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Ultrasound sludge

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https://www.readbyqxmd.com/read/28840272/the-utility-of-hepatic-artery-velocity-in-diagnosing-patients-with-acute-cholecystitis
#1
Thomas W Loehfelm, Justin R Tse, R Brooke Jeffrey, Aya Kamaya
PURPOSE: To test the diagnostic performance of elevated peak systolic hepatic arterial velocity (HAv) in the diagnosis of acute cholecystitis. METHODS: 229 patients with an ultrasound (US) performed for right upper quadrant (RUQ) pain were retrospectively reviewed. 35 had cholecystectomy within 10 days of ultrasound and were included as test subjects. 47 had normal US and serology and were included as controls. Each test patient US was reviewed for the presence of gallstones, gallbladder distention, sludge, echogenic pericholecystic fat, pericholecystic fluid, gallbladder wall thickening, gallbladder wall hyperemia, and reported sonographic Murphy sign...
August 24, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28831268/a-prospective-study-of-the-association-between-sickle-cell-disease-and-hepatobiliary-effects-in-bahrain
#2
Maheeba A M Abdulla, Fajer Juma Almoosa, Rana Juma Almoosa, Jehad Al Qamish
BACKGROUND: Sickle cell disease is a genetic disorder that leads to abnormally high levels of hemoglobin sickling in erythrocytes. Patients suffer debilitating and severe complications that affect multiple organs, though mainly the liver, gallbladder, spleen, bones, and kidneys. It has a significant impact on morbidity and mortality rates and is associated with substantial health care costs. METHODS: For this study, the researchers prospectively reviewed the charts of 154 sickle cell disease patients who had been treated in Salmaniya Medical Complex hospital in Bahrain between September 2013 and December 2014...
2017: International Journal of General Medicine
https://www.readbyqxmd.com/read/28809953/monitoring-health-and-reproductive-status-of-olms-proteus-anguinus-by-ultrasound
#3
Susanne Holtze, Maja Lukač, Ivan Cizelj, Frank Mutschmann, Claudia Anita Szentiks, Dušan Jelić, Robert Hermes, Frank Göritz, Stanton Braude, Thomas Bernd Hildebrandt
The olm (Proteus anguinus) is a troglomorphic, neotenous amphibian with extraordinary life expectancy and unique adaptations that deserve further investigation. A low reproductive rate and habitat decline render it threatened by extinction. Establishing captive populations for maintenance and artificial breeding may one day become crucial to the species. Longitudinal, in-vivo assessment of inner organs is invaluable to our understanding of reproductive physiology, health, and behavior. Using ultrasound, we measured heart rate and assessed health and reproductive status of 13 captive olms at Zagreb Zoo...
2017: PloS One
https://www.readbyqxmd.com/read/28772642/improvement-of-sludge-dewaterability-by-ultrasound-initiated-cationic-polyacrylamide-with-microblock-structure-the-role-of-surface-active-monomers
#4
Chuanliang Zhao, Huaili Zheng, Li Feng, Yili Wang, Yongzhi Liu, Bingzhi Liu, Badradine Zakaria Djibrine
Cationic polyacrylamides have been employed widely to improve sludge dewatering performance, but the cationic units are randomly distributed in the molecular chain, which restricts the further enhancement of dewaterability. Common template technology to prepare block copolymers requiring a huge number of templates reduces the polymer purity and molecular weight. Here, we adopted the surface-active monomer benzyl dimethyl 2-(methacryloyloxy)ethyl ammonium chloride (BDMDAC) to synthesize cationic microblocky polyacrylamide initiated by ultrasound...
March 13, 2017: Materials
https://www.readbyqxmd.com/read/28761817/purely-ultrasonic-enzyme-extraction-from-activated-sludge-in-an-ultrasonic-cleaning-bath
#5
Mario Plattes, Christian Koehler, Tom Gallé
Enzymes are important in biological wastewater treatment systems, since they are responsible for breakdown of macro- and micropollutants, thereby making the pollutants available for metabolism. Enzyme activity has been investigated in particular in activated sludge processes, since the activated sludge technology is the most important and widely spread wastewater treatment technology used today. Various methods have been used to extract enzymes from activated sludge in order to measure their activity, these include stirring with additives like detergents and cation exchange resins, ultrasonication (with probes) and combinations of the three [1], [2], [3]...
2017: MethodsX
https://www.readbyqxmd.com/read/28647717/a-large-choledochocystolithiasis-mimicking-mirizzi-syndrome
#6
Mustafa Belal Hafeez Chaudhry, Muhammad Azeemuddin, Muhammad Rizwan Khan, Om Parkash
An 18-year-old man presented with spontaneous severe epigastric pain, progressing and radiating to back since 3 days. It was associated with epigastric tenderness, bilious vomiting and jaundice. He had been intermittently experiencing these symptoms for the last 1 year. No known comorbid. Ultrasound showed a poorly visualised heterogeneous focus at porta hepatis; considering poor visualisation, this might represent an enlarged calcified lymph node or cystic duct calculus causing extrinsic compression or a large sludge ball within the common bile duct (CBD), leading to dilatation of common hepatic duct and intrahepatic biliary system...
June 24, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28633861/optimization-of-magnetic-field-assisted-ultrasonication-for-the-disintegration-of-waste-activated-sludge-using-box-behnken-design-with-response-surface-methodology
#7
Su Guan, Feng Deng, Si-Qi Huang, Shu-Yang Liu, Le-Xian Ai, Pu-Ying She
This study investigated for the first time the feasibility of using a magnetic field for sludge disintegration. Approximately 41.01% disintegration degree (DD) was reached after 30min at 180mT magnetic field intensity upon separate magnetic field treatment. Protein and polysaccharide contents significantly increased. This test was optimized using a Box-Behnken design (BBD) with response surface methodology (RSM) to fit the multiple equation of the DD. The maximum DD was 43.75% and the protein and polysaccharide contents increased to 56...
September 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28623190/primary-tuberculosis-of-cystic-duct-lymph-node
#8
Aamir Ghazanfar, Afifa Asghar, Naqeeb Ullah Khan, Iram Hassan
Tuberculosis (TC) is very common and significant cause of morbidity and mortality worldwide. Isolated cystic duct lymph node TC cases without involvement of gallbladder are exceedingly rare. It is difficult to diagnose preoperatively because of lack of characteristic signs and symptoms of TC. We report a man aged 45 years who presented with right upper abdominal pain since 1week. It was associated with nausea and postprandial fullness. There was no evidence of jaundice and lymphadenopathy. Abdominal examination showed moderate right upper quadrant tenderness with positive Murphy's sign and splenomegaly but no signs of peritonism...
June 16, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28622653/surfactant-coupled-sonic-pretreatment-of-waste-activated-sludge-for-energetically-positive-biogas-generation
#9
U Ushani, J Rajesh Banu, K Tamilarasan, S Kavitha, Ick Tae Yeom
The objective of this study was to evaluate the effect of dioctyl sodium sulphosuccinate (DOSS, a surfactant) on lysis rate of sludge and specific energy required for sonic pretreatment of waste activated sludge (WAS). Different ultrasonic power levels, WAS concentrations, DOSS dosages, and specific energy levels were used to compare pretreatment efficiencies. At an optimum time of 10min with ultrasonic power level of 160W, DOSS coupled sonic pretreatment resulted in better lysis rate (24.7%) of sludge than sonic pretreatment (17...
October 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28601033/comparing-glow-discharge-plasma-and-ultrasound-treatment-for-improving-aerobic-respiration-of-activated-sludge
#10
Nina Van de Moortel, Rob Van den Broeck, Jan Degrève, Raf Dewil
In this paper, a new and innovative technique, glow discharge plasma, is introduced for the treatment of activated sludge, whereby its effect on sludge solubilization, settleability, floc structure and biomass activity for carbon removal and nitrification is investigated. The obtained results are compared to the use of ultrasound for activated sludge treatment, a technique known for its potential to enhancing biomass activity. Results indicate that ultrasound is up to 9 times more efficient in solubilizing activated sludge and disrupting the sludge floc...
May 24, 2017: Water Research
https://www.readbyqxmd.com/read/28586609/comparison-of-ultrasound-evaluation-of-patients-of-obstructive-jaundice-with-endoscopic-retrograde-cholangio-pancreatography-findings
#11
Syed Zea-Ul-Islam Farrukh, Arif Rasheed Siddiqui, Syed Afzal Haqqi, Asif Jan Muhammad, Abdul Samad Dheddi, Saad Khalid Khalid
BACKGROUND: Ultrasonography has proven to be quite effective in differentiating hepatocellular from obstructive cause of jaundice in various studies. This study was conducted with the aim to determine the efficacy of ultrasonography and Endoscopic Retrograde Cholangio-Pancreatography (ERCP) in the diagnosis of obstructive reason of jaundice. METHODS: In this descriptive case series, 200 patients with >15 years age of either gender with cholestatic liver enzymes were included, i...
October 2016: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28578813/multiclass-method-for-the-determination-of-pharmaceuticals-and-personal-care-products-in-compost-from-sewage-sludge-using-ultrasound-and-salt-assisted-liquid-liquid-extraction-followed-by-ultrahigh-performance-liquid-chromatography-tandem-mass-spectrometry
#12
A Luque-Muñoz, J L Vílchez, A Zafra-Gómez
An analytical method for the analysis of 16 pharmaceuticals and personal care products in compost from sewage sludge is successfully validated. Ultrasound assisted extraction with a mixture of acetonitrile:ethyl acetate (1:1, v/v) containing 10% (v/v) of acetic acid was carried out. Two cycles of extraction of 10min were applied. A clean-up of the extracts using salt-assisted liquid-liquid extraction (SALLE) was also included. Experimental design was used for the optimization of the main parameters involved in the extraction and cleaned-up steps...
May 26, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28550728/quantification-of-nitrous-oxide-in-wastewater-based-on-salt-induced-stripping
#13
Pascal Kosse, Manfred Lübken, Torsten C Schmidt, Marc Wichern
Monitoring nitrous oxide (N2O) emissions from wastewater treatment plants has attracted much attention in recent years demanding accurate and rapid quantification methods. In the present study a salt-assisted methodology is proposed by which N2O is chemically stripped out from wastewater and quantified by gas chromatography (GC-TCD) subsequently. Eight different inorganic salts have been evaluated for this purpose, likewise the application of ultrasound. By addition of sodium bromide (NaBr) the best recovery rate of about 98% (=1...
December 1, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28529051/ultrasound-assisted-biogas-production-from-co-digestion-of-wastewater-sludges-and-agricultural-wastes-comparison-with-microwave-pre-treatment
#14
B Aylin Alagöz, Orhan Yenigün, Ayşen Erdinçler
This study investigates the effect of ultrasonication and microwave sludge disintegration/pre-treatment techniques on the anaerobic co-digestion efficiency of wastewater sludges with olive and grape pomaces. The effects of both co-digestion and sludge pre-treatment techniques were evaluated in terms of the organic removal efficiency and the biogas production. The "co-digestion" of wastewater sludge with both types of pomaces was revealed to be a much more efficient way for the biogas production compared to the single (mono) sludge digestion...
May 11, 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28499592/risk-factors-for-poor-outcomes-of-children-with-acute-acalculous-cholecystitis
#15
Yi-An Lu, Cheng-Hsun Chiu, Man-Shan Kong, Han-I Wang, Hsun-Chin Chao, Chien-Chang Chen
BACKGROUND: Acute acalculous cholecystitis (AAC) is generally considered to be a mild disease in children; however, if left untreated or treated without caution, AAC can lead to severe outcomes, such as death. The objectives of this study were to present the clinical features and identify the predictors of mortality in pediatric AAC. METHODS: Patients diagnosed with AAC between 2005 and 2012 were enrolled. AAC was defined by the presence of fever and an echo-proven thickened gallbladder wall exceeding 4 mm...
March 25, 2017: Pediatrics and Neonatology
https://www.readbyqxmd.com/read/28475436/efficacy-of-methanogenic-biomass-acclimation-in-mesophilic-anaerobic-digestion-of-ultrasound-pretreated-sludge
#16
M C Gagliano, A Gallipoli, S Rossetti, C M Braguglia
Methanogenic biomass plays a key role with regard to methane production during anaerobic bioconversion of organic substrates. In this study, the effect of two different acclimated inocula on digestion performances was investigated by means of anaerobic batch tests on untreated and sonicated waste-activated sludge. Organics solubilization and removal kinetics, the abundance and physiological conditions of archaeal cells on ultimate methane yield were evaluated. The simultaneous presence of Methanosarcina and Methanosaeta in the archaeal biomass, the higher initial archaeal cells relative abundance and their occurrence in the aggregated forms were the main factors positively affecting the conversion into methane...
May 26, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28376638/transabdominal-collection-of-amniotic-fluid-sludge-and-identification-of-candida-albicans-intra-amniotic-infection
#17
Juan P Kusanovic, Roberto Romero, Carolina Martinovic, Karla Silva, Offer Erez, Eli Maymon, Francisco Díaz, Fernando Ferrer, Rafael Valdés, Víctor Córdova, Paula Vargas, María Elena Nilo, Patricio Le Cerf
A G3P2 patient who conceived while using an intrauterine contraceptive device (IUD) presented at 20 weeks of gestation with mild irregular uterine contractions and vaginal bleeding. Sonographic examination at admission showed the presence of dense amniotic fluid "sludge" and a long sonographic uterine cervix (42 mm). To assess the microbiologic significance of amniotic fluid "sludge", we performed a transabdominal amniocentesis. The procedure was performed under real-time ultrasound, and fluid resembling pus at gross examination was noted...
May 3, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28350710/physical-chemistry-of-bile-detailed-pathogenesis-of-cholelithiasis
#18
Malak Itani, Theodore J Dubinsky
Despite the overwhelming prevalence of cholelithiasis, many health care professionals are not familiar with the basic pathophysiology of gallstone formation. This article provides an overview of the biochemical pathways related to bile, with a focus on the physical chemistry of bile. We describe the important factors in bile synthesis and secretion that affect the composition of bile and consequently its liquid state. Within this biochemical background lies the foundation for understanding the clinical and sonographic manifestation of cholelithiasis, including the pathophysiology of cholesterol crystallization, gallbladder sludge, and gallstones...
September 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/28332173/combined-ultrasound-with-fenton-treatment-for-the-degradation-of-carcinogenic-polycyclic-aromatic-hydrocarbons-in-textile-dying-sludge
#19
Jian-Hao Zhang, Hai-Yuan Zou, Xun-An Ning, Mei-Qing Lin, Chang-Min Chen, Tai-Cheng An, Jian Sun
To develop an effective method to remove the toxic and carcinogenic polycyclic aromatic hydrocarbons (CPAHs) from textile dyeing sludge, five CPAHs were selected to investigate the degradation efficiencies using ultrasound combined with Fenton process (US/Fenton). The results showed that the synergistic effect of the US/Fenton process on the degradation of CPAHs in textile dyeing sludge was significant with the synergy degree of 30.4. During the US/Fenton process, low ultrasonic density showed significant advantage in degrading the CPAHs in textile dyeing sludge...
March 22, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28319766/sequential-ultrasound-and-low-temperature-thermal-pretreatment-process-optimization-and-influence-on-sewage-sludge-solubilization-enzyme-activity-and-anaerobic-digestion
#20
Patricio Neumann, Zenón González, Gladys Vidal
The influence of sequential ultrasound and low-temperature (55°C) thermal pretreatment on sewage sludge solubilization, enzyme activity and anaerobic digestion was assessed. The pretreatment led to significant increases of 427-1030% and 230-674% in the soluble concentrations of carbohydrates and proteins, respectively, and 1.6-4.3 times higher enzymatic activities in the soluble phase of the sludge. Optimal conditions for chemical oxygen demand solubilization were determined at 59.3kg/L total solids (TS) concentration, 30,500kJ/kg TS specific energy and 13h thermal treatment time using response surface methodology...
June 2017: Bioresource Technology
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