383 research outputs found
Publier pendant et aprĂšs la thĂšse.: Quelques conseils Ă l'attention des jeunes sociologues
Publier en tant que doctorant ou jeune docteur en sociologie n'est pas chose facile. Les auteurs proposent de livrer ici quelques conseils de base permettant d'optimiser les chances de voir se concrĂ©tiser des projets de publication (recensions, articles, ouvrages). Il s'agit d'idĂ©es d'ordre pratique, Ă©voquant des plans d'action et des « tours de main » de l'Ă©criture sociologique qui semblent avoir convenablement fonctionnĂ© pour beaucoup de chercheurs. Bien plus qu'un simple tĂ©moignage relatant une expĂ©rience singuliĂšre, cet article constitue une synthĂšse d'un grand nombre de stratĂ©gies de publication Ă l'Ćuvre dans le domaine de la recherche qui se sont rĂ©vĂ©lĂ©es d'une rĂ©elle efficacitĂ©
Seasonal density estimates of common large herbivores in Hwange National Park, Zimbabwe
The monitoring of ecosystem processes and states is a critical step in the management of protected areas. It allows for the assessment of the success or failure of practices ranging from âlaissez-faireâ to strong hands-on policies. Much effort is for instance devoted to the monitoring of wildlife abundance, particularly when associated with large ecological influence or socio-economical values (Gordon, Hester & Festa-Bianchet, 2004). In Africa, the diversity of large herbivores represents both a major asset of protected areas and a global conservation target as a consequence of the dramatic decline of wildlife populations under other land uses. In addition to the local importance of such monitoring data, collation of data from multiple sites ultimately allows general patterns to be revealed (e.g. Fritz & Duncan, 1994). Here, we contribute to the general knowledge on large African herbivores by reporting on their seasonal abundance, using road transect counts, in Hwange National Park (thereafter HNP), north-western Zimbabwe
How to produce a diagnostic opinion at a distance? New forms of tele-expertise use in France and their transformational effects on healthcare practices in dermatology
How to produce a diagnostic opinion at a distance, without seeing and examining patients? This is the challenge of tele-expertise (TLX), defined first in legal terms, as one of the five telemedicine acts in France. It consists of a particular form of healthcare practice in which a physician, known as the ârequesterâ, solicits remotely the opinion of another practitioner, a specialist known as the ârequestedâ, by sharing with him/her clinical information and photographs that he/she produces for this purpose, based on the medical examination of the patient. This practice is certainly not new; it is inherent to any medical activity where it develops outside of any legislative and regulatory framework, between practitioners who already know each other more or less well. So the novelty of the recent forms of TLX as a legally recognized medical act in its own right, relies mainly on the development of secure file exchange platforms within territorialized care networks, the systematization of these practices beyond the networks of acquaintances and their coverage by the health insurance. The purpose of this article is to describe the various usages of this new form of TLX, as well as to understand how they contribute to the in-depth transformation of care practices and organizations. It suggests doing so in the specific case of dermatology, through a qualitative study based on semi-directive interviews approximately with fifty French dermatologists, mainly requested experts, practicing TLX both in the context of private practice and in a hospital setting. The results of this empirical study are presented in three parts. First, we will consider the specificity of dermatological practice and describe the particular ways in which TLX is being implemented in this field, as a new framework. Then, we will report on the multiples efforts and skills needed to produce a diagnostic opinion remotely. We will lastly present various uses that dermatologists develop of TLX in different socio-organizational configurations. We will finally discuss how these uses transform the usual practices of dermatologists, not only by creating a new type of activity, but also by allowing them to participate differently in the organization of care pathways
Supporting Earth-Observation Calibration and Validation: A new generation of tools for crowdsourcing and citizen science
Citizens are providing vast amounts of georeferenced data in the form of in situ data collections as well as interpretations and digitization of Earth-observation (EO) data sets.
These new data streams have considerable potential for supporting the calibration and validation of current and future products derived from EO. We provide a general introduction to this growing area of interest and review existing crowdsourcing and citizen science (CS) initiatives of relevance to EO. We then draw upon our own experiences to provide case studies that highlight different types of data collection and citizen engagement and discuss the various barriers to adoption.
Finally, we highlight opportunities for how citizens can become part of an integrated EO monitoring system in the framework of the European Union (EU) space program, including Copernicus and other monitoring initiatives
Chemical Power for Microscopic Robots in Capillaries
The power available to microscopic robots (nanorobots) that oxidize
bloodstream glucose while aggregated in circumferential rings on capillary
walls is evaluated with a numerical model using axial symmetry and
time-averaged release of oxygen from passing red blood cells. Robots about one
micron in size can produce up to several tens of picowatts, in steady-state, if
they fully use oxygen reaching their surface from the blood plasma. Robots with
pumps and tanks for onboard oxygen storage could collect oxygen to support
burst power demands two to three orders of magnitude larger. We evaluate
effects of oxygen depletion and local heating on surrounding tissue. These
results give the power constraints when robots rely entirely on ambient
available oxygen and identify aspects of the robot design significantly
affecting available power. More generally, our numerical model provides an
approach to evaluating robot design choices for nanomedicine treatments in and
near capillaries.Comment: 28 pages, 7 figure
The Modified Dynamic Gait Index and Limits of Stability in Myotonic Dystrophy Type 1
INTRODUCTION:
The purpose of this study was to describe and compare the performance of balance and walking tests in relation to self-reported fall history in adults with myotonic dystrophy type 1 (DM1). METHODS:
Twenty-two (13 male) participants with DM1 completed, a 6-month fall history questionnaire, the modified Dynamic Gait Index (mDGI), limits of stability (LoS) testing, and 10-m walking tests. RESULTS:
Mean (SD) falls in 6 months was 3.7 (3.1), and 19 (86%) participants reported at least 1 fall. Significant differences in mDGI scores (Pâ=â0.006) and 10-m fast walking gait velocity (Pâ=â0.02) were found between those who had been classified as fallers and those who had been classified as nonfallers. Significant correlations were found between mDGI scores and 10-m walking time. DISCUSSION:
Falls are common in DM1, and the mDGI may have potential to distinguish fallers from nonfallers, whereas the LoS failed to detect such impairment. Future studies should further explore use of the mDGI in DM1
C-Nap1 mutation affects centriole cohesion and is associated with a Seckel-like syndrome in cattle
Caprine-like Generalized Hypoplasia Syndrome (SHGC) is an autosomal-recessive disorder in Montbéliarde cattle. Affected animals present a wide range of clinical features that include the following: delayed development with low birth weight, hind limb muscular hypoplasia, caprine-like thin head and partial coat depigmentation. Here we show that SHGC is caused by a truncating mutation in the CEP250 gene that encodes the centrosomal protein C-Nap1. This mutation results in centrosome splitting, which neither affects centriole ultrastructure and duplication in dividing cells nor centriole function in cilium assembly and mitotic spindle organization. Loss of C-Nap1-mediated centriole cohesion leads to an altered cell migration phenotype. This discovery extends the range of loci that constitute the spectrum of autosomal primary recessive microcephaly (MCPH) and Seckel-like syndromes
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