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Sweta Bhan,Lalit MOHAN,C. N. SRIVASTAVA 한국응용곤충학회 2014 Journal of Asia-Pacific Entomology Vol.17 No.4
Encapsulation of temephos ranging from 1% to 16% and imidacloprid from 1% to 8% within biodegradable andbiocompatible, polyethylene glycol in different ratios was done by using melt-dispersion method. The efficacyof encapsulated forms was evaluated and compared with their non-capsulated forms against larvae of Culexquinquefasciatus. The encapsulated temephos was more toxic than the encapsulated imidacloprid with LC50values of 0.013, 0.010 and 0.003 mg/L after 24, 48 and 72 h, respectively. No doubt, the non-capsulated temephosand imidacloprid were more effective as compared to their encapsulated forms. However, the same mortalityrate was achieved by the slow release of lesser amount of pesticides after encapsulation, e.g., 0.003 mg/L for 8%temephos formulation and 0.019 mg/L for 4% imidacloprid as compared to their non-capsulated form oftemephos and imidacloprid (0.004 and 0.021 mL/L) after 72 h of exposure. Thus, encapsulated forms are moreeconomical and eco-friendly due to controlled slow release of their nanoparticles.
A Review : Black Hole & Gray Hole Attack in MANET
Sweta Dixit,Krishna Kumar Joshi,Neelam Joshi 보안공학연구지원센터 2015 International Journal of Future Generation Communi Vol.8 No.4
In past few years, mobile ad hoc network has gaining more attention of researchers. Mobile Adhoc Network (MANET) are most widely used all over the world, due to its ability to communicate each other without the use of any fixed network. It applications used in military network, disaster relief operations and also in commercial environments. Due to open, dynamic and infrastructure-less nature, the ad hoc networks are vulnerable to various attacks. The black hole and grayhole attack is one of them in MANET. Security is an necessary requirement in MANET. Without any proper security solution, the malicious node in the network will act as a normal node which causes eaves dropping and selective forwarding attack generally known as Gray Hole attack. In this paper we survey on MANET applications, routing protocols, different types of attacks and also the review of researchers.
Verma Sweta,Ramani Ranganathan,Sachan Ashish,Chandra Ramesh 한국응용곤충학회 2023 Journal of Asia-Pacific Entomology Vol.26 No.1
The Indian lac insect, Kerria lacca (Kerr) exhibits a highly variable sex ratio, apparently influenced by various environmental factors, in the absence of a chromosomal sex determination mechanism. The endosymbiont Wolbachia, well known as sex ratio distorter, was reported in this species but its role in the sex determination of the host has hitherto remained unexplored. Distinct variation in the presence of Wolbachia was observed in relation to the developmental stages and the sexes of K. lacca as well as the host plant species; adult males of W + whereas adult females are W-. The post-settlement environmental factors such as host plant, season and ge netic makeup affect the sex ratio in this insect, probably mediated through Wolbachia dynamics. Denser settle ment of the crawlers led to comparatively higher Wolbachia presence with an elevated sex ratio. Suppression of Wolbachia through antibiotic administration resulted in a nearly threefold increase in the sex ratio. Distinct transitions in the proportion of insects with heterochromatic genome (cytological males) have been observed during the first instar on different host plants, indicating that changes in the sex ratio occur during early development phase. Environmental factors appear to influence Wolbachia, which in turn brings about sex ratio changes, probably mediated through changes in juvenile hormone levels, as the male and female lac insects show distinct modes of metamorphosis.
Godbole, Amrit,Sweta, Sweta,Abhinav, Abhinav,Singh, O.P. Cellmed Orthocellular Medicine and Pharmaceutical 2021 셀메드 (CellMed) Vol.11 No.1
Background: Amavata is a disease that occurs as a result of the error of metabolism. Poor dietary habits and faulty Dincharya (daily regimen) and ritucharya (seasonal regimen) leading to deranged metabolism and Agni (metabolic fire) which results in the formation of Ama(undigested product of metabolism). When Amaconceals with Vata(subtle energy associated with movement) and circulates in the body under the influence of Vyana Vayu (omnipresent air)it clogs the srotasas (microchannels) and initiates the inflammatory cascade. Amavata is commonly correlated with rheumatoid arthritis (RA) while other forms of auto-immune disorders can also be included in Amavata.Dysbiosis of the gut microbiota (GM) has been connected to the onset of diverse autoimmune diseases. In this study, it was hypothesized that Panchakarma (bio-purificatory methods) based intervention such as Virechana Karma (therapeutic purgation) may influence microbiota. Materials and Methods: Various Ayurvedic literature were reviewed for the etiopathogenesis of Amavata. Different databases were searched with research papers related to Gut Dysbiosis and autoimmunity and management of RA. A connecting link between Intestinal Dysbiosis with the autoimmune mechanisms was established and it was also found that the bowel cleansing introduced a change to the GM. Conclusion: It was concluded that Virechana karma is effective in gut flora Dysbiosis. This study aims to correlate the ancient Ayurvedic principles related to Agni Bala(metabolic energy) and biopurificatory treatment modalities like Virechana karma (therapeutic purgation)with the modern concept of gut microbiota and its role in the pathogenesis of various autoimmune disorders such as rheumatoid arthritis. The article creates an understanding about principles of Ayurveda and its rationality in today's scientific world and thereby opens newer vistas of research in therapeutics from Ayurveda, which may be helpful in the management of various immune-mediated Diseases through Ayurveda.
Genotypic influence of a-deletions on the phenotype of Indian sickle cell anemia patients
Sanjay Pandey,Sweta Pandey,Rahasya Mani Mishra,Monica Sharma,Renu Saxena 대한혈액학회 2011 Blood Research Vol.46 No.3
Background :Some reports have shown that co-inheritance of a-thalassemia and sickle cell disease improves hematological parameters and results in a relatively mild clinical picture for patients; however, the exact molecular basis and clinical significance of the interaction between a-thalassemia and sickle cell disease in India has not yet been described. There is little agreement on the clinical effects of a-thalassemia on the phenotype of sickle cell disease. Methods :Complete blood count and red cell indices were measured by an automated cell analyzer. Quantitative assessment of hemoglobin variants HbF, HbA, HbA2, and HbS was performed by high performance liquid chromatography (HPLC). DNA extraction was performed using the phenol-chloroform method, and molecular study for common a-deletions was done by gap-PCR. Results :Out of 60 sickle cell anemia patients, the a-thalassemia genotype was found in 18 patients. Three patients had the triplicated a-genotype (Anti a-3.7 kb), and the remaining patients did not have a-deletions. This study indicates that patients with co-existing a-thalassemia and sickle cell disease had a mild phenotype, significantly improved hematological parameters, and fewer blood transfusions than the patients with sickle cell anemia without co-existing a-deletions. Conclusion :Co-existence of a-thalassemia and sickle cell anemia has significant effects on the phenotype of Indian sickle cell patients.
Jayashree C,Sweta Singh,Arulazhagan P,염익태,Iqbal M. I. I,Rajesh Banu J 한국생물공학회 2015 Biotechnology and Bioprocess Engineering Vol.20 No.4
Recalcitrant compounds like phenol found in coconut husk retting effluent cause the deterioration of water quality when discharged from retting ponds into other water sources. Continuous upflow microbial fuel cell (MFC) was evaluated for treating retting wastewater at different loading rates to determine power generation, chemical oxygen demand (COD) consumption rate and phenol removal for a period of 270 days. A maximum power density of 254 mW/m2 was achieved during the treatment of retting wastewater (external resistance - 350Ω). COD removal of 70% was accomplished at a loading rate of 0.45 g COD/L reactor/day and phenol removal of 95% was obtained at a loading rate of 0.28 g phenol/L reactor/day. The power density exhibited an increasing pattern as the loading rate of MFC was increased from 0.45 to 2.69 g COD/L reactor/day. This study describes the treatment of retting wastewater employing continuous upflow MFC with 95% phenol removal. Therefore, MFC can be considered as an alternative for the efficient removal of phenol and current generation in retting wastewater.
Electrochemical oxidation-reduction and determination of urea at enzyme free PPY-GO electrode
Harish Mudila,Parteek Prasher,Sweta Rana,Beena Khati,M.G.H. Zaidi 한국탄소학회 2018 Carbon Letters Vol.26 No.-
This manuscript explains the effective determination of urea by redox cyclic voltammetric analysis, for which a modified polypyrrole-graphene oxide (PPY-GO, GO 20% w/w of PPY) nanocomposite electrode was developed. Cyclic voltammetry measurements revealed an effective electron transfer in 0.1 M KOH electrolytic solution in the potential window range of 0 to 0.6 V. This PPY-GO modified electrode exhibited a moderate electrocatalytic effect towards urea oxidation, thereby allowing its determination in an electrolytic solution. The linear dependence of the current vs. urea concentration was reached using square-wave voltammetry in the concentration range of urea between 0.5 to 3.0 μM with a relatively low limit of detection of 0.27 μM. The scanning electron microscopy was used to characterize the morphologies and properties of the nanocomposite layer, along with Fourier transform infrared spectroscopy. The results indicated that the nanocomposite film modified electrode exhibited a synergistic effect, including high conductivity, a fast electron-transfer rate, and an inherent catalytic ability.