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Pre-seismic ionospheric anomalies of the 2013 Mw=7.7 Pakistan earthquake from GPS and COSMIC observations

Geodesy and Geodynamics 2018年第5期9卷 378-387页

作者： munawar shah Shuanggen Jin Shanghai Astronomical Observatory Chinese Academy of Sciences University of Chinese Academy of Sciences Department of Statistics Women UniversitySwabi Pakistan

The seismo-ionospheric anomalies may provide some insights about the ***,preseismic ionospheric anomalies are still *** this paper,seismo-ionospheric anomalies are investigated before the September 24,2013(Mw=7.7)Awaran(Pakistan)earthquake from GPS TEC(Total Electron Content)and COSMIC(Constellation Observing System for Meteorology,Ionosphere and Climate)*** TEC data are showing anomalies on September 21,*** abnormality detected in the temporal data is about 10 TECU beyond the 30-day running *** percentage deviation of the TEC anomaly on September 21,is 30% above the upper confidence *** anomalies prevail 5 in Latitude and 10 in Longitude over the *** spatial and temporal data of TEC showed anomalies in TEC from UT=08 to UT=*** addition,the enhancement on September 21,2013 is also very significant in COSMIC *** results of COSMIC completely agreed with GPS TEC anomalies on September 21,*** percentage deviation of the peak plasma frequency on September 21 is 5% of the normal *** storm indices are quiet before and after the *** pre-sesimic ionospheric anomalies are most probably associated with the 2013 Mw=7.7 Awaran(Pakistan)earthquake.

关键词： Seismo-ionospheric disturbance GPS TEC COSMIC Earthquake

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Nitrogen(N) metabolism related enzyme activities,cell uitrastructure and nutrient contents as affected by N level and barley genotype

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Journal of Integrative Agriculture 2017年第1期16卷 190-198页

作者： Jawad munawar shah Syed Asad Hussain Bukhari ZENG Jian-bin QUAN Xiao-yan Essa Ali Noor Muhammad ZHANG Guo-ping Department of Agronomy Zijingang Campus Zhejiang University Hangzhou 310058 P.R. China

Development of the new crop cultivars with high yield under low nitrogen （N） input is a fundamental approach to enhance agricultural sustainability, which is dependent on the exploitation of the elite germplasm. In the present study, four barley genotypes （two Tibetan wild and two cultivated）, differing in N use efficiency （NUE）, were characterized for their physiolog- ical and biochemical responses to different N levels. Higher N levels significantly increased the contents of other essential nutrients （P, K, Ca, Fe, Cu and Mn）, and the increase was more obvious for the N-efficient genotypes （ZD9 and XZ149）. The observation of ultrastructure showed that chloroplast structure was severely damaged under low nitrogen, and the two high N efficient genotypes were relatively less affected. The activities of the five N metabolism related enzymes, i.e., nitrate reductase （NR）, glutamine sy＇nthetase （GS）, nitrite reductase （NiR）, glutamate synthase （GOGAT） and glutamate dehydrogenase （GDH） all showed the substantial increase with the increased N level in the culture medium. However the increased extent differed among the four genotypes, with the two N efficient genotypes showing more increase in com- parison with the other two genotypes with relative N inefficiency （HXRL and XZ56）. The current findings showed that a huge difference exists in low N tolerance among barley genotypes, and improvement of some physiological traits （such as enzymes） could be helpful for increasing N utilization efficiency.

关键词： barley enzyme genotype nitrogen ultrastructure

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Comparative study of hypoglycemic and antibacterial activity of organic extracts of four Bangladeshi plants

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Journal of Coastal Life Medicine 2016年第3期4卷 231-235页

作者： Mohammad shah Hafez Kabir Shabbir Ahmad Md.Sofi Mahamoud Nishan Chakrabarty Md.Akramul Hoque Mohammed munawar Hossain Md.Nazim Uddin Chy Mohammed Shoibe Department of Pharmacy International Islamic University ChittagongChittagongBangladesh

Objective:To examine hypoglycemic and antibacterial activity against some Gram-positive and Gram-negative bacteria of organic extracts of four Bangladeshi ***:An in vivo hypoglycemic effect on mice model was used to check the hypoglycemic effect of four Bangladeshi herbal organic extracts viz.,roots of Curculigo recurvata ***(Satipata)(***),leaf of Amorphophallus bulbifer Roxb.(Olkachu)(***),whole plant of Thunbergia grandiflora Roxb.(Nillata)(***)and leaf of Steudnera colocasiifolia ***(Yunnan)(***)using glibenclamide as a positive control and water as a negative *** were also tested for antibacterial activity on three Grampositive and four Gram-negative bacteria by disk diffusion ***,*** and *** were extracted with methanol and *** was extracted with ***:Among all the plant extract,only ethanol extract of *** leaves at 800 mg/kg dose significantly(P<0.01)reduced fasting glucose level in normal mice as compared to standard drug glibenclamide(5 mg/kg).Ethanol extract of *** leaves at 800 mg/kg dose decreased 20.28%of blood glucose level after 2 h of administration in normal mice,where glibenclamide decreased 39.63%.Methanol extract of *** didn’t show any zone of inhibition against the tested bacteria,but other three extracts showed a wide range of zone of ***,none of the extract showed antibacterial activity against all the tested *** extract of *** showed maximum zone of inhibition against Bacillus cereus[(10.50±0.50)mm],Salmonella typhi[(16.20±1.26)mm],Escherichia coli[(13.00±1.00)mm]and ethanol extract of *** showed maximum zone of inhibition against Staphylococcus aureus[(11.20±1.26)mm],Bacillus subtilis[(12.00±0.50)mm],Salmonella paratyphi[(10.80±0.29)mm].Only methanol extract of *** showed(8.50±0.50)mm and(7.20±0.76)mm zone of inhibition against P

关键词： Curculigo recurvata Steudnera colocasiifolia Hypoglycemic Antibacterial Disc diffusion method

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Antidepressant,anxiolytic and anti-nociceptive activities of ethanol extract of Steudnera colocasiifolia *** leaves in mice model

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Journal of Coastal Life Medicine 2015年第11期 890-894页

作者： Mohammad shah Hafez Kabir Mohammed munawar Hossain Md.Mominur Rahman Shabbir Ahmad Abul Hasanat Tanvir Ahmad Chowdhury Md.Akramul Hoque Nishan Chakrabarty Md.Shakhawat Hossain Department of Pharmacy International Islamic University ChittagongBangladesh

Objective:To estimate the antidepressant,anxiolytic and antinociceptive activities of ethanol extract of Steudnera colocasiifolia ***(***)***:Swiss albino mice treated with 1%Tween solution,standard drugs and ethanol extract of ***,respectively,were subjected to the neurological and antinociceptive *** tail suspension test and forced swimming test were used for testing antidepressant activity,where the parameter is the measurement of immobility *** activity was evaluated by hole board ***-nociceptive potential of the extract was also screened for centrally acting analgesic activity by using formalin induced licking response model and acetic acid induced writhing test was used for testing peripheral analgesic ***:Ethanol extract of *** significantly decreased the period of immobility in both tested models(tail suspension and forced swimming models)of antidepressant *** the hole board model,there was a dose dependant(at 100 and 200 mg/kg)and a significant increase in the number of head dipping by comparing with control(1%Tween solution)(P<0.05 and P<0.001).In formalin induced licking model,a significant inhibition of pain compared to standard diclofenac sodium was observed(P<0.05 and P<0.001).In acetic acid induced test,there was a significant reduction of writhing response and pain in mice treated with leaves extract of *** at 200 mg/kg body weight(P<0.05 and P<0.001).Conclusions:The results proofed the prospective antidepressant,anxiolytic and antinociceptive activities of ethanol extract of *** leaves.

关键词： Steudnera colocasiifolia K.Koch Antinociceptive Antidepressant Anxiolytic Hole board

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