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Inkjet-Printable Hydrochromic Paper for Encrypting Information and Anticounterfeiting
Singh, Varun Kumar,Chitumalla, Ramesh Kumar,Ravi, Sai Kishore,Zhang, Yaoxin,Xi, Yongjie,Sanjairaj, Vijayvenkataramana,Zhang, Chun,Jang, Joonkyung,Tan, Swee Ching American Chemical Society 2017 ACS APPLIED MATERIALS & INTERFACES Vol.9 No.38
<P>Developing rewritable papers has gathered immense interest in recent times in view of developing sustainability in print media without exhausting environmental resources. We herein present a rapid and facile procedure. for the fabrication of a communication medium by treating the surface of a paper with synthetic organic molecules, after which plain water could be used as an ink to print and reprint numerous times on the treated paper before disposal. Interestingly, as the paper comes in contact with water, the molecules are driven to reorganize in. a slip-stacked arrangement. This alters their ground and excited state properties by hydrogen-bond assisted nonradiative decay, in which the associated changes are visible to, the naked eye. The changes evolved are sensitive to the solubility parameter of the solvent and thermally reversible, thus linking the hydrochromic property to the paper. Against a background of concerns over a rise in counterfeiting and leaks of confidential information, prospects for encrypted communications and anticounterfeiting is herein demonstrated.</P>
Clinical spectrum of elderly-onset inflammatory bowel disease in India
Yogesh Kumar Gupta,Arshdeep Singh,Vikram Narang,Vandana Midha,Ramit Mahajan,Varun Mehta,Dharmatma Singh,Namita Bansal,Madeline Vithya Barnaba Durairaj,Amit Kumar Dutta,Ajit Sood 대한장연구학회 2023 Intestinal Research Vol.21 No.2
Background/Aims: Inflammatory bowel disease (IBD) is increasingly being recognized in elderly patients. Data on clinical spectrum of elderly-onset IBD patients is lacking from India. Methods: A cross-sectional retrospective analysis of a prospectively maintained database of patients diagnosed with IBD was conducted at 2 centers in India. The clinical spectrum of elderly-onset IBD including demographic profile (age and sex), clinical presentation, disease characteristics (disease behavior and severity, extent of disease), and treatment were recorded and compared with adult-onset IBD. Results: During the study period, 3,922 (3,172 ulcerative colitis [UC] and 750 Crohn’s disease [CD]) patients with IBD were recorded in the database. A total of 186 patients (4.74%; 116 males [62.36%]) had elderly-onset IBD (69.35% UC and 30.64% CD). Diarrhea, blood in stools, nocturnal frequency and pain abdomen were the commonest presentations for UC, whereas pain abdomen, weight loss and diarrhea were the most frequent symptoms in CD. For both elderly onset UC and CD, majority of the patients had moderately severe disease. Left-sided colitis was the commonest disease location in UC. Isolated ileal disease and inflammatory behavior were the most common disease location and behavior, respectively in CD. 5-Aminosalicylates were the commonest prescribed drug for both elderly onset UC and CD. Thiopurines and biologics were used infrequently. Prevalence of colorectal cancer was higher in elderly onset IBD. Conclusions: Elderly onset IBD is not uncommon in India. Both the elderly onset UC and CD were milder, with no significant differences in disease characteristics (disease extent, location and behavior) when compared to adult-onset IBD. Colorectal cancer was more common in elderly onset IBD.
( Arshdeep Singh ),( Yogesh Kumar Gupta ),( Ashvin Singh Dhaliwal ),( Bhavjeet Kaur Kahlon ),( Vasu Bansal ),( Ramit Mahajan ),( Varun Mehta ),( Dharmatma Singh ),( Ramandeep Kaur ),( Namita Bansal ) 대한장연구학회 2023 Intestinal Research Vol.21 No.3
Background/Aims: The inflammatory bowel disease (IBD)-disk is a validated, visual, 10-item, self-administered questionnaire used to evaluate IBD-related disability. The present study aimed to evaluate IBD-disk in assessment of IBD daily life burden and its relation with disease activity. Methods: A cross-sectional study was conducted between June 2021 and December 2021. Patients with IBD were asked to complete the IBD-disk and a visual analogue scale of IBD daily-life burden (scored from 0-10, score >5 indicative of high burden). The internal consistency of IBD-disk, correlation with IBD daily life burden and disease activity (assessed by partial Mayo score and Harvey Bradshaw Index in patients with ulcerative colitis [UC] and Crohn’s disease [CD], respectively) and diagnostic performance of IBD-disk to detect high burden were analyzed. Results: Out of the 546 patients (mean age 40.33±13.74 years, 282 [51.6%] males) who completed the IBD-disk, 464 (84.98%) had UC and the remaining (n=82, 15.02%) had CD. A total of 311 patients (291 UC and 20 CD; 56.95%) had active disease. The mean IBD-disk total score and IBD daily life burden were 18.39±15.23 and 2.45±2.02, respectively. The IBD-disk total score correlated strongly with the IBD daily life burden (ρ=0.94, P< 0.001), moderately with partial Mayo score (ρ=0.50) and weakly with Harvey Bradshaw Index (ρ=0.34). The IBD-disk total score >30 predicted high IBD daily-life burden. Conclusions: The IBD-disk accurately predicts the daily life burden and parallels disease activity in patients with IBD and can be applied in clinical practice. (Intest Res 2023;21:375-384)
A novel pectoral muscle segmentation from scanned mammograms using EMO algorithm
Santhos Kumar Avuti,Varun Bajaj,Anil Kumar,Girish Kumar Singh 대한의용생체공학회 2019 Biomedical Engineering Letters (BMEL) Vol.9 No.4
Mammogram images are majorly used for detecting the breast cancer. The level of positivity of breast cancer is detected afterexcluding the pectoral muscle from mammogram images. Hence, it is very signifi cant to identify and segment the pectoralmuscle from the mammographic images. In this work, a new multilevel thresholding, on the basis of electro-magnetismoptimization (EMO) technique, is proposed. The EMO works on the principle of attractive and repulsive forces among thecharges to develop the members of a population. Here, both Kapur’s and Otsu based cost functions are employed with EMOseparately. These standard functions are executed over the EMO operator till the best solution is achieved. Thus, optimalthreshold levels can be identifi ed for the considered mammographic image. The proposed methodology is applied on all thethree twenty-two mammogram images available in mammographic image analysis society dataset, and successful segmentationof the pectoral muscle is achieved for majority of the mammogram images. Hence, the proposed algorithm is found tobe robust for variations in the pectoral muscle.
Liton Balo,Himani Gupta,Shishir Kumar Singh,Varun Kumar Singh,Shalu Kataria,Rajendra Kumar Singh 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.65 No.-
Flexible gel polymer electrolytes based on polymer polyethylene oxide, salt lithium bis(fluorosulfonyl)imide and ionic liquid 1-ethyl-3-methylimidazolium bis(fluorosulfonyl)imide are synthesized. Prepared samples show high thermal stability, high ionic conductivity at room temperature and an electrochemical stability window of ∼3.51 V vs. Li/Li+. Lithium deposition-striping voltage profiles show the formation of a stable solid electrolyte interface. A Li/GPE/LiFePO4 cell was assembled by low cost thermal lamination technique. This cell can deliver 143 mAh g−1 capacity at room temperature at C/20 rate with good discharge efficiency. Use of micro grid mesh type Al current collector in cathode exhibits significant improvement in capacity retention.
Varun Singh Dhull,Punit Sharma,Suhas Singla,Nauroze Asghar Faizi,Sanjay Thulkar,Chandersekhar Bal,Rakesh Kumar 대한핵의학회 2013 핵의학 분자영상 Vol.47 No.2
We present a case of a 23 year-old male treated for Hodgkin’s lymphoma who developed diffuse large Bcell lymphoma (DLBCL) 8 years after achieving remission. 18F-fluorodeoxyglucose positron emission tomography computed tomography (18F-FDG PET-CT) was done, which revealed extensive extranodal involvement of bilateral atria,bilateral kidneys, ileo-caecal junction and left testis along with mesenteric and retroperitoneal lymph nodal involvement. Renal and cardiac lesions were not detected by contrast-enhanced CT. Simultaneous lymphomatous involvement of rare sites such as heart, kidneys and testis in a single patient has not been reported before.
Glued Angiocatheter: A Rare Complication of Intrarenal Pseudoaneurysm Glue Angioembolization
Varun Sharma,Santosh Kumar,SK Singh,AK Mandal 대한비뇨의학회 2014 Investigative and Clinical Urology Vol.55 No.6
Endovascular management of intraparenchymal renal artery pseudoaneurysms is areasonable and effective therapeutic technique. Endovascular management preservesthe maximum amount of renal tissue and reduces the potential risk of nephrectomy. We present the case of an angiocatheter that became stuck in the renal artery followingthe injection of cyanoacrylate glue for angioembolization of an intrarenal pseudoaneurysm.
Singh, Gajendra Pal,Sahay, Alok,Kulshresth, Varun,Kumar, Phani Kiran,Pallavi, Saumya,Ojha, Nand Gopal,Prasad, Bhagwan Chandra Korean Society of Sericultural Science 2010 International Journal of Industrial Entomology Vol.20 No.1
Ten numbers of plants, based on their medicinal value, were used to test their efficacy against virosis (caused by cytoplassmic polyhedrosis virus) in tasar silkworm, Antheraea mylitta Drury. in indoor rearing conditions. The aqueous extracts of leaf of Azadirichita indica (neem), Acharanthus aspera, Psoralea corylifolia, Asparagus racemosus, Adhatoda zelanica (Basak), Andrographis paniculata (Kalmegh), Moringa oilephera (sahjan), whole plant of Phyllanthus urinaria (Bhuiamla), Centella asiatica (Veng sag) and Curcuma longa (Haldi powder) in different concentrations were used for containment of virosis in silkworm larvae. The tasar silkworm larvae were orally inoculated with PIBs ($1\times10^6$) of AmCPV in $2^{nd}$ instar and treated with plant extracts in each instar ($2^{rd}$ instar onwards). The mortality due to virosis was recorded during larval period. The plant extracts, irrespective of their concentrations, were found effective in suppressing the virosis where P. urinaria reduced the virosis to 56.90% followed by A. paniculata (53.82%) and least in C. asiatica (5.15%). The lowest pooled larva mortality 36.99% was recorded in the treatment of P. urinaria. Comparatively higher larva mortality 39.91% was observed with the treatment of A. paniculata. The highest larva mortality in treatment was with C. asiatica (81.99%). In treated control larva mortality was 86.50%.
Supranuclear oculomotor palsy in cerebral venous sinus thrombosis: a case report
Kumar Bismaya,Sabyasachi Pattanayak,Abhishek Dixit,Abhishek Pathak,Rameshwar Nath Chaurasia,Varun Kumar Singh 대한신경집중치료학회 2021 대한신경집중치료학회지 Vol.14 No.2
BackgroundFor certain ocular movement abnormalities, the exact neuroanatomical localization of the causative lesion is still not defined. Oculomotor apraxia, apraxia of eye opening and closing, and motor impersistence are rarely reported in acute stroke, particularly following venous stroke.Case ReportA 34-year-old man presented with headache, vomiting, focal seizures with bilateral tonic-clonic movements, and altered sensorium. Magnetic resonance imaging revealed bilateral frontal and left parietal hemorrhagic infarcts, and contrast venography revealed superior sagittal sinus thrombosis. The patient received anticoagulant treatment with antiepileptics. On re-examination on day 3, the patient had a rare combination of apraxia of eyelid closure, motor impersistence, and oculomotor apraxia. By Day 10 of admission, all oculomotor abnormalities had subsided.ConclusionTo the best of our knowledge, this is the first report of the combination of oculomotor apraxia and apraxia of eyelid closure with motor impersistence in a patient with cerebral venous sinus thrombosis.