Search results for "PERT"

Conception, design des documents numériques

2009

Les travaux de recherche relatifs à la conception de documents numériques répondent à une forte demande sociale, car nos modèles de société et nos modèles éducatifs ont du mal à intégrer les enjeux liés à ces types de documents. Cela étant, l'objet est jeune, moins d'un demi-siècle, il n'y a donc rien d'exceptionnel à ce que les pratiques d'écriture et de formation soient seulement en cours d'élaboration. Les métiers concernés par la conception et le design de documents numériques sont nombreux et les savoir-faire méthodologiques dispersés. Il est par conséquent difficile d'avoir une vision globale sur toutes ces pratiques et les méthodologies afférentes. Conception, design des documents nu…

Towards a framework for assessment and management of cumulative human impacts on marine food webs

2015

Effective ecosystem-based management requires understanding ecosystem responses to multiple human threats, rather than focusing on single threats. To understand ecosystem responses to anthropogenic threats holistically, it is necessary to know how threats affect different components within ecosystems and ultimately alter ecosystem functioning. We used a case study of a Mediterranean seagrass (Posidonia oceanica) food web and expert knowledge elicitation in an application of the initial steps of a framework for assessment of cumulative human impacts on food webs. We produced a conceptual seagrass food web model, determined the main trophic relationships, identified the main threats to the fo…

Contribution of Molecular Structure to Self-Assembling and Biological Properties of Bifunctional Lipid-Like 4-(

2019

The design of nanoparticle delivery materials possessing biological activities is an attractive strategy for the development of various therapies. In this study, 11 cationic amphiphilic 4-(N-alkylpyridinium)-1,4-dihydropyridine (1,4-DHP) derivatives differing in alkyl chain length and propargyl moiety/ties number and position were selected for the study of their self-assembling properties, evaluation of their cytotoxicity in vitro and toxicity on microorganisms, and the characterisation of their interaction with phospholipids. These lipid-like 1,4-DHPs have been earlier proposed as promising nanocarriers for DNA delivery. We have revealed that the mean diameter of freshly prepared nanoparti…

Lapsuuden väkivaltakokemusten yhteys itse ilmoitettuun rikollisuuteen

1997

Esperti di corpi, corpi di esperti: expertise e dietetica.

2021

Today, dietetics is sectoral, specialised. The cause, among others, is to be found in the emergence of so-called nutritionism, a paradigm that arose at the end of the the 19th century and established itself in the first half of the 20th century, which brings together discoveries from food science and the needs of the food industry, imposing the dominance of calories and so-called nutrients. This shifted the attention of scientists and ordinary people to the invisible substances that food contains on a chemical and physical level (vitamins, fats sugars, proteins, and the like), with a profound transformation the way in which we consider food: no longer just units and sensory units, made up o…

Dilettanti, fra resistenza ed estasi

2021

Who is the amateur? what does he do? what doesn't it do? And especially: what can he do and what can't he do? There is a very close connection between the problem of expert competence, today as yesterday, and that of dilettantism, yesterday as today. But it is not always the same link: the internal intensity of the relationship varies, the degree of certainty of those who assume it, the value of the terms involved. According to the Italian dictionary, a dilettante is someone who "shows little ability", therefore an incompetent subject, far from skilled, inexperienced, therefore narratively inconclusive. But if we insert this description in its appropriate context, i.e. in the complex of the…

Plets, senyories i propietat a la València del segle XVIII

2021

Estructura senyorial de la València set-centista.

Development of herbicide-resistant varieties of foxtail millet

2012

International audience; Developing herbicide resistance in forsaken small crops could be a way to maintain food and cultivation system diversity, otherwise they would disappear due to the impossibility or cost to control the weeds. It is the case with foxtail millet, Setaria italica, a small grain, preferentially autogamous, C4 cereal. Three different herbicide-resistant materials were developed using wild germplasm resources. They allowed: 1) to better characterize the resistance mechanisms and inheritance; 2) provide plant materials to test the efficiency of the crop resistance at field level; and 3) experiment on the possible flow back of the resistance gene to the wild relative and amon…

Velocity-based resistance training: do women need greater velocity loss to maximize adaptations?

2021

Abstract Purpose Men and women typically display different neuromuscular characteristics, force–velocity relationships, and differing strength deficit (upper vs. lower body). Thus, it is not clear how previous recommendations for training with velocity-loss resistance training based on data in men will apply to women. This study examined the inter-sex differences in neuromuscular adaptations using 20% and 40% velocity-loss protocols in back squat and bench press exercises. Methods The present study employed an 8-week intervention (2 × week) comparing 20% vs. 40% velocity-loss resistance training in the back squat and bench press exercises in young men and women (~ 26 years). Maximum strengt…

ESTIMATING SOIL PARTICLE-SIZE DISTRIBUTION FOR SICILIAN SOILS

2009

The soil particle-size distribution (PSD) is commonly used for soil classification and for estimating soil behavior. An accurate mathematical representation of the PSD is required to estimate soil hydraulic properties and to compare texture measurements from different classification systems. The objective of this study was to evaluate the ability of the Haverkamp and Parlange (HP) and Fredlund et al. (F) PSD models to fit 243 measured PSDs from a wide range of 38 005_Bagarello(547)_33 18-11-2009 11:55 Pagina 38 soil textures in Sicily and to test the effect of the number of measured particle diameters on the fitting of the theoretical PSD. For each soil textural class, the best fitting perf…