1
|
Inayat F, Saeed A, Taj S, Kulsoom S, Rehman AU, Amin MK, Akhtar Z, Haq ZU. Acute Ischemic Colitis Associated With Oral Phenylephrine Use: A Rare Adverse Effect of a Common Over-the-Counter Drug. Am J Ther 2024; 31:e320-e322. [PMID: 37155143 DOI: 10.1097/mjt.0000000000001635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Affiliation(s)
| | | | - Sobaan Taj
- Jersey Shore University Medical Center, Neptune, NJ
| | | | | | | | | | | |
Collapse
|
2
|
Ali H, Inayat F, Dhillon R, Patel P, Afzal A, Wilkinson C, Rehman AU, Anwar MS, Nawaz G, Chaudhry A, Awan JR, Afzal MS, Samanta J, Adler DG, Mohan BP. Predicting the risk of early intensive care unit admission for patients hospitalized with acute pancreatitis using supervised machine learning. Proc AMIA Symp 2024; 37:437-447. [PMID: 38628340 PMCID: PMC11018057 DOI: 10.1080/08998280.2024.2326371] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 02/19/2024] [Indexed: 04/19/2024] Open
Abstract
Background Acute pancreatitis (AP) is a complex and life-threatening disease. Early recognition of factors predicting morbidity and mortality is crucial. We aimed to develop and validate a pragmatic model to predict the individualized risk of early intensive care unit (ICU) admission for patients with AP. Methods The 2019 Nationwide Readmission Database was used to identify patients hospitalized with a primary diagnosis of AP without ICU admission. A matched comparison cohort of AP patients with ICU admission within 7 days of hospitalization was identified from the National Inpatient Sample after 1:N propensity score matching. The least absolute shrinkage and selection operator (LASSO) regression was used to select predictors and develop an ICU acute pancreatitis risk (IAPR) score validated by 10-fold cross-validation. Results A total of 1513 patients hospitalized for AP were included. The median age was 50.0 years (interquartile range: 39.0-63.0). The three predictors that were selected included hypoxia (area under the curve [AUC] 0.78), acute kidney injury (AUC 0.72), and cardiac arrhythmia (AUC 0.61). These variables were used to develop a nomogram that displayed excellent discrimination (AUC 0.874) (bootstrap bias-corrected 95% confidence interval 0.824-0.876). There was no evidence of miscalibration (test statistic = 2.88; P = 0.09). For high-risk patients (total score >6 points), the sensitivity was 68.94% and the specificity was 92.66%. Conclusions This supervised machine learning-based model can help recognize high-risk AP hospitalizations. Clinicians may use the IAPR score to identify patients with AP at high risk of ICU admission within the first week of hospitalization.
Collapse
Affiliation(s)
- Hassam Ali
- Department of Gastroenterology, East Carolina University Brody School of Medicine, Greenville, North Carolina, USA
| | - Faisal Inayat
- Department of Internal Medicine, Allama Iqbal Medical College, Lahore, Punjab, Pakistan
| | - Rubaid Dhillon
- Department of Gastroenterology, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Pratik Patel
- Department of Gastroenterology, Mather Hospital and Hofstra University Zucker School of Medicine, Port Jefferson, New York, USA
| | - Arslan Afzal
- Department of Gastroenterology, East Carolina University Brody School of Medicine, Greenville, North Carolina, USA
| | - Christin Wilkinson
- Department of Gastroenterology, East Carolina University Brody School of Medicine, Greenville, North Carolina, USA
| | - Attiq Ur Rehman
- Department of Hepatology, Geisinger Wyoming Valley Medical Center, Wilkes-Barre, Pennsylvania, USA
| | - Muhammad Sajeel Anwar
- Department of Internal Medicine, UHS Wilson Medical Center, Johnson City, New York, USA
| | - Gul Nawaz
- Department of Internal Medicine, Allama Iqbal Medical College, Lahore, Punjab, Pakistan
| | | | - Junaid Rasul Awan
- Department of Internal Medicine, Allama Iqbal Medical College, Lahore, Punjab, Pakistan
| | - Muhammad Sohaib Afzal
- Department of Internal Medicine, Louisiana State University Health, Shreveport, Louisiana, USA
| | - Jayanta Samanta
- Department of Gastroenterology, Post Graduate Institute of Medical Research and Education, Chandigarh, Punjab, India
| | - Douglas G. Adler
- Center for Advanced Therapeutic Endoscopy, Porter Adventist Hospital, Centura Health, Denver, Colorado, USA
| | - Babu P. Mohan
- Department of Gastroenterology and Hepatology, University of Utah School of Medicine, Salt Lake City, Utah, USA
| |
Collapse
|
3
|
Aehle M, Alme J, Gábor Barnaföldi G, Blühdorn J, Bodova T, Borshchov V, van den Brink A, Eikeland V, Feofilov G, Garth C, Gauger NR, Grøttvik O, Helstrup H, Igolkin S, Keidel R, Kobdaj C, Kortus T, Kusch L, Leonhardt V, Mehendale S, Ningappa Mulawade R, Harald Odland O, O'Neill G, Papp G, Peitzmann T, Pettersen HES, Piersimoni P, Pochampalli R, Protsenko M, Rauch M, Ur Rehman A, Richter M, Röhrich D, Sagebaum M, Santana J, Schilling A, Seco J, Songmoolnak A, Sudár Á, Tambave G, Tymchuk I, Ullaland K, Varga-Kofarago M, Volz L, Wagner B, Wendzel S, Wiebel A, Xiao R, Yang S, Zillien S. Exploration of differentiability in a proton computed tomography simulation framework. Phys Med Biol 2023; 68:244002. [PMID: 37949060 DOI: 10.1088/1361-6560/ad0bdd] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 11/10/2023] [Indexed: 11/12/2023]
Abstract
Objective.Gradient-based optimization using algorithmic derivatives can be a useful technique to improve engineering designs with respect to a computer-implemented objective function. Likewise, uncertainty quantification through computer simulations can be carried out by means of derivatives of the computer simulation. However, the effectiveness of these techniques depends on how 'well-linearizable' the software is. In this study, we assess how promising derivative information of a typical proton computed tomography (pCT) scan computer simulation is for the aforementioned applications.Approach.This study is mainly based on numerical experiments, in which we repeatedly evaluate three representative computational steps with perturbed input values. We support our observations with a review of the algorithmic steps and arithmetic operations performed by the software, using debugging techniques.Main results.The model-based iterative reconstruction (MBIR) subprocedure (at the end of the software pipeline) and the Monte Carlo (MC) simulation (at the beginning) were piecewise differentiable. However, the observed high density and magnitude of jumps was likely to preclude most meaningful uses of the derivatives. Jumps in the MBIR function arose from the discrete computation of the set of voxels intersected by a proton path, and could be reduced in magnitude by a 'fuzzy voxels' approach. The investigated jumps in the MC function arose from local changes in the control flow that affected the amount of consumed random numbers. The tracking algorithm solves an inherently non-differentiable problem.Significance.Besides the technical challenges of merely applying AD to existing software projects, the MC and MBIR codes must be adapted to compute smoother functions. For the MBIR code, we presented one possible approach for this while for the MC code, this will be subject to further research. For the tracking subprocedure, further research on surrogate models is necessary.
Collapse
Affiliation(s)
- Max Aehle
- Chair for Scientific Computing, University of Kaiserslautern-Landau, D-67663 Kaiserslautern, Germany
| | - Johan Alme
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
| | | | - Johannes Blühdorn
- Chair for Scientific Computing, University of Kaiserslautern-Landau, D-67663 Kaiserslautern, Germany
| | - Tea Bodova
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
| | | | | | - Viljar Eikeland
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
| | | | - Christoph Garth
- Scientific Visualization Lab, University of Kaiserslautern-Landau, D-67663 Kaiserslautern, Germany
| | - Nicolas R Gauger
- Chair for Scientific Computing, University of Kaiserslautern-Landau, D-67663 Kaiserslautern, Germany
| | - Ola Grøttvik
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
| | - Håvard Helstrup
- Department of Computer Science, Electrical Engineering and Mathematical Sciences, Western Norway University of Applied Sciences, NO-5020 Bergen, Norway
| | | | - Ralf Keidel
- Chair for Scientific Computing, University of Kaiserslautern-Landau, D-67663 Kaiserslautern, Germany
- Center for Technology and Transfer (ZTT), University of Applied Sciences Worms, Worms, Germany
| | - Chinorat Kobdaj
- Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, Thailand
| | - Tobias Kortus
- Center for Technology and Transfer (ZTT), University of Applied Sciences Worms, Worms, Germany
| | - Lisa Kusch
- Chair for Scientific Computing, University of Kaiserslautern-Landau, D-67663 Kaiserslautern, Germany
| | - Viktor Leonhardt
- Scientific Visualization Lab, University of Kaiserslautern-Landau, D-67663 Kaiserslautern, Germany
| | - Shruti Mehendale
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
| | - Raju Ningappa Mulawade
- Center for Technology and Transfer (ZTT), University of Applied Sciences Worms, Worms, Germany
| | - Odd Harald Odland
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
- Department of Oncology and Medical Physics, Haukeland University Hospital, NO-5021 Bergen, Norway
| | - George O'Neill
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
| | - Gábor Papp
- Institute for Physics, Eötvös Loránd University, 1/A Pázmány P. Sétány, H-1117 Budapest, Hungary
| | - Thomas Peitzmann
- Institute for Subatomic Physics, Utrecht University/Nikhef, Utrecht, Netherlands
| | | | - Pierluigi Piersimoni
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
- FSN Department, ENEA, Frascati Research Center, I-00044, Frascati, Italy
| | - Rohit Pochampalli
- Chair for Scientific Computing, University of Kaiserslautern-Landau, D-67663 Kaiserslautern, Germany
| | - Maksym Protsenko
- Research and Production Enterprise 'LTU' (RPE LTU), Kharkiv, Ukraine
| | - Max Rauch
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
| | - Attiq Ur Rehman
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
| | | | - Dieter Röhrich
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
| | - Max Sagebaum
- Chair for Scientific Computing, University of Kaiserslautern-Landau, D-67663 Kaiserslautern, Germany
| | - Joshua Santana
- Center for Technology and Transfer (ZTT), University of Applied Sciences Worms, Worms, Germany
| | - Alexander Schilling
- Center for Technology and Transfer (ZTT), University of Applied Sciences Worms, Worms, Germany
| | - Joao Seco
- Department of Biomedical Physics in Radiation Oncology, DKFZGerman Cancer Research Center, Heidelberg, Germany
- Department of Physics and Astronomy, Heidelberg University, Heidelberg, Germany
| | - Arnon Songmoolnak
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
- Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, Thailand
| | - Ákos Sudár
- Wigner Research Centre for Physics, Budapest, Hungary
| | - Ganesh Tambave
- Center for Medical and Radiation Physics (CMRP), National Institute of Science Education and Research (NISER), Bhubaneswar, India
| | - Ihor Tymchuk
- Research and Production Enterprise 'LTU' (RPE LTU), Kharkiv, Ukraine
| | - Kjetil Ullaland
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
| | | | - Lennart Volz
- Biophysics, GSI Helmholtz Center for Heavy Ion Research GmbH, Darmstadt, Germany
- Department of Medical Physics and Biomedical Engineering, University College London, London, United Kingdom
| | - Boris Wagner
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
| | - Steffen Wendzel
- Center for Technology and Transfer (ZTT), University of Applied Sciences Worms, Worms, Germany
| | - Alexander Wiebel
- Center for Technology and Transfer (ZTT), University of Applied Sciences Worms, Worms, Germany
| | - RenZheng Xiao
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
- College of Mechanical & Power Engineering, China Three Gorges University, Yichang, People's Republic of China
| | - Shiming Yang
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
| | - Sebastian Zillien
- Center for Technology and Transfer (ZTT), University of Applied Sciences Worms, Worms, Germany
| |
Collapse
|
4
|
Inayat F, Ali H, Patel P, Dhillon R, Afzal A, Rehman AU, Afzal MS, Zulfiqar L, Nawaz G, Goraya MHN, Subramanium S, Agrawal S, Satapathy SK. Association between alcohol-associated cirrhosis and inpatient complications among COVID-19 patients: A propensity-matched analysis from the United States. World J Virol 2023; 12:221-232. [PMID: 37970569 PMCID: PMC10642379 DOI: 10.5501/wjv.v12.i4.221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/02/2023] [Accepted: 08/21/2023] [Indexed: 09/19/2023] Open
Abstract
BACKGROUND Alcohol-associated cirrhosis (AC) contributes to significant liver-related mortality in the United States. It is known to cause immune dysfunction and coagulation abnormalities. Patients with comorbid conditions like AC are at risk of worse clinical outcomes from coronavirus disease 2019 (COVID-19). The specific association between AC and COVID-19 mortality remains inconclusive, given the lack of robust clinical evidence from prior studies. AIM To study the predictors of mortality and the outcomes of AC in patients hospitalized with COVID-19 in the United States. METHODS We conducted a retrospective cohort study using the National Inpatient Sample (NIS) database 2020. Patients were identified with primary COVID-19 hospitalizations based on an underlying diagnosis of AC. A matched comparison cohort of COVID-19 patients without AC was identified after 1:N propensity score matching based on baseline sociodemographic characteristics and Elixhauser comorbidities. Primary outcomes included median length of stay, median inpatient charges, and in-hospital mortality. Secondary outcomes included a prevalence of systemic complications. RESULTS A total of 1325 COVID-19 patients with AC were matched to 1135 patients without AC. There was no difference in median length of stay and hospital charges in COVID-19 patients with AC compared to non-AC (P > 0.05). There was an increased prevalence of septic shock (5.7% vs 4.1%), ventricular fibrillation/ventricular flutter (0.4% vs 0%), atrial fibrillation (13.2% vs 8.8%), atrial flutter (8.7% vs 4.4%), first-degree atrioventricular nodal block (0.8% vs 0%), upper extremity venous thromboembolism (1.5% vs 0%), and variceal bleeding (3.8% vs 0%) in the AC cohort compared to the non-AC cohort (P < 0.05). There was no difference in inpatient mortality in COVID-19 patients with non-AC compared to AC, with an odds ratio of 0.97 (95% confidence interval: 0.78-1.22, P = 0.85). Predictors of mortality included advanced age, cardiac arrhythmias, coagulopathy, protein-calorie malnutrition, fluid and electrolyte disorders, septic shock, and upper extremity venous thromboembolism. CONCLUSION AC does not increase mortality in patients hospitalized with COVID-19. There is an increased association between inpatient complications among COVID-19 patients with AC compared to non-AC.
Collapse
Affiliation(s)
- Faisal Inayat
- Department of Internal Medicine, Allama Iqbal Medical College, Lahore 54550, Punjab, Pakistan
| | - Hassam Ali
- Department of Internal Medicine, East Carolina University Brody School of Medicine, Greenville, NC 27834, United States
| | - Pratik Patel
- Department of Gastroenterology, Mather Hospital and Zucker School of Medicine at Hofstra University, Port Jefferson, NY 11777, United States
| | - Rubaid Dhillon
- Department of Gastroenterology, Cleveland Clinic Foundation, Cleveland, OH 44195, United States
| | - Arslan Afzal
- Department of Internal Medicine, East Carolina University Brody School of Medicine, Greenville, NC 27834, United States
| | - Attiq Ur Rehman
- Department of Hepatology, Mercy Medical Center, Baltimore, MD 21202, United States
| | - Muhammad Sohaib Afzal
- Department of Internal Medicine, Louisiana State University Health, Shreveport, LA 71103, United States
| | - Laraib Zulfiqar
- Department of Internal Medicine, Quaid-e-Azam Medical College, Bahawalpur 63100, Punjab, Pakistan
| | - Gul Nawaz
- Department of Internal Medicine, Allama Iqbal Medical College, Lahore 54550, Punjab, Pakistan
| | | | - Subanandhini Subramanium
- Department of Internal Medicine, East Carolina University Brody School of Medicine, Greenville, NC 27834, United States
| | - Saurabh Agrawal
- Department of Hepatology, Tampa General Medical Group and University of South Florida, Tampa, FL 33606, United States
| | - Sanjaya K Satapathy
- Department of Hepatology, North Shore University Hospital and Zucker School of Medicine at Hofstra University, Manhasset, NY 11030, United States
| |
Collapse
|
5
|
Schilling A, Aehle M, Alme J, Barnaföldi GG, Bodova T, Borshchov V, van den Brink A, Eikeland V, Feofilov G, Garth C, Gauger NR, Grøttvik O, Helstrup H, Igolkin S, Keidel R, Kobdaj C, Kortus T, Leonhardt V, Mehendale S, Ningappa Mulawade R, Harald Odland O, O'Neill G, Papp G, Peitzmann T, Pettersen HES, Piersimoni P, Protsenko M, Rauch M, Ur Rehman A, Richter M, Röhrich D, Santana J, Seco J, Songmoolnak A, Sudár Á, Tambave G, Tymchuk I, Ullaland K, Varga-Kofarago M, Volz L, Wagner B, Wendzel S, Wiebel A, Xiao R, Yang S, Zillien S. Uncertainty-aware spot rejection rate as quality metric for proton therapy using a digital tracking calorimeter. Phys Med Biol 2023; 68:194001. [PMID: 37652034 DOI: 10.1088/1361-6560/acf5c2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 08/31/2023] [Indexed: 09/02/2023]
Abstract
Objective.Proton therapy is highly sensitive to range uncertainties due to the nature of the dose deposition of charged particles. To ensure treatment quality, range verification methods can be used to verify that the individual spots in a pencil beam scanning treatment fraction match the treatment plan. This study introduces a novel metric for proton therapy quality control based on uncertainties in range verification of individual spots.Approach.We employ uncertainty-aware deep neural networks to predict the Bragg peak depth in an anthropomorphic phantom based on secondary charged particle detection in a silicon pixel telescope designed for proton computed tomography. The subsequently predicted Bragg peak positions, along with their uncertainties, are compared to the treatment plan, rejecting spots which are predicted to be outside the 95% confidence interval. The such-produced spot rejection rate presents a metric for the quality of the treatment fraction.Main results.The introduced spot rejection rate metric is shown to be well-defined for range predictors with well-calibrated uncertainties. Using this method, treatment errors in the form of lateral shifts can be detected down to 1 mm after around 1400 treated spots with spot intensities of 1 × 107protons. The range verification model used in this metric predicts the Bragg peak depth to a mean absolute error of 1.107 ± 0.015 mm.Significance.Uncertainty-aware machine learning has potential applications in proton therapy quality control. This work presents the foundation for future developments in this area.
Collapse
Affiliation(s)
- Alexander Schilling
- Center for Technology and Transfer (ZTT), University of Applied Sciences Worms, D-67549 Worms, Germany
- Chair for Scientific Computing, University of Kaiserslautern-Landau, D-67663 Kaiserslautern, Germany
| | - Max Aehle
- Chair for Scientific Computing, University of Kaiserslautern-Landau, D-67663 Kaiserslautern, Germany
| | - Johan Alme
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
| | | | - Tea Bodova
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
| | | | | | - Viljar Eikeland
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
| | | | - Christoph Garth
- Scientific Visualization Lab, University of Kaiserslautern-Landau, D-67663 Kaiserslautern, Germany
| | - Nicolas R Gauger
- Chair for Scientific Computing, University of Kaiserslautern-Landau, D-67663 Kaiserslautern, Germany
| | - Ola Grøttvik
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
| | - Håvard Helstrup
- Department of Computer Science, Electrical Engineering and Mathematical Sciences, Western Norway University of Applied Sciences, NO-5020 Bergen, Norway
| | | | - Ralf Keidel
- Center for Technology and Transfer (ZTT), University of Applied Sciences Worms, D-67549 Worms, Germany
- Chair for Scientific Computing, University of Kaiserslautern-Landau, D-67663 Kaiserslautern, Germany
| | - Chinorat Kobdaj
- Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, Thailand
| | - Tobias Kortus
- Center for Technology and Transfer (ZTT), University of Applied Sciences Worms, D-67549 Worms, Germany
| | - Viktor Leonhardt
- Scientific Visualization Lab, University of Kaiserslautern-Landau, D-67663 Kaiserslautern, Germany
| | - Shruti Mehendale
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
| | - Raju Ningappa Mulawade
- Center for Technology and Transfer (ZTT), University of Applied Sciences Worms, D-67549 Worms, Germany
| | - Odd Harald Odland
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
- Department of Oncology and Medical Physics, Haukeland University Hospital, NO-5021 Bergen, Norway
| | - George O'Neill
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
| | - Gábor Papp
- Institute for Physics, Eötvös Loránd University, 1/A Pázmány P. Sétány, H-1117 Budapest, Hungary
| | - Thomas Peitzmann
- Institute for Subatomic Physics, Utrecht University/Nikhef, Utrecht, Netherlands
| | | | - Pierluigi Piersimoni
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
- UniCamillus-Saint Camillus International University of Health Sciences, Rome, Italy
| | - Maksym Protsenko
- Research and Production Enterprise 'LTU' (RPELTU), Kharkiv, Ukraine
| | - Max Rauch
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
| | - Attiq Ur Rehman
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
| | - Matthias Richter
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
| | - Dieter Röhrich
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
| | - Joshua Santana
- Center for Technology and Transfer (ZTT), University of Applied Sciences Worms, D-67549 Worms, Germany
| | - Joao Seco
- Department of Biomedical Physics in Radiation Oncology, DKFZ-German Cancer Research Center, Heidelberg, Germany
- Department of Physics and Astronomy, Heidelberg University, Heidelberg, Germany
| | - Arnon Songmoolnak
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
- Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, Thailand
| | - Ákos Sudár
- Wigner Research Centre for Physics, Budapest, Hungary
- Budapest University of Technology and Economics, Budapest, Hungary
| | - Ganesh Tambave
- Center for Medical and Radiation Physics (CMRP), National Institute of Science Education and Research (NISER), Bhubaneswar, India
| | - Ihor Tymchuk
- Research and Production Enterprise 'LTU' (RPELTU), Kharkiv, Ukraine
| | - Kjetil Ullaland
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
| | | | - Lennart Volz
- Biophysics, GSI Helmholtz Center for Heavy Ion Research GmbH, Darmstadt, Germany
- Department of Medical Physics and Biomedical Engineering, University College London, London, United Kingdom
| | - Boris Wagner
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
| | - Steffen Wendzel
- Center for Technology and Transfer (ZTT), University of Applied Sciences Worms, D-67549 Worms, Germany
| | - Alexander Wiebel
- Center for Technology and Transfer (ZTT), University of Applied Sciences Worms, D-67549 Worms, Germany
| | - RenZheng Xiao
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
- College of Mechanical & Power Engineering, China Three Gorges University, Yichang, People's Republic of China
| | - Shiming Yang
- Department of Physics and Technology, University of Bergen, NO-5007 Bergen, Norway
| | - Sebastian Zillien
- Center for Technology and Transfer (ZTT), University of Applied Sciences Worms, D-67549 Worms, Germany
| |
Collapse
|
6
|
Rehman AU, Jiao W, Sun J, Sohaib M, Jiang Y, Shahzadi M, Khan MI. Efficient Fault Detection of Rotor Minor Inter-Turn Short Circuit in Induction Machines Using Wavelet Transform and Empirical Mode Decomposition. Sensors (Basel) 2023; 23:7109. [PMID: 37631644 PMCID: PMC10458626 DOI: 10.3390/s23167109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 07/30/2023] [Accepted: 08/03/2023] [Indexed: 08/27/2023]
Abstract
This paper introduces a novel approach for detecting inter-turn short-circuit faults in rotor windings using wavelet transformation and empirical mode decomposition. A MATLAB/Simulink model is developed based on electrical parameters to simulate the inter-turn short circuit by adding a resistor parallel to phase "a" of the rotor. The resulting high current in the new phase indicates the presence of the short circuit. By measuring the rotor and stator three-phase currents, the fault can be detected as the currents exhibit asymmetric behavior. Fluctuations in the electromagnetic torque also occur during the fault. The wavelet transform is applied to the rotor current, revealing an effective analysis of sideband frequency components. Specifically, changes in amplitude and frequency, particularly in d7 and a7, indicate the presence of harmonics generated by the inter-turn short circuit. The simulation results demonstrate the effectiveness of wavelet transformation in analyzing these frequency components. Additionally, this study explores the use of empirical mode decomposition to detect faults in their early stages, observing substantial changes in the instantaneous amplitudes of the first three intrinsic mode functions during fault onset. The proposed technique is straightforward and reliable, making it suitable for application in wind turbines with simple electrical inputs.
Collapse
Affiliation(s)
- Attiq Ur Rehman
- School of Computer Science and Technology, Zhejiang Normal University, Jinhua 321004, China; (A.U.R.); (M.S.)
- Zhejiang Institute of Photoelectronics & Zhejiang Institute for Advanced Light Source, Zhejiang Normal University, Jinhua 321004, China
| | - Weidong Jiao
- Key Laboratory of Intelligent Operation and Maintenance Technology & Equipment for Urban Rail Transit of Zhejiang Province, Jinhua 321004, China;
- School of Engineering, Zhejiang Normal University, Jinhua 321004, China
| | - Jianfeng Sun
- Key Laboratory of Intelligent Operation and Maintenance Technology & Equipment for Urban Rail Transit of Zhejiang Province, Jinhua 321004, China;
- School of Engineering, Zhejiang Normal University, Jinhua 321004, China
| | - Muhammad Sohaib
- School of Computer Science and Technology, Zhejiang Normal University, Jinhua 321004, China; (A.U.R.); (M.S.)
- Zhejiang Institute of Photoelectronics & Zhejiang Institute for Advanced Light Source, Zhejiang Normal University, Jinhua 321004, China
| | - Yonghua Jiang
- Xingzhi College, Zhejiang Normal University, Lanxi 321100, China
| | - Mahnoor Shahzadi
- School of Information and Communication Engineering, University of Electronic Science and Technology, Chengdu 610054, China;
| | - Muhammad Ijaz Khan
- Institute of Mechanical & Manufacturing Engineering, Khwaja Fareed University of Engineering & Information Technology, Rahim Yar Khan 64200, Pakistan;
| |
Collapse
|
7
|
Patel P, Inayat F, Ali H, Afzal A, Taj S, Rehman AU, Hussain N, Ishtiaq R, Nawaz G, Afzal MS, Fatakhova K, Satapathy SK. Association of nonalcoholic fatty liver disease with acute cholangitis: a nationwide propensity-matched analysis from the United States. Proc AMIA Symp 2023; 36:600-607. [PMID: 37614865 PMCID: PMC10443993 DOI: 10.1080/08998280.2023.2231721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 06/18/2023] [Accepted: 06/24/2023] [Indexed: 08/25/2023] Open
Abstract
Background Nonalcoholic fatty liver disease (NAFLD) has previously been linked to several disease states with an impact on patient outcomes. However, clinical evidence on the association between NAFLD and acute cholangitis (AC) remains scarce. We aimed to evaluate the potential association between NAFLD and AC. Methods We conducted a retrospective cohort study using the US National Inpatient Sample database from 2016 to 2019 to analyze primary AC hospitalizations with NAFLD compared to non-NAFLD in a 1:1 propensity-matched population. Results A total of 1550 AC patients with NAFLD were matched to 1550 AC patients without NAFLD. NAFLD had a higher association with AC when compared to patients without NAFLD, with an odds ratio of 2.33 (95% CI [1.81-3.0], P < 0.001). The length of stay was higher in NAFLD than in non-NAFLD (4 vs 3 days, P < 0.001). The median inpatient charges in NAFLD were also higher than in the non-NAFLD cohort ($36,182 vs $35,244, P < 0.001). Inpatient mortality was higher in NAFLD compared to non-NAFLD (1.6% vs 0%, P < 0.001). There was an increased prevalence of portal vein thrombosis (3.2% vs 0%), acute kidney injury (24.2% vs 17.7%), sepsis (3.2% vs 1.6%), mechanical ventilation (3.2% vs 0%), and percutaneous cholecystostomy tube insertion (3.2% vs 1.6%) in NAFLD compared to non-NAFLD (P < 0.05). NAFLD also had a higher association with acute cholecystitis, with an odds ratio of 3.70 (95% CI [3.19-4.29], P < 0.001). Conclusions This study showed an association between NALFD and AC, resulting in increased length of stay, hospital charges, and inpatient mortality. Underlying NAFLD also increases acute complications of AC.
Collapse
Affiliation(s)
- Pratik Patel
- Mather Hospital and Hofstra University Zucker School of Medicine, Port Jefferson, New York, USA
| | - Faisal Inayat
- Allama Iqbal Medical College, Lahore, Punjab, Pakistan
| | - Hassam Ali
- East Carolina University Brody School of Medicine, Greenville, North Carolina, USA
| | - Arslan Afzal
- Woodhull Medical Center, Brooklyn, New York, USA
| | - Sobaan Taj
- Jersey Shore University Medical Center, Neptune, New Jersey, USA
| | | | | | - Rizwan Ishtiaq
- Saint Francis Hospital and Medical Center, Hartford, Connecticut, USA
| | - Gul Nawaz
- Allama Iqbal Medical College, Lahore, Punjab, Pakistan
| | | | - Karina Fatakhova
- Mather Hospital and Hofstra University Zucker School of Medicine, Port Jefferson, New York, USA
| | - Sanjaya K. Satapathy
- North Shore University Hospital and Hofstra University Zucker School of Medicine, Manhasset, New York, USA
| |
Collapse
|
8
|
Ali H, Inayat F, Malik TF, Patel P, Nawaz G, Taj S, Rehman AU, Afzal A, Ishtiaq R, Afzal MS, Advani R, Watson RR. Operator-specific outcomes in endoscopic sleeve gastroplasty: a propensity-matched analysis of the US population using a multicenter database. Proc AMIA Symp 2023; 36:592-599. [PMID: 37614858 PMCID: PMC10443959 DOI: 10.1080/08998280.2023.2228180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 06/06/2023] [Accepted: 06/17/2023] [Indexed: 08/25/2023] Open
Abstract
Background Endoscopic sleeve gastroplasty (ESG) has emerged as an effective endoscopic bariatric procedure over the past decade. Data comparing short-term outcomes of ESG based on operator specialty is scarce. We aimed to assess the impact of operator specialization on patient outcomes using a large bariatric-specific database. Methods We identified a retrospective cohort of patients who underwent ESG by gastroenterologists using the Metabolic and Bariatric Surgery Accreditation Quality Improvement Program database (2020-2021). A matched comparison cohort of patients who underwent ESG by surgeons was identified and underwent 1:1 propensity score matching based on age, race, gender, American Society of Anesthesiologists physical status classification, and preoperative body mass index. Results After matching, 154 patients were included in the final analysis. Of these, 77 patients underwent ESG by surgeons and 77 by gastroenterologists. In the matched cohort, the median operation time was lower in ESG by surgeons compared to gastroenterologists (P < 0.001). The median percent body mass index decrease was higher in the gastroenterologist cohort compared to the surgeon cohort (4.9% vs 3.8%, P = 0.04). The median percent weight loss after ESG was 4.8% in the surgeon cohort and 5.9% in the gastroenterologist cohort (P = 0.09). There was no statistically significant difference in postoperative emergency department visits (P = 0.65), reoperations (P = 0.15), or reinterventions within 30 days (P = 0.87) between the cohorts. There was no difference in major adverse effects between the groups (0% each). Conclusions Operator choice does not affect ESG-related adverse events or 30-day outcomes in patients undergoing ESG.
Collapse
Affiliation(s)
- Hassam Ali
- East Carolina University Brody School of Medicine, Greenville, North Carolina, USA
| | | | - Talia F. Malik
- Chicago Medical School at Rosalind Franklin University of Medicine and Science, North Chicago, Illinois, USA
| | - Pratik Patel
- Mather Hospital and Hofstra University Zucker School of Medicine, Port Jefferson, New York, USA
| | - Gul Nawaz
- Allama Iqbal Medical College, Lahore, Pakistan
| | - Sobaan Taj
- Jersey Shore University Medical Center, Neptune, New Jersey, USA
| | | | - Arslan Afzal
- Woodhull Medical Center, Brooklyn, New York, USA
| | - Rizwan Ishtiaq
- Saint Francis Hospital and Medical Center, Hartford, Connecticut, USA
| | | | - Rashmi Advani
- Cedars-Sinai Medical Center, Los Angeles, California, USA
| | | |
Collapse
|
9
|
Rasool A, Basha B, Elmushyakhi A, Hossain I, Rehman AU, Ans M. Tuning the optoelectronic properties of acridine-triphenylamine (ACR-TPA) based novel hole transporting material for high efficiency perovskite and organic solar cell. J Mol Graph Model 2023; 123:108526. [PMID: 37263156 DOI: 10.1016/j.jmgm.2023.108526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 05/11/2023] [Accepted: 05/12/2023] [Indexed: 06/03/2023]
Abstract
In this research, five distinct small donor molecules (designated as ACR-TPA-X1, ACR-TPA-X2, ACR-TPA-X3, ACR-TPA-X4, ACR-TPA-X5) are constructed by replacing the methoxy groups on both sides of the model molecule (ACR-TPA-R) with thiophene bridged acceptor moieties. We have used the B3LYP/6-31G (d,p) model for our computational studies. Our model molecule's morphological alteration has resulted in a lowered Eg of 1.77-2.51 eV as compared to model (ACR-TPA-R=3.84 eV). ACR-TPA-X2 investigated the λmax at 776 nm. ACR-TPA-X4 was found to be most miscible with dichloromethane (DCM). The greatest VOC(1.21 eV) was observed in ACR-TPA-X1. Among all of the variants, ACR-TPA-X1 had the highest PCE (23.42%). It was found that ACR-TPA-X4 had the highest electron mobility (0.00370 eV) and ACR-TPA-X5 had the highest hole mobility (0.00324 eV) of all the materials examined. The findings prove the worth of the methods used, paving the way for the development of effective small donors for OSCs and HTMs for PSCs.
Collapse
Affiliation(s)
- Alvina Rasool
- Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan
| | - Beriham Basha
- Department of Physics, College of Sciences, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia
| | - Abraham Elmushyakhi
- Department of Mechanical Engineering, College of Engineering, Northern Border University, Arar, Saudi Arabia
| | - Ismail Hossain
- School of Natural Sciences and Mathematics, Ural Federal University, Yekaterinburg, 620000, Russia
| | - Attiq Ur Rehman
- Department of Physics, University of Agriculture, Faisalabad, 38000, Pakistan
| | - Muhammad Ans
- Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan.
| |
Collapse
|
10
|
Fatakhova K, Patel P, Inayat F, Dhillon R, Ali H, Taj S, Nawaz G, Afzal A, Rehman AU, Afzal MS, Khan R, Ishtiaq R, Jones L, Rajapakse R. Trends in hospital admissions and mortality among inflammatory bowel disease patients with substance use disorder: a 10-year United States nationwide analysis. Proc AMIA Symp 2023; 36:427-433. [PMID: 37334096 PMCID: PMC10269429 DOI: 10.1080/08998280.2023.2204535] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 03/30/2023] [Accepted: 04/04/2023] [Indexed: 06/20/2023] Open
Abstract
Background Patients with inflammatory bowel disease (IBD) and substance use disorder (SUD) may have worse clinical outcomes. However, data specific to the hospital admission and mortality rates among IBD patients with SUD are scarce. Our objective was to assess trends in admission, healthcare expenses, and mortality for IBD patients with SUD. Methods We conducted a retrospective study using the National Inpatient Sample database to analyze SUD (alcohol, opioids, cocaine, and cannabis) among IBD hospitalizations from 2009 to 2019. Results A total of 132,894 hospitalizations for IBD had a secondary diagnosis of SUD. Of these patients, 75,172 (57%) were men and 57,696 (43%) were women. The IBD-SUD cohort had a longer length of stay than the non-SUD cohort (P < 0.001). The mean inpatient charges for IBD hospitalizations with SUD increased from $48,699 ± $1374 in 2009 to $62,672 ± $1528 in 2019 (P < 0.001). We found a 159.5% increase in IBD hospitalizations with SUD. The hospitalization rate increased from 3492 per 100,000 IBD hospitalizations in 2009 to 9063 per 100,000 in 2019 (P < 0.001). In-hospital mortality for IBD hospitalizations with SUD increased by 129.6% (from 250 deaths per 100,000 IBD hospitalizations in 2009 to 574 deaths per 100,000 IBD hospitalizations in 2019) (P < 0.001). Conclusions Over the last decade, there has been a rise in IBD hospitalizations with SUD. This has resulted in a longer length of stay, higher inpatient charges, and higher mortality rates. Identifying IBD patients potentially at risk for SUD by screening for anxiety, depression, pain, or other factors has become crucial.
Collapse
Affiliation(s)
- Karina Fatakhova
- Department of Gastroenterology, Mather Hospital and Hofstra University Zucker School of Medicine, Port Jefferson, New York
| | - Pratik Patel
- Department of Gastroenterology, Mather Hospital and Hofstra University Zucker School of Medicine, Port Jefferson, New York
| | - Faisal Inayat
- Department of Medicine, Allama Iqbal Medical College, Lahore, Punjab, Pakistan
| | - Rubaid Dhillon
- Department of Gastroenterology, Cleveland Clinic Foundation, Cleveland, Ohio
| | - Hassam Ali
- Department of Internal Medicine, East Carolina University Brody School of Medicine, Greenville, North Carolina
| | - Sobaan Taj
- Department of Internal Medicine, Hackensack Meridian Jersey Shore University Medical Center, Neptune, New Jersey
| | - Gul Nawaz
- Department of Internal Medicine, Marshfield Clinic Health System, Marshfield, Wisconsin
| | - Arslan Afzal
- Department of Internal Medicine, Woodhull Medical Center, Brooklyn, New York
| | - Attiq Ur Rehman
- Department of Hepatology, Mercy Medical Center, Baltimore, Maryland
| | | | - Rafeh Khan
- Department of Internal Medicine, Quaid-e-Azam Medical College, Bahawalpur, Punjab, Pakistan
| | - Rizwan Ishtiaq
- Department of Internal Medicine, Saint Francis Hospital and Medical Center, Hartford, Connecticut
| | - Lindsey Jones
- Department of Internal Medicine, Mather Hospital and Hofstra University Zucker School of Medicine, Port Jefferson, New York
| | - Ramona Rajapakse
- Department of Gastroenterology, Mather Hospital and Hofstra University Zucker School of Medicine, Port Jefferson, New York
| |
Collapse
|
11
|
Shah AH, Abideen ZU, Maqsood S, Rashid F, Ullah R, Rehman AU, Dildar M, Ahmad M, Ullah K, Rafi MN, Teng F. Porous Cu-based metal organic framework (Cu-MOF) for highly selective adsorption of organic pollutants. J SOLID STATE CHEM 2023. [DOI: 10.1016/j.jssc.2023.123935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
|
12
|
Rehman AU, Khan LU, de Brito HF, Khan ZU, Khan AM. Surfactant-based synthesis of optically active colloidal GdF3:Ce3+(5%), Eu3+(x%) and GdF3:Ce3+(5%), Eu3+(5%)/SiO2 phosphor nanocomposites. Appl Nanosci 2022. [DOI: 10.1007/s13204-022-02473-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
13
|
Pettersen HES, Aehle M, Alme J, Barnaföldi GG, Borshchov V, van den Brink A, Chaar M, Eikeland V, Feofilov G, Garth C, Gauger NR, Genov G, Grøttvik O, Helstrup H, Igolkin S, Keidel R, Kobdaj C, Kortus T, Leonhardt V, Mehendale S, Mulawade RN, Odland OH, Papp G, Peitzmann T, Piersimoni P, Protsenko M, Rehman AU, Richter M, Santana J, Schilling A, Seco J, Songmoolnak A, Sølie JR, Tambave G, Tymchuk I, Ullaland K, Varga-Kofarago M, Volz L, Wagner B, Wendzel S, Wiebel A, Xiao R, Yang S, Yokoyama H, Zillien S, Röhrich D. Investigating particle track topology for range telescopes in particle radiography using convolutional neural networks. Acta Oncol 2021; 60:1413-1418. [PMID: 34259117 DOI: 10.1080/0284186x.2021.1949037] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
BACKGROUND Proton computed tomography (pCT) and radiography (pRad) are proposed modalities for improved treatment plan accuracy and in situ treatment validation in proton therapy. The pCT system of the Bergen pCT collaboration is able to handle very high particle intensities by means of track reconstruction. However, incorrectly reconstructed and secondary tracks degrade the image quality. We have investigated whether a convolutional neural network (CNN)-based filter is able to improve the image quality. MATERIAL AND METHODS The CNN was trained by simulation and reconstruction of tens of millions of proton and helium tracks. The CNN filter was then compared to simple energy loss threshold methods using the Area Under the Receiver Operating Characteristics curve (AUROC), and by comparing the image quality and Water Equivalent Path Length (WEPL) error of proton and helium radiographs filtered with the same methods. RESULTS The CNN method led to a considerable improvement of the AUROC, from 74.3% to 97.5% with protons and from 94.2% to 99.5% with helium. The CNN filtering reduced the WEPL error in the helium radiograph from 1.03 mm to 0.93 mm while no improvement was seen in the CNN filtered pRads. CONCLUSION The CNN improved the filtering of proton and helium tracks. Only in the helium radiograph did this lead to improved image quality.
Collapse
Affiliation(s)
| | - Max Aehle
- Chair for Scientific Computing, Technische Universität Kaiserslautern, Kaiserslautern, Germany
| | - Johan Alme
- Department of Physics and Technology, University of Bergen, Bergen, Norway
| | | | | | | | - Mamdouh Chaar
- Department of Physics and Technology, University of Bergen, Bergen, Norway
| | - Viljar Eikeland
- Department of Physics and Technology, University of Bergen, Bergen, Norway
| | - Grigory Feofilov
- Department of High Energy and Elementary Particles Physics, St. Petersburg University, St. Petersburg, Russia
| | - Christoph Garth
- Scientific Visualization Lab, Technische Universität Kaiserslautern, Kaiserslautern, Germany
| | - Nicolas R. Gauger
- Chair for Scientific Computing, Technische Universität Kaiserslautern, Kaiserslautern, Germany
| | - Georgi Genov
- Department of Physics and Technology, University of Bergen, Bergen, Norway
| | - Ola Grøttvik
- Department of Physics and Technology, University of Bergen, Bergen, Norway
| | - Håvard Helstrup
- Department of Computer Science, Electrical Engineering and Mathematical Sciences, Western Norway University of Applied Sciences, Bergen, Norway
| | - Sergey Igolkin
- Department of High Energy and Elementary Particles Physics, St. Petersburg University, St. Petersburg, Russia
| | - Ralf Keidel
- Center for Technology and Transfer (ZTT), University of Applied Sciences Worms, Worms, Germany
| | - Chinorat Kobdaj
- Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, Thailand
| | - Tobias Kortus
- Center for Technology and Transfer (ZTT), University of Applied Sciences Worms, Worms, Germany
| | - Viktor Leonhardt
- Scientific Visualization Lab, Technische Universität Kaiserslautern, Kaiserslautern, Germany
| | - Shruti Mehendale
- Department of Physics and Technology, University of Bergen, Bergen, Norway
| | - Raju Ningappa Mulawade
- Center for Technology and Transfer (ZTT), University of Applied Sciences Worms, Worms, Germany
| | - Odd Harald Odland
- Department of Oncology and Medical Physics, Haukeland University Hospital, Bergen, Norway
- Department of Physics and Technology, University of Bergen, Bergen, Norway
| | - Gábor Papp
- Institute for Physics, Eötvös Loránd University, Budapest, Hungary
| | - Thomas Peitzmann
- Institute for Subatomic Physics, Utrecht University/Nikhef, Utrecht, Netherlands
| | | | - Maksym Protsenko
- Research and Production Enterprise “LTU” (RPE LTU), Kharkiv, Ukraine
| | - Attiq Ur Rehman
- Department of Physics and Technology, University of Bergen, Bergen, Norway
| | | | - Joshua Santana
- Center for Technology and Transfer (ZTT), University of Applied Sciences Worms, Worms, Germany
| | - Alexander Schilling
- Center for Technology and Transfer (ZTT), University of Applied Sciences Worms, Worms, Germany
| | - Joao Seco
- Department of Biomedical Physics in Radiation Oncology, DKFZ-German Cancer Research Center, Heidelberg, Germany
- Department of Physics and Astronomy, Heidelberg University, Heidelberg, Germany
| | - Arnon Songmoolnak
- Department of Physics and Technology, University of Bergen, Bergen, Norway
- Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, Thailand
| | - Jarle Rambo Sølie
- Department of Diagnostic Physics, Division of Radiology and Nuclear Medicine, Oslo University Hospital, Oslo, Norway
| | - Ganesh Tambave
- Department of Physics and Technology, University of Bergen, Bergen, Norway
| | - Ihor Tymchuk
- Research and Production Enterprise “LTU” (RPE LTU), Kharkiv, Ukraine
| | - Kjetil Ullaland
- Department of Physics and Technology, University of Bergen, Bergen, Norway
| | | | - Lennart Volz
- Department of Biophysics, GSI Helmholtz Center for Heavy Ion Research GmbH, Darmstadt, Germany
- Department of Medical Physics and Biomedical Engineering, University College London, London, UK
| | - Boris Wagner
- Department of Physics and Technology, University of Bergen, Bergen, Norway
| | - Steffen Wendzel
- Center for Technology and Transfer (ZTT), University of Applied Sciences Worms, Worms, Germany
| | - Alexander Wiebel
- Center for Technology and Transfer (ZTT), University of Applied Sciences Worms, Worms, Germany
| | - RenZheng Xiao
- Department of Physics and Technology, University of Bergen, Bergen, Norway
- College of Mechanical & Power Engineering, China Three Gorges University, Yichang, People’s Republic of China
| | - Shiming Yang
- Department of Physics and Technology, University of Bergen, Bergen, Norway
| | - Hiroki Yokoyama
- Institute for Subatomic Physics, Utrecht University/Nikhef, Utrecht, Netherlands
| | - Sebastian Zillien
- Center for Technology and Transfer (ZTT), University of Applied Sciences Worms, Worms, Germany
| | - Dieter Röhrich
- Department of Physics and Technology, University of Bergen, Bergen, Norway
| |
Collapse
|
14
|
Mehmood S, Ud Din I, Ullah I, Mohamed HI, Basit A, Khan MN, Hussain Shah SS, Ur Rehman A. Agro-morphological and genetic diversity studies in Rice (Oryza sativa L.) germplasm using microsatellite markers. Mol Biol Rep 2021; 48:7179-7192. [PMID: 34554387 DOI: 10.1007/s11033-021-06710-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 09/14/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Knowledge of the genetic diversity and population structure of germplasm collections is an important foundation for crop improvement. Rice production across a broad range of rice-growing environments results in a diverse array of local rice varieties. Many rice varieties have been lost as a result of biodiversity loss and are now grown in Pakistan. METHODS AND RESULTS To protect the biodiversity of rice varieties, an experiment was carried out to check the genetic and morphological variations between 8 exotic and 7 local rice genotypes, using 5 different SSR markers, i.e., RM3, RM259, RM341, RM520, and RM11943. The analysis of morphological and quality traits of rice observed significant variation across genotypes. The results revealed that genotype Irri-Pak attained the highest plant height and primary branch plant-1, while genotype Mushkan produced a higher number of productive tillers and obtained a higher fertility factor (%). Similarly, the highest value for panicle length was observed for genotype Faker-e-Malakand, 1000-grains weight in genotype Calmochi, and maximum days to maturity was noticed in genotype Swati-2014. Moreover, the genotype Brio attained the highest value of stem diameter, while maximum seed length was noted in the genotype Sug Dasi. The highest number of primary branches plant-1 in genotype Ibge-I and secondary branches plant-1 in genotype Calmochi were noticed. A higher concentration of sodium and potassium was observed for the genotype Marte, while the genotype Muskan attained the maximum content of copper. Moreover, the highest concentration of iron in genotype Originario, zinc in genotype JP-5, and cadmium content were noticed in genotype Ibge. Similarly, the dendrogram analysis for quantitative parameters showed three clusters at 74.13% similarities. Whereas all the genotypes of European origin formed a separate cluster. A set of 5 simple sequence repeat primers, covering four chromosomes, amplified a total of 14 alleles and showed 100% polymorphism with an average PIC value ranging from 0.39 to 0.91. The UPGMA cluster analysis separated the 15 rice genotypes into 3 main groups based on 32.5% similarities and the highest genetic distance (45.1%) was observed between two genotypes (Fakher-e-malakand and Musa), having different geographical origins. There was no genetic distance between the genotypes Marte and Brio, irrespective of having the same origin. CONCLUSIONS The maximum genetic distances were noted for genotype, Fakhre-e-Malakand and Musa having a different origin, while the minimum genetic distance was shown by genotypes, Marte and Onice, from the same origin.
Collapse
Affiliation(s)
- Shiraz Mehmood
- Institute of Biotechnology and Genetic Engineering, The University of Agriculture, Peshawar, Pakistan
| | - Israr Ud Din
- Institute of Biotechnology and Genetic Engineering, The University of Agriculture, Peshawar, Pakistan.
| | - Izhar Ullah
- Department of Horticulture, The University of Agriculture, Peshawar, Pakistan
| | - Heba I Mohamed
- Biological and Geological Sciences Department, Faculty of Education, Ain Shams University, Cairo, Egypt.
| | - Abdul Basit
- Department of Horticulture, The University of Agriculture, Peshawar, Pakistan
| | - Mudassar Nawaz Khan
- Department of Biotechnology and Genetic Engineering, Hazara University, Mansehra, Pakistan
| | - Syed Saad Hussain Shah
- Institute of Biotechnology and Genetic Engineering, The University of Agriculture, Peshawar, Pakistan
| | - Attiq Ur Rehman
- Horticulture Technologies Production System Unit, Natural Resources Institute (Luke), Toivonlinnantie 518, 21500, Piikkiö, Finland.,Department of Agricultural Sciences, Faculty of Agriculture and Forestry, University of Helsinki, 00790, Helsinki, Finland
| |
Collapse
|
15
|
Nawaz Z, Shafique M, Zahoor MA, Siddique AB, Ali S, Arshad R, Kausar S, Khan K, Asad M, Rehman AU, Masih I. Sero-epidemiology and risk factor analysis of human brucellosis in Punjab, Pakistan: a cross sectional study. Trop Biomed 2021; 38:413-419. [PMID: 34608115 DOI: 10.47665/tb.38.3.084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Human brucellosis is a neglected zoonotic problem worldwide with a high degree of morbidity in humans and is mostly overlooked due to other febrile conditions. The aim of this study was to evaluate the sero-prevalence and risk factors of human brucellosis among subjects living in Punjab, Pakistan. In this cross-sectional study, human blood samples were collected from seven districts of Punjab, Pakistan. Information regarding personal data, demographic data and potential risk factors was collected through a structured questionnaire. Detection of anti-Brucella antibodies was done through Rose Bengal Plate Test (RBPT) and Enzyme Linked Immunosorbent Assay (ELISA). Descriptive analysis, Chi square test and Odds ratio was applied using STATA software version 12. The sero-prevalence of human brucellosis was 13.13% with significantly higher percentage in males 17.23% and age group 25-40 years 16.50% (P=< 0.001). The demographic factors positively associated with human brucellosis were lack of education (P = 0.003; OR = 1.85) and farming as an occupation (P =<0.001; OR = 2.50) Similarly, among the risk factors studied, keeping animals at home (P =<0.001; OR = 2.03), slaughtering of animals (P =<0.001; OR = 15.87) and consuming raw milk (P =<0.001; OR = 5.42) were the factors strongly connected with human brucellosis. A massive awareness should be given to livestock farmers and individuals directly linked to animals regarding risk factors and transmission of brucellosis. Consumption of unpasteurized milk and its products should be condemned to curtail this neglected disease.
Collapse
Affiliation(s)
- Z Nawaz
- Department of Microbiology, Government College University Faisalabad, Punjab, Pakistan
| | - M Shafique
- Department of Microbiology, Government College University Faisalabad, Punjab, Pakistan
| | - M A Zahoor
- Department of Microbiology, Government College University Faisalabad, Punjab, Pakistan
| | - A B Siddique
- Department of Microbiology, Government College University Faisalabad, Punjab, Pakistan
| | - S Ali
- Veterinary Research Institute, Lahore, Punjab, Pakistan
| | - R Arshad
- University College of Conventional Medicine, The Islamia University of Bahawalpur, Punjab, Pakistan
| | - S Kausar
- Department of Microbiology, Government College University Faisalabad, Punjab, Pakistan
| | - K Khan
- DHQ Hospital, Bhakkar, Punjab Pakistan
| | - M Asad
- Department of Microbiology, Government College University Faisalabad, Punjab, Pakistan
| | - A U Rehman
- Department of Microbiology, Government College University Faisalabad, Punjab, Pakistan
| | - I Masih
- Department of Microbiology, Government College University Faisalabad, Punjab, Pakistan
| |
Collapse
|
16
|
Tella AC, Owalude SO, Adimula VO, Oladipo AC, Olayemi VT, Ismail B, Mumtaz A, Rehman AU, Khan AM, Clayton HS, Tahir NM. Synthesis, Structure, and Properties of a Dinuclear Cu(II) Coordination Polymer Based on Quinoxaline and 3,3-Thiodipropionic Acid Ligands. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-01966-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
|
17
|
Pettersen HES, Volz L, Sølie JR, Alme J, Barnaföldi GG, Barthel R, van den Brink A, Borshchov V, Chaar M, Eikeland V, Genov G, Grøttvik O, Helstrup H, Keidel R, Kobdaj C, van der Kolk N, Mehendale S, Meric I, Harald Odland O, Papp G, Peitzmann T, Piersimoni P, Protsenko M, Ur Rehman A, Richter M, Tefre Samnøy A, Seco J, Shafiee H, Songmoolnak A, Tambave G, Tymchuk I, Ullaland K, Varga-Kofarago M, Wagner B, Xiao R, Yang S, Yokoyama H, Röhrich D. Helium radiography with a digital tracking calorimeter-a Monte Carlo study for secondary track rejection. Phys Med Biol 2021; 66:035004. [PMID: 33181502 DOI: 10.1088/1361-6560/abca03] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Radiation therapy using protons and heavier ions is a fast-growing therapeutic option for cancer patients. A clinical system for particle imaging in particle therapy would enable online patient position verification, estimation of the dose deposition through range monitoring and a reduction of uncertainties in the calculation of the relative stopping power of the patient. Several prototype imaging modalities offer radiography and computed tomography using protons and heavy ions. A Digital Tracking Calorimeter (DTC), currently under development, has been proposed as one such detector. In the DTC 43 longitudinal layers of laterally stacked ALPIDE CMOS monolithic active pixel sensor chips are able to reconstruct a large number of simultaneously recorded proton tracks. In this study, we explored the capability of the DTC for helium imaging which offers favorable spatial resolution over proton imaging. Helium ions exhibit a larger cross section for inelastic nuclear interactions, increasing the number of produced secondaries in the imaged object and in the detector itself. To that end, a filtering process able to remove a large fraction of the secondaries was identified, and the track reconstruction process was adapted for helium ions. By filtering on the energy loss along the tracks, on the incoming angle and on the particle ranges, 97.5% of the secondaries were removed. After passing through 16 cm water, 50.0% of the primary helium ions survived; after the proposed filtering 42.4% of the primaries remained; finally after subsequent image reconstruction 31% of the primaries remained. Helium track reconstruction leads to more track matching errors compared to protons due to the increased available focus strength of the helium beam. In a head phantom radiograph, the Water Equivalent Path Length error envelope was 1.0 mm for helium and 1.1 mm for protons. This accuracy is expected to be sufficient for helium imaging for pre-treatment verification purposes.
Collapse
|
18
|
Okakpu A, Ghaffarianhoseini A, Tookey J, Haar J, Ghaffarianhoseini A, Rehman AU. Risk factors that influence adoption of Building Information Modelling (BIM) for refurbishment of complex building projects: stakeholders perceptions. International Journal of Construction Management 2020. [DOI: 10.1080/15623599.2020.1795985] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Anthony Okakpu
- Department of Built Environment Engineering, School of Engineering, Computer and Mathematical Sciences, Auckland University of Technology, Auckland, New Zealand
| | - Ali Ghaffarianhoseini
- Department of Built Environment Engineering, School of Engineering, Computer and Mathematical Sciences, Auckland University of Technology, Auckland, New Zealand
| | - John Tookey
- Department of Built Environment Engineering, School of Engineering, Computer and Mathematical Sciences, Auckland University of Technology, Auckland, New Zealand
| | - Jarrod Haar
- Department of Management, AUT Business School, Auckland University of Technology, Auckland, New Zealand
| | - Amirhosein Ghaffarianhoseini
- Department of Built Environment Engineering, School of Engineering, Computer and Mathematical Sciences, Auckland University of Technology, Auckland, New Zealand
| | - Attiq Ur Rehman
- Department of Built Environment Engineering, School of Engineering, Computer and Mathematical Sciences, Auckland University of Technology, Auckland, New Zealand
| |
Collapse
|
19
|
Rehman AU, Friedman TB, Griffith AJ. Unresolved questions regarding human hereditary deafness. Oral Dis 2017; 23:551-558. [PMID: 27259978 PMCID: PMC5136515 DOI: 10.1111/odi.12516] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Revised: 05/27/2016] [Accepted: 05/30/2016] [Indexed: 01/18/2023]
Abstract
Human hearing loss is a common neurosensory disorder about which many basic research and clinically relevant questions are unresolved. This review on hereditary deafness focuses on three examples considered at first glance to be uncomplicated, however, upon inspection, are enigmatic and ripe for future research efforts. The three examples of clinical and genetic complexities are drawn from studies of (i) Pendred syndrome/DFNB4 (PDS, OMIM 274600), (ii) Perrault syndrome (deafness and infertility) due to mutations of CLPP (PRTLS3, OMIM 614129), and (iii) the unexplained extensive clinical variability associated with TBC1D24 mutations. At present, it is unknown how different mutations of TBC1D24 cause non-syndromic deafness (DFNB86, OMIM 614617), epilepsy (OMIM 605021), epilepsy with deafness, or DOORS syndrome (OMIM 220500) that is characterized by deafness, onychodystrophy (alteration of toenail or fingernail morphology), osteodystrophy (defective development of bone), mental retardation, and seizures. A comprehensive understanding of the multifaceted roles of each gene associated with human deafness is expected to provide future opportunities for restoration as well as preservation of normal hearing.
Collapse
Affiliation(s)
- A U Rehman
- Laboratory of Molecular Genetics, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Bethesda, MD, USA
| | - T B Friedman
- Laboratory of Molecular Genetics, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Bethesda, MD, USA
| | - A J Griffith
- Otolaryngology Branch, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Bethesda, MD, USA
| |
Collapse
|
20
|
Sultana A, Khaliq T, Ur Rehman A, Majeed W, Faisal MN, Aslam B, Iftikhar A, Sultana F, Anwar H. Pharmacological evaluation of <i>Vernonia elaeagnifolia</i> (Asteraceae) leaves in hyperlipidemic albino rabbits. TROP J PHARM RES 2017. [DOI: 10.4314/tjpr.v16i5.15] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
|
21
|
Abstract
A bottom-up fabrication of graphene via molecular self-assembly of p-Terphenyl on Ru(0001) has been investigated by scanning tunneling microcopy and density functional theory. Upon annealing of the sample at 450 °C, the intermediate stage is observed, in which the adsorbed p-Terphenyl molecules and graphitized flakes converted from the molecules coexist, implying the onset of dehydrogenation of p-Terphenyl. At the annealing temperature of 480 °C, the graphitized flakes start to convert into graphene. An adsoption energy of 5.99 eV is calculated for an individual p-Terphenyl molecule on Ru(0001), denoting a strong interaction between the adsorbate and substrate. The intermolecular interaction brings an extra adsorption energy of 0.28 eV for each molecule in the di-molecule adsorption system. During the conversion process from adsorbed molecule into graphene, the intermolecular interaction leads to the increase of the dehydrogenation barrier from 1.52 to 1.64 eV.
Collapse
Affiliation(s)
- Yiliang Cai
- Department of Physics, Zhejiang University, Hangzhou 310027, People's Republic of China. Collaborative Innovation Centre of Advanced Microstructure, Nanjing University, Nanjing 210093, People's Republic of China
| | | | | | | | | | | |
Collapse
|
22
|
Ali RA, Rehman AU, Khan SN, Husnain T, Riazuddin S, Friedman TB, Ahmed ZM, Riazuddin S. DFNB86, a novel autosomal recessive non-syndromic deafness locus on chromosome 16p13.3. Clin Genet 2011; 81:498-500. [PMID: 22211675 DOI: 10.1111/j.1399-0004.2011.01729.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
23
|
Ali S, Maharvi GM, Riaz N, Afza N, Malik A, Rehman AU, Lateef M, Iqbal L. Lipoxygenase inhibitory tetraketones: potential remedial source for inflammation and asthma. W INDIAN MED J 2009; 58:92-98. [PMID: 21866591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
OBJECTIVE A series of tetraketones has been synthesized by way of a one pot synthesis and screened for inhibitory activity against the enzyme lipoxygenase. METHOD An efficient and high yielding one pot synthesis to tetraketones [2-22] has been developed by way of tetraethyl ammonium bromide (Et4N+Br-) mediated condensation of cyclohexane-1, 3-dione [1] with a variety of aldehydes. Lipoxygenase enzyme solution was prepared so that enzyme concentration in reaction mixture was adjusted to give rates of 0.05 absorbance/minute. The test compounds were prepared in methanol of concentrations 50, 25, 12.5, 6.25 and 3.125 microM. The reaction mixture contained 160 microL (100 mM) sodium phosphate buffer (pH 8.0), 10 microL of test-compound solution and 20 microL of lipoxygenase solution. The contents were mixed and incubated for 10 minutes at 25 degrees C. The reaction was then initiated by the addition of 10 microL substrate solution (linoleic acid, 0.5 mM, 0.12% w/v tween 20 in the ratio of 1:2), with the formation of (9Z, 11E)-(13S)-13-hydroperoxyoctadeca-9,11-dienoate, the change of absorbance at 234 nm was followed for 6 minutes. The concentrations of the test compounds that inhibited the lipoxygenase activity by 50% (IC50) were determined by monitoring the effect of increasing concentrations of these compounds in the assays on the degree of inhibition. The IC50 values were calculated by means of the EZ-Fit Enzyme-Kinetics Program (Perrella Scientific Inc., Amherst, U.S.A.). RESULT The tetraketones [2-22] were synthesized in high yields (91-98%) using mild reaction conditions. Most of these compounds showed significant inhibitory activity against the enzyme lipoxygenase. It was found that the presence of substituents which increase delocalization of electrons enhances the inhibitory activity. CONCLUSION It is concluded that the study is likely to lead to the discovery of therapeutically efficient agents against important disorders such as inflammation and asthma.
Collapse
Affiliation(s)
- S Ali
- Pharmaceutical Research Centre, PCSIR Laboratories Complex Karachi, Karachi-75280, Pakistan
| | | | | | | | | | | | | | | |
Collapse
|
24
|
Abstract
OBJECTIVE To determine the prevalence of rheumatic heart disease (RHD) among school children in urban and semiurban areas of Lahore, Pakistan. METHODS A cross-sectional survey of school children aged 5-15 years from 70 schools of urban and semiurban Lahore was carried out by a team of cardiologists. Children were screened by clinical examination and diagnosis confirmed by echocardiography. Sociodemographic data were also collected. RESULTS Of 24 980 children screened, 986 (3.9%) had a confirmed cardiac lesion; 546 had RHD, 440 had congenital heart disease. The prevalence of RHD was 21.9/1000 children screened (95% CI 20.1 to 23.7). Their mean (SD) age was 10.7 (2.6) years and the female:male ratio was 1.6:1. Most (92.5%) were unaware of the diagnosis and less than 2% were taking rheumatic prophylaxis. All children belonged to a low socioeconomic group and 67% were undernourished. CONCLUSION The prevalence of RHD in the urban school population of Lahore is among the highest in the world. The younger age of onset is a special feature and most are unaware of the diagnosis, and hence not receiving life-saving secondary prophylaxis.
Collapse
Affiliation(s)
- M Sadiq
- Department of Paediatric Cardiology, Punjab Institute of Cardiology, Lahore, Pakistan.
| | | | | | | | | | | | | | | |
Collapse
|
25
|
Sharma R, Pednekar MS, Rehman AU, Gupta R. Tobacco use among school personnel in Rajasthan, India. Indian J Cancer 2004; 41:162-6. [PMID: 15659869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
BACKGROUND A very little information about tobacco use among school personnel is available. This is a step to have cross country and within country data using standardized methodology. AIMS To obtain baseline information about tobacco use prevalence, knowledge and attitude among school personnel. STUDY DESIGN Two stage cluster sample. SETTING A state of Rajasthan. MATERIALS AND MATERIALS AND METHODS: A cross-sectional study, using anonymous self-administered questionnaire. A sample of schools with probability proportional to the enrollment in grades 8-10. All school personnel in sampled schools were eligible to participate. STATISTICAL ANALYSIS Percentage, 95% confidence interval. RESULTS School response rate was 97.4% (75/77) and school personnel response rate was 67.2% (909/1352). Majority of school personnel (men 69%, women 31%) were school teachers (78.3%). The prevalence of ever any tobacco use was reported by 35.9%, more among men than women (46.2% vs. 13.0%). The prevalence of current daily smoking was reported by 14.4% (men 20.6%, women 0.8%) and occasional by 7.3%, where as current daily smokeless tobacco use was 11.7% (men 16.4%, women 1.1%) and occasional 13.6%. Current daily tobacco use was significantly more among men than women. Four out of nine reported their schools have a tobacco prohibiting policy for both students (48.4%) as well as for school personnel (44.4%) and about same (47.2%) reported their schools enforce its tobacco policy or rule. Over 85% of all school personnel strongly support the tobacco control policies and wanted training in tobacco cessation and prevention. CONCLUSION First study from Rajasthan to report tobacco use among school personnel. School personnel not only strongly support the tobacco control policies but also ready to work for its successful implementation with proper training.
Collapse
Affiliation(s)
- Rameshwar Sharma
- Healis, Sekhsaria Institute of Public Helath, Navi Mumbai, India
| | | | | | | |
Collapse
|
26
|
Pednekar M, Sharma R, Rehman AU, Gupta R. Tobacco use among school personnel in Rajasthan, India. Indian J Cancer 2004. [DOI: 10.4103/0019-509x.13770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
|
27
|
Rehman AU, Deeba F. Relapse in heroin addiction--a brief report. J PAK MED ASSOC 1992; 42:125-7. [PMID: 1507391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
28
|
Rehman AU. Growth of the hospital system in Hyderabad - historical and demographic aspects: 1880's-1950's. Bull Indian Inst Hist Med Hyderabad 1990; 20:123-39. [PMID: 11612580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
|
29
|
Abstract
All patients with puerperal psychosis admitted to the Royal Edinburgh Hospital within 90 days of childbirth during the periods 1880-90 and 1971-80 were compared. The majority of cases in both groups had an affective illness with an acute presentation and a fixed interval of onset. The 19th-century cases had a more florid presentation and a greater length of admission (mean, 151 days) to the hospital than the 20th-century ones (mean, 39 days). The incidence of the disorder rose from 0.34 per 1000 childbirths per year in the 19th-century group to 1.04 in the 20th-century one, but this could be explained by nosocomial factors. Most 19th-century cases occurred in multigravid women, which questions the association of puerperal psychosis with primiparae.
Collapse
Affiliation(s)
- A U Rehman
- Government Mental Hospital, Peshawar, Pakistan
| | | | | |
Collapse
|
30
|
|