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Article ; Online: Early intervention in autism spectrum disorder: The need for an international approach.

Abubakar, Amina / Kipkemoi, Patricia

Developmental medicine and child neurology

2022 Volume 64, Issue 9, Page(s) 1051–1058

MeSH term(s)	Autism Spectrum Disorder/diagnosis ; Autism Spectrum Disorder/therapy ; Early Intervention, Educational ; Humans
Language	English
Publishing date	2022-06-23
Publishing country	England
Document type	Journal Article ; Comment
ZDB-ID	80369-8
ISSN	1469-8749 ; 0012-1622
ISSN (online)	1469-8749
ISSN	0012-1622
DOI	10.1111/dmcn.15327
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Article ; Online: Study of PRESAGE® dosimeter for end-to-end 3D radiotherapy verification using an anthropomorphic phantom with bespoke dosimeter insert.

Mohyedin, Muhammad Zamir / Zin, Hafiz Mohd / Abubakar, Auwal / Rahman, Ahmad Taufek Abdul

Physical and engineering sciences in medicine

2024

Abstract: Modern radiotherapy techniques have advanced and become more sophisticated. End-to-end 3D verification of the complex radiotherapy dose distribution in an anthropomorphic phantom can ensure the accuracy of the treatment delivery. The phantoms commonly ... ...

Abstract	Modern radiotherapy techniques have advanced and become more sophisticated. End-to-end 3D verification of the complex radiotherapy dose distribution in an anthropomorphic phantom can ensure the accuracy of the treatment delivery. The phantoms commonly used for dosimetry are homogeneous solid water phantom which lacks the capability to measure the 3D dose distribution for heterogeneous tissues necessary for advanced radiotherapy techniques. Therefore, we developed an end-to-end 3D radiotherapy dose verification system based on MAX-HD anthropomorphic phantom (Integrated Medical Technologies Inc., Troy, New York) with bespoke intracranial insert for PRESAGE® dosimeter. In this study, several advanced radiotherapy treatment techniques of various levels of complexity; 3D-CRT, IMRT and VMAT treatment, were planned for a 20 mm diameter of a spherical target in the brain region and delivered to the phantom. The dosimeters were read out using an in-house developed optical computed tomography (OCT) imaging system known as 3DmicroHD-OCT. It was found that the measured dose distribution of the PRESAGE® when compared with the measured dose distribution of EBT film and Monaco TPS has a maximum difference of less than 3% for 3D-CRT, IMRT and VMAT treatment plans. The gamma analysis results of PRESAGE® in comparison to EBT film and Monaco TPS show pass rates of more than 95% for the criteria of 3% dose difference and 3 mm distance-to-agreement. This study proves the capability of PRESAGE® and bespoke MAX-HD phantom in conjunction with the 3DmicroHD-OCT system to measure 3D dose distribution for end-to-end dosimetry verification.
Language	English
Publishing date	2024-04-18
Publishing country	Switzerland
Document type	Journal Article
ISSN	2662-4737
ISSN (online)	2662-4737
DOI	10.1007/s13246-024-01418-9
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Article ; Online: Impact of a visiting consultant neurosurgeon: The Nigerian experience.

Usman, B / Ajulo, A / Abubakar, A M

World neurosurgery: X

2023 Volume 18, Page(s) 100161

Abstract: Objective: To study the impact of a visiting consultant neurosurgeon on the management and outcome of neurosurgical patients in a hospital with no resident neurosurgeon.: Methods: This is a 5-year retrospective study of neurosurgical conditions and ... ...

Abstract	Objective: To study the impact of a visiting consultant neurosurgeon on the management and outcome of neurosurgical patients in a hospital with no resident neurosurgeon. Methods: This is a 5-year retrospective study of neurosurgical conditions and their management outcomes by a visiting consultant neurosurgeon in a Nigerian Tertiary institution from January 2016 to December 2020. Results: Thousand two hundred and four (1,204) patients were reviewed. Patients' ages were between 1 h and to 86-year-olds, with a mean of 23 years and a mode of 32 ± 4 years. Children were 423 (35.1%), with 781(64.9%) adults. Males were 862 (71.6%), and Females were 342 (28.4%), with a Male to Female ratio of 5:2. Congenital problems were 170 (14.1% of 1204): meningocoeles (38, 22.4%), myelomeningocoeles (61, 35.9%), encephalocoeles (24, 14.1%), anencephaly (6, 3.5%), and hydrocephalus (41, 24.1%). Acquired conditions were 1034 (85.9% of 1204): Head injuries (486, 47%), spinal cord injuries (51, 5%), Pyogenic brain Abscess (3, 0.3%), Pott's disease (2, 0.2%), Hydrocephalus (63, 6.1%), brain tumour (5, 0.5%), degenerative spine (421, 40.7%), vascular (3, 0.3%). Surgery was indicated in 348(28.9%) patients. Two hundred and twenty-six (18.8% of 1204) had surgeries, while 978 (81.2% of 1204) had no surgeries. Referred to other facilities were 122 (10.1%). Overall, surgical intervention was 64.9% (226 of 348), with mortality of 13.5% (18 patients) among those who had surgical interventions. Conclusions: In countries with very few medical specialists, particularly neurosurgeons, such a regular visit can impact the care of neurosurgical patients in their environment.
Language	English
Publishing date	2023-02-03
Publishing country	United States
Document type	Journal Article
ISSN	2590-1397
ISSN (online)	2590-1397
DOI	10.1016/j.wnsx.2023.100161
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Article ; Online: Constraints to manufacturing companies in implementation of green manufacturing in Dar es Salaam, Tanzania

Abubakar A. Khamis / Ibrahim Issa / Emmanuel J. Munishi

International Journal of Research In Business and Social Science, Vol 11, Iss

2022 Volume 7

Abstract: Despite the crucial role that businesses have played in the adoption of green supply chains, it appears that manufacturing enterprises have not effectively utilized their responsibility to ensure green manufacturing. This study uses Bakhresa Foods ... ...

Abstract	Despite the crucial role that businesses have played in the adoption of green supply chains, it appears that manufacturing enterprises have not effectively utilized their responsibility to ensure green manufacturing. This study uses Bakhresa Foods Product Limited as a case study to better understand the constraints facing manufacturing firms engaged in green manufacturing and offers suggestions for overcoming them. A qualitative design was adopted and data was gathered via in-depth interviews, focus group discussions (FGD), indirect observation, and secondary data analysis based on a purposive sample size of 60 respondents. Using the MAXQDA 10 program, data were analyzed using the thematic analysis technique. The study's findings showed that constraints to reducing were associated with a lack of innovation, professionals, an understanding of economics and finance and presence of extensive inventories, and inadequate production planning. Remanufacturing was further constrained by poor technology, unfavorable consumer attitudes, and a weak market strategy. Other constraints with reuse came from poor customer attitudes and awareness, lack of uniform standards for materials and goods, and inadequate government support. Constraints to recycling include a lack of support from senior top management executives, significant upfront expenses, and low-quality recycled goods. Therefore, to improve the situation, we suggest that industries make use of modernized equipment, and clean technology, improve monitoring and evaluation systems, implement the lean production philosophy, and give education about the value of recycling programs.
Keywords	Constraints ; Manufacturing Companies ; Green Manufacturing ; Social Sciences ; H
Subject code	670
Language	English
Publishing date	2022-11-01T00:00:00Z
Publisher	Ümit Hacıoğlu
Document type	Article ; Online
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Article: The configurational effects of task-technology fit, technology-induced engagement and motivation on learning performance during Covid-19 pandemic: An fsQCA approach.

Elçi, Alev / Abubakar, A Mohammed

Education and information technologies

2021 Volume 26, Issue 6, Page(s) 7259–7277

Abstract: At the onset of 2020, Covid-19 pandemic began and disrupted teaching and learning activities with substantial implications for resources and operations. Against this backdrop, the configural causal effects of task-technology fit, technology-induced ... ...

Abstract	At the onset of 2020, Covid-19 pandemic began and disrupted teaching and learning activities with substantial implications for resources and operations. Against this backdrop, the configural causal effects of task-technology fit, technology-induced engagement and motivation, gender, and residential location on learning performance are examined. The proposed association was tested with a dyad sample of faculty members and students (n = 16) using fuzzy sets (fsQCA) analysis. Results show that (i) task-technology fit, and technology-induced motivation emerge as necessary conditions for high learning performance; (ii) task-technology fit, technology-induced engagement and motivation are sufficient conditions for high learning performance among female students, (iii) task-technology fit, technology-induced engagement and motivation are sufficient conditions for high learning performance among students living in urban areas and (iv) task-technology fit is a sufficient condition for high learning performance among female students living in rural areas irrespective of technology-induced engagement and motivation. Implications for theory and policy prescriptions are offered for practitioners.
Language	English
Publishing date	2021-05-19
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	2001930-0
ISSN	1573-7608 ; 1360-2357
ISSN (online)	1573-7608
ISSN	1360-2357
DOI	10.1007/s10639-021-10580-6
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Article ; Online: FIRST CARDIAC COMPUTED TOMOGRAPHY TYPICAL RADIATION DOSE VALUES FROM A SINGLE CENTRE IN NIGERIA: A PILOT STUDY.

Garba, I / Fatima, A M / Mansur, Y / Ismail, A / Abubakar, A

Radiation protection dosimetry

2022 Volume 198, Issue 7, Page(s) 434–439

Abstract: Concern regarding radiation dose associated with cardiac computed tomography (CT) still exists and requires the use of diagnostic reference levels for dose optimisation. Typical median doses were established for 58 consented adult patients from a single ... ...

Abstract	Concern regarding radiation dose associated with cardiac computed tomography (CT) still exists and requires the use of diagnostic reference levels for dose optimisation. Typical median doses were established for 58 consented adult patients from a single centre for coronary artery calcium score (CACS) as volume computed tomography dose index (CTDIvol): 5.9 mGy; dose length product (DLP): 86.6 mGycm and cardiac CT angiography (CCTA) as CTDIvol: 11.1 mGy; DLP: 190.8 mGycm. Wide radiation dose variability in terms of CTDIvol was noted for CACS: 2.7-15.9 mGy, a 6-fold, whereas for CCTA it ranges from 3.8 to 52.8 mGy, a 14-fold. The DLP values for CACS range from 33.2 to 344.2 mGycm, which is 10-fold, whereas for CCTA it ranges from 32.8 to 834.9 mGycm, a 25-fold. The typical values compared lower than the radiation dose from other countries; however, the wide variability in dose remains a call for concern.
MeSH term(s)	Adult ; Computed Tomography Angiography ; Humans ; Nigeria ; Pilot Projects ; Radiation Dosage ; Reference Values ; Tomography, X-Ray Computed
Language	English
Publishing date	2022-05-31
Publishing country	England
Document type	Journal Article
ZDB-ID	225912-6
ISSN	1742-3406 ; 0144-8420
ISSN (online)	1742-3406
ISSN	0144-8420
DOI	10.1093/rpd/ncac073
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Article ; Online: Three Dimensional Microwave Data Inversion in Feature Space for Stroke Imaging.

Guo, Rui / Lin, Zhichao / Xin, Jingyu / Li, Maokun / Yang, Fan / Xu, Shenheng / Abubakar, Aria

IEEE transactions on medical imaging

2024 Volume 43, Issue 4, Page(s) 1365–1376

Abstract: Microwave imaging is a promising method for early diagnosing and monitoring brain strokes. It is portable, non-invasive, and safe to the human body. Conventional techniques solve for unknown electrical properties represented as pixels or voxels, but ... ...

Abstract	Microwave imaging is a promising method for early diagnosing and monitoring brain strokes. It is portable, non-invasive, and safe to the human body. Conventional techniques solve for unknown electrical properties represented as pixels or voxels, but often result in inadequate structural information and high computational costs. We propose to reconstruct the three dimensional (3D) electrical properties of the human brain in a feature space, where the unknowns are latent codes of a variational autoencoder (VAE). The decoder of the VAE, with prior knowledge of the brain, acts as a module of data inversion. The codes in the feature space are optimized by minimizing the misfit between measured and simulated data. A dataset of 3D heads characterized by permittivity and conductivity is constructed to train the VAE. Numerical examples show that our method increases structural similarity by 14% and speeds up the solution process by over 3 orders of magnitude using only 4.8% number of the unknowns compared to the voxel-based method. This high-resolution imaging of electrical properties leads to more accurate stroke diagnosis and offers new insights into the study of the human brain.
MeSH term(s)	Humans ; Microwaves ; Imaging, Three-Dimensional/methods ; Stroke/diagnostic imaging ; Brain/diagnostic imaging ; Electric Conductivity
Language	English
Publishing date	2024-04-03
Publishing country	United States
Document type	Journal Article
ZDB-ID	622531-7
ISSN	1558-254X ; 0278-0062
ISSN (online)	1558-254X
ISSN	0278-0062
DOI	10.1109/TMI.2023.3336788
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Article ; Online: Prevalence and Factors Associated With Frailty Among Older Adults Living With HIV Compared to Their Uninfected Peers From the Kenyan Coast.

Mwangala, Patrick N / Nasambu, Carophine / Wagner, Ryan G / Newton, Charles R / Abubakar, Amina

International journal of public health

2024 Volume 69, Page(s) 1606284

Abstract: Objectives: ...

Abstract	Objectives:
MeSH term(s)	Humans ; Male ; Aged ; Female ; Frailty/epidemiology ; Kenya/epidemiology ; Prevalence ; Cross-Sectional Studies ; HIV Infections/epidemiology ; Frail Elderly
Language	English
Publishing date	2024-02-15
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2274130-6
ISSN	1661-8564 ; 1661-8556
ISSN (online)	1661-8564
ISSN	1661-8556
DOI	10.3389/ijph.2024.1606284
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Article ; Online: Rapid response teams in the Eastern Mediterranean Region: Results from the baseline survey of country-level capacities, operations and outbreak response capabilities.

Elnosserry, Sherein / Buliva, Evans / Abdalla Elkholy, Amgad / Mahboob, Amira / Fazaludeen Koya, Shaffi / Abubakar, Abdinasir

Global public health

2024 Volume 19, Issue 1, Page(s) 2341404

Abstract: The aim of this study is to assess WHO/Eastern Mediterranean region (WHO/EMR) countries capacities, operations and outbreak response capabilities. Cross-sectional study was conducted targeting 22 WHO/EMR countries from May to June 2021. The survey covers ...

Abstract	The aim of this study is to assess WHO/Eastern Mediterranean region (WHO/EMR) countries capacities, operations and outbreak response capabilities. Cross-sectional study was conducted targeting 22 WHO/EMR countries from May to June 2021. The survey covers 8 domains related to 15 milstones and key performance indicators (KPIs) for RRT. Responses were received from 14 countries. RRTs are adequately organised in 9 countries (64.3%). The mean retention rate of RRT members was 85.5% ± 22.6. Eight countries (57.1%) reported having standard operating procedures, but only three countries (21.4%) reported an established mechanism of operational fund allocation. In the last 6 months, 10,462 (81.9%) alerts were verified during the first 24 h. Outbreak response was completed by the submission of final RRT response reports in 75% of analysed outbreaks. Risk Communication and Community Engagement (RCCE) activities were part of the interventional response in 59.5% of recent outbreaks. Four countries (28.6%) reported an adequate system to assess RRTs operations. The baseline data highlights four areas to focus on: developing and maintaining the multidisciplinary nature of RRTs through training, adequate financing and timely release of funds, capacity and system building for implementing interventions, for instance, RCCE, and establishing national monitoring and evaluation systems for outbreak response.
MeSH term(s)	Humans ; Hospital Rapid Response Team ; Cross-Sectional Studies ; Disease Outbreaks/prevention & control ; Surveys and Questionnaires ; Mediterranean Region/epidemiology
Language	English
Publishing date	2024-04-17
Publishing country	England
Document type	Journal Article
ZDB-ID	2234129-8
ISSN	1744-1706 ; 1744-1706
ISSN (online)	1744-1706
ISSN	1744-1706
DOI	10.1080/17441692.2024.2341404
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Article: Turning crisis into opportunity: sustaining COVID-19 gains in resource-constrained and fragile settings.

Haji-Jama, Sundus / Moen, Ann / Khan, Wasiq / Abubakar, Abdinasir / Brennan, Richard

BMJ global health

2024 Volume 9, Issue 3

MeSH term(s)	Humans ; COVID-19 ; SARS-CoV-2
Language	English
Publishing date	2024-03-28
Publishing country	England
Document type	Journal Article
ISSN	2059-7908
ISSN	2059-7908
DOI	10.1136/bmjgh-2024-015048
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