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- Kamya Verma
- Sunny Goel
- Juhi Aggarwal
- Mayur Kumar
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- Mamta Kumari
- Rajive Kumar
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- P. C. Mehendru
- Mohan Lal
- M. R. Dabbas
- Sanjive KR. Singh
- Shrawan Kumar
- Brij Vikash
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- Neha
- Dhananjay Kumar
- Preeti Shukla
- Sanjeev Kumar
- Kuldeep Bauddh
- Jaya Tiwari
- Neetu Dwivedi
- S. C. Barman
- D. P. Singh
- Jagadheswaran Rajendran
- Sofiyah Sal Hamid
- Shukri Korakkottil Kunhi Mohd
- Mohd Zaid Abdullah
- Harikrishnan Ramiah
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- K. T. Ramya
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- Antara Sinha
- Parkhi Mehta
- Shaavi Mittal
- Rohan Sirohi
- Amit Kumar
- G. K. Dwivedi
- Salil Tewari
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Kumar, Narendra
- Effects of Active Smoking on Heart Rate Variability, Heart Rate & Various Other Cardiac Risk Events in Chronic Smokers
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Authors
Affiliations
1 Assistant Professor, Department of Internal Medicine
2 Assistant Professor, Department of Physiology
3 Senior Resident, Department of Pathology
4 Junior Resident, Department of Internal Medicine, Saraswathi Institute of Medical Sciences, Hapur, Uttar Pradesh
1 Assistant Professor, Department of Internal Medicine
2 Assistant Professor, Department of Physiology
3 Senior Resident, Department of Pathology
4 Junior Resident, Department of Internal Medicine, Saraswathi Institute of Medical Sciences, Hapur, Uttar Pradesh
Source
International Journal of Physiology, Vol 1, No 2 (2013), Pagination: 77-81Abstract
Background: Smoking increases the risk of vasospasm and arrhythmias, and may decrease heart rate variability (HRV). Shown to increase the risk for cardiovascular diseases and autonomic dysfunction specifically, reduced heart rate variability (HRV)) is a predictor of increased cardiac risk however, no study has till now has evaluated the time onset of these electrophysiological changes following smoking.
Method: Male smokers with atypical chest pain were screened with TMT. A total of 31 patients in whom TMT was either negative or mildly positive, underwent a 24-hour holter monitoring and were asked to note down the time of smoking.
Results: Heart rate increased significantly during smoking and came back to normal after 30 minutes. Smoking is also associated with an increased risk of ectopics (mean of 5.28 prior to smoking to 9.81 per hour during smoking to 11.29 during the next hour after smoking p 0.001). 3 patients had significant ST-T changes after smoking that lasted for half to two hours. HRV index is significantly decreased in smokers but spectral parameters- SDNN, RMSSD and SDANN remained normal.
Conclusion: Smoking increases heart rate and ectopic significantly. Ischemic ST-T changes were also detected during smoking. Spectral parameters of HRV analysis of smoker remained with normal limits but more important geometrical parameter -HRV index showed significant abnormality.
Keywords
HRV Heart Rate Variability, TMT Treadmill Test
References
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- A Study of Oxidative Stress and Altered Endothelial Cell Function in Preeclampsia
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Authors
Affiliations
1 Department of Biochemistry, Santosh Medical College and Hospital, Ghaziabad- 201009, IN
2 Department of Biochemistry, VMMC and Safdarjang Hospital, Delhi- 110029, IN
3 Department of Physiology, Santosh Medical College and Hospital, Ghaziabad- 201009, IN
1 Department of Biochemistry, Santosh Medical College and Hospital, Ghaziabad- 201009, IN
2 Department of Biochemistry, VMMC and Safdarjang Hospital, Delhi- 110029, IN
3 Department of Physiology, Santosh Medical College and Hospital, Ghaziabad- 201009, IN
Source
Indian Journal of Public Health Research & Development, Vol 3, No 2 (2012), Pagination: 72-75Abstract
Preeclampsia is a complex multisystem disorder characterized by hypertension and proteinuria. It is one of the most common and potentially fatal complications of pregnancy. A case control study was carried out to assess the levels of homocysteine, lipid peroxidation and antioxidant status in patients with preeclampsia. Fasting venous samples were collected during antepartum period and serum levels of homocysteine (Hcy), malondialdehyde (MDA), ascorbic acid (vitamin C) and uric acid were measured. In the preeclamptic group, Hcy and MDA levels were significantly raised while antioxidant ascorbic acid level was significantly reduced (p < 0.01) and uric acid concentration was increased significantly (p <0.01). These findings suggest that Hcy and lipid peroxidation are associated with preeclampsia. In preeclampsia, antioxidants are extensively utilized to counter act the cellular changes and endothelial dysfunction mediated by oxidative stress. Placental oxidative stress which results from the ischemic reperfusion injury is reported to be involved in the etiopathogenesis of preeclampsia.Keywords
Preeclampsia, Homocysteine, Lipid Peroxidation, AntioxidantsReferences
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- Agrawal A, Gupta S, Sharma R. Oxidative stress and its complications in female infertility – a clinician perspective. Reprod Biomed 2005; II (5): 641-650.
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- Raijmakers MT, DeChend R, Poston L. Oxidative stress and preeclampsia: rationale for antioxidant Oxidative stress and preeclampsia clinical trials. Hypertension 2004; 44: 374- 380.
- Gastrich MD, Faro R, Rosen T. Markers of preeclampsia and the relationship to cardiovascular disease: review of the twenty first century literature. Journal of Maternal, Fetal and Neonatal Medicine 2010; 23(8): 751- 768.
- Shibata E, Nanri H, Ejima K. Enhancement of mitochondrial oxidative stress and upregulation of antioxidant protein peroxidation III/ SP-22 in the mitochondria of preeclamptic placentae. Placenta 2003; 24: 698- 705.
- Van Beck E, Peeters LL. Pathogenesis of preeclampsia: a comprehensive model. Obstet Gynecol Surv 1998; 53: 233-239.
- Gupta S, Agrawal A, Sharma RK. The role of placental oxidative stress and lipid peroxidation in preeclampsia. Obstet Gynecol Surv 2005; 60 (12): 807- 817.
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- Sharma JB, Sharma L, Bahadur A, Vimala N, Satyam A, Mittal S. Oxidative stress markers and antioxidant levels in normal pregnancy and preeclampsia. International Journal of Gynecology and Obstetrics 2006; 94: 23-27.
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- Vanderjagt DJ, Patel RJ, EL- Nafty AU, Melah GS, Crossey MJ. High density lipoprotein and homocysteine levels correlate inversely in preeclamptic women in Northern Nigeria. Acta Obstetricia et Gynecologica Scandinavica 2004; 83 (6): 536- 542.
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- Riza Madazali, Ali Benian Koray Gumata. Lipid peroxidation and antioxidants in preeclampsia. Eur J Obstet Gynecol and Reprod Biol 1999; 85 (2): 205-208.
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- Prevalence of Malnutrition among Pre-school Children of Khagaria District of Bihar
Abstract Views :390 |
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Authors
Affiliations
1 Krishi Vigyan Kendra, Geku Upper Siang, A.P., IN
2 Krishi Vigyan Kendra, Jairampur, Changlang, A.P., IN
3 Krishi Vigyan Kendra, Auraiya, U.P., IN
4 Department of Home Science, Tilka Manjhi Bhagalpur University, Bhagalpur, Bihar, IN
1 Krishi Vigyan Kendra, Geku Upper Siang, A.P., IN
2 Krishi Vigyan Kendra, Jairampur, Changlang, A.P., IN
3 Krishi Vigyan Kendra, Auraiya, U.P., IN
4 Department of Home Science, Tilka Manjhi Bhagalpur University, Bhagalpur, Bihar, IN
Source
Food Science Research Journal, Vol 4, No 2 (2013), Pagination: 164-166Abstract
The present study was conducted on randomly selected 100 pre-school children of Pansalwa village of Beldaur block of Khagaria district of Bihar. Gomez as well as Waterlow's classification and MUAC value were used as tools to assess per cent prevalence of malnutrition among children. An equal per cent (33%) of children had been assessed as 'normal' according to Gomez as well as Waterlow's classification. A major per cent (55%) of children was categorized under 'Mild Malnutrition' grade, whereas, 12 per cent children were moderately malnourished according to Gomez classification. According to Waterlow's classification 77 per cent children were assessed as stunted. MUAC value put on records 37 per children under normal, 56 per cent under moderate and 7 per cent under severe malnutrition category.Keywords
Prevalence, Malnutrition, Gomez Classification, Waterlow’s Classification, Mid Upper Arm Circumference (MUAC)- Vocational interests of science and arts stream students of senior secondary schools
Abstract Views :491 |
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Authors
Affiliations
1 Department of Education, N.A.S. College, Meerut, IN
2 Department of Education, S.G.P.G. College, Sarurpurkhurd, Meerut, IN
1 Department of Education, N.A.S. College, Meerut, IN
2 Department of Education, S.G.P.G. College, Sarurpurkhurd, Meerut, IN
Source
International Journal of Education and Management Studies, Vol 2, No 2 (2012), Pagination: 261-263Abstract
This study attempts to assess the vocational interests of the science and arts stream students of senior secondary Schools. A sample of 200 students was randomly selected from different Schools of Meerut province. They were administered Vocational Interests Record developed by S.P. Kulshrestha, which measures 10 dimensions of vocational interests. Results show that the science and arts stream students of senior secondary schools were found to be differed significantly on the vocational interest's dimensions Literacy vocational interests, Scientific vocational interests, Executive vocational interests, Commercial vocational interests, Constructive vocational interests, Artistic vocational interests, Agriculture vocational interests, Persuasive vocational interests, and House Hold vocational interests. However, no difference was observed between science and arts stream students on the dimension social vocational interests.Keywords
Vocational Interests, Students- Psychological Stress and its Relationship with Achievement of Science Students of Public Schools
Abstract Views :250 |
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Authors
Affiliations
1 Department of Education, S.G.P.G. College, Sarurpurkhurd, Meerut, IN
2 Department of Education, N.A.S. College, Meerut, IN
1 Department of Education, S.G.P.G. College, Sarurpurkhurd, Meerut, IN
2 Department of Education, N.A.S. College, Meerut, IN
Source
Indian Journal of Health and Wellbeing, Vol 3, No 2 (2012), Pagination: 491-493Abstract
This study attempts to assess the psychological stress and its relationship with achievement among senior secondary science students of Public Schools. A sample of students was randomly selected from different Public Schools of Meerut province. They were administered Psychological Stress Scale for Science Students developed by researcher itself which measures 12 dimensions of psychological stress. Results show that the stress dimension examination and Achievement has been emerged as the major factor causing stress, while society as the least causing factor for stress. Negative and significant correlation was observed between achievement and total psychological stress and all its dimensions. The findings from the present study would benefit various parties in the country in planning and conducting necessary programmes for the students so that stress-related factors could be reduced and better academic performance could be achieved by the students.Keywords
Achievement, Psychological Stress, Public Schools, Science Students.- Psychological Stress and its Relationship with Achievement of Science Students of Govt. Aided Schools
Abstract Views :261 |
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Authors
Affiliations
1 Department of Education, S.G.P.G. College, Sarurpurkhurd, Meerut, IN
2 Department of Education, N.A.S. College, Meerut, IN
1 Department of Education, S.G.P.G. College, Sarurpurkhurd, Meerut, IN
2 Department of Education, N.A.S. College, Meerut, IN
Source
Indian Journal of Health and Wellbeing, Vol 3, No 1 (2012), Pagination: 131-133Abstract
This study attempts to assess the psychological stress and its relationship with achievement among senior secondary science students of Govt. Aided Schools. A sample of students was randomly selected from different Govt. Aided Schools of Meerut province. They were administered Psychological Stress Scale for Science Students developed by researcher itself which measures 12 dimensions of psychological stress. Results show that the stress dimension Examination and Achievement has been emerged as the major factor causing stress, while workload in science as the least causing factor for stress. Negative and significant correlation was observed between achievement and psychological stress dimension workload in science and communication problems and no significant relationship was observed between achievement and total psychological stress and its all dimensions.Keywords
Psychological Stress, Achievement of Students.- Development and Production of Electrostatic Photocopying Machines in India
Abstract Views :181 |
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Authors
Affiliations
1 National Physical Laboratory, New Delhi 110012, IN
1 National Physical Laboratory, New Delhi 110012, IN
Source
Journal of Information and Knowledge (Formerly SRELS Journal of Information Management), Vol 17, No 4 (1980), Pagination: 93-96Abstract
Presents the developmental activities in the innovation of electrostatic copying processes and machines in India. Suggests lines of development for future programmes in India on electrophotography.- Influence of Psychological Stress on Achievement of Senior Secondary Science Students
Abstract Views :182 |
PDF Views:1
Authors
Affiliations
1 Department of Education, S.G.P.G. College, Sarurpurkhurd, Meerut, UP, IN
2 Department of Education, N.A.S. College, Meerut, UP, IN
1 Department of Education, S.G.P.G. College, Sarurpurkhurd, Meerut, UP, IN
2 Department of Education, N.A.S. College, Meerut, UP, IN
Source
International Journal of Education and Management Studies, Vol 5, No 1 (2015), Pagination: 43-47Abstract
This study attempts to assess the influence of psychological stress on achievement of senior secondary science students. A sample of 631 students was randomly selected from different types of institutions of Meerut province. They were administered Psychological Stress Scale for Science Students (PSSSS) developed by the researcher himself. PSSSS was constructed around 12 dimensions of psychological stress. Mean, S.D., Pearson Product Moment Coefficient of Correlation and Regression analysis were used to analyze the data. Negative and significant correlation was observed between achievement and total psychological stress and its all dimensions. Contribution of total psychological stress on achievement of total science students was significant. Only two dimensions (content of science and health) contributed significantly on achievement of total science students.Keywords
Psychological Stress, Science Students, Achievement, Army Schools.- Efficacy of Various Bio-Agents and Plant Extract against Septoria lycopersici
Abstract Views :152 |
PDF Views:1
Authors
Affiliations
1 Department of Vegetable Science, C.S. Azad University of Agriculture and Technology, Kanpur (U.P.), IN
1 Department of Vegetable Science, C.S. Azad University of Agriculture and Technology, Kanpur (U.P.), IN
Source
International Journal of Plant Protection, Vol 9, No 1 (2016), Pagination: 177-182Abstract
Tomato is a very remunerative crop among vegetables which is largely affected by fungal, bacterial, nematodel, phytoplasma and viral diseases. Studies on the radial growth of the fungus in various treatments was measured and the average diameter of the colony was calculated. However, among the five bio-agents and five plant extract viz., Trichoderma viride (50.56%), Trichoderma harzianum (45.56%), Pseudomonas fluorescens (44.45%), Trichoderma virens (30.56%) and Trichoderma hamatum(25.56%) proved to be the most effective as they have inhibited the growth pathogen. Neem (Azadirachta indica) 47.13 per cent, were most effective in inhibiting the fungal growth. ginger (Zingiber officinale) 45.98 per cent, garlic (Allium sativum L.) 43.68 per cent, onion (Allium cepa L.) 41.37 per cent and mustard (Brassica nigra) 26.44 per cent was least effective in checking the mycelial growth of the test fungus. The mean of analysis of two years data revealed that, the minimum disease intensity (12.05%) and maximum fruit yield 18.92 kg/plot were recorded in foliar spray of Trichoderma harzianum 4g/lit of water, next best effective bio-agent was Trichoderma viride 4g/lit of water which gave 15.85 kg/plot fruit yield.Keywords
Bio-Agents, Septoria lycopersici, Tomato, Mustard.- A Comparative Study on Working Pattern of Elected Representatives and Government Officials in Panchayati Raj System
Abstract Views :396 |
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Authors
Affiliations
1 Krishi Vigyan Kendra, Parwaha, Dibiyapur, Auraiya (U.P.), IN
2 Krishi Vigyan Kendra, Geku, Upper Siang, (Arunachal Pradesh), IN
3 Krishi Vigyan Kendra, Auraiya (Uttar Pradesh), IN
4 Krishi Vigyan Kendra, Changlang (Arunachal Pradesh), IN
5 K.A.P.G. College, Allahabad (U.P.), IN
1 Krishi Vigyan Kendra, Parwaha, Dibiyapur, Auraiya (U.P.), IN
2 Krishi Vigyan Kendra, Geku, Upper Siang, (Arunachal Pradesh), IN
3 Krishi Vigyan Kendra, Auraiya (Uttar Pradesh), IN
4 Krishi Vigyan Kendra, Changlang (Arunachal Pradesh), IN
5 K.A.P.G. College, Allahabad (U.P.), IN
Source
Agriculture Update, Vol 7, No 1-2 (2012), Pagination: 110-112Abstract
A comparative study on working pattern of respondents viz., Government officials (75) and elected representatives (75) and elected representatives were undertaken and they were interviewed with the help of schedule. A largest section of Government officials (60%) were having working pattern score between 15-37 followed by 21.33 per cent respondents with scored < 37. In case of elected representatives, 69.4 per cent respondent were having score between 18-37 and 13.3 per cent respondents were having score more than 37 for their working pattern. A positive correlation was obtained for both the groups of respondents in case of association between their working pattern and selected independent variables like occupation, family size and social participation.Keywords
Panchayati Raj System, Government Officials, Elected Representatives, Level of Awareness.- Area and Extent Development of Elected Representatives and Government Officials in Panchayati Raj System
Abstract Views :177 |
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Authors
Affiliations
1 Krishi Vigyan Kendra, Auriaya (U.P.), IN
2 Krishi Vigyan Kendra, Geku, Upper Siang (Arunachal Pradesh), IN
3 Krishi Vigyan Kendra, Auraiya (Uttar Pradesh), IN
4 Krishi Vigyan Kendra, Changlang (Arunachal Pradesh), IN
5 K.A.P.G. College, Allahabad (U.P.), IN
1 Krishi Vigyan Kendra, Auriaya (U.P.), IN
2 Krishi Vigyan Kendra, Geku, Upper Siang (Arunachal Pradesh), IN
3 Krishi Vigyan Kendra, Auraiya (Uttar Pradesh), IN
4 Krishi Vigyan Kendra, Changlang (Arunachal Pradesh), IN
5 K.A.P.G. College, Allahabad (U.P.), IN
Source
Agriculture Update, Vol 7, No 1-2 (2012), Pagination: 126-128Abstract
The study aimed in investigating area and extent of development of respondents in Panchayati Raj system. Out of a total of 150 respondents 75 elected representatives and 75 government officials from three tier structure of Panchayat bodies were interviewed with the help of structured interview schedule. Majority of the Government officials (56%) where having medium level rank (41-77) of area and extent of development, a companied by 22.66 per cent with high level (rank 77) and 21.33 per cent with low level (rank 41). However, 70.66 per cent of elected representatives having rank between 46-74, acompanied by 14.6 per cent respondents with high ranking more than 74 revealed that Government officials have positive correlation with their education, cast and farm power. Whereas elected representative had negative correlation with their age and positive correlation with caste and occupation. There was difference between two categories with regard to area and extent of development due to variation in their education and occupation.Keywords
Panchayati Raj System, Government Officials, Elected Representatives, Level of Awareness.- Metal Distribution in the Sediments, Water and Naturally Occurring Macrophytes in the River Gomti, Lucknow, Uttar Pradesh, India
Abstract Views :263 |
PDF Views:69
Authors
Neha
1,
Dhananjay Kumar
1,
Preeti Shukla
1,
Sanjeev Kumar
1,
Kuldeep Bauddh
2,
Jaya Tiwari
1,
Neetu Dwivedi
1,
S. C. Barman
3,
D. P. Singh
1,
Narendra Kumar
1
Affiliations
1 Department of Environmental Science, Babasaheb Bhimrao Ambedkar University, Lucknow 226 025, IN
2 Centre for Environmental Sciences, Central University of Jharkhand, Ranchi 835 205, IN
3 Environmental Monitoring Division, Indian Institute of Toxicology Research, Lucknow 226 001, IN
1 Department of Environmental Science, Babasaheb Bhimrao Ambedkar University, Lucknow 226 025, IN
2 Centre for Environmental Sciences, Central University of Jharkhand, Ranchi 835 205, IN
3 Environmental Monitoring Division, Indian Institute of Toxicology Research, Lucknow 226 001, IN
Source
Current Science, Vol 113, No 08 (2017), Pagination: 1578-1585Abstract
River Gomti receives treated/untreated industrial as well as municipal wastes from various drains of Lucknow city, India. In order to study heavy metal pollution (Cd, As, Pb and Cu) in the river, water and sediment samples were collected from 10 sampling stations along a 9 km stretch in the city of Lucknow. Results revealed that the concentrations of heavy metals in water samples were in the range: As: 0.035-0.061, Cd: 0.016-0.068, Cu: 0.029-0.062 and Pb: 0.031-0.065 mg l-1 whereas in sediments metal concentrations were found to be As: 3.72-14.98, Cd: 1.91-8.39, Cu: 8.97-95.35 and 35.82-90.92 μg g-1. Bioaccumulation of these metals was assessed in four aquatic macrophytes, viz. Pistia stratiotes, Eichhornia crassipes, Polygonum coccineum and Marsilea quadrifolia. Pistia stratiotes and Polygonum coccineum accumulated maximum amount of Pb followed by Cu, Cd and As, whereas in the case of Eichhornia crassipes and Marsilea quadrifolia the relative metal accumulation pattern was found as Cu > Cd > Pb > As and Cu > Pb > Cd > As respectively. The present study suggests that though the concentrations of toxic metals were lower in water, chronic exposure could result in bioaccumulation to a degree many-fold higher than in growing medium. It was also concluded that the water and sediment of the river should be regularly monitored for heavy metal contamination and care should be taken while using river water in agriculture/ aquaculture.Keywords
Bioaccumulation, Gomti River, Heavy Metals, Macrophytes, Sediments.Full Text
References
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- An Integrated Linearization Technique for GaAs Bipolar WCDMA Power Amplifier
Abstract Views :270 |
PDF Views:83
Authors
Jagadheswaran Rajendran
1,
Sofiyah Sal Hamid
1,
Shukri Korakkottil Kunhi Mohd
1,
Mohd Zaid Abdullah
1,
Harikrishnan Ramiah
2,
Narendra Kumar
2
Affiliations
1 Collaborative Microelectronic Design Excellence Centre, School of Electrical and Electronic Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Pulau Pinang, MY
2 Department of Electrical Engineering, University of Malaya, 50603 Kuala Lumpur, MY
1 Collaborative Microelectronic Design Excellence Centre, School of Electrical and Electronic Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Pulau Pinang, MY
2 Department of Electrical Engineering, University of Malaya, 50603 Kuala Lumpur, MY
Source
Current Science, Vol 114, No 02 (2018), Pagination: 308-313Abstract
Here we report a novel linearization and efficiency improvement technique for heterojunction bipolar transistor (HBT)-based Wireless Code Division Multiple Access (WCDMA) power amplifier. A process solution is proposed where a tantalum nitride (TaN) layer is strapped to the HBT base metal layer that resolves the current hogging issue. This is known as the strap ballasting technique. The resistance introduced by TaN improves the linear output power without trading-off its power added efficiency. At supply voltage of 4 V, the strap ballasting methodology improves the adjacent channel leakage ratio by 4.5 dB compared to the conventional base ballasting technique at output power of 28 dBm. The corresponding improvement in power added efficiency is 4%. The maximum output power delivered by power amplifier is 36 dBm. The proposed technique can be employed in the WCDMA power amplifier to minimize the fundamental trade-off issue between linear output power and efficiency.Keywords
Heterojunction Bipolar Transistor, Linearization, Power Amplifier, Strap Ballasting Technique.Full Text
References
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- Low Phytic Acid Peanut:A Potential Tool to Overcome Mineral Malnutrition in Humans
Abstract Views :455 |
PDF Views:72
Authors
B. C. Ajay
1,
D. Kambiranda
2,
S. K. Bera
1,
Narendra Kumar
1,
K. Gangadhar
1,
R. Abdul Fiyaz
3,
K. T. Ramya
4
Affiliations
1 ICAR-Directorate of Groundnut Research, Post Box 5, Ivnagar Road, Junagadh 362 001, IN
2 Centre for Viticulture and Small Fruit Research, Florida A&M University, 6505 Mahan Drive Tallahassee, Florida 32317, US
3 ICAR-Indian Institute of Rice Research, Rajendranagar, Hyderabad 500 030, IN
4 ICAR-Indian Institute of Oilseeds Research, Rajendranagar, Hyderabad 500 030, IN
1 ICAR-Directorate of Groundnut Research, Post Box 5, Ivnagar Road, Junagadh 362 001, IN
2 Centre for Viticulture and Small Fruit Research, Florida A&M University, 6505 Mahan Drive Tallahassee, Florida 32317, US
3 ICAR-Indian Institute of Rice Research, Rajendranagar, Hyderabad 500 030, IN
4 ICAR-Indian Institute of Oilseeds Research, Rajendranagar, Hyderabad 500 030, IN
Source
Current Science, Vol 114, No 06 (2018), Pagination: 1165-1166Abstract
Malnutrition affects over one billion people worldwide and thus one out of six humans is malnourished. Though the green revolution solved the problem of malnutrition to the great extent, people living in developing and under-developed countries still face micronutrient malnutrition, which is a result of imbalanced diet and intake of insufficient micronutrients. Iron and zinc deficiencies together contributing to loss to GDP is at least US$ 5 billion in China and India alone.Full Text
References
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- Effect of TCSC on Power System Stability
Abstract Views :188 |
PDF Views:0
Authors
Vipin Jain
1,
Narendra Kumar
2
Affiliations
1 Electrical Engineering Department, Bharat Institute of Technology, Meerut-250103, IN
2 Electrical Engineering Department, Delhi Technological University, Delhi - 110042, IN
1 Electrical Engineering Department, Bharat Institute of Technology, Meerut-250103, IN
2 Electrical Engineering Department, Delhi Technological University, Delhi - 110042, IN
Source
Power Research, Vol 11, No 4 (2015), Pagination: 641-650Abstract
In FACTS devices supplementary signals are widely used to mitigate sub synchronous resonance in power system. Sub synchronous resonance occurs due to series capacitor in the power systems. In this paper Effect of TCSC on power system performance is studied and it is shown that TCSC can bring down SSR frequency and at high value of series capacitive reactance it can stabilize all the modes of turbine- generator set without supplementary signal. The study system is IEEE first benchmark model. Modeling of IEEE first benchmark model with TCSC is also presented in this paper. Small signal stability and Large signal stability both are carried out in this paper.Keywords
TCSC, Power System Stability, IEEE First Benchmark Model, Sub Synchronous Resonance- Damping of Oscillations in Series Compensated Power System through Wide Area Damping Controller of STATCOM
Abstract Views :182 |
PDF Views:0
Authors
Vipin Jain
1,
Narendra Kumar
2
Affiliations
1 Electrical Engineering Department, Bharat Institute of Technology, Meerut - 250103, IN
2 Professor, Electrical Engineering Department, Delhi Technological University, Delhi - 110042, IN
1 Electrical Engineering Department, Bharat Institute of Technology, Meerut - 250103, IN
2 Professor, Electrical Engineering Department, Delhi Technological University, Delhi - 110042, IN
Source
Power Research, Vol 12, No 4 (2016), Pagination: 753-763Abstract
In FACTS devices auxiliary signals are widely used to enhance damping and mitigation of Subsynchronous Resonance in Power System. Choice of auxiliary signal is indeed a difficult choice. Auxiliary signal may be local signal or remote signal. In this paper STATCOM is installed in the middle of Power system and it is shown that deviation in speed of generator rotor is one of the most suitable auxiliary signal. This signal is a remote signal hence a suitable time delay is considered. Study system is IEEE first benchmark model. Modeling of STATCOM with IEEE first benchmark model is presented in detail. All the differential equations and initial conditions are presented in the paper. Both, small signal and large signal stabilities are carried out.Keywords
STATCOM, auxiliary signals, power system stability, IEEE first benchmark model, Wide area damping controller.- Designing of supplementary controller for statcom for mitigation of sub-synchronous resonance in series compensated power system
Abstract Views :219 |
PDF Views:0
Authors
Vipin Jain
1,
Narendra Kumar
2
Affiliations
1 Electrical Engineering Department, Bharat Institute of Technology, Meerut - 250103, IN
2 Electrical Engineering Department, Delhi Technological University, Delhi - 110042, IN
1 Electrical Engineering Department, Bharat Institute of Technology, Meerut - 250103, IN
2 Electrical Engineering Department, Delhi Technological University, Delhi - 110042, IN
Source
Power Research, Vol 10, No 4 (2014), Pagination: 641-652Abstract
In FACTS devices supplementary signals are widely used to enhance damping and mitigation of Subsynchronous Resonance in Power System. Subsynchronous Resonance occurs due to series capacitor in the Power Systems. High value of series capacitive reactance may destabilize low frequency mode which is more dangerous. In this paper modeling of STATCOM with IEEE first benchmark model is presented. Then a supplementary signal is developed which is capable to make the system stable for all critical values of series compensation. The eigenvalues are presented for all four critical values of series compensation.Keywords
STATCOM, supplementary signals, power system stability, IEEE first benchmark model.- Mitigation of Subsynchronous Resonance in Power System through STATCOM and Auxiliary Controller
Abstract Views :202 |
PDF Views:0
Authors
Vipin Jain
1,
Narendra Kumar
2
Affiliations
1 Electrical Engineering Department, Bharat Institute of Technology, Meerut-250 103, IN
2 Electrical Engineering Department, Delhi Technological University, Bawana Road, Delhi-110 042, IN
1 Electrical Engineering Department, Bharat Institute of Technology, Meerut-250 103, IN
2 Electrical Engineering Department, Delhi Technological University, Bawana Road, Delhi-110 042, IN
Source
Power Research, Vol 10, No 2 (2014), Pagination: 239-244Abstract
In FACTS devices, auxiliary signals are widely used to enhance damping and mitigate Subsynchronous Resonance in Power System. Subsynchronous Resonance occurs due to series capacitor in Power System. In this paper a novel auxiliary controller of STATCOM is designed with auxiliary signal ωg i.e. accelerating frequency of generator rotor mode. Auxiliary controller is superimposed on conventional PI controller. The study system is IEEE First Benchmark Model. Alone PI is not able to damp all the modes of First Benchmark Model.Keywords
STATCOM, Auxiliary signals, Accelerating frequency, PI controller, IEEE First Benchmark Model.- Household use Patterns of Iodized Salt in Urban Slums of Meerut
Abstract Views :201 |
PDF Views:0
Authors
Chhavi Kiran Gupta
1,
Antara Sinha
1,
Parkhi Mehta
1,
Shaavi Mittal
1,
Rohan Sirohi
1,
Narendra Kumar
1
Affiliations
1 Dept of Community Medicine, Subharti Medical College, Meerut, IN
1 Dept of Community Medicine, Subharti Medical College, Meerut, IN
Source
Indian Journal of Public Health Research & Development, Vol 10, No 11 (2019), Pagination: 15-20Abstract
Background: The present study was carried out to estimate the consumption of adequate iodized salt by PSI salt testing kit, knowledge related to the health benefits of iodine and practices with respect to storage and use of iodized salt at the household level in the field practice area of Subharti Medical College, Meerut.
Aims:To assess the level of knowledge and salt keeping practices among the households and to estimate the iodine content of salt and its determinants in those households.
Settings and Design:This Cross Sectional study was conducted in 250 households in urban slums in Multan Nagar, Meerut by taking verbal informed consent from the family followed by interview with a self-designed schedule.
Method and Material: The households were selected by simple random sampling and rapid PSI (Plasti Surge Industries) spot testing kit was used in the survey to assess iodine content in the salt used in those households.
Statistical analysis used: The collected data was entered in Microsoft excel and analyzed using SPSS software version 19.0.
Results: More than half of the households (65.2%) had no knowledge regarding iodized salt and nearly 3/4th of the households (73.6%) had no knowledge about benefits of iodized salt. Practice regarding keeping the salt was found to be good as 98.8% of households stored salt in containers with lid and 96.8% buy packet salt.
Conclusions: There is a pertinent need for health education regarding proper use and keeping practices of iodized salt. For the prevention of iodine deficiency disorders, education campaigns should reach grass ischolar_main level.
Keywords
Iodized Salt, PSI Salt Testing Kit, Households.References
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- Soil Organic Carbon Pools under Terminalia chebula Retz. based Agroforestry Systemin Himalayan Foothills, Indiax
Abstract Views :243 |
PDF Views:83
Authors
Amit Kumar
1,
G. K. Dwivedi
1,
Salil Tewari
1,
Jaipaul
1,
V. K. Sah
1,
Hukum Singh
2,
Parmanand Kumar
2,
Narendra Kumar
2,
Rajesh Kaushal
3
Affiliations
1 Agroforestry Section, College of Agriculture, G.B. Pant University of Agriculture and Technology, Pantnagar, U.S. Nagar 243 145, IN
2 Forest Ecology and Climate Change Division, Forest Research Institute, Dehradun 248 006, IN
3 ICAR-Indian Institute of Soil and Water Conservation, Dehradun 248 001, IN
1 Agroforestry Section, College of Agriculture, G.B. Pant University of Agriculture and Technology, Pantnagar, U.S. Nagar 243 145, IN
2 Forest Ecology and Climate Change Division, Forest Research Institute, Dehradun 248 006, IN
3 ICAR-Indian Institute of Soil and Water Conservation, Dehradun 248 001, IN
Source
Current Science, Vol 118, No 7 (2020), Pagination: 1098-1103Abstract
Knowledge of carbon (C) pools in soils is helpful in devising practices for efficient carbon management in intensive cropping systems. Carbon fractions of soil organic carbon are used asan indicator for land-use induced change in soil quality. The present study evaluated carbon pools under Terminalia chebula(chebulic myrobalan) based agroforestry system supplied with different nutrient sources, viz. farmyard manure, poultry manure, vermicompost, wheat straw and inorganic fertilizer (NPK @ 100:80:60). Carbon fractions, viz. very labile (C1 frac), labile (C2 frac), less labile (C3 frac) and non-labile (C4 frac), were analysed at 0–15 and 15–30 cm soil depth. The higher value of C1 frac (13.8%), C2 frac (4.8%), C3 frac (8.3%) and C4 frac(11.1%) were recorded under agroforestry as compared to open system. Among the nutrient sources, all the carbon fractions were higher under 100% integrated nutrient sources as compared to controlled treatment. Microbial biomass carbon (MBC) was recorded higher (298.31 μg g–1 ) under agroforestry system compared to the open system (290.63 μg g–1 ) at 0–15 cm. Among the different nutrient sources, higher MBC (458.66 μg g–1 ) at 0–15 cm and lower (340.59 μg g–1 ) at 15–30 cm soil depth was recorded in 100% integrated treatment.Thus, agroforestry-based land-use types and integrated nutrient management are more efficient for soil health and carbon management in Himalayan foothills.Keywords
Active Pool, Carbon Fractions, Labile, Nonlabile, Nutrient Sources, Passive Pool.Full Text
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- Biomass Accumulation and Carbon Stock in Different Agroforestry Systems Prevalent in the Himalayan Foothills, India
Abstract Views :232 |
PDF Views:77
Authors
Amit Kumar
1,
Salil Tewari
2,
Hukum Singh
1,
Parmanand Kumar
1,
Narendra Kumar
1,
Sarita Bisht
1,
Suruchi Devi
1,
Nidhi
1,
Rajesh Kaushal
3
Affiliations
1 Forest Research Institute, Dehradun 248 006, IN
2 G. B. Pant University of Agriculture and Technology, Pantnagar 263 145, IN
3 ICAR-Indian Institute of Soil and Water Conservation, Dehradun 248 001, IN
1 Forest Research Institute, Dehradun 248 006, IN
2 G. B. Pant University of Agriculture and Technology, Pantnagar 263 145, IN
3 ICAR-Indian Institute of Soil and Water Conservation, Dehradun 248 001, IN
Source
Current Science, Vol 120, No 6 (2021), Pagination: 1083-1088Abstract
Agroforestry has great potential for carbon (C) sequestration among different land uses of the Himalayan region, India. However, our knowledge of C sequestration in particular, agroforestry system around the world is poor. Therefore, we conducted a study to understand biomass accumulation and carbon allocation in different components of the agroforestry system. The highest stem biomass was recorded in Eucalyptus tereticornis (69.43 ± 0.90 Mg ha–1), branch biomass in Populus deltoids (5.04 ± 0.35 Mg ha–1), leaf biomass also in P. deltoids (2.21 ± 0.12 Mg ha–1), and ischolar_main biomass in Albizia procera (14.01 ± 0.44 Mg ha–1). The highest (81.01%) C allocation was recorded in the stem of Toona ciliate, branch of P. deltoids (5.73%), leaves of E. tereticornis (2.93%) and ischolar_main of Anthocephalus cadamba (16.83%). The highest CO2< mitigation (160.5 ± 2.55 Mg CO2 ha–1) and C sequestration (45.33 ± 0.60 Mg ha–1) were recorded in E. tereticornis. The highest wheat crop biomass (11.85 ± 0.23 Mg ha–1) and C stock (3.59 ± 0.05 Mg ha–1) were recorded in P. deltiodes. However, soil carbon stock was recorded in E. tereticornis (37.5 ± 3.52 Mg ha–1). Thus, trees on farmlands with crops are suitable for biomass production and C allocation in different components under changing climatic scenarios.Keywords
Agroforestry System, Biomass, Carbon Stock, Carbon Dioxide Mitigation, Climate Change.Full Text
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- Relationship of Physiological Plant Functional Traits With Soil Carbon Stock in The Temperate Forest of Garhwal Himalaya
Abstract Views :173 |
PDF Views:71
Authors
Affiliations
1 Forest Ecology and Climate Change Division, Forest Research Institute, Dehradun 248 006, IN
1 Forest Ecology and Climate Change Division, Forest Research Institute, Dehradun 248 006, IN
Source
Current Science, Vol 120, No 8 (2021), Pagination: 1368-1373Abstract
The composition of species can play an essential role in reducing the atmospheric carbon dioxide. Forest trees are an important part of the functioning of the terrestrial ecosystem, predominantly in the cycling of carbon. However, tree physiology is much less studied than crop physiology for several reasons: a large number of species, difficulty in measuring photosynthesis of tall trees or forest species. This study aims to establish the relationship between physiological plant functional traits (photosynthesis rate, transpiration rate, stomatal conductance, leaf chlorophyll and carotenoid content) with soil carbon stock in Pinus roxburghii forest of Garhwal Himalaya. The present findings revealed that photosynthesis rate, chlorophyll a, chlorophyll b and carotenoid content positively correlated to the soil carbon stock. The different regression models also showed that photosynthesis rate with water-use efficiency, stomatal conductance and carotenoid content is a good predictor of soil carbon stock in Pinus roxburghii forest. Physiological plant functional characteristics are thus crucial for regulating the carbon cycle and ecosystem functioning in Garhwal Himalaya.Keywords
Carbon Assimilation, Ecosystem Services, Soil Carbon, Water-Use Efficiency.Full Text
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