379 results on '"Al-Adwani A"'
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352. Motives for Choosing to Study at International Branch Campuses in Qatar: Possibilities and Challenges for Qatari and Foreign Students
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Nakajima, Yusuke, Rahman, Md Mizanur, Series Editor, Pasha, Aftab Kamal, Editorial Board Member, Abushouk, Ahmed Ibrahim, Editorial Board Member, Ullah, A K M Ahsan, Editorial Board Member, Gardner, Andrew, Editorial Board Member, Brik, Anis B., Editorial Board Member, Al-Zandani, Bakeel, Editorial Board Member, Martín, Eloísa, Editorial Board Member, Solomon, Hussein, Editorial Board Member, Ulrichsen, Kristian Coates, Editorial Board Member, Cochrane, Logan John Robert, Editorial Board Member, Zweiri, Mahjoob, Editorial Board Member, Thompson, Mark C., Editorial Board Member, Hvidt, Martin, Editorial Board Member, Kamrava, Mehran, Editorial Board Member, Quilliam, Neil, Editorial Board Member, Ahmad, Rizwan, Editorial Board Member, Hassan, Samir Ibrahim, Editorial Board Member, Hanafi, Sari, Editorial Board Member, Bhuiyan, Shahjahan, Editorial Board Member, Al-Adwani, Shareefa, Editorial Board Member, Alatas, Syed Farid, Editorial Board Member, Matsukawa, Kyoko, editor, Watanabe, Akiko, editor, and Babar, Zahra R., editor
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- 2023
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353. Privileged but Immobile: Citizenship and Career Paths for the Youth of Bicultural Kuwaiti–Filipino Families
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Watanabe, Akiko, Rahman, Md Mizanur, Series Editor, Pasha, Aftab Kamal, Editorial Board Member, Abushouk, Ahmed Ibrahim, Editorial Board Member, Ullah, A K M Ahsan, Editorial Board Member, Gardner, Andrew, Editorial Board Member, Brik, Anis B., Editorial Board Member, Al-Zandani, Bakeel, Editorial Board Member, Martín, Eloísa, Editorial Board Member, Solomon, Hussein, Editorial Board Member, Ulrichsen, Kristian Coates, Editorial Board Member, Cochrane, Logan John Robert, Editorial Board Member, Zweiri, Mahjoob, Editorial Board Member, Thompson, Mark C., Editorial Board Member, Hvidt, Martin, Editorial Board Member, Kamrava, Mehran, Editorial Board Member, Quilliam, Neil, Editorial Board Member, Ahmad, Rizwan, Editorial Board Member, Hassan, Samir Ibrahim, Editorial Board Member, Hanafi, Sari, Editorial Board Member, Bhuiyan, Shahjahan, Editorial Board Member, Al-Adwani, Shareefa, Editorial Board Member, Alatas, Syed Farid, Editorial Board Member, Matsukawa, Kyoko, editor, Watanabe, Akiko, editor, and Babar, Zahra R., editor
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- 2023
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354. Children of Skilled Overseas Filipino Workers in the United Arab Emirates and Their Versions of Citizenship
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Hosoda, Naomi, Rahman, Md Mizanur, Series Editor, Pasha, Aftab Kamal, Editorial Board Member, Abushouk, Ahmed Ibrahim, Editorial Board Member, Ullah, A K M Ahsan, Editorial Board Member, Gardner, Andrew, Editorial Board Member, Brik, Anis B., Editorial Board Member, Al-Zandani, Bakeel, Editorial Board Member, Martín, Eloísa, Editorial Board Member, Solomon, Hussein, Editorial Board Member, Ulrichsen, Kristian Coates, Editorial Board Member, Cochrane, Logan John Robert, Editorial Board Member, Zweiri, Mahjoob, Editorial Board Member, Thompson, Mark C., Editorial Board Member, Hvidt, Martin, Editorial Board Member, Kamrava, Mehran, Editorial Board Member, Quilliam, Neil, Editorial Board Member, Ahmad, Rizwan, Editorial Board Member, Hassan, Samir Ibrahim, Editorial Board Member, Hanafi, Sari, Editorial Board Member, Bhuiyan, Shahjahan, Editorial Board Member, Al-Adwani, Shareefa, Editorial Board Member, Alatas, Syed Farid, Editorial Board Member, Matsukawa, Kyoko, editor, Watanabe, Akiko, editor, and Babar, Zahra R., editor
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- 2023
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355. Expressing Identity through the Dressed Body: A Study of Iranian Migrants in Gulf Cooperation Council Countries
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Goto, Manami, Rahman, Md Mizanur, Series Editor, Pasha, Aftab Kamal, Editorial Board Member, Abushouk, Ahmed Ibrahim, Editorial Board Member, Ullah, A K M Ahsan, Editorial Board Member, Gardner, Andrew, Editorial Board Member, Brik, Anis B., Editorial Board Member, Al-Zandani, Bakeel, Editorial Board Member, Martín, Eloísa, Editorial Board Member, Solomon, Hussein, Editorial Board Member, Ulrichsen, Kristian Coates, Editorial Board Member, Cochrane, Logan John Robert, Editorial Board Member, Zweiri, Mahjoob, Editorial Board Member, Thompson, Mark C., Editorial Board Member, Hvidt, Martin, Editorial Board Member, Kamrava, Mehran, Editorial Board Member, Quilliam, Neil, Editorial Board Member, Ahmad, Rizwan, Editorial Board Member, Hassan, Samir Ibrahim, Editorial Board Member, Hanafi, Sari, Editorial Board Member, Bhuiyan, Shahjahan, Editorial Board Member, Al-Adwani, Shareefa, Editorial Board Member, Alatas, Syed Farid, Editorial Board Member, Matsukawa, Kyoko, editor, Watanabe, Akiko, editor, and Babar, Zahra R., editor
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- 2023
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356. Introduction
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Matsukawa, Kyoko, Watanabe, Akiko, Babar, Zahra R., Rahman, Md Mizanur, Series Editor, Pasha, Aftab Kamal, Editorial Board Member, Abushouk, Ahmed Ibrahim, Editorial Board Member, Ullah, A K M Ahsan, Editorial Board Member, Gardner, Andrew, Editorial Board Member, Brik, Anis B., Editorial Board Member, Al-Zandani, Bakeel, Editorial Board Member, Martín, Eloísa, Editorial Board Member, Solomon, Hussein, Editorial Board Member, Ulrichsen, Kristian Coates, Editorial Board Member, Cochrane, Logan John Robert, Editorial Board Member, Zweiri, Mahjoob, Editorial Board Member, Thompson, Mark C., Editorial Board Member, Hvidt, Martin, Editorial Board Member, Kamrava, Mehran, Editorial Board Member, Quilliam, Neil, Editorial Board Member, Ahmad, Rizwan, Editorial Board Member, Hassan, Samir Ibrahim, Editorial Board Member, Hanafi, Sari, Editorial Board Member, Bhuiyan, Shahjahan, Editorial Board Member, Al-Adwani, Shareefa, Editorial Board Member, Alatas, Syed Farid, Editorial Board Member, Matsukawa, Kyoko, editor, Watanabe, Akiko, editor, and Babar, Zahra R., editor
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- 2023
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357. Belonging as Familiarity: The Bitterness of Permanent Temporariness among Qatar-born Egyptians
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Norbakk, Mari, Rahman, Md Mizanur, Series Editor, Pasha, Aftab Kamal, Editorial Board Member, Abushouk, Ahmed Ibrahim, Editorial Board Member, Ullah, A K M Ahsan, Editorial Board Member, Gardner, Andrew, Editorial Board Member, Brik, Anis B., Editorial Board Member, Al-Zandani, Bakeel, Editorial Board Member, Martín, Eloísa, Editorial Board Member, Solomon, Hussein, Editorial Board Member, Ulrichsen, Kristian Coates, Editorial Board Member, Cochrane, Logan John Robert, Editorial Board Member, Zweiri, Mahjoob, Editorial Board Member, Thompson, Mark C., Editorial Board Member, Hvidt, Martin, Editorial Board Member, Kamrava, Mehran, Editorial Board Member, Quilliam, Neil, Editorial Board Member, Ahmad, Rizwan, Editorial Board Member, Hassan, Samir Ibrahim, Editorial Board Member, Hanafi, Sari, Editorial Board Member, Bhuiyan, Shahjahan, Editorial Board Member, Al-Adwani, Shareefa, Editorial Board Member, Alatas, Syed Farid, Editorial Board Member, Matsukawa, Kyoko, editor, Watanabe, Akiko, editor, and Babar, Zahra R., editor
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- 2023
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358. The Impediments for Second-generation Migrants to Enter Higher Education in the Gulf Cooperation Council Countries
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Menon, Lakshmi Venugopal, James, Thomas Bonnie, Rahman, Md Mizanur, Series Editor, Pasha, Aftab Kamal, Editorial Board Member, Abushouk, Ahmed Ibrahim, Editorial Board Member, Ullah, A K M Ahsan, Editorial Board Member, Gardner, Andrew, Editorial Board Member, Brik, Anis B., Editorial Board Member, Al-Zandani, Bakeel, Editorial Board Member, Martín, Eloísa, Editorial Board Member, Solomon, Hussein, Editorial Board Member, Ulrichsen, Kristian Coates, Editorial Board Member, Cochrane, Logan John Robert, Editorial Board Member, Zweiri, Mahjoob, Editorial Board Member, Thompson, Mark C., Editorial Board Member, Hvidt, Martin, Editorial Board Member, Kamrava, Mehran, Editorial Board Member, Quilliam, Neil, Editorial Board Member, Ahmad, Rizwan, Editorial Board Member, Hassan, Samir Ibrahim, Editorial Board Member, Hanafi, Sari, Editorial Board Member, Bhuiyan, Shahjahan, Editorial Board Member, Al-Adwani, Shareefa, Editorial Board Member, Alatas, Syed Farid, Editorial Board Member, Matsukawa, Kyoko, editor, Watanabe, Akiko, editor, and Babar, Zahra R., editor
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- 2023
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359. Long-term Residency Rights, Citizenship Schemes and the Attraction of Talents: Transnational Presence over Generations in the Face of Investment Migration
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Beaugrand, Claire, Rahman, Md Mizanur, Series Editor, Pasha, Aftab Kamal, Editorial Board Member, Abushouk, Ahmed Ibrahim, Editorial Board Member, Ullah, A K M Ahsan, Editorial Board Member, Gardner, Andrew, Editorial Board Member, Brik, Anis B., Editorial Board Member, Al-Zandani, Bakeel, Editorial Board Member, Martín, Eloísa, Editorial Board Member, Solomon, Hussein, Editorial Board Member, Ulrichsen, Kristian Coates, Editorial Board Member, Cochrane, Logan John Robert, Editorial Board Member, Zweiri, Mahjoob, Editorial Board Member, Thompson, Mark C., Editorial Board Member, Hvidt, Martin, Editorial Board Member, Kamrava, Mehran, Editorial Board Member, Quilliam, Neil, Editorial Board Member, Ahmad, Rizwan, Editorial Board Member, Hassan, Samir Ibrahim, Editorial Board Member, Hanafi, Sari, Editorial Board Member, Bhuiyan, Shahjahan, Editorial Board Member, Al-Adwani, Shareefa, Editorial Board Member, Alatas, Syed Farid, Editorial Board Member, Matsukawa, Kyoko, editor, Watanabe, Akiko, editor, and Babar, Zahra R., editor
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- 2023
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360. Untitled.
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Al-Adwani, Andrew, Hill, Jonathan W., and Kingdon, David
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LETTERS to the editor ,BIOLOGY ,RESEARCH - Abstract
A letter to the editor is presented in response to one article about biological advancements and psychosocial research which appeared in a 2007 issue of "The British Journal of Psychiatry."
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- 2008
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361. Coexisting Diogenes and Capgras syndromes.
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Al-Adwani, Andrew and Nabi, Waheed
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COGNITION disorders in old age , *DISEASES in older people - Abstract
The co-occurrence of Diogenes and Capgras syndromes, both unusual in themselves, would be expected to be rare. A MEDLINE search using the terms Diogenes, Capgras, self-neglect and domestic squalor revealed no previous reports of this combination of disorders. Both conditions are somewhat dubiously named as syndromes' when in fact they are probably no more than symptoms with different causes. Of particular interest in this case is the exacerbation of the self-neglect, characteristic of the Diogenes syndrome, by the delusional misidentification which marks the Capgras syndrome; as well as the reinforcement of the previously recognised association with frontal lobe pathology. The role of medication, though limited, is described. (Int J Psych Clin Pract 2001; 5:75-76). [ABSTRACT FROM AUTHOR]
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- 2001
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362. Exploring service quality in the Islamic banking industry in Kuwait : analysis of customer perceptions
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Al-Adwani, Tahani Soud
- Subjects
- 332
- Abstract
Service quality management is an important organizational factor, through which organizations differentiate themselves, compete, and take the lead in the marketplace. It is even more challenging for banks and financial services which, by and large, offer products and services that are difficult for customers to differentiate. Improvements in service quality are expected to increase customer satisfaction, which, in turn, will increase the banks’ ability to retain their customers, broaden their market share, and increase profitability. This study, hence, is an attempt to measure the perceived service quality of three Islamic banks in Kuwait; Kuwait Finance House, Kuwait International Bank, and Boubyan Bank. Additional dimensions are added to the service quality model (SERVQUAL) to measure the perceived service quality and the customers’ perceptions. Dimensions such as; Shari’ah compliancy, the competitiveness between Islamic banks in Kuwait, the technology factors, and the general customer satisfaction were incorporated to the respective model. The study aims to identify those dimensions that influence the level of customers’ perceptions in the sampled banks, examine the effect of service quality on customer satisfaction and assess the correlation between the Islamic banking variables and the SERQUAL dimensions. To attain these aims the study utilized a sample of 700 responses across the three Islamic banks. The study findings demonstrate an above-average level of satisfaction among the Islamic banks’ customers. ‘Compliance’, ‘empathy’, and ‘assurance’ were the most important dimensions as perceived by the Islamic banks customers in Kuwait. The results showed a significant relationship between customer satisfaction and some of the modified SERVQUAL dimensions namely; ‘empathy’, ‘assurance’, ‘compliance’, and ‘competitiveness’. The study also found that demographic factors have significant effect on the perceptions of service quality in Kuwaiti Islamic banks. Based on these results and findings, it could be concluded that in Kuwaiti Islamic banks customers are satisfied with the quality of services depending on their bank being Shari’ah-compliant and assured to deliver the promised services, employees being considerate and understanding, and finally being competitive by offering the best service with competitive charges. The study also confirmed that the avoidance of interest and other religious motives are the most important reasons why customers prefer to patronize the Islamic banks in Kuwait in general. However, when testing each bank individually, differences accrued in ranking the religious factor and being compliant with Islamic Shari’ah principles. The results are expected to provide both theoretical and practical contributions in the area of service quality management and customer behavior in Islamic banking. The overall findings are important for service quality managers to identify efficient and effective approaches for improving quality in their banks.
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- 2010
363. METHADONE AND EXCESSIVE SWEATING.
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AL‐ADWANI, A. and BASU, N.
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LETTERS to the editor , *METHADONE treatment programs , *DRUG side effects - Abstract
Presents letters to the editor about substance abuse. Side effects of the drug Methadone.
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- 2004
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364. Comparative Study of Ultrastructural Observations on Blood Cells of Local Omani and Cobb 500 Broiler Chickens.
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Al-Aufi, Shadha K., Ali, Haytham, El-Zaiat, Hani M., Al-Kharousi, Kaadhia, Al-Adwani, Salma R., El Tahir, Yasmin, Al Nabhani, Abdulrahman, Al Kindi, Mohamed A., and Al-Marzooqi, Waleed
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BLOOD cells , *BROILER chickens , *POULTRY breeding , *AGRICULTURAL egg production , *BLOOD platelets , *EGGS , *CHICKEN breeds - Abstract
The local Omani chicken represents a long-established indigenous chicken breed in the Sultanate of Oman. Many farmers in Oman raise local chickens for meat and egg production. Therefore, to ensure an enhanced production of local breed chickens, it is important to assess their health performance. The present study was conducted to describe the comparative ultrastructural details of the blood cells of Omani and Cobb 500 chickens. Twenty apparently healthy 35-old birds (10 per strain) of either sex reared at the Poultry Research Unit at the Agricultural Experiment Station, Sultan Qaboos University. The blood was collected from wing vein into tubes containing EDTA as anticoagulant. The blood was further processed for transmission electron microscopic study. The results obtained showed that all blood cells of both Cobb 500 and Omani chicken were similar. The heterophil nucleus had a multi-lobed nucleus. The number of nuclei lobes ranges from 2 to 3. The Eosinophil had a distinctive appearance and mostly had a lobulated nucleus. Basophil was round in appearance and had four types of granules (dense granules, mottled granules, web or net granules and myelin granules) which can be seen clearly. The lymphocytes were the smallest leukocytes and it was characterized as small round cell with few cytoplasmic process. The monocytes were round in shape with kidney-shaped or indented nucleus. The nucleus had more heterochromatin patches compared to euchromatin. The thrombocytes were distinguished from other cells by their dense nucleus and the large vacuoles found in the cytoplasm. In conclusion, this study shows great similarities in the ultrastructure of all blood cells composition between local Omani and Cobb 500 broiler breeds. [ABSTRACT FROM AUTHOR]
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- 2023
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365. The Use of Artificial Intelligence in Medical Imaging: A Nationwide Pilot Survey of Trainees in Saudi Arabia.
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Mirza, Ahmad A., Wazgar, Omar M., Almaghrabi, Ammar A., Ghandour, Roaa M., Alenizi, Sarah A., Mirza, Abdulrahim A., Alraddadi, Khalid S., Al-Adwani, Fayzah H., Alsakkaf, Mohammed A., and Aljuaid, Sattam M.
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COMPUTER-assisted image analysis (Medicine) , *ARTIFICIAL intelligence , *DIAGNOSTIC imaging , *IMAGE analysis , *WORKFLOW - Abstract
Artificial intelligence is dramatically transforming medical imaging. In Saudi Arabia, there are a lack of studies assessing the level of artificial intelligence use and reliably determining the perceived impact of artificial intelligence on the radiology workflow and the profession. We assessed the levels of artificial intelligence use among radiology trainees and correlated the perceived impact of artificial intelligence on the workflow and profession with the behavioral intention to use artificial intelligence. This cross-sectional study enrolled radiology trainees from Saudi Arabia, and a 5-part-structured questionnaire was disseminated. The items concerning the perceived impact of artificial intelligence on the radiology workflow conformed to the six-step standard workflow in radiology, which includes ordering and scheduling, protocoling and acquisition, image interpretation, reporting, communication, and billing. We included 98 participants. Few used artificial intelligence in routine practice (7%). The perceived impact of artificial intelligence on the radiology workflow was at a considerable level in all radiology workflow steps (range, 3.64–3.97 out of 5). Behavioral intention to use artificial intelligence was linearly correlated with the perceptions of its impact on the radiology workflow and on the profession (p < 0.001). Artificial intelligence is used at a low level in radiology. The perceived impact of artificial intelligence on radiology workflow and the profession is correlated to an increase in behavioral intention to use artificial intelligence. Thus, increasing awareness about the positive impact of artificial intelligence can improve its adoption. [ABSTRACT FROM AUTHOR]
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- 2022
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366. A kinetic study of methanol synthesis in a slurry reactor using a CuO/ZnO/Al2O3 catalyst
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Al-Adwani, Hamad [Texas A & M Univ., College Station, TX (United States)]
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- 1992
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367. A review of heterogeneous nucleation of calcium carbonate and control strategies for scale formation in multi-stage flash (MSF) desalination plants.
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Zhao, Junjie, Wang, Minghui, Lababidi, Haitham M.S., Al-Adwani, Hamad, and Gleason, Karen K.
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SALINE water conversion , *NUCLEATION , *CALCIUM carbonate , *SOLUTION (Chemistry) , *DISSOLVED organic matter - Abstract
The formation of solid inorganic salts from solutions is of fundamental importance for industrial, geological, and biological processes. Here, we review the literature on the fundamentals of inorganic scaling with the goal of elucidating the underlying phenomena observed during thermal desalination processes, mainly multi-stage flash (MSF). We will focus on one of the most common foulants, CaCO 3 , recognizing that similar phenomena occur for other salts and that behaviors in mixtures with other salts and organic molecules will impact the real world situation. This review will cover a wide range of dimensions, providing views from molecular level to plant scale. In addition to the mechanism and kinetics of scale formation in MSF, we will also review current strategies to control scaling in MSF and highlight directions for future development. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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368. Analysis of genetic variability of respiratory syncytial virus groups A and B in Kuwait.
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Madi, Nada, Chehadeh, Wassim, Asadzadeh, Mohammed, Al-Turab, Mariam, and Al-Adwani, Anfal
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RESPIRATORY syncytial virus , *RESPIRATORY infections , *G protein genetics , *REVERSE transcriptase polymerase chain reaction , *CLADISTIC analysis - Abstract
Respiratory syncytial virus (RSV) is the most frequently identified viral agent in infants, children, and elderly people with acute respiratory tract infections (ARTIs). This study is the only one of its kind in Kuwait, and its purpose was to investigate the genetic variability of the G protein gene in RSV strains prevalent in Kuwait. Respiratory samples were collected from patients with ARTIs in various hospitals in Kuwait and subjected to reverse transcription PCR (RT-PCR) amplifying a fragment of the G gene of RSV. A total of 305 samples were collected between January and mid-December 2016, and 77 (25.2%) were positive for RSV. Group A viruses were predominant over group B viruses; the RSV-A group was detected in 52 (67.5%) of the positive samples, while the RSV-B group was detected in 25 (32.5%) of the positive samples. Phylogenetic analysis showed that all RSV-A strains grouped into eight clusters of identical sequences of untyped strains. Twelve RSV-B strains, on the other hand, belonged to the RSV-B/BA10 genotype, while the rest were untyped. These data suggest that new and untyped strains of RSV-A group likely predominated in Kuwait and that the BA10 genotype of the RSV-B group became the dominant genotype in the 2016 season. [ABSTRACT FROM AUTHOR]
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- 2018
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369. Improving off-structure carbonate reservoir characterization using integrated Shared Earth Approach and Forward Stratigraphic Modelling: The Marrat Fm of southern Kuwait.
- Author
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Hawie, N., Al-Wazzan, H.A., Al Mershed, M., Al Awadhi, Muneera, Prakash, A., and Al-Adwani, T.
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CARBONATE reservoirs , *SEQUENCE stratigraphy , *SYSTEM identification , *FACIES , *CARBONATES , *MUDSTONE - Abstract
A high-resolution reservoir characterization workflow is applied to assess the off-structure prospectivity of Lower Jurassic complex carbonate reservoirs of the Marrat Formation in the southern part of The State of Kuwait along the Dharif-Abduliyah fields. A detailed sedimentological and petrophysical assessment was integrated with 3D seismic interpretation and delineated vertical and lateral facies changes within the fields, which are affected by sets of complex fault patterns. Carbonate geo-bodies have been mapped using seismic stratigraphy, and 3D multi-seismic attribute and seismic acoustic inversion workflows. The Middle Marrat has been subdivided into 5 units (Middle Marrat 1-MM1 to Middle Marrat 5-MM5) that show vertical and lateral lithological and facies variability. The developed integrated sequence stratigraphic framework permitted to better assess the influence of accommodation variations as well as carbonate ecological settings on sedimentary facies development. This framework pointed to the influence of marine incursions and subsequent flooding surfaces, on the development of wackestone to mudstone textures interbedded within porous grainier inner ramp/shoal reservoir intervals. This integrated Shared Earth Approach that combined the various multi-disciplinary and multi-scale results was supported for the first-time by high resolution Forward Stratigraphic Modelling to provide a mapping and identification of petroleum systems elements including potential reservoir locations and baffles as well as stratigraphic trapping mechanisms. This workflow opens a new perspective to increasing hydrocarbon reserves along the Dharif and Abduliyah Fields as well as many other fields along the State of Kuwait. • Integrated sequence stratigraphic assessment of the Middle Marrat Reservoir. • 3D reservoir characterization using Seismic stratigraphy, multi-attribute assessment and seismic inversion. • Integrated shared earth approach supported by forward stratigraphic model at reservoir scale. • Petroleum systems element de-risking and prospect evaluation. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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- View/download PDF
370. A kinetic study of methanol synthesis in a slurry reactor using a CuO/ZnO/Al sub 2 O sub 3 catalyst
- Author
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Al-Adwani, H
- Published
- 1992
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371. Prediction of product quality for catalytic hydrocracking of vacuum gas oil
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Lababidi, Haitham M.S., Chedadeh, Dduha, Riazi, M.R., Al-Qattan, Ayman, and Al-Adwani, Hamad A.
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HYDROCRACKING , *PRODUCT quality , *PREDICTION models , *PETROLEUM refineries , *FOSSIL fuels , *PILOT plants , *CATALYSTS - Abstract
Abstract: The main objective of this work is to develop a predictive model for predicting the product quality of vacuum gas oil (VGO) hydrocracking process. Experimental data were obtained using a pilot plant hydrocracking catalytic reactor loaded with the same catalyst type used in a local refinery. Two sets of experimental runs were conducted under various operating conditions. The first one consisted of 18 runs and was used for parameter estimation, while the second set consisted of 29 runs and was used for model validation. Distillation curves of the cracked products were obtained using the simulated distillation (SimDist) test. A distribution model based on probability density function was used to develop the predictive model. The distribution model presents the boiling point as a function of the distilled weight fraction. Model parameters were estimated and related to the specific gravity of the cracked product. Model validation results showed that the proposed model is capable of predicting the distillation curves of the hydrocracked products accurately, especially at high operating severity. Simplicity and accuracy of the developed model makes it suitable for online analysis, to estimate the conversion as well as the product distribution of hydrocracking units in refineries. [ABSTRACT FROM AUTHOR]
- Published
- 2011
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372. Circulation of new lineages of RSV-A and RSV-B in Kuwait shows high diversity in the N- and O-linked glycosylation sites in the G protein between 2020 and 2022.
- Author
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Madi N, Sadeq M, Safar HA, Al-Adwani A, and Al-Turab M
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- Humans, Kuwait, Glycosylation, Infant, Child, Preschool, Female, Male, Viral Fusion Proteins genetics, Viral Fusion Proteins immunology, Adult, Child, Middle Aged, Aged, Young Adult, Adolescent, Respiratory Tract Infections virology, Viral Envelope Proteins genetics, Respiratory Syncytial Virus, Human genetics, Respiratory Syncytial Virus, Human classification, Respiratory Syncytial Virus, Human isolation & purification, Respiratory Syncytial Virus, Human immunology, Respiratory Syncytial Virus Infections virology, Genotype, Genetic Variation, Phylogeny
- Abstract
The human respiratory syncytial virus (RSV) is a significant health concern, particularly for infants, young children, and the elderly. This virus is known to evolve continuously due to environmental factors and herd immunity. In light of this, our study aimed to analyze the genetic variability of the G protein in RSV-A and RSV-B genotypes in Kuwait from 2020 to 2022. Between January 2020 and September 2022, we collected 490 respiratory samples from hospitalized patients with acute respiratory tract infections. These samples were tested and confirmed positive for RSV using multiplex Real-Time PCR. Subsequently, the samples underwent nucleic acid sequencing using the advanced Nanopore sequencing technology to analyze the full-length G gene. Sequence analysis showed that 64 isolates (76%) were RSV-A, and 20 isolates (24%) were RSV-B. The G genes of RSV-A belonged to genotype GA2.3.5, while all the RSV-B genotypes belonged to GB5.0.5a. New lineages and sub-lineages of RSV-A and RSV-B were detected, indicating the circulation of new strains in Kuwait. Many unique and new amino acid changes, including insertions, were found in the G proteins of Kuwaiti isolates, with the highest variability in the second hypervariable region. An increased number of N and O-linked glycosylation sites were also identified in the G protein, which could speculate to alter the antigenicity of RSV. The identified changes in the G protein of RSV-A and RSV-B genotypes might result from immune pressure and could affect the antigenic characteristics of circulating strains in Kuwait. This could potentially lead to new RSV variants that can evade the immune response. Our in-depth analysis of the G proteins of both RSV-A and RSV-B could aid in the development of more potent treatments and vaccines., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2024 Madi, Sadeq, Safar, Al-Adwani and Al-Turab.)
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- 2024
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373. Genomic characterization of circulating human respiratory syncytial viruses A and B in Kuwait using whole-genome sequencing.
- Author
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Madi N, Safar HA, Al-Adwani A, Sadeq M, and Al-Turab M
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- Humans, Kuwait epidemiology, Infant, Adult, Child, Preschool, Child, Female, Male, Middle Aged, Genetic Variation, Aged, Adolescent, Genomics, Young Adult, Respiratory Syncytial Virus, Human genetics, Respiratory Syncytial Virus, Human classification, Respiratory Syncytial Virus, Human isolation & purification, Respiratory Syncytial Virus Infections virology, Respiratory Syncytial Virus Infections epidemiology, Whole Genome Sequencing, Phylogeny, Genome, Viral genetics, Genotype, Respiratory Tract Infections virology, Respiratory Tract Infections epidemiology
- Abstract
The human respiratory syncytial virus (RSV) is considered one of the most common viruses that infect children globally. The virus is known to have extensive gene sequence variability within and between RSV groups A and B globally; however, there is no information on the whole-genome characterization and diversity of RSV in Kuwait. Therefore, this study aimed to sequence the entire genome of RSV strains isolated from patients with acute respiratory tract infection (ARTI) in Kuwait. Therefore, this study aimed to sequence the entire genome of RSV strains isolated from patients with ARTI in Kuwait. Between January 2020 and September 2022, 7,093 respiratory samples were collected from hospitalized infants, children, and adults and were analyzed for respiratory viruses by multiplex real-time PCR. Whole-genome sequencing using the Oxford Nanopore sequencing technology was performed on 84 RSV-positive samples. The results revealed a higher prevalence of group A (76%) than group B (24%) RSV isolates. Phylogenetic analysis showed that RSV-A strains clustered with the GA2.3.5 sub-genotype and RSV-B strains clustered with the GB5.0.5a sub-genotype; however, forming new lineages of RSV-A and RSV-B circulated in Kuwait during this period. Genetic variability was higher among the group A viruses than group B viruses, and the rate of synonymous and missense mutations was high in genes other than the G protein-coding gene. We also detected several known and unique molecular markers in different protein-coding genes. This is the first study in Kuwait to characterize the whole genomes of RSV A and B to identify the circulating genotypes, comprehend the genetic diversity and the evolution of the virus, and identify important genetic markers associated with specific genotypes.IMPORTANCEWhole-genome sequencing of respiratory syncytial virus (RSV) strains in Kuwait using MinION Nanopore technology was used to characterize and analyze the genotypes and sub-genotypes of the RSV circulating among patients with acute respiratory tract infections in Kuwait. This study also identified known and unknown gene mutations and imported genetic markers associated with specific genotypes. These results will assist in establishing a framework for RSV classification and allow for a better consideration of the mechanisms leading to the generation of diversity of RSV. In addition, these data will allow a comparison of vaccine viruses with those in Kuwait, providing useful insights into future vaccine and therapy strategies for RSV in Kuwait., Competing Interests: The authors declare no conflict of interest.
- Published
- 2024
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374. Strain Variation Based on Spike Glycoprotein Gene of SARS-CoV-2 in Kuwait from 2020 to 2021.
- Author
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Madi N, Sadeq M, Essa S, Safar HA, Al-Adwani A, and Al-Khabbaz M
- Abstract
Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is the causative agent of coronavirus disease 2019 (COVID-19), which was first identified in Wuhan, China, in December 2019. With the global transmission of the virus, many SARS-CoV-2 variants have emerged due to the alterations of the spike glycoprotein. Therefore, the S glycoprotein encoding gene has widely been used for the molecular analysis of SARS-Co-2 due to its features affecting antigenicity and immunogenicity. We analyzed the S gene sequences of 35 SARS-CoV-2 isolates in Kuwait from March 2020 to February 2021 using the Sanger method and MinION nanopore technology to confirm novel nucleotide alterations. Our results show that the Kuwaiti strains from clade 19A and B were the dominant variants early in the pandemic, while clade 20I (Alpha, V1) was the dominant variant from February 2021 onward. Besides the known mutations, 21 nucleotide deletions in the S glycoprotein in one Kuwaiti strain were detected, which might reveal a recombinant SARS-CoV-2 with the defective viral genome (DVG). This study emphasizes the importance of closely perceiving the emerging clades with these mutations during this continuous pandemic as some may influence the specificity of diagnostic tests, such as RT-PCR and even vaccine design directing these positions.
- Published
- 2022
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375. Human bocavirus (HBoV) in Kuwait: molecular epidemiology and clinical outcome of the virus among patients with respiratory diseases.
- Author
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Madi NM and Al-Adwani A
- Subjects
- Adolescent, Adult, Aged, Aged, 80 and over, Child, Child, Preschool, Coinfection epidemiology, DNA, Viral genetics, Female, Genotype, Human bocavirus genetics, Human bocavirus pathogenicity, Humans, Incidence, Infant, Kuwait epidemiology, Male, Middle Aged, Molecular Epidemiology methods, Nasopharynx virology, Phylogeny, Respiratory Tract Infections genetics, Retrospective Studies, Sequence Analysis, DNA, Parvoviridae Infections epidemiology, Respiratory Tract Infections epidemiology, Respiratory Tract Infections virology
- Abstract
Introduction. Globally, human bocavirus (HBoV) has been detected in respiratory samples from patients suffering from upper and lower respiratory diseases. In Kuwait, little is known about the epidemiological and clinical characterization of the virus and genetic characterization of the virus as a respiratory pathogen is unknown. Aim. This study aims to explore the molecular epidemiology and clinical features of HBoV isolates in patients with respiratory diseases. Methodology. Retrospectively, between 2018 and 2020, 5941 respiratory samples from patients with respiratory diseases were screened for respiratory viruses using multiplex real-time PCR. Samples that were positive for HBoV were then subjected to NP1 and VP1/PV2 phylogenetic analysis. Results. HBoV was detected in 1.9 % of the patients, with a peak incidence of infection among children <1 year old. Co-infection with other respiratory viruses was observed in 56.8 % of HBoV-positive patients. Fever, cough and respiratory distress were the most common clinical features of HBoV infection. Phylogenetic analysis of the Kuwaiti HBoV isolates revealed that all the isolates were of the HBoV-1 genotype, with slight sequence variations among the isolates. Conclusion. This study illustrated the predominance of the HBoV-1 genotype in patients with respiratory diseases in Kuwait with minimal genetic variability. It also highlighted the clinical features of HBoV-1 infection, verifying its role in respiratory diseases.
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- 2020
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376. Adenovirus types associated with severe respiratory diseases: A retrospective 4-year study in Kuwait.
- Author
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Chehadeh W, Al-Adwani A, John SE, Al-Dhufairi S, Al-Dousari H, Alkhaledi M, and Al-Nakib W
- Subjects
- Adenovirus Infections, Human virology, Adenoviruses, Human genetics, Adolescent, Adult, Child, Child, Preschool, Cluster Analysis, Coinfection, Female, Genotyping Techniques, Hospitalization, Hospitals, Humans, Infant, Kuwait epidemiology, Male, Molecular Diagnostic Techniques, Molecular Epidemiology, Real-Time Polymerase Chain Reaction, Respiratory Tract Infections virology, Retrospective Studies, Sequence Analysis, DNA, Sequence Homology, Young Adult, Adenovirus Infections, Human epidemiology, Adenoviruses, Human classification, Adenoviruses, Human isolation & purification, Genotype, Respiratory Tract Infections epidemiology
- Abstract
Human adenovirus (HAdV) infection can result in a severe respiratory disease. The aim of this study was to identify HAdV types detected in patients hospitalized for severe respiratory illness. The study population consisted of 743 patients with severe respiratory disease admitted to four major hospitals in Kuwait between January 2013 and December 2016. Respiratory specimens were retrospectively screened for 20 respiratory viruses by real-time PCR. The HAdV hexon gene was amplified and directly sequenced, and HAdV types were identified by performing Bayesian phylogenetic analysis. HAdV DNA was detected in 27 (3.6%) patients, with peaks in November and March. Most patients were infants and young children suffering from pneumonia or acute bronchiolitis. The detected HAdV types were C1, C2, C5, B3, and B7. Clusters of HAdV C1, C2, and C5 were observed with high posterior probability. All patients infected with HAdV C5 and 50% of patients infected with HAdV C2 or B7 were admitted to the intensive care unit (ICU). Co-infection with other viruses was detected in 44.4% of patients. The most common co-infecting virus was rhinovirus (HRV). HAdV/HRV co-infection was detected in two children who presumably developed disseminated HAdV infection and died. This is the first report describing the circulation of HAdV types associated with severe outcomes in Kuwait. These findings highlight the need for a national surveillance system to monitor changes in predominant HAdV types and increased numbers of severe respiratory infections., (© 2018 Wiley Periodicals, Inc.)
- Published
- 2018
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377. Needle fixation is as elusive as ever: comments on McBride et al.'s "Needle fixation, the drug user's perspective: a qualitative study".
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Al-Adwani A
- Subjects
- Humans, Needles, Object Attachment
- Published
- 2001
378. The myth of needle fixation.
- Author
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al-Adwani A
- Subjects
- Humans, Injections, Intravenous, Heroin Dependence psychology, Needles, Substance Abuse, Intravenous psychology
- Published
- 2001
379. Neuroleptics and bone mineral density.
- Author
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al-Adwani A
- Subjects
- Antipsychotic Agents therapeutic use, Female, Fractures, Bone economics, Fractures, Bone etiology, Health Care Costs, Humans, Osteoporosis economics, Antipsychotic Agents adverse effects, Hyperprolactinemia chemically induced, Hyperprolactinemia complications, Osteoporosis etiology
- Published
- 1997
- Full Text
- View/download PDF
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