Echo-Doppler Features of Pulmonary Valve Endocarditis

Three patients with fever and pneumonitis were found to have pulmonary valve vegetations by echocardiography. Pulsed and color flow Doppler studies demonstrated mild to moderate pulmonary valve insufficiency in these patients. All patients responded to the appropriate antibiotics without requiring valve surgery. Echocardiography is of value in diagnosing pulmonary valve endocarditis and should be considered in every patient with recurrent pneumonitis

Numerical evaluation of dry-stacked masonry walls against blast loading

This research intends to numerically study the out-of-plane behaviour of confined dry-stacked masonry (CDSM) walls against blast loading. CDSM is a mortar-less interlocking masonry system consisting of Interlocking Compressed Earth Block (ICEB) laid in stretcher bond with reinforced concrete (RC) confining elements. A nonlinear numerical model is developed using advanced finite element software ABAQUS to study the response of CDSM walls subjected to explosive loads of 8 kgs Trinitrotoluene (TNT). The blast load was detonated at 2m from the walls of confined masonry at a height of 1m above ground. The resulting damage distribution and displacement time history were compared for two walls with different reinforcement. This study helps to visualize the effect of diagonal reinforcement along with the performance of CDSM walls against blast loading using ABAQUS. The results shows less damage for diagonally reinforced wall

Analisis Perubahan Penggunaan Lahan Di Kecamatan Jatinom Kabupaten Klaten Tahun 2015 Dan 2020

Human activities on the earth's surface influence changes in land use. The primary factor of land use change in a given area is population growth. Jatinom District, Klaten Regency, is one of the areas in which land use is increasing. The aims of this study are to (1) analyze the distribution of land use change in Jatinom District in 2015 and 2020, and (2) analyze the factors that influence land use change in Jatinom District in 2015 and 2020. Secondary data analysis used in this study, and with visual interpretation of 2015 and 2020 Geoeye images which included field checking. The research showed (1) residential land use altered the most, resulting in 24.37 ha in Pandeyan Village, Puluhan Village, Jemawan Village, Krajan Village, Bonyokan Village, and Jatinom Village. The conversion of other land use functions such as rice fields, fields or fields, and hardened fields has resulted in changes in the use of residential land. (2) Topography, population, land value, accessibility, infrastructure, and carrying capacity are all factors that encourage changes in land us

Practical Value of Echo Doppler Evaluation of Aortic and Mitral Stenosis: A Comparative Study with Cardiac Catheterization

This retrospective analysis compares data derived by echocardiography and cardiac catheterization in the evaluation of aortic and mitral valve stenosis. Sixty-seven patients, aged 69 ± 12 years, underwent 76 catheterization procedures. In all studies the Doppler recording was technically adequate. In 64 studies of patients with aortic stenosis, correlation was good between the gradient obtained at catheterization (peak 51 ± 28 mm Hg, mean 48 ± 24 mm Hg) and the Doppler gradient (peak 73 ± 29 mm Hg, mean 41 ±17 mm Hg) (R = 0.78 peak, 0.77 mean). In 15 studies the aortic valve area, 0.8 ± 0.2 cm2, calculated by the simplified continuity equation, correlated well with the catheterization valve area, 0.7 + 0.3 cm2, calculated by the Gorlin equation (R = 0.80). In 14 studies in mitral stenosis patients, the mean gradient at catheterization was 11 ±5 mmHg compared to the Doppler gradient of 8 ±4 mmHg (R = 0.58). The mitral valve area was 1.1 ± 0.3 cm2 by the Gorlin equation and 1.2 ± 0.3 cm2 by echo Doppler, using pressure half-time. When cardiac rhythm, the presence and severity of regurgitation, and the cardiac index were analyzed, none was shown to have demonstrable influence cm the accuracy of the Doppler study. Doppler echocardiography can be used reliably to assess valvular stenosis in a clinical, noninvasive laboratory where routine tests are performed and interpreted by more than one individual

Photocatalytic Activity of Ag/TiO2 Composite Synthesized Using Aqueous Plant Extract from Mirabilis jalapa for Degradation of Rhodamine B Under Visible Light

In this study, aqueous plant extract from Mirabilis jalapa has been used for the synthesis of Ag/TiO2 utilizing a green synthesis method. UV-Vis analysis revealed a Surface Plasmon Resonance (SPR) band at 461 nm, indicating that silver nanoparticles had formed. The anatase phase of TiO2 and the presence of silver could be seen in the X-ray diffraction (XRD) patterns. Scanning Electron Microscope (SEM) images for Ag and TiO2 show cuboid and irregular shapes, respectively. The photocatalytic activity of material (Ag/TiO2) was analyzed in the degradation of Rhodamine B under visible light irradiation with various concentrations of silver that were labelled as PT (pure TiO2), Ag1T, Ag2T, Ag3T, and Ag4T. The photocatalytic activity indicated that Ag2T has the highest catalytic activity among all catalysts after 240 minutes of reaction time. Furthermore, this study provides Ag/TiO2 composite act as a promising candidate to resolve environmental problems

The prevalence of waterpipe tobacco smoking among the general and specific populations: a systematic review

Abstract Background The objective of this study was to systematically review the medical literature for the prevalence of waterpipe tobacco use among the general and specific populations. Methods We electronically searched MEDLINE, EMBASE, and the ISI the Web of Science. We selected studies using a two-stage duplicate and independent screening process. We included cohort studies and cross sectional studies assessing the prevalence of use of waterpipe in either the general population or a specific population of interest. Two reviewers used a standardized and pilot tested form to collect data from each eligible study using a duplicate and independent screening process. We stratified the data analysis by country and by age group. The study was not restricted to a specific context. Results Of a total of 38 studies, only 4 were national surveys; the rest assessed specific populations. The highest prevalence of current waterpipe smoking was among school students across countries: the United States, especially among Arab Americans (12%-15%) the Arabic Gulf region (9%-16%), Estonia (21%), and Lebanon (25%). Similarly, the prevalence of current waterpipe smoking among university students was high in the Arabic Gulf region (6%), the United Kingdom (8%), the United States (10%), Syria (15%), Lebanon (28%), and Pakistan (33%). The prevalence of current waterpipe smoking among adults was the following: Pakistan (6%), Arabic Gulf region (4%-12%), Australia (11% in Arab speaking adults), Syria (9%-12%), and Lebanon (15%). Group waterpipe smoking was high in Lebanon (5%), and Egypt (11%-15%). In Lebanon, 5%-6% pregnant women reported smoking waterpipe during pregnancy. The studies were all cross-sectional and varied by how they reported waterpipe smoking. Conclusion While very few national surveys have been conducted, the prevalence of waterpipe smoking appears to be alarmingly high among school students and university students in Middle Eastern countries and among groups of Middle Eastern descent in Western countries

EFFECT OF CORRELATION BETWEEN ROCK PROPERTIES WITH WATER DISCHARGE BY RAINFALL TO LEVEL OF LANDLIDE IN THE CITARUM WATERSHED 20 – 0 KILOMETER, WEST JAVA, INDONESIA

Citarum River is one of the longest rivers in West Java, Indonesia, with coordinate 7°4'31"S 107°44'53"E. Citarum river has an upstream which located in the region of Neglawangi, Kertasari, and has a downstream in the northern coast of Bekasi. A lot of people domiciled on the watershed of Citarum. Natural disaster such as landslide has become a common thing for people who live around the watershed of Citarum. Study of rock properties located in Citarum River may explain why landslides often occur in areas of Citarum River. The rock sample was conducted at three different stations with each station has a different rock properties. High rainfall causes water flow in the river rises. With the high discharge of water by high rainfall certain rock properties that have a low resistance to water will be easily eroded and causes the soil above the rock properties vulnerable to landslides

Optimization of ultrasound-assisted extraction of bioactive compounds from acacia seyal gum using response surface methodology and their chemical content identification by Raman, FTIR, and GC-TOFMS

Acacia Seyal gum (ASG), also known as gum Arabic, is an antioxidant-rich soluble fiber. ASG has been reported to have many biological activities, including anticancer, antidiabetic, antiulcer, and immunomodulatory activity. Extraction of bioactive compounds from ASG is commonly performed using conventional extraction methods. However, these techniques have certain limitation in terms of extraction time, energy, and solvent requirements. Ultrasound-assisted extraction (UAE) could be used as an alternative technique to extract bioactive compounds in less time, at low temperature and with less energy and solvent requirements. In this study, the UAE extraction of ASG was optimized using response surface methodology (RSM). A face-centered central composite design (FCCCD) was used to monitor the effect of different independent factors of ultrasound operation (sonication time, temperature, and solvent ratio) on ASG extraction yield. In addition, screening and characterization of phytochemicals in 60% ethanol ASG extract was carried out using Raman microscopy, Fourier transform infrared spectroscopy (FTIR), and gas chromatography time-of-flight mass spectroscopy (GC-TOFMS) analysis. The results indicated that, under optimal conditions (extraction time 45 min, extraction temperature 40 ◦C, and solid–liquid ratio of 1:25 g/mL), the yield of ASG was 75.87% ± 0.10. This yield was reasonably close to the predicted yield of 75.39% suggested by the design of experiment. The ANOVA revealed that the model was highly significant due to the low probability value (p < 0.0001). Raman spectrum fingerprint detected polysaccharides, such as galactose and glucose, and protein like lysine and proline, while FTIR spectrum revealed the presence of functional groups peaks value of alkanes, aldehydes, aliphatic amines, and phenol. GCTOFMS spectroscopic detected the presence of strong D-galactopyranose, carotenoid, and lycopene antioxidant compounds. In conclusion, this study demonstrated that the UAE technique is an efficient method to achieve a high yield of ASG extracts. The selected model is adequate to optimize the extraction of several chemical compounds reported in this study