688 research outputs found
Response of turmeric (Curcuma Zonga L.) to nitrogen in relation to application of farm yard manure and straw mulch
Experiments were conducted during kharif 1995 and 1996 at Ludhiana, India, to study the response of turmeric (Curcuma longa) to nitrogen in relation to application of farm yard manure and wheat straw mulch. The treatments consisted of two levels of mulch (0 and 6 tJha), four levels of farmyard manure, (0, 20, 40 and 60 tJha) and three levels of nitrogen (0, 60 and 120 kg/ha). The study revealed that application of wheat straw mulch improved growth and yield of turmeric significantly. Rhizome yield increased significantly with each increase in farm yard manure level during 1996 with a maximum yield of 365.4 q/ha with 60 tJha of farm yard manure. Nitrogen levels did not affect growth and yield of turmeric significantly.
 
Response of turmeric (Curcuma Zonga L.) to nitrogen in relation to application of farm yard manure and straw mulch
Experiments were conducted during kharif 1995 and 1996 at Ludhiana, India, to study the response of turmeric (Curcuma longa) to nitrogen in relation to application of farm yard manure and wheat straw mulch. The treatments consisted of two levels of mulch (0 and 6 tJha), four levels of farmyard manure, (0, 20, 40 and 60 tJha) and three levels of nitrogen (0, 60 and 120 kg/ha). The study revealed that application of wheat straw mulch improved growth and yield of turmeric significantly. Rhizome yield increased significantly with each increase in farm yard manure level during 1996 with a maximum yield of 365.4 q/ha with 60 tJha of farm yard manure. Nitrogen levels did not affect growth and yield of turmeric significantly.
 
Intelligent Optimization Systems for MaintenanceScheduling of Power Plant Generators
This paper presents a Genetic Algorithm (GA) and Ant-Colony (AC) optimization model for power plant generators’ maintenance scheduling. Maintenance scheduling of power plant generators is essential for ensuring the reliability and economic operation of a power system. Proper maintenance scheduling prolongs the shelf life of the generators and prevents unexpected failures. To reduce the cost and duration of generator maintenance, these models are built with various constants, fitness functions, and objective functions. The Analytical Hierarchy Process (AHP), a decision-making tool, is implemented to aid the researcher in prioritizing and re-ranking the maintenance activities from the most important to the least. The intelligent optimization models are developed using MATLAB and the developed intelligent algorithms are tested on a case study in a coal power plant located at minjung, Perak, Malaysia. The power plant is owned and operated by Tenaga Nasional Berhad (TNB), the electric utility company in peninsular Malaysia. The results show that GA outperforms ACO since it reduces maintenance costs by 39.78% and maintenance duration by 60%. The study demonstrates that the proposed optimization method is effective in reducing maintenance time and cost while also optimizing power plant operation
Characterization of the binding and neutralizing properties of monoclonal antibodies against JCV
Antibody-based immunity to JC polyomavirus (JCV) is not well understood and monoclonal Antibodies (mAbs) that functionally neutralize the infectivity of JCV have not been documented. (1). Virus Like Particles (VLP)-based ELISAs can detect JCV-binding antibodies that do not necessarily neutralize the infectivity of JCV. Therefore, functional neutralization-based serology will be needed to validate candidate JCV VLP vaccines and therapeutic McAbs. (2). The neutralizing activity of McAbs can be specific for particular genotypes and clinical strains. Hence, VLPs from multiple genotypes may be needed to formulate a vaccine that could protect against diverse JCV strains circulating in patients with progressive multifocal encephalopathy (PML)
Increasing the acceptability and rates of organ donation among minority ethnic groups: a programme of observational and evaluative research on Donation, Transplantation and Ethnicity (DonaTE)
Background:
Black, Asian and minority ethnic (BAME) groups have a high need for organ transplantation but deceased donation is low. This restricts the availability of well-matched organs and results in relatively long waiting times for transplantation, with increased mortality risks.
Objective:
To identify barriers to organ donor registration and family consent among the BAME population, and to develop and evaluate a training intervention to enhance communication with ethnic minority families and identify impacts on family consent.
Methods:
Three-phase programme comprising (1) community-based research involving two systematic reviews examining attitudes and barriers to organ donation and effective interventions followed by 22 focus groups with minority ethnic groups; (2) hospital-based research examining staff practices and influences on family consent through ethics discussion groups (EDGs) with staff, a study on intensive care units (ICUs) and interviews with bereaved ethnic minority families; and (3) development and evaluation of a training package to enhance cultural competence among ICU staff.
Setting:
Community focus group study in eight London boroughs with high prevalence of ethnic minority populations. Hospital studies at five NHS hospital trusts (three in London and two in Midlands).
Participants:
(1) Community studies: 228 focus group participants; (2) hospital studies: 35 nurses, 28 clinicians, 19 hospital chaplains, 25 members of local Organ Donation Committees, 17 bereaved family members; and (3) evaluation: 66 health professionals.
Data sources:
Focus groups with community residents, systematic reviews, qualitative interviews and observation in ICUs, EDGs with ICU staff, bereaved family interviews and questionnaires for trial evaluation.
Review methods:
Systematic review and narrative synthesis.
Results:
(1) Community studies: Organ Donor Register – different ethnic/faith and age groups were at varying points on the ‘pathway’ to organ donor registration, with large numbers lacking knowledge and remaining at a pre-contemplation stage. Key attitudinal barriers were uncertainties regarding religious permissibility, bodily concerns, lack of trust in health professionals and little priority given to registration, with the varying significance of these factors varying by ethnicity/faith and age. National campaigns focusing on ethnic minorities have had limited impact, whereas characteristics of effective educational interventions are being conducted in a familiar environment; addressing the groups’ particular concerns; delivery by trained members of the lay community; and providing immediate access to registration. Interventions are also required to target those at specific stages of the donation pathway. (2) Hospital studies: family consent to donation – many ICU staff, especially junior nurses, described a lack of confidence in communication and supporting ethnic minority families, often reflecting differences in emotional expression, faith and cultural beliefs, and language difficulties. The continuing high proportion of family donation discussions that take place without the collaboration of a specialist nurse for organ donation (SNOD) reflected consultants’ views of their own role in family consent to donation, a lack of trust in SNODs and uncertainties surrounding controlled donations after circulatory (or cardiac) death. Hospital chaplains differed in their involvement in ICUs, reflecting their availability/employment status, personal interests and the practices of ICU staff. (3) Evaluation: professional development package – a digital versatile disk-based training package was developed to promote confidence and skills in cross-cultural communication (available at: www.youtube.com/watch?v=ueaR6XYkeVM&feature=youtu.be). Initial evaluation produced positive feedback and significant affirmative attitudinal change but no significant difference in consent rate over the short follow-up period with requirements for longer-term evaluation.
Limitations:
Participants in the focus group study were mainly first-generation migrants of manual socioeconomic groups. It was not permitted to identify non-consenting families for interview with data regarding the consent process were therefore limited to consenting families.
Conclusions:
The research presents guidance for the effective targeting of donation campaigns focusing on minority ethnic groups and provides the first training package in cultural competence in the NHS.
Future work:
Greater evaluation is required of community interventions in the UK to enhance knowledge of effective practice and analysis of the experiences of non-consenting ethnic minority families.
Funding:
The National Institute for Health Research Programme Grants for Applied Research programme
Implications of texture 4 zero lepton mass matrices for U_{e3}
Lepton mass matrices similar to texture 4 zero quark mass matrices, known to
be quite successful in explaining the CKM phenomenology, have been considered
for finding the mixing matrix element U_{e3} (\equiv s_{13}) respecting the
CHOOZ constraint, with s_{12} and \Delta m_{12}^2 constrained by SNP and s_{23}
and \Delta m_{23}^2 constrained by ANP. Taking charged lepton mass matrix M_l
to be diagonal, we find that the ranges of s_{13} corresponding to different
SNP solutions very well include the corresponding values of s_{13} found by
Akhmedov et al. by considering neutrino mass matrix M_{\nu} with no texture
zeros. Considering M_l and M_{\nu} both to be real and non-diagonal, s_{13}
ranges for the four SNP solutions come out to be: \sim 0-0.19 (LMA),
0.038-0.093 (SMA), 0.042-0.095 (LOW), 0.038-0.096 (VO) which remain of the same
order when M_l and M_{\nu} are considered to be complex and non-diagonal.Comment: 13 pages, LaTe
Brazilian spring wheat germplasm as source of genetic variability.
As part of a Canada-Brazil germplasm exchange, 106 modern and ancient Brazilian spring wheat cultivars have been genotyped and phenotypically evaluated in Canada since 201
Unique Mass Texture for Quarks and Leptons
Texture specific quark mass matrices which are hermitian and hierarchical are
examined in detail . In the case of texture 6 zeros matrices, out of sixteen
possibilities examined by us, none is able to fit the low energy data (LED),
for example, , ,
, lies in the range (PDG). Similarly none of the 32 texture 5 zeros mass matrices considered
is able to reproduce LED. In particular, the latest data from LEP regarding
rules out all of them. In the texture 4
zeros case, we find that there is a unique texture structure for and
mass matrices which is able to fit the data.Comment: 12 pages, LaTeX,some changes in the references,minor changes in the
text,to appear in Phys Rev D(Rapid communications
Genetic characterization of leaf and stripe rust resistance in the Brazilian wheat cultivar toropi.
Leaf and stripe rust are major threats to wheat production worldwide. The effective, multiple rust resistances present in the Brazilian cultivar Toropi makes it an excellent choice for a genetic study of rust resistance. Testing of DNA from different seed lots of Toropi with 2,194 polymorphic 90K iSelect single nucleotide polymorphism markers identified significant genetic divergence, with as much as 35% dissimilarity between seed lots. As a result, further work was conducted with a single plant line derived from Toropi variant Toropi-6.4. A double haploid population with 168 lines derived from the cross Toropi-6.4 × Thatcher was phenotyped over multiple years and locations in Canada, New Zealand, and Kenya, with a total of seven field trials undertaken for leaf rust and nine for stripe rust. Genotyping with the 90K iSelect array, simple sequence repeat and Kompetitive allelespecific polymerase chain reaction markers resulted in a genetic map of 3,043 cM, containing 1,208 nonredundant markers. Significant quantitative trait loci (QTL) derived from Toropi-6.4 were identified in multiple environments on chromosomes 1B (QLr.crc-1BL/QYr.crc-1BL), 3B (QLr.crc3BS), 4B (QYr.crc-4BL), 5A (QLr.crc-5AL and QYr.crc-5AL), and 5D (QLr.crc-5DS). The QTL QLr.crc-1BL/QYr.crc-1BL colocated with the multi-rust resistance locus Lr46/Yr29, while the QTL QLr.crc-5DS located to the Lr78 locus previously found in a wheat backcross population derived from Toropi. Comparisons of QTL combinations showed QLr.crc-1BL to contribute a significantly enhanced leaf rust resistance when combined with QLr.crc-5AL or QLr.crc-5DS, more so than when QLr.crc-5AL and QLr.crc5DS were combined. A strong dditive effect was also seen when the stripe rust resistance QTL QYr.crc-1BL and QYr.crc-5AL were combined. Keywords: adult plant resistance, durable resistance, leaf rust, stripe rust, QTL, whea
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