Interrelationship between the Alimentary Tract, Food and Feeding Habits of Plueronectiform Fishes of Southeast Coast of India

ABSTRACT: This paper examines the interrelationships between the morphology of the alimentary tract, the type of food and the feeding behaviour in 22 sps. of flatfishes obtained  from Cuddalore coast, Tamilnadu, India. 1051 specimens (Psettodidae-52, Bothidae-355, Pleuronectidae-37, Soleidae-364 and Cynoglossidae-243) were procured from trawls operated at a depth of 15-25 fathoms along the Cuddalore coast. To study the functional morphology of the alimentary canal of flatfishes, the nature of mouth, kind of teeth, gillrakers, number of pyloric caeca and the position of stomach, intestine and rectum were examined.  Frequency of occurrence methods were employed for their stomach contents analysis. The result of the present study related to the type of food with the morphology of the alimentary tract shows flatfishes obtained from Cuddalore coast categorised into 3 groups i.e. Fish feeders (Psettodidae and Bothidae type-I), Crustacean feeders (Bothidae type-II, Pleuronectidae and Cynoglossidae) and Polychaete-Mollusc feeders (Soleidae).  In Psettodidae and Bothidae type-I, the relative length of buccal cavity and stomach were much greater than in Bothidae type-II, Pleuronectidae and Cynoglossidae. However in Soleidae these two sections of the alimentary tract were less important.  For the intestine the reverse was evident whereas the rectum exhibits similarity in all faltfishes. Key words: Flatfish, Plueronectiform,  Feeding behaviour, Alimentary Tract ---Suganthi Devadason Marine Research Institute, Manonmaniam Sundaranar University, Tuticorin – 628 001, India ---Please Cite This Article As: S. Asta Lakshmi. 2010. Interrelationship between the Alimentary Tract, Food and Feeding Habits of Plueronectiform Fishes of Southeast Coast of India. J. Exp. Sci. 1(6):1-7.Â

The effect of residential urban greenness on allergic respiratory diseases in youth: A narrative review

Background: Environmental exposures across the life course may be a contributor to the increased worldwide prevalence of respiratory and allergic diseases occurring in the last decades. Asthma and rhinoconjunctivitis especially contribute to the global burden of disease. Greenness has been suggested to have beneficial effects in terms of reduction of occurrence of allergic respiratory diseases. However, the available evidence of a relationship between urban greenness and childhood health outcomes is not yet conclusive. The current review aimed at investigating the current state of evidence, exploring the relationship between children's exposure to residential urban greenness and development of allergic respiratory diseases, jointly considering health outcomes and study design. Methods: The search strategy was designed to identify studies linking urban greenness exposure to asthma, rhinoconjunctivitis, and lung function in children and adolescents. This was a narrative review of literature following PRISMA guidelines performed using electronic search in databases of PubMed and Embase (Ovid) from the date of inception to December 2018. Results: Our search strategy identified 2315 articles; after exclusion of duplicates (n = 701), 1614 articles were screened. Following review of titles and abstracts, 162 articles were identified as potentially eligible. Of these, 148 were excluded following full-text evaluation, and 14 were included in this review. Different methods for assessing greenness exposure were found; the most used was Normalized Difference Vegetation Index. Asthma, wheezing, bronchitis, rhinoconjunctivitis, allergic symptoms, lung function, and allergic sensitization were the outcomes assessed in the identified studies; among them, asthma was the one most frequently investigated. Conclusions: The present review showed inconsistencies in the results mainly due to differences in study design, population, exposure assessment, geographic region, and ascertainment of outcome. Overall, there is a suggestion of an association between urban greenness in early life and the occurrence of allergic respiratory diseases during childhood, although the evidence is still inconsistent. It is therefore hard to draw a conclusive interpretation, so that the understanding of the impact of greenness on allergic respiratory diseases in children and adolescents remains difficult

RELASI JEJARING AKTOR MASYARAKAT SUKU BUGIS SOPPENG DALAM TRADISI MENDIRIKAN RUMAH (MAPPATETTONG BOLA)

Every process and stage in phase of constructing of Indonesia’s vernacular architecture is required the role and contribution of individual or several actors so that procession of house construction can be built due to purposes. According to traditions and beliefs of the Bugis community, there are several actors who have different roles and responsibilities during the process of establishing a Buginese-house. This research aims to explore the influence of the actors’ role who are involved in the process of constructing a traditional Bugis house. Correlation and impact of one actor's involvement with other actors will be reviewed based on the perspective of the Actor Network Theory (ANT) by using descriptive qualitative method.  The results revealed that there are 4 stages in the process of building Buginese-house namely the process of constructing a house frame (Mattibang Bola), the process of marking the center of the house (possi bola), the ritual of reading thanksgiving prayer (barzanji), and the process of establishing a house frame (Mappatettong Bola). Founded, Sanro Bola and Panre Bola, namely traditional leaders who have a mandate in the tradition of building houses, are actors who act as controlling actors and are very influential in maintaining the stability of a network in the process of building Buginese-house. Learning from the tradition of building a Buginese-house, the existence of traditional leaders is important, because it has a tradition-based on knowledge base, and this has become a mandate in regulating other actors in working

Coastal Issues and Management Strategy for Sagar Island in Bay of Bengal

Sagar Island, situated in the east coast of India is one of the biggest deltaic Islands in Sundarban group. This Island is unique with its natural ecosystem and has a potential for becoming a prime eco-tourism destination. The natural and man-made problems affect the quality of environment and life of people in Sagar Island. This paper examines the severe coastal issues of Sagar Island that include coastal erosion, threat to biodiversity, natural hazards, tourism and livelihood insecurity of local communities.  It recommends adoption of a management strategy by implementing the Integrated Coastal Zone Management (ICZM) in order to mitigate these coastal issues and to ensure sustainable development of the coastal environment of Sagar Island in Sundarban Biosphere Reserve

Ginzburg-Landau theory of crystalline anisotropy for bcc-liquid interfaces

The weak anisotropy of the interfacial free-energy $\gamma$ is a crucial parameter influencing dendritic crystal growth morphologies in systems with atomically rough solid-liquid interfaces. The physical origin and quantitative prediction of this anisotropy are investigated for body-centered-cubic (bcc) forming systems using a Ginzburg-Landau theory where the order parameters are the amplitudes of density waves corresponding to principal reciprocal lattice vectors. We find that this theory predicts the correct sign, $\gamma_{100}>\gamma_{110}$, and magnitude, $(\gamma_{100}-\gamma_{110}) / (\gamma_{100}+\gamma_{110})\approx 1$, of this anisotropy in good agreement with the results of MD simulations for Fe. The results show that the directional dependence of the rate of spatial decay of solid density waves into the liquid, imposed by the crystal structure, is a main determinant of anisotropy. This directional dependence is validated by MD computations of density wave profiles for different reciprocal lattice vectors for $\{110\}$ crystal faces. Our results are contrasted with the prediction of the reverse ordering $\gamma_{100}<\gamma_{110}$ from an earlier formulation of Ginzburg-Landau theory [Shih \emph{et al.}, Phys. Rev. A {\bf 35}, 2611 (1987)].Comment: 9 pages, 5 figure

States prepared by decay

We consider the time evolution of a discrete state embedded in a continuum. Results from scattering theory can be utilized to solve the initial value problem and discuss the system as a model of wave packet preparation. Extensive use is made of the analytic properties of the propagators, and simple model systems are evaluated to illustrate the argument. We verify the exponential appearence of the continuum state and its propagation as a localized wave packet.Comment: 22 pages, Latex2.09, 6 Postscript figures embedded using psfig, see also http://www.physics.helsinki.fi/~kasuomin/ To appear in a Special Issue of Journal of Modern Optics (1997

Capillary force-induced structural instability in liquid infiltrated elastic circular tubes

The capillary-induced structural instability of an elastic circular tube partially filled by a liquid is studied by combining theoretical analysis and molecular dynamics simulations. The analysis shows that, associated with the instability, there is a well-defined length scale (elasto-capillary length), which exhibits a scaling relationship with the characteristic length of the tube, regardless of the interaction details. We validate this scaling relationship for a carbon nanotube partially filled by liquid iron. The capillary-induced structural transformation could have potential applications for nano-devices