349 research outputs found
Estimating the Production Function for Human Capital: Results from a Randomized Control Trial in Colombia
We examine the channels through which a randomized early childhood intervention in Colombia led to signiïŹcant gains in cognitive and socio-emotional skills among a sample of disadvantaged children aged 12 to 24 months at baseline. We estimate the determinants of parentsâ material and time investments in these children and evaluate the impact of the treatment on such investments. We then estimate the production functions for cognitive and socio-emotional skills. The eïŹects of the program can be explained by increases in parental investments, emphasizing the importance of parenting interventions at an early age
Estimating the Production Function for Human Capital: Results from a Randomized Control Trial in Columbia
We examine the channels through which a randomized early childhood intervention in Colombia led to signiïŹcant gains in cognitive and socio-emotional skills among a sample of disadvantaged children. We estimate production functions for cognitive and socio-emotional skills as a function of maternal skills and childâs past skills, as well as material and time investments that are treated as endogenous. The eïŹects of the program can be fully explained by increases in parental investments, which have strong eïŹects on outcomes and are complementary to both maternal skills and childâs past skills
Estimating the Production Function for Human Capital: Results from a Randomized Control Trial in Colombia
We examine the channels through which a randomized early childhood intervention in Colombia led to signiïŹcant gains in cognitive and socio-emotional skills among a sample of disadvantaged children aged 12 to 24 months at baseline. We estimate the determinants of parentsâ material and time investments in these children and evaluate the impact of the treatment on such investments. We then estimate the production functions for cognitive and socio-emotional skills. The eïŹects of the program can be explained by increases in parental investments, emphasizing the importance of parenting interventions at an early age
Estimating the Production Function for Human Capital: Results from a Randomized Control Trial in Colombia
We examine the channels through which a randomized early childhood intervention in Colombia led to signiïŹcant gains in cognitive and socio-emotional skills among a sample of disadvantaged children aged 12 to 24 months at baseline. We estimate the determinants of material and time investments in these children and evaluate the impact of the treatment on such investments. We then estimate the production functions for cognitive and socio-emotional skills. The eïŹects of the program can be explained by increases in parental investments, which have strong eïŹects on outcomes and are complementary to both maternal skills and childâs baseline skills
Diagnosis and Management of Field Pollution in the Case of an Organochlorine Pesticide, the Chlordecone
International audienc
Interaction between clients and physiotherapists in group exercise classes in geriatric rehabilitation
The aim of this paper is to explore how older people construct their interaction in group exercise classes in geriatric rehabilitation and what is their contribution to the interaction. Discourse analysis was employed and data, consisting of seven videotaped group-based exercise sessions, were collected from 52 older people (aged 66â93 years) and nine rehabilitation professionals in seven rehabilitation centres. Four discourse categories were found. In âtaciturn exercisingâ, older people remained verbally silent but physically active. In âsubmissive disagreeingâ, older people opposed the professionalsâ agenda by displaying reluctant consent to proposals. In âresilient endeavouringâ, older adults persisted on their course of action, regardless of the disapproval of the professionals. In âlay helpingâ, older people initiated spontaneous encouragement, but also gave verbal and physical assistance to their peers. Older people's meaningful contribution to interaction, whilst it may challenge the institutional flow of activities, can constitute an integral part of the re-ablement process of rehabilitation
A conceptual model of organochlorine fate from a combined analysis of spatial and mid- to long-term trends of surface and ground water contamination in tropical areas (FWI)
In this study, we investigated the management of long-term
environmental pollution by organic pollutants such as organochlorine
pesticides. We set out to identify conditions that are conducive to reducing
pollution levels for these persistent molecules and then propose a conceptual
model of organochlorine fate in water. Our approach looked at spatio-temporal
changes in pollutant contents in surface water (SW) and groundwater (GW) on a
large scale, in order to decipher the respective roles of soil, geology,
hydrology and past treatment practices. The case of chlordecone (CLD) on the
island of Martinique (1100 km2) was selected given the sampling
campaigns carried out since 2007 over more than 150Â sites. CLD, its
metabolite chlordecone-5b-hydro (5bCLD) and the metabolite-to-parent-compound
ratio were compared. As regards the spatial variability of water
contamination, our results showed that banana cropping areas explained the
location of contaminated SW and GW, whereas the combination of soil and
geology factors explained the main spatial variability in the 5bCLDâCLD
ratio. For temporal variability, these conditions defined a high diversity of
situations in terms of the duration of pollution, highlighting two groups:
water draining old geological formations and ferralsols or vertisols vs.
recent geology and andosols. A conceptual leaching model provided some key
information to help interpret downward trends in CLD and 5bCLD observed in
water. Lastly, a conceptual model of organochlorine fate is proposed to
explain the diversity of the 5bCLDâCLD ratio in water. Our conclusions
highlight the combined role of soil and groundwater residence time for
differentiating between conditions that are more conducive, or not, to the
disappearance of CLD from the environment. This paper presents a model that
provides an overall perception of organochlorine pesticide fate in the
environment.</p
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