Local Supply Research Articles

Segmental vitiligo distribution follows the underlying arterial blood supply territory: a hypothesis based on anatomo-clinical, pathological and physio-pathological studies.

Segmental vitiligo (SV) is a subset of vitiligo typically characterized by its unilateral distribution. The pathogenesis of SV remains unclear, and until now the two main patterns proposed for SV have lacked biological support. This calls for a new approach. Use data obtained from anatomo-clinical, pathological, and physio-pathological studies to formulate a new hypothesis on segmental vitiligo distribution and its pathogenesis. Using transparent templates of local arterial blood supply, we evaluated anatomical correspondence (AC) in 140 SV lesions according to the number of SV lesions that fit within the corresponding arterial blood-supply areas. SV lesions were graded as 1 (moderate: AC < 50%), 2 (good: AC > 50%), or 3 (excellent: AC of all lesions). To support this anatomical investigation, we searched for complementary assessments according to the activity of SV lesions. Arterial and periarterial network impairment and inflammatory infiltration were histologically studied using nerve growth factor (NGF) and CD4 and CD8 monoclonal antibodies. Increased blood flow of the underlying arteries was also investigated using thermography and ultrasonography. We recruited 140 patients with a sex ratio of 0.8 and mean age 26.13 years. Localizations: head and neck 84.28%; trunk 6.42%; upper limb 5%; genital areas 2.14%; lower limb 1.42%. The AC of each SV lesion with the underlying artery blood supply territory was rated as 72% excellent; 16% good; and 12% moderate. Histologically (40 patients), we found some periarterial network impairments. Thermal asymmetry was significantly associated with active SV (p < 0.001). We hypothesized that SV distribution corresponds to the underlying artery blood-supply territory.

‘Road runners’ and Fanta: Intersectional cultural food in/security among Zimbabwean migrants living in UK cities

The incidence of food insecurity among migrant and diasporic communities living in rich global North cities is growing. A key dimension of this is the absence of culturally appropriate food which is integral to both feeding and nourishing mobile bodies. In this paper, we deploy an intersectional approach to cultural food in/security to explore the foodscapes of Zimbabwean communities living in British cities. We unpack how and why food cultures are critical in shaping migrant experiences of food in/security and the diversification of food cultures over time and place and mediated by intersectional subjectivities. We map local, regional and transnational food supply chains as migrants seek to redress issues of access and availability to source foods familiar to them to maintain the cultural significance of food and food practices within families and diaspora communities.

Regional Shopping Objectives in British Grocery Retail Transactions Using Segmented Topic Models

ABSTRACTUnderstanding the customer behaviours behind transactional data has high commercial value in the grocery retail industry. Customers generate millions of transactions every day, choosing and buying products to satisfy specific shopping needs. Product availability may vary geographically due to local demand and local supply, thus driving the importance of analysing transactions within their corresponding store and regional context. Topic models provide a powerful tool in the analysis of transactional data, identifying topics that display frequently‐bought‐together products and summarising transactions as mixtures of topics. We use the segmented topic model (STM) to capture customer behaviours that are nested within stores. STM not only provides topics and transaction summaries but also topical summaries at the store level that can be used to identify regional topics. We summarise the posterior distribution of STM by post‐processing multiple posterior samples and selecting semantic modes represented as recurrent topics, and employ Gaussian process regression to model topic prevalence across British territory while accounting for spatial autocorrelation. We implement our methods on a dataset of transactional data from a major UK grocery retailer and demonstrate that shopping behaviours may vary regionally and nearby stores tend to exhibit similar regional demand.

Seeking a multi‐dimensional approach to understand agricultural commodity expansion in Asian tropics

AbstractAgricultural commodity expansion into natural and semi‐natural ecosystems in Asia is a multi‐dimensional sustainability challenge posing a threat to natural and human capital. At the symposium pertaining to agricultural commodity landscapes organized at the 59th meeting of the Association for Tropical Biology and Conservation, we aimed to identify key aspects that require further attention to address the negative impacts of commodity‐driven agricultural expansion in the Asian tropics. Using a combination of insights obtained both from participants' research and those that developed organically in the symposium, we identified five key themes: (1) Robust land use suitability assessments to determine the viability of agricultural expansion or other competing demands on productive land in given landscapes; (2) the need for plot‐level studies of soil biodiversity and ecological functions for commodity crops; (3) Irrigation for commodity crops with blue and green water and evaluating co‐dependent drivers and outcomes; (4) an improved understanding of local producer motivations and supply chains and (5) the analysis of co‐benefits, trade‐offs and synergies in agro‐commodity systems. These themes include the various steps involved in agricultural commodity expansion, right from land selection and crop patterns to aspects pertaining to the post‐harvest value chain. These themes are inter‐connected and span across multiple local and regional spatial scales in tropical Asia but hold relevance to agricultural landscapes elsewhere too. Immediate and sustained attention on these themes would secure multiple goals of sustainable land use, biodiversity conservation, climate change mitigation and human well‐being.

Enhancing Capacity to Comply with Sustainability Standards in the Milk Value Chain in East Africa: Challenges, Prospects, and Policy Implications

This paper addresses the need to contextualize sustainability standards and supply chain management in dairy value chains in East Africa, where milk perishability and limited cold storage significantly impact the industry. The study highlights the importance of localizing these standards, given the greater dependence on local supply chains following the COVID-19 pandemic. Drawing on milk standards literature and various interventions aimed at promoting systemic change, this review analyses the capacity of marginalized stakeholders in East Africa’s dairy value chains to meet sustainability standards, focusing particularly on the social dimensions of these standards. The findings indicate that compliance with sustainability and safety standards is predominantly restricted to formal dairy networks, which process less than 20 percent of milk produced in the region. Most milk sales occur through informal or unorganized markets, which face significant barriers to meeting international sustainability benchmarks. The review advocates for the alignment of international sustainability standards with the unique conditions of the informal markets dominating East Africa’s dairy sector. It suggests enhancing stakeholder capabilities and addressing regulatory barriers as necessary steps for improving compliance with these standards. The co-operative model is highlighted as a promising approach to integrating farmers and marginalized value chain actors into the formal sector, thereby facilitating incremental adoption of sustainability standards. The paper identifies strategic entry points for organizing and upgrading the supply chain, including capacity building, certification, and catalyzing farmer groups to compliance and productivity.

Analysis of the spatio-temporal distribution of Chinese professional football clubs and influential factors based on empirical evidence of clubs

The frequent relocation of professional football clubs is a phenomenon unique to Chinese professional football, which has long attracted extensive attention from policy makers and scholars. Using data on spatial geography and competitive levels between 1994 and 2021, this research explores the spatial distribution and migration characteristics of top professional football clubs in China, in which GIS spatial analysis and exploratory spatial data analysis (ESDA) were used to analyze the influence of the regional economic, demographic, and developmental levels of the sports industry and institutional supply on the distribution and migration of clubs. The results indicate the following: (1) the overall spatial distribution of professional football clubs in China shows the pattern of “more in the east and less in the west”, and the degree of club concentration gradually increases over time; (2) the migration frequency and downward migration of professional football clubs in China gradually decreased during the period of C League and CSL, and the overall situation tends to be stable; and (3) in the early stages of development of professional leagues, changes in ownership and local policy supply had a significant impact on the distribution and migration of professional clubs. As time progressed, the top-down design of institutional arrangements changed, and the regional economic, demographic, and developmental levels of the sports industry gradually became the essential determinants of the distribution and migration of professional football clubs. In the future, Chinese professional football clubs should focus on rationalizing the advantages of the regional economy, demography, and sports industry as well as reducing their reliance on short-term resources, such as corporate investment and policy benefits.

Effective stakeholder governance in circular economy: Insights from Italian companies

Notwithstanding a growing scholarly interest in stakeholder governance, the issue of how stakeholder governance can motivate a firm's stakeholders to cooperate to the transition to circular economy (CE) is still underdeveloped. This study intends to contribute to advance knowledge in this field by investigating the comparative effectiveness of three stakeholder governance forms – hub-and-spoke, lead role, and shared governance – to motivate stakeholders of a focal company (FC) to cooperate to the development and implementation of circular business models.Drawing on three case studies of Italian companies engaged in the transition to CE, we propose a contingent model of CE stakeholder governance. We found that the most effective stakeholder governance form at FC level depends on CE boundaries, the attitude of market forces to incentivise stakeholder cooperation to the CE, and the owners’ identity of the FC. We also found that a FC can adopt different stakeholder governance forms for the diverse CE-enhancing projects it has undertaken, appropriately tailoring the governance arrangements to the nature of activities of each project and to the value, uniqueness, and complementarities of the resources held by the stakeholders involved.This papers makes both theoretical and practical contributions. From a theoretical point of view, it advances knowledge at the intersection of stakeholder theory and governance of the CE in two main ways: first, by pointing out that the transition to the CE requires a shift from a perspective of a company responsibility to its stakeholders to that of stakeholders’ responsibility to a company, a supply chain or a local community they belong to. Second, by proposing some conditions under which shared forms of stakeholder governance are likely to foster this transition. From a pratical perspective, this paper suggests how stakeholder governance can be a tool to achieve CE targets at local community, industry, supply chain or individual firm level.

Defining Risk: Hepatitis A Virus in Philippine Shellfish (Oyster and Mussels)

The hepatitis A virus (HAV) endemicity in the Philippines ranges from moderate to high. Despite this, health risks related to local seafood consumption are associated with red tide or mass fish kill. However, government agencies should consider the safety of local shellfish and culture sites to HAV. This article examines the current trends relevant to the presence of HAV along the local shellfish supply chain – including production levels, microbial concentration, consumer behavior, and food safety regulations. Despite the susceptibility of local shellfish to HAV, the study identified crucial data gaps: [1] reliance on bacterial indicators, [2] absence of monitoring records for HAV concentration in local shellfish products and culturing sites, and [3] limited studies regarding the effect of local cooking practices on HAV inactivation. The synthesis of this analysis will guide the national food safety risk managers in addressing the identified data gaps to facilitate a full-blown food risk analysis of HAV in Philippine shellfish.

INVESTIGATING THE KEY LIMITATIONS AND IMPROVEMENTS INFLUENCING THE COMPETITIVE SUCCESS OF SOUTH AFRICA’S ORANGER EXPORTERS.

The objective of identifying constraining factors is to reveal that the key obstacles affecting the competitiveness of South Africa's domestic orange industry include issues such as the "quality of unskilled labor," "trust in the honesty of politicians," "electricity suppliers," "health," "South Africa’s land reform policy," "South Africa’s BEE policy," and "crime." Additionally, challenges related to the lack of quality infrastructure, bilateral agreements with trading countries, and poor performance of ports relative to their global counterparts have been identified. The constraining factors were ranked, with the top issues aligning closely with the industry's current challenges. In contrast, enhancing factors play a crucial role in boosting industry competitiveness in both domestic and international markets. The key elements contributing positively include the availability of unskilled labor, local input suppliers, scientific research institutions, technological quality, the cost of unskilled labor, soil conditions, and the sustainability of local input suppliers. Attention to maintaining and improving these factors is crucial for the sustained competitiveness of the South African orange sector.

COVID-19 School Closures Were Associated With A Decline In Employment For Female Nurses With Young Children.

COVID-19-related school closures may have had unintended consequences affecting the ability of health professionals with school-age children to work-particularly female professionals, who often have disproportionate child care responsibilities. We combined labor-force participation data from the Current Population Survey with measures of school closures based on cell phone mobility data to examine the association between local school closures and labor supply among female nurses during the COVID-19 pandemic. During the six months after large-scale closure of schools at the end of the 2019-20 school year (March-August2020), among counties with above-median school closure rates, the employment rate of female nurses with young children declined by 12.5percentage points versus the rate during the prior four months (November2019-February2020); the change in the employment rate in below-median counties was not statistically significant. No statistically significant changes were observed among female nurses who had only older children or among male nurses. During public health emergencies, policies should consider how disruptions to schooling may affect the labor supply of health care professionals. Strategies might include direct provision of child care by health care facilities, subsidies and other aid to child care centers, or subsidies to health care workers for affordable child care.

TRANSFORMING BUSINESS LANDSCAPES: STRATEGIES FOR SUSTAINABLE AND INNOVATIVE GROWTH IN THAILAND

This article explores the innovative business models and strategies that Thai companies are embracing to enhance their competitiveness, foster sustainability, and adapt to the evolving market conditions. By drawing on the work of prominent scholars, the article provides a comprehensive understanding of the transformative processes shaping the future of Thai businesses. Key findings include the adoption of platform-based models, circular economy models, servitization models, collaborative and sharing-based models, and localized and resilient supply chain models. The article also highlights the synergistic framework that integrates digital transformation, sustainability, entrepreneurship, and supply chain resilience, driving sustainable and innovative growth for Thai businesses.

Effect of Local Heat Supply into Supersonic Incoming Flow Ahead of Thin Body with Disk on Intensity of Weak Far-Field Shock Waves

Effect of Local Heat Supply into Supersonic Incoming Flow Ahead of Thin Body with Disk on Intensity of Weak Far-Field Shock Waves

Securing Survivability for Urban Poor: A Review on Food Accessibility and Food Affordability

There are multifaceted challenges, including poverty, international and domestic food supply disruptions, labor shortages, global economic crises, natural disasters, and burgeoning global population, precipitating a formidable food security predicament. This predicament manifests in the form of compromised affordability, unreliability in accessibility, and inadequacy of available nutritious sustenance. This study is part of a larger study exploring affordable food supply via accessibility, particularly for the urban poor in Malaysia. The purpose of this study is to analyze how policymakers could improve food affordability via food accessibility for the urban poor. This study reports a desktop survey using the systematic literature synthesis process based on the keywords "urban poor", "food accessibility", and "food affordability". The results found that urban poor could improve food security by utilizing their local supply chain (LSC) with a selective coping strategy (CS). The results led to the developing a proposed Urban Poor Secured Survivability Model. This study is significant because the results identified the limitations among the urban poor in accessing nutrient-rich, safe, affordable and quality local food. The benefits of this study include guiding potential local supply chain development with local food resources. It is recommended that future studies develop a local supply chain for urban poor food security and propose a management system to enable its successful implementation.

Empowering Widowed Women with Sustainable Food Security in Tunyai Location, Tharaka Sub-County, Tharaka Nithi County, Kenya: A Qualitative Analysis of Their Roles, Challenges, and Resilience

Food security, a fundamental global concern, is intrinsically linked to the pivotal roles, women play in agricultural and food production. This qualitative research, conducted in Tunyai Location, Tharaka Sub-County, Tharaka Nithi County, Kenya, delves into the significant contributions of widowed women to food security by exploring their roles in agricultural and food production. The research aims to understand the experiences, challenges, and strategies of widowed women in enhancing the local food supply. Using a purposive sampling method, 50 widowed women actively engaged in agriculture were selected for participation in Key Informant Interviews. NVivo software facilitated the data analysis, enabling systematic exploration and thematic identification of patterns, challenges, and strategies employed by these women. The study findings underscore the profound contributions of widowed women to food security, with 56% actively engaged in agricultural activities. These women represent a cornerstone in sustaining local food security through diverse roles encompassing crop cultivation, livestock management, and food processing. Furthermore, the research underscores the need to address the 44% of widowed women not actively involved, emphasizing potential gender disparities and barriers. In conclusion, this study highlights the integral role of women in enhancing food security and the imperative to address gender-related challenges to ensure a resilient and sustainable local food supply in Tunyai Location.

A Hydrological and Hydrochemical Study of the Gudiyalchay River: Understanding Groundwater–River Interactions

The Gudiyalchay River plays a crucial role in the environment and human activities of the Guba area in north-eastern Azerbaijan, supporting agriculture and the local water supply. Despite its significance, the river has received little scientific attention. The groundwater beneath the Gudiyalchay riverbeds, a vital source of drinking water and the second primary source of river recharge after snowmelt, remains insufficiently studied, with most monitoring data being outdated. With climate change intensifying, such research is critical to mitigating potential water risks. In this work, all available geological, hydrogeological, climatic, and hydrochemical data were collected to characterize the study area and analyze the seasonal fluctuations in river flow and total dissolved solid (TDS) values, with a focus on the interactions between the river and groundwater at the Khinaliq, Giriz, and Kupchal flow stations. The analysis shows that both river and groundwater TDS values are within acceptable drinking water limits, but continuous data collection is important to confirm this. Flow rate analysis and a literature review revealed that variations in flow rate are linked to seasonal changes, with the flow rate near the Giriz station indicating potential groundwater influence. Based on the literature review and analysis, a simplified hydrogeological diagram is created to provide a clearer understanding of the interactions between the river and groundwater systems.

Development path for China's mega-large urban agglomerations based on the water-energy-food nexus

The Beijing-Tianjin-Hebei (BTH) mega-large urban agglomeration of China (CMUA) has significantly contributed to Chinese socioeconomic development. However, it faces severe shortages in the supply to meet the increasing demand of water, energy, and food resources (WEF). In order to safeguard the resource security of CMUA-BTH and the synergistic development of cities, and to compensate for the lack of dynamic analysis between urban agglomerations and WEF in previous studies. In this study, a coupled CMUA-WEF simulation model is developed based on the system dynamics approach. The model not only studies the three elements of WEF, supply and demand, but also conducts a comparative analysis of the three regions of BTH, and designs a total of four scenarios based on the possibility of future development, so as to facilitate the depiction of the trend of the WEF supply and demand system under different scenarios, and to provide theoretical basis for the government to formulate effective policy. The results show that: (1) Regarding demand, the aggregate demand for energy, food and water in the BTH will increase by about 3–5 times, 3 times, and 2 times, respectively, from 2000 to 2050, among which the total demand for energy will increase most significantly. In contrast, the variation of local resource supply side is small, which leads to the deterioration of resource security. (2) The risk of water shortage is the greatest in resource security, with less than 30% self-sufficiency in water security in all three regions. (3) Scenario analysis for CMUA-BTH indicates that “choking flow” (S3) yields more pronounced effects compared to “open source” (S2), and therefore adhering to the reduction of food waste, promoting energy-saving technologies, and intensifying water-saving measures can effectively reduce the risk of water shortages in the three regions. Optimal resource security in S4 increases Hebei's water pressure by 1.5%, alleviates Beijing's pressure by 7.3%, and the implementation of the Xiongan New Area and the new energy development policy can help realize the synergistic development of BTH and the inter-regional linkage.

Impacts of 10–30-day atmospheric oscillation on persistent compound heatwaves in the Yangtze River Delta with implications for local electricity demand and supply

Impacts of 10–30-day atmospheric oscillation on persistent compound heatwaves in the Yangtze River Delta with implications for local electricity demand and supply

Robots and immigration

Changes in local labor supply may affect robot adoption by firms. We test this hypothesis by exploiting an increase in the number of workers and a change in the local workforce composition induced by exogenous immigration into Danish municipalities. Using the Danish employer-employee matched dataset over the period 1995-2019, we show in a shift-share regression that a larger share of non-Western immigrants in a municipality leads to fewer robot adoptions at the firm-level. Several demographic characteristics, including prime age and low skill level, make immigrant workers particularly substitutable for robots. As many advanced economies are facing labor shortages, this paper sheds light on the future of robotization.

Quantifying water evaporation from large reservoirs: Implications for water management in water-stressed regions

Dam reservoirs are at the core of local water storage and supply, especially in water-stressed regions of the world with acute water shortage problems. However, evaporative losses from these reservoirs and their storage efficiency are often overlooked in water budgeting. We offer a mechanistic approach that combines physically-based modeling with remote sensing information of reservoir characteristics to reliably predict evaporative losses from dam reservoirs. The developed framework is used to predict evaporative water losses from potential dam reservoirs in different basins worldwide. We apply this framework to 10 of the largest dam reservoirs in the world's water-stressed regions to quantify evaporative water losses. Our analysis, spanning from 2000 to 2020, reveals considerable variations in annual evaporation rates in the reservoirs located in water-deprived regions exceeding 3200 mm/year during the study period with the total evaporative loss reaching 26.5 km3/year. The evaporative water loss accounts up to 15.8% of the storage capacity in one of the dam reservoirs, posing significant challenges for water allocation and conservation strategies, with notable economic and environmental consequences in regions already suffering from water scarcity.

How do wheat roots improve shoot growth under different local phosphorus supply conditions?

How do wheat roots improve shoot growth under different local phosphorus supply conditions?