• Title/Summary/Keyword: North-East India

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Inversion Research on the shortening and Sliding of Drape Zones between Chinese Continent Blocks by GPS Data

  • Zhixing, Du;Fanlin, Yang;Xinzhou, Wang;Xiushan, Lu;Huizhan, Zhang
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • v.1
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    • pp.401-405
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    • 2006
  • A uniform velocity field of crust can be obtained by cumulative multi-year GPS data. Then the shortening and sliding of drape zones between Chinese Continent Blocks can be researched through the velocity field and dynamics meaning is also analyzed. A model of movement and strain is created to extract displacing and rotating information of blocks in this paper. On the basis of it, the shortening vectors and sliding states of drape zones between blocks can be obtained by the model of level center of gravity moving velocity vectors between neighboring blocks. Some result show as follows. India plate jostles greatly toward north, so a complicated movement situation is formed for 14 sub-blocks. And self-deformations of inner tectosomes can be greatly reflected according to the characteristics of drape zones between tectosomes. The extrusion deformation exists between Himalaya and Qiangtang blocks. Its contraction ratio is about 20.1 $mm.a^{-1}$. However, it only is $mm.a^{-1}$ between Tarim and Zhungar. The deformation characteristics and contraction ratio of other drape zones are obviously different with the former. The movement characteristics of contraction, shear, dislocation, etc. are showed in these zones. The average contraction ratio is about 5.0 $mm.a^{-1}$. The whole trend in the west continent has a big movement toward north, and in the east continent has a small movement toward south or southeast. The strain of west continent is far bigger than that of east, and the strain of southwest is bigger than that of the southeast. It is whole showed that India plate jostles toward north-east and the south-north zone has cutting and absorbing phenomena. The total characteristics and present-day trends of deformation of inland drape zones are basically described by the sinistrorse dislocation in south-north zone and Arjin fracture, the sinistrorse shear between south china and north china, etc.

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Growth Rate and Volatility of Exports by Continent & Future Growth potential Analysis (대륙별 수출액의 상승률과 변동성 및 향후 성장 가능성 분석)

  • Choi, Soo-Ho;Choi, Jeong-II
    • The Journal of the Korea Contents Association
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    • v.17 no.11
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    • pp.192-199
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    • 2017
  • The purpose of this paper is to examine the growth trends and volatility of exports in Asia, North America, Europe, Central and South America, Middle East and Africa since 2010. And analyze the correlation and model analysis to find out future directions of development. As a result of the analysis, it showed high export share in Asia, North America, Europe, Central and South America, Middle East and Africa. Asia, North America, Europe showed a relatively high rate of increase in exports and the month-on-month rate of change was stable in Asia and North America. In order to increase our exports through this research, we should pay much attention to export improvement to Asia, North America and Europe. Especially, Asia's exports account for more than 50%, so it seems necessary to plan export enhancement to China, Japan, Vietnam, Hong Kong, Taiwan and India. Although the proportion of exports is not large yet, much attention needs to be paid to new markets in Central and South America, the Middle East and Africa. And I look forward to systematic progress in export promotion.

Trace elements analysis in some medicinal plants using graphite furnace-atomic absorption spectroscopy

  • Anal, Jasha Momo H.;Chase, Petevino
    • Environmental Engineering Research
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    • v.21 no.3
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    • pp.247-255
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    • 2016
  • Ten trace elements (Mg, Ca, V, Cr, Mn, Fe, Cu, Zn, Mo, and Cd) were determined in seven traditionally used wild medicinal plants of the Nagas in the North-East India viz Cynoglossum furcatum Wallich, Elsholtzia blanda Bentham, Lycopodium cernuum Linnaeus, Potentilla fulgens Wallich ex Hooker, Swertia macrosperma C.B. Clarke, Thalictrum foliolosum DC and Valeriana jatamansi Jones. Plant samples were dried, weighed, digested and analyzed for their mineral distribution level ranging from trace to major elements by graphite furnace-atomic absorption spectroscopy. All the medicinal herbs studied were found to contain the ten elements analyzed. The elemental concentration is given in mg/kg. Mg and Ca are present in high concentrations in both the roots and leaves of the plant samples. Among trace transition metals Fe had the highest concentration, followed by Mn, Cr, Cu, V, Zn, and Mo. Analysis showed that the toxic Cd element was at a lower concentration and is within the permissible limit of FAO/WHO, California standards and United States Pharmacopeia Limit for Nutritional Supplements.

Diversity of Culturable Soil Micro-fungi along Altitudinal Gradients of Eastern Himalayas

  • Devi, Lamabam Sophiya;Khaund, Polashree;Nongkhlaw, Fenella M.W.;Joshi, S.R.
    • Mycobiology
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    • v.40 no.3
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    • pp.151-158
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    • 2012
  • Very few studies have addressed the phylogenetic diversity of fungi from Northeast India under the Eastern Himalayan range. In the present study, an attempt has been made to study the phylogenetic diversity of culturable soil fungi along the altitudinal gradients of eastern Himalayas. Soil samples from 24 m above sea level to 2,000 m above sea level altitudes of North-East India were collected to investigate soil micro-fungal community structure and diversity. Molecular characterization of the isolates was done by PCR amplification of 18S rDNA using universal primers. Phylogenetic analysis using BLAST revealed variation in the distribution and richness of different fungal biodiversity over a wide range of altitudes. A total of 107 isolates were characterized belonging to the phyla Ascomycota and Zygomycota, corresponding to seven orders (Eurotiales, Hypocreales, Calosphaeriales, Capnodiales, Pleosporales, Mucorales, and Mortierellales) and Incertae sedis. The characterized isolates were analysed for richness, evenness and diversity indices. Fungal diversity had significant correlation with soil physico-chemical parameters and the altitude. Eurotiales and Hypocreales were most diverse and abundant group of fungi along the entire altitudinal stretch. Species of Penicillium (D=1.44) and Aspergillus (D=1.288) were found to have highest diversity index followed by Talaromyces (D=1.26) and Fusarium (D=1.26). Fungal distribution showed negative correlation with altitude and soil moisture content. Soil temperature, pH, humidity and ambient temperature showed positive correlation with fungal distribution.

Antagonistic Potential of Native Trichoderma viride Strain against Potent Tea Fungal Pathogens in North East India

  • Naglot, A.;Goswami, S.;Rahman, I.;Shrimali, D.D.;Yadav, Kamlesh K.;Gupta, Vikas K.;Rabha, Aprana Jyoti;Gogoi, H.K.;Veer, Vijay
    • The Plant Pathology Journal
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    • v.31 no.3
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    • pp.278-289
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    • 2015
  • Indigenous strains of Trichoderma species isolated from rhizosphere soils of Tea gardens of Assam, north eastern state of India were assessed for in vitro antagonism against two important tea fungal pathogens namely Pestalotia theae and Fusarium solani. A potent antagonist against both tea pathogenic fungi, designated as SDRLIN1, was selected and identified as Trichoderma viride. The strain also showed substantial antifungal activity against five standard phytopathogenic fungi. Culture filtrate collected from stationary growth phase of the antagonist demonstrated a significantly higher degree of inhibitory activity against all the test fungi, demonstrating the presence of an optimal blend of extracellular antifungal metabolites. Moreover, quantitative enzyme assay of exponential and stationary culture filtrates revealed that the activity of cellulase, ${\beta}$-1,3-glucanase, pectinase, and amylase was highest in the exponential phase, whereas the activity of proteases and chitinase was noted highest in the stationary phase. Morphological changes such as hyphal swelling and distortion were also observed in the fungal pathogen grown on potato dextrose agar containing stationary phase culture filtrate. Moreover, the antifungal activity of the filtrate was significantly reduced but not entirely after heat or proteinase K treatment, demonstrating substantial role of certain unknown thermostable antifungal compound(s) in the inhibitory activity.

The pattern of precipitation in the summertime on the North Pacific High Pressure System in the Northeastern Asia (동아시아의 북태평양 고기압 연변의 하계 강수 패턴)

  • 윤홍주;류찬수
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2003.05a
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    • pp.334-337
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    • 2003
  • The results of this numerical model is usable to analysis for the phenomena of precipitation during the periods of a rainy season in the Northeastern Asia. Case l(start of rainy season) dominates over precipitation by the processing of convection from the equator region through the East China region, and then the most of water vapor is transported by the processing of advection from the India-monsoon region to this study region. Case 2(heavy rainy season) faints precipitation by the processing of convection in the Korean peninsula, but dominates precipitation by the processing of microphysics. the water vapor originates from the India-monsoon region.

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Adult Non Hodgkin's Lymphoma Patients: Experience from a Tertiary Care Cancer Centre in North East India

  • Hazarika, Munlima;Iqbal, Asif;Krishnatreya, Manigreeva;Sharma, Jagannath Dev;Bhuyan, Chidananda;Saikia, Bhargab Jyoti;Roy, Partha Sarathi;Das, Rashmi;Nandy, Pintu;Kataki, Amal Chandra
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.7
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    • pp.2879-2881
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    • 2015
  • There is paucity of data on non Hodgkin's lymphoma (NHL) from our population in North-East India. In this retrospective study, patients were consecutively followed-up to see the clinic-pathological pattern of NHL, various responses, and pattern of relapses to first line treatment with chemotherapy. All patients in the present study received standard regimen of cyclophosphamde, doxorubicin, vincristine, prednisolone (CHOP) with or without rituximab (R-CHOP) as per our institutional protocol as first line therapy. Our study has shown that, in our adult population, the majority of NHL cases present with stage II and stage III disease and extra nodal involvement, B-cell lymphomas and diffuse large cell lymphomas being the most common subtypes. International prognostic index was a significant factor for varied responses to treatment. The majority of relapses after complete remission occurred in the first year.

Diversity and Utilisation of Floral Non Timber Forest Products by the Communities in Rural Meghalaya, North-East India

  • Lynser, Marvellous B.;Tiwari, Brajesh Kumar
    • Journal of Forest and Environmental Science
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    • v.32 no.1
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    • pp.39-54
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    • 2016
  • The present study analyzes the diversity and usage of NTFPs and evaluates their importance in the day to day life of the people of rural Meghalaya. People use 172 NTFPs belonging to 139 plant species mainly for food, medicine and fuelwood and to a lesser extent for construction, handicrafts and ornamental purpose. These 139 plants belonged to 117 genera and 70 families with Rosaceae, Poaceae and Fagaceae families as the dominant NTFP yielding families. Fruits from shrubs and trees are most commonly harvested by people. Collection and availability of NTFPs for use as food are more during the summer season, which is also the period with least availability of job. NTFPs for subsistence use are greater in number than those having commercial value. The most commonly harvested plant parts are fruits and leaves. Roots, rhizomes and whole plants are extracted in lesser quantity which is a positive approach from sustainability point of view. NTFPs and other forest products also form a vital part of the rural household's income generation activities.

Lemanea manipurensis sp. nov. (Batrachospermales), a freshwater red algal species from North-East India

  • Ganesan, E.K.;West, J.A.;Zuccarello, G.C.;de Goer, S. Loiseaux;Rout, J.
    • ALGAE
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    • v.30 no.1
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    • pp.1-13
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    • 2015
  • A new macroscopic riverine red algal species, Lemanea manipurensis sp. nov. (Batrachospermales) is described from Manipur in northeast India. It has a sparsely branched, pseudoparenchymatous thallus with a single, central axial filament that lacks cortical filaments. Spermatangia occur generally in isolated, low and indistinct patches or form an almost continuous ring around the axis. Carposporophytes project into the hollow thallus cavity without an ostiole. The most striking morphological feature is the carposporophyte with very short gonimoblast filaments having cylindrical, narrow and sparsely branched sterile filaments, the terminal cell of each branch with a single, large, elongate carpospore. The widely distributed L. fluviatilis has spherical carpospores in long branched chains. Phylogenetic analysis of rbcL sequence data and comparison with other Batrachospermales clearly show that our specimens do not align with other species of Lemanea and Paralemanea investigated thus far. Five specific names attributed in previous literature (1973-2014) to Lemanea from Manipur, L. australis, L. catenata, L. fluviatilis, L. mamillosa, and L. torulosa are rejected until critical anatomical and molecular evidence is available for specimens from the Manipur river systems. Taxa referable to Paralemanea were not confirmed for India in this study. In view of the high demand for food and medical uses of L. manipurensis in northeast India, conservation measures are needed for its long term survival. The present paper constitutes the first combined morphological / molecular study on a freshwater red alga from India.

미기록종을 포함한 소요산의 선태류

  • 홍원식
    • Journal of Plant Biology
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    • v.3 no.1
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    • pp.26-31
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    • 1960
  • 1. Mt. Soyo is situated in the central part of Korea, approximately 37$^{\circ}$56'W. Latitude, 127$^{\circ}$4'N. Longitude. This mountain is about 530 meters above sea level, and consists mainly of granites. Above 200 meters the area is covered with oak trees (Quercus mongolica, Q. aliena) with a kind of Rhododendron (Rhododendron mucronulatum, R. schlippenbachii) as undergrowth. About 500 packets of bryophytes were collected by the writer in 1959. 2. The mosses collected in this region were of 68 species belonging to 51 genera. Those species may roughly be divided, as follows; 1) 15 species (22.1%) are distributed also in Europe and North America (Holarctic element). 2) 2 species (2.9%) occur also in Kamchatka and the Aleutians (North Pacific element). 3) 14 species (20.6%) are widely distributed every where (Cosmopolitan element). 4) 19 species (27.9%) occur also in the temperature region of the Far East (East Asiatic element). 5) 3 species (4.4%) occur also in Indomalaya and India (Tropical element). 6) 15 species (22.1%) are endemic to Japan and Korea. 3. The Hepaticae collected in this region are of 11 species belonging to 7 genera. Those may roughly be divided, as follows; 1) 4 species (36.4%) are distributed also in Europe and North America (Holarctc element). 2) 5 species (45.5%) occur also in the temperature region of the Far East (Asiatic element). 3) 1 species (9.1%) occur also in Indomlaya. 4) 1 species (9.1%) are endemic in Japan and Korea. 4. The species which are new to the flora of Korea are as follows; 1) Leucobryum glaucum (L.) Schimp. 2) Psedoleskeopsis dicurvata (Mitt.) Broth. 3) Thuidium delicatulum (Hedw.) Mitt. 4) Dolichotheca perrobustum (Broth.) Broth. 5) Brachiolejeunia sandvicensis (Gott). Evans. 6) Porella vernicosa Lindb. ssp. gracillina (Mitt.) Ando.

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