103 research outputs found
Illegitimate Tasks, Negative Affectivity, and Organizational Citizenship Behavior among Private School Teachers: A Mediated–Moderated Model
Social sustainability has gained popularity over the last decade, with a growing body of research calling for researchers to focus on the personal-level determinants of employee satisfaction and well-being in the pursuit of social sustainability. By using negative affectivity as a mediating mechanism and gender and passive leadership as moderators, this study examines a novel sequential mediation–moderation model that explores the relationship between unreasonable tasks and teachers’ Organizational Citizenship Behavior (OCB). It employs the Conservation of Resources (COR) and Stress as Offense to Self (SOS) paradigms as a comprehensive theoretical framework for organizational stressors and organizational behavior. A total of 415 matched questionnaire responses were collected from private school teachers in the UAE. Confirmatory factor analysis (CFA) is conducted using AMOS 20, hierarchical linear modeling (HLM) is utilized to verify the causal and moderation hypotheses, and the resulting moderated mediated conceptual model is evaluated by employing Hayes PROCESS analysis. Results demonstrate the effects of illegitimate tasks on OCB are indirect and statistically significant and are mediated through negative affectivity. The cumulative effect of illegitimate tasks and negative affectivity on OCB is magnified by the moderating effects of passive leadership
DyNAVacS: an integrative tool for optimized DNA vaccine design
DNA vaccines have slowly emerged as keystones in preventive immunology due to their versatility in inducing both cell-mediated as well as humoral immune responses. The design of an efficient DNA vaccine, involves choice of a suitable expression vector, ensuring optimal expression by codon optimization, engineering CpG motifs for enhancing immune responses and providing additional sequence signals for efficient translation. DyNAVacS is a web-based tool created for rapid and easy design of DNA vaccines. It follows a step-wise design flow, which guides the user through the various sequential steps in the design of the vaccine. Further, it allows restriction enzyme mapping, design of primers spanning user specified sequences and provides information regarding the vectors currently used for generation of DNA vaccines. The web version uses Apache HTTP server. The interface was written in HTML and utilizes the Common Gateway Interface scripts written in PERL for functionality. DyNAVacS is an integrated tool consisting of user-friendly programs, which require minimal information from the user. The software is available free of cost, as a web based application at URL:
A brief note on portunid crab, Charybdis (Goniohellenus) omanensis septentrionalis from southwest coast of India
Crustacean Fisheries Division of ICAR-CMFRI, has
recently taken up a two year programme on
experimental trawling using fishing vessel F.V. Silver
Pompano. Samples were collected from different
bathymetric stations off Kochi and Alappuzha during
fortnightly intervals. Samples in the last fortnight
of August 2016, collected at a depth of 65m off
Alappuzha, included a good number of Charybdis
(Goniohellenus) smithii along with fishes and other
crustaceans. While segregating the samples of
swarming crab C. (G.) smithii, approximately 5 kg
of small sized Charybdis sp. was also collected. This
species was not included in the earlier samplings of
the programme as well as in the commercial fishery
landings. Hence detailed studies were carried out
and found the species is C.(G.) omanensis
septentrionalis, a new record in the Indian seas
Status of marine fish stock assessment in India and development of a sustainability index
India has a coastline of 8129 km. Landings by commercial fishing vessels takes
place at 1332 centres during day and night by 58,911 mechanized craft, 75,591 motorized
(with outboard engine) and 104,270 traditional craft (CMFRI, 2006). Marine fisheries are
an important source of food, employment and foreign exchange. About one million
people work directly in this sector, producing 3 million tonnes annually valued at about 3
billion US by exporting
fish and fishery products. India is among the top ten fish producing countries of the
world, contributing 3.5% to the total world marine fish production. Concerned about
the status of marine fish stocks in the Indian EEZ, the country has put in place
appropriate institutional mechanisms to monitor and forecast fishery yields for the last 25
year
Report of Xanthid crab Lophozozymous incisus (H. Mille Edwards, 1834) from the gut of Humpback red snapper Lutjanus gibbus
Two specimens of Lophozozymous incisus were collected from
the gut of Humpback red snapper Lutjanus gibbus caught in
hooks and lines off Cochin. L. incisus belongs to Family Xanthidae,
the largest family of brachyuran crabs. The crab has only been
reported from Angrias Bank, Maharashtra and Orissa coast. This
is the first report from the southern waters
Observations on the monsoon prawn fishery in Kerala
The ban on trawling in Kerala from June 15th to
July 30th coincides with the southwest monsoon.
During the period fishermen venture into the sea
with their traditional/motorised crafts and gears
such as thermocol boats (Alapuzha) and
Thanguvallom (Ernakulam and Thrissur). The latter
is operated with outboard engines and operate up
to 8 km from the shore. The thermocol boats fish
very near the shore (up to 3 km). The gear operated
are ring seines or thangu vala and gill nets. The
unique phenomenon in the monsoon season known
as mud-bank or ‘chakara’ is characterised by calm
areas close to the shore
Note on the shoal of Priacanthus hamrur caught during experimental trawling
During the experimental fishing conducted by F
V Silver pompano on 10th November 2016, a shoal of
bullseye Priacanthus hamrur, weighing 1.5 t, was
caught at 65-70 m depth off Alappuzha coast (90
25' 51'’ N, 750 58' 49'’ E). The shrimp trawl net with
cod end mesh size of 20 mm was operated for an hour and the total catch comprised of P. hamrur
(99%) and Uroteuthis (Photololigo) duvaucelii (1%)
Application of biological and fisheries attributes to assess the vulnerability and resilience of tropical marine fish species
Taking advantage of published data on life-history traits and short-term information on fishery parameters from 3132 records for 644 fish stocks along the coast of India, we calculated
resilience (R) and vulnerability (V). Further, we developed an Index of Resilience and Vulnerability (IRV) for 133 species of tropical finfishes, crustaceans, and molluscs. Using 7
resilience and 6 vulnerability attributes, two-dimensional scatter plots of the resilience and
vulnerability scores were generated and the Euclidean distance and angle from the origin to
each point were calculated to determine IRV and the effect of fishing on fish species. By
ranking the species, the top 10 highly resilient, highly vulnerable, and high-risk species (low
IRV) were identified. While small-sized species with fast growth rate and low trophic level
were among the highly resilient species, large predatory species such as sharks and barracudas were among the highly vulnerable and high-risk species. More than 100 of the 133
species were resilient-yet-vulnerable, and most crustaceans showed high resilience. Differences in IRV scores among species within the same family were discernible, indicating the
differences in the biological characteristics and response to fishing. Sensitivity analysis indicated that an abridged IRV with 6 attributes works similar to 13 attributes and can be used in
data-deficient situations. Comparison of R and V of IRV with other assessments showed different results because of divergences in the objectives, number and types of attributes, and
thresholds used. These assessments do not convey the same information and therefore
great care must be taken for reproducing these frameworks to other fisheries. The results of
IRV analysis can be useful for stock assessments and in developing effective management
measures in combination with other complementary information
Brief note on the ribbonfish Tentoriceps cristatus from the southwest coast of India
Tentoriceps cristatus (Klunzinger, 1884)
commonly called as crested hair tail is a monotypic
genus of cutlassfish family Trichiuridae. During the
experimental fishery survey conducted by FV Silver
pompano on 28 September 2016, specimens were
obtained in the trawl net operated off Alappuzha
(09º 21'N, 75º 56'E and 09º 21'N, 76º 18' E) at a depth
of 50- 60m along with other fishes and crustaceans
Indian Marine Fish Life Histories (INMARLH) database for determining resilience and vulnerability of tropical marine species
Taking advantage of published data on life-history traits and short-term information on fishery parameters from 3132 records for 644 fish stocks along the coast of India, we calculated resilience (R) and vulnerability (V). Further, we developed an Index of Resilience and Vulnerability (IRV) for 133 species of tropical finfishes, crustaceans, and molluscs. Using 7 resilience and 6 vulnerability attributes, two-dimensional scatter plots of the resilience and vulnerability scores were generated and the Euclidean distance and angle from the origin to each point were calculated to determine IRV and the effect of fishing on fish species. By ranking the species, the top 10 highly resilient, highly vulnerable, and high-risk species (low IRV) were identified. While small-sized species with fast growth rate and low trophic level were among the highly resilient species, large predatory species such as sharks and barracudas were among the highly vulnerable and high-risk species. More than 100 of the 133 species were resilient-yet-vulnerable, and most crustaceans showed high resilience. Differences in IRV scores among species within the same family were discernible, indicating the differences in the biological characteristics and response to fishing. Sensitivity analysis indicated that an abridged IRV with 6 attributes works similar to 13 attributes and can be used in data-deficient situations. Comparison of R and V of IRV with other assessments showed different results because of divergences in the objectives, number and types of attributes, and thresholds used. These assessments do not convey the same information and therefore great care must be taken for reproducing these frameworks to other fisheries. The results of IRV analysis can be useful for stock assessments and in developing effective management measures in combination with other complementary information
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