing and materials management. This study assesses the value of sharing delivery due date updates, which are then used to convert spent time into a fraction of the expected total time for order fulfillment (i.e., progress updates), to synchronize the delivery of components for an automotive manufacturer who, amid long and variable lead times for semiconductor chips, maintains a strategy of waiting for the delivery of all needed parts before commencing production. Having progress updates in a fractional form puts numerical bounds (i.e., 0% to 100%) on the shared information, and this facilitates closed-form analytical comparisons. We develop analytical models to show decreases in expected assembly-related costs based on the progress update information shared between two suppliers—one supplier has a shorter and more reliable order fulfillment lead time than the other. When there are more than two suppliers, we use a simulation model to estimate the expected value of sharing progress updates. Our results show that increasing the frequency of shared progress updates, and having more suppliers share progress updates, results in increased cost-savings percentages. However, the opposite occurs with increasing uncertainty in suppliers’ delivery lead times. The computational study provides support for the existence of a critical mass level of suppliers needed to achieve a given percentage cost saving. This study can help automakers to make informed decisions on encouraging information sharing among suppliers, by first creating a critical mass of suppliers to share progress updates. Our investigations also help show the conditions in which to best leverage such information sharing strategies while waiting for the delivery of all needed components prior to production.

Critical points for the processing of personal data by the government: An empirical study in Brazil

The General Law for the Protection of Personal Data (LGPD), issued in Brazil in August 2018, establishes as one of the legal bases for the processing of personal data the execution of public policies by the State. A systematic review of the literature identified the existence of six critical points that represent challenges for public managers in the elaboration and implementation of policies that require the processing of personal data. The objective of this research is to establish the levels of criticality of the factors identified by the literature review, as well as to verify the existence of other critical points on which the literature has not yet advanced. To this end, a group of 11 specialists was selected to participate in the research that used the Delphi Method, a technique that consists of applying a set of questionnaires sequentially and individually, in order to establish a dialog between the participants and build a collective response. The results indicate a coherence between what was verified in the theory and the perception of the specialists. Another 10 critical points for the processing of personal data by the government were mentioned by the participants. In general, the main elements of tension identified addressed the lack of training of public officials and the sharing of personal data.

Within – Country diversity and economic output: The role of financial development

This study investigates the relationship between within-country diversity, financial development, and economic output with a particular focus on the moderating role of financial development. Analyzing data from a diverse set of countries, we find that both religious and language diversity exhibit negative associations with economic performance. However, in emerging economies, a positive interaction between linguistic and religious diversity emerges. Notably, robust financial development positively moderates the relationship between diversity and economic output, with identified thresholds indicating a critical level necessary to mitigate the adverse consequences of cultural diversity. Our findings highlight the essential role of financial systems in fostering trust and promoting economic growth, particularly in high-diversity contexts. Our findings are robust to a battery of alternative tests. By emphasizing the importance of financial development in navigating within-country heterogeneities, this study offers valuable insights for policymakers seeking to foster inclusive and sustainable development strategies.

EFFECTS OF SYMBIOTIC BACTERIA IN PATHOGENIC INTERACTIONS: THE CASE OF BATRACHOCHYTRIUM DENDROBATIDIS AND PSEUDOMONAS SP. IN AMPHIBIAN POPULATIONS

The decline in amphibian populations in recent decades may be linked to the occurrence of infectious diseases such as chytridiomycosis, which is caused by the chytrid fungus Batrachochytrium dendrobatidis (Bd). It is known that symbiotic bacteria protect the host due to their inhibitory nature. However, how the population dynamics of amphibians is affected by additional effects provided by symbiotic bacteria has not been analyzed in depth. In this paper, a model is proposed to describe the interaction among susceptible amphibians, susceptible amphibians with symbiotic bacteria and amphibians with chytrid fungus. When the modeling takes into account the additional reproductive benefits that the symbiont Pseudomonas sp. grants to the host, multiple endemic equilibrium points can exist if [Formula: see text] ([Formula: see text] is the basic reproduction number for Bd). In this scenario, the existence of a subcritical bifurcation at [Formula: see text], which can occur in two different disease-free equilibrium points, gives rise to complex dynamics and stability scenarios. Particularly, the analysis of the model shows that a sudden increase of fungus-infected amphibians can occur even when [Formula: see text] due to bistability phenomena. In this scenario, the existence of a subcritical bifurcation, which translates for the fungus into colonization even for values of [Formula: see text] less than one, represents an advantage for the chytrid fungus Batrachochytrium dendrobatidis since the pathogen should benefit from remaining as close as possible to an endemic equilibrium. To control the fungal infection, [Formula: see text] must be reduced to a value below one until the endemic equilibrium points disappear. Finally, we show that the amphibian population can reach a critical population level close to an extinction scenario when [Formula: see text] increases.

“We’re All in This Together”: Farmers’ Reactions to the Farmer Suicide Crisis

ABSTRACT Farmer suicide rates continue to increase, with levels being 1.5 times higher than the national rate. This has led agricultural and public health groups to craft and distribute farm stress and suicide messages to help farmers. However, suicide rates remain at critical levels indicating that there may be a disconnect between existing efforts and farmer sensemaking of the crisis. Utilizing the Theory of Memorable Messages (ToMM), this study explored how farmers are reacting to messages and conversations about the farmer suicide crisis. Interviews with 25 participants found most had heard about farmer suicide concerns. When asked about their memorable conversations, farmers reflected a complex sensemaking process that included themes of memorable conversation types ranging from externalization to acceptance and message themes oriented around concern for self and others within these conversation types. Overall, most farmers externalized the risk of suicide to other farmers. However, even though participants did not see themselves at risk, their responses often showed deep concern for helping other farmers. These results are discussed in light of sensemaking and memorable conversations, with practical implications for future messaging efforts around farmer suicide.

Seasonal variation effect on water quality and sediments criteria and its influence on soil pollution: Fayoum Governorate, Egypt

BackgroundIrrigation with low-quality water without considering the acceptable levels negatively impacts not only humans, but also extends to the whole surrounding ecosystem. The current research is a comprehensive-integrated appraisal of the irrigation water quality gathered from El-Batts drain in Fayoum Governorate, from September 2021 to June 2022, together with the drain sediments and the soils adjacent to it. The characteristics (physical, chemical and biological), and the risk fate of some heavy metals (As, B, Cr, Cu, Zn, Cd, Pb, Ni, Fe and Mn) were measured. Moreover, the risks of the studied pollutants were assessed using many indices: irrigation water quality index (IWQI), contamination factor (Cf), degree of contamination (Cd), Salinity indices and Zn equivalent (ZE). Additionally, kinetic studies of the inorganic pollutants were evaluated to determine their availability and impact on the surrounding environment.ResultsData from IQWI showed that water in all five sites was assumed to be very bad and unsuitable for usage with a general average (14.62 and 25.35) in all four seasons. ZE exceeds the critical level of 250, which means there is a risk of soil contamination.ConclusionsThe elevated levels of heavy metals, microbial enzymes, pathogenic fecal coliform and Salmonella reflect bad and direct risk of dealing with such water in irrigation and its effect on the soil ecosystem and the growing crops. Most of the tested parameters exceeded the acceptable levels of the Egyptian Governmental Law Guidelines, WHO and FAO, which may threaten aquatic life. Best managements practices and remediation techniques should be applied to minimize the hazards in such waters.

System Design Based on Biological Olfaction for Meat Analysis Using E-Nose Sensors.

The deterioration of food, especially in meat products, can lead to serious health problems. Even with modern preservation technologies, a significant amount of food is lost due to microbial deterioration. As the very first step of the preservation process, the microflora that grows during the storage time and in spoiling foods should be well-known to identify critical levels. Electronic nose and gas chromatography analysis systems can provide sensitive and promising results. Similarly, bacterial analysis is an important process for determining bacterial groups that result in the emergence of such gases in gas chromatography-mass spectrometry (GC-MS) analysis during the degradation time. This study aims to determine the degradation levels for some meat types under different environmental conditions, such as temperature and duration, to compare with other measurement techniques for evaluating the verification of data. E-nose device, developed in this study, can detect carbon monoxide (CO), methane (CH4), ethanol (C2H5OH), and ammonia (NH3) using metal oxide semiconductor (MOS) sensors. In order to test sensory measurements during this period, GC-MS and microbial measurements were used. E-nose measurements show that the results are in accord with each other. This system can easily be made portable, occupying very little space.

FOOD AND COOKING AS COMIC RELIEF IN IRIS MURDOCH’S THE SEA, THE SEA

As a literary term, comic relief is the appearance of humorous and funny episodes or scenes in otherwise serious literary works. The aim of comic relief is to reduce the anxiety or distress that the audience feels as a result of the depiction of the painful and pitiful events or incidents. The joy and laughter that comic relief provides balance the intensity of the misery and sadness which are inherent in the narrative. Although comic relief is mostly associated with dramatic works, the scenes of food and cooking in Iris Murdoch’s 1978 Booker Prize winner novel The Sea, the Sea illustrate some proper examples of the term. Murdoch’s protagonist, the retired playwright and director Charles Arrowby, cheerfully cooks and eats whenever the mental anxiety rises to a critical level. Charles displays his enjoyment of preparing and having food so intensely that his happiness and thrill easily neutralise the uneasiness of the reader. This paper aims to illustrate how a protagonist’s delight at food and cooking serves as comic relief which reduces the intensity of the unease caused by a sad story.

THE PREVALENCE OF STRESS LEVEL AND BURNOUT AMONG PRACTICING VASCULAR SURGEONS IN PAKISTAN

Vascular surgeons in Pakistan confront challenging work conditions that can lead to a high incidence of burnout, a state of physical, emotional, and mental exhaustion caused by prolonged and intense stress. With the specialty still emerging in Pakistan. Objective: This study sought to quantify the prevalence of stress levels and burnout among these surgeons. Methods: Conducted by the Department of Vascular and Endovascular Surgery, Shaheed Mohtarma Benazir Bhutto Institute of Trauma, Karachi, this cross-sectional electronic survey included all practicing vascular surgeons. Non-probability convenience sampling was employed, and data were collected over two weeks using Google Forms. The Maslach Burnout Inventory—Human Services Survey for Medical Personnel was incorporated to measure burnout. Results: The survey found a significant presence of high-level burnout symptoms among vascular surgeons, particularly in emotional exhaustion and personal achievement domains, with lesser but still notable levels among orthopedic and general surgeons. A substantial number reported low job satisfaction and experienced family conflicts. Conclusion: The study highlights the critical levels of burnout among vascular surgeons in Pakistan, emphasizing the need for interventions to mitigate stress and improve job satisfaction.