http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Sinha, Anuradha,Dey, Ayan,Saletti, Giulietta,Samanta, Pradip,Chakraborty, Partha Sarathi,Bhattacharya, M. K.,Ghosh, Santanu,Ramamurthy, T.,Kim, Jae-Ouk,Yang, Jae Seung,Kim, Dong Wook,Czerkinsky, Cecil American Society for Microbiology 2016 CLINICAL AND VACCINE IMMUNOLOGY Vol.23 No.7
<P>Developing countries are burdened with Shigella diarrhea. Understanding mucosal immune responses associated with natural Shigella infection is important to identify potential correlates of protection and, as such, to design effective vaccines. We performed a comparative analysis of circulating mucosal plasmablasts producing specific antibodies against highly conserved invasive plasmid antigens (IpaC, IpaD20, and IpaD120) and two recently identified surface protein antigens, pan-Shigella surface protein antigen 1 (PSSP1) and PSSP2, common to all virulent Shigella strains. We examined blood and stool specimens from 37 diarrheal patients admitted to the Infectious Diseases & Beliaghata General Hospital, Kolkata, India. The etiological agent of diarrhea was investigated in stool specimens by microbiological methods and real-time PCR. Gut-homing (alpha(4)beta(+)(7)) antibody secreting cells (ASCs) were isolated from patient blood by means of combined magnetic cell sorting and two-color enzymelinked immunosorbent spot (ELISPOT) assay. Overall, 57% (21 of 37) and 65% (24 of 37) of the patients were positive for Shigella infection by microbiological and real-time PCR assays, respectively. The frequency of alpha(4)beta(+)(7) IgG ASC responders against Ipas was higher than that observed against PSSP1 or PSSP2, regardless of the Shigella serotype isolated from these patients. Thus, alpha(4)beta(+)(7) ASC responses to Ipas may be considered an indirect marker of Shigella infection. The apparent weakness of ASC responses to PSSP1 is consistent with the lack of cross-protection induced by natural Shigella infection. The finding that ASC responses to IpaD develop in patients with recent-onset shigellosis indicates that such responses may not be protective or may wane too rapidly and/or be of insufficient magnitude.</P>
Atta Shubhadip,Halder Monalisa,Dey Santanu,Raul Chandan Kumar,Meikap Ajit Kumar 한국물리학회 2023 Current Applied Physics Vol.47 No.-
We have reported dielectric and magnetocaloric effects in flexible Neodymium (Nd) doped nickel ferrite (NiNdxFe2-xO4) - polyvinyl-alcohol nanocomposite films. The samples are characterized by X-ray diffraction, scanning electron microscopy, vibrating sample magnetometer and broadband dielectric spectroscopy. The dielectric permittivity is enhanced in the composite for a particular filler concentration. The magnetic entropy change decreases by higher doping in the polymer chain. The magnetodielectric coefficient is enhanced in higher frequency and with the rise in doping concentration. The observed skin depth value of the polymer nanocomposite is lower than the film’s thickness which is suitable for electromagnetic shielding.
A new rheophytic species of Carissa (Apocynaceae) from Northeast India
Jatindra Sarma,Hussain A. Barbhuiya,Santanu Dey 국립중앙과학관 2020 Journal of Asia-Pacific Biodiversity Vol.13 No.2
A new species, Carissa kopilii, is described and illustrated from Northeast India. The taxonomic relationshipsof the new species with closely allied species of genus Carissa are examined and discussed.