Being an ethical leader during the apocalypse: Lessons from the walking dead to face the COVID-19 crisis.

This article draws on Gareth Morgan's theory of organizational metaphors. Using imaginization, this research examines practices of ethical leadership during a crisis, using The Walking Dead television series as a reference. The Walking Dead offers an artistic representation of different leadership styles, with business organizations likened to groups of survivors. Its post-apocalyptic setting offers something of an analogy to the COVID-19 crisis. Each firm's struggle for survival in the face of external threats is paralleled with each community's struggle to protect members' lives, preserve resources, and pursue development. The practices of the leaders in the program are compared to those of the leaders of firms such as P&G, Boeing, GM, Renault-Nissan, IBM, BP, GE, Berkshire Hathaway, Google, Apple, Facebook, Amazon, Microsoft, Ali Baba, Netflix, Airbnb, Uber, and SpaceX. This paper illustrates why ethical leadership goes far beyond charisma and competencies to involve deep motivations and sincere emotions and why it is accessible to everyone through a process of learning and transformation. The study shows the need to adapt leadership style to context. Good leaders know when to step back, meditate, and be lucid. They balance consultation and initiative. They do not fear other leaders and mentor new ones.

Archaeological assessment reveals Earth's early transformation through land use.

Environmentally transformative human use of land accelerated with the emergence of agriculture, but the extent, trajectory, and implications of these early changes are not well understood. An empirical global assessment of land use from 10,000 years before the present (yr B.P.) to 1850 CE reveals a planet largely transformed by hunter-gatherers, farmers, and pastoralists by 3000 years ago, considerably earlier than the dates in the land-use reconstructions commonly used by Earth scientists. Synthesis of knowledge contributed by more than 250 archaeologists highlighted gaps in archaeological expertise and data quality, which peaked for 2000 yr B.P. and in traditionally studied and wealthier regions. Archaeological reconstruction of global land-use history illuminates the deep roots of Earth's transformation and challenges the emerging Anthropocene paradigm that large-scale anthropogenic global environmental change is mostly a recent phenomenon.

Correction: A Global Model for Bankruptcy Prediction.

[This corrects the article DOI: 10.1371/journal.pone.0166693.].

A Global Model for Bankruptcy Prediction.

The recent world financial crisis has increased the number of bankruptcies in numerous countries and has resulted in a new area of research which responds to the need to predict this phenomenon, not only at the level of individual countries, but also at a global level, offering explanations of the common characteristics shared by the affected companies. Nevertheless, few studies focus on the prediction of bankruptcies globally. In order to compensate for this lack of empirical literature, this study has used a methodological framework of logistic regression to construct predictive bankruptcy models for Asia, Europe and America, and other global models for the whole world. The objective is to construct a global model with a high capacity for predicting bankruptcy in any region of the world. The results obtained have allowed us to confirm the superiority of the global model in comparison to regional models over periods of up to three years prior to bankruptcy.

Volatiles emitted by Carya illinoinensis (Wang.) K. Koch as a prelude for semiochemical investigations to focus on Acrobasis nuxvorella Nuenzig (Lepidoptera: Pyralidae).

BACKGROUND: Plant volatiles have complex intra- and interspecific effects in the environment that include plant/herbivore interactions. Identifying the quantity and quality of volatiles produced by a plant is needed to aid the process of determining which chemicals are exerting what effects and then examining whether these effects can be manipulated to benefit society. The qualitative characterization of volatile compounds emitted by pecan, Carya illinoinensis (Wang.) K. Koch, was begun in order to establish a database for investigating how these volatiles affect Acrobasis nuxvorella Nuenzig, a monophagous pest of pecan. Headspace solid-phase microextraction combined with gas chromatography-mass spectrometry was used for the analysis of the volatile constituents of pecan during three phenological stages (dormant buds, intact new shoot growth and intact nutlets) of the Western Schley and Wichita cultivars. RESULTS: About 111 distinct compounds were identified from the two cultivars, accounting for ∼99% of the headspace volatiles. The chromatographic profiles of both varieties revealed variations in the volatile composition and proportion between cultivars, with a predominance of terpene hydrocarbons, of the sesquiterpenes class, as well as monoterpenes. CONCLUSION: The significantly higher responsiveness recorded for the larvae of A. nuxvorella to C. illinoinensis shoots indicates that the larvae may be activated by terpenes emanating from the new shoot growth. This is the first study that has examined volatiles of pecan in Mexico.

Claritromicina en el tratamiento ambulatorio de pacientes con exacerbación bacteriana aguda de bronquitis crónica

Este estudio clínico fue diseñado para evaluar la eficacia y seguridad del antibiótico claritomicina en el tratamiento de la exacerbación aguda de bronquitis crónica. Se tomaron 40 pacientes, 28 hombres y 12 mujeres, con un rango de edad entre 22 y 74 años. El diagnóstico se fundamentó tanto en la clínica como en la presencia de cultivos positivos de esputo. Los dos patógenos predominantes fueron N.catarrhalis (N=39) y S. pneumonie. Los pacientes recibieron 250 mg de claritromicina por vía oral cada 12 horas, durante 10 días. Se realizaron controles clínicos y bacteriológicos durante el tratemiento, y dos días después de finalizado. Todos los paciente mostraron mejoría clínica significativa en los distintos parámetros evaluados, desde su primer control a los 3 y 5 días de tratamiento, en el que solamente 5 pacientes mostraron cultivo de esputo positivo, 2 de ellos para S.pneumonie y los otros 3 para N.catarrhalis. Todos los cultivos fueron negativos al segundo control, en los días 8 y 10 de tratemiento. En el control postratamiento, 26 pacientes estaban curados y los 14 restantes mostraron una franca mejoría. La medicación fué muy bien tolerada. Se concluyo que la claritriomicina es un antibiótico eficaz para el manejo empírico de las exacerbaciones agudas de la bronquitis crónica.

Linfoma primario del pulmón asociado asíndrome de sjögren primario

Se presneta un caso de Síndrome de Sjögren primario de aproximadamente 10 años de evolución por historia clínica, que se confirma por estudio anatomopatológico de las glándulas salivales menores, y el desarrollo de un linfoma primario de pulmón demostrado por estudios anatomopatológicos convencionales. Desde el punto de vista histoquímico se trata de una proliferación maligna de células B, lo que confirma su origen en el tejido linfoide asociado a las mucosas (MALT), cuya localización más frecuente es en estómago, pero también puede verse en el pulmón, dependiente del tejido linfoide asociado a la mucosa bronquial (BALT)

Epulis fisurado

Se realiza un breve recuento de los aspectos clínicos, etiológicos histopatológicos y terapéuticos del épulis fisurado, proponiéndose una técnica quirúrgica moderna y ventajosa para la exéresis de estas lesiones(AU)