96 research outputs found
Raising the age of participation in education or training to 18 in Wales
In England, the compulsory age of participation in education or training was raised to 17 in 2013 and then 18 in 2015. In Wales, Scotland, and Northern Ireland, the school leaving age is 16. The idea of raising the age of participation in education or training is gaining traction in the Scottish context, as well as in Wales. The Wales Centre for Public Policy (WCPP) conducted research for the Welsh Government to explore the implications of pursuing this policy in Wales. The research considered how RPA might interact with ongoing reforms to school age and post-16 provision in Wales, and explored alternative policies which concentrate on reducing early school leaving, as opposed to policies that legally require young people to remain in learning for longer periods of time
A step towards a field based agility test in team sports. A perspective on return to play criteria.
SN 2021zny: an early flux excess combined with late-time oxygen emission suggests a double white dwarf merger event
We present a photometric and spectroscopic analysis of the ultra-luminous and
slowly evolving 03fg-like Type Ia SN 2021zny. Our observational campaign starts
from hours after explosion (making SN 2021zny one of the earliest
observed members of its class), with dense multi-wavelength coverage from a
variety of ground- and space-based telescopes, and is concluded with a nebular
spectrum months after peak brightness. SN 2021zny displayed several
characteristics of its class, such as the peak brightness ( mag),
the slow decline ( mag), the blue early-time colours,
the low ejecta velocities and the presence of significant unburned material
above the photosphere. However, a flux excess for the first days
after explosion is observed in four photometric bands, making SN 2021zny the
third 03fg-like event with this distinct behavior, while its d spectrum
shows prominent [O I] lines, a very unusual characteristic of thermonuclear
SNe. The early flux excess can be explained as the outcome of the interaction
of the ejecta with of H/He-poor circumstellar
material at a distance of cm, while the low ionization state of
the late-time spectrum reveals low abundances of stable iron-peak elements. All
our observations are in accordance with a progenitor system of two
carbon/oxygen white dwarfs that undergo a merger event, with the disrupted
white dwarf ejecting carbon-rich circumstellar material prior to the primary
white dwarf detonation.Comment: 19 pages, 16 figures, accepted for publication in MNRA
The spectral evolution of AT 2018dyb and the presence of metal lines in tidal disruption events
We present light curves and spectra of the tidal disruption event (TDE)
ASASSN-18pg / AT 2018dyb spanning a period of one year. The event shows a
plethora of strong emission lines, including the Balmer series, He II, He I and
metal lines of O III 3760 and N III 4100, 4640
(blended with He II). The latter lines are consistent with originating from the
Bowen fluorescence mechanism. By analyzing literature spectra of past events,
we conclude that these lines are common in TDEs. The spectral diversity of
optical TDEs is thus larger than previously thought and includes N-rich events
besides H- and He-rich events. We study how the spectral lines evolve with
time, by means of their width, relative strength, and velocity offsets. The
velocity width of the lines starts at 13000 km s and decreases
with time. The ratio of He II to N III increases with time. The same is true
for ASASSN-14li, which has a very similar spectrum to AT 2018dyb but its lines
are narrower by a factor of 2. We estimate a black hole mass of
= by using the -
relation. This is consistent with the black hole mass derived using the MOSFiT
transient fitting code. The detection of strong Bowen lines in the optical
spectrum is an indirect proof for extreme ultraviolet and (reprocessed) X-ray
radiation and favors an accretion origin for the TDE optical luminosity. A
model where photons escape after multiple scatterings through a super-Eddington
thick disk and its optically thick wind, viewed at an angle close to the disk
plane, is consistent with the observations.Comment: Accepted version. Updated with new photometry and spectra, including
an X-shooter spectrum used to determine the BH mass. Two more figures added
and line measurements tabulated. No significant scientific updates and the
conclusions remain unaffecte
Crop Updates 2007 - Weeds
This session covers thirty two papers from different authors:
1. ACKNOWLEDGEMENTS, Alexandra Douglas CONVENOR – WEEDS DEPARTMENT OF AGRICULTURE AND FOOD
WILD RADISH MANAGEMENT
2. Decimate a wild radish seed bank in five years, Peter Newman, Sally Peltzer, Abul Hashem and Aik Cheam, Department of Agriculture and Food
3. High level of seed-set control in wild radish is achievable, Aik Cheam and Siew Lee,Department of Agriculture and Food
4. Wild radish: Best management practice, Aik Cheam and Siew Lee, Department of Agriculture and Food
5. Control of phenoxy resistant wild radish through the combined effects of wheat competition and phenoxy herbicides, Natalie Maguire and Michael Walsh, WAHRI, School of Plant Biology, University of Western Australia
6.Efficacy of florasulam on chlorsulfuron resistant and susceptible wild radish populations in Western Australia, Michael Walsh1 and Dan Cornally2, 1WAHRI, School of Plant Biology, University of Western Australia, 2Dow Agrosciences Australia
7. Does liming to increase soil pH limit the growth and development of wild radish (Raphanus raphanistrum)Matt Willis and Michael Walsh, WAHRI, School of Plant Biology, University of Western Australia
IWM TECHNIQUES AND SEEDBANKS
8. Weed trimming – a potential technique to reduce weed seed set, Glen Riethmuller, Abul Hashem and Shahab Pathan, Department of Agriculture and Food
9. Burn narrow windrows in the wind, Peter Newman1and Michael Walsh2, 1Department of Agriculture and Food, 2Research Fellow, WA Herbicide Resistance Initiative
10. Winning the Weed War with the Weed Seed Wizard! Michael Renton, Sally Peltzer and Art Diggle, Department of Agriculture and Food
HERBICIDE RESISTANCE AND GENE FLOW
11. Frequency of herbicide resistance in wild oat (Avena fatua) across the Western Australian wheatbelt, Mechelle Owen and Stephen Powles, WA Herbicide Resistance Initiative, School of Plant Biology, University of Western Australia
12. Pollen mediated gene flow of herbicide resistance can occur over long distances doe annual ryegrass (Lolium rigidum): Results of two years with different meteorological conditions, Roberto Busi, Robert Barrett-Lennard and Stephen B. Powles, Western Australian Herbicide Resistance Initiative, School of Plant Biology – University of Western Australia
13. Doublegee has developed resistance to metsulfuron-methyl within WA wheatbelt, Dr Abul Hashem1and Dr Shahab Pathan2, 1Senior Research Officer, and 2Research Officer, Department Agriculture and Food
14. Another case of glyphosate resistance in annual ryegrass confirmes within Western Australia, Dr Abul Hashem1and Dr Shahab Pathan2, 1Senior Research Officer, and 2Research Officer, Department Agriculture and Food
15. Glyphosate resistance in the northern NSW – implications for Western Australian farming systems, Andrew Storrie, Tamworth Agricultural Institute, NSW Department of Primary Industries
ALTERNATIVES TO TRIFLURALIN, KNOCKDOWNS, TANK MIXES AND NOVEL USES
16. Alternative pre-emergent herbicides to trifluralin for annual ryegrass control, Mr David Minkey and Dr Abul Hashem, Department of Agriculture and Food,
17. Evaluation of a new pre-emergent herbicide alternative dor the control of trifluralin resistant Lolium rigidum Gaudin (annual ryegrass) in wheat and barley, Craig A. Ruchs, Syngenta Crop Protection Australia Pty Ltd and Dr Peter Boutsalis, University of Adelaide
18. Novel knockdown tank mixes: Results from 12 trials over four years, Shahab Pathan1, Abul Hashem2, Catherine Borger3, Nerys Wilkins and Julie Roche, Department of Agriculture and Food, Western Australia, and 3the University of Western Australia
19. Alternative herbicides for weed control in lupins, Peter Newman and Martin Harries, Department of Agriculture and Food
20. Novel use application of clopyealid in lupins, John Peirce, and Brad Rayner, Department of Agriculture and Food
21. A model to predict grass selective herbicide rates, John Moore, Department of Agriculture and Food
CROP AND WEED MANAGEMENT
22. Inter-row weed control in wide row lupin using knockdown-based tank mixes, Dr Abul Hashem1, Ray Fulwood2 and Chris Roberts3, 1Senior Research Officer, Department of Agriculture and Food, 2Farmer, Meckering, WA, 3Technical Officer, Department of Agriculture and Food
23. Timing of weed removal in wide-row lupins, Sally Peltzer, Shahab Pathan and Paul Matson, Department of Agriculture and Food
24. The effect of row spacing and crop density on competitiveness of lupins with wild radish, Bob French and Laurie Maiolo, Department of Agriculture and Food
25. Is delayed sowing a good strategy for weed management in lupins? Bob French, Department of Agriculture and Food
26. Delayed sowing as a strategy to manage annual ryegrass, Department of Agriculture and Food
HERBICIDE TOLERANCE
27. The effect of herbicides on nodulation in lupins, Lorne Mills1, Harmohinder Dhammu2 and Beng Tan1, 1Curtin University of Technology, and 2Department of Agriculture and Food
28. Response of new wheat varieties to herbicides, Harmohinder Dhammu, Department of Agriculture and Food
29. Herbicide tolerance of new barley varieties, Harmohinder Dhammu, Vince Lambert and Chris Roberts, Department of Agriculture and Food
30. Herbicide tolerance of new oat varieties, Harmohinder Dhammu, Vince Lambert and Chris Roberts, Department of Agriculture and Food
OTHER WEEDY MATTERS
31. Research and extension need for wild radish and other cruciferous weeds, Aik Cheam, Department of Agriculture and Food
32. e-weed – an information resource of seasonal weed management issues, Vanessa Stewartand Julie Roche, Department of Agriculture and Foo
Improvements to services at the European Nucleotide Archive
The European Nucleotide Archive (ENA; http://www.ebi.ac.uk/ena) is Europe’s primary nucleotide sequence archival resource, safeguarding open nucleotide data access, engaging in worldwide collaborative data exchange and integrating with the scientific publication process. ENA has made significant contributions to the collaborative nucleotide archival arena as an active proponent of extending the traditional collaboration to cover capillary and next-generation sequencing information. We have continued to co-develop data and metadata representation formats with our collaborators for both data exchange and public data dissemination. In addition to the DDBJ/EMBL/GenBank feature table format, we share metadata formats for capillary and next-generation sequencing traces and are using and contributing to the NCBI SRA Toolkit for the long-term storage of the next-generation sequence traces. During the course of 2009, ENA has significantly improved sequence submission, search and access functionalities provided at EMBL–EBI. In this article, we briefly describe the content and scope of our archive and introduce major improvements to our services
Recommended from our members
Mapping Copy Number Variation by Population Scale Genome Sequencing
Genomic structural variants (SVs) are abundant in humans, differing from other forms of variation in extent, origin and functional impact. Despite progress in SV characterization, the nucleotide resolution architecture of most SVs remains unknown. We constructed a map of unbalanced SVs (that is, copy number variants) based on whole genome DNA sequencing data from 185 human genomes, integrating evidence from complementary SV discovery approaches with extensive experimental validations. Our map encompassed 22,025 deletions and 6,000 additional SVs, including insertions and tandem duplications. Most SVs (53%) were mapped to nucleotide resolution, which facilitated analysing their origin and functional impact. We examined numerous whole and partial gene deletions with a genotyping approach and observed a depletion of gene disruptions amongst high frequency deletions. Furthermore, we observed differences in the size spectra of SVs originating from distinct formation mechanisms, and constructed a map of SV hotspots formed by common mechanisms. Our analytical framework and SV map serves as a resource for sequencing-based association studies.Organismic and Evolutionary Biolog
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