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- Mamta Purohit
- Jamaluddin
- K. C. Joshi
- N. Roychoudhury
- S. Sambath
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- N. C. Pant
- S. D. Sonkar
- S. K. Banerjee
- C. S. P. Singh
- Tej Bahadur
- U. B. Mathur
- Rakesh Singh
- Ravi Mishra
- P. Ramesh
- Ajeet Kumar
- Prerna Ramesh
- Kishor K. Gaonkar
- A. Pratap
- S. C. Jain
- R. K. Bansal
- M. N. Chaturvedi
- R. R. Yadav
- Bhawan Jyoti
- Devraj Singh
- Shivani Kaushik
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- Uma Sah
- N. Devachandra
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- Jyoti Bala
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- Amandine Junot
- Shantanu Kumar Dubey
- A. K. Tripathi
- Barun Singh
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- Tara Singh Mehra
Journals
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Pandey, D. K.
- Fungicidal Effect on Germination of Butea monosperma Seeds during Storage
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Indian Forester, Vol 122, No 2 (1996), Pagination: 185-186Abstract
No abstract
- Efficacy of Three Varietal Toxins of Bacillus thuringiensis Against Ailanthus Defoliator, Atteva fabriciella Swed. (Lepidoptera: Yponomeutidae)
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Indian Forester, Vol 122, No 11 (1996), Pagination: 1023-1027Abstract
Effectiveness of three varietal toxins of Bacillus thuringiensis viz. var. dendrolimus endotoxin, var. thuringiensis and its exotoxin and var .kurslaki endotoxin. Were evaluated in the laboratory against the last instar larvae of Atteua fabriciella Swed. By spraying on larvae and food plant, Alianthus excelsa Roxb. Results revealed that the spraying of B.t. on host plant was more effective in killing larvae than on the target pest, irrespective of toxines. Among the tested toxins, var. dendrolimus endotoxin proved to be highly effective and appeared to be best, both for larval and leaf treatment @ 2.0 and 1.5% respectively.- Combined Influence of Pit Size and Fertilizer on Survival and Growth of Cassia siamea in Degraded Soil
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Indian Forester, Vol 121, No 1 (1995), Pagination: 44-50Abstract
The influence of different pit sizes with or without fertilizer application on survival and growth of thirty months' old Cassia siamea in degraded soil was studied. The survival and plant height significantly increased as tlie size of pit increased with or without fertilizer. Urea over 25 g pit-1 applied in smaller pits < 30 cm3 ) adversely affected the survival of plants, where as, response of phosphorus as a whole was observed to be positive. Among forty possible treatment combinations (5 pit sizes and. 8 fertilizer levels) the best treatment combination was 45x45x60 em pit size with 75 g urea and 75 g single superphosphate per pit for better survival and higher growth of plants.- On a New Species of Macrocephalites Zittel from Jurassic of Kachchh (Gujarat)
Abstract Views :191 |
PDF Views:148
Authors
Affiliations
1 Department of Geology, Banaras Hindu University, Varanasi 221 005, IN
1 Department of Geology, Banaras Hindu University, Varanasi 221 005, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 23, No 12 (1982), Pagination: 621-623Abstract
A new species of Macrocephalites Zittel viz. Macrocephalites (Macrocephalites) inflata, has been proposed, described and illustrated from the materials of Jurassic of Pachchham Island in the district of Kachchh.Full Text
- Stratigraphic Distribution and Depositional Environment of the Chaya formation along the Northwestern Coast of Saurashtra Peninsula, Western India
Abstract Views :180 |
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Authors
Affiliations
1 Department of Geology, University of Rajasthan, Jaipur - 302004, IN
1 Department of Geology, University of Rajasthan, Jaipur - 302004, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 69, No 6 (2007), Pagination: 1215-1230Abstract
Neogene-Quaternary sedimentary basin of Saurashtra along the northwestern coast of India is of great interest for its importance in sea-level and palaeoclimatic studies. Lithostratigraphically, the lithic-units have been grouped into Gaj, Dwarka, Miliolite, Chaya, Katpur and Mahuva Formations in ascending order. Present paper deals with stratigraphic distribution and depositional environment of individual sections of the Chaya Formation. With the addition of a new member, the Chaya Formation now consists of three members; viz. Okha Shell Limestone Member, Aramda Reef Member and Porbandar Calcarenite Member.Keywords
Chaya Formation, Lithostratigraphy, Biota, Depositional Environment, Coastal Saurashtra, Gujarat.- Late Pleistocene Coral-Algal Sediments of Chaya Formation of Mithapur Area, Jamnagar, Gujarat
Abstract Views :174 |
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Authors
Affiliations
1 Department of Geology, University of Rajasthan, Jaipur - 302 004, IN
2 Department of Geology,University of Rajasthan, 2A-25, Malaviya Nagar, Jaipur - 302 017, IN
1 Department of Geology, University of Rajasthan, Jaipur - 302 004, IN
2 Department of Geology,University of Rajasthan, 2A-25, Malaviya Nagar, Jaipur - 302 017, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 61, No 2 (2003), Pagination: 195-201Abstract
Chaya Formation (Late Pleistocene-Holocene) of Dwarka-Okha area in Saurashtra peninsula, Gujarat, is subdivided into the lower Okha Shell Limestone Member and the upper Aramda Reef Member. A ca 1.5m thick succession of coral-alga1 lithofacies of Aramda Reef Member that has been radiometrically dated at Woods Hole Oceanographic Institute, U.S.A. to 41.2-18.3 ka, is exposed in a well section near Mithapur (district Jamnagar), and is described here. The environmental conditions during Late Pleistocene are also discussed.Keywords
Coral-Algal Sediments, Palaeo-Environment, Chaya Formation, Mithapur, Gujarat.- Active Channel Systems in the Middle Indus Fan: Results from High-Resolution Bathymetry Surveys
Abstract Views :262 |
PDF Views:88
Authors
Ravi Mishra
1,
D. K. Pandey
1,
P. Ramesh
1,
Ravi Mishra
2,
Ajeet Kumar
2,
Prerna Ramesh
2,
Kishor K. Gaonkar
2,
A. Pratap
2
Affiliations
1 National Centre for Antarctic and Ocean Research, (Ministry of Earth Science, GoI), Headland Sada, Vasco-Da-Gama, Goa 403 804, IN
2 National Centre for Antarctic and Ocean Research, Goa, IN
1 National Centre for Antarctic and Ocean Research, (Ministry of Earth Science, GoI), Headland Sada, Vasco-Da-Gama, Goa 403 804, IN
2 National Centre for Antarctic and Ocean Research, Goa, IN
Source
Current Science, Vol 108, No 3 (2015), Pagination: 409-412Abstract
Multibeam swath bathymetry survey was carried out in the middle Indus fan region in the eastern Arabian Sea. Using high-resolution bathymetry data, major morphological features such as the Raman seamount and the Laxmi ridge have been mapped. This study also reveals the presence of sinuous channel systems, continuing towards the distal fan. Though there are several reports on the presence of channels in different regions of the Indus fan, we report here the presence of active channels to the east of the Laxmi ridge. The total length of all channels along the channel axis is about 915 km. The individual spreads of the channels vary from 189.8 to 1980.5 m. Most of the channels are shallow with the average depth measuring about 60 m. The longest channel is about 256.3 km long, 702 m wide and about 57 m deep. The channels observed are similar to the land-based fluvial channels. The channels identified are highly sinuous in nature, their meanders and cut-off meanders are similar to the characteristics of fluvial channels. In general, average channel course in the study area is more than twice the straight course.Keywords
Active Channel Systems, Bathymetry Survey, Morphological Features, Submarine Fan.Full Text
- A Review of the Stratigraphy of Marwar Supergroup of West-Central Rajasthan
Abstract Views :304 |
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Authors
D. K. Pandey
1,
Tej Bahadur
1
Affiliations
1 Department of Geology, University of Rajasthan, Jaipur - 302 055, IN
1 Department of Geology, University of Rajasthan, Jaipur - 302 055, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 73, No 6 (2009), Pagination: 747-758Abstract
The lithostratigraphy, depositional environment and age of the Marwar Supergroup have been reviewed in the light of report of δ13C depletion recorded in the carbonates of the Bilara Group (middle part of Marwar Supergroup) and discovery of trilobite-like trace fossils from the "Red beds" of Nagaur Group (upper part of Marwar Supergroup). The δ13C depletion observed in Bilara carbonates is not a result of glaciation rather due to rapid burial and poor water circulation in the low energy water of the protected basin. Secondly, the trace fossils are, in fact, traces of notostracan crustaceans found in shallow fluvial and shallow lacustrine environment. The present paper also records a spiral, burrowing trace-fossil, possibly Gyrolithes, from a cross-bedded sandstone of the Jodhpur Group.Keywords
Lithostratigraphy, Depositional Environment, Age, Gyrolithes, Marwar Supergroup, Rajasthan.References
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- Radiocarbon Dates of Corals, Gastropods and Foraminifers from Saurashtra Peninsula, Gujarat and their Implications for Sea Level Studies
Abstract Views :205 |
PDF Views:3
Authors
U. B. Mathur
1,
D. K. Pandey
1
Affiliations
1 Department of Geology, University of Rajasthan, Jaipur - 302 00, IN
1 Department of Geology, University of Rajasthan, Jaipur - 302 00, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 60, No 3 (2002), Pagination: 303-308Abstract
High precision Acceleration Mass Spectrometry (AMS) dates of corals, gastropods and smaller foraminifers from a coral-algal stratigraphical sequence, exposed 2.73-4.20 m above the present msl, near Mithapur on Dwarka-Okha coast, have been reported in the present paper. The age ranges from ca. 41.2 to 18.3 ka BP. The mineralogy, petrology and δ13C values of the samples indicate that the dates are reliable within the limitations of the dating method. Confirmatory U/Th dating will, however, be useful to strengthen the conclusion. Since the samples are from the intraplate area of the Saurashtra Peninsula, the present position of 41.2 and 18.3 ka old sea level recorders cannot be explained by a large-scale uplift. At the same time, they cannot be taken as the records of the sea level stands of ∼40 ka and ∼18 ka BP, as the generally accepted data suggest very low sea level stands of the periods. Therefore, an epeirogenetic model is to be evolved that satisfactorily explains not only the presence of -40 ka corals and stratigraphically superposed younger ∼18 ka sediments, but also the corals of 118-176 ka BP and 6 ka BP ages that co-exist at low altitudes at Mithapur. For this we need to generate more reliable dates of the area and integrate them with the geological and geophysical information.Keywords
Late Pleistocene, Coral, AMS Dating, Sea Level Changes, Saurashtra, Gujarat.- Integrated Rural Development
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Authors
Affiliations
1 Engineers India Limited, New Delhi, IN
1 Engineers India Limited, New Delhi, IN
Source
Journal of the Association of Engineers, India, Vol 53, No 4-1 (1978), Pagination: S1-S1Abstract
In the past, piece meal thrusts have been made in the field of rural development. Not enough care has been given to the spatial and functional integration of various developmental programmes. Mostly planning has been at macro-level and area level plans, to exploit fully the potentials of an area, have not been attempted.- Ultrasonic Properties of β-Phase Nickel Aluminide
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Authors
R. R. Yadav
1,
D. K. Pandey
1
Affiliations
1 Physics Department, Allahabad University, Allahabad-211002, IN
1 Physics Department, Allahabad University, Allahabad-211002, IN
Source
Journal of Pure and Applied Ultrasonics, Vol 28, No 1 (2006), Pagination: 4-11Abstract
The ultrasonic attenuation due to phonon-phonon interaction has been evaluated in β-phase NiAl in high temperature interval 300-1400K along the crystallographic directions <100>, <110> and <111> for longitudinal and shear waves. For this evaluation we have calculated second and third order elastic constants (SOEC and TOEC) at the different temperatures using only two basic parameters. Ultrasonic velocities and Non-linearity parameters are calculated using the elastic constants. Structural stability, abrupt change in ductility, disordering at TC may be predicted on the basis of temperature variation of the elastic constants and the ultrasonic attenuation.Full Text
- Ultrasonic Attenuation in Yttrium Monochalcogenides
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Authors
Affiliations
1 USICT, Guru Gobind Singh Indraprastha University, Sector 16C, Dwarka , New Delhi-110078, IN
2 Amity Institute of Applied Sciences, Amity University, Noida-201313, IN
3 State Council of Educational Research & Training Haryana, Gurugram-122 001, IN
4 Amity School of Engineering and Technology, Delhi, Noida-201313, IN
5 Amity Institute of Nanotechnology, Amity University, Noida-201313, IN
6 Department of Physics, P.P.N. (P.G.) College, Kanpur-208001, IN
1 USICT, Guru Gobind Singh Indraprastha University, Sector 16C, Dwarka , New Delhi-110078, IN
2 Amity Institute of Applied Sciences, Amity University, Noida-201313, IN
3 State Council of Educational Research & Training Haryana, Gurugram-122 001, IN
4 Amity School of Engineering and Technology, Delhi, Noida-201313, IN
5 Amity Institute of Nanotechnology, Amity University, Noida-201313, IN
6 Department of Physics, P.P.N. (P.G.) College, Kanpur-208001, IN
Source
Journal of Pure and Applied Ultrasonics, Vol 40, No 4 (2018), Pagination: 93-99Abstract
The present paper reports ultrasonic properties of yttrium chalcogenides (YCh: Ch=S, Se and Te) along <110> direction in the temperature region 100-500 K. The Coulomb and Bom-Mayer potential model is applied to compute the higher order elastic constants. These elastic constants are used to utilise for computing ultrasonic velocity, ultrasonic Grüneisen parameters, thermal conductivity and ultrasonic attenuation. Additionally, the second order elastic constants has been applied to evaluate many mechanical properties such as Young modulus, bulk modulus, Cauchy's relation, Zener's anisotropy factor, toughness to fracture ratio for the prediction about the chosen materials. The YCh follow the Born stability criterion, so these materials are mechanical stable. The toughness to fracture is greater than 0.57, so these materials are brittle in nature. The thermal conductivity is also computed by means of Slack and Berman approach. Finally the temperature ultrasonic attenuation due to phonon-phonon interaction and thermo-elastic relaxation mechanisms has been computed along <110> at room temperature. The achieved results for yttrium monochalcogenides are discussed with similar type of materials.
Keywords
Monochalcogenides, Elastic Constants, Ultrasonic Properties, Thermal Properties.Full Text
References
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- Kaushik S., Bhalla V. and Singh D., Temperature dependent elastic and ultrasonic properties of silver halide crystals, J. Pure Appl. Ultrason. 36 (2014), 85-90.
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- Coralline Algae from the Aramda Reef Member of the Chaya Formation, Mithapur, Gujarat
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Authors
S. Kishore
1,
P. K. Misra
1,
D. K. Pandey
2,
A. K. Jauhri
3,
Tej Bahadur
2,
S. K. Singh
1,
R. S. Chauhan
1,
S. K. Tripathi
1
Affiliations
1 Department of Botany, University of Lucknow, Lucknow - 226 007, IN
2 Department of Geology, University of Rajasthan, Jaipur - 302 055, IN
3 Department of Geology, University of Lucknow, Lucknow - 226 007, IN
1 Department of Botany, University of Lucknow, Lucknow - 226 007, IN
2 Department of Geology, University of Rajasthan, Jaipur - 302 055, IN
3 Department of Geology, University of Lucknow, Lucknow - 226 007, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 80, No 2 (2012), Pagination: 215-230Abstract
The Quaternary sediments of the Aramda Reef Member of the Chaya Formation exposed in the Mojap coast near Mithapur, Gujarat are characterized by well-developed coralline algal build-ups. These algal build-ups are exceptionally rich in coralline algae and corals. In the present paper, thirteen species belonging to eight genera of coralline algae are described. Out of these, seven species (Titanoderma nataliae, Lithophyllum nitorum, Lithophyllum quadratum, Spongites sp. Brandano et al., 2005, Sporolithon lvovicum, Mesophyllum fructiferum and Lithothamnion praefruticulosum) are the new records for India. Four species (Titanoderma pustulatum, Sporolithon intermedium, Mesophyllum commune and Phymatolithon sp.) are first time recorded from the study area. Among the major framework builders of coralline algae of the Aramda Reef Member are Lithophyllum, Titanoderma, Sporolithon, Mesophyllum and Lithothamnion.
Two associations of the coralline algal assemblages can be distinguished: one indicating shallow water, high-energy conditions is developed in the upper part, while the other suggesting deposition in low-energy conditions is characteristic of the lower part of the succession. These algal associations, together with their growth-forms (encrusting, warty to fruticose, layered) come from stratigraphically separate beds. They indicate that the temperature, depth and hydrodynamic energy conditions also fluctuated during deposition of the Aramda Reef Member. It is concluded that the lower Hapalidiaceae-Sporolithaceae association dominated during warmer interval, whereas the upper lithophylloids association flourished in relatively low-temperature conditions. The associated corals indicate that minimum winter sea surface temperature remained above 18°-20° C.
Keywords
Coralline Algae, Aramda Reef Member, Chaya Formation, Mojap, Gujarat.References
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- Quantitative Assessment of Crop Species Diversity in Shifting Cultivation System o Eastern Himalaya
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Authors
Affiliations
1 College of Horticulture and Forestry, Central Agricultural University (I), Pasighat 791 102, IN
2 Division of Agricultural Extension, KAB-I, Indian Council of Agricultural Research, New Delhi 110 012, IN
3 ICAR-National Bureau of Plant Genetic Resources, New Delhi 110 012, IN
4 ICAR-Agricultural Technology Application Research Institute, Kanpur 278 002, IN
1 College of Horticulture and Forestry, Central Agricultural University (I), Pasighat 791 102, IN
2 Division of Agricultural Extension, KAB-I, Indian Council of Agricultural Research, New Delhi 110 012, IN
3 ICAR-National Bureau of Plant Genetic Resources, New Delhi 110 012, IN
4 ICAR-Agricultural Technology Application Research Institute, Kanpur 278 002, IN
Source
Current Science, Vol 117, No 8 (2019), Pagination: 1357-1363Abstract
The narrowing of diversity in crop species contributing to the world’s food supplies has been considered a potential threat to food security. The present study quantifies crop species diversity in controversial shifting cultivation system (SCS) using primary data from 52 villages spread across six North-Eastern (NE) hill states of India. The findings reveal that SCS is much diversified compared to settled cultivation system. Along with cereals, millets and pulses, the upland tribes grow a variety of horticultural crops on SC land. At the aggregate level, horticultural crops in the sampled states were observed to be much diversified and the mean diversification index value was found to be 0.79 (Simpson’s Diversity Index) for the six NE hill states on SC land. The present study documented 25 cultivars of vegetables, 22 cultivars of fruits, spices and plantation crops, and 12 field crops in SCS, besides many minor fruits and underutilized vegetables. However, the most densely populated crop species were rice, maize and finger millet in the case field crops. Vegetable crops included pumpkin, potato and ash gourd, and fruit crops included banana, pineapple and citrus, while spices like ginger, chilli and turmeric were densely cultivated on SC land. Thus, the prevailing crop species in SCS had their own attributes, performances and challenges. Experiences of the present study shall be the guiding benchmark for those who negate the possibilities of agrobiodiversity in SCS.Keywords
Agrobiodiversity, Crop Diversity, Upland Tribes, Shifting Cultivation.Full Text
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- Attachment to Shifting Cultivation among Konyak Naga Tribe in Eastern Himalaya:Choice or Compulsion?
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Authors
Affiliations
1 Central Agricultural University (I), Pasighat 791 102, IN
2 Krishi Anusandhan Bhavan-I, Pusa, New Delhi 110 012, IN
3 ICAR-Central Institute of Freshwater Aquaculture, Bhubaneswar 751 002, IN
1 Central Agricultural University (I), Pasighat 791 102, IN
2 Krishi Anusandhan Bhavan-I, Pusa, New Delhi 110 012, IN
3 ICAR-Central Institute of Freshwater Aquaculture, Bhubaneswar 751 002, IN
Source
Current Science, Vol 116, No 8 (2019), Pagination: 1387-1391Abstract
Community attachment to places or practices and the cultural contexts of tribes are subjects of long traditions of research. A few studies, however, have extended these traditions into increasingly marginalized areas located beyond historically deprived upland communities. This study addresses issues related to the sentiments of attachment and constructions of place among the low-income Konyak Naga tribe in Nagaland, situated on the outer fringes of the Eastern Himalaya. Using four-dimensional model proposed by Raymond et al., with factor analysis, the study revealed that in addition to socio-economic factors that affect such connection to land and landscape, place dependence construct (lack of alternate livelihood) is observed to be the most important driver of attachment to the practice of shifting cultivation. This was followed by strong connections with the natural environment or nature bonding of Konyak Naga to the forest. Contribution of economic and traditional institution- bonding with the practice was found among the tribe as a means of livelihood. Sensing that such debate of the socio-spatial environment might be perceived as inconsistent, ill-informed and negative, we discuss implications in relation to cultural diversity and broader concerns about evolving rural poverty.Keywords
Factorial Analysis, Place Attachment Model, Shifting Cultivation, Tribal Communities.Full Text
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- Is Rubber Monoculture Banishing Agrobiodiversity and Happiness? Evidences from Shifting Cultivation Landscape of Tripura, Northeast India
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Authors
Affiliations
1 College of Horticulture and Forestry, Central Agricultural University, Pasighat 791 102, IN
2 Division of Agricultural Extension, Krishi Anusandhan Bhavan-I, ICAR, New Delhi 110 012, IN
3 ICAR-Indian Institute of Pulses Research, Kanpur 278 002, IN
4 ICAR-Agricultural Technology Application Research Institute, Kanpur 278 002, IN
1 College of Horticulture and Forestry, Central Agricultural University, Pasighat 791 102, IN
2 Division of Agricultural Extension, Krishi Anusandhan Bhavan-I, ICAR, New Delhi 110 012, IN
3 ICAR-Indian Institute of Pulses Research, Kanpur 278 002, IN
4 ICAR-Agricultural Technology Application Research Institute, Kanpur 278 002, IN
Source
Current Science, Vol 118, No 1 (2020), Pagination: 108-113Abstract
Natural environmental settings, in general, are considered by humans as the ideal ambience which makes them happy and reinvigorated especially within their mental realm. If this is the case, can we assume that all green spaces are synonymous to augmenting happiness? Biodiversity is expressed in terms of a system having number and abundance of different species. For resilience of various ecosystem services like food production, climate regulation, and pest management to take place, prevalence of such biodiversity is essential which can substantially contribute to sustained human well-being. In this study, we assessed the status of agrobiodiversity and subjective well-being of an indigenous community amidst the transition from shifting cultivation (SC) to monoculture of natural rubber (NR). Sampling the respondents from 18 villages of Dhalai, Tripura, a remotely located district in northeast India and bordered by Bangladesh, we used mixed methods research for in depth investigation. Findings revealed that in the SC landscape of study area, the cultivated crop species and livestock breeds were being largely replaced by encroachment from rubber plantation. We documented only 19 crop species on such a landscape which is otherwise known for its vast agrobiodiversity in the tropics. This kind of transition from SC to NR which is usually supported by the government development interventions, has severely affected the ecosystem services of such landscapes and banishing happiness from the indigenous communities, as perceived by them. Hence stabilization of rich agrobiodiversity and simultaneously ensuring the peoples’ well-being is the only potential alternative for development in the region.Keywords
Agrobiodiversity, Indigenous Community, Northeast India, Rubber Plantation, Shifting Cultivation Landscape.Full Text
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- Elastic and Ultrasonic Properties of Cadmium Oxide
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Authors
Affiliations
1 University School of Information & Communication Technology, Guru Gobind Singh Indraprastha University, New Delhi-110 078, IN
2 Amity School of Engineering & Technology Delhi, A.U.U.P. Premises, Noida-201 313, IN
3 Department of Physics, Prof. Rajendra Singh (Rajju Bhaiya) Institute of Physical Sciences for Study and Research, Veer Bahadur Singh Purvanchal University, Jaunpur-222 003, IN
4 Department of Physics, P.P.N. (P.G.) College, Kanpur-208 001, IN
1 University School of Information & Communication Technology, Guru Gobind Singh Indraprastha University, New Delhi-110 078, IN
2 Amity School of Engineering & Technology Delhi, A.U.U.P. Premises, Noida-201 313, IN
3 Department of Physics, Prof. Rajendra Singh (Rajju Bhaiya) Institute of Physical Sciences for Study and Research, Veer Bahadur Singh Purvanchal University, Jaunpur-222 003, IN
4 Department of Physics, P.P.N. (P.G.) College, Kanpur-208 001, IN
Source
Journal of Pure and Applied Ultrasonics, Vol 42, No 3 (2020), Pagination: 78-80Abstract
The attenuation of ultrasonic waves has been estimated in rocksalt type (B1) and CsCl type (B2) structures of CdO at room temperature along , and directions. First of all, the higher order elastic constants have been computed using Born model with Mori and Hiki approach. Then, the second order elastic constants (SOECs) were applied to compute the mechanical constants such as shear modulus, Young's modulus, bulk modulus, tetragonal modulus, Poisson's ratio, Pugh's indicator for finding performance of CdO. Numerous physical quantities, such as ultrasonic velocity, Debye temperature, thermal conductivity, ultrasonic Gruneisen parameter and acoustic coupling constants have been determined for the chosen material. Finally, the attenuation of ultrasonic waves has been compared in B1 and B2 phases of CdO and discussed in correlation with available findings.Keywords
Cadmium Oxide, Elastic Constants, Thermal Properties, Ultrasonic Properties.Full Text
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- The Contribution of Sense of Place to Shifting Cultivation Sustenance: Evidence from West Garo Hills, North East India
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PDF Views:84
Authors
Affiliations
1 College of Horticulture and Forestry, Central Agricultural University (Manipur), Pasighat 791 102, IN
2 Facult_e des Sciences de l’Homme et de l’Environnement, Universit_e de La R_eunion, Saint-Denis, FR
3 Agricultural Extension Division, Indian Council of Agricultural Research, New Delhi 110 012, IN
1 College of Horticulture and Forestry, Central Agricultural University (Manipur), Pasighat 791 102, IN
2 Facult_e des Sciences de l’Homme et de l’Environnement, Universit_e de La R_eunion, Saint-Denis, FR
3 Agricultural Extension Division, Indian Council of Agricultural Research, New Delhi 110 012, IN
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Current Science, Vol 120, No 1 (2021), Pagination: 215-220Abstract
Nowadays, sense of place is increasingly becoming prevalent in environmental research. It is an interesting concept to study both attachment and emotional relationships that individuals or groups hold for a specific place. In order to understand such bonds to forested landscape and shifting cultivation (SC) among tribal communities, we employed a four-dimensional place attachment model and empirically tested it using factor analysis. The results of this study revealed that besides socio-economic factors which affect the bonds to a place and the place-based practice, strong connections with the natural environment and lack of alternative occupations are significant factors which might explain tribal dependence to the land and SC. Indeed, sense of place would allow a better understanding of territorial issues and favour place management.Keywords
Forested Landscape, Indigenous People, Sense of Place, Shifting Cultivation.Full Text
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Authors
Affiliations
1 College of Horticulture and Forestry, Central Agricultural University (Imphal), Pasighat 791 102, India
2 ICAR-Agricultural Technology Application Research Institute, Kanpur 278 002, India
3 College of Agriculture, Central Agricultural University (Imphal), Pasighat 791 102, India
1 College of Horticulture and Forestry, Central Agricultural University (Imphal), Pasighat 791 102, India
2 ICAR-Agricultural Technology Application Research Institute, Kanpur 278 002, India
3 College of Agriculture, Central Agricultural University (Imphal), Pasighat 791 102, India
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Current Science, Vol 123, No 6 (2022), Pagination: 767-771Abstract
North East India is a biodiversity-rich zone and a part of both the Himalaya and Indo-Burma biodiversity hot-spots. It is a large-scale multipurpose landscape consisting of a mosaic of crops, livestock and forest. The landscape also ensures almost all the ecosystem services that con-tribute to the well-being of more than 100 diverse ethnic groups (indigenous people) in the region. However, in recent years, rapid transition in the form of promotion and expansion of oil palm and rubber plantations as mooted and supported by the state has posed threats to the ecosystem and biodiversity especially the biocultural landscapes. Supported by empirical evidence (primary and secondary data), this study argues that as we increase the intensity of production or harvest of such crops, the environmental cost becomes unprecedented and immense to be offset by economic gain. The use of renewable bio-logical resources as the foundation for a bioeconomy must be regulated in terms of environmental impact ra-ther than short-term financial dividends. Therefore, we need to develop optimization models for the biocultural landscape(s) that determine land use based on what is both economically and environmentally optimal.Keywords
Bioeconomy, food security, jhum, multipur-pose landscape, plantations crops.Full Text
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Authors
Affiliations
1 College of Horticulture and Forestry, Central Agricultural University (Imphal), Pasighat 791 102, India., IN
2 ICAR-Agricultural Technology Application Research Institute, Kanpur 278 002, India., IN
1 College of Horticulture and Forestry, Central Agricultural University (Imphal), Pasighat 791 102, India., IN
2 ICAR-Agricultural Technology Application Research Institute, Kanpur 278 002, India., IN
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Current Science, Vol 124, No 9 (2023), Pagination: 1033-1038Abstract
The institutional herbal garden for North East region (NER) of India was established in 2014 wherein medicinal and aromatic plant (MAPs) species were brought from different ecologies experienced differential survival. This triggered the participation of local citizens in developing the science of herbal biodiversity in this region. Consequently, MAPs were collected from the forest and farmers’ fields in different parts of NER. This resulted in better survival of the species from tropical to sub-temperate conditions of NER. Over eight years, 164 MAPs have been conserved in the herbal garden representing 60 families comprising herbs (84), shrubs (45), climbers (15), trees (15) and grasses (5). The herbal garden at Pasighat conserves over 50% of the species documented nationwide including nine of the threatened species of India. Thus, the herbal gardens endorsing citizen science is instrumental for the widespread sharing of scientific expertise and stewardship on healing herbs.Keywords
Biodiversity, Citizen Science, Indigenous Materials, Institutional Herbal Garden, Traditional Resource.Full Text
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