4,197 research outputs found
[Fetal growth and activity at 20 to 24 weeks of gestation (preliminary study)].
BACKGROUND: Recent researches show that psychological development begins much before birth and prenatal influences can explain a significant part of the future variability in infants' behaviour and development.
AIMS: The aim of this study was to characterize the fetal development between 20 and 24 weeks of gestation, related to the measures of fetal growth-- iparietal diameter, abdominal circumference, head circumference, femur length and fetal weight-- and fetal activity--fetal heart rate and fetal movements. We also tried to establish if there are any differences in these measures related to the mothers' and fetus' sociodemographic features, obstetrical conditions and exposure to drugs.
METHOD: The sample of this study involved 48 fetus (52.1% female and 47.9% male) with an estimated gestational age (GA) between 20-24 weeks (Mean = 21 weeks and 1 day), whose mothers had appointments at the Obstetric and Gynaecological medical consultation of Júlio Dinis Maternity Hospital (MJD, Oporto). A video tape of the fetal behaviour was made and ultrasound biometry measurements were collected from the morphological ultrasound report.
RESULTS: A statistical analysis of fetal data, after gestational age control, showed differences in fetal growth measures related to mothers' occupational status [F(1,41) = 7.28; p = .000], marital status [F(1,41) = 2.61; p = .04], household arrangements [F(1,41) = 2.91; p = .03] and coffee consumption [F(1,40) = 2.55; p = .05]. Differences in fetal activity measures (fetal heart rate) associated to fetus gender [F(1,16) = 5.84; p = .009] were also found.
CONCLUSIONS: We can conclude about the sensibility of fetal development to prenatal factors related to the mothers' and fetus' sociodemographic features and exposure to drugs.Esta investigação foi financiada pela Fundação para a Ciência e a Tecnologia, no âmbito do projecto FCT POCTI/SAUESP,
56397/2004 e da Bolsa de Doutoramento SFRH/BD/13768/200
Transições e metamorfoses: um contributo para o debate sobre os desafios do sindicalismo no contexto das globalizações
O sindicalismo consolidou-se durante a industrialização e o fordismo, no seio de relações de emprego «normais», em contextos de expansão económica, proliferação de políticas keynesianas e de valorização do capital humano. Ora, os contextos têm vindo a mudar: as relações de emprego transformaram-se, o operário já não constitui a base principal de formação dos sindicatos nem das estruturas nacionais de emprego, os contextos favoráveis de social-democracia e de Estado--Providência estão em falência; e a abertura das economias ao mercado global alterou os padrões de competitividade transnacional, pulverizando muitos trabalhadores em individualização, fragilização e maior desemprego. Para sobreviverem nestes contextos e desempenharem um papel proeminente na governança global, os sindicatos necessitam de metamorfoses estratégicas nos seus objectivos e instrumentos de actuação. Pretende-se aqui reflectir a crise sindical, os desafios emergentes e as «utopias criativas» de revitalização sindical
Uso do extrato de folhas do cartucho de milho como estimulante à ovoposição de doru luteipes (Dermaptera, forficulidae).
Efeito do preparo do solo e do tratamento de sementes no controle de pragas iniciais na cultura do milho.
Catalytic reutilization of chromium-loaded NaY oxidation of ethyl acetate
EUROPACAT IX - Catalysis for a Sustainable WorldThe
aim
of
this
study
is
the
reutilization
of
new
materials
obtained
by
biorecovery
of
chromium
from
water,
in
catalytic
oxidations
of
volatile
organic
compounds.
A
biosorption
system
consisting
of
a microorganism
supported
on
a NaY
zeolite
was
used
to
remove
hexavalent
chromium
from
contaminated
water.
After
the
biosorption
process,
the
chromium-loaded
zeolite
was
used
as
catalyst
to
be
applied
in
catalytic
oxidation
of
ethyl
acetate.
The
results
showed
that
a higher content
of
chromium
enhanced
the
activity
and
the
C0
2
selectivity
of
the
catalystinfo:eu-repo/semantics/publishedVersio
The footprint of recent and strong demographic decline in the genomes of Mangalitza pigs
Altres ajuts: The authors also acknowledge the support of the Spanish Ministry of Economy and Competitivity for the Center of Excellence Severo Ochoa 2016-2019 (SEV-2015-0533) grant awarded to the Centre for Research in Agricultural Genomics (CRAG). Tainã Figueiredo Cardoso was funded with a fellowship from the CAPES Foundation-Coordination of Improvement of Higher Education, Ministry of Education of the Federal Government of Brazil. Thanks also to the CERCA Programme of the Generalitat de Catalunya.The Mangalitza pig breed has suffered strong population reductions due to competition with more productive cosmopolitan breeds. In the current work, we aimed to investigate the effects of this sustained demographic recession on the genomic diversity of Mangalitza pigs. By using the Porcine Single Nucleotid Polymorphism BeadChip, we have characterized the genome-wide diversity of 350 individuals including 45 Red Mangalitza (number of samples; n=20 from Hungary and n=25 from Romania), 37 Blond Mangalitza, 26 Swallow-belly Mangalitza, 48 Blond Mangalitza × Duroc crossbreds, 5 Bazna swine, 143 pigs from the Hampshire, Duroc, Landrace, Large White and Pietrain breeds and 46 wild boars from Romania (n=18) and Hungary (n=28). Performance of a multidimensional scaling plot showed that Landrace, Large White and Pietrain pigs clustered independently from Mangalitza pigs and Romanian and Hungarian wild boars. The number and total length of ROH (runs of homozygosity), as well as FROH coefficients (proportion of the autosomal genome covered ROH) did not show major differences between Mangalitza pigs and other wild and domestic pig populations. However, Romanian and Hungarian Red Mangalitza pigs displayed an increased frequency of very long ROH (>30 Mb) when compared with other porcine breeds. These results indicate that Red Mangalitza pigs underwent recent and strong inbreeding probably as a consequence of severe reductions in census size
Occurrence an biology of Dinocampus coccinellae (Schrank, 1802) (Hymenoptera; Braconidae: Euphorinae) parasiting different species of Coccinellidae (Coleptera) in Neotropical region.
Surveys on Coccinellidae (Coleoptera) in Sete Lagoas city, Minas Gerais state, Brazil, indicated the parasitism of adults of the species Coleomegilla maculata De Geer, 1775, Eriopis connexa (Germar, 1824) and Olla v-nigrum (Mulsant, 1866), by Dinocampus coccinellae (Schrank, 1802) (Hymenoptera; Braconidae: Euphorinae). Since then, the parasitoid have been maintained in its original hosts at the Insect Rearing Laboratory - LACRI of the Brazilian Agricultural Research Institution - Embrapa Milho e Sorgo. Besides the citation of occurrence in Brazil, this work also indicates the parasitoid preference for C. maculata (70% of parasitism), followed by O. v-nigrum (43.3% of parasitism) and E. connexa (36.7% of parasitism). Total life cycle of D. coccinellae was longer on C. maculata (32.4 ± 0.48 days), compared to O. v-nigrum (29.5 ± 0.49 days) and E. connexa (27.8 ± 0.4 days). Due to the relatively high percentage of field parasitism, D. coccinellae can reduce the efficiency of biological pest control by Coccinellidae predators especially in the case of C. maculata
- …