1,645 research outputs found
Physical therapy in burn wound healing: Development of clinical prediction rules to identify the efficacy of pulsed electromagnetic therapy
Many studies have demonstrated the effect of pulsed electromagnetic therapy (PEMT) on wound healing. This study aimed to develop a clinical prediction rule (CPR) to assess PEMT's efficacy in burn healing, potentially enhancing treatment decisions and outcomes. It was a one-group intervention study with 46 patients (21 males, 25 females) aged 20 to 55 years, having partial-thickness burns in the first or second healing stage, and a total burned surface area (TBSA) over 15%. The intervention involved pulsed electromagnetic therapy (Fisioline, Italy) for up to six weeks, with 60-minute sessions at 12 Hz and 12 Gauss, three times per week. The statistical analysis was conducted using the SPSS. The study revealed a significant decline in wound surface area (WSA) post-intervention (p < 0.05). A significant negative relationship was found between wound improvement and both age and total body surface area (TBSA) (p < 0.05), while a significant positive relationship was observed between wound improvement and initial wound size (p < 0.05). No significant relationship was found between wound improvement and wound stage (p > 0.05). The study concluded that pulsed electromagnetic therapy significantly reduces wound surface area. Additionally, age, TBSA, and initial burn wound size are important predictors of the therapy's efficacy in treating burn wounds.
Heart Rate Variability as A Predictor of Hypotension Following Spinal Anesthesia for Elective Caesarian Section in Preeclamptic Parturients: A Descriptive Observational Study
AIM: In this study we aimed to find out the heart rate variability measuring using electrical cardiometry is not reliable as a predictor for hypotension following spinal anesthesia in preeclamptic parturients undergoing elective cesarean section.
METHODS: Electrical Cardiometry system was used to measure Heart rate variability (HRV) at five different time points before fluid loading (T0, baseline), after fluid loading (T1), 5 min after spinal anaesthesia (T2), 15 min after spinal anaesthesia (T3) and 30 min after spinal anaesthesia (T4). Traditional HRV measurement was determined using time-domain analysis. This Observational descriptive cohort study was conducted in Kasr Al-Ainy Hospital, Faculty of Medicine, Cairo University from February 2018 till June 2019, after approval of the Ethical Committee and written patients consent.
RESULTS: The main finding of the current study is that heart rate variability measuring using electrical cardiometry is not reliable as a predictor for hypotension following spinal anaesthesia in preeclamptic parturients undergoing elective cesarean section.
CONCLUSION: Heart rate variability cannot be used as a predictor for hypotension following spinal anaesthesia in preeclamptic patients undergoing elective caesarean section using electrical cardiometry
Modeling of Nearshore Wave Transformations behind Submerged Breakwaters
Breakwaters can generally be divided into three categories based on where the sea level is: submerged breakwater, emerged breakwater, and lower limit breakwater. Nearshore barriers with an underwater structure called submerged breakwaters are used to dissipate the force of wave strikes and safeguard the shoreline. The wave transmission coefficient value can be used to assess submerged breakwaters\u27 contribution to the wave energy decrease. In the past mathematical and physical models were used to understand how the submerged breakwater affects incoming wave energy, hydrodynamic processes, and morphological changes. In the present study, the MIKE21 SW software as the numerical model was employed. The impact of the crest submergence depth and crest width on transmission coefficient value for the case of impermeable submerged breakwaters was studied. Contour maps of significant wave height were generated. The transmission coefficient is significantly influenced by the relative submergence depth when the relative submergence depth ≤ 2. However, the transmission coefficient is no longer impacted by the relative submergence depth \u3e 2. The best relative submergence depth falls within the range of values from 0.25 to 1.00
Roadmap for recommended guidelines of leak detection of subsea pipelines
The leak of hydrocarbon-carrying pipelines represents a serious incident, and if it is in a gas line, the economic exposure would be significant due to the high cost of lost or deferred hydrocarbon production. In addition, the leakage of hydrocarbon could pose risks to human life, have an impact on the environment, and could cause an image loss for the operating company. Pipelines are designed to operate at full capacity under steady-state flow conditions. Normal operations may involve day-to-day transients such as the operations of pumps, valves, and changes in production/delivery rates. The basic leak detection problem is to distinguish between the normal operational transients and the occurrence of non-typical process conditions that would indicate a leak. To date, the industry has concentrated on a single-phase flow, primarily of oil, gas, and ethylene. The application of a leak-monitoring system to a particular pipeline system depends on environmental issues, regulatory imperatives, loss prevention of the operating company, and safety policy rather than pipe size and configuration. This paper provides a review of the recommended guidance for leak detection of subsea pipelines in the context of pipeline integrity management. The paper also presents a review of the capability and application of various leak detection techniques that can be used to offer a roadmap to potential users of the leak detection systems. © 2024 by the authors
The Extent of Application the Accounting Concept of the Fair Value in the Jordanian Banks According to the Requirements of the International Accounting Standards
This Study aimed to identify the application concepts of fair value in Jordanian banks and to identify how to fair value measured , recorded , and disclosure in banks records . This study was applied on the Jordanian banks the size of study society was about ( 15 ) banks and ( 70 ) questionnaire has been submitted.For this purpose a questionnaire was designed and distributed to the accountants or financial manager to gather the necessary data to view results. The SPSS program was used for data analysis and hypotheses test. The study reached to a number of results , the most important are: 1-Â Â Â Â The Jordanian banks to apply the fair value concepts in their records and from where ( measurement , disclosure ). 2-Â Â Â Â The Jordanian banks not to apply the fair value concepts in measurement the trading liabilities. 3-Â Â Â Â The Jordanian banks disclosure about the fair value effect on accounts that measuring in fair value. In the light of the above results it leads to the following recommendations the most important are: 1-Â Â The Jordanian banks should held courses and inform the accountants about new developments that arise on fair value. 2-Â Â The Jordanian banks should to adopt application the International Accounting Standards (IAS
Performance and enhancement evaluation of a solar still by using spraying technology
The current experimental investigation uses the water spraying approach to increase the productivity and efficiency of pyramid solar still. The design, construction, and testing of a traditional and modified small-scale pyramid solar still were conducted under identical meteorological conditions as in Tanta City, Egypt (30° 47\u27 N, 31°E). One of the modifications is that heated sheet metal will occasionally be sprayed with salted water. We looked into how the modified solar still\u27s (MPSS) performance characteristics were affected by solar radiation, water depth, and sheet metal-specified temperature. Measurements were made of the saline water temperature, glass temperature, spraying flow rate, and daily productivity. The performance of MPSS and traditional pyramid solar stills (CPSS) was contrasted. Because the results indicated that water depth had a detrimental impact on productivity, we chose the lowest level that could be achieved—roughly 15 mm for MPSS and 8 to 22 mm for CPSS. For MPSS and CPSS, the daily productivity was approximately 5000 ml/m2 and 2830 ml/m2, respectively. MPSS outperformed CPSS in productivity by almost 44 %. Furthermore, the modified pyramid solar daily efficiency ranges from 57 to 69%, while the regular pyramid solar still ranges from 26 to 41%
Synthesis, spectroscopic, thermal and anti-microbial studies of transition metal complexes of hydrazone derived from 4,6-diacetylresorcinol and S-methyldithiocarbazate
New series of copper(II), nickel(II), cobalt(II), zinc(II), cadmium(II), iron(III) and oxovanadium(IV) complexes of hydrazone, H3L, ligand derived from the condensation of S-methyldithiocarbazate and 4,6-diacetylresorcinol, in the molar ratio 1:1, has been synthesized. All the metal complexes are dimmers. The structures of the ligand and its transition metal complexes were characterized by elemental analyses, spectral (Infrared, electronic, Mass, 1H NMR and ESR) data and magnetic susceptibility, molar conductivity measurements and thermal gravimetric analysis. The structure of the ligand is dibasic tridentate with ONS sites. The bonding sites, in all cases, are the azomethine nitrogen, phenolic oxygen and thiol sulfur atoms, as illustrated from the spectral data. The metal complexes exhibit different geometrical arrangements such as square planar, tetrahedral, square pyramidal and octahedral arrangements. Kinetic parameters (DG, DH, DS and DE) of the metal complexes were calculated from the thermal behaviour of the metal complexes using Coats-Redfern method. The ligand and its metal complexes were screened for its antimicrobial activity against Staphylococcus aureus and Staphylococcus pyogenes as Gram-positive bacteria, Pseudomonas phaseolicola and Pseudomonas fluorescens as Gram-negative bacteria and the fungi Fusarium oxysporum and Aspergillus fumigatus
Evaluation of Digital Brixmeter Performance for Brix Measurement In Raw Sugar Solution
The Brix value is an important factor in the sugar industry's extraction processes. Brix refers to the amount of sucrose in the raw sugar solution. The concentration of dissolved solids in a solution is measured by the degree Brix (symbol °Bx). One gram of sucrose in 100 grams of solution equals one-degree Brix. a New Suggested method for measuring brix was designed to be low-cost and accurate Brix measuring in raw sugar solutions. it was depended on Electronic sensors can directly measure the mass, and temperature of the solution to express the brix and give the result on the screen. Digital suggested brixmeter was made based on this method. It can be used manually on the production line and in various food industries. The aim of this paper was to evaluate the digital brixmeter performance for measuring brix in raw sugar solutions. Brix measurements were tested for a group of samples at different sizes to find the optimal measurement sizes can verify accurate brix degree value. The factors affecting the accuracy of the measurement were also studied. The results were compared with the brix read from accurate optical refractometer to check and a prove the accuracy of the proposed digital brixmeter
A Clinical Score to Predict Acute Renal Failure after Cardiac Surgery in Egypt
Background: Acute Kidney Injury (AKI) after cardiac surgery is a serious complication. AKI could occur in 30% of patients, and 1-5% develop severe kidney injury. The present study aimed to evaluate the use of the Cleveland Clinic Score (CCS) to identify patients at higher risk of AKI after cardiac surgery.
Methods: This study included 100 patients, 83 were males, and the mean age was 52.47±11.3 years. All patients had elective operations; 30% had isolated valve surgery, 64% had isolated coronary artery bypass grafting (CABG), and 6% had combined CABG and valve operation.
Results: Creatinine serum level ranged between 0.5-2 mg/dL with a mean of 0.98±0.32 mg/dL. Seventy-four patients had good renal function postoperatively, and their CCS was 1.45±0.36, while 26 patients had renal impairment, and their CCS was 12.5±0.44 (P= 0.001). Patients who had AKI were older (62.87±8.7 vs. 49.9±13.9; P<0.001) and had higher preoperative creatinine (1.1±0.32 vs. 0.94±0.31; P= 0.03). AKI was more common in diabetics (23 (88.5%) vs. 28 (37.85, P<0.001) and patients with COPD (6 (23.1%) vs. 3 (4.1%); P= 0.004). CCS score was significantly higher among the different degrees of severity of AKI.
Conclusion: Cleveland Clinic Score could be good for predicting acute kidney injury after cardiac surgery
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