التقنيات الرقمية لإحكام الجداول الزمنية لمشاريع التشييد تحليل مبنى على المراجعات الأدبية للإتجاهات والتحديات Digital Technologies to Enhance Construction Schedules Literature-based Analysis for Trends and Challenges

على الرغم من الجهود الكبيرة التي تبذلها الجهات الحكومية السعودية لتجنب تأخير وتعثر مشاريع التشييد، الا ان أغلب الدراسات المعاصرة أظهرت أنه مازال هناك نسبة كبيرة من المشاريع متأخرة ومتعثرة نتيجة لعوامل متعددة منها ضعف إعداد الجدول الزمني للمشروع، وذلك على الرغم من توافر العديد من التقنيات الرقمية التي يمكنها دعم تطوير وإحكام هذه الجداول لتحقيق أهداف المشاريع، وهو ما يمثل الإشكالية الرئيسية لهذه الدراسة التي تستهدف دراسة الإتجاهات المعاصرة للتقنيات الرقمية ذات العلاقة بالجداول الزمنية لمشاريع التشييد، والتحديات التي تواجه تطبيقها، والوصول إلى إطار لتوظيفها في إحكام الجداول الزمنية لمشاريع التشييد. ولتحقيق هذه الأهداف تبنت الدراسة المنهج البحثي الوصفي التحليلي اعتماداً على المراجعات الأدبية للإتجاهات والتحديات التي تواجه تطبيق هذه التقنيات. وناقشت الدراسة أربعة من الإتجاهات المعاصرة لإحكام الجداول الزمنية وثلاثة من أهم التحديات التي تواجهها وخلصت إلى إطار العمل المستهدف وعدد من النتائج والتوصيات المهمة لمعالجة إشكالية الدراسة ودعم جهود المملكة ورؤيتها تجاه التحول الرقمي واستخدام التقنيات الحديثة في جميع المجالات. Abstract: Despite the great efforts made by Saudi government to avoid construction projects delays, most contemporary studies have shown that the phenomena of construction projects delays are spread with high percentage due to multiple factors, including poor project schedules. With the availability of many digital technologies that could enhance these schedules to achieve projects’ objectives, this is considered the main problem of this research, aiming to study the contemporary trends of digital technologies related to construction schedules and the challenges facing their application to reach a framework to utilize its capabilities to enhance construction schedules. To achieve these goals, the study adopted the analytical descriptive method through an literature-based reviews of the related trends and challenges. The study discussed four of the contemporary trends to enhance schedules and three of the most important challenges they face during application, and concluded the target framework and a number of important results and recommendations to handle the research problem and support the Kingdom\u27s efforts and vision towards digital transformation and the use of modern technologies in all fields

التقنيات الرقمية لإحكام الجداول الزمنية لمشاريع التشييد تحليل مبنى على المراجعات الأدبية للإتجاهات والتحديات Digital Technologies to Enhance Construction Schedules Literature-based Analysis for Trends and Challenges

على الرغم من الجهود الكبيرة التي تبذلها الجهات الحكومية السعودية لتجنب تأخير وتعثر مشاريع التشييد، الا ان أغلب الدراسات المعاصرة أظهرت أنه مازال هناك نسبة كبيرة من المشاريع متأخرة ومتعثرة نتيجة لعوامل متعددة منها ضعف إعداد الجدول الزمني للمشروع، وذلك على الرغم من توافر العديد من التقنيات الرقمية التي يمكنها دعم تطوير وإحكام هذه الجداول لتحقيق أهداف المشاريع، وهو ما يمثل الإشكالية الرئيسية لهذه الدراسة التي تستهدف دراسة الإتجاهات المعاصرة للتقنيات الرقمية ذات العلاقة بالجداول الزمنية لمشاريع التشييد، والتحديات التي تواجه تطبيقها، والوصول إلى إطار لتوظيفها في إحكام الجداول الزمنية لمشاريع التشييد. ولتحقيق هذه الأهداف تبنت الدراسة المنهج البحثي الوصفي التحليلي اعتماداً على المراجعات الأدبية للإتجاهات والتحديات التي تواجه تطبيق هذه التقنيات. وناقشت الدراسة أربعة من الإتجاهات المعاصرة لإحكام الجداول الزمنية وثلاثة من أهم التحديات التي تواجهها وخلصت إلى إطار العمل المستهدف وعدد من النتائج والتوصيات المهمة لمعالجة إشكالية الدراسة ودعم جهود المملكة ورؤيتها تجاه التحول الرقمي واستخدام التقنيات الحديثة في جميع المجالات. Abstract: Despite the great efforts made by Saudi government to avoid construction projects delays, most contemporary studies have shown that the phenomena of construction projects delays are spread with high percentage due to multiple factors, including poor project schedules. With the availability of many digital technologies that could enhance these schedules to achieve projects’ objectives, this is considered the main problem of this research, aiming to study the contemporary trends of digital technologies related to construction schedules and the challenges facing their application to reach a framework to utilize its capabilities to enhance construction schedules. To achieve these goals, the study adopted the analytical descriptive method through an literature-based reviews of the related trends and challenges. The study discussed four of the contemporary trends to enhance schedules and three of the most important challenges they face during application, and concluded the target framework and a number of important results and recommendations to handle the research problem and support the Kingdom\u27s efforts and vision towards digital transformation and the use of modern technologies in all fields

Leber Hereditary Optic Neuropathy in a Mother and Daughter Associated With m.10197G>A Mutation

We read with great interest the letter by Jorstad et al (1) describing a 16-year-old boy with Leber hereditary optic neuropathy (LHON) harboring a mitochondrial DNA 10663T>C point mutation and his favorable response to idebenone treatment. We also recently encountered a patient with LHON who had an unusual mitochondrial DNA mutation and experienced marked improvement with idebenone

Bilateral Anophthalmia Associated with Septo-optic Dysplasia

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Von Hippel Lindau Disease Secondary to c.491A>G Mutation Presenting With Papilledema and Bilateral Pheochromocytomas

VHL disease is a heritable multisystem neoplasia syndrome that is associated with a germline mutation of the VHL tumor suppressor gene on the short arm of chromosome 3 and is characterized by the presence of benign and malignant tumors including hemangioblastomas of the brain and retina; pheochromocytoma etc. Herein we present a case of VHL secondary to c.491A>G mutation who presented with bilateral papilledema as a manifestation of malignant hypertension secondary to bilateral pheochromocytoma. This report underscores the importance of multidisciplinary evaluation and work up of children presenting with optic disc edema

Smartphone Infrared Pupillography and Pupillometry

Smartphone use for pupillography and pupillometry has been an area of interest for its ubiquity and convenience. Pupillometry is reliant on defining the border between the iris and the pupil. Infrared videography is the gold standard method for pupillography as it works for different iris colors and across the range of illumination conditions to provide high contrast between the pupillary and the iris margins. Using visible light spectrum for pupillography is markedly limited in the evaluation of the pupil in dim/dilating states, particularly in patients with dark colored irides. Herein we report the use of a smartphone-based infrared pupillographer with two synchronized mini-infrared camera modules coupled with an Android smartphone

Neurosarcoidosis Masquerading as Giant Cell Arteritis With Incidental Meningioma

We present a case of vision loss secondary to neurosarcoidosis, which initially presented with severe bilateral vision loss, temporal headaches, and elevated erythrocyte sedimentation rate, concerning for giant cell arteritis. However, temporal artery biopsy was negative. Initial neuroimaging features were misinterpreted to represent a meningioma that did not account for his clinical presentation. Clinical course, including atypically rapid enlargement of presumed meningioma, development of skin lesions, appearance of optic nerve enhancement on MRI, and steroid response, strongly increased suspicion for sarcoidosis. Biopsy of a skin lesion demonstrated noncaseating granulomatous inflammation, consistent with sarcoidosis

Neurosarcoidosis Masquerading as Cavernous Sinus Meningioma

Neurosacroidosis can mimic intracranial tumors resulting in a diagnostic and therapeutic challenge 1-4. We present a case of right cavernous sinus and superior orbital fissure sarcoidosis masquerading as meningioma on MRI and associated with bilateral optic neuropathy that caused serious vision loss

Ocular Complications Following Vaccination for COVID-19: A One-Year Retrospective

Vaccination efforts as a mitigation strategy in the corona virus disease 2019 (COVID-19) pandemic are fully underway. A vital component of understanding the optimal clinical use of these vaccines is a thorough investigation of adverse events following vaccination. To date, some limited reports and reviews have discussed ocular adverse events following COVID-19 vaccination, but a systematic review detailing these reports with manifestations and clinical courses as well as proposed mechanisms has yet to be published. This comprehensive review one-year into vaccination efforts against COVID-19 is meant to furnish sound understanding for ophthalmologists and primary care physicians based on the existing body of clinical data. We discuss manifestations categorized into one of the following: eyelid, orbit, uveitis, retina, vascular, neuro-ophthalmology, ocular motility disorders, and other