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Retraction Note: TiO_(2) nanoparticles' effects on properties of concrete using ground granulated blast furnace slag as binder

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Science China(Technological Sciences) 2021年第9期64卷 2066-2066页

作者： NAZARI Ali RIAHI shadi Department of Materials Science and Engineering Saveh BranchIslamic Azad UniversitySavehIran

Retraction to:Science China Technological Sciences, 2011, 54:3109–3118https://***/10.1007/s11431-011-4421-1The Journal Editorial Office has retracted this article because it significantly overlaps with a number of ar... 详细信息

关键词： overlap ground furnace

Reversible cerebral vasoconstriction syndrome presenting as an isolated primary intraventricular hemorrhage

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Chinese Neurosurgical Journal 2018年第4期4卷 239-242页

作者： Katarina Dakay Ryan A.McTaggart Mahesh V.Jayaraman shadi Yaghi Linda C.Wendell Department of Neurology Rhode Island Hospital/The Warren Alpert Medical School of Brown UniversityProvidenceRIUSA Departments of Radiology Neurologyand NeurosurgeryRhode Island Hospital/The Warren Alpert Medical School of Brown UniversityProvidenceRIUSA Department of Neurology Neurosurgery and Medical EducationRhode Island Hospital/The Warren Alpert Medical School of Brown University593 Eddy St APC 712ProvidenceRI 02903USA

Background: Primary intraventricular hemorrhage is an uncommon cause of stroke and is often associated with longstanding, uncontrolled hypertension. Reversible cerebral vasoconstriction is also an uncommon condition characterized by reversible constriction of intracerebral vessels, which can lead to ischemic or hemorrhagic strokes. Case presentation: We describe a case of isolated primary intraventricular hemorrhage secondary to reversible cerebral vasoconstriction syndrome triggered by pseudoephedrine. Conclusions: Reversible cerebral vasoconstriction syndrome is a rare cause of primary intraventricular hemorrhage and should be considered in the differential in angiography-negative IVH when there is a history of vasoactive substance use.

关键词： Reversible cerebral vasoconstriction syndrome Pseudoephedrine Primary intraventricular hemorrhage

Evaluation of a point of care ultrasound curriculum for Indonesian physicians taught by fi rst-year medical students

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World Journal of Emergency Medicine 2017年第4期8卷 281-286页

作者： Jonathan B.Lee Christina Tse Thomas Keown Michael Louthan Christopher Gabriel Alexander Anshus Bima Hasjim Katrina Lee Esther Kim Luke Yu Allen Yu shadi Lahham Steven Bunch Maili Alvarado Abdulatif Gari John C.Fox School of Medicine University of CaliforniaIrvineUSA Department of Emergency Medicine University of CaliforniaIrvineOrangeCalifornia 92868USA

BACKGROUND: The purpose of this study was to assess the short-term efficacy of a 4-week ultrasound curriculum taught by American first-year medical students to general practitioners working in public health care clinics, or puskesmas, in Bandung, ***: We performed a prospective, observational study of Indonesian health care practitioners from public clinics in Bandung, Indonesia. These practitioners were enrolled in a 4-week ultrasound training course taught by first-year American medical students. A total of six sessions were held comprising of 38 ultrasound milestones. A pre-course and post-course written exam and practical exam was taken by each ***: We enrolled 41 clinicians in the course. The average pre-course exam score was 35.2% with a 2.4% pass rate, whereas the average post-course exam score was 82.0% with a 92.7% pass rate. The average practical score at the completion of the course was 83.2%(SD=0.145) with 82.9% of the class passing(score above 75.0%).CONCLUSION: Our data suggests that first-year medical students can effectively teach ultrasound to physicians in Indonesia using a 4-week intensive ultrasound training course. Future studies are needed to determine the amount of training required for proficiency and to evaluate the physicians' perceptions of the student-instructors' depth of knowledge and skill in point of care ultrasound.

关键词： Ultrasound education Ultrasound teaching Indonesia

Microwave Assisted Peptide Synthesis as a New Gold Standard in Solid Phase Peptide Synthesis: Phospholamban as an Example

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Open Journal of Synthesis Theory and Applications 2014年第1期3卷 1-4页

作者： shadi Abu-Baker Philip Garber Bryce Hina Trevor Reed Ghaffari Shahrokh Mohannad Al-Saghir Gary Lorigan College of Arts and Sciences Ohio University Zanesville USA College of Arts and Sciences Ohio University Zanesville USA Genesis Hospital Ohio University Zanesville USA Department of Chemistry and Biochemistry Miami University Oxford USA

In this study, we report the microwave assisted synthesis of Phospholamban protein (WT-PLB) as a new gold standard in solid phase peptide synthesis. Microwave energy offers benefits for both the coupling and deprotection reactions during peptide synthesis. The use of microwave energy for both the coupling and deprotection steps makes the microwave peptide synthesizers the most versatile and powerful systems available. It produces high yield and fast synthesis when compared to conventional peptide synthesizers.

关键词： Solid-State Peptide Synthesis Phospholamban Microwave Assisted Synthesis

Ultrasound curriculum taught by first-year medical students： A four-year experience in Tanzania

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World Journal of Emergency Medicine 2018年第1期9卷 33-40页

作者： Scan P. Denny William B. Mintccr Rcccc T.H. Fcnning Sahil Aggarwal Dcbora H. Lee Shclla K. Raja Kaavya R. Raman Allison O. Farfcl Priya A. Patcl MarkLicbcr Mcgan E. Bcrnstcin shadi Lahham John C. Fox School of Medicine University of California Irvine Orange California 92868 USA Department of EmergencyMedicine University of California Irvine Orange California 92868 USA

BACKGROUND: Diagnostic imaging is an integral aspect of care that is often insufficient, if not altogether absent, in rural and remote regions of low to middle income countries(LMICs) such as Tanzania. The introduction of ultrasound can significantly impact treatment in these countries due to its portability, low cost, safety, and usefulness in various medical assessments. This study reviews the implementation of a four-week ultrasound course administered annually from 2013–2016 in a healthcare professional school in Mwanza, Tanzania by first-year allopathic US medical ***: Participants(n=582, over 4 years) were recruited from the Tandabui Institute of Health Sciences and Technology to take the ultrasound course. Subjects were predominantly clinical officer students, but other participants included other healthcare professional students, practicing healthcare professionals, and school employees. Data collected includes pre-course examination scores, post-course examination scores, course quiz scores, demographic surveys, and postcourse feedback surveys. Data was analyzed using two-tailed t-tests and the single factor analysis of variance(ANOVA).RESULTS: For all participants who completed both the pre-and post-course examinations(n=229, 39.1% of the total recruited), there was a significant mean improvement in their ultrasound knowledge of 42.5%, P<***: Our data suggests that trained first-year medical students can effectively teach a point of care ultrasound course to healthcare professional students within four weeks in Tanzania. Future investigation into the level of long-term knowledge retention, impact of ultrasound training on knowledge of human anatomy and diagnostic capabilities, and how expansion of an ultrasound curriculum has impacted access to care in rural Tanzania is warranted.

关键词： Point of care ultrasound Ultrasound education Tanzania

Causes and Stages of Hepatocellular Carcinoma at Patient Presentation at a Tertiary Medical Center in Western Saudi Arabia

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Journal of Cancer Therapy 2014年第14期5卷 1303-1310页

作者： shadi Alkhayyat Hind I. Fallatah Hisham O. Akbar Mahmoud S. Al Ahwal Waleed S. Al Ghamdi Oncology Unit Department of Internal Medicine King Abdul Aziz University Hospital Jeddah Saudi Arabia Hepatology Unit Department of Internal Medicine King Abdul Aziz University Hospital Jeddah Saudi Arabia

Background: With 748,300 new cases diagnosed every year, hepatocellular carcinoma (HCC) is the 5th?and the 7th?most common cancer among males and females, respectively, and causes 7% of all cancer-related deaths. HCC represents more than?90% of primary liver cancers. Objective: The aim of the present study was to recognize the stages of HCC at presentation in patients who were diagnosed at King Abdul Aziz University Hospital (KAUH) and to identify the associated laboratory features of advance HCC.?Materials and Methods: A retrospective analysis of 57 HCC patients admitted to KAUH between January 2008 and December 2012 was conducted. The diagnosis was established using ultrasound (U/S), computed tomography (CT) and/or magnetic resonance imaging (MRI), with or without a liver biopsy, as well as blood testing for alpha-fetoprotein.?The following data were extracted from the medical records at KAUH: patient demographics (age, sex and nationality), laboratory results (CBC, LFT, PT, INR and alpha-fetoprotein), radiological results, biopsy results for those patients who underwent biopsy, outcomes (living, deceased or lost from the follow-up), and mortality and survival rates. Results: A total of 57 HCC patients were admitted during the study period, and 3 patients were excluded from the analysis. Of the remaining 54 patients, 44 (81.5%) were males and 10 (18.5%) were females. The mean age was 64.54 years (SD, 11.2 years;range, 31?-?86 years). The majority of patients were Saudis (19, 35.2%), non-Saudis (35, 64.8%), Egyptians (9, 16.6%) and Yemenis (7, 13%). The remaining 19 (35.2%) patients comprised other nationalities. Chronic hepatitis C virus was the most common cause for liver cirrhosis (35 patients, 64.8%). CT was the primary diagnostic method (37 patients 68.5%), while 9 (16.7%) cases were confirmed by adnominal MRI. Six patients (11.1%) were diagnosed with abdominal ultrasound examination and elevated alpha-fetoprotein levels. In 2 (3.7%) patients, HCC was confirme

关键词： Hepatocellular Carcinoma (HCC) Chronic Hepatitis B (CHB) Chronic Hepatitis C (CHC) Radio Frequency Ablation (RFA) Sorafenib Saudi Arabia

Comparison of ultrasound-measured properties of the common carotid artery to tobacco smoke exposure in a cohort of Indonesian patients

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World Journal of Emergency Medicine 2017年第3期8卷 177-183页

作者： Allen R.Yu Bima Hasjim Luke E.Yu Christopher Gabriel Alexander Anshus Jonathan B.Lee Michael J. Louthan Esther C.Kim Katrina Lee Christina Tse Thomas Keown shadi Lahham Maili Alvarado Steven Bunch Abdulatif Gari J.Christian Fox School of Medicine University of California Department of Emergency Medicine University of California

BACKGROUND: The purpose of this study was to use point-of-care ultrasound(POCUS) to investigate the relationship between tobacco smoke exposure and the characteristics of the common carotid artery(CCA). The effect of both primary and secondary smoking on CCA properties was ***: We performed a prospective cross-sectional study across 20 primary care clinics in Bandung, West Java, Indonesia in July 2016. Point of care ultrasound was performed on a convenience sample of Indonesian patients presenting to clinic. The CCA wall stiffness and carotid intima-media thickness(CIMT) were measured during diastole and systole. These measurements were correlated with smoke exposure and cardiovascular ***: We enrolled 663 patients in the study, with 426 patients enrolled in the smoking category and 237 patients enrolled in the second-hand smoke category. There was an overall positive correlation with the measured lifestyle factors and the ultrasound-measured variables in the group of individuals who smoked. For all variables, age seemed to contribute the most out of all of the lifestyle factors for the positive changes in CIMT and CCA wall ***: Our data yielded correlations between CCA properties and cardiovascular risk, as well as between CIMT and arterial stiffness. We were also able to demonstrate an increase in thickness of the CIMT in patients who have been exposed by tobacco through the use of ultrasound. Further large scale studies comparing patients with multiple cardiac risk factors need to be performed to confi rm the utility of ultrasound fi ndings of cardiovascular disease and stroke.

关键词： Carotid artery thickness Point of care ultrasound Indonesia Intimal thickness

基于LabVIEW的数字超声波检测实验系统

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军民两用技术与产品 2007年第12期 37-39页

作者：赵洪波白基成周正干冯占英 shadi Elhalabi 北京航空航天大学机械工程及自动化学院北京100083

为了更加快速有效地实现对超声波信号的采集分析、降低对复杂超声波信号的处理难度,介绍了LabVIEW编程语言的特点,设计了一个基于LabVIEW的超声波检测实验系统。该系统可以实现外触发模式下的连续数据采集、实时信号处理、波形的频域和... 详细信息

为了更加快速有效地实现对超声波信号的采集分析、降低对复杂超声波信号的处理难度,介绍了LabVIEW编程语言的特点,设计了一个基于LabVIEW的超声波检测实验系统。该系统可以实现外触发模式下的连续数据采集、实时信号处理、波形的频域和时域显示、数据的实时存储、电子门及门内主要信息的提取和显示,从而具备了A扫描和C扫描功能。超声波检测实验验证了该系统工作的可行性和结果的正确性。

关键词：无损检测超声波 LabVIEW 信号分析

Procedural simulation:medical student preference and value of three task trainers for ultrasound guided regional anesthesia

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World Journal of Emergency Medicine 2017年第4期8卷 287-291页

作者： shadi Lahham Taylaur Smith Jessa Baker Amanda Purdy Erica Frumin Bret Winners Sean P.Wilson Abdulatif Gari John C.Fox Department of Emergency Medicine University of CaliforniaIrvineOrangeCalifornia 92868USA UC Irvine School of Medicine IrvineCaliforniaUSA

BACKGROUND: Ultrasound guided regional anesthesia is widely taught using task trainer models. Commercially available models are often used; however, they can be cost prohibitive. Therefore, alternative "homemade" models with similar fidelity are often used. We hypothesize that professional task trainers will be preferred over homemade models. The purpose of this study is to determine realism, durability and cleanliness of three different task trainers for ultrasound guided nerve ***: This was a prospective observational study using a convenience sample of medical student participants in an ultrasound guided nerve block training session on January 24 th, 2015. Participants were asked to perform simulated nerve blocks on three different task trainers including, 1 commercial and 2 homemade. A questionnaire was then given to all participants to rate their experiences both with and without the knowledge on the cost of the simulator ***: Data was collected from 25 participants. The Blue Phantom model was found to have the highest fidelity. Initially, 10(40%) of the participants preferred the Blue Phantom model, while 10(40%) preferred the homemade gelatin model and 5(20%) preferred the homemade tofu model. After cost awareness, the majority, 18(72%) preferred the gelatin ***: The Blue Phantom model was thought to have the highest fidelity, but after cost consideration the homemade gelatin model was preferred.

关键词： Ultrasound guided nerve block Task trainer Regional anesthesia