313 research outputs found
De Kleinste Jager (<i>Stercorarius longicaudus</i>) in België, met een beschrijving van de eerste augustusvangst, 1969 = The occurrence of <i>Stercorarius longicaudus</i> in Belgium, with a description of the first capture in August 1969
On 30.VIII.1969 at Heist (North Sea coast), an exhausted longtailed skua was caught. It was released with a ring at Zeebrugge the next day. This juvenile bird, presumably in 2nd summer-plumage, has been measured and described in detail. It is the earliest observation in Belgium, but several records from early September are known. The bird was observed feeding always on remnants of mammals on the beach (a young pig, rabbits). Its presence was presumably caused by climatological factors (depression, dominant and rather strong W.-N.N.W. winds from the sea), as other skuas (St. parasiticus) were observed during the same period in Zeebrugge and S.W.-Holland as well
Een krombekstrandloper (<i>Calidris ferruginea</i>) na twee weken teruggemeld op de Kleine Antillen (Am.)
Ornitologisch onderzoek in de polder Veurne-Ambacht, de IJzerbroeken en de Handzamevallei (W.Vl.)
Self phase modulation in Highly nonlinear hydrogenated amorphous silicon
We study self phase modulation in submicron amorphous silicon-on-insulator waveguides. We extract both the real and imaginary part of the nonlinear parameter gamma from a 1 cm long waveguide with a cross-section of 500x220nm(2). The real and imaginary part of the nonlinear parameter are found to be 767W(-1)m(-1) and -28W(-1)m(-1) respectively. The figure of merit (FOM) is found to be 3.6 times larger than the FOM in crystalline silicon (c-Si)
The prevalence of depressive symptoms among fathers and associated risk factors during the first seven years of their child's life: findings from the Millennium Cohort Study
Background: Increasing evidence suggests that postnatal paternal depression is associated with adverse
emotional, behavioural and cognitive outcomes in children. Despite this, few studies have determined the
prevalence of fathers’ depressive symptoms during the first few years of their children’s lives and explored what
factors are related to these symptoms. We estimated the prevalence and examined associated risk factors of
paternal depressive symptoms in a nationally representative sample of fathers with children aged between 9
months and 7 years old from the Millennium cohort study. The risk factors examined were maternal depressive
symptoms, marital conflict, child temperament, child gender, paternal education, fathers’ ethnic background,
fathers’ employment status, family housing, family income and paternal age.
Methods: Secondary data analysis was conducted using the UK Millennium cohort study, which consisted of
data from England, Scotland, Wales and Northern Ireland of families with infants born in the year 2000/2001.
Data from four sweeps were used from when children in the cohort were aged 9 months, 3 years, 5 years and 7
years old (n=5,155-12,396).
Results: The prevalence of paternal depressive symptoms over time was 3.6% at 9 months, 1.2% at 3 years old,
1.8% at 5 years and 2.0% at 7 years (using Kessler cut-off points to categorise high depressive symptoms vs low
depressive symptoms). Linear regression trends (using continuous measures of depressive symptoms) indicated
that both paternal and maternal depressive symptoms decreased over time, suggesting similar patterns of
parents’ depressive symptoms after the birth of a child, but the decrease was more evident for mothers. Paternal
depressive symptoms were consistently associated with fathers’ unemployment, maternal depressive symptoms
and marital conflict. Socioeconomic factors such as rented housing when child was 9 months and low family
income when child was 5 and 7 years were also associated with higher paternal depressive symptoms.
Conclusions: Paternal depressive symptoms decreased among fathers when their children were aged between 9
months to 3 years old. Paternal unemployment, high maternal depressive symptoms and high marital conflict
were important risk factors for paternal depressive symptoms. In light of our findings, we would recommend a
more family centred approach to interventions for depression in the postnatal period.No funding was allocated to specifically support this work. Open access for this article was funded by King’s College Londo
An integrated photoacoustic terahertz gas sensor
An on-chip gas detector that transduces absorbed terahertz light to a mechanical motion using photoacoustics is proposed. The silicon chip confines light in an optical cavity, wherein an acousto-mechanical cavity is housed. The concentration of a trace gas can be determined from the amplitude of a membrane's motion. The simulations presented predict a minimum detectable limit of 1 ppm of methanol for 1 mW of terahertz power and an integration time of 25 ms
Bringing light into darkness: A multiple baseline mixed methods case series evaluation of Augmented Depression Therapy (ADepT)
This is the author accepted manuscript. The final version is available from Elsevier via the DOI in this record.Two core features of depression are elevations in negative valence system (NVS) functioning and
reductions in positive valence system (PVS) functioning. Existing psychological treatments have focused on
the NVS and neglected the PVS, which may contribute to sub-optimal outcomes. The present mixed
methods multiple randomised baseline case series preliminarily evaluates Augmented Depression Therapy
(ADepT), a novel depression treatment targeting PVS and NVS disturbance that aims both to reduce
depression and enhance wellbeing. Eleven clinically depressed participants were recruited. Intensive time
series analyses showed that 7/11 participants improved on both wellbeing and depression. Reliable and
clinically significant improvement was observed for 9/11 participants on at least one of these outcomes (and
also across a range of other PVS and NVS outcomes). Group level analyses showed significant pre to post
change on all outcomes. Benchmarking analyses indicated these effect sizes were at least comparable (and
for some PVS outcomes superior) to existing treatments. Gains were largely sustained over one-year followup. Qualitative interviews indicated ADepT was feasible and acceptable. These findings provide preliminary
support for ADepT as a novel depression treatment. Further evaluation directly comparing ADepT to
existing treatments using randomised controlled trial designs is now required.National Institute for Health Research (NIHR
- …