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 National Academy Science LettersJournal Prestige (SJR): 0.189 Citation Impact (citeScore): 1Number of Followers: 5      Hybrid journal (It can contain Open Access articles) ISSN (Print) 0250-541X - ISSN (Online) 2250-1754 Published by Springer-Verlag  [2351 journals]
• Rutile Mineral Chemistry as a Guide to Provenance of Red Sediments and
of India
• Abstract: Rutile is the most stable and widely distributed TiO2 polymorph in rocks of low- to high-grade metamorphic facies and is also an accessory mineral in igneous rocks. Rutile is commonly available in modern to ancient placer mineral deposits in the coastal sediments. Mineral chemistry of rutile from red sediments and modern sands along Bhimunipatnam–Konada coast were used in the present study to know its provenance. Iron (Fe), chromium (Cr), niobium (Nb) content and their distribution pattern in rutile and also their relationships with aluminum (Al) and magnesium (Mg) concentrations provide information on its provenance. These study reveals that the Fe–Cr and Cr–Nb systematics indicates majority of rutiles were derived from metapelitic rocks mainly khondalites and leptynites of the Eastern Ghats Granulite Belt (EGGB) and minor contribution is from magmatic charnockites, pegmatites and granites. The Al and Mg behavioral pattern in rutile from both zones clearly depicts that the most of the rutiles are derived from crustal rocks. The rutile contribution to late quaternary red sediments and modern coastal sands is also from same provenance.
PubDate: 2019-06-14

• Antagonistic Activity of Isolated Root Endophytic Freshwater Fungus
Anguillospora Longissima Against Pathogenic Fungi
• Abstract: Freshwater fungus Anguillospora longissima was recovered as root endophytic fungus from the pteridophytic plant Equisetum sp., growing in riparian areas of Nainital, Kumaun Himalaya, and evaluated through well diffusion and dual culture methods. The isolated endophytic fungus was found a potent inhibitor for test pathogenic fungi. Maximum inhibition by the isolated endophytic fungus was showed against pathogenic fungus Tilletia indica (79.76%), while minimum was recorded against Fusarium oxysporum (35.73%), in dual culture method. Further, in well diffusion method, pathogenic fungi Colletotrichum falcatum and Pyricularia oryzae were found maximum (62.96%) and minimum (17.85%) inhibited fungi, respectively, by the isolated fungus. In the present investigation, the used root endophytic fungus A. longissima was found potent to produce some antifungal substances that inhibited the growth of all test pathogenic fungi.
PubDate: 2019-06-08

• Correction to: An Example of a Right Loop Admitting Only Discrete
Topologization
• Abstract: Being motivated by Suvorov and Kryuchkov (Sib Mat Zh 17(2):471–473, 1976) and Suvorov (Sib Mat Zh 32(5):193, 1991), an example of a right loop admitting only discrete topologization is presented in this paper.
PubDate: 2019-06-07

• First Report on Infection of Argulus quadristriatus (Arthropoda:
Crustacea: Branchiura) on Marine Fish Cobia in Brood Stock Pond Culture
• Abstract: A total of 30 specimens of fish cobia Rachycentron canadum (Total Length = 45–120 cm, Weight = 3.0–25 kg) were stocked at the density of 1 kg/m3 in the polythene lined earthen pond. After 3 months of stocking, fish cobia was found with infection of ectoparasites. Then fishes were sampled at fortnight interval to find the percentage distribution of ectoparasites in different parts of the body for a year and also any pathological symptoms. Identification of the parasite was made through light and electron microscopies. The parasite was identified as Argulus quadristriatus Devaraj and Ameer Hamsa, 1977 (Crustacea: Branchiura: Argulidae) commonly called as fish lice. The maximum distribution of pathogenic argulid was observed on the head and operculum of cobia and was found high in summer months from April to June. Pathological symptoms were observed on cobia as erratic swimming, rubbing against substrate in the pond and lesions of epithelial tissues on the infected regions. It must be due to continuous rupturing and feeding of argulids on the skin of cobia using its powerful antennae. Scanning electron micrographs revealed some important morphological features of A. quadristriatus. This is a first report of A. quadristriatus infection on cobia reared in a land-based pond ecosystem.
PubDate: 2019-06-01

• Insect Entrapment by Plants in Kodaikanal Wildlife Sanctuary, India
• Abstract: The present study focused on plant–insect interactions between arthropod insects and herbs at shola forest floor such as Desmodium uncinatum (Jacq.) DC.—Fabaceae and Cerastium indicum (L.) Wight & Arn.—Caryophyllaceae. The morphological characters such as ciliate, puberulous and villous nature of plants will lead a greater role to adopt the climatic conditions. Findings of the present study revealed the trichomes of some plants are menace to pollinating agents.
PubDate: 2019-06-01

• Design of Dual-Band Antenna for 2.45 and 5.8 GHz ISM Band
• Abstract: A dual-band microstrip rectangular patch antenna for WLAN in vehicular communication applications is proposed. The aim of this research is to achieve smaller size, better bandwidth and good radiation capability. The designed antenna has a frequency bandwidth of 184 MHZ with the upper cut-off frequency of 2.4953 GHz and the lower cut-off frequency of 2.3113 GHz which are the operating frequencies for IEEE 802.11b/g/n WLAN applications and IEEE 802.15.4 ZigBee application. The second resonance is at 5.8 GHz frequency with a bandwidth of (5.850–5.925 GHz) the 802.11p standard intended for use in vehicular communication systems and for the mobile operation. The rectangular patch with Inset Line Feed technique is used to design the antennas. First, the design parameters for single element of rectangular patch antenna for 5.8 GHz are calculated from the design equations, and then, the design is extended to operate in dual band using the slots at the ground plane and two cylinders at the corners of the slot to obtain good radiation characteristics. The simulation of the proposed antenna has been carried out in computer simulation technology software, and the results are evaluated.
PubDate: 2019-06-01

• Evolution of Optical Band Gap and Related Properties in Ni 1−x Co x
O Nanoparticles
• Abstract: Ni1−xCoxO Nanoparticles with x varying from 0 to 0.05 were synthesized by co-precipitation method. The effect of Co concentration on the optical band gap and related properties of NiO nanoparticles were studied by UV–visible spectroscopy. UV–visible characterization of these samples indicated that the band gap of NiO decreased from 3.65 to 3.38 eV with increasing Co concentration from 0 to 5% in NiO. It has been reported that the band gap of ternary compounds show band gap bowing with composition instead of linear variation. In our case it is found to be ~ 5.28 ± 0.5 eV. The refractive index and electron polarizability with Co doping concentration in NiO is calculated from the band gap. Both the parameters found to increase with increasing Co concentration in NiO. This study suggests the usefulness of these materials for optoelectronic devices.
PubDate: 2019-06-01

• A New Soil Testing Programme for the Evaluation of Intensity and Quantity
Factors of Iron
• Abstract: Deficiency of Fe in rice mainly occurs under upland condition, particularly in alkaline and calcareous soils. The plants respond directly to changes in the activities of ions in the soil solution. Baker soil test (BST) is a new approach to soil testing which not simply determine the concentrate bioavailability but also provides the activity of an ion. A greenhouse experiment was conducted with special reference to iron for relating the data with content of efficient and inefficient cultivars of aerobically grown rice for iron availability. Alkaline, calcareous, acid and lime-treated soils could be rated as normal in respect of labile Fe status. Intensity parameter of Fe (pFe) for alkaline and calcareous was rated to be low, while it was normal for other two soils. Comparison of pFe values of Fe(III) in different soils with plant Fe content reveals the positive impact of intensity parameter of Fe(III) in soil is reflected well in plant Fe content data in both the rice cultivars. Similar were the relationships of intensity parameter of Fe with grain and straw yield of rice. BST, particularly intensity parameter of Fe, can be a good index of availability of Fe in soils.
PubDate: 2019-06-01

• Desiccation Response of Seeds of Himalayan Oak, Quercus floribunda Lindl.
ex A. Camus
• Abstract: Quercus floribunda, an important western Himalayan oak, has a great ecological importance. As seeds are sensitive to moisture loss, seed maturation and germination is, therefore, synchronized with the commencement of monsoon rainfall. A delay in monsoon can thus drastically inhibit the recruitment of seedlings. However, the level of such sensitivity of seeds towards desiccation in Q. floribunda is not earlier studied in the region. In view of this gap, effects of desiccation on seed germination of Q. floribunda were examined across different moisture levels. Datasets on seed morphological characteristics, moisture content and seed germinability were recorded. Results indicated that seed likelihood sensitivity to desiccation (P) was much higher (0.84) in Q. floribunda as compared to suggested minimum value of (0.5) beyond which seeds are considered desiccation sensitive. The species is thus characterized as desiccation sensitive that significantly loses per cent germination with drying period. It is recommended that the seeds of Q. floribunda should be sown within 7 days, when the seed moisture content remains at critical level of 34%. These results have implications in forestry practice, conservation and management for coping with practical problems of storing Q. floribunda seeds.
PubDate: 2019-06-01

• An Intelligent Risk Prediction System for Breast Cancer Using Fuzzy
Temporal Rules
• Abstract: Online prediction of risk on breast cancer is a challenging task in the area of health care during the past decade. Since the existing statistical and data mining methods have limitations with respect to the prediction of breast cancer, there is a need for proposing more effective predictive models which can predict the breast cancer more effectively. In this paper, we propose a new intelligent online risk prediction model for predicting the breast cancer using fuzzy temporal rules more accurately. Moreover, this intelligent system determines the contributing attributes from the dataset using intelligent fuzzy temporal rules and also performs prediction by applying fuzzy rule-based classification with temporal constraints. Moreover, the rules are validated using a domain expert and the experiments conducted in this work using questionnaire, rule-based classification and consultation with domain expert have proved that the proposed system provides more accurate results for risk prediction than the other existing systems.
PubDate: 2019-06-01

• Evaluation of Natural Carotenoid Sources from Rosa hybrida Varieties on
Growth and Pigmentation of Goldfish ( Carassius auratus L.)
• Abstract: The commercial value of goldfish (Carassius auratus) is determined by its attractive colour. Fish cannot synthesize carotenoids, and hence, natural sources of carotenoids are supplemented in the diet. In this study, rose petal meal from four varieties (Jubileums, Brisbane blush, Double delight and Restless) was added in three concentrations (2, 4 and 6 gkg−1) to the formulated control feed and fed to the goldfish, for 45 days. The results revealed that dietary carotenoids had a significant effect (P < 0.001) on growth and pigmentation of goldfish. Increase in length and pigmentation was proportionate to concentration of supplements, 6 gkg−1 being most effective. The maximum increase in weight was observed at 4 gkg−1 concentration of supplements, with a limiting effect at higher concentrations. Research on the use of natural sources of carotenoids to influence growth and colouration is a significant development for the ornamental fisheries sector, to enhance quality and market value.
PubDate: 2019-06-01

• Taxonomic Analyses Suggest a New Record of Lygodium japonicum
(Lygodiaceae) from Terai Regions of Uttar Pradesh, India
• Abstract: Lygodium japonicum (Thunb.) Sw., a climbing fern belonging to family Lygodiaceae has been encountered from Sonaripur forests of Dudhwa National Park in terai regions of Uttar Pradesh. Discovery of this species from above forest is a new record and addition to the pteridophytic flora of terai regions of Uttar Pradesh, including entire gangetic plain. Present contribution provides a detailed taxonomic analyses, illustrations, photographs, examined specimens citation, ecology, distribution and habit of the species. Distinctive taxonomic attributes including rhizomatous hairs, winged rachis and petiole, non-articulated pinnae, crenulated pinnules, pubescent rachis, mid-veins, veins and lamina has been largely measured to augment some additional taxonomic characters. Discussion on distinguished taxonomic attributes and plasticity with allied species has been provided. An assertion on its extended range of distribution and new record in terai regions of India is also conferred.
PubDate: 2019-06-01

• Determinants of Inequality in Dairy Development of India
• Abstract: Dairy sector plays an integral role in nutritional security as well as economic prosperity. The present study was designed with an attempt to identify the determinants of the inequality in Indian dairy development. Coefficient of variation, Gini coefficient, principal component analysis and Duncan’s multiple range test were used to quantify inequalities and its determinants among the highly, moderately and least dairy progressive states by using 20 dairy development indicators. It was found that Gini coefficients for the three strata indicated the level of inequality in dairy development but in varying magnitude. The study also depicts that the average per day milk yield of crossbred cattle, indigenous cattle and buffaloes; number of AI done; milk procurement through cooperatives; capacity of milk processing and surface road length found to be significantly different among the three regions. The study advocates for proper planning and prioritization of indicators that determine the regional development to reduce the variability and regional imbalances for additional milk production.
PubDate: 2019-06-01

• Acronicta rumicis (Linnaeus, 1758), Emerging Pest of Apple Plantation in
Kashmir Valley
• Abstract: The larvae of the moth Acronicta rumicis Linnaeus commonly known as Knot grass moth inflict considerable damage to new apple plantation in the Kashmir region. Immature stages of the pest defoliate apical buds and result in stunted growth of the plant. Seasonal occurrence and severity of the pest from Kashmir Valley is detailed.
PubDate: 2019-06-01

• In Vitro Multiple Shoot Induction and Plant Regeneration from Male Ephedra
foliata : A Potential Medicinal Gymnosperm
• Abstract: Ephedra foliata Boiss. Ex. C.A. Mey, known as soma plant according to ancient Indian Ayurvedic system. It is known for its potential to cure many diseases. Review of literature revealed that E. foliata contains traces of alkaloids responsible for its therapeutic activity. In present study effect of different concentrations of plant growth regulator on nodal sector explants was checked for multiple shoot production. Maximum numbers of shoots were observed on Kinetin (2.5 mg/l) whereas, Kinetin (2.5 mg/l) with Indole acetic acid (2.5 mg/l) induced 9.04 ± 0.8 shoots in 22.46 ± 0.57 days and percentage of explants that showed response was more than any other combination. Out of the two plant growth regulators used for root induction from in vitro grown shoots 1-napthaleneacetic acid showed better response than indole-3-acetic acid.
PubDate: 2019-06-01

• Construction of Right Gyrogroups
• Abstract: Attempts have been made to introduce notion of class assigned functions k for a given group G and observed that it determines a right gyrogroup $$(G, o_k)$$ . It is also observes that $$(G, o_k)$$ will be a group if and only if G is a nilpotent group of class 2 and will be a gyrogroup for a nilpotent group of class 3, where $$k(x)=1$$ for all $$x\in G\setminus \{1\}$$ .
PubDate: 2019-06-01

• Some New Results on the Rainbow Neighbourhood Number of Graphs
• Abstract: A rainbow neighbourhood of a graph G is the closed neighbourhood N[v] of a vertex $$v \in V(G)$$ which contains at least one coloured vertex of each colour in the chromatic colouring $${\mathscr {C}}$$ of G. Let G be a graph with a chromatic colouring $${\mathscr {C}}$$ defined on it. The number of vertices in G yielding rainbow neighbourhoods is called the rainbow neighbourhood number of the graph G, denoted by $$r_\chi (G)$$ . Rainbow neighbourhood number of the complements and products of certain fundamental graph classes are discussed in this paper.
PubDate: 2019-06-01

• New record of the starry flying gurnard, Dactyloptena peterseni
(Scorpaeniformes; Dactylopteridae); from Wadge Bank, Southwest coast of
India
• Abstract: Five specimens of dactylopterids measuring 220.5–320.0 mm standard length caught commercial trawler fishing in 80–120 m deep waters of Wadge Bank off Kanyakumari coast (8.02 N, 76.80 E) were collected from the landing centre at Jeppiaar fishing harbour, Muttom, Southwest coast of India. The specimens were identified as Dactyloptena peterseni (Nystrom, 1887) on the basis of morphometric measurements and the key identification character like absence of second free spine between the occipital and the first dorsal spine. The occurrence of the species suggests that the extended distribution of D. peterseni to Southwest coast of India. The detailed morphometric and meristic characters are described and discussed in this paper. Molecular identification was done by using partial sequence of mitochondrial cytochrome oxidase sub-unit I gene for confirmation of the species.
PubDate: 2019-06-01

• Effect of Probiotic Supplementation on Growth of Carp Fingerlings
• Abstract: A probiotic product (PLANKTO PLUS) consisting adequate colony-forming units of beneficial bacteria was experimented for 90 days to evaluate the effect of growth of carp fingerlings. The selected probiotic was applied regularly @ 2 ml/tank (water volume 4 m3) to the carp fingerlings kept in fibreglass-reinforced plastic tanks under five different treatments, i.e. control (without probiotics), once in a day, weekly, fortnightly and monthly with two replicates. Tanks were stocked with Hypophthalmichthys molitrix, Labeo rohita and Cirrhinus mrigala @ 10 fingerlings/m3 in the ratio of 4:3:3, and water quality parameters were monitored regularly. The use of probiotic resulted in good conclusion by bringing feed cost down, improving water quality, increasing plankton concentration, quick breakdown of unused feed and checking algal bloom. The best result was obtained in the tanks with ‘weekly’ dose in the form of diverse assemblage of zooplankton, good condition factor and highest specific growth rate of the stocked fishes.
PubDate: 2019-06-01

• Isolation of Plant Growth Promoting fluorescent Pseudomonas from
Mid-Himalayan Apple Orchards and their Similarity Analysis
• Abstract: Ten fluorescent Pseudomonas species isolated from normal and replant rhizosphere soil samples of apple collected from different locations of Shimla and Kullu districts of Himachal Pradesh. These Pseudomonas species solubilized tri calcium phosphate and showed substantial amount of soluble phosphorus in Pikovskay’s broth, exhibited the production of siderophore and growth inhibition against Dematophora necatrix, white root rot causing fungi in apple orchards. Random Amplified Polymorphic DNA analysis was done using four arbitary decamer primers of OPA series to observe genetic homogeneity/polymorphism among 10 isolates of fluorescent Pseudomonas species. Total 25 bands were generated with 4 random decamer oligonuceleotide primers. All the bands generated through RAPD-PCR were polymorphic in nature. The dendrogram constructed using UPGMA method showed that all the ten Pseudomonas isolates were categorized into three distinct clusters. The isolate An-9-Mg and An-H showed maximum similarity (67%) with each other and An-G showed 53% similarity with An-9-Mg and An-H. The isolate Ar-1-Mg was totally different from all other nine strains. Out of the ten Pseudomonas isolates, An-G and An-H showed maximum production of P-solubilization, siderophore and antifungal activity. Therefore, the uniqueness of Pseudomonas isolates An-G and An-H suggested their potential use for developing a cost effective and eco friendly biofertilizers for apple, an important cash crop of Himachal Pradesh.
PubDate: 2019-06-01

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