Search results for "tail"
showing 10 items of 702 documents
Hoivan tekijät : suomalainen hoivatyö pohjoismaisessa tarkastelussa
2009
Origin of atmospheric lead in Johannesburg, South Africa
2006
International audience; The origin of lead in the atmosphere of Johannesburg, South Africa was investigated on the basis of elemental and lead isotopic analyses of coals, mine dumps, gasoline, and about 30 epiphytic lichen samples. Lead predominantly comes from automotive exhausts in urban and suburban areas, as leaded antiknock additives were still in use in South Africa at the time of the study. Although dust emissions from the numerous mine-tailing dumps were expected to contribute significantly to the heavy metal budget, the southern townships that are surrounded by the dumps (such as Soweto and other historically Black residential areas) do not appear to be more than partially influenc…
Heterogeneous contributions of change in population distribution of body mass index to change in obesity and underweight
2021
From 1985 to 2016, the prevalence of underweight decreased, and that of obesity and severe obesity increased, in most regions, with significant variation in the magnitude of these changes across regions. We investigated how much change in mean body mass index (BMI) explains changes in the prevalence of underweight, obesity, and severe obesity in different regions using data from 2896 population-based studies with 187 million participants. Changes in the prevalence of underweight and total obesity, and to a lesser extent severe obesity, are largely driven by shifts in the distribution of BMI, with smaller contributions from changes in the shape of the distribution. In East and Southeast Asia…
Mercury uptake into poplar leaves
2016
International audience; Tailings dumps require mercury stabilization to prevent air pollution by evaporated mercury, which can be achieved through plant covers. Plants are considered a net sink for atmospheric Hg via incorporation into leaf tissues. However, most studies related to Hg uptake by plants have considered plants exposed to only atmospheric Hg, whereas in the case of tailings dumps, plants are potentially exposed to both soil and atmospheric Hg. The goal of this work is to evaluate the relative contributions of root and atmospheric pathways by growing poplar (Populus trichocarpa X Populus maximowiczii/var Skado) cuttings on either control or polluted substrates and under either n…
Etude documentaire sur les portails
2007
When Bitcoin Has the Flu: On Bitcoin’s Performance to Hedge Equity Risk in the Early Wake of the COVID-19 Outbreak
2020
Using the coronavirus COVID-19 outbreak as a set-up for a quasi-experiment, this study derives novel insights on the dynamic correlation between Bitcoin and U.S. stocks. Given the unprecedented scale of infections and the nature of the virus, the potential impact on the dynamic correlation was unpredictable and therefore uncertain. Using a difference-in-differences setting, the dynamic correlation between Bitcoin and stocks is controlled for the dynamic correlation between gold and stocks. This study finds that Bitcoin performed poorly in hedging this tail risk.
Mating strategies and resulting patterns in mate guarding crustaceans : an empirical and theoretical approach
2012
Because of strong costs associated with each mating event, females are usually not as available for reproduction as males at any given time. Males are therefore in competition with each other for access to receptive females, hence leading to strong sexual selection. One textbook case of such a mating system occurs in moulting crustaceans where females can only be fertilized during a short period following their moult. This has favoured the evolution male strategies to monopolize females before their period of receptivity. Such a precopulatory mate guarding is widespread among many taxa and represents one of the most striking example of males’ competitive traits favoured by sexual selection.…
Two Types of pseudo-clefts?
2010
Sentences such as 'What Fred does is complain' and 'What Fred does is important' have both been labeled as pseudo-clefts, though of two distinct types. We provide four tests to structurally distinguish such constructions. Entailment patterns and a number of structural ties between the post-copular constituent and specific constituents of the pre-copular relative clause suggest using the label ‘pseudo-cleft’ for the former type only. This paper also examines certain cases of pseudo-clefts with no simple correlates, and vice versa, to argue – contra Higgins 1973 – that these do not necessarily contradict the existence of a structural connection (a transformation, in the sense of Z. S. Harris)…
Enterprise System Implementation in a Franchise Context: An Action Case Study
2015
Abstract This research paper reports on a study focusing on a franchise relationship that utilizes an enterprise system (ES) to optimize its supply chain. The ES is in its post-implementation phase; however, the franchisee has challenges with inventory management due to poor data quality, which causes problems with vendor analysis and revenue control. An action case study was carried out to identify and diagnose the source of the problem, and interventions were implemented and evaluated. The findings demonstrate that several of the challenges related to poor data quality in the supply chain were influenced by problems of a socio-technical character. These included a lack of understanding of…
Competitive reactions to market entry
2004
Grocery retailing markets are becoming more open and international. Finland is an example of a previously closed and restricted market which has recently opened its borders to foreign food products as well as food retailers. This paper describes the competitive dynamics and actions of the domestic retailers that took place when the first foreign grocery retailer entered the market. The paper concludes that the main competitive moves were related to the price of food products and to changes in product ranges. The domestic retailers imitated the concept of the entrant and added new low‐priced own brands into their product mixes. The roles of the market actors were reversed during the entry pr…