1,652 research outputs found
Deuteron Structure and Form Factors: Using Inverse Potentials for S-waves
In this paper, we determine deuteron's static properties, low energy
scattering parameters, total cross-section and form factors from inverse S-wave
potentials constructed using Morse function. The scattering phase shifts (SPS)
at different lab energies are determined using phase function method. The model
parameters are optimised using both machine learning algorithm and traditional
data analysis by choosing mean squared error as cost function. The mean
absolute error between experimental and obtained SPS for states 3S1 and 1S0 are
found to be 0.35 and 0.70 respectively. The low energy scattering parameters
are matching well with expected values. The contribution due to S-waves SPS
towards total cross-section at various energies have been obtained and are
matching well with experimental values. The analytical ground state deuteron
wave-function (DWF) is obtained by utilizing the experimental value for
Quadrupole moment. Other static properties and form factors determined from
obtained DWF are found to be in close agreement with experimental ones.Comment: 29 pages, 5 Figures, 8 Table
Fishers in Post-harvest Fisheries Sector in India : An Assessment of Socio-economic Status
This paper presents the results of study carried out
during 2009-11, to assess literacy, health and income
status of fishers in India with reference to postharvest
sector which covered fishers in marketing
and processing. The study covered five states and
one union territory, covering 11 districts reaching
548 households. About 52.19% of the respondents
fell in the age group of 36-55. The average male- female ratio was 1.03 and 66.61% of the families
were in the small family category of 2-4 members.
It was observed that the literacy rates among fishers
in post-harvest sector in different states ranged from
63.74 to 95.81%. In general, the literacy rates were
comparable to the national average. Maternal and
child mortality were low in the sample studied and
the average birth weight of infants was 2.68 kg. The
average monthly income was Rs. 7027.45 with a
daily income of Rs. 234.25. About 44.70% of the
households had no savings and 47.81% of households
were in debt
Comparative secretome analysis of Colletotrichum falcatum identifies a cerato-platanin protein (EPL1) as a potential pathogen-associated molecular pattern (PAMP) inducing systemic resistance in sugarcane
Colletotrichum falcatum, an intriguing hemibiotrophic fungal pathogen causes the devastating red rot disease
of sugarcane. Repeated in vitro subculturing of C. falcatum under dark condition alters morphology and reduces
virulence of the culture. Hitherto, no information is available on this phenomenon at molecular level.
In this study, the in vitro secretome of C. falcatum cultured under light and dark conditions was analyzed
using 2-DE coupled with MALDI TOF/TOF MS. Comparative analysis identified nine differentially abundant
proteins. Among them, seven proteins were less abundant in the dark-cultured C. falcatum, wherein only
two protein species of a cerato-platanin protein called EPL1 (eliciting plant response-like protein) were found
to be highly abundant. Transcriptional expression of candidate high abundant proteins were profiled during
host-pathogen interaction using qRT-PCR. Comprehensively, this comparative secretome analysis identified
five putative effectors, two pathogenicity-related proteins and one pathogen-associated molecular pattern
(PAMP) of C. falcatum. Functional characterization of three distinct domains of the PAMP (EPL1) showed
that the major cerato-platanin domain (EPL1 Δ N1–92) is exclusively essential for inducing defense and hypersensitive
response (HR) in sugarcane and tobacco, respectively. Further, priming with EPL1 Δ N1–92 protein
induced systemic resistance and significantly suppressed the red rot disease severity in sugarcane.
Biological significance
Being the first secretomic investigation of C. falcatum, this study has identified five potential effectors,
two pathogenicity-related proteins and a PAMP. Although many reports have highlighted the influence of
light on pathogenicity, this study has established a direct link between light and expression of effectors, for
the first time. This study has presented the influence of a novel N-terminal domain of EPL1 in physical and
biological properties and established the functional role of major cerato-platanin domain of EPL1 as a potential
elicitor inducing systemic resistance in sugarcane. Comprehensively, the study has identified proteins that
putatively contribute to virulence of C. falcatum and for the first time, demonstrated the potential role of EPL1
in inducing PAMP-triggered immunity (PTI) in sugarcane
Screening of recombinant inbred lines for resistance to bacterial leaf blight pathotypes in rice (Oryza sativa L.)
In the present investigation 16 recombinant inbred lines (RIL’s) developed from the intra-specific cross between YH3 and AKDRMS 21-54 through Marker Assisted Pedigree Breeding Method were screened along with their parents and the checks, namely, BPT 5204, TN1 and Improved Samba Mahsuri (ISM) against IxoPt-20 pathotype at the ICAR-Indian Institute of Rice Research, Hyderabad during Rabi 2021-22 and a new pathotype of Xanthomonas oryzae pv. oryzae causing Bacterial Leaf Blight disease in rice at Regional Agricultural Research Station, Maruteru during Kharif 2022 to identify pathotype specific resistant sources. Morpho-Molecular screening was adopted to evaluate the recombinant inbred lines over two locations in the consecutive seasons of Rabi 2021-22 and Kharif 2022. Based on per cent diseased leaf area, the genotypes were scored and categorised as per the Standard Evaluation System (SES) scale provided by International Rice Research Institute (IRRI). The results revealed all 16 RIL’s to be either resistant (10) or moderately resistant (6) to IxoPt-20 pathotype. However, only five RIL’s were found to be resistant, while four RIL’s were moderately resistant for the new virulent pathotype. Seven RIL’s with resistant to moderately resistant reaction for IxoPt-20 pathotype, showed moderately susceptible reaction for the new virulent pathotype. Among the resistant RIL’s identified for each pathotype, BPT-1901-72-10-6, BPT-1901-108-4-1 and BPT-1901-111-3-2 were found to be uniformly resistant, while, BPT-1901-45-8-6 and BPT-1901-163-1-18 were uniformly moderately resistant to both IXoPt-20 and the new virulent pathotype at Hyderabad and Maruteru, respectively, indicating their potential as genetic stocks for development of new cultivars resistant to bacterial leaf blight disease
Inland Fisheries
The Indian fisheries date back to time immemorial, but, the saga of success has been
related to early post independence years. With renewed accent on optimum utilization of
country’s aquatic wealth for fisheries, the Government of India earmarked an ambitious
programme of mechanization and modernization through upgradation of technology during
early fifties. Therefore, Indian fisheries witnessed impressive transformation from a highly
traditional rural activity to technologically sound well developed industry.
Indian fisheries sector has growing steadily from the first plan onwards with the annual
fish production of 0.754 million tonnes during 1950-51 to the level of 9.57 million tonnes
during 2012-13
Rural Livelihood Security: Assessment of Fishers’ Social Status in India
The study has assessed the levels of literacy, health, income and livelihood security of the fisherfolk in
India by taking a sample of 4555 fisher households selected from six fisheries sectors (marine capture,
inland capture, mariculture, fresh water and brackish water aquaculture and marketing and processing) in
19 states of India. The primary data were collected using a pre-tested survey scheduled during January to
December, 2011. The age profile of the fisher household revealed the dominance of the young — onethird
with less than 35 years of age and more than half in 35 to 55 years age groups. The literacy rate has
been found quite high, about 80 per cent on overall basis. The health status of fisher households has been
assessed using birth weight of infants, incidence of mortality among mothers/children during birth,
administration of vaccines and health care facilities. It has been found that for a better livelihood security,
the respondent households have diversified their income sources beyond fisheries, the major ones being
labour, agriculture, and business and non-farm activities. The average monthly income across all sectors
was about ` 6500, in which about 73 per cent were from fisheries. For economic security, a considerable
number (around 40%) of fisher households had savings, the average amount being ` 4200 per fisher
household. The study has suggested that microfinance enterprises like self-help groups (SHGs) should
be promoted to help the fishers to address their problem of indebtedness. There exists huge potential of
imparting training to fishers, particularly the young and womenfolk, on fisheries management and
diversified enterprises including services delivery
Lessons from Innovative Institutions in the Marketing of Fish and Fishery Products in India §
Abstract This study has been conducted with the objective of understanding the process of innovative marketing models in the fisheries sector and to draw lessons from the success stories to upscale and replicate in a similar socio-politico-economic scenario in other parts of the country. It has been conducted to provide a better understanding of fish marketing by self-help groups (SHGs), producer associations, fisheries development corporations, fisherman cooperatives and private institutions in the southern states of India, namely Tamil Nadu, Kerala, Karnataka and Andhra Pradesh with the hypothesis that the institutional arrangements in the marketing of fish and fishery products reduce the transaction cost and improve the market access and its efficiency. The study has reported the primary activities of those institutions in the efficient fish marketing, such as inbound logistics, operations, outbound logistics, marketing and sales promotion and support activities like infrastructural facilities, technological backstopping, price information and procurement. Through these advantages, the fishermen have been found to achieve economies of scale, technological innovations, capacity development, linkage among activities, degree of vertical integration, timing of market entry, product differentiation, market access, credit access, etc. The study has suggested replication of such successful innovative institutions in marketing the fish and fishery products through appropriate policies and programmes. It has also suggested to promote institutions like SHGs, producer / fishermen associations, cooperatives, etc. and allow the entry of private agencies with appropriate regulatory mechanism to improve the efficiency of fish marketing in the country
Factors associated with preterm delivery and low birth weight: a study from rural Maharashtra, India
Background: Although preterm delivery and low birth weight (LBW) have been studied in India, findings may not be generalisable to rural areas such as the Marathwada region of Maharashtra state. There is limited information available on maternal and child health indicators from this region. We aimed to present some local estimates of preterm delivery and LBW in the Osmanabad district of Marathwada and assess available maternal risk factors.
Methods: The study used routinely collected data on all in-hospital births in the maternity department of Halo Medical Foundation’s hospital from 1 (st )January 2008 to 31 (st )December 2014. Multivariable logistic regression analysis provided odds ratios (OR) with 95% confidence intervals (CI) for preterm delivery and LBW according to each maternal risk factor.
Results: We analysed 655 live births, of which 6.1% were preterm deliveries. Of the full term births (N=615), 13.8% were LBW (<2.5 kilograms at birth). The odds of preterm delivery were three times higher (OR=3.23, 95% CI 1.36 to 7.65) and the odds of LBW were double (OR=2.03, 95% CI 1.14 to 3.60) among women <22 years of age compared with older women. The odds of both preterm delivery and LBW were reduced in multigravida compared with primigravida women regardless of age. Anaemia (Hb<11g/dl), which was prevalent in 91% of women tested, was not significantly related to these birth outcomes.
Conclusions: The odds of preterm delivery and LBW were much higher in mothers under 22 years of age in this rural Indian population. Future studies should explore other related risk factors and the reasons for poor birth outcomes in younger mothers in this population, to inform the design of appropriate public health policies that address this issue
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