3,591 results on '"Ahuja P"'
Search Results
2. Pulmonary cavitation in follow-up COVID 2019 cases: An etiological perspective.
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Singh, Priyanka, Tiwari, Saurabh, Yadav, Aseem, Singh, Shailendra, Thareja, Sandeep, Mohimen, Aneesh, Dhull, Pawan, Ahuja, Nitin B., and Mitra, Debdeep
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COVID-19 pandemic ,COVID-19 ,CAVITATION ,LUNG diseases ,ETIOLOGY of diseases - Abstract
The current COVID-19 pandemic is an ongoing global healthcare challenge that has caused morbidity and mortality at unprecedented levels. Since the post-COVID pulmonary complications are evolving and challenging, a study was carried out to assess pulmonary cavitation in follow-up COVID cases from an etiological perspective. The aim of this study was to assess the incidence of pulmonary cavitation and describe its etiology and evolution in moderate and severe post-COVID pneumonia patients. A prospective observational study of all patients admitted to our institution with moderate or severe COVID pneumonia was carried out. Some of these patients again became symptomatic after discharge and developed pulmonary cavitation on imaging. 6.2% (n = 37) out of 589 patients admitted to our institution with moderate or severe COVID pneumonia developed pulmonary cavitation on follow-up. We describe the imaging characteristics of post-COVID cavitation and present these patients' clinical, laboratory, and microbiological parameters. Cavitary lung disease in patients with moderate to severe COVID-19 disease is not uncommon, and an etiological workup is necessary to institute timely and correct therapy. [ABSTRACT FROM AUTHOR]
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- 2024
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3. Pitfalls in Positron Emission Tomography/Computed Tomography in the Thorax and Abdomen.
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Sartin, Stephen L., Shetty, Dhanwin R., Strange, Chad D., Gayer, Gabriela, Ahuja, Jitesh, Agrawal, Rishi, and Truong, Mylene T.
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Positron emission tomography/computed tomography (PET/CT) using [18F]-fluoro-2-deoxy- D -glucose (FDG) has become the mainstay imaging modality for evaluating oncology patients with certain cancers. The most common FDG PET/CT applications include staging/restaging, assessing response to therapy and detecting tumor recurrence. It is important to be aware of potential pitfalls and technical artifacts on PET/CT in the chest and abdomen to ensure accurate interpretation, avoid unnecessary intervention and optimize patient care. [ABSTRACT FROM AUTHOR]
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- 2024
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4. The Role of Chest Radiography in Lung Cancer.
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Agrawal, Rishi, Mishra, Shubendu, Strange, Chad D., Ahuja, Jitesh, Shroff, Girish S., Wu, Carol C., and Truong, Mylene T.
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Chest radiography is one of the most commonly performed imaging tests, and benefits include accessibility, speed, cost, and relatively low radiation exposure. Lung cancer is the third most common cancer in the United States and is responsible for the most cancer deaths. Knowledge of the role of chest radiography in assessing patients with lung cancer is important. This article discusses radiographic manifestations of lung cancer, the utility of chest radiography in lung cancer management, as well as the limitations of chest radiography and when computed tomography (CT) is indicated. [ABSTRACT FROM AUTHOR]
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- 2024
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5. The Ninth Edition TNM Staging Classification for Thymic Epithelial Tumors.
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Sorin, Vera, Kirshenboim, Zehavit, Klug, Maximiliano, Ahuja, Jitesh, and Marom, Edith M.
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Staging classification is essential in cancer management and is based on three components: tumor extent (T), lymph node involvement (N), and distant metastatic disease (M). For thymic epithelial malignancies, clinical Tumour, Node, Metastasis (cTNM) staging is primarily determined by imaging, making radiologists integral to clinical practice, treatment decisions, and maintaining the quality of staging databases. The ninth edition of the TNM classification for thymic epithelial tumors will be implemented in January 2025. This review outlines the definitions for the TNM categories in the updated edition, provides examples, and elaborates on the radiologist's role and imaging considerations. [ABSTRACT FROM AUTHOR]
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- 2024
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6. Imaging of Lung Cancer Staging: TNM 9 Updates.
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Erasmus, Lauren T., Strange, Chad D., Ahuja, Jitesh, Agrawal, Rishi, Shroff, Girish S., Marom, Edith M., and Truong, Mylene T.
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Imaging plays a key role in clinical staging of lung cancer and guiding therapy. A thorough understanding of the staging system including the nomenclature and updates is necessary to tailor treatment plans and optimize patient care. The 9th edition of the Tumor, Node, Metastasis staging system for lung cancer has no changes for T classification and subdivides N2 and M1c categories. In nodal staging, N2 splits into N2a, ipsilateral mediastinal single station involvement and N2b, ipsilateral mediastinal multiple stations involvement. In the staging of multiple extrathoracic metastases, M1c splits into M1c1, multiple extrathoracic metastases in one organ system and M1c2, multiple extrathoracic metastases in multiple organ systems. Awareness of the proposed changes in TNM-9 staging classification is essential to provide methodical and accurate imaging interpretation. [ABSTRACT FROM AUTHOR]
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- 2024
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7. Informativeness of Announcement Returns in Cross-border Acquisition Completion: A Perspective from Emerging Economies.
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Ahuja, Sugandh, Singh, Shveta, and Yadav, Surendra Singh
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- 2024
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8. Temperature and Composition Dependence of the Densities, Speed of Sound, and Viscosities of Binary Liquid Mixtures of Tetrahydrofuran with Methyl Acetate, Propyl Acetate, and Pentyl Acetate.
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Dubey, Gyan Prakash, Ahuja, Aarzoo, and Singh, Rachana
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- 2024
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9. Intravenous Albumin Infusion Does not Augment the Response Rate to a Combination of Exclusive Enteral Nutrition and Intravenous Steroids in Acute Severe Ulcerative Colitis: A Randomised Controlled Trial.
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Mundhra, Sandeep K, Madan, Divya, Golla, Rithvik, Sahu, Pabitra, Vuyyuru, Sudheer K, Kante, Bhaskar, Kumar, Peeyush, Thomas, David Mathew, Prasad, Shubham, Vaishnav, Manas, Verma, Mahak, Virmani, Shubi, Bajaj, Aditya, Markandey, Manasvani, Ranjan, Mukesh Kumar, Arora, Umang, Singh, Mukesh Kumar, Makharia, Govind K, Ahuja, Vineet, and Kedia, Saurabh
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Introduction Overall, 30–40% patients with acute severe ulcerative colitis [ASUC] fail intravenous [IV] steroids, requiring medical rescue therapy/colectomy. Low baseline albumin predicts steroid non-response, and exclusive enteral nutrition [EEN] has been shown to improve steroid response and albumin levels. Albumin infusion, due to its anti-inflammatory and antioxidant properties, might further improve steroid response in ASUC, which was evaluated in the present study. Methods In this open-label, randomised, controlled trial, patients with ASUC were randomised in 1:1 ratio to either albumin + standard of care [SOC] + EEN [Albumin arm] or SOC + EEN [SOC arm], over January 2021–February 2023. Both arms received 5 days of EEN with 400 mg IV hydrocortisone/day. Patients in the Albumin arm were administered 5 days of 20% weight/volume [w/v] intravenous albumin [100 ml]. Primary outcome was first, steroid failure [need for rescue medical therapy or colectomy] and second, proportion of patients with adverse events. Results In all, 61 patients [albumin: 30, SOC: 31][mean age 31.6 ± 0.4 years, male 57.4%], were included. Baseline characteristics were comparable. There was no difference in steroid failure between Albumin and SOC arms (10/30 [33.33%] vs 13/31[41.94%], p = 0.49). No adverse events were reported with albumin infusions. Colectomy rate [10% vs 9.68%, p = 1], response to salvage medical therapy [88.89% vs 76.92%, p = 0.62] and median [interquartile range] duration of hospitalisation [10.5 [7-16] vs 10 [7-20], p = 0.43] were also comparable. The long-term composite outcome of colectomy and re-admission rates was numerically higher in the Albumin than the SOC arm [37.04% vs 17.86%, p > 0.05], although this did not reach statistical significance. Conclusion There was no benefit of intravenous albumin infusion as an adjunct to IV steroids and EEN in patients with ASUC. [ABSTRACT FROM AUTHOR]
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- 2024
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10. Controlling release and cytotoxicity with berberine-loaded KIT-6.
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Kumari, Sushma, Ahuja, Munish, and Duhan, Surender
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In the present investigation, we employed the hydrothermal approach for crafting mesoporous KIT-6 scaffolds and the post-impregnation technique for incorporating the drug. The concentration of berberine within the mesoporous channels of KIT-6 was assessed through UV–visible spectrophotometer. The results showed that the drug molecules were well integrated into the structure of KIT-6, displaying the material's 3D cubic mesoporous shape and its notable specific surface area of 1376 m
2 /g. The in vitro drug release profile was investigated in phosphate-buffered saline (pH = 6.8), and the findings point to the possibility of controlling the drug release quantity by loading the drug into the carrier. Using Vero cell lines, the toxicity of the drug-free and drug-loaded samples was examined and it was concluded that by adding berberine to the mesoporous matrix, the drug's toxicity was dramatically lowered. [ABSTRACT FROM AUTHOR]- Published
- 2024
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11. Challenges in diagnosis of thalassemia syndromes.
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Kaur, Gurpreet, Chatterjee, Tathagata, Ahuja, Ankur, and Sen, Arjit
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PREIMPLANTATION genetic diagnosis ,HIGH performance liquid chromatography ,ERYTHROCYTES ,MEDICAL screening ,MEDICAL care - Abstract
Hemoglobinopathies are a group of autosomal recessive disorders characterized by either a reduced synthesis of one or more normal globin chains or the synthesis of a structurally abnormal globin chain or, in a few cases, by both that is, the reduced synthesis of a haemoglobin (Hb) variant. Depending on the mutations, these patients may exhibit distorted Hb patterns along with altered red cell indices, both of which can be used to support identification by diagnostic tools. The approach in the diagnosis of hemoglobinopathies and thalassemia depends upon the target geographical population and aim of testing. Red cell indices, Hb pattern analysis on high-performance liquid chromatography, and Hb capillary-zone electrophoresis are the first-line screening tests, and molecular testing helps confirm the diagnosis and is also useful in prenatal and preimplantation genetic diagnosis. Thalassemia patients need lifelong medical care, receiving trasfusions and supplemental therapies, and therefore, timely diagnosis and screening is essential. In the present paper, we review the potential pitfalls and interfering factors in their diagnosis. [ABSTRACT FROM AUTHOR]
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- 2024
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12. Primary intracerebral pleomorphic liposarcoma in a young male.
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Parkhi, Mayur, Chatterjee, Debajyoti, Ahuja, Chirag Kamal, and Radotra, Bishan Das
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SOFT tissue tumors ,MAGNETIC resonance imaging ,CENTRAL nervous system ,FRONTAL lobe ,LIPOSARCOMA ,BRAIN imaging - Abstract
Liposarcoma is the commonest soft tissue neoplasm, usually located in the deep soft tissue of the limbs. The central nervous system (CNS) as the primary site is exceedingly rare. We report a 35-year-old male patient who presented with seizure and weakness of the left half of the body for three months. The magnetic resonance imaging of the brain revealed a large solid partially necrotic lesion in the right posterior frontal lobe with perilesional edema. The tumour was firm, intra-axial, not adherent to the dura, and was completely excised. Based on the morphology, immunohistochemistry, and imaging findings, the diagnosis of primary intracerebral pleomorphic liposarcoma was rendered. Post-operatively, the patient had an uneventful follow-up. Pleomorphic liposarcoma is a rare CNS tumor with aggressive behavior, high potential for local recurrence, and distant metastasis. However, the acquaintance with intracranial liposarcoma is limited because of its rarity, and thus, no standard treatment protocol is of consensus. [ABSTRACT FROM AUTHOR]
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- 2024
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13. An Enantioselective Decarboxylative Glycolate Aldol Reaction.
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Rahman, Md. Ataur, Rehan, Mohammad, Cellnik, Torsten, Ahuja, Brij Bhushan, and Healy, Alan R.
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- 2024
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14. Transcription Factor Engineering in Aspergillus nidulans Leads to the Discovery of an Orsellinaldehyde Derivative Produced via an Unlinked Polyketide Synthase Gene.
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Rabot, Chris, Grau, Michelle F., Entwistle, Ruth, Chiang, Yi-Ming, Zamora de Roberts, Yamilex, Ahuja, Manmeet, Oakley, C. Elizabeth, Wang, Clay C. C., Todd, Richard B., and Oakley, Berl R.
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- 2024
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15. Glycation Produces Topologically Different α‑Synuclein Oligomeric Strains and Modulates Microglia Response via the NLRP3-Inflammasome Pathway.
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Kumari, Manisha, Bisht, Krishna Singh, Ahuja, Kriti, Motiani, Rajender K., and Maiti, Tushar Kanti
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- 2024
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16. Hip capsular pattern and chronic non-specific low back pain –A case controlled prospective study.
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Mohan Kumar, Padala, Sharma, Deep, Jagadevan, Mohanakrishnan, Mohanakrishnan, Bhanumathy, Murugesan, Salaja, Ahuja, Devdeep, Venkatachalam, Manivannan, and Anand, Gopala Krishnan
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Individuals with chronic nonspecific low back pain (CNLBP) presents with altered lumbosacral biomechanics, potentially stemming from compromised hip joint mobility. The objective of our study was to assess hip range of motion (ROM) and hamstring flexibility in individuals with CNLBP to ascertain the presence of a hip capsular pattern in relation to age-matched controls. This study was conducted at a tertiary hospital between July 2017 and September 2018, with approval from the institutional review board (JIP/IEC/2017/0044). Inclusion criteria encompassed axial or non-radiating pain primarily in the back for more than 3 months with no definitive pathology. A group of individuals with CNLBP (n = 27) and a control group (n = 30) of age-matched healthy volunteers were included. The observers were blinded to grouping. Bilateral hip range of motion and hamstring flexibility were measured. Individuals with CNLBP exhibited a significant mean reduction in hip adduction (9.68 & 8.8
o ) and internal rotation (7.19 & 7.09°) of the right and left hips, respectively. Additionally, there was a mean increase in flexion (7.68 & 7.71°), extension (6.99 & 8.64°), abduction (7.08 & 8.02°), and external rotation (20.4 & 20.1°) of the right and left hips, respectively, compared to controls (p < 0.01). Notably, hamstring flexibility did not show a significant difference (P > 0.05). Based on this study, it is plausible that individuals with CNLBP may exhibit a hip capsular pattern (FABER), with the exception of flexion, when compared to age-matched normal individuals. Also, it was also noted that hamstring tightness did not accompany CNLBP. [ABSTRACT FROM AUTHOR]- Published
- 2024
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17. Gastrointestinal endoscopy 30-day-associated bacteremia: Nonoutbreak 5-year review in an inner-city, tertiary-care hospital.
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Khoury, Fouad, Pezzone, Michael, Aijazi, Muaz, Fons, Isabella, Araujo, Denise, Kondaveeti, Bhagat, Ahuja, Ashish, and Yassin, Mohamed
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Gastrointestinal endoscopic procedures (GIEP's) are an essential part of patient care both diagnostically and therapeutically. Post-GIEP infections may be higher than previously reported and may not have been accurately captured in the past. The aim of this study was to determine the incidence and associated factors of bacteremia associated with GIEP's. This is retrospective study of GIEPs performed over a five-year period (2018-2022) at an academic medical center. Electronic health records (EHR) identified GIEPs and positive blood cultures within 30 days of procedure. Statistical analysis was performed using non-parametric testing to compare variables due to the small number of positive blood cultures. EHR identified 18,986 GIEP's and 52 true and unique bacteremia out of 17,093 blood cultures during the five-year study period. The highest rate of positive blood culture of 2.84% (18/ 634) was associated with ERCP and the lowest 0.08% (7/ 9029) was associated with colonoscopy. Our study showed a reflection of the endemic rate of bacteremia post GIEP's. Our study cannot differentiate endogenous infection versus contaminated (exogenous) endoscopes. ERCP procedures are disproportionately associated with higher incidence of bacteremia. Clinical surveillance in non-outbreak settings is essential for estimating GIEP related infections. It should be combined with endoscopic reprocessing audits for appropriate prevention of GIEP associated infections. • Clinical surveillance for endoscope-associated infections. • Adherence to quality endoscope reprocessing is essential to patient safety. • Endemic level of infection is a better estimate for infection risk than outbreaks. [ABSTRACT FROM AUTHOR]
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- 2024
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18. Efficacy and safety of mirikizumab in patients with moderately-to-severely active Crohn's disease: a phase 3, multicentre, randomised, double-blind, placebo-controlled and active-controlled, treat-through study
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Ferrante, Marc, D'Haens, Geert, Jairath, Vipul, Danese, Silvio, Chen, Minhu, Ghosh, Subrata, Hisamatsu, Tadakazu, Kierkus, Jaroslaw, Siegmund, Britta, Bragg, Sonja Michelle, Crandall, Wallace, Durand, Frederick, Hon, Emily, Lin, Zhantao, Lopes, Michelle Ugolini, Morris, Nathan, Protic, Marijana, Carlier, Hilde, Sands, Bruce E, Tron, Emiliano, Dorado, Fernanda Dorado, Thin, Lena, Leong, Rupert, Seltenreich, Hans, Christensen, Britt, Croft, Anthony, Ghaly, Simon, Koch, Robert, Reinisch, Walter, Heeren, Sonja, Bossuyt, Peter, Ferrante, Marc, Maximiano, Fabio Luiz, Sassaki, Ligia Yukie, Baia, Carolina, Poli, Debora, de Sousa Carlos, Alexandre, de Magalhaes Francesconi, Carlos Fernando, De Sa Rolim, Alexander, Razera, Julio, Simoes Neto, Joaquim, Rocco, Rodrigo, Stifft, Jonathas, Soldera, Jonathan, Silva, Genoile, Mendes Clemente, Cintia, Di Felice Boratto, Sandra, Teixeira de Campos, Luciana, Rodrigues Borba, Marcelo, Rosenfeld, Gregory, Ponich, Terry, Lim, Allen, Williams, Chadwick, Musgrave, Bruce, Gauthier, Stephane, Liu, Wenjia, Wang, Chengdang, Guo, Hong, Chen, Chunxiao, Chen, Yan Chen, Cao, Qian, Zhong, Jie, Xu, Min, Wang, Yufang, Zheng, Changqing, Gao, Xiang, Chen, Youxiang, Miao, Yinglei, Wang, Lin, Liu, Deliang, Wang, Bangmao, Song, Zhengji, Liu, Xiaowei, Chen, Baili, Jiang, Yi, Zhan, Qiang, Zhang, Kaiguang, Shen, Hong, Li, Zhaotao, Wang, Xiaoyan, Wang, Mei Wang, Tian, De'an, Chen, Lei, Tang, Wen, Borzan, Vladimir, Krznaric, Zeljko, Volfova, Miroslava, Pumprla, Jiri, Veberova, Lucie, Tichy, Michal, Gregar, Jan, Stepek, David, Ulbrych, Jan, Drastich, Pavel, Papik, Zdenek, Matous, Jan, Lukas, Martin, Koskova, Radka, Fallingborg, Jan, Altwegg, Romain, Fotsing, Ginette, Laharie, David, Nancey, Stephane, Peyrin, Laurent, Schreiber, Stefan, Hoffmann, Jörg, Seidler, Ursula, Fechner, Lars, Arelin, Katrin, Contzen, Christel, Trenn, Guido, Schaum, Thomas, Schoettker, Katrin, Bachmann, Oliver, Encke, Jens, Ibe, Michael, Jakobeit, Christian, Varga, Marta, Salamon, Agnes, Kafony, Andras, Horvat, Gyula, Heringh, Zsanett, Bezzegh, Katalin, Izbeki, Ferenc, Szalai, Laszlo, Schnabel, Robert, Samanta, Jayanta, Banerjee, Rupa, Subramanian, Ganesh, Mukewar, Shrikant, Bansal, Naresh Kumar, Sood, Ajit, Shankar Bagepally, Ravi, Kumar, Porika Shravan, Shrimal, Pankaj, Shah, Saumin, Pai, Nitin, Ahuja, Vineet, Melzer, Ehud, Assy, Nimer, Goldin, Eran, Shirin, Haim, Segal, Arik, Lahat, Adi, Saibeni, Simone, Luzza, Francesco, Danese, Silvio, Caprioli, Flavio, Annunziata, Maria Laura, Fantini, Massimo, Matsuda, Koichiro, Takagi, Sho, Kanmura, Shuji, Goto, Mitsuhide, Ashida, Toshifumi, Nishimata, Nobuaki, Kawakami, Kazuhiko, Ishiguro, Yoh Ishiguro, Maemoto, Atsuo Maemoto, Naito, Yuji Naito, Naoe, Hideaki, Nakase, Hiroshi, Iida, Tomohiro, Akiyama, Junichi, Yoshioka, Masao, Abe, Yasuhiko, Takeuchi, Ken, Kawai, Mikio, Hirai, Fumihito, Horiki, Noriyuki, Park, Sang Hyoung, Park, Dong II, Kang, Sang Bum, Jung, Min Kyu, Jang, Byung Ik, Lee, Yoo Jin, Shin, SungJae, Kim, Tae-oh, Kim, Hyun-Soo, Lee, Bo-In, Lee, Jonghun, Kim, Hyo Jong, Choi, Chang Hwan, Kim, Dongwoo, Eun, Chang Soo, Kang, Ben, Pokrotnieks, Juris, Kiudelis, Gediminas, Ramirez, Karina, Vega Fonseca, Jose Luis, Laheij, Robert, Kierkus, Jaroslaw, Klopocka, Maria, Wylegala, Zbigniew, Mroziak, Beata, Wojcik, Katarzyna, Korczowski, Bartosz, Gawdis, Beata, Danilkiewicz, Wit, Olszanecka, Magdalena, Krzykowska, Jolanta, Jamrozik, Zofia, Duszynska, Malgorzata, Ciesiolkiewicz, Agnieszka, Baluta, Malgorzata, Horynski, Marek, Leszczyszyn, Jaroslaw, Rozumek, Grzegorz, Firkowski, Lukasz, Konopko, Marzena, Orleanski, Jakub, Filip, Rafal, Wiechowska, Anna, Niezgoda, Krzysztof, Mateescu, Radu, Craciun, Eugeniu, Chioncel, Camelia, Musat, Marioara, Voiosu, Theodor Alexandru, Trofimov, Vasily, Shchukina, Oksana, Pershko, Anatoly, Fedorishina, Olga, Chumakova, Galina, Bakulin, Igor, Osipenko, Marina, Nikolin, Denis, Barysheva, Olga, Alexeeva, Olga, Zakharov, Konstantin, Khodareva, Irina, Tkachev, Alexander, Golovenko, Alexey, Popova, Veronika, Kashnikov, Vladimir, Vershinina, Maria, Makarchuk, Pavel, Valuyskikh, Ekaterina, Crevar, Slobodanka, Svorcan, Petar, Radakovic, Tatjana, Hlavaty, Tibor, Bunganic, Ivan, Fedurco, Miroslav, Kalisova, Iveta, Balaz, Jozef, Mihalkanin, Lubomir, Martin Arranz, Maria Dolores, De Teresa Parreno, Luis, Sans Cuffi, Miquel, Hernandez Camba, Alejandro, Brand, Stephan, Juillerat, Pascal, Seibold, Frank, Demirci, Hakan, Tezel, Ahmet, Simsek, Halis, Kiyici, Murat, Gonen, Can, Hulagu, Sadettin, Karakan, Tarkan, Cekin, Ayhan, Altintas, Engin, Guven, Kadri, Akpinar, Hale, Ozin, Yasemin, Erzin, Yusuf, Demir, Mehmet, Temel, Tuncer, Lohdanidi, Tetiana, Ivanov, Valeriy, Ivanishyn, Olha, Golovchenko, Oleksandr, Gerasymenko, Oksana, Danyliuk, Svitlana, Vyshyvanyuk, Vira, Datsenko, Olena, Stanislavchuk, Mykola, Rishko, Yaroslava, Kyrychenko, Olga, Donets, Dmytro, Shapovalova, Yana, Yurkiv, Andriy, Oliinyk, Oleksandr, Tsarynna, Nataliia, Fediv, Oleksandr, Poplyonkin, Yevgen, Kaser, Arthur, Hoque, Syed, Thomas, Hawys, Iyengar, Shalini, Newman, Frederic, Fogel, Ronald, Pedersen, Peder, Gonzales, Chad, McCord, Gregory, Galambos, Michael, Lamb, Paul, Schneider, Jeffrey, Bhandari, Bal Raj, Weiss, Michael, Thai, Christine, Shapiro, Michael, Younes, Ziad, Murali, Narayanachar, Hou, Jason, Williams, Todd, Khalid, Omer, Hsu, Connie, Bartalos, Christopher, Arimie, Calin, Mumtaz, Syed, Crespo, Israel, Marchioni Beery, Renee, Tuskey, Anne, Gaible, Ryan, Cutler, Alan, Afzali, Anita, Stuart, Kevin, Ibegbu, Eric, Irizarry-Roman, Moises, Harris, Kimberly, Agyei, Kwadwo, Jones, Frances, Sheikh, Aasim, Zakko, Liam, Cohen, Erica, Duvall, George, Al Kharrat, Houssam, Wohlman, Robert, Holderman, William, Schulman, Alan, Lidofsky, Sheldon, Wayne, Peter, Victores, Luis, Stone, Christian, Onwueme, Kenolisa, Fischer, Monika, Shahid, Shabana, Moore, Keith, Katz, Jeffry, Bullock, Jeff, and Fahed, Julien
- Abstract
Mirikizumab, a humanised monoclonal antibody that inhibits IL-23p19, is effective in moderate-to-severe ulcerative colitis. We aimed to evaluate the efficacy and safety of mirikizumab in patients with moderately-to-severely active Crohn's disease.
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- 2024
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19. Temperature and Composition Dependence of the Densities, Speed of Sound, and Viscosities of Binary Liquid Mixtures of Tetrahydrofuran with Methyl Acetate, Propyl Acetate, and Pentyl Acetate
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Dubey, Gyan Prakash, Ahuja, Aarzoo, and Singh, Rachana
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Densities, speeds of sound, and viscosity values have been experimentally measured at temperature ranges from (298.15 to 308.15 K) and a pressure of 0.1 MPa for the whole compositions for the binary mixtures of tetrahydrofuran with methyl acetate, propyl acetate, and pentyl acetate. Excess molar volume (VmE), excess molar isentropic compressibility (ΔKS,mE), viscosity deviation (Δη), excess Gibb’s free energy of activation for viscous flow (ΔG*E), and partial molar volume (V̅m,i) have been derived with the help of experimental results and fitted to an extended Redlich–Kister equation by the least-squares approach that simultaneously considers the dependency on composition and temperature. For the calculated and experimental data, the standard deviations are estimated. The magnitude and sign of these excess properties have been utilized to explain the results in terms of structural and intermolecular interactions. Various semiempirical viscosity relations were tested using the data of viscosity of binary mixtures.
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- 2024
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20. Performance Evaluation of Dual Hop Mixed FSO RF System Using Differential Chaos Shift Keying With Secrecy Analysis
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Narang, Ghanishtha, Aggarwal, Mona, Kaushal, Hemani, Kumar, Atul, Ahuja, Swaran, and Shukla, Neeraj Kumar
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Free space optical (FSO) communication system is a promising candidate for today's era of intelligent networks for the reason that it has potential advantages such as, high data rates, large bandwidth, non-licensed spectrum, line-of-sight communication and many more. Relay-assisted communication provides an additional boost to system's performance by expanding its capacity, coverage range, enhancing data rates and mitigating the effect of turbulence. In this manuscript, three dual-hop systems are considered i.e., FSO-FSO, radio frequency (RF)-FSO and FSO-RF systems employing decode and forward (DF) relaying protocol. Furthermore, chaotic signals are incorporated in these systems to enhance their confidentiality using differential chaos shift keying (DCSK). This is demonstrated by performing secrecy analysis on the system. Here, it is assumed that RF link experiences Nakagami-m fading while the affect of fading in FSO channel is caused by Gamma-Gamma turbulence along with pointing errors. The average bit error rate (BER) of three proposed systems is analyzed, and the results indicated that the FSO-RF-DCSK system outperformed the other three in terms of performance. Finally, secrecy performance is accomplished using secrecy outage probability (SOP) as a metric for the proposed systems. The findings are noteworthy as FSO-FSO-DCSK system demonstrates superior performance as compared to FSO-RF-DCSK and RF-FSO-DCSK systems in terms of secrecy. As compared to other counterparts, FSO-FSO-DCSK system shows an improvement of more than 10 order of magnitude in terms of signal-to-noise (SNR) ratio.
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- 2024
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21. Yeast based biorefinery for xylitol and ethanol production from sugarcane bagasse
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Ahuja, Vishal, Chinnam, Sampath, and Bhatt, Arvind Kumar
- Abstract
Lignocellulosic biomass is one of the biggest renewable reservoirs for organic carbon that can be exploited as feed for various value-added products like fuel, nutraceuticals enzymes, and proteins. Biofuel is not only valuable but also a top priority target to address the energy crisis. Hence the current work was planned to valorize the cellulose-rich residual biomass (CRB), left after xylitol production for ethanol fermentation by yeast. Xylose-rich hydrolysate was prepared with dilute acid pretreatment (0.1 M H2SO4, 145 ℃, and 90 min) for xylitol production and CRB was further processed for enzymatic hydrolysis (crude cellulase). Acid hydrolysis offered maximum reducing sugars of 0.33±0.01 g⋅g−1biomasscomprised of xylose 0.31±0.01 g⋅g−1biomass. Besides sugar, biomass hydrolysis also produced 0.21 ±0.01 g.L−1furans and 0.34±0.11 g.L−1acetic acid. Pichia guilliermondiiRLV-04 (MH588234.1) have shown 0.90±0.02 gxylitol.g−1xyloseconversion of xylose to xylitol. The primary process has left more than 50–55 % biomass that was rich in cellulose. Enzymatic hydrolysis of the CRB using crude cellulase showed maximum glucose recovery of 0.56±0.02 g⋅g−1available celluloseat 15 FPU at 50 ℃, after 12 h. In addition, yeast biomass recovered from xylitol production was hydrolysed and used as a nitrogen source. Under an anaerobic environment, a maximum ethanol yield of 0.36±0.01 g.g−1glucosewas achieved with commercial baker’s yeast while the addition of yeast biomass hydrolysate improved the alcohol yield to 0.48±0.02 g.g−1glucose. Reutilization of biocatalysts as nitrogen source not only upgraded fermentation processes but also lowered process waste and improved process economics.
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- 2024
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22. Predictors of Adolescents’ Transition Through the Stages of Change for Quitting E-Cigarettes: Findings From the Population Assessment of Tobacco and Health Study
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Ahuja, Nikhil, Kedia, Satish, Ward, Kenneth D., Jiang, Yu, and Dillon, Patrick J.
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Purpose To identify predictive factors associated with US adolescents’ transition through the stages of change for potentially quitting e-cigarettes using the Trans-theoretical model of behavior change.Design Prospective cohort study.Setting United States.Subjects We utilized data from adolescents (12-17 years) in Wave 3 of the Population Assessment of Tobacco and Health study who used e-cigarettes exclusively over the past 30 days (n = 177) and were followed up with in Wave 4.Measures Outcome variables were 3 transition categories: those who remained stagnant, those who progressed, and those who regressed in their stage of quitting e-cigarettes. Predictor variables were socio-demographics, e-cigarette harm perception, e-cigarette use at home or by important people, social norms, e-cigarette and anti-tobacco advertisements, and e-cigarette health warnings.Analysis Weighted-adjusted multinomial regression analysis was performed to determine the association between predictor and outcome variables.Results From Wave 3 to Wave 4, 19% of adolescents remained stagnant; 73.3% progressed; and 7.7% regressed. Adolescents were less likely to progress in their stage of change if they perceived nicotine in e-cigarettes to be “not at all/slightly harmful” (AOR = .26 [95% CI: .25, .27], P< .001); reported important people’s use of e-cigarettes (AOR = .18 [95% CI: .05, .65, P= .009); and “rarely” noticed e-cigarette health warnings (AOR = .28 [95% CI: .08, .98, P= .054).Conclusion Intervention efforts must target specific predictive factors that may help adolescents quit e-cigarettes.
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- 2024
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23. An Enantioselective Decarboxylative Glycolate Aldol Reaction
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Rahman, Md. Ataur, Rehan, Mohammad, Cellnik, Torsten, Ahuja, Brij Bhushan, and Healy, Alan R.
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Herein, we report the application of a benzyloxy-functionalized malonic acid half thioester as an activated ester equivalent in a highly enantioselective decarboxylative glycolate aldol reaction. This robust method operates at ambient temperature, tolerates air and moisture, and generates CO2as the only byproduct. The synthetic applicability of the method is demonstrated by the large-scale enantiodivergent synthesis of α-benzyloxy-β-hydroxybutyric acid thioester and its subsequent conversion to diverse polyoxygenated building blocks, deoxy-sugars, and (−)-angiopterlactone B.
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- 2024
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24. Transcription Factor Engineering in Aspergillus nidulansLeads to the Discovery of an Orsellinaldehyde Derivative Produced via an Unlinked Polyketide Synthase Gene
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Rabot, Chris, Grau, Michelle F., Entwistle, Ruth, Chiang, Yi-Ming, Zamora de Roberts, Yamilex, Ahuja, Manmeet, Oakley, C. Elizabeth, Wang, Clay C. C., Todd, Richard B., and Oakley, Berl R.
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Secondary metabolites are generally produced by enzymes encoded by genes within a biosynthetic gene cluster. Transcription factor genes are frequently located within these gene clusters. These transcription factors often drive expression of the other genes of the biosynthetic gene cluster, and overexpression of the transcription factor provides a facile approach to express all genes within a gene cluster, resulting in production of downstream metabolite(s). Unfortunately this approach is not always successful, leading us to engineer more effective hybrid transcription factors. Herein, we attempted to activate a putative cryptic biosynthetic gene cluster in Aspergillus nidulansusing a combination of transcription factor engineering and overexpression approaches. This resulted in the discovery of a novel secondary metabolite we term triorsellinaldehyde. Surprisingly, deletion of the polyketide synthase gene within the gene cluster did not prevent triorsellinaldehyde production. However, targeted deletion of a polyketide synthase gene elsewhere in the genome revealed its role in triorsellinaldehyde biosynthesis.
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- 2024
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25. Investigation of perovskite KGeBr3 for use in perovskite-Si tandem solar cell using DFT approach
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Katti, Aavishkar, Saha, Debabrata, Ghate, Pundlik, and Ahuja, Ushma
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- 2024
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26. Facial recognition in the real world: A state-of-the-art survey and new framework
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Chauhan, Rakhi, Sethi, Monika, and Ahuja, Sachin
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- 2024
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27. Neurocognitive Functions in Opioid Dependence: Comparisons Between Opioid Categories
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Ghosh, Abhishek, Shaktan, Alka, Verma, Abhishek, Nehra, Ritu, Basu, Debasish, Rana, Devender K, Ahuja, Chirag K, Modi, Manish, and Singh, Paramjit
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We examined the differences in neurocognitive functions in individuals dependent on heroin (n= 120), pharmaceutical (n= 52), and natural opioids (n= 66) and compared with healthy controls (HC, n= 94). We estimated independent effects of the opioid groups on cognitive tests, adjusted for effect modifiers. Pharmaceutical opioid dependent group performed worse than HC in Wisconsin Card Sorting Test in conceptual level response and trials to complete first category. Pharmaceutical and heroin groups had higher error scores than HC in verbal and visual N-Back Tests (NBTs). There was no significant difference between pharmaceutical and heroin groups, but both had higher error scores than the natural opioid users in NBTs. Time to complete Trail Making- A test was higher in pharmaceutical than in natural opioid group. The natural opioid group required more trials than HC to complete the first category. Pharmaceutical opioid group had worst cognitive impairment. Cognitive functions are relatively spared in natural opioid-dependent group.
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- 2024
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28. Unicentric Castleman disease masquerading as a gluteal mass: A diagnostic challenge
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Ahuja, Sana, Khan, Adil Aziz, Khalid, Saifullah, and Zaheer, Sufian
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Castleman disease, a rare lymphoproliferative disorder characterized by non-neoplastic lymph node enlargement, typically presents as nodal involvement, while extranodal manifestations are uncommon. We present a unique case of unicentric Castleman disease localized to the gluteal region in a 27-year-old female. Initially mistaken for a neurogenic or vascular tumour, fine needle aspiration cytology (FNAC) revealed a polymorphous population of lymphoid cells with numerous traversing capillaries suggestive of reactive hyperplasia, possibly Castleman disease, which was later confirmed by histopathology. This case highlights the diagnostic challenges posed by rare extranodal presentations of Castleman disease and underscores the importance of interdisciplinary collaboration in accurate diagnosis and management.
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- 2024
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29. An objective way to predict remission and relapse in Cushing disease using Bayes’ theorem of probability
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Gupta, N., Konsam, B. D., Walia, R., Bhadada, S. K., Chhabra, R., Dhandapani, S., Singh, A., Ahuja, C. K., Sachdeva, N., and Saikia, U. N.
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Objective: In this study on patients with Cushing disease, post-transsphenoidal surgery (TSS), we attempt to predict the probability of remaining in remission, at least for a year and relapse after that, using Bayes’ theorem and the equation of conditional probability. The number of parameters, as well as the weightage of each, is incorporated in this equation. Design and methods: The study design was a single-centre ambispective study. Ten clinical, biochemical, radiological and histopathological parameters capable of predicting Cushing disease remission were identified. The presence or absence of each parameter was entered as binary numbers. Bayes’ theorem was applied, and each patient’s probability of remission and relapse was calculated. Results: A total of 145 patients were included in the study. ROC plot showed a cut-off value of the probability of 0.68, with a sensitivity of 82% (range 73–89%) and a specificity of 94% (range 83–99%) to predict the probability of remission. Eighty-one patients who were in remission at 1 year were followed up for relapse and 23 patients developed relapse of the disease. The Bayes’ equation was able to predict relapse in only 3 out of 23 patients. Conclusions: Using various parameters, remission of Cushing disease can be predicted by applying Bayes’ theorem of conditional probability with a sensitivity and a specificity of 82% and 94%, respectively. This study provided an objective way of predicting remission after TSS and relapse in patients with Cushing disease giving a weightage advantage to every parameter.
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- 2024
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30. Radiation Recall Pneumonitis: Imaging Appearance and Differential Considerations.
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Celina Jo, Nahyun, Shroff, Girish S., Ahuja, Jitesh, Agrawal, Rishi, Price, Melissa C., and Wu, Carol C.
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- 2024
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31. Robust and Secure Video Authentication: A Hash-Based Watermarking Approach.
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Saini, Preeti and Ahuja, Rakesh
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DATA privacy ,COPYRIGHT ,COMPUTER performance ,INFORMATION sharing ,WATERMARKS - Abstract
While video is a vital component of modern communication, it also presents opportunities for manipulation and unauthorized access. The preservation and authenticity of video footage have become increasingly important as digital video data expands. Video authentication techniques ensure video integrity, confidentiality, availability, data sharing, and privacy during the data lifecycle. A video authentication technique that can prevent the copying, tampering, or alteration of video footage without permission is digital watermarking. The suggested method is notable for its ease of use, efficacy, and efficiency in handling the video authentication problem. Whereas current methods could use intricate algorithms or need much processing power, the suggested approach stands out by directly utilizing hash-based watermarking that employs SHA256 hashing and authentication. It is appropriate for realtime applications as it offers strong security against tampering while preserving computing efficiency by embedding the hash value of each odd-numbered frame into the subsequent evennumbered frame. The proposed approach is a secure and economical option for video authentication, improving the security and authenticity of video content for use in various applications. [ABSTRACT FROM AUTHOR]
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- 2024
32. The Merits of a Folded Graphene Nanodevice for Reliable DNA Sequencing.
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Kumawat, Rameshwar L., Shukla, Vivekanand, Jena, Naresh K., Ahuja, Rajeev, and Pathak, Biswarup
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- 2024
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33. Translation of Epigenetics in Cell-Free DNA Liquid Biopsy Technology and Precision Oncology.
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Tan, Wan Ying, Nagabhyrava, Snigdha, Ang-Olson, Olivia, Das, Paromita, Ladel, Luisa, Sailo, Bethsebie, He, Linda, Sharma, Anup, and Ahuja, Nita
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- 2024
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34. Does Integration of Technology and Customization of Implants Produce Better Outcomes in Post-Traumatic Orbital Reconstruction? A Systematic Review and Meta-Analysis.
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Saptarshi, Varad Rajendra, Natarajan, Srivalli, Sudhakar Baviskar, Padmakar, Arjun Ahuja, Suraj, and Dinesh Dhirawani, Aditya
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This review aims to compare and evaluate the outcomes achieved by integrating technological aids and the influence of different implant designs in the reconstruction of post-traumatic orbital defects. Electronic searches of the MEDLINE, Embase, Cochrane Library, and Google Scholar databases until March 2023 were conducted. Clinical controlled trials, observational studies, cohort studies, and retrospective studies were identified and included. The predictor variables were the integration of technological aids namely, computer-assisted surgical planning, mirror image overlay, and intraoperative navigation with the utilization of different orbital implant designs (standard orbital meshes, preformed implants, prebent implants, and patient-specific implant [PSI]) during post-traumatic orbital reconstruction. The primary outcome variables were orbital volume, diplopia, and enophthalmos. Weighted or mean difference and risk ratios at 95% confidence intervals were calculated, where P <.05 was considered significant and a random effects model was adopted. This review included 7 studies with 560 participants. The results indicate that the difference in postoperative orbital volume between affected and nonaffected eye showed no statistically significant difference between PSI and prebent group (mean difference, −0.41 P =.28, I
2 = 46%). PSI group resulted in diplopia 0.71-fold less than that of the standard orbital mesh group but was not statistically significant (P =.15). Standard orbital mesh group is 0.30 times at higher risk of developing enophthalmos as compared to PSI group (P =.010). The literature suggests PSIs are preferred for patients with large defects (Jaquiéry's III-IV), whereas prebent implants are equally effective as PSIs in patients with preserved infraorbital buttress and retrobulbar bulge. PSIs are associated with improved outcomes, especially for correcting enophthalmos. The data suggests the potential efficacy of prebent implants and PSIs in orbital volume corrections. There is a lack of randomized studies. This review should serve as a recommendation for further studies to contribute to the existing literature. [ABSTRACT FROM AUTHOR]- Published
- 2024
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35. An Unusual Neurological Complication of Multiple Wasp Stings: AIDP.
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Kaur, Amandeep, Gupta, Monica, Ahuja, Ishreen, and Koul, Anuka
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THERAPEUTIC use of immunoglobulins ,PERIPHERAL nervous system ,NONSTEROIDAL anti-inflammatory agents ,BITES & stings ,IMMUNOGLOBULINS ,GUILLAIN-Barre syndrome ,PARKINSON'S disease ,MUSCLE weakness ,INFLAMMATION ,STROKE ,PARALYSIS ,NERVE conduction studies ,VASCULAR diseases ,NONPRESCRIPTION drugs ,CEREBROSPINAL fluid - Abstract
Background and Aims: Wasp stings often result in vascular problems and local irritation. Rarely neurological difficulties result from a delayed immune response, which causes acute inflammatory demyelinating polyradiculopathy, stroke and Parkinson's disease. Patient's Concern: Here we are describing a young male, who presented to us with ascending paralysis a few days after being stung by multiple wasps. The patient did not have any infection or recent vaccination. Nerve conduction velocity (NCV) suggested increased latencies in peripheral nerves. Hence, a temporality between Guillain–Barré syndrome (GBS) and the wasp sting was hypothesised. Intervention: After establishing a diagnosis, the patient received standard treatment for acute inflammatory demyelinating polyneuropathy (AIDP). Intravenous immunoglobulins were given over 5 days in divided doses. The patient had gross improvement in the weakness by day 7 and fully recovered in 2 months. Conclusion: This case study highlights the possibility of acute demyelinating polyradiculopathy, a serious neurological consequence that can arise from wasp stings. Nevertheless, the pathophysiology of the same is not well recognised in the literature. This emphasises the importance of identifying uncommon causes of GBS and comprehending the mechanism and curative measures. [ABSTRACT FROM AUTHOR]
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- 2024
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36. Seizure and Intracranial Hemorrhage: An Early Complication of Bee Sting – A Case Report.
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Kaur, Amandeep, Gupta, Monica, Ahuja, Ishreen, and Kak, Kapil
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INTRACRANIAL hemorrhage ,HETEROCYCLIC compounds ,BITES & stings ,PREFRONTAL cortex ,MAGNETIC resonance imaging ,EPILEPSY ,ANAPHYLAXIS ,H2 receptor antagonists ,LIPS ,DEXAMETHASONE ,DISEASE complications - Abstract
Background: Bee sting is a common entity during the summer season and is rarely associated with devastating complications such as myocardial infarction, pulmonary edema, bleeding, and rhabdomyolysis, neurological complications can occur after multiple stings. However, single bee venom infestation resulting in such complications is rare. Patient's Concern: Here, we are describing a young male, who presented to us with a seizure episode, soon after bitten by a bee sting around his lips. The patient did not have hypertension, diabetes, other risk factors for seizure, or any history of trauma but the patient's computed tomography head showed cerebral hematoma. Intervention: The patient was managed immediately with an injection of antiepileptics with intravenous (IV) fluids, antihistaminics, and IV steroids. The patient had gross improvement in the sensorium and was seizure free for 48 h under observation. The patient was discharged on the 4
th day of admission with 100% recovery. Conclusion: This case report emphasizes the potential for severe neurological complications following bee stings in the form of cerebral hematoma which is clinically important to recognize early and further research is required to better understand the mechanism and management strategies. [ABSTRACT FROM AUTHOR]- Published
- 2024
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37. Preventive repression: Protest policing in New Delhi
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Singh, Rajkamal, Hemrajani, Rahul, and Ahuja, Amit
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ABSTRACTStates view protests as disruptive and police them. Scholarship points to selective policing of protests that endanger law and order as well as those organized by minority groups. A common form of protest policing in cities is requiring protestors to obtain permits in advance. We use interviews with protestors and the police in New Delhi to examine their perception of protest policing. We test these perceptions empirically using an original dataset of 4,921 protest applications submitted to the Delhi police between 2016 and 2019. We find that the rejection of protest applications is driven by the disruptive threat that they pose rather than the identity of the protesting group. However, the police disproportionately flag protest applications by religious minorities for threat assessment. A postcolonial police force, which privileges preservation of order over its other functions, regularly curtails the democratic freedom to protest.
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- 2024
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38. Using an Innovative Model to Improve Performance of the Infant Hip Examination
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Joshi, Neha S., Zven, Sidney, Graziose, Brian, Manno, Grace, Manwaring, Lauren, Ahuja, Arshiya, Tyrrell, Hollyce, Zafar, Nagma, Weissbrod, Elizabeth, Lopreiato, Joseph O., and Loyal, Jaspreet
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Determine if a new teaching bundle targeting developmental dysplasia of the hip screening improved interns’ examination skills across multiple pediatric residency programs.This multicenter prospective cohort study included interns across 6 pediatric residency sites within the Academic Pediatric Association’s Better Outcomes through Research for Newborns Network in 2022. Participants underwent a baseline hip examination assessment on models using a checklist derived from textbook descriptions of Galeazzi, Ortolani, and Barlow maneuvers before receiving a teaching bundle. Repeat testing occurred after instruction. Data were analyzed using t-test for continuous and χ2 test for categorical variables. Semistructured focus groups provided qualitative feedback regarding the teaching bundle.We enrolled 117 of 155 interns across 6 sites (76%) for participation in the teaching bundle. Only 2% of participants (n = 2) identified a positive Galeazzi sign at baseline, whereas 88% (n = 103, P < .001) did so on the postinstructional assessment. Although 27% of participants (n = 32) correctly identified a positive Barlow sign at baseline, 69% (n = 81, P < .001) did so on the postinstructional assessment. The ability to correctly detect a positive Ortolani sign increased from 22% (n = 26) to 92% (n = 108, P < .001). Fifteen interns participated in the semistructured focus groups, with resultant themes reinforcing the limited experience of the infant hip examination before this intervention and the positive impact of the teaching bundle.Most participants in this study did not have strong infant hip examination skills at entry into residency. A standardized teaching bundle significantly improved skills in examination technique and identifying abnormalities.
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- 2024
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39. Effectiveness of preventive treatment among different age groups and Mycobacterium tuberculosisinfection status: a systematic review and individual-participant data meta-analysis of contact tracing studies
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Martinez, Leonardo, Seddon, James A, Horsburgh, C Robert, Lange, Christoph, Mandalakas, Anna M, Martinez, Leonardo, Seddon, James, Liu, Qiao, Acuna Villaorduna, Carlos, Bonnet, Maryline, Carvalho, Anna Cristina C., Chan, Pei-Chun, Hill, Philip C, Lopez-Varela, Elisa, Donkor, Simon, Graham, Stephen M., Villalba, Julian A., Grandjean, Louis, Zellweger, Jean-Pierre, Wang, Jann-Yuan, Verhagen, Lilly M, van Schalkwykn, Cari, van der Loeff, Maarten F Schim, Sloot, Rosa, Trieu, Lisa, Ahuja, Shama Desai, Yoshiyama, Takashi, Mazahir, Rufaida, Martinsonn, Neil A, Jones-López, Edward C., Altet, Neus, Kato, Seiya, Fang, Chi-Tai, Geis, Steffen, Hauri, Anja, Long, Richard, Dobler, Claudia C, Cayla, Joan A, Chakhaia, Tsira, Chen, Cheng, García-Basteiro, Alberto L., Triasih, Rina, Huang, Li-Min, Sharma, Surendra, Hannoun, Djohar, Malone, LaShaunda L., Ling, Du-Lin, Kritski, Afrânio, Stein, Catherine M., Malik, Amyn A, Augusto, Orvalho, Vashishtha, Richa, Boulahbal, Fadila, Boom, W. Henry, Shen, Ye, Hesseling, Anneke C, Horsburgh, C. Robert, Lange, Christoph, and Mandalakas, Anna M.
- Abstract
Tuberculosis is a preventable disease. However, there is debate regarding which individuals would benefit most from tuberculosis preventive treatment and whether these benefits vary in settings with a high burden and low burden of tuberculosis. We aimed to compare the effectiveness of tuberculosis preventive treatment in exposed individuals of differing ages and Mycobacterium tuberculosisinfection status while considering tuberculosis burden of the settings.
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- 2024
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40. Next-generation phenotyping integrated in a national framework for patients with ultrarare disorders improves genetic diagnostics and yields new molecular findings
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Schmidt, Axel, Danyel, Magdalena, Grundmann, Kathrin, Brunet, Theresa, Klinkhammer, Hannah, Hsieh, Tzung-Chien, Engels, Hartmut, Peters, Sophia, Knaus, Alexej, Moosa, Shahida, Averdunk, Luisa, Boschann, Felix, Sczakiel, Henrike Lisa, Schwartzmann, Sarina, Mensah, Martin Atta, Pantel, Jean Tori, Holtgrewe, Manuel, Bösch, Annemarie, Weiß, Claudia, Weinhold, Natalie, Suter, Aude-Annick, Stoltenburg, Corinna, Neugebauer, Julia, Kallinich, Tillmann, Kaindl, Angela M., Holzhauer, Susanne, Bührer, Christoph, Bufler, Philip, Kornak, Uwe, Ott, Claus-Eric, Schülke, Markus, Nguyen, Hoa Huu Phuc, Hoffjan, Sabine, Grasemann, Corinna, Rothoeft, Tobias, Brinkmann, Folke, Matar, Nora, Sivalingam, Sugirthan, Perne, Claudia, Mangold, Elisabeth, Kreiss, Martina, Cremer, Kirsten, Betz, Regina C., Mücke, Martin, Grigull, Lorenz, Klockgether, Thomas, Spier, Isabel, Heimbach, André, Bender, Tim, Brand, Fabian, Stieber, Christiane, Morawiec, Alexandra Marzena, Karakostas, Pantelis, Schäfer, Valentin S., Bernsen, Sarah, Weydt, Patrick, Castro-Gomez, Sergio, Aziz, Ahmad, Grobe-Einsler, Marcus, Kimmich, Okka, Kobeleva, Xenia, Önder, Demet, Lesmann, Hellen, Kumar, Sheetal, Tacik, Pawel, Basin, Meghna Ahuja, Incardona, Pietro, Lee-Kirsch, Min Ae, Berner, Reinhard, Schuetz, Catharina, Körholz, Julia, Kretschmer, Tanita, Di Donato, Nataliya, Schröck, Evelin, Heinen, André, Reuner, Ulrike, Hanßke, Amalia-Mihaela, Kaiser, Frank J., Manka, Eva, Munteanu, Martin, Kuechler, Alma, Cordula, Kiewert, Hirtz, Raphael, Schlapakow, Elena, Schlein, Christian, Lisfeld, Jasmin, Kubisch, Christian, Herget, Theresia, Hempel, Maja, Weiler-Normann, Christina, Ullrich, Kurt, Schramm, Christoph, Rudolph, Cornelia, Rillig, Franziska, Groffmann, Maximilian, Muntau, Ania, Tibelius, Alexandra, Schwaibold, Eva M. C., Schaaf, Christian P., Zawada, Michal, Kaufmann, Lilian, Hinderhofer, Katrin, Okun, Pamela M., Kotzaeridou, Urania, Hoffmann, Georg F., Choukair, Daniela, Bettendorf, Markus, Spielmann, Malte, Ripke, Annekatrin, Pauly, Martje, Münchau, Alexander, Lohmann, Katja, Hüning, Irina, Hanker, Britta, Bäumer, Tobias, Herzog, Rebecca, Hellenbroich, Yorck, Westphal, Dominik S., Strom, Tim, Kovacs, Reka, Riedhammer, Korbinian M., Mayerhanser, Katharina, Graf, Elisabeth, Brugger, Melanie, Hoefele, Julia, Oexle, Konrad, Mirza-Schreiber, Nazanin, Berutti, Riccardo, Schatz, Ulrich, Krenn, Martin, Makowski, Christine, Weigand, Heike, Schröder, Sebastian, Rohlfs, Meino, Vill, Katharina, Hauck, Fabian, Borggraefe, Ingo, Müller-Felber, Wolfgang, Kurth, Ingo, Elbracht, Miriam, Knopp, Cordula, Begemann, Matthias, Kraft, Florian, Lemke, Johannes R., Hentschel, Julia, Platzer, Konrad, Strehlow, Vincent, Abou Jamra, Rami, Kehrer, Martin, Demidov, German, Beck-Wödl, Stefanie, Graessner, Holm, Sturm, Marc, Zeltner, Lena, Schöls, Ludger J., Magg, Janine, Bevot, Andrea, Kehrer, Christiane, Kaiser, Nadja, Turro, Ernest, Horn, Denise, Grüters-Kieslich, Annette, Klein, Christoph, Mundlos, Stefan, Nöthen, Markus, Riess, Olaf, Meitinger, Thomas, Krude, Heiko, Krawitz, Peter M., Haack, Tobias, Ehmke, Nadja, and Wagner, Matias
- Abstract
Individuals with ultrarare disorders pose a structural challenge for healthcare systems since expert clinical knowledge is required to establish diagnoses. In TRANSLATE NAMSE, a 3-year prospective study, we evaluated a novel diagnostic concept based on multidisciplinary expertise in Germany. Here we present the systematic investigation of the phenotypic and molecular genetic data of 1,577 patients who had undergone exome sequencing and were partially analyzed with next-generation phenotyping approaches. Molecular genetic diagnoses were established in 32% of the patients totaling 370 distinct molecular genetic causes, most with prevalence below 1:50,000. During the diagnostic process, 34 novel and 23 candidate genotype–phenotype associations were identified, mainly in individuals with neurodevelopmental disorders. Sequencing data of the subcohort that consented to computer-assisted analysis of their facial images with GestaltMatcher could be prioritized more efficiently compared with approaches based solely on clinical features and molecular scores. Our study demonstrates the synergy of using next-generation sequencing and phenotyping for diagnosing ultrarare diseases in routine healthcare and discovering novel etiologies by multidisciplinary teams.
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- 2024
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41. Trends in SARS-CoV-2 cycle threshold (Ct) values from nucleic acid testing predict the trajectory of COVID-19 waves
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Ahuja, Vishal, Bowe, Thomas, Warnock, Gayle, Pitman, Catherine, and Dwyer, Dominic E.
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Forecasting COVID-19 waves helps with public health planning and resource allocation. Cycle threshold (Ct) values obtained from positive SARS-CoV-2 nucleic acid amplification test (NAAT) results offer limited value for individual patient management, but real-time analysis of temporal trends of aggregated Ct values may provide helpful information to predict the trajectories of COVID-19 waves in the community. Ct value trends on 59,609 SARS-CoV-2 NAAT-positive results from 574,403 tests using a single testing assay system, between September 2021 and January 2023, were examined to monitor the trend of the proportion of positive NAAT with lower Ct values (≤28) in relation to changing COVID-19 case numbers over time. We applied regression with autoregressive integrated moving average errors modelling approach to study the relation between Ct values and case counts. We also developed an insight product to monitor the temporal trends with Ct values obtained from SARS-CoV-2 NAAT-positive results. In this study, the proportion of lower Ct values preceded by a range of 7–32 days the rising population COVID-19 testing rate reflecting onset of a COVID-19 wave. Monitoring population Ct values may assist in predicting increased disease activity.
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- 2024
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42. A novel strategy to enhance the quality of service (QoS) for data center traffic in elastic optical networks
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Gupta, Rajat, Aggarwal, Mona, and Ahuja, Swaran
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Elastic optical networks (EONs) offer tremendous benefits to deal with the exponential increase of the data center traffic. The granularity offered in spectrum allocation supports efficient management of available bandwidth and accommodates multiple traffic to be routed through common links. However, this brings the inherent challenges of routing and spectrum allocation (RSA) constraints. This becomes more complex for elastic optical data center networks (EODCNs), wherein multiple requests arrive at the same time, requiring identical or different bandwidths and each request may have the same or different destination and paths. Also, data requested by different users could be of varying importance levels. Under such a scenario, maintaining the quality of service (QoS) by minimizing the probability of traffic failure and bandwidth blocking is a major task for service providers. To address these problems, we propose an enhanced methodology using path prediction and link-state analysis for efficient allocation of frequency slots and reuse of bandwidth for data centers connected through EONs. Our proposed strategy intents to minimize the number of blocked requests due to non-availability of resources and reduce the failure probability. We introduce here the concept of connectivity degree and Kuhn-Munkres multi-objective optimization for spectrum allocation. We also evaluate the call request blocking probability varying the number of data centers and traffic load. The obtained results show that the proposed algorithm is highly effective in reducing the traffic failure and blocking probability for EODCNs.
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- 2024
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43. Throughput analysis of dual hop hybrid RF-VLC system with wireless energy harvesting
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Vats, Anshul, Aggarwal, Mona, and Ahuja, Swaran
- Abstract
In this paper, we study a dual hop hybrid radio frequency-visible light communication (RF-VLC) system with wireless energy harvesting technique. In the proposed model the RF channel and the VLC channel are modelled by generalized-K distribution and lambertian emission model, respectively. A decode and forward relay is used as an intermediate node where power splitting relaying (PSR) protocol is employed to harvest energy from the received RF information signal. The source transmits the information signal towards the relay via RF channel. The relay then decodes the received signal and convert it into corresponding light signal. Simultaneously the energy harvesting circuit at relay harvests the energy from the received RF signal. The relay utilizes the harvested energy to aid the transmission of the light signal towards the user situated inside the building’s room at the destination. Further, the statistics of the instantaneous SNR of the hybrid RF-VLC system at the destination are derived by employing the PSR protocol to obtain an accurate closed form analytical expression for the system’s end-to-end ergodic capacity and achievable throughput in terms of Meijer’s G function. Further, with the help of numerical simulations, we analysed the end-to-end ergodic throughput performance of the hybrid system under the influence of varying channel parameters such as signal to noise ratio, power splitting factor, shadowing parameters, distance between source & relay and source transmitted power.
- Published
- 2024
- Full Text
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44. Rectifier load analysis for electric vehicle wireless charging system
- Author
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Singh, Neha, Bhargava, Vani, and Ahuja, Hemant
- Published
- 2024
- Full Text
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45. Design & analysis of EV wireless charging topology using LCC compensation scheme
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Singh, Neha, Bhargava, Vani, and Ahuja, Hemant
- Published
- 2024
- Full Text
- View/download PDF
46. Nuclear receptor Rev-erbα role in fine-tuning erythropoietin gene expression
- Author
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Kumar, Sumit, Arora, Rashmi, Gupta, Shalini, Ahuja, Nancy, Bhagyaraj, Ella, Nanduri, Ravikanth, Kalra, Rashi, Khare, Asheesh Kumar, Kumawat, Saumyata, Kaushal, Vipashu, Sharma, Mahathi, and Gupta, Pawan
- Abstract
•EPO is crucial for maintaining RBC balance, and its dysregulation can cause conditions such as anemia and polycythemia.•This study reveals a new discovery that 2 NRs, Rev-erbα and RORα, act oppositely, suggesting a potential therapy for EPO-related disorders.
- Published
- 2024
- Full Text
- View/download PDF
47. The underlying causes, treatment options of gut microbiota and food habits in type 2 diabetes mellitus: a narrative review
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Adhikary, Krishnendu, Sarkar, Riya, Maity, Sriparna, Banerjee, Ipsita, Chatterjee, Prity, Bhattacharya, Koushik, Ahuja, Deepika, Sinha, Nirmalya Kumar, and Maiti, Rajkumar
- Abstract
Type 2 diabetes mellitus is a long-lasting endocrine disorder characterized by persistent hyperglycaemia, which is often triggered by an entire or relative inadequacy of insulin production or insulin resistance. As a result of resistance to insulin (IR) and an overall lack of insulin in the body, type 2 diabetes mellitus (T2DM) is a metabolic illness that is characterized by hyperglycaemia. Notably, the occurrence of vascular complications of diabetes and the advancement of IR in T2DM are accompanied by dysbiosis of the gut microbiota. Due to the difficulties in managing the disease and the dangers of multiple accompanying complications, diabetes is a chronic, progressive immune-mediated condition that plays a significant clinical and health burden on patients. The frequency and incidence of diabetes among young people have been rising worldwide. The relationship between the gut microbiota composition and the physio-pathological characteristics of T2DM proposes a novel way to monitor the condition and enhance the effectiveness of therapies. Our knowledge of the microbiota of the gut and how it affects health and illness has changed over the last 20 years. Species of the genus Eubacterium, which make up a significant portion of the core animal gut microbiome, are some of the recently discovered ‘generation’ of possibly helpful bacteria. In this article, we have focused on pathogenesis and therapeutic approaches towards T2DM, with a special reference to gut bacteria from ancient times to the present day.
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- 2024
- Full Text
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48. Agility and improvisation in Ontario’s craft breweries: Capabilities for constraints-based innovation
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Levallet, Nadege, Ahuja, Suchit, and Wood, Corey
- Abstract
ABSTRACTIn the context of most small businesses, innovativeness is critical for survival. However, small businesses often lack resources and are limited in their ability to influence external constraints. Consequently, they need to innovate in unique and often limited ways. While constraints-based innovativeness is discussed in emerging economies, we know little about how it occurs in advanced economies like Canada. This study uses a case study method in the craft brewery industry to examine different paths to constraints-based innovativeness through two capabilities, namely organizational agility and organizational improvisation capability. Results indicate an important but limited role for these capabilities for constraints-based innovativeness in the context of craft brewing, but also uncover different paths for development and evolution of innovativeness. This opens future research opportunities to study innovativeness, agility and organizational improvisation capability in small businesses facing resource constraints.
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- 2024
- Full Text
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49. Giant nanomechanical energy storage capacity in twisted single-walled carbon nanotube ropes
- Author
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Utsumi, Shigenori, Ujjain, Sanjeev Kumar, Takahashi, Satoshi, Shimodomae, Ryo, Yamaura, Tae, Okuda, Ryosuke, Kobayashi, Ryuichiro, Takahashi, Oga, Miyazono, Satoshi, Kato, Naoki, Aburamoto, Keiichi, Hosoi, Yuta, Ahuja, Preety, Furuse, Ayumi, Kawamata, Yuma, Otsuka, Hayato, Fujisawa, Kazunori, Hayashi, Takuya, Tománek, David, and Kaneko, Katsumi
- Abstract
A sustainable society requires high-energy storage devices characterized by lightness, compactness, a long life and superior safety, surpassing current battery and supercapacitor technologies. Single-walled carbon nanotubes (SWCNTs), which typically exhibit great toughness, have emerged as promising candidates for innovative energy storage solutions. Here we produced SWCNT ropes wrapped in thermoplastic polyurethane elastomers, and demonstrated experimentally that a twisted rope composed of these SWCNTs possesses the remarkable ability to reversibly store nanomechanical energy. Notably, the gravimetric energy density of these twisted ropes reaches up to 2.1 MJ kg−1, exceeding the energy storage capacity of mechanical steel springs by over four orders of magnitude and surpassing advanced lithium-ion batteries by a factor of three. In contrast to chemical and electrochemical energy carriers, the nanomechanical energy stored in a twisted SWCNT rope is safe even in hostile environments. This energy does not deplete over time and is accessible at temperatures ranging from −60 to +100 °C.
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- 2024
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50. Zirconium Dichalcogenide-Based van der Waals Heterostructures for Efficient Schottky Barrier Solar Cells.
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Tatikondewar, Laxman, Chakraborty, Sudip, Ahuja, Rajeev, and Kshirsagar, Anjali
- Published
- 2024
- Full Text
- View/download PDF
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