This study aims to evaluate the suitability of subsurface layers for infrastructure development using geophysical and geotechnical studies. Six seismic refraction and six 2D geoelectic profiles were conducted in the study area to analyze the geotechnical characteristics of the subsoil in order to assess its suitability for construction projects. According to the geophysical investigation, there are two main geoelectric strata, each with a different lithology and thickness.
View Article and Find Full Text PDFLumbar cerebrospinal fluid (CSF) drainage is one of the few preventative and therapeutic practices that may reduce spinal cord ischemia in high-risk thoracic endovascular aortic aneurysm repair (TEVAR). Although this is part of clinical guidelines in open thoracoabdominal aortic repair, there are no randomized controlled trials that provide convincing evidence on the protection conferred by CSF drainage in high-risk TEVAR patients. This gap in knowledge obfuscates clinical decision making given the risk of significant complications of CSF drain insertion and management.
View Article and Find Full Text PDFJ Cardiothorac Vasc Anesth
July 2024
The use of endovascular, percutaneous interventions to treat cardiac, arterial, and venous pathologies is becoming increasingly common in medical practice. While endovascular device placement typically carries a low risk, device migration remains a persistent problem with these procedures for which anesthesia providers must have a high index of suspicion. Anesthesia providers should be aware of the wide range of indications for such devices, potential migration locations, and hemodynamic consequences of both the inciting pathology and device migration so they can safely care for patients in these settings.
View Article and Find Full Text PDFImprovement of current wastewater treatment plants (WWTPs) to accommodate the growing influent flow rate and cope with the increasingly stringent regulations is hindered by the allowed space and the difficulty of changing the design parameters. Mathematical modeling is a useful tool for assessing the performance of WWTPs in light of broadening objectives. We herein explore the utilization of mathematical modeling to improve effluent quality in conventional activated sludge systems.
View Article and Find Full Text PDFThe utilization of phosphorite deposits as an industrial resource is of paramount importance, and its sustainability largely depends on ensuring safe and responsible practices. This study aims to evaluate the suitability of phosphorite deposits for industrial applications such as the production of phosphoric acid and phosphatic fertilizers. To achieve this goal, the study meticulously examines the geochemical characteristics of the deposits, investigates the distribution of natural Radioactivity within them, and assesses the potential radiological risk associated with their use.
View Article and Find Full Text PDFBackground: Postoperative stroke is a devastating complication of surgery, given its association with severe long-term disability and mortality. Previous investigators have confirmed the association of stroke with postoperative mortality. However, limited data exist regarding the relationship between the timing of stroke and survival.
View Article and Find Full Text PDFJ Cardiothorac Vasc Anesth
October 2023
Endobronchial valves (EBVs) are a novel, minimally invasive bronchoscopic management technique for persistent air leaks that fail conservative therapy. Currently, 2 EBVs are available in the United States: the Spiration Valve System (Olympus, Redmond, WA) and the Zephyr Valve (Pulmonx, Redwood, CA). These valves are Food and Drug Administration-approved to reduce hyperinflation in emphysematous patients via bronchoscopic lung-volume reduction.
View Article and Find Full Text PDFThe Syncardia total artificial heart system is the only commercially approved durable device for treating biventricular heart failure patients awaiting heart transplantation. Conventionally, the Syncardia total artificial heart system is implanted based on the distance from the anterior aspect of the 10th thoracic vertebra to the sternum and the patient's body surface area. However, this criterion does not account for chest wall musculoskeletal deformities.
View Article and Find Full Text PDFJ Cardiothorac Vasc Anesth
November 2023
Cardiothoracic surgical critical care medicine (CT-CCM) is a medical discipline centered on the perioperative care of diverse groups of patients. With an aging demographic and an increase in burden of chronic diseases the utilization of cardiothoracic surgical critical care units is likely to escalate in the coming decades. Given these projections, it is important to assess the state of cardiothoracic surgical intensive care, to develop goals and objectives for the future, and to identify knowledge gaps in need of scientific inquiry.
View Article and Find Full Text PDFSemin Cardiothorac Vasc Anesth
September 2023
The presence of a tracheal bronchus, which is often incidentally discovered, complicates endotracheal intubation and lung isolation during thoracic surgery. Prior reports of successful right-sided lung isolation in the presence of tracheal bronchus required utilization of a double lumen tube. Although right-sided lung isolation was required in our case, due to other patient factors, it was determined that a double lumen tube of a suitable size would be unlikely to be placed safely and successfully.
View Article and Find Full Text PDFThe current contribution goal is to measure the distribution of the radionuclide within the exposed rock units of southwestern Sinai, Seih-Sidri area, and assess the radiological risk. Gneisses, older granites, younger gabbro, younger granites, and post granitic dikes (pegmatites) are the main rock units copout in the target area. Radioactivity, as well as radiological implications, were investigated for forty-three samples from gneisses (seven hornblende biotite gneiss and seven biotite gneiss), older granites (fourteen samples), and younger granites (fifteen samples of syenogranites) using NaI (Tl) scintillation detector.
View Article and Find Full Text PDFTannery industries are one of the extensive industrial activities which are the major source of chromium contamination in the environment. Chromium contamination has been an increasing threat to the environment and human health. Therefore, the removal of chromium ions is necessary to save human society.
View Article and Find Full Text PDFNatural radioactivity, radiological hazard, and petrological studies of Homrit Waggat granitic rocks, Central Eastern Desert, Egypt were performed in order to assess their suitability as ornamental stone. On the basis of mineralogical and geochemical compositions, Homrit Waggat granitic rocks can be subdivided into two subclasses. The first class comprises granodiorite and tonalite (I-type) and is ascribed to volcanic arc, whereas the second one includes alkali-feldspar granite, syenogranite, and albitized granite with high-K calc alkaline character, which is related to post-orogenic granites.
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