58 research outputs found

    Supply chain strategies in an era of natural resource scarcity

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    Purpose: The purpose of this paper is to explore the implications of natural resource scarcity (NRS) for companies’ supply chain strategies. Design/methodology/approach: Drawing on the resource dependence theory (RDT), a conceptual model is developed and validated through the means of exploratory research. The empirical work includes the assessment of qualitative data collected via 22 interviews representing six large multinational companies from the manufacturing sector. Findings: When the resources are scarce and vitally important, companies use buffering strategies. Buffering and bridging strategies are preferred when there are a few alternative suppliers for the specific resource and when there is limited access to scarce natural resources. Research limitations/implications: The research focuses on large multinational manufacturing companies so results may not be generalised to other sectors and to small- and medium-sized firms. Future research needs to examine the implications of NRS for organisational performance. Practical implications: This research provides direction to manufacturing companies for adopting the best supply chain strategy to cope with NRS. Originality/value: This paper adds to the body of knowledge by providing new data and empirical insights into the issue of NRS in supply chains. The RDT has not been previously employed in this context. Past studies are mainly conceptual and, thus, the value of this paper comes from using a qualitative approach on gaining in-depth insights into supply chain-related NRS strategies and its antecedents

    Global urban environmental change drives adaptation in white clover

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    Urbanization transforms environments in ways that alter biological evolution. We examined whether urban environmental change drives parallel evolution by sampling 110,019 white clover plants from 6169 populations in 160 cities globally. Plants were assayed for a Mendelian antiherbivore defense that also affects tolerance to abiotic stressors. Urban-rural gradients were associated with the evolution of clines in defense in 47% of cities throughout the world. Variation in the strength of clines was explained by environmental changes in drought stress and vegetation cover that varied among cities. Sequencing 2074 genomes from 26 cities revealed that the evolution of urban-rural clines was best explained by adaptive evolution, but the degree of parallel adaptation varied among cities. Our results demonstrate that urbanization leads to adaptation at a global scale

    Effect of angiotensin-converting enzyme inhibitor and angiotensin receptor blocker initiation on organ support-free days in patients hospitalized with COVID-19

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    IMPORTANCE Overactivation of the renin-angiotensin system (RAS) may contribute to poor clinical outcomes in patients with COVID-19. Objective To determine whether angiotensin-converting enzyme (ACE) inhibitor or angiotensin receptor blocker (ARB) initiation improves outcomes in patients hospitalized for COVID-19. DESIGN, SETTING, AND PARTICIPANTS In an ongoing, adaptive platform randomized clinical trial, 721 critically ill and 58 non–critically ill hospitalized adults were randomized to receive an RAS inhibitor or control between March 16, 2021, and February 25, 2022, at 69 sites in 7 countries (final follow-up on June 1, 2022). INTERVENTIONS Patients were randomized to receive open-label initiation of an ACE inhibitor (n = 257), ARB (n = 248), ARB in combination with DMX-200 (a chemokine receptor-2 inhibitor; n = 10), or no RAS inhibitor (control; n = 264) for up to 10 days. MAIN OUTCOMES AND MEASURES The primary outcome was organ support–free days, a composite of hospital survival and days alive without cardiovascular or respiratory organ support through 21 days. The primary analysis was a bayesian cumulative logistic model. Odds ratios (ORs) greater than 1 represent improved outcomes. RESULTS On February 25, 2022, enrollment was discontinued due to safety concerns. Among 679 critically ill patients with available primary outcome data, the median age was 56 years and 239 participants (35.2%) were women. Median (IQR) organ support–free days among critically ill patients was 10 (–1 to 16) in the ACE inhibitor group (n = 231), 8 (–1 to 17) in the ARB group (n = 217), and 12 (0 to 17) in the control group (n = 231) (median adjusted odds ratios of 0.77 [95% bayesian credible interval, 0.58-1.06] for improvement for ACE inhibitor and 0.76 [95% credible interval, 0.56-1.05] for ARB compared with control). The posterior probabilities that ACE inhibitors and ARBs worsened organ support–free days compared with control were 94.9% and 95.4%, respectively. Hospital survival occurred in 166 of 231 critically ill participants (71.9%) in the ACE inhibitor group, 152 of 217 (70.0%) in the ARB group, and 182 of 231 (78.8%) in the control group (posterior probabilities that ACE inhibitor and ARB worsened hospital survival compared with control were 95.3% and 98.1%, respectively). CONCLUSIONS AND RELEVANCE In this trial, among critically ill adults with COVID-19, initiation of an ACE inhibitor or ARB did not improve, and likely worsened, clinical outcomes. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT0273570

    Integrating external knowledge: Building a supply chain resource orchestration framework

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    Innovation sourcing is the acquisition and integration, rather than internal development, of critical knowledge from external providers. This key strategy has emerged as a necessity for survival in many markets. Consequently, sourcing processes are applied to complement internal design capabilities with external knowledge and ultimately improve innovation performance. Firms use external knowledge to enhance products and services, gain market share, and improve profits. The literature regarding the phenomenon of innovation sourcing is largely fragmented, limiting the theoretical advancement in the field. This article presents a systematic literature review that synthesizes the body of knowledge regarding innovation sourcing and derives a conceptualization of how innovation sourcing and its main dimensions are linked to innovation performance. A conceptual model, key dimensions, and an agenda for future research are significant results of this research

    Purchasing orchestration practices – Introducing a purchasing-innovation framework

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    This research investigates the purchasing role in enhancing an organization\u27s innovation performance. Taking a purchasing perspective, this research introduces a new purchasing-innovation framework and specific purchasing orchestration (PO) practices related to the acquisition, integration, re-configuration, and commercialization of critical resources to enhance innovation performance. A theory elaboration methodology is applied to broaden the scope of resource orchestration theory (ROT) and introduce PO practices as an essential enabler of innovation. Qualitative interviews with managers from different industries enrich the theory elaboration process. This research contributes to theory by developing the concept of PO and enhancing the theoretical understanding of its meaning. Based on theory and empirical data, this research elucidates the PO practices of resource structuring, bundling, and leveraging support. The purchasing innovation framework explains how open-mindedness and technological uncertainty influence purchasing orchestration practices and innovation performance. Purchasing managers benefit from this research by learning to identify and address potential PO capability gaps and take a holistic perspective on resource management, looking both upstream and downstream in the supply chain

    Managing the performance of outsourced customer contact centers

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    This research focuses specifically on customer contact services that have been outsourced to external suppliers. The performance of the contact services supplier directly affects end customer satisfaction which underlines the need for appropriate management of customer contacts and consideration of the end customer's perspective in designing appropriate key performance indicators (KPIs). This research draws on various streams of literature including services purchasing, performance management and service quality to derive propositions on how to manage customer contact services suppliers. These propositions are subsequently investigated in an in-depth case study. The results of the case study show that managing customer contact services suppliers on effectiveness rather than efficiency benefits the overall performance of the supplier. This research shows that quality improvements in both process and service delivery ultimately lead to decreased costs. These improvements will furthermore enhance customer satisfaction and improve buying company performance. The current trend in selecting and managing suppliers for outsourced business processes is on efficiency improvements and cost savings. However, this research shows that this type of focus can actually decrease customer satisfaction and increase costs
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