This paper studies the relationship between Lean paradigms and the Physical Internet (PI). Lean thinking is a philosophy that allows one to obtain the right amount of the right items in the right place at the right time; it seeks to minimize waste and is flexible to change. In fact, applying Lean not only helps to reduce costs, but it also adds value and improves results across the supply chain. By using a value stream map, we can map the process from the supply chain to the customer, while trying not to add value activities. Such activities include excessive production, overstorage, waiting times poorly adjusted to needs, defects and rejects that require reprocessing, and, finally, unnecessary transport and movements. Storage, waiting times, and unnecessary transport and movements are at the core of the PI. A value stream map can also help to identify empty transport and unnecessary CO2 emissions. This study analyzes value stream mapping as a tool that can enable the objectives of the different Alliance for Logistics Innovation through Collaboration (ALICE) roadmaps for logistics innovation to be achieved, and can also allow PI principles to be reached on the established dates.
The Work Ability Index (WAI) is an instrument that measures work ability. The wide dispersion of the WAI internationally has led to its adaptation for use in different countries. This study aimed to evaluate the psychometric properties of the Spanish version of the WAI. A methodological design was used over an opportunistic sample of 233 workers in the aeronautical industry in Spain. Reliability was evaluated through internal consistency. Factorial validity, known groups, and convergent validity were tested. The Cronbach's alpha and item-total correlation indicated an adequate internal consistency. The confirmatory factor analysis, performed to evaluate the factorial validity, found adequate fit indices for a two-factor solution with a high correlation between the factors. Factor 1, “Subjectively estimated work ability and resources”, was composed of 3 subscales and factor 2, “Ill-health-related”, of 2 subscales. Subscales 4 and 6 had loading in both factors. Workers under 45 years of age obtained higher significant scores than older ones. Convergent validity was also evidenced since WAI was highly correlated with self-assessment of health status. The Spanish version of the WAI has shown evidence of reliability and validity in this study, supporting its use in individual and collective health surveillance by occupational health professionals. The factorial solution that was found has previously been reported in another international context. However, further research is needed to resolve the discrepancies detected in the role of some subscales between other national and international studies.
Esta interesante publicación compuesta por treinta y cuatro monográficas, recoge treinta de las treinta y tres ponencias que tuvieron lugar en las Jornadas celebradas en el Aula Universitaria de la UNED en Ferrol, los días 15 y 16 de octubre de 2015. Coordinadas por Manuel-Reyes García Hurtado, de la Universidad de La Coruña y Ofelia Rey Castelao, de la Universidad de Santiago de Compostela, organizaron como colofón de las mismas, el Coloquio de la Gobernanza de Puertos Atlánticos. Según los ...
Background: Measuring patient‐level complexity of nursing care in acute medical wards is essential for staffing and care planning, yet validated brief instruments in Spanish settings are scarce. The Sistema Informativo della Performance Infermieristica (SIPI) is a brief, intervention‐based index designed to quantify nursing‐care complexity on general wards. Aim: To translate SIPI into Spanish and evaluate its clinimetric properties in acute medical hospital wards. Methods: A cross‐sectional clinimetric instrument validation study. SIPI was translated into Spanish by two bilingual nurses, and a third bilingual nurse performed a back‐translation, which was reviewed by one of the original SIPI authors to ensure semantic equivalence. Construct validity was assessed in 212 hospitalised patients in four internal medicine wards. Convergent validity was examined using nurses’ perception of the complexity of care. Known‐groups validity was assessed by examining whether SIPI behaved as expected in relation to patient age and admission type. The optimal cut‐off was determined using a receiver operating characteristic analysis to evaluate discriminant validity. Results: The Spanish version was semantically equivalent to the original, with only minor wording adjustments. Convergent validity was supported: SIPI scores increased significantly across the four nurse‐rated complexity levels and were significantly higher in patients rated as high versus low complexity. In the ROC analysis, SIPI discriminated high‐ from low‐complexity patients with excellent accuracy (AUC = 0.94; 95% CI 0.91–0.97); the optimal cut‐off of 53.50 yielded 88.4% sensitivity, 86.0% specificity, 87.6% positive predictive value and 86.9% negative predictive value. Known‐groups validity was supported, as patients classified as high complexity by SIPI were significantly older than those classified as low complexity, and SIPI scores were significantly higher in urgent versus scheduled admissions. Implications for Nursing Management: The Spanish version of SIPI offers nurse managers a brief, patient‐level measure of nursing‐care complexity that could complement existing staffing and workload systems to support early identification of high‐complexity patients and more equitable, transparent resource allocation, pending confirmation in multicentre, outcome‐based studies. Conclusion: The Spanish version of SIPI showed adequate clinimetric properties, similar to the original Italian version, supporting its use as a brief instrument for measuring the patient‐level complexity of nursing care in acute medical hospital wards.