检索结果-南通市图书馆

Choroidal thickness measurements in young Saudi adult population: a cross-sectional study

International Journal of Ophthalmology(English edition) 2023年第11期16卷 1814-1819页

作者： mohammed m Althomali Ahmed A Alharbi Nouf m Albnayan abdulaziz m alkhudhair muteb K Alanazi Optometry Department College of Applied Medical SciencesKing Saud UniversityRiyadh 11362Saudi Arabia

AIm:To determine the choroidal thickness(CT)in young healthy Saudi adults using spectral-domain optical coherence tomography(SD-OCT)with an automated CT segmentation ***:Fifty-eight young adults(total of 116 eyes),39 males and 19 females participated in this study between the ages of 18 and 38y(mean 22.65±3.9y).All participants underwent ophthalmic screening examination,including the SD-OCT for measurements of CT in each quadrant egmented into five eccentric regions starting from the foveal region up to 4.5 mm towards the ***:The choroid was thickest in the foveal region(central 1 mm,300±60μm)and began to progressively thinner beyond the parafovea(1.5–2.5 mm,284±67μm)towards the peripheral region(3.5–4.5 mm from the fovea,254±83μm).The superior choroid showed the thickest profile(309±57μm),while the nasal choroid exhibited the thinnest(229±76μm).The rate of the thinning with increasing eccentricity was more predominant in the nasal choroid,which thinned from the foveal region(294±58μm)to the peripheral region(158±55μm).The superior and inferior choroid did not show a statistically significant thinning with eccentricity(all P>0.05).There was no statistically significant difference in the CT between gender,age,and laterality of the eyes(all P>0.05).A significant association of myopia with thinner subfoveal choroid was observed(Pearson’s,r=0.37),and regression analysis showed that a 10.3μm choroidal thinning for each diopter increase of ***:CT profile depends on eccentric and the *** CT profile across the measured area in the young Saudi adult population is comparable to other previous *** error is critical for CT evaluation.

关键词： choroidal thickness optical coherence tomography young adults Saudi population

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Fuzzy Difference Equations in Diagnoses of Glaucoma from Retinal Images Using Deep Learning

引用

Computer modeling in Engineering & Sciences 2024年第4期139卷 801-816页

作者： D.Dorathy Prema Kavitha L.Francis Raj Sandeep Kautish abdulaziz S.Almazyad Karam m.Sallam Ali Wagdy mohamed Department of mathematics Voorhees CollegeVelloreTamil NaduIndia Chandigarh Group of Colleges JhanjeriMohaliPunjabIndia Department of Computer Engineering College of Computer and Information SciencesKing Saud UniversityP.O.Box 51178Riyadh11543Saudi Arabia Faculty of Science and Technology School of IT and SystemsUniversity of CanberraCanberraAustralia Operations Research Department Faculty of Graduate Studies for Statistical ResearchCairo UniversityGiza12613Egypt Applied Science Research Center Applied Science Private UniversityAmman11937Jordan

The intuitive fuzzy set has found important application in decision-making and machine *** enrich and utilize the intuitive fuzzy set,this study designed and developed a deep neural network-based glaucoma eye detection using fuzzy difference equations in the domain where the retinal images *** image detections are categorized as normal eye recognition,suspected glaucomatous eye recognition,and glaucomatous eye *** degrees associated with weighted values are calculated to determine the level of concentration between the fuzzy partition and the retinal *** proposed model was used to diagnose glaucoma using retinal images and involved utilizing the Convolutional Neural Network(CNN)and deep learning to identify the fuzzy weighted regularization between *** methodology was used to clarify the input images and make them adequate for the process of glaucoma *** objective of this study was to propose a novel approach to the early diagnosis of glaucoma using the Fuzzy Expert System(FES)and Fuzzy differential equation(FDE).The intensities of the different regions in the images and their respective peak levels were *** the peak regions were identified,the recurrence relationships among those peaks were then *** partitioning was done due to varying degrees of similar and dissimilar concentrations in the *** and dissimilar concentration levels and spatial frequency generated a threshold image from the combined fuzzy matrix and *** distinguished between a normal and abnormal eye condition,thus detecting patients with glaucomatous eyes.

关键词： Convolutional Neural Network(CNN) glaucomatous eyes fuzzy difference equation intuitive fuzzy sets image segmentation retinal images

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neglected congenital bilateral knee dislocation treated by quadricepsplasty with semitendinosus and sartorius transfer:A case report

引用

World Journal of Orthopedics 2024年第8期15卷 807-812页

作者： Osama m Qasim abdulaziz A abdulaziz Nibras K Aljabri Khalid S Albaqami Rayan m Suqaty College of medicine Umm Al-Qura UniversityMecca 21955Makkah al MukarramahSaudi Arabia Department of Orthopedic King Faisal Medical Complex TaifTaif 26514TaifSaudi Arabia Department of Orthopedic Alnoor Specialist HospitalMecca 24241Makkah al MukarramahSaudi Arabia

BACKGROUND Congenital knee dislocation(CKD)is a rare condition,which accounts for 1%of congenital hip *** can present as an isolated condition or coexist with other genetic *** options include serial casting,percutaneous quadriceps recession,and V-Y quadricepsplasty(VYQ).The pathogenesis and hereditary patterns of CKD are not fully understood,with most cases being *** is usually managed immediately after ***,in this report,the patient was neglected for 2 *** SUmmARY A 2-year-old girl with bilateral CKD after birth presented to our hospital after failed serial casting;the patient had seizures and limited access to healthcare because of her family’s low socioeconomic *** birth was noted for a breech presentation accompanied by *** delivery took a long time,requiring immediate medical *** an infant,she had chronic diseases,including a small patent ductus arteriole,multicystic dysplastic kidney disease,and *** was found to have a bilateral knee dislocation of approximately-90°on hyperextension.A multidisciplinary team was involved,and medical care was *** underwent VYQ plus semitendinosus and sartorius *** four postoperative follow-ups,her knees were regaining mobility,and she could walk for 2-3 steps without *** This report highlights the importance of early intervention and recommends extensive studies of the management in similar cases.

关键词： Knee dislocation Congenital knee dislocation V-Y quadricepsplasty Neglect Neglected knee dislocation Pediatric orthopedics Case report

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Robust Facial Biometric Authentication System Using Pupillary Light Reflex for Liveness Detection of Facial Images

引用

Computer modeling in Engineering & Sciences 2024年第4期139卷 725-739页

作者： Puja S.Prasad Adepu Sree Lakshmi Sandeep Kautish Simar Preet Singh Rajesh Kumar Shrivastava abdulaziz S.Almazyad Hossam m.Zawbaa Ali Wagdy mohamed CSE Department Geethanjali College of EngineeringHyderabadTelangana501301India Department of Computer Science LBEF CampusKathmandu44600Nepal School of Computer Science Engineering and Technology(SCSET) Bennett UniversityGreater Noida201310India Department of Computer Engineering College of Computer and Information SciencesKing Saud UniversityP.O.Box 51178Riyadh11543Saudi Arabia CeADAR Ireland’s Centre for AI Technological University DublinDublinD07 EWV4Ireland Operations Research Department Faculty of Graduate Studies for Statistical ResearchCairo UniversityGiza12613Egypt Applied Science Research Center Applied Science Private UniversityAmman11937Jordan

Pupil dynamics are the important characteristics of face spoofing *** face recognition system is one of the most used biometrics for authenticating individual *** main threats to the facial recognition system are different types of presentation attacks like print attacks,3D mask attacks,replay attacks,*** proposed model uses pupil characteristics for liveness detection during the authentication *** pupillary light reflex is an involuntary reaction controlling the pupil’s diameter at different light *** proposed framework consists of two-phase *** the first phase,the pupil’s diameter is calculated by applying stimulus(light)in one eye of the subject and calculating the constriction of the pupil size on both eyes in different video *** above measurement is converted into feature space using Kohn and Clynes model-defined *** Support Vector machine is used to classify legitimate subjects when the diameter change is normal(or when the eye is alive)or illegitimate subjects when there is no change or abnormal oscillations of pupil behavior due to the presence of printed photograph,video,or 3D mask of the subject in front of the *** the second phase,we perform the facial recognition ***-invariant feature transform(SIFT)is used to find the features from the facial images,with each feature having a size of a 128-dimensional *** features are scale,rotation,and orientation invariant and are used for recognizing facial *** brute force matching algorithm is used for matching features of two different *** threshold value we considered is 0.08 for good *** analyze the performance of the framework,we tested our model in two Face antispoofing datasets named Replay attack datasets and CASIA-SURF datasets,which were used because they contain the videos of the subjects in each sample having three modalities(RGB,IR,Depth).The CASIA-SURF datasets showed an 89.9%Equal Err

关键词： SIFT pupil CASIA-SURF pupillary light reflex replay attack dataset brute force

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

mental health status among COVID-19 patients survivors of critical illness in Saudi Arabia:A 6-month follow-up questionnaire study

引用

World Journal of Clinical Cases 2024年第15期12卷 2560-2567页

作者： Abdullah m Alhammad Namareq F Aldardeer abdulaziz Alqahtani mohammad H Aljawadi Bushra Alnefaie Raghad Alonazi mansour Almuqbil Abdulrahman Alsaadon Rakan m Alqahtani Rashid Alballaa Bader Alshehri mohammed I Alarifi Fahad D Alosaimi Department of Clinical Pharmacy College of PharmacyKing Saud UniversityRiyadh 12372Saudi Arabia Department of Pharmacy Services King Faisal Specialist Hospital and Research CentreJeddah 21499Saudi Arabia Corporate Department of Pharmacy Services King Saud University Medical CityRiyadh 12372Saudi Arabia College of Pharmacy King Saud UniversityRiyadh 12372Saudi Arabia Department of Critical Care medicine College of MedicineKing Saud UniversityRiyadh 12372Saudi Arabia Department of Psychiatry College of MedicineKing Saud UniversityRiyadh 12372Saudi Arabia

BACKGROUND Psychological assessment after intensive care unit(ICU)discharge is increasingly used to assess patients'cognitive and psychological ***,few studies have examined those who recovered from coronavirus disease 2019(COVID-19).There is a paucity of data from the middle East assessing the post-ICU discharge mental health status of patients who had *** To evaluate anxiety and depression among patients who had severe *** This is a prospective single-center follow-up questionnaire-based study of adults who were admitted to the ICU or under ICU consultation for>24 h for *** patients were contacted via *** patient’s anxiety and depression six months after ICU discharge were assessed using the Hospital Anxiety and Depression Scale(HADS).The primary outcome was the mean HADS *** secondary outcomes were risk factors of anxiety and/or *** Patients who were admitted to the ICU because of COVID-19 were screened(n=518).Of these,48 completed the *** mean age was 56.3±17.2 *** patients(62.5%)were *** main comorbidities were endocrine(n=24,50%)and cardiovascular(n=21,43.8%)*** mean overall HADS score for anxiety and depression at 6 months post-ICU discharge was 11.4(SD±8.5).A HADS score of>7 for anxiety and depression was detected in 15 patients(30%)and 18 patients(36%),*** from the multivariable ordered logistic regression demonstrated that vasopressor use was associated with the development of anxiety and depression[odds ratio(OR)39.06,95% confidence interval:1.309-1165.8;Pmonths after ICU discharge,30% of patients who had COVID-19 demonstrated a HADS score that confirmed anxiety and *** compare the psychological status of patients following an ICU admission(with vs without COVID-19),further studies are warranted.

关键词： COVID-19 Critically ill Anxiety Depression HADS Saudi Arabia

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Hybrid IPOm: A Novel Technique for the management of Incisional Hernia

引用

Surgical Science 2024年第3期15卷 125-134页

作者： Syed Asim Yamin Shahnawaz Ahangar Fadi Albadawi Abdullah Alqarni abdulaziz m. Alzahrani Department of Specialised Surgery King Abdullah Medical City Hospital Makkah Saudi Arabia

Background and Aim: The incidence of incisional hernias has been reported to be around 15%. In the present scenario, a wide array of surgical procedures are available for their better management. In this study, we intend to share our experience with one novel technique, “Hybrid IPOm (Intraperitoneal onlay meshplasty)” as a management option for a selected cohort of patients. methods: This prospective study was undertaken during January 2019 to July 2023 at King Abdullah medical city, makkah. A total of 51 cases were selected for Hybrid IPOm repair as per inclusion criteria;medium sized (4 - 10 cm) hernia defects;uncomplicated hernias;age more than 18 years. The follow-up period of the patients varied from 6 months to 4 years. The operation commenced with open hernia dissection, mesh deployment into abdomen, defect closure and then conversion to laparoscopy for the posterior mesh placement. Results: A total of 51 cases were repaired successfully with this technique. 48 out of 51 cases were incisional hernias secondary to some primary procedure done either for hernias itself or some other intra-abdominal pathology. The three cases were primary hernias falling in medium to large category with unaesthetic overlying skin. The age range was 19 to 72 years. The mean (range) operative time was 135 (90 - 240) min, and the average blood loss was 70 ml. The mean (range) hospital stay was 3 (2 - 11) days. All patients returned to routine work within 2 - 3 weeks of surgery. The median follow-up was 15 (6 - 48) months. Of the 51 cases, 3 patients developed seroma (managed conservatively), 1 patient developed a large hematoma (needed evacuation), and 1 patient developed superficial wound infection (managed with antibiotics). Two patients had recurrences;one patient had previously failed multiple repairs, and the other developed a postoperative hematoma. None of our patients had an iatrogenic bowel injury. Conclusion: Hybrid IPOm technique is a safe, feasible and easily reproducibl

关键词： Incisional Hernias Hybrid Surgery Open to Laparoscopic Conversion Safety Feasibility

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

石墨烯低温远红外辐射干燥稻谷干燥特性与品质研究

引用

农业机械学报 2024年第4期55卷 346-351,384页

作者：陈坤杰王硕颜建春 abdulaziz Nuhu Jibril 孙杰於海明南京农业大学工学院南京210031 盐城市沿海拖拉机制造有限公司盐城224007

为研究稻谷的石墨烯低温远红外干燥特性及其对稻谷干燥品质的影响,以辐射温度、排粮流量和除湿风量为影响因素,以整精米率和应力裂纹指数增值为评价指标,用自制的循环式石墨烯低温远红外干燥机进行稻谷干燥试验,通过BBD(Box-Behnken设计... 详细信息

为研究稻谷的石墨烯低温远红外干燥特性及其对稻谷干燥品质的影响,以辐射温度、排粮流量和除湿风量为影响因素,以整精米率和应力裂纹指数增值为评价指标,用自制的循环式石墨烯低温远红外干燥机进行稻谷干燥试验,通过BBD(Box-Behnken设计)响应面法,分析了低温远红外干燥对稻谷干燥品质的影响以及工艺参数优化。结果表明:影响稻谷干燥特性和品质的最主要因素是辐射温度,其次是排粮流量和除湿风量。随着辐射温度的升高,稻谷干燥速率和应力裂纹指数增值逐步增大,整精米率则逐步降低。与同温度的热风干燥相比,石墨烯低温远红外干燥平均干燥速率和干燥品质均有显著提高。经优化后,稻谷最佳石墨烯低温远红外干燥工艺条件为:辐射温度43℃、排粮流量4 kg/min、除湿风量193 m^(3)/h,此时应力裂纹指数增值为9,整精米率为79.75%,稻谷干燥品质最佳。这说明利用石墨烯低温远红外干燥稻谷,可以明显提高干燥速率并改善稻谷干燥品质。

关键词：稻谷石墨烯远红外辐射干燥热传导低温干燥

来源：

维普期刊数据库

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Bilateral Retinal Nerve Fiber Layer Loss and Recovery with Teprotumumab in Thyroid Eye Disease

引用

Open Journal of Ophthalmology 2024年第3期14卷 196-203页

作者： Christine Wang abdulaziz Alsumait Nikisha Q. Richards Surbhi Bansal Department of Ophthalmology Virginia Commonwealth University School of Medicine Richmond VA USA School of medicine Virginia Commonwealth University Richmond VA USA

Background: Thyroid Eye Disease (TED) is known to alter tissues of the orbital cavity, including the optic nerve. However, its effect on measured global Retinal Nerve Fiber Layer (gRNFL) is not well elucidated. This case evaluates the effect of teprotumumab on gRNFL in a patient with moderate TED. Observations: A 60-year-old female with controlled ocular hypertension and moderate TED received 8 standard IV teprotumumab infusions. Comprehensive ocular evaluations were performed pre-, during-, and post-treatment. Bilateral gRNFL thickness decreased (10 m OD;12 m OS) at 4 months post-treatment start, persisting at 8 months, but recovered at 20 months. Conclusions and Importance: Teprotumumab treatment in patients with TED led to a transient bilateral decrease in gRNFL thickness, which was restored to baseline levels with no adverse events reported. monitoring gRNFL changes in teprotumumab-treated patients is crucial as gRNFL thinning indicates retinal ganglion cell damage. Teprotumumabs ability to dampen the IGF-IR inflammatory cascade may have reduced retinal inflammation, leading to recovery.

关键词： Teprotumumab Thyroid Eye Disease RNFL Clinical Activity Score Ocular Hypertension

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

machine Learning Empowered Security and Privacy Architecture for IoT Networks with the Integration of Blockchain

引用

Intelligent Automation & Soft Computing 2024年第2期39卷 353-379页

作者： Sohaib Latif m.Saad Bin Ilyas Azhar Imran Hamad Ali Abosaq abdulaziz Alzubaidi Vincent Karovic Jr. Department of Computer Science The University of ChenabGujrat50700Pakistan Department of Creative Technologies Air UniversityIslamabad42000Pakistan Computer Science Department College of Computer Science and Information SystemsNajran UniversityNajran66244Saudi Arabia Department of Computer Science Umm Alqura UniversityAlQunfudah28821Saudi Arabia Department of Information Systems Faculty of ManagementComenius University in BratislavaBratislava82005Slovakia

The Internet of Things(IoT)is growing rapidly and impacting almost every aspect of our lives,fromwearables and healthcare to security,traffic management,and fleet management *** has generated massive volumes of data and security,and data privacy risks are increasing with the advancement of technology and network *** access control solutions are inadequate for establishing access control in IoT systems to provide data protection owing to their vulnerability to single-point OF ***,conventional privacy preservation methods have high latency costs and overhead for resource-constrained *** machine learning approaches were also unable to detect denial-of-service(DoS)*** study introduced a novel decentralized and secure framework for blockchain *** avoid single-point OF failure,an accredited access control scheme is incorporated,combining blockchain with local peers to record each transaction and verify the signature to ***-based attribute-based cryptography is implemented to protect data storage privacy by generating threshold parameters,managing keys,and revoking users on the *** innovative contract-based DOS attack mitigation method is also incorporated to effectively validate devices with intelligent contracts as trusted or untrusted,preventing the server from becoming *** proposed framework effectively controls access,safeguards data privacy,and reduces the risk of *** results depict that the suggested framework outperforms the results in terms of accuracy,precision,sensitivity,recall,and F-measure at 96.9%,98.43%,98.8%,98.43%,and 98.4%,respectively.

关键词： machine learning internet of things blockchain data privacy security Industry 4.0

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

石墨烯低温不同远红外干燥条件下稻谷干燥特性与品质研究

引用

农业机械学报 2024年

作者：陈坤杰王硕颜建春 abdulaziz NUHU JIBRIL 於海明孙杰盐城市盐海拖拉机制造有限公司南京农业大学工学院

为研究稻谷的石墨烯低温远红外干燥特性及其对稻谷干燥品质的影响，以辐射温度、排粮流量和除湿风量为影响因素，以干燥速率和应力裂纹指数增值为评价指标，用自制的循环式石墨烯低温远红外干燥机进行稻谷干燥试验，通过BBD(Box-Behnke... 详细信息

为研究稻谷的石墨烯低温远红外干燥特性及其对稻谷干燥品质的影响，以辐射温度、排粮流量和除湿风量为影响因素，以干燥速率和应力裂纹指数增值为评价指标，用自制的循环式石墨烯低温远红外干燥机进行稻谷干燥试验，通过BBD(Box-Behnken设计)响应面法，分析了低温远红外干燥对稻谷干燥品质的影响以及工艺参数优化。结果表明：影响稻谷干燥特性和品质的最主要因素是辐射温度，其次是排粮流量和除湿风量。随着辐射温度的升高，稻谷的干燥速率和应力裂纹指数增值逐步增大，整精米率则逐步降低。与同温度的热风干燥相比，石墨烯低温远红外干燥的平均干燥速率和干燥品质均有显著提高。经优化后，稻谷最佳石墨烯低温远红外干燥工艺条件为：辐射温度43℃、排粮流量4kg/min、除湿风量193m3/h，此时应力裂纹指数增值为9，整精米率为79.75%，稻谷干燥品质最佳。这说明利用石墨烯低温远红外干燥稻谷，可以明显提高干燥速率并改善稻谷干燥品质。

关键词：稻谷石墨烯远红外辐射热传导低温干燥

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：