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Rahul Sinha(Rahul Sinha ),Sonali Singh(Sonali Singh ),Gautam Kamila(Gautam Kamila ),Ashish Upadhyay(Ashish Upadhyay ) 대한소아신경학회 2022 대한소아신경학회지 Vol.31 No.1
Purpose: This study investigated the diagnostic utility of short-term video electroencephalography (EEG) recordings at a tertiary care center in North India. Methods: A retrospective analysis was conducted of 30 minutes of video EEG recordings done between January 2021 and January 2022 in children between 1 and 10 years of age. Demographic and clinical data were collected from the EEG register. Age, sex, the clinical diagnosis, the number of anti-seizure medicines (ASMs), the activation procedures used, and EEG abnormalities were recorded. Results: Data from 100 children (male-to-female ratio, 1.9:1) were analysed. The mean age was 5.39±2.02 years. The indications for EEG recordings were epileptic disorders, neurodevelopmental disorders, paroxysmal non-epileptic events, and miscellaneous in 66%, 18%, 9%, and 7% of children, respectively. EEG abnormalities were seen in 50 children (50%) and about 45% of children were on two or more ASMs. EEG abnormalities in sleep were seen in 35 of 66 (53%) children, whereas abnormalities were observed on awake recordings with activation procedures (hyperventilation and photic) in 23 of 34 (68%) children; this difference was not statistically significant (P=0.16) Conclusion: EEG abnormalities were significantly more common in children taking multiple ASMs; however, there was no statistically significant difference in the EEG yield between asleep and awake records with activation procedures. A better selection of patients for routine EEG, through an assessment of their clinical history and comorbidities, is warranted to increase its diagnostic yield.
Sinha, Uma S.P.,Das, Susmita,Sinha, Manoj K. Korean Society of Sericultural Science 2012 International Journal of Industrial Entomology Vol.25 No.1
An experiment was carried out to boost the production of tasar crops through application of secondary nutrients. Different combinations of secondary nutrients were prepared and its effect was studied on the yield and quality of leaves of tasar food plant Terminalia tomentosa W & A with 2.4 m ${\times}$ 2.4 m spacing and cocoon characters of tasar silkworm Antheraea mylitta Drury reared on them. Among different combinations of secondary nutrients, foliar application of magnesium sulphate (2%, w/v) and basal application of 3 quintal/ha of calcium carbonate (secondary nutrient combination SM5) was found to be the best in crop improvement. It improves the quantity and quality of leaves as well as the commercial characters of cocoons. As a result, silk production improves. Under this combination, leaf yield increased by 26.55% in comparison to control. Average increase in moisture, total mineral, crude protein and total carbohydrate was 3.26%, 20.84%, 15.39% and 17.85% respectively as compared with control. Further, bio assay studies revealed that average larval weight, E.R.R., cocoon weight, shell weight and silk ratio percent increased by 11.25%, 25.71%, 20.05%, 35.14% and 12.17% respectively over control which indicates that secondary nutrient combination $SM_5$ has significant role in improving the production of tasar crops.
Seismic qualification using the updated finite element model of structures
Sinha, Jyoti K.,Rao, A. Rama,Sinha, R.K. Techno-Press 2005 Structural Engineering and Mechanics, An Int'l Jou Vol.19 No.1
The standard practice is to seismically qualify the safety related equipment and structural components used in the nuclear power plants. Among several qualification approaches the qualification by the analysis using finite element (FE) method is the most common approach used in practice. However the predictions by the FE model for a structure is known to show significant deviations from the dynamic behaviour of 'as installed' structure in many cases. Considering such limitation, few researchers have advocated re-qualification of such structures after installation at site to enhance the confidence in qualification vis-$\grave{a}$-vis plant safety. For such an exercise the validation of FE model with experimental modal data is important. A validated FE model can be obtained by the Model Updating methods in conjugation with the in-situ experimental modal data. Such a model can then be used for qualification. Seismic analysis using the updated FE model and its advantage has been presented through an example of an in-core component - a perforated horizontal tube of a nuclear reactor.
The Relation between Openness and Economic Growth: Postwar Evidence from 124 Countries
Tapen Sinha,Dipendra Sinha 서울대학교 경제연구소 1999 Seoul journal of economics Vol.12 No.1
Conventional wisdom suggests that openness of an economy promotes economic growth. Romer (1989) posits the positive relationship between openness and economic growth as a stylized fact. He uses only ex-post industrialized countries to "prove" his stylized fact thereby introducing a sample selection bias. We correct for this sample selection bias by analyzing the biggest available sample of countries using the Penn World Table 5.6. We also correct for the fact that trade does not mean export only. We obtain quantitative estimates of the impact of trade on growth. In doing so, we use modem time series techniques instead of relying on simple scatter diagrams. Results show that growth in openness is indeed significantly positively related to the growth in real GDP for 94 out of 124 countries.
Choanal Atresia:Surgery by Puncture,Dilation and Stenting
Vikas Sinha,Sudipti Sinha,Devang Gupta,Yogesh More,Bela Prajapati,Vadisha Bhat,B.K. Kedia,Manish Ninama,Sidhartha Shah 대한비과학회 2006 Journal of rhinology Vol.13 No.2
Background and Objectives:The bilateral choanal atresia is a medical emergency for which surgery is the only and definite treatment. We performed an atretic bone perforation using Hagers dilators. The purpose of this study, then, is to evaluate the efficacy of this simple technique of perforation, dilation and stenting. Material and Methods:We studied five patients who underwent surgery for a complete bilateral bony atresia from 1994 to 2004. All the patients were newborn: two males and three females babies. The male female ratio was 1:1.5. Their age varied from 1 day to 4 days. The surgery was performed with Hagers dilators using the puncture and dilation technique. Stenting was carried out in all cases using a non cuffed endotracheal tube. Results:The reestablishment of the nasal passage through a perforating atretic plate was considered a successful criteria of surgery. All the neonates had good nasal air passage after the perforation, dilation and stenting. Two of the patients who were with the CHARGE association died within 7 days due to causes unrelated to surgery. The other three patients had successful removal of stent after six weeks. There was no follow-up afterwards. Conclusion:The puncture, dilation and stenting technique by Hagers dilator is safe, quick and simple. It involves minimum blood loss and is without any complications. Stenting, therefore, is essential for preventing restenosis.
Seismic qualification using the updated finite element model of structures
Jyoti K. Sinha,A. Rama Rao,R. K. Sinha 국제구조공학회 2005 Structural Engineering and Mechanics, An Int'l Jou Vol.19 No.1
The standard practice is to seismically qualify the safety related equipment and structural components used in the nuclear power plants. Among several qualification approaches the qualification by the analysis using finite element (FE) method is the most common approach used in practice. However the predictions by the FE model for a structure is known to show significant deviations from the dynamic behaviour of ‘as installed’ structure in many cases. Considering such limitation, few researchers have advocated re-qualification of such structures after installation at site to enhance the confidence in qualification vis-à-vis plant safety. For such an exercise the validation of FE model with experimental modal data is important. A validated FE model can be obtained by the Model Updating methods in conjugation with the in-situ experimental modal data. Such a model can then be used for qualification. Seismic analysis using the updated FE model and its advantage has been presented through an example of an in-core component − a perforated horizontal tube of a nuclear reactor.
Nickel doped PZT ceramics by a spray dried-PVA assisted method
S.K. Sinha,Amit Kumar Sinha,P. Kour,P.K. Barhai 한양대학교 세라믹연구소 2011 Journal of Ceramic Processing Research Vol.12 No.1
Ferroelectric thin material of PZT modified with Ni 2+, with a Zr/Ti molar ratio 54/46 was prepared by spray drying the nitrate solution of lead, zirconium ,titanium and nickel in a stoichiometric ratio followed by stirring at 80 oC for 36 hours in 3% v/v PVA. The gel prepared by the PVA method was then calcined at 550 oC. Tetragonal perovskite type phases were identified as being present in the calcined powder. The remanent polarization (Pr) and the coercive field (Ec) were found to be 5.1 μCcm−2 and 46.2 KV/cm, respectively. The d33 value in PZT was found to be 192 × 10−12 C/N at 33 KV/cm at 1.5 atomic percent dopant concentration. SEM micrographs showed the grain size in the range of 0.5 μm. In conclusion, Ni 2+ incorporation in a PZT material contributes to the polarizibility and the spray dried PVA method slightly lowers the Pr and increases the Ec when compared to the sol.gel technique or magnetron sputtering technique.