1,050 research outputs found
Zooplankton patchiness
This review considers three general aspects of research on zooplankton patchiness: the detection of patchiness, the description of patchiness and the causes of patchiness
Influence of size and maturity of coconut seednuts and the rate of germination and subsequnt growth of seedings
The effects of soil type on nutrient losses and runoff in the catchment of Bassenthwaite lake
Micronutrients in the nutrition of Coconut. II.:effect ofmicronutrient deficiencies on the distribution of Fe, Mn, Cu, Znand B in the leaf components of coconut seedlings
A general assessment of environmental and biological features of Windermere and their susceptibility to change
Bassenthwaite (Lake) is one of the larger Cumbrian lakes, certainly one of the most distinctive, and of considerable conservation and amenity value. Although its shores lack sizeable settlements, its main inflow receives sewage effluent from a major tourist centre (Keswick) and is subject to episodic floods. These influences, the growing development of leisure activities at the lake (e.g. sailing, time-share units), and recent road-construction, have led to past appraisals of ecological impacts and lake management. The lake has not been the subject of intense and long-term ecological study, but much scattered information exists that is relevant to future management decisions. In the present Report, commissioned by North West Water, such information - published and unpublished - is surveyed. Especial attention is given to evidence bearing on susceptibility to change, affecting the lake environment and its biota or species of conservation interest. Extensive use has been made of the results of a recent (1986-7) seasonal survey by the FBA
A longitudinal investigation of repressive coping and ageing
This is an Accepted Manuscript of an article published by Taylor & Francis in Aging & Mental Health on October 2016, available online: http://www.tandfonline.com/doi/full/10.1080/13607863.2015.1060941.Two studies investigated the possibility that repressive coping is more prevalent in older adults and that this represents a developmental progression rather than a cohort effect. Study 1 examined repressive coping and mental health cross-sectionally in young and old adults. Study 2 examined whether there was a developmental progression of repressive coping prevalence rates in a longitudinal sample of older adults.Peer reviewedFinal Accepted Versio
Virtual Compton Scattering and Neutral Pion Electroproduction in the Resonance Region up to the Deep Inelastic Region at Backward Angles
We have made the first measurements of the virtual Compton scattering (VCS)
process via the H exclusive reaction in the nucleon resonance
region, at backward angles. Results are presented for the -dependence at
fixed GeV, and for the -dependence at fixed near 1.5 GeV.
The VCS data show resonant structures in the first and second resonance
regions. The observed -dependence is smooth. The measured ratio of
H to H cross sections emphasizes the different
sensitivity of these two reactions to the various nucleon resonances. Finally,
when compared to Real Compton Scattering (RCS) at high energy and large angles,
our VCS data at the highest (1.8-1.9 GeV) show a striking -
independence, which may suggest a transition to a perturbative scattering
mechanism at the quark level.Comment: 20 pages, 8 figures. To appear in Phys.Rev.
UV emission from young and middle-aged pulsars: Connecting X-rays with the optical
We present the UV spectroscopy and timing of three nearby pulsars (Vela,
B0656+14 and Geminga) recently observed with the Space Telescope Imaging
Spectrograph. We also review the optical and X-ray properties of these pulsars
and establish their connection with the UV properties. We show that the
multiwavelengths properties of neutron stars (NSs) vary significantly within
the sample of middle-aged pulsars. Even larger differences are found between
the thermal components of Ge-minga and B0656+14 as compared to those of
radio-quiet isolated NSs. These differences could be attributed to different
properties of the NS surface layers.Comment: To appear in Astrophysics and Space Science, Proceedings of "Isolated
Neutron Stars: from the Interior to the Surface", eds. D. Page, R. Turolla
and S. Zane; 10 pages, 4 figures, 3 table
Measurement of the B0-anti-B0-Oscillation Frequency with Inclusive Dilepton Events
The - oscillation frequency has been measured with a sample of
23 million \B\bar B pairs collected with the BABAR detector at the PEP-II
asymmetric B Factory at SLAC. In this sample, we select events in which both B
mesons decay semileptonically and use the charge of the leptons to identify the
flavor of each B meson. A simultaneous fit to the decay time difference
distributions for opposite- and same-sign dilepton events gives ps.Comment: 7 pages, 1 figure, submitted to Physical Review Letter
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