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Impact of different intravenous bolus rates on fluid and electrolyte balance and mortality in critically ill patients

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World Journal of Critical Care medicine 2024年第3期13卷 17-24页

作者： mutaz I Othman Emad m mustafa moayad alfayoumi mohamad Y Khatib Abdulqadir J Nashwan Department of Nursing Hamad Medical CorporationDoha 3050Qatar Department of Pharmacy Hamad Medical CorporationDoha 3050Qatar Department of Critical Care Hamad Medical CorporationDoha 3050Qatar

The effect of intravenous bolus rates on patient outcomes is a complex and crucial aspect of critical *** challenges are commonly used in critically ill patients to manage their hemodynamic status,but there is limited information available on the specifics of when,how much,and at what rate fluids should be administered during these *** aim of this review is to thoroughly examine the relationship between intravenous bolus rates,fluid-electrolyte balance,and mortality and to analyze key research findings and methodologies to understand these complex dynamics *** challenges are commonly employed in managing hemodynamic status in this population,yet there is limited information on the optimal timing,volume,and rate of fluid *** a narrative review approach,the analysis identified nine relevant studies that investigate these *** findings underscore the importance of a precise and individualized approach in clinical settings,highlighting the need to tailor intravenous bolus rates to each patient's specific needs to maximize *** review provides valuable insights that can inform and optimize clinical practices in critical care,emphasizing the necessity of meticulous and exact strategies in fluid administration.

关键词： Fluid balance Fluid resuscitation Intensive care unit Precision medicine mortality

Sediment Delivered in the Upper Part of mosul Using Physical model

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Journal of Civil Engineering and Architecture 2012年第11期6卷 1544-1550页

作者： Issa E. Issa Nadhir AI-Ansari Seven Knutsson moayad Khaleel Department of Civil Environmental and Natural Resources Engineering Lulea University of Technology Lulea 971 87 Sweden Department of Water Resources Engineering Mosul University Mosul 41002 Iraq

mosul dam is the biggest hydraulic structure in Iraq located on the River Tigris 60 km northwest of mosul city. Its storage capacity is 11. 11 × 109 m3 and it had been in operation since 1986. A physical distorted model with movable bed having a vertical scale 1： 100 and a horizontal scale 1：1000 was used to conduct the experiments relating the water level at the reservoir and water discharge upstream the reservoir with the bed load transport rate. The model represents the first 15 km of most northern part of mosul dam reservoir. The construction of the model was based on bathymetric survey conducted in 2009. Twenty-four experiments were executed using four different discharges （0.5, 1.0, 1.5, and 2.0 L/s） which represent the average discharges in the flood period of River Tigris. At each individual discharge six operations were assumed where the reservoir＇s water level was 305, 307, 309, 310, 312, 315 meters above sea level respectively. In all the experiments conducted, bedload transport was measured in the physical model at section representing the River Tigris 1 km upstream the reservoir. The results showed that the bedload rate was decreasing when the water level within the reservoir was increasing. It was also evident that bedload transport rate dramatically decreased at level 310 meters above sea level onward. This is due to the fact that at this level represent the effect of backwater which was noticeable on the river cross section

关键词： Sediment transport mosul dam reservoir operation bedload physical model.

Experimental Analysis of Sediment Deposition Due to the Effect of an Upstream Reservoir Backwater

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Journal of Civil Engineering and Architecture 2014年第9期8卷 1185-1193页

作者： Issa E. Issa Nadhir Al-Ansari moayad Khaleel Sven Knutsson Department of Civil Environmental and Natural Resources Engineering Lule~ University of Technology Lulea 9718 7 Sweden Department of Dams and Water Resources Engineering University of Mosul Mosul 41002 Iraq

The phenomenon of aggradation due to sediment accumulation upstream reservoirs had been studied in this research. For this purpose, groups of experiments were conducted in a laboratory with 25 m long, 0.80 m wide and 0.70 m deep channel. A block was built at the end of the channel to work as a dam to impound water. The channel was supplied with drainage pipes on both sides to release water out in a manner similar to what happens in reservoirs. The bed of the channel was filled with sand of 0.80 mm median sieve diameter and 0.72 geometric standard deviation. The slope was 0.0093 for all experiments. Two sizes of sand were used representing the sediment. The median diameter and geometric standard deviation of the first were 0.365 mm and 0.46 mm, respectively. The second sample had 0.65 mm median diameter and 0.67 standard deviation. A total of 70 experiments were conducted in two groups to examine effects of sediment transport rate, particle size of sediment and flow velocity on aggradation characteristics. The results showed that there was a strong linear direct relationship between aggradation elements （length and depth） with the rate of sediment transport. Groups of dimensionless parameters affecting the aggradation characteristics were used to develop empirical equations to predict the length, maximum depth of aggradation and predict transient bed profile. The results of empirical approach were compared with the measurement data and previous numerical method. The results indicated that the percentage error was 19% to 31% for length of aggradation and -21% to 26% for maximum depth of aggradation. The results also showed that the sediment materials were deposited closer to the body of the dam when the released water from the dam is higher than the inflow.

关键词： Aggradation alluvial channel reservoir sedimentation sediment deposition.

Preparation and Characterization of Oligomer from Recycled PET and Evaluated as a Corrosion Inhibitor for C-Steel material in 0.1 m HCl

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Open Journal of Organic Polymer materials 2017年第1期7卷 1-15页

作者： Ali H. Yasir Alaa S. Khalaf moayad N. Khalaf Chemistry Department College of Science Basrah University Basrah Iraq

Polyethylene terephthalate waste (PET) was depolymerized by thiodiglycol into thioglycolyzed product. The product was characterized by FTIR and 1HNmR spectroscopy and the thermal properties (TGA, DTA) showed that the prepared compound was thermally stable until 250°C. The efficiency of the prepared corrosion inhibitor for carbon steel was measured by using acid media (0.1 HCl) as corrosive environment and the inhibitor concentration was (0, 10, 20, 30, 40 and 50 ppm). The electrochemical technique used Tafel plot to measure the efficiency of inhibitor. Factors effect on the rate of corrosion like temperature (298, 308, 318, 328 K) and concentration (10, 20, 30, 40, 50 ppm) of inhibitor were studied. From the obtained results many factors were calculated that determined the efficiency of the inhibitor like corrosion rate, charge transfer resistance and inhibitor efficiency. It was observed that the corrosion rate and charge transfer of the carbon steel for the inhibitor increase with increase of temperature and decrease with increase of the inhibitor concentration in the same temperature. The results showed that the inhibitor had high inhibition in reducing the corrosion rate. The inhibition efficiency (% IE) reached 97.1% for the 40 ppm concentration at 308 K.

关键词： Waste Polymer Glycolysis Corrosion Inhibitor

Evaluation of the Influence of Fixed Orthodontic Treatment Duration on the Severity of Inflammatory Gingival Enlargement (Fixed Orthodontic Induced Gingival Enlargements) and Some Properties of Saliva

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International Journal of Clinical medicine 2022年第3期13卷 132-146页

作者： mohammed m. A. Abdullah Al-Abdaly Abdullah mohammed A. Asiri Ghadeer mohammed mohammed Al-Abdaly mohammed Abdullah Ghabri moayad Abdullah H. Alqaysi Abdulmajeed mohammed S. Aljathnan Yahya Saleem m. Al Naser Naser Ali N. Alshahrani Periodontics and Community Dental Sciences Department College of Dentistry King Khalid University Abha KSA College of Dentistry King Khalid University Abha KSA Faculty of Dentistry Sana’a University Sanaa Republic of Yemen

Background: Inflammatory gingival enlargement is a more common clinical feature with orthodontic therapy than other features. Therefore, this study was designed to the evaluation of the influence of fixed orthodontic treatment duration on the severity of inflammatory gingival enlargement (fixed orthodontic induced gingival enlargements) and some properties of saliva. material and methods: The sample size comprised 145 patients undergoing fixed orthodontic treatment for at least 6 months aged 13 - 32 years. They were divided according to orthodontic treatment duration into three groups. Group I (n = 47) included the patients who were treated for less than 6 months, group II (n = 51) included the patients who were treated for a period of 6 - 12 months, and group III (n = 47) included the patients who were managed for more than 12 months. Data were obtained from the outpatient clinics, college of dentistry, King Khalid University, Abha, Saudi Arabia, and some dental centers in Sana’a city, the Republic of Yemen. This study was conducted from October 2021 G to January 2022 G. Clinical examination was done for plaque index (PLI), gingival index (GI), and gingival enlargement indexes (GEI). Saliva was collected in sterile test tubes then salivary flow and pH were measured. Statistical analysis was done with SPSS (version 23) and ANOVA test to evaluate the impact of orthodontic treatment duration on the severity of inflammatory gingival enlargement and some properties of saliva. Results: The statistical analysis demonstrated the highest mean plaque index (PLI) was among groups III and I participants whereas, the highest mean gingival index and mean gingival enlargement were among groups II and III participants. The present study revealed an increase in salivary flow with decreased salivary pH values with an increase in orthodontic therapy duration. There were statistically significant differences in clinical findings and salivary flow and pH values were observed in the com

关键词： Inflammatory Gingival Enlargement Orthodontic Treatment Duration Some Salivary Properties