Reverse Logistics and Competitive Advantage: The Mediating Effect of Operational Performance Among Manufacturing Firms in Kenya

Today globally, countries and manufacturing entities alike are concerned with environmental sustainability apart from economic gains. Implementation of reverse logistics programs has been contemplated as a feasible alternative to mitigate the negative environmental effects of manufacturing while gaining competitory position. Literature has also suggested that improved operational performance results in the achievement of competitiveness. However the question has been whether implementing reverse logistics creates comparative advantage that leads to gaining competitive advantage for manufacturing entities. Specifically, the study sought to determine the influence of operational performance on the relationship between reverse logistics and a firm’s competitive advantage. Using correlation cross-sectional survey design, primary data were collected from 175 Kenya Association of Manufacturers (KAM) registered firms through a semi-structured questionnaire. Covariance-based, Structural Equation Modeling (SEM) was used to analyze the data and test the study hypothesis. Results from the hypothesis tests revealed that operational performance significantly mediates the association linking reverse logistics and a firm’s competitive advantage. The study confirmed that when resources are mobilized uniquely, they create comparative advantage consequently leading to competitive advantage. The study recommends that implementation of reverse logistics should be guided by a process that requires identifying the uniqueness of resources the organization has and strategically utilizing these resources in a manner that builds comparative advantage. Policymakers within the manufacturing sector in Kenya should improve the regulatory framework to upscale application of reverse logistics strategies in a manner that improves operational performance. Based on the limitations of the study, areas for further research have been suggested

Efficient Exploration of Microstructure-Property Spaces via Active Learning

In materials design, supervised learning plays an important role for optimization and inverse modeling of microstructure-property relations. To successfully apply supervised learning models, it is essential to train them on suitable data. Here, suitable means that the data covers the microstructure and property space sufficiently and, especially for optimization and inverse modeling, that the property space is explored broadly. For virtual materials design, typically data is generated by numerical simulations, which implies that data pairs can be sampled on demand at arbitrary locations in microstructure space. However, exploring the space of properties remains challenging. To tackle this problem, interactive learning techniques known as active learning can be applied. The present work is the first that investigates the applicability of the active learning strategy query-by-committee for an efficient property space exploration. Furthermore, an extension to active learning strategies is described, which prevents from exploring regions with properties out of scope (i.e., properties that are physically not meaningful or not reachable by manufacturing processes)

Achieving energy balance with a high‐fat meal does not enhance skeletal muscle adaptation and impairs glycemic response in a sleep‐low training model

Training with low carbohydrate availability (LCHO) has shown to acutely enhance endurance training skeletal muscle response, but concomitant energy deficit (ED) in LCHO interventions has represented a confounding factor in past research. This study aimed at determining if achieving energy balance with high‐fat (EB‐HF) acutely enhances the adaptive response in LCHO compared to ED low‐fat (ED‐LF). In a crossover design, nine well‐trained males completed a ‘sleep‐low’ protocol: on day 1 they cycled to deplete muscle glycogen while reaching a set energy expenditure (30 kcal/kg of fat free mass (FFM)). Post‐exercise, low carbohydrate, protein‐matched meals completely (EB‐HF, 30 kcal/kg FFM) or partially (ED‐LF, 9 kcal/kg FFM) replaced the energy expended, with the majority of energy derived from fat in EB‐HF. In the morning of day 2, participants exercised fasted and skeletal muscle and blood samples were collected and a carbohydrate‐protein drink was ingested at 0.5h recovery. Muscle glycogen showed no treatment effect (P < 0.001) and decreased from 350 ±98 and 192 ±94 mmol/kg dry‐mass between rest and 0.5 h recovery. Phosphorylation status mTOR and AMPK pathway proteins showed only time effects. mRNA expression of p53 increased after exercise (P = 0.005) and was higher in ED‐LF at 3.5h compared to EB‐HF (P = 0.027). Plasma glucose and insulin AUC (P < 0.04) and peak values (P≤0.05) were higher in EB‐HF after the recovery drink. Achieving energy balance with a high‐fat meal in a ‘train‐low’ (‘sleep‐low’) model did not enhance markers of skeletal muscle adaptation and impaired glycemia in response to a recovery drink following training in the morning

Capacitating One Health in Eastern and Southern Africa

The world is facing unprecedented, inter-connected threats to the health of people, animals and the environment. Threats to health security originating from animals and ecosystems can best prevented and managed by One Health (OH) which recognizes the interconnection of people, animals, plants, and their shared environment. But attaining the OH dividend requires greater operationalization of OH science and harnessing the power of youth to solve the problems of the present and future. In line with this approach, this project aims to enhance national and sub-regional cross-sectoral collaboration between government entities with OH mandates and OH stakeholders across society, to equip educational and research institutes to train the next generation One Health workforce, and to increase the capacity of government and non-governmental stakeholders to identify and deliver OH solutions to key problems. To conceptualize the above objectives, we conducted an expert integrative review to identify OH capacity potential and gaps in eastern and southern Africa, to develop a four-year, eleven-country project to translate OH science to development impact. We identified neglected zoonoses, emerging zoonoses, food safety and livestock associated antimicrobial resistance as key OH domains, with soil health subsidiary. Multi-criteria processes identified 11 priority countries (Botswana, Ethiopia, Kenya, Malawi, Mozambique, Namibia, Rwanda, Tanzania, Uganda, Zambia, and Zimbabwe, of which four are deep dive) and four support areas (observatory, platforms, future workforce and field solutions). A consortium was developed of research and research translation institutes (three Africa-based) linked to multipliers in priority countries. Future OH capacity will be enhanced through strengthening educational institutions to deliver recognised OH courses. Delivery of solutions for a specific OH issue is planned for Ethiopia, Kenya, Mozambique and Zimbabwe, with the approach then used as a model for OH delivery. This initiative will ensure government entities capacitated in the development of evidence based One Health strategies and policies, education institutes strengthened in building OH capacity of the present and future workforce, and research institutes capacitated in identification, development, adoption and delivery of One Health solutions

Impact of caloric and dietary restriction regimens on markers of health and longevity in humans and animals: a summary of available findings

Considerable interest has been shown in the ability of caloric restriction (CR) to improve multiple parameters of health and to extend lifespan. CR is the reduction of caloric intake - typically by 20 - 40% of ad libitum consumption - while maintaining adequate nutrient intake. Several alternatives to CR exist. CR combined with exercise (CE) consists of both decreased caloric intake and increased caloric expenditure. Alternate-day fasting (ADF) consists of two interchanging days; one day, subjects may consume food ad libitum (sometimes equaling twice the normal intake); on the other day, food is reduced or withheld altogether. Dietary restriction (DR) - restriction of one or more components of intake (typically macronutrients) with minimal to no reduction in total caloric intake - is another alternative to CR. Many religions incorporate one or more forms of food restriction. The following religious fasting periods are featured in this review: 1) Islamic Ramadan; 2) the three principal fasting periods of Greek Orthodox Christianity (Nativity, Lent, and the Assumption); and 3) the Biblical-based Daniel Fast. This review provides a summary of the current state of knowledge related to CR and DR. A specific section is provided that illustrates related work pertaining to religious forms of food restriction. Where available, studies involving both humans and animals are presented. The review includes suggestions for future research pertaining to the topics of discussion

Transcriptional dynamics during cell wall removal and regeneration reveals key genes involved in cell wall development in rice

Efficient and cost-effective conversion of plant biomass to usable forms of energy requires a thorough understanding of cell wall biosynthesis, modification and degradation. To elucidate these processes, we assessed the expression dynamics during enzymatic removal and regeneration of rice cell walls in suspension cells over time. In total, 928 genes exhibited significant up-regulation during cell wall removal, whereas, 79 genes were up-regulated during cell wall regeneration. Both gene sets are enriched for kinases, transcription factors and genes predicted to be involved in cell wall-related functions. Integration of the gene expression datasets with a catalog of known and/or predicted biochemical pathways from rice, revealed metabolic and hormonal pathways involved in cell wall degradation and regeneration. Rice lines carrying Tos17 mutations in genes up-regulated during cell wall removal exhibit dwarf phenotypes. Many of the genes up-regulated during cell wall development are also up-regulated in response to infection and environmental perturbations indicating a coordinated response to diverse types of stress