687 research outputs found
Seismic Reflection Studies in Long Valley Caldera, Califomia
This is the published version, also available here: http://dx.doi.org/10.1029/90JB02401.Seismic reflection studies in Long Valley caldera, California, indicate that seismic methods may be successfully employed to image certain types of features in young silicic caldera environments. However, near-surface geological conditions within these environments severely test the seismic reflection method. Data quality are degraded by static, reverberation, and band-limiting problems due to these near-surface conditions. In Long Valley, seismic reflection and refraction methods were used to image both the shallow and deep geothermal aquifers within the area. The deep geothermal aquifer, the welded Bishop Tuff, was imaged as a fairly continuous reflector across the western moat of the caldera. Near-surface refraction information indicates that there may be a buried paleochannel system or horst and graben system that could control the shallow geothermal flow pattern. High-amplitude events observed in a wide-angle survey were originally interpreted as reflections from a contemporary magma body. However, a migration of the events utilizing the new generalized cellular migration algorithm indicates that these events are probably reflections from the faults of the caldera ring fracture system. The reflections may be caused by the high acoustic impedance contrast associated with the juxtaposition of relatively low-velocity, low-density, caldera fill against the granite plutons and metasediments of the Sierran basement along this fault system
Bank Erosion Study
The Bank Erosion Study was designed to evaluate eroding fast land bank shorelines as contributors of sand, silt and clay and total nitrogen and total phosphorous introduced into the Chesapeake Bay estuarine system. In addition, the extent and effectiveness of erosion control measures were evaluated for selected shoreline reaches. Fastland banks are the uplands along the shorelines that are composed of semi-consolidated sediments. This study evaluates about 2000 miles of primary tidal shoreline in the Virginia portion of the Chesapeake Bay estuarine system for areas of fast land bank erosion. Primary tidal shorelines are those along the main stem of the Chesapeake Bay and the major tributary estuaries. Approximately 383 miles of shoreline comprising 208 shore reaches are included in. the final analysis. These reaches are responsible for 61% of the annual historic sediment volume loading from tidal shoreline erosion. Sediments for selected representative shore reaches were sampled and analyzed for sand, silt, and clay. Volumetric rates of sediment loading for the study shorelines were determined from historical data. Also, the condition of the shorelines were evaluated by analyzing oblique aerial imagery for 1985 and 1990. From the imagery analysis the extent of defensive shoreline structures (i.e. bulkheads, seawall and revetments) and whether the bank was stable or not was determined. Sediment volume loading was considered to be halted where defensive shoreline structures were installed. There was an increase in shoreline defenses of 18% by 1990. This resulted in an annual reduction of sediment loading by 5%. Total nitrogen and total phosphorous loading from eroding fast land bank sediments have been determined to be significant. This study utilized the results of Ibison et al., 1990 which provided average nutrient loading rates for total nitrogen and total phosphorous from eroded fastland bank sediments. The consequent estimated annual reduction in nutrient loading by defended shorelines for 1990 is about 5% for total nitrogen and total phosphorous. Nineteen reaches have been identified as significant contributors of eroding bank sediments and will require further assessment as to the impacts of nutrient loading
High seed protein percentage in chickpea. II. Comparative nitrogen accumulation patterns
In low-protein Annigeri, leaf nitrogen contents progressively declined after flowering but seed nitrogen contents increased. In high-protein T1A, leaf nitrogen contents increased up to 30 days after flowering but translocation to seeds was slower and seed nitrogen contents were much lower after 70 days than in Annigeri. Similar patterns were observed for soluble carbohydrates and starch. The seed yield of T1A was only one third of that of Annigeri. Data indicated that source was not limiting
Breeding chickpeas resistant to disease
,iVork is in progress at ICRISAT to identify and incorporate resistance to
Fusariuni wilt, Ascschyta blight, Botrytis g:e/ rnsuld and stunt, which are considered
to be most damaging to the chickpea crop. Fusariun wilt resistance has
been incorporated into high y;eld:n3 tlcsi and knhirli backgrounds, using donors
identified as highly resistant at ICRIS4T and other cjnters anl screening breed-
Ing materials in wilt;lc'c plots. M )re recf:nt;y, w3 have obtained evidence of
complenientarity between recessive genes csnfxring rd;ijta2ca injicating the
possibility of obtaining highly resistant segregants from crossbs among moderately
susceptible genotypes, thus making available a much wider range of backgrounds
than hithxto rele3sed. The inheritance of the other diseases is
not well ,understood. Ascochyta blight resistance is reported to be monogenic
and either dominant or rezessivz; manogenic inhetitanse m3y also
occur for chickpea stunt. Crosses have been made to incorporate resistance
to the other diseases into acla,3ted bazkgiounds and segrdaating p~pulations
screened in field nurseries in India and elsewhere
Associations among Fusarium wilt resistance, flower colour and number of flowers per fruiting node in chickpeas (Cicer arietinum L.)
Corolla colour in chickpea (Cicer arietinum L.) is white or various shades of pink or blue (Smithson, Thompson & Summerfield, 1985). Normally, a leaf axil subtends a single peduncle bearing a single flower but ‘double-flowered’ types, where a pro-portion of the peduncles subtends two flowers, are not uncommon and produce 6–11 % more seed yield than the normal single-flowered type..
Medicines adherence: Involving patients in decisions about prescribed medicines and supporting adherence
It is thought that between a third and a half of all medicines1
There are many causes of non-adherence but they fall into two overlapping categories: intentional and unintentional. Unintentional non-adherence occurs when the patient wants to follow the agreed treatment but is prevented from doing so by barriers that are beyond their control. Examples include poor recall or difficulties in understanding the instructions, problems with using the treatment, inability to pay for the treatment, or simply forgetting to take it. prescribed for long-term conditions are not taken as recommended. If the prescription is appropriate, then this may represent a loss to patients, the healthcare system and society. The costs are both personal and economic. Adherence presumes an agreement between prescriber and patient about the prescriber’s recommendations. Adherence to medicines is defined as the extent to which the patient’s action matches the agreed recommendations. Non-adherence may limit the benefits of medicines, resulting in lack of improvement, or deterioration, in health. The economic costs are not limited to wasted medicines but also include the knock-on costs arising from increased demands for healthcare if health deteriorates. Non-adherence should not be seen as the patient’s problem. It represents a fundamental limitation in the delivery of healthcare, often because of a failure to fully agree the prescription in the first place or to identify and provide the support that patients need later on. Addressing non-adherence is not about getting patients to take more medicines per se. Rather, it starts with an exploration of patients’ perspectives of medicines and the reasons why they may not want or are unable to use them. Healthcare professionals have a duty to help patients make informed decisions about treatment and use appropriately prescribed medicines to best effec
The independent group looks at London's west end
In the early 1950s, British culture was dominated by welfare-state visions of urban reconstruction. These projections of a stable civic society were premised on a particular way of looking at and reading the metropolitan environment. At odds with this project, the Independent Group's discussions and collaborative work developed an alternative urban semiology, which found the city to be already rich in visual resources for fashioning a more profound form of social democracy. Soon, this critical engagement would develop in different directions, represented here by Lawrence Alloway's commentary on Piccadilly Circus in his essay 'City Notes' and the London footage inserted by John McHale into his film for the Smithsons' Berlin Hauptstadt project (both 1959). By the end of the 1950s, members of the erstwhile Independent Group had produced two contrasting critical accounts of how the metropolitan centre should be looked at, which challenged the strictures of post-war reconstruction in distinct and conflicting ways. © The Author(s), 2013
Inheritance of seed size in cowpea (Vigna unguiculata (L.) Walp.)
The inheritance of seed weight in cowpea was examined in a field planting of the parents, reciprocal F,s,
F2 s and backcrosses to both parents of a cross between TVu 1977-OD (small seeded) and ACC 70002
(large) .
Seed weight was inherited quantitatively and small seed was partially domiminant to large seed size .
Gene action was predominantly additive but dominance and additive x additive epistatic effects were
also significant.
Broad and narrow sense heritabilities were 85 .1 ± 5 .3% and 75 .4 ± 18 .6% respectively . The minimum
number of loci involved in the inheritance of seed size was eight, and each gene pair contributed up to
1 .02 g increase to seed weight . The estimate of genetic advance from F 2 to F 3 generations with 5% selection
intensity was 3 .58 g
Do UK universities communicate their brands effectively through their websites?
This paper attempts to explore the effectiveness of UK universities’ websites. The area of branding in higher education has received increasing academic investigation, but little work has researched how universities demonstrate their brand promises through their websites. The quest to differentiate through branding can be challenging in the university context, however. It is argued that those institutions that have a strong distinctive image will be in a better position to face a changing future. Employing a multistage methodology, the web pages of twenty UK universities were investigated by using a combination of content and multivariable analysis. Results indicated ‘traditional values’ such as teaching and research were often well communicated in terms of online brand but ‘emotional values’ like social responsibility and the universities’ environments were less consistently communicated, despite their increased topicality. It is therefore suggested that emotional values may offer a basis for possible future online differentiation
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