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https://www.readbyqxmd.com/read/28942191/improving-the-thermal-efficiency-of-a-jaggery-production-module-using-a-fire-tube-heat-exchanger
#1
Raul La Madrid, Elder Mendoza Orbegoso, Rafael Saavedra, Daniel Marcelo
Jaggery is a product obtained after heating and evaporation processes have been applied to sugar cane juice via the addition of thermal energy, followed by the crystallisation process through mechanical agitation. At present, jaggery production uses furnaces and pans that are designed empirically based on trial and error procedures, which results in low ranges of thermal efficiency operation. To rectify these deficiencies, this study proposes the use of fire-tube pans to increase heat transfer from the flue gases to the sugar cane juice...
September 21, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28940323/paired-comparison-of-therapeutic-plasma-exchange-using-the-fenwal-amicus-versus-terumobct-spectra-optia
#2
Edwin A Burgstaler, Sandra C Bryant, Jeffrey L Winters
PURPOSE: Terumo BCT Spectra Optia (O) and Fenwal Amicus (A) can perform therapeutic plasma exchange (TPE). We compared these systems in a prospective, randomized, crossover study of 81 paired procedures. Primary objective was to determine if there was a difference in platelet loss between the instruments. Secondary objectives were to determine differences in procedure time (PT), plasma removal efficiency (PRE 1), plasma removal rate (PRR), and fluid balance (FB). METHODS: Fifty-seven adults undergoing 162 procedures were included...
September 23, 2017: Journal of Clinical Apheresis
https://www.readbyqxmd.com/read/28933805/perioperative-administration-of-buffered-versus-non-buffered-crystalloid-intravenous-fluid-to-improve-outcomes-following-adult-surgical-procedures
#3
REVIEW
Sohail Bampoe, Peter M Odor, Ahilanandan Dushianthan, Elliott Bennett-Guerrero, Suzie Cro, Tong J Gan, Michael Pw Grocott, Michael Fm James, Michael G Mythen, Catherine Mn O'Malley, Anthony M Roche, Kathy Rowan, Edward Burdett
BACKGROUND: Perioperative fluid strategies influence clinical outcomes following major surgery. Many intravenous fluid preparations are based on simple solutions, such as normal saline, that feature an electrolyte composition that differs from that of physiological plasma. Buffered fluids have a theoretical advantage of containing a substrate that acts to maintain the body's acid-base status - typically a bicarbonate or a bicarbonate precursor such as maleate, gluconate, lactate, or acetate...
September 21, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28933222/altered-hippocampal-neurogenesis-during-the-first-7-days-after-a-fluid-percussion-traumatic-brain-injury
#4
Lee A Shapiro
Traumatic brain injury (TBI) is a devastating disorder causing negative outcomes in millions of people each year. Despite the alarming number of brain injuries and the long-term detrimental outcomes that can be associated with TBI, treatment options are lacking. Extensive investigation is underway, in hopes of identifying effective treatment strategies. Among the most state-of-the-art strategies is cell replacement therapy. TBI is a seemingly good candidate for cell replacement studies because there is often loss of neurons...
July 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28931548/fluid-replacement-modulates-oxidative-stress-but-not-nitric-oxide-mediated-cutaneous-vasodilation-and-sweating-during-prolonged-exercise-in-the-heat
#5
Brendan D McNeely, Robert D Meade, Naoto Fujii, Andrew J E Seely, Ronald J Sigal, Glen P Kenny
The roles of nitric oxide synthase (NOS), reactive oxygen species (ROS) and angiotensin II type 1 receptor (AT1R) activation in regulating cutaneous vasodilation and sweating during prolonged (≥60 min) exercise are currently unclear. Moreover, it remains to be determined whether fluid replacement (FR) modulates the above thermoeffector responses. To investigate, eleven young men completed 90-min of continuous moderate intensity (46% of VO2peak) cycling performed at a fixed rate of metabolic heat production of 600 W (No-FR condition)...
September 20, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28931393/successful-pregnancy-and-live-birth-from-a-hypogonadotropic-hypogonadism-woman-with-low-serum-estradiol-concentrations-despite-numerous-oocyte-maturations-a-case-report
#6
Kaori Matsumoto, Kazuhiko Imakawa, Chuyu Hayashi
BACKGROUND: The increase in serum estradiol (E2) concentrations during the follicular phase becomes the index of oocyte maturation in vivo. When ovarian stimulation is performed to hypogonadotropic hypogonadism (HH) patients with only follicle stimulating hormone (FSH), proper increase in serum E2 concentrations is not observed. Even if oocytes are obtained, which usually have low fertilization rate. In this report, we would like to present an unique case, in which under low E2 concentrations and without luteinizing hormone (LH) administration, numerous mature oocytes could be obtained and a healthy baby delivered...
September 20, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28929101/current-trends-in-volume-replacement-therapy-and-the-use-of-synthetic-colloids-in-small-animals-an-internet-based-survey-2016
#7
Ivayla D Yozova, Judith Howard, Nadja E Sigrist, Katja-Nicole Adamik
The use of synthetic colloids (SCs), particularly hydroxyethyl starch (HES), in people has changed in recent years following new evidence raising concerns about their efficacy and safety. Although fluid therapy guidelines for small animals are often extrapolated from human medicine, little information exists on current practice in veterinary medicine. The objective of the present study was to investigate current fluid selection, use of plasma volume expanders including SCs, and recent changes in their use in small animal practice...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28928007/removal-of-uremic-retention-products-by-hemodialysis-is-coupled-with-indiscriminate-loss-of-vital-metabolites
#8
Zhi-Hao Zhang, Jia-Rong Mao, Hua Chen, Wei Su, Yuan Zhang, Li Zhang, Dan-Qian Chen, Ying-Yong Zhao, Nosratola D Vaziri
BACKGROUND: Although dialysis ameliorates uremia and fluid and electrolytes disorders, annual mortality rate remains high in dialysis population reflecting its shortcoming in replacing renal function. Unlike the normal kidney, dialysis causes dramatic shifts in volume and composition of body fluids and indiscriminate removal of vital solutes. Present study was undertaken to determine the impact of hemodialysis on plasma metabolites in end-stage renal disease (ESRD) patients. METHODS: 80 hemodialysis patients and 80 age/gender-matched healthy controls were enrolled in the study...
September 16, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28922615/the-impact-of-incorporating-antimicrobials-into-implant-surfaces
#9
N J Hickok, I M Shapiro, A F Chen
With the increase in numbers of joint replacements, spinal surgeries, and dental implantations, there is an urgent need to combat implant-associated infection. In addition to stringent sterile techniques, an efficacious way to prevent this destructive complication is to create new implants with antimicrobial properties. Specifically, these implants must be active in the dental implant environment where the implant is bathed in the glycoprotein-rich salivary fluids that enhance bacterial adhesion, and propagation, and biofilm formation...
September 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28919008/immunoadsorption-in-neurological-disorders
#10
REVIEW
Satoru Oji, Kyoichi Nomura
In recent years, immunoadsorption has been increasingly recognized as an alternative to therapeutic plasma exchange and used for the treatment of neurological disorders such as Guillain-Barré syndrome, chronic inflammatory demyelinating polyneuropathy, myasthenia gravis, neuromyelitis optica spectrum disorders, and multiple sclerosis, as well as autoimmune encephalitis. Unlike therapeutic plasma exchange, which requires fluid replacement with a blood solution such as fresh frozen plasma or albumin, immunoadsorption is a blood purification technique that enables the selective removal of humoral factors from separated plasma through a high-affinity adsorbent with tryptophan or phenylalanine...
August 26, 2017: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/28914790/ancient-living-organisms-escaping-from-or-imprisoned-in-the-vents
#11
REVIEW
J Baz Jackson
We have recently criticised the natural pH gradient hypothesis which purports to explain how the difference in pH between fluid issuing from ancient alkali vents and the more acidic Hadean ocean could have driven molecular machines that catalyse reactions that are useful in prebiotic and autotrophic chemistry. In this article, we temporarily suspend our earlier criticism while we consider difficulties for primitive organisms to have managed their energy supply and to have left the vents and become free-living...
September 15, 2017: Life
https://www.readbyqxmd.com/read/28913489/cerebral-salt-wasting-syndrome-in-patients-with-minor-head-trauma-two-case-reports
#12
Gabriela Csipak, Natalia Hagau
We describe two polytrauma patients without severe head trauma who developed Cerebral Salt Wasting Syndrome (CSWS) during their stay in our ICU with natriuresis, hyponatremia and hypovolemia. Hyponatremia encountered in CSWS and the syndrome of inadequate antidiuretic hormone secretion (SIADH) is a common electrolyte finding in patients with severe head trauma, subarachnoid hemorrhage, malignancy and infections of the central nervous system. CSWS was an unexpected electrolyte finding in our patients with minor head trauma without neurological or neurosurgical problems...
October 2016: Rom J Anaesth Intensive Care
https://www.readbyqxmd.com/read/28904434/effect-of-double-filtration-plasmapheresis-on-various-plasma-components-and-patient-safety-a-prospective-observational-cohort-study
#13
K Jagdish, S Jacob, S Varughese, V G David, A Mohapatra, A Valson, K Tulsidas, T Veerasami, S Alexander
Double filtration plasmapheresis (DFPP) was historically used for blood group incompatible renal transplantation. Very few studies are available worldwide regarding its efficiency in removing specific plasma components, and safety. We conducted a prospective observational cohort study over 1 year on patients undergoing DFPP for various renal indications. There were 15 patients with 39 sessions. The pre- and post-procedure plasma samples of serum IgG, IgA, IgM, fibrinogen, calcium, phosphate, potassium, and magnesium were analyzed...
September 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/28900774/readmission-rate-after-ultrafiltration-in-acute-decompensated-heart-failure-a-systematic-review-and-meta-analysis
#14
REVIEW
Waqas Javed Siddiqui, Andrew R Kohut, Syed F Hasni, Jesse M Goldman, Benjamin Silverman, Ellie Kelepouris, Howard J Eisen, Sandeep Aggarwal
Significance of ultrafiltration in acute decompensated heart failure remains unclear. We performed meta-analysis to determine its role in reducing readmissions after acute decompensated heart failure. MEDLINE was searched using PUBMED from inception to March 22, 2017 for prospective randomized control trials comparing ultrafiltration to diuretics in acute decompensated heart failure. Five hundred ninety studies were found; nine studies with 820 patients were included. Studies with renal replacement therapy bar ultrafiltration, chronic decompensated heart failure, and non-English language were excluded...
September 13, 2017: Heart Failure Reviews
https://www.readbyqxmd.com/read/28888230/effect-of-supercritical-carbon-dioxide-on-the-enzymatic-production-of-biodiesel-from-waste-animal-fat-using-immobilized-candida-antarctica-lipase-b-variant
#15
Aldricho Alpha Pollardo, Hong-Shik Lee, Dohoon Lee, Sangyong Kim, Jaehoon Kim
BACKGROUND: Waste animal fat is a promising feedstock to replace vegetable oil that widely used in commercial biodiesel process, however the high content of free fatty acid in waste fat makes it unfeasible to be processed with commercial base-catalytic process. Enzymatic process is preferable to convert waste fat into biodiesel since enzyme can catalyze both esterification of free fatty acid and transesterification of triglyceride. However, enzymatic reaction still has some drawbacks such as lower reaction rates than base-catalyzed transesterification and the limitation of reactant concentration due to the enzyme inhibition of methanol...
September 9, 2017: BMC Biotechnology
https://www.readbyqxmd.com/read/28886084/an-in-vitro-simulation-method-for-the-tribological-assessment-of-complete-natural-hip-joints
#16
Dawn Groves, John Fisher, Sophie Williams
The use of hip joint simulators to evaluate the tribological performance of total hip replacements is widely reported in the literature, however, in vitro simulation studies investigating the tribology of the natural hip joint are limited with heterogeneous methodologies reported. An in vitro simulation system for the complete natural hip joint, enabling the acetabulum and femoral head to be positioned with different orientations whilst maintaining the correct joint centre of rotation, was successfully developed for this study...
2017: PloS One
https://www.readbyqxmd.com/read/28882107/statistical-classifiers-for-diagnosing-disease-from-immune-repertoires-a-case-study-using-multiple-sclerosis
#17
Jared Ostmeyer, Scott Christley, William H Rounds, Inimary Toby, Benjamin M Greenberg, Nancy L Monson, Lindsay G Cowell
BACKGROUND: Deep sequencing of lymphocyte receptor repertoires has made it possible to comprehensively profile the clonal composition of lymphocyte populations. This opens the door for novel approaches to diagnose and prognosticate diseases with a driving immune component by identifying repertoire sequence patterns associated with clinical phenotypes. Indeed, recent studies support the feasibility of this, demonstrating an association between repertoire-level summary statistics (e.g., diversity) and patient outcomes for several diseases...
September 7, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28880455/automated-cell-counts-on-csf-samples-a-multicenter-performance-evaluation-of-the-glocyte-system
#18
E A Hod, C Brugnara, M Pilichowska, L M Sandhaus, H S Luu, S K Forest, J C Netterwald, G M Reynafarje, A Kratz
OBJECTIVES: Automated cell counters have replaced manual enumeration of cells in blood and most body fluids. However, due to the unreliability of automated methods at very low cell counts, most laboratories continue to perform labor-intensive manual counts on many or all cerebrospinal fluid (CSF) samples. This multicenter clinical trial investigated if the GloCyte System (Advanced Instruments, Norwood, MA), a recently FDA-approved automated cell counter, which concentrates and enumerates red blood cells (RBCs) and total nucleated cells (TNCs), is sufficiently accurate and precise at very low cell counts to replace all manual CSF counts...
September 7, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28876594/salmonella-typhimurium-infected-abdominal-aortic-aneurysm-endovascular-repair-with-secondary-aortoenteric-fistula-formation
#19
M Dickfos, K Garnham, J Jenkins
Endovascular aneurysm repair (EVAR) is a widely accepted and used technique for the treatment of abdominal aortic aneurysms (AAA). However, it comes with a unique set of complications, two of the rarer being infection and aorto-enteric fistula formation. Due to the infrequency of the situation, there are currently no guidelines for their management. A 75-year-old male presented with vague abdominal pain and fevers. He was diagnosed with an infected abdominal aortic EVAR stent graft on computer tomography imaging...
September 2017: South African Journal of Surgery. Suid-Afrikaanse Tydskrif Vir Chirurgie
https://www.readbyqxmd.com/read/28873589/control-of-the-gastrointestinal-digestion-of-solid-lipid-nanoparticles-using-pegylated-emulsifiers
#20
Choongjin Ban, Myeongsu Jo, Seokwon Lim, Young Jin Choi
We prepared solid lipid nanoparticles (SLNs) with tristearin and various emulsifiers which had different chain length PEGs (10-100 times-repetition of ethylene glycol) to control their digestion fate in the gastrointestinal tract. Fabricated SLNs after acidic/high-ionic-strength media treatment were stable regardless of the ζ-potential (ZP) disappearance. Additionally, highly PEGylated SLNs successfully hindered the adsorption of both bile acid (BA) and lipase on the SLN surface, while lowly PEGylated SLNs interrupted that of only lipase...
January 15, 2018: Food Chemistry
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