Browsing by Author "K.N. Singh"

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Changes in monogalactosyl diglyceride & other glyco & phospholipids in developing & aging chick cerebrum & cerebellum
(1979) K.N. Singh; K.S. Rao
Changes in the concentrations of monogalactosyl diglyceride as well as other glycolipids, cholesterol and different species of phospholipids have been studied in cerebral and cerebellar regions of developing and aging chick brain. Very low levels of glycolipids are noticed in embryonic brain while nearly reaching adult levels by the 5th day after hatching, with only a slight increase occurring beyond this stage of life. The deposition of monogalactosyl diglyceride in cerebrum was found to be unique in that all the accretion of this liquid occurs between the 16th day of embryonic life and the 5th day after hatching: that is during a period characterised by a high rate of myelination. Beyond 5 days there was little increase in the concentration of this galactolipid. Significant amounts of both choline and ethanolamine phosphoglycerides are observed in the embryonic brain with a continued increase in the levels up to 120 days after hatching. Two-fold increases in the concentrations of sphingomyelin, phosphatidylserine and phosphatidylinositol are found between embryonic life and the 5th day post-hatching, with only a slight further enhancement of the levels throughout the rest of the life span studied. These results indicate that deposition of monogalactosyl diglyceride could be used as a sensitive and specific biochemical parameter to follow myelination.
Comparative investigation of bio-beneficiation of Kasnau-Matasukh lignite using native microorganisms
(Taylor and Francis Ltd., 2022) Aniruddha Kumar; Pramod K Rajak; Asha Lata Singh; Rajesh Kumar; K.N. Singh; Prakash K Singh
In the present investigation, an attempt has been made to beneficiate lignite using Burkholderia sp. GR 8–02, Bacillus sp. XQW, and mixed consortium. The experiments showed that Bacillus sp. XQW could remove 18.18–37.50% of total sulfur followed by mixed consortium (18.18–29.17%) and Burkholdria sp. GR 8–02 (9.09%-29.17%). There was also a concomitant decrease in the content of mineral matter as revealed in decrease of ash yields from 10.02 to 29.12% by Bacillus sp. XQW followed by 11.74–29.10% by Burkholderia sp. GR8-02 and 9.93–29.30% by mixed consortium. During the biotreatment of lignite, a reduction in the volatile matter and oxygen was also observed. Study through Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy–energy dispersive spectroscopy (SEM-EDS), petrography, and chemistry of lignite samples provided more insights into the changes in the calorific values as well as the chemical attributes of the lignite after bacterial treatment. The study revealed an increase in the Gross calorific value (6417–7234 cal/g) and Net calorific value (6522–7190 cal/g) of the lignite following the bacterial treatment. Thus, bacterial treatment of the lignite samples proved to be an effective tool for the upgradation of lignite. © 2020 Taylor & Francis Group, LLC.
Comparative performance of chemical insecticides, Neem derivatives and microbial insecticides against insect pests of pigeonpea
(1996) H. Latif; C.P. Srivastava; S. Rath; K.N. Singh
Among several chemical insecticides, Neem derivatives and microbial insecticides tested for their performance against major insect pests of pigeonpea at pod initiation stage, monocrotophos 36 SL (0.04%) sprayed thrice at 12 days interval gave highest protection and yielded maximum grain (1410 kg/ha) followed by Nimbecidine (0.3%) (1090 kg/ha). Minimum yield (590 kg/ha) was obtained from the plot sprayed with endosulfan 35% EC (0.07%).
Constituents of Echinops niveus
(1990) R.P. Singh; K.N. Singh; V.B. Pandey
[No abstract available]
Effects of environmental factors on population dynamics of rice earhead bug and their management with newer insecticide combinations and sole insecticide
(Bangladesh Botanical Society, 2019) Kamal Ravi Sharma; S.V.S. Raju; K.N. Singh; D. Rakshith Roshan
An experiment was conducted to study the population dynamics of rice earhead bug and to evaluate the efficacy of newer insecticide combinations and sole insecticide along with untreated control. The rice earhead bug population was first recorded on 36th standard week as 1 nos./10 sweep nets and peak population (17 nos./10 sweep nets) was observed during 44th standard week. The correlation analysis revealed that rice earhead bug showed significant negative correlation with rainfall while the remaining weather parameters like average relative humidity and average temperature were found negative and non-significantly correlated. The overall data of efficacy revealed that all insecticidal treatments were significantly superior over untreated control. However, the plots treated with fipronil 5% + buprofezin 20% SC recorded the lowest number of rice earhead bug population (2.10 and 3.51 nos./5 sweep nets) after first and second insecticidal sprays, respectively, followed by indoxacarb 10% + thiamethoxam 10% WG (2.47 and 4.25 nos./5 sweep nets, respectively). Whereas, application of thiamethoxam 25% WG and buprofezin 25% singly SC were recorded as third and fourth best treatments, respectively. © 2019 Bangladesh Botanical Society. All rights reserved.
Electrochemical synthesis of (Z)-11-hexadecen-1-yl acetate - The pheromone of purple stem-borer (Sesamia inferens)
(1990) K.N. Singh; R.A. Misra
[No abstract available]
Experimental study of disciplined regular diet on diseases of Purishvaha srotas in mice
(International Journal of Research in Ayurveda and Pharmacy, 2014) Amol B. Jadhav; K.N. Singh; Royana Singh
By considering the beneficial references concerning with disciplined diet which are mentioned in Ayurveda viz, in Charak Samhita, Sushruta Samhita, Yogaratnakara and Sharandhara Samhita and also about the laboratory approved diet for animals, three diets were formulated which are convenient for animals, which are as follows, Diet-1: Lab approved diet, content of 10 kg mixture which includes, Wheat flour: 6 kg, Maize flour: 3 kg, Fibre husk: 500 g, Sugar: 500 g, Salt: 100 g, Mineral powder (Agrimin forte, Galaxo, India.): 1000 g. Diet-2: Sarvarasahara (Disciplined regular diet mentioned in Ayurveda), which contains, Vilepi: It is a form of paste or homogeneous mixture of nutrient flours of Yava (malt), Shalishashtika (old rice), Tuvar dal (pigeon pea), Msoora (Lentil) spiced or zest with Ghrita, Saindhava (Rock salt), Jira (Cuminum cyminum), Ardraka (ginger) and garnished with fresh leaves of Dhanyaka (coriander), Rasayana: It is a sort of best tonic mentioned in Ayurveda i.e. the mixture of Ghrita and Godugdha (cow's milk) and Diet-3: Ekarasahara (continuous use of same diet). Histological changes were observed after 15 days of stoppage of medicine which are taken as causative factors for inducing the symptoms coated into Pureeshvaha Srotodushti lakshana, mainly constipation and diarrhoea. It was observed that Group- II and Group- III showed large ulcers some superficial as well deep reaching the muscular layer, infiltration of neutrophil was more in comparison to Group- IV and V, blunting of the villi as well as loss of villi compared than Group- IV and Group- V respectively. Thus, it can be suggested that maintenance of the disciplined diet as mentioned in "Charak Samhita" facilitates better healing to the intestinal mucosa injury induced both in constipation as well as in diarrhoea.
Fabrication and Cytocompatibility Evaluation of Psyllium Husk (Isabgol)/Gelatin Composite Scaffolds
(Humana Press Inc., 2019) Suruchi Poddar; Piyush Sunil Agarwal; Ajay Kumar Sahi; Kiran Yellappa Vajanthri; Pallawi; K.N. Singh; Sanjeev Kumar Mahto
Psyllium husk or isabgol contains xylan backbone linked with arabinose, rhamnose, and galacturonic acid units (arabinoxylans). In this study, we demonstrate the fabrication and characterization of a macroporous three-dimensional (3D) composite scaffold by mixing psyllium husk powder (PH) and gelatin (G) in different ratios, viz.100 PH, 75/25 PH/G, and 50/50 PH/G (w/w), using an EDC-NHS coupling reaction followed by freeze-drying method. The reaction was performed in aqueous as well as in alcoholic media to determine the most appropriate solvent system for this purpose. The mechanical strength of the scaffold system was improved from 151 to 438 kPa. The fabricated scaffolds exhibited enhanced structural stability, remarkable swelling capacity, and escalated cell growth and proliferation. ATR-FTIR analysis showed the presence of amide and ester bonds indicating covalent crosslinking. SEM micrographs revealed the porous nature of the scaffolds with pores ranging from 30 to 150 μm, and further pore size distribution curve indicated that 75/25 PH/G (w/w%) EDC-NHS-alcohol scaffold exhibited the best fit to the Gaussian distribution. Swelling capacity of the 100 PH EDC-NHS-alcohol scaffolds was found to be nearly 40% from its original weight in 48 h. MTT assay using fibroblast cells revealed ~ 80% cellular proliferation by 6th day within the fabricated scaffolds in comparison to control. [Figure not available: see fulltext.]. © 2019, Springer Science+Business Media, LLC, part of Springer Nature.
Generalised lipscmtz class of functions and the absolute summability of fourier series by norlund means
(1981) S.N. Lal; K.N. Singh
The main aim of the paper is to investigate the relationship between certain generalised Lipschitz classes of functions and to discuss the absolute Norlund summability of Fourier series of functions of the class Lq where 2 < q < oo. © 1981 American Mathematical Society © 1981 American Mathematical Society.
Genetic association of infertility in vataj prakriti female patients with reproductive age group
(BRNSS Publication Hub, 2018) Lakshmi Kardam; Sangeeta Rai; K.N. Singh; Royana Singh
Background: According to the ancient system of medicine Vataj Prakriti females are more prone for infertility. Many studies have been carried out to determine the association between Dehaj Prakriti and specific diseases, whereas to understand the direct relationship between Vataj Prakriti and infertility still need more studies. Objective: The objective of the study was to investigate the association between infertility and Prakriti using modern diagnostic tool, i.e., Karyotyping. Materials and Methods: This study was conducted as a randomized controlled study on 50 infertile females by evaluating their Prakriti and Karyotyping and to find out the relationship between both of them. Study was conducted at Sir Sunderlal Hospital, IMS, BHU, and Cytogenetic Lab, Department of Anatomy, IMS, BHU. Prakriti was assessed by Performa (questionnaire-based) and Karyotyping was done by G-banding Technique. Correlation between Prakriti and Karyogram and other factors such as age, chief complaints, menstrual history, and endocrine profile were assessed. Results: The overall Vataj Prakriti females were 72% out of these 01% are Turner's, and 18% are Turner Mosaic. The study identified a statistically significant relationship between Vataj Prakriti and infertility. Conclusion: Results of the present study suggested that the Vataj Prakriti females were more prone for infertility than pittaj and kaphaj Prakriti and all abnormal karyogram is also associated with Vataj Prakriti. © 2018 BRNSS Publication Hub. All rights reserved.
Hydrological assessment of Haveli-based traditional water harvesting system for the Bundelkhand Region, Uttar Pradesh, India
(Indian Academy of Sciences, 2023) Liansangpuii; Ramesh Singh; R.M. Singh; K.N. Singh; S.K. Kar
Water harvesting is a critical component of any ap-proach to alleviating India’s water crisis. Traditional rainwater harvesting systems are found in every region of the country. Haveli is one such system found in almost every village in the Bundelkhand region, Uttar Pradesh, India. A defunct Haveli in the Parasai–Sindh watershed of Jhansi district, Uttar Pradesh, was rejuvenated by providing a cement concrete core wall to the earthen embankment to address the problem of breaching, and the existing outlet was also expanded. This study was conducted from 2013 to 2019 to analyse the hydrology of the rejuvenated Haveli and to understand its impact on surface-water availability and recharging ground-water. The study period was divided based on long-term southwest monsoon (SWM) as wet (SWM > 20%), nor-mal (SWM ± 20%) and dry (SWM < 20%) years. It was found that the Haveli could harvest about 1.91–2.0 times, 1.13–1.72 times and 0.2 times its capacity during a wet, normal and dry year, respectively. There was a 1.41 m difference in hydraulic head between pre and post-Haveli rejuvenation in a wet year, whereas, a normal year, the difference was 2.71 m. © 2023, Current Science. All Rights Reserved.
Impact assessment of rainwater management interventions on land use land cover changes in Parasai-Sindh watershed of Bundelkhand Region, Central India
(Elsevier B.V., 2024) Liansangpuii; Ramesh Singh; R.M. Singh; K.N. Singh; S.K. Kar
Rainwater Management (RWM) interventions were implemented to address the scarcity of water and to restrict the degradation of land resources in the Parasai-Sindh watershed covering an areal extent of 1246 ha located in Jhansi district of Bundelkhand region, Central India. The region is constrained by several factors, the most significant of which is its high vulnerability to natural disasters and poor infrastructure development, resulting in low agricultural production and precarious livelihoods. This study's goal was to evaluate the impact of RWM intervention on groundwater dynamics and the changes in LULC that it has brought about. A total of 380 dug wells were monitored to investigate the ground water dynamics. Integration of Remote Sensing (RS) and Geographic Information Systems (GIS) were used to prepare LULC maps using Landsat images. The changes in LULC were studied before and after the implementation of RWM interventions. The study revealed enhanced groundwater availability for agricultural and domestic applications. Due to increased water availability, a significant portion of fallow land was converted into cropland. Built-up land coverings have also increased in the watershed. A decrease in the areal extent of barren rocky and scrubland was witnessed over the study period. The area under plantation was also increased.The study underlines the relevance of RWM interventions in restoring watershed land cover, assisting in poverty alleviation, and providing long-term livelihood. © 2024 Elsevier B.V.
Isorhamnetin 7-glucoside from cnicus wallichi
(1986) K.N. Singh; V.B. Pandey
Isorhamnetin 7-glucoside was characterized from Cnicus wallichi. This is the first report of this glycoside in the Compositae and the second in nature. © 1986.
Metabolic adaptation in nutritionally small-for-date rat brain flow of glucose carbons in vitro into glyco- and phospholipids
(1978) K.S. Rao; B.K. Tiwari; K.N. Singh
[No abstract available]
Non-alcoholic cirrhosis of the liver in the tropics
(Springer-Verlag, 1981) J.P. Gupta; B.C. Datiyar; B. Dube; K.N. Singh
[No abstract available]
Nonalcoholic cirrhosis of the liver in the tropics - Studies on the small bowel dysfunction and electroencephalographic alterations and their correlates
(Springer-Verlag, 1980) J.P. Gupta; B.C. Datiyar; B. Dube; K.N. Singh
Amongst the chronic hepatic disorders in India, the cirrhosis of liver is common and its etiopathogenesis which is largly poorly understood, is at variance, to that of the West. During last two decades, several studies have been undertaken to study the small bowel status in hepatic disorders, particularly in the alcoholic cirrhosis1-3). Similar studies on the tropical hepatic cirrhosis are few4). It is likely that various intestinal infestation may be playing some role in its causation. The present study was designed to investigate the small bowel dysfunction in our cirrhotic patients and to find out the relationship, if any, with the electroencephalographic alterations. © 1980 The Japanese Society of Gastroenterology.
Rationalization of spatial organization of settlement systems: a case study in integrated rural development ( India).
(1981) K.N. Singh; S.B. Singh; R.P. Singh
Since settlement patterns in ancient settled lands like India have developed under vastly different historico-cultural as well as politico-economic situations, the traditional settlement system appears neither rational nor viable to meet the requirements of modern society. With a view to overcome this existing pattern, a model of rational settlement system is devised within the framework of social, economic and physical planning. This would not only help conservation, but also lead to revitalization, renovation and restructuring of the limited resources of the countryside, which in turn, would build up an adequate infrastructure. The exercise would ultimately lead to spatio-functional integration of the existing incomplete system of settlements.-from Authors
Relative efficacy of acetamirpid + fipronil combination formulation against bph (nilaparvata lugens stal) & glh (nephotettix virscens distant) in rice
(Journal of Pure and Applied Microbiology, 2016) D. Rakshith Roshan; S.V.S. Raju; K.N. Singh
Rice is the staple cereal crop consumed by more than 50% of world population. Its production can directly show influence on once nation's food security, including Indian subcontinent. Nowadays the rice crop is subjected to major damage by sucking pests, especially Nilaparvata lugens (Stal) (brown plant hopper) and Nephotettix virscens (Distant) (green leaf hopper). These pests are reported to cause an annual losses of 10-70% of grain yield. Further, these pests are reported to show resistance conventional insecticides and even the new groups of insecticides also reported to show less efficacy after few repeated applications. Keeping these constraints in view, an experiment was conducted to study the efficacy of combination insecticide formulation (acetamiprid + fipronil) in comparision to their corresponding sole insecticidal treatment. Eight test insecticides viz., acetamiprid 15 + fipronil 60 WDG, imidacloprid, acetamiprid, fipronil in two formulations 5SC & 80WG, monocrotophos, chlorpyriphos were assessed. The results showed that during kharif 2013, acetamiprid + fipronil treated plots are experienced low average insect pest population of BPH (2.02) & GLH (2.33) by the end of 2nd spray and per cent reduction over control for BPH and GLH was 87.71and 88.15 respectively which is higher than any other insecticidal treatment under study. Further, imidacloprid and acetamiprid were reported as next best chemicals followed by fipronil 5SC and 80WG. The same scenario was observed during kharif 2014 which emphasizes that acetamiprid + fipronil combination will give effective results for management of BPH & GLH than their corresponding individual insecticidal applications.
Sativanine-g, a cyclopeptide alkaloid from Zizyphus sativa
(1984) A.H. Shah; V.B. Pandey; J.P. Singh; K.N. Singh; G. Eckhardt
In addition to the already described peptide alkaloids from the bark of Zizyphus sativa, a new compound of this class, sativanine-G, has been isolated and its structure elucidated. This alkaloid contains a 13-membered ring system and belongs to the nummularine-C class. © 1984.
SEM surface microtextures of quartz grains from Ganga and Yamuna river sediments, Allahabad, U.P
(2004) G.S. Tiwari; R.N. Tiwari; K.N. Singh
Quartz grain surface features of recent sediments samples collected from vertical profiles developed in channel bar, point bar and natural levee deposits around the confluence of the Ganga and Yamuna rivers at Allahabad, UP, were examined under the Scanning Electron Microscope (SEM). The study reveals the existence of several surface features as a result of mechanical and chemical action on the quartz grains. In channel bar and point bar deposits, mechanical features like low relief, v-shaped impact pits of coalescing nature and conchoidal fracture are dominating surface textures, which indicate the high-energy fluviatile depositional environment. Features like surface pits and surface solution are common in quartz grains from natural levee deposits. These surface textures owe their origin to chemical dissolution, which is possible only in low energy conditions associated with the deposition of natural levee and flood plain deposits. © GEOL. SOC.INDIA.