Theories of managerial action and their impact on the conceptualisation of executive careers.

In this paper I outline one of the developments in the social sciences and macro organizational theory that could be of special profit for academic work on careers. I argue that a theory of action perspective is timely because its assumptions fit extremely well with the heterogeneity and lability of today’s structures and the plurality and unpredictability they bring to careers. I suggest there are two basic potential contributions of theories of action to the field of careers. First, they endorse the relevance of the shift in the basic image of managers’ careers, from the analogy of an ascendant trajectory of positions, to that of an idiosyncratic sequence of experiences loosely related to an organisational architecture. Second, they reinforce Weick’s arguments (1996) that careers cannot be conceived of merely as a dependent variable, as just “following” structures. Both contributions spring from a notion of management work in theories of action as essentially local, tactical, and pragmatic, with enacting or social constructionist effects on structure and organizations.executive careers; structure; organizations;

Haute couture or pret-a-porter: Creating and diffusing management practices through the popular press

Management fads are increasingly a hot topic within Organization Theory. Recent articles have described the production process of fads, the role of «ideological» waves in explaining their emergence, and the development of management rhetoric supporting the fads. Despite this growing interest, management fads are seen as an outcome of the actions of Universities, business schools, and consulting firms in producing formal management knowledge; the role of the popular press, meanwhile, remains largely unexplored. Our paper aims to fill this gap by exploring the role of the popular press in producing and legitimating management fads. We argue that the popular press is a primary factor in diffusing and legitimating management fads. The popular press also represents a new laboratory for the construction of management practices. Being deeply rooted in the social context, magazines and newspapers link management practices with social acceptance, coupling management and society at large. We use both qualitative and quantitative methodologies to analyze the data. The data set consists of a collection of articles on Human Resource Management published during the last decade in leading newspapers and magazines in Italy. We suggest that the dynamics of the diffusion and popularization of management practices in Italy over the last decade represents a fair example of the processes that have taken place throughout the Western world.popular press; diffusing management practices;

Consumption of management publications, The

This paper focuses on the consumption phase of the process of Production-Diffusion-Consumption of management knowledge. We argue that consumers play an important role in that process, one we feel has been overlooked in most of the existing literature. The first part of the paper is mostly theoretical. In it we first situate our contribution within the existing literature on management knowledge, and then approach the issue of the selection of knowledge sources by knowledge consumers. We sustain that manager-consumers have a strong impact on the success or failure of management ideas (selection), and also shape their content. The second part of the paper is mostly empirical. It consists of an analysis of a questionnaire that is intended to help us gain a better understanding of knowledge consumers' behaviour. Finally, we offer our conclusions.Management knowledge; knowledge consumers

Organizing on the edge: Heading to Mount Everest

The paper analyzes complexity in organizations facing threatening environments. Such contexts are characterized by very high levels of risk and uncertainty that challenge organizational survival: fire-fighting, aerospace projects, high-tech research programs, etc. A paradox of these contexts is that although they remain stable, organizations operating within them are often transitory, single-project and with a high variety of skills and knowledge. These organizations show a peculiar way of organizing complexity, that deserves special attention. This paper is built upon a longitudinal case study based on successive attempts to climb Mount Everest by Chilean expeditions. After three failed attempts (1984, 1986, 1989) the summit was finally reached in 1992 through one of the hardest routes. Each expedition was an independent organization, and structural arrangements as well as participants were different, except for a small permanent coreComplexity in organizations; environment;

The increasing role professional service firms play in the reform of shareholders' meetings

The purpose of this paper is to analyse the role of consultants, professional service firms or knowledge intermediaries in articulating the collective action of shareholders. The regulatory background is the current proposals for the reform of General Meetings of Shareholders in Spain. General Meetings are particularly revealing of shareholder activism, as they are the forum in which shareholders' actions can be most effective. We believe that our arguments are, to a very large extent, equally applicable to other European countries, as these proposals have been put forward in Spain within the context of the wider governance reforms promoted by the Winter Report in Europe and other national and supranational regulatory efforts.shareholders meetings; corporate governance; consultants;

Governance mechanisms for effective leadership: The case of Spain.

Most recent work on Boards of Directors has been focused on what can be considered best practices for effective governance in terms of roles, composition, process and style. Furthermore, this literature can be divided among very practically oriented managerial work, and more rigorous, theoretically based work. Most of the empirical research in this area has been centered on Anglo-Saxon countries. Some European countries, like Spain, have a very different governance tradition. Given this context, our present work pursues with three complementary objectives: 1. To ascertain the current status of governance practices in Spain. 2. To obtain evidence about which of these practices may be associated with effective governance. 3. To find out what factors account for the composition of General Managers’ compensation.leadership; effective governance;

Prácticas de gobierno en España.

El presente artículo expone los resultados de una innovadora investigación –no existe ningún trabajo de este tipo para el caso español– sobre las prácticas de gobierno y dirección de las empresas españolas. En primer lugar, se presentan los resultados sobre la situación actual de las prácticas de gobierno en España. El artículo incluye un amplio y exhaustivo estudio del consejo de administración, del comité de dirección y de la figura del jefe ejecutivo principal (sus funciones, composición, elección, funcionamiento, etc.). Además, se estudia la interrelación entre ellos y la distribución del poder dentro de la empresa. En segundo lugar, se analiza el equilibrio de poderes entre los órganos de gobierno y dirección de la empresa. Al estudiar la tipología de los consejos de administración según el «poder» del propio Consejo y del jefe ejecutivo principal, se argumenta en favor de los consejos participativos (consejos de administración y jefes ejecutivos «poderosos»), como los que mejor responden a una fórmula en la que se separan gobierno y dirección (dos tareas distintas, pero no opuestas). Finalmente, se estudia la evaluación y remuneración de los directivos, especialmente la del jefe ejecutivo principal.practicas gobierno España; consejos administracion; comite direccion;

Cell cycle and lineage progression of neural progenitors in the ventricular-subventricular zones of adult mice

Proliferating neural stem cells and intermediate progenitors persist in the ventricular-subventricular zone (V-SVZ) of the adult mammalian brain. This extensive germinal layer in the walls of the lateral ventricles is the site of birth of different types of interneurons destined for the olfactory bulb. The cell cycle dynamics of stem cells (B1 cells), intermediate progenitors (C cells), and neuroblasts (A cells) in the V-SVZ and the number of times these cells divide remain unknown. Using whole mounts of the walls of the lateral ventricles of adult mice and three cell cycle analysis methods using thymidine analogs, we determined the proliferation dynamics of B1, C, and A cells in vivo. Achaete-scute complex homolog (Ascl)1(+) C cells were heterogeneous with a cell cycle length (T(C)) of 18–25 h and a long S phase length (T(S)) of 14–17 h. After C cells, Doublecortin(+) A cells were the second-most common dividing cell type in the V-SVZ and had a T(C) of 18 h and T(S) of 9 h. Human glial fibrillary acidic protein (hGFAP)::GFP(+) B1 cells had a surprisingly short Tc of 17–18 h and a T(S) of 4 h. Progenitor population analysis suggests that following the initial division of B1 cells, C cells divide three times and A cells once, possibly twice. These data provide essential information on the dynamics of adult progenitor cell proliferation in the V-SVZ and how large numbers of new neurons continue to be produced in the adult mammalian brain

Biopharmaceutical optimization in neglected diseases for paediatric patients by applying the provisional paediatric biopharmaceutical classification system

Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/146268/1/bcp13650.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/146268/2/bcp13650_am.pd

Permittivity Spectrum of Low-Loss Liquid and Powder Geomaterials Using Multipoint Reentrant Cavities

[EN] Permittivity is a useful tool to characterize the composition and quality of many geomaterials. In general, the non-resonant permittivity measurement methods exhibit a higher degree of uncertainty than their resonant counterparts. In resonant measurements, the reduction in uncertainty comes typically with a loss in broadband. This article describes the theory, design, and application of multipoint coaxial reentrant resonant cavities applied to low-loss geomaterials at different temperatures. Specifically, a full-wave method based on circuit analysis is developed and applied for a circular corrugated waveguide. Moreover, the mode-matching method is applied to calculate the generalized admittance matrix (GAM). Two multipoint cavities and software were built and validated. The first cavity has five resonant frequencies, between 170 MHz and 2.3 GHz, and the second has four resonant frequencies, between 1.3 and 8.6 GHz. Thus, this method allows for ¿broadband-resonant¿ measurements. The permittivity values of liquid hydrocarbons, powdered kerogen, and pyrite are shown.Alvarez, JO.; Penaranda-Foix, FL.; Catalá Civera, JM.; Gutiérrez Cano, JD. (2020). Permittivity Spectrum of Low-Loss Liquid and Powder Geomaterials Using Multipoint Reentrant Cavities. IEEE Transactions on Geoscience and Remote Sensing. 58(5):3097-3112. https://doi.org/10.1109/TGRS.2019.2948052S3097311258