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https://www.readbyqxmd.com/read/29168718/critical-flux-investigation-in-treating-o-w-emulsion-by-tio2-al2o3-pvdf-uf-membrane
#1
Xuesong Yi, Yong Wang, Limei Jin, Wenxin Shi
A standard transmembrane pressure (TMP) step method has been used in membrane fouling assessment in tube ultrafiltration (UF) membrane system treating oil water (o/w) emulsion operated at constant TMP. Three flux reduction curve with different o/w concentration based on TMP variation were concluded by experiment, then, to describe fouling behavior and identify the occurrence of fouling in the so-called critical flux. Furthermore, sub-critical and super-critical flux experiment with a long time was determined, and zero rate of flux reduction (dF/dt) was never found during the whole trial period, indicating that critical flux in o/w UF process with its strict definition could not be defined in this paper...
November 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/29168575/cuffed-vs-uncuffed-tracheal-tubes-in-children-a-randomised-controlled-trial-comparing-leak-tidal-volume-and-complications
#2
N A Chambers, A Ramgolam, D Sommerfield, G Zhang, T Ledowski, M Thurm, M Lethbridge, M Hegarty, B S von Ungern-Sternberg
Cuffed tracheal tubes are increasingly used in paediatric anaesthetic practice. This study compared tidal volume and leakage around cuffed and uncuffed tracheal tubes in children who required standardised mechanical ventilation of their lungs in the operating theatre. Children (0-16 years) undergoing elective surgery requiring tracheal intubation were randomly assigned to receive either a cuffed or an uncuffed tracheal tube. Assessments were made at five different time-points: during volume-controlled ventilation 6 ml...
November 23, 2017: Anaesthesia
https://www.readbyqxmd.com/read/29168559/time-to-stop-using-uncuffed-tracheal-tubes-in-children
#3
EDITORIAL
C R Bailey
No abstract text is available yet for this article.
November 23, 2017: Anaesthesia
https://www.readbyqxmd.com/read/29168351/complement-5a-mediated-trophoblasts-dysfunction-is-involved-in-the-development-of-pre-eclampsia
#4
Yu Ma, Ling-Ran Kong, Qian Ge, Yuan-Yuan Lu, Mo-Na Hong, Yu Zhang, Cheng-Chao Ruan, Ping-Jin Gao
Pre-eclampsia (PE) is a life-threatening multisystem disorder leading to maternal and neonatal mortality and morbidity. Emerging evidence showed that activation of the complement system is implicated in the pathological processes of PE. However, little is known about the detailed cellular and molecular mechanism of complement activation in the development of PE. In this study, we reported that complement 5a (C5a) plays a pivotal role in aberrant placentation, which is essential for the onset of PE. We detected an elevated C5a deposition in macrophages and C5a receptor (C5aR) expression in trophoblasts of pre-eclamptic placentas...
November 23, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29168230/routine-guide-wire-application-facilitates-cholangioscopy-in-the-management-of-postoperative-residual-hepatolithiasis
#5
Xu-Dong Wen, Le Xiao, Tao Wang, Nalu Navarro-Alvarez, Wei-Hui Liu
OBJECTIVES: Although postoperative cholangioscopy (POC) is considered to be an effective treatment for residual hepatolithiasis after surgery, its security and validity still needs to be improved. This study compared wire-guided POC (WG-POC) versus traditional POC (T-POC) in the management of patients with residual hepatolithiasis. METHODS: This retrospective study included a total of 203 patients who suffered from hepatolithiasis and underwent hepatectomy as initial intervention from January 1, 2016, to January 1, 2017...
November 23, 2017: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/29167985/short-term-outcome-after-cystectomy-comparison-of-early-oral-feeding-in-an-enhanced-recovery-protocol-and-feeding-using-bengmark-nasojejunal-tube
#6
C S Voskuilen, E E Fransen van de Putte, J Bloos-van der Hulst, E van Werkhoven, W M de Blok, B W G van Rhijn, S Horenblas, R P Meijer
PURPOSE: Cystectomy for bladder cancer is associated with a high risk of postoperative complications. Standardized perioperative protocols, such as enhanced recovery after surgery (ERAS) protocols, aim to improve postoperative outcome. Postoperative feeding strategies are an important part of these protocols. In this two-centre study, we compared complications and length of hospital stay (LOS) between an ERAS protocol with early oral nutrition and a protocol with early enteral feeding with a Bengmark nasojejunal tube...
November 22, 2017: World Journal of Urology
https://www.readbyqxmd.com/read/29167606/results-of-operative-4-in-1-patella-realignment-in-children-with-recurrent-patella-instability
#7
Francesc Malagelada, Ole Rahbek, Cyrus Sahirad, Manoj Ramachandran
Purpose: Recurrent patellar instability is a cause of knee dysfunction, limitation and pain for children. If nonoperative treatment fails to stabilise the patella, operative realignment and stabilisation have been advocated. Operative techniques in the paediatric population must preserve physeal growth while ensuring stability. We aimed to determine the outcome of children and adolescents who underwent a 4-in-1 patellar realignment (lateral release, medial reefing, Insall tube realignment and Roux-Goldthwaite patella ligament transfer)...
March 2018: Journal of Orthopaedics
https://www.readbyqxmd.com/read/29167540/water-and-blood-repellent-flexible-tubes
#8
Sasha Hoshian, Esko Kankuri, Robin H A Ras, Sami Franssila, Ville Jokinen
A top-down scalable method to produce flexible water and blood repellent tubes is introduced. The method is based on replication of overhanging nanostructures from an aluminum tube template to polydimethylsiloxane (PDMS) via atomic layer deposition (ALD) assisted sacrificial etching. The nanostructured PDMS/titania tubes are superhydrophobic with water contact angles 163 ± 1° (advancing) and 157 ± 1° (receding) without any further coating. Droplets are able to slide through a 4 mm (inner diameter) tube with low sliding angles of less than 10° for a 35 µL droplet...
November 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29167499/a-novel-multiplex-hrm-assay-to-detect-clopidogrel-resistance
#9
Lichen Zhang, Xiaowei Ma, Guoling You, Xiaoqing Zhang, Qihua Fu
Clopidogrel is an antiplatelet medicine used to prevent blood clots in patients who have had a heart attack, stroke, or other symptoms. Variability in the clinical response to clopidogrel treatment has been attributed to genetic factors. In particular, five SNPs of rs4244285, rs4986893, rs12248560, rs662 and rs1045642 have been associated with resistance to clopidogrel therapy in Chinese population. This work involves the development of a multiplex high-resolution melting (HRM) assay to genotype all five of these loci in 2 tubes...
November 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29167320/mapks-influence-pollen-tube-growth-by-controlling-the-formation-of-phosphatidylinositol-4-5-bisphosphate-in-an-apical-plasma-membrane-domain
#10
Franziska Hempel, Irene Stenzel, Mareike Heilmann, Praveen Krishnamoorthy, Wilhelm Menzel, Ralph Golbik, Stefan Helm, Dirk Dobritzsch, Sacha Baginsky, Justin Lee, Wolfgang Hoehenwarter, Ingo Heilmann
An apical plasma membrane domain enriched in the regulatory phospholipid phosphatidylinositol 4,5-bisphosphate (PtdIns(4,5)P2) is critical for polar tip growth of pollen tubes. How the biosynthesis of PtdIns(4,5)P2 by phosphatidylinositol 4-phosphate 5-kinases (PI4P 5-kinases) is controlled by upstream signaling is currently unknown. The pollen-expressed PI4P 5-kinase PIP5K6 is required for clathrin-mediated endocytosis and polar tip growth in pollen tubes. Here, we identify PIP5K6 as a target of the pollen-expressed mitogen-activated protein kinase MPK6 and characterize the regulatory effects...
November 22, 2017: Plant Cell
https://www.readbyqxmd.com/read/29167075/provider-beliefs-regarding-early-mobilization-in-the-pediatric-intensive-care-unit
#11
Christine L Joyce, Cosme Taipe, Brittany Sobin, Marissa Spadaro, Batsheva Gutwirth, Larissa Elgin, Gabrielle Silver, Bruce M Greenwald, Chani Traube
PURPOSE: Critically ill patients are at risk for short and long term morbidity. Early mobilization (EM) of critically ill adults is safe and feasible, with improvement in outcomes. There are limited studies evaluating EM in pediatric critical care patients. Provider beliefs and concerns must be evaluated prior to EM implementation in the pediatric intensive care unit (PICU). DESIGN AND METHODS: A survey was distributed to PICU providers assessing beliefs and concerns with regards to EM of PICU patients...
October 14, 2017: Journal of Pediatric Nursing
https://www.readbyqxmd.com/read/29166039/segmental-dynamics-of-polyethylene-alt-propylene-studied-by-nmr-spin-echo-techniques
#12
A Lozovoi, C Mattea, M Hofmann, K Saalwaechter, N Fatkullin, S Stapf
Segmental dynamics of a highly entangled melt of linear polyethylene-alt-propylene with a molecular weight of 200 kDa was studied with a novel proton nuclear magnetic resonance (NMR) approach based upon (1)H → (2)H isotope dilution as applied to a solid-echo build-up function I(SE)(t), which is constructed from the NMR spin echo signals arising from the Hahn echo (HE) and two variations of the solid-echo pulse sequence. The isotope dilution enables the separation of inter- and intramolecular contributions to this function and allows one to extract the segmental mean-squared displacements in the millisecond time range, which is hardly accessible by other experimental methods...
June 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/29165750/our-experience-in-the-management-of-csf-otorrhea-a-transmastoid-approach-with-middle-ear-cavity-obliteration-and-a-middle-cranial-fossa-approach
#13
Asli Cakir Cetin, Nuri Karabay, Enis Alpin Guneri
In this report, we present two cases of patients with cerebrospinal fluid (CSF) otorrhea who underwent surgical repair through either a transmastoid or middle cranial fossa approach. In our first case, a 34-year-old male after head trauma with conductive hearing loss and a House-Brackmann grade 2 facial palsy was found to have a soft tissue mass protruding through his right tympanic membrane. Radiological examination revealed a wide tegmen tympani defect. He underwent surgery via a transmastoid approach with repair of the defect and blind sac closure of the external auditory canal after middle ear cavity obliteration...
November 1, 2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/29165483/ion-chemistry-at-elevated-ion-molecule-interaction-energies-in-a-selected-ion-flow-drift-tube-reactions-of-h3o-no-and-o2-with-saturated-aliphatic-ketones
#14
Anatolii Spesyvyi, David Smith, Patrik Španěl
The reactions of H3O(+), NO(+) and O2(+) ions with a homologous series of six aliphatic ketones, viz. acetone through 2-octanone, have been investigated in a helium-buffered selected ion flow-drift tube, SIFDT, in order to reveal their dependencies on ion-molecule interaction energies, Er, and to gain insight into their mechanisms. The ultimate motivation is to allow analysis and absolute quantification of trace amounts of ketones and other volatile organic compounds in air using selected ion flow-drift tube mass spectrometry, SIFDT-MS...
November 22, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29165338/action-of-monomeric-gemini-surfactants-on-free-cells-and-biofilm-of-asaia-lannensis
#15
Anna Koziróg, Dorota Kręgiel, Bogumił Brycki
We investigated the biological activity of surfactants based on quaternary ammonium compounds: gemini surfactant hexamethylene-1,6-bis-(N,N-dimethyl-N-dodecylammonium bromide) (C6), synthesized by the reaction of N,N-dimethyl-N-dodecylamine with 1,6-dibromohexane, and its monomeric analogue dodecyltrimethylammonium bromide (DTAB). The experiments were performed with bacteria Asaia lannensis, a common spoilage in the beverage industry. The minimal inhibitory concentration (MIC) values were determined using the tube standard two-fold dilution method...
November 22, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29165311/should-nasal-function-be-considered-prior-to-tympanoplasty
#16
Metin Yüksel Akyıldız, Ömer Afşın Özmen, Uygar Levent Demir, Fikret Kasapoğlu, Hamdi Hakan Coşkun, Oğuz İbrahim Basut, Deniz Sığırlı
OBJECTIVE: To evaluate the association between nasal airway function and Eustachian tube (ET) functions and their impact on tympanoplasty in patients with chronic suppurative otitis media (CSOM). MATERIALS AND METHODS: The study group (CSOM group) consisted of 33 patients scheduled to undergo tympanoplasty for CSOM. Two control groups were formed: a nasal septal deviation (NSD) group of 25 patients scheduled to undergo nasal surgery for NSD, and a control group of 25 healthy individuals with no otologic or rhinologic symptoms...
November 21, 2017: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/29164381/assessment-of-micro-dose-biplanar-radiography-in-lower-limb-measurements-in-children
#17
Héloïse Lerisson, Élisa Amzallag-Bellenger, Aurélie Cebulski-Delebarre, Eric Nectoux, Geoffrey Desmulliez, Alain Duhamel, Elodie Drumez, Bernard Herbaux, Nathalie Boutry
OBJECTIVES: To evaluate in children microdose protocol compared with low dose for lower limb alignment (LLA) measurements on biplanar radiography. METHODS: Children 6 years or older were included. Height, weight and hip width were measured prior to imaging. Hip width allowed classifying children into morphotype M1 (width <25 cm), M2 (25-35 cm) or M3 (>35 cm) corresponding to predefined acquisition parameters (kV, mA, tube speed). Micro- and low-dose protocols were used alternately, with simultaneous acquisition of frontal and lateral radiographs...
November 21, 2017: European Radiology
https://www.readbyqxmd.com/read/29164111/cartilage-and-muscle-cell-fate-and-origins-during-lizard-tail-regeneration
#18
Ricardo Londono, Wei Wenzhong, Bing Wang, Rocky S Tuan, Thomas P Lozito
Introduction: Human cartilage is an avascular tissue with limited capacity for repair. By contrast, certain lizards are capable of musculoskeletal tissue regeneration following tail loss throughout all stages of their lives. This extraordinary ability is the result of a complex process in which a blastema forms and gives rise to the tissues of the regenerate. Blastemal cells have been shown to originate either from dedifferentiated tissues or from existing progenitor cells in various species, but their origin has not been determined in lizards...
2017: Frontiers in Bioengineering and Biotechnology
https://www.readbyqxmd.com/read/29163438/culture-strategies-for-isolation-of-fastidious-leptospira-serovar-hardjo-and-molecular-differentiation-of-genotypes-hardjobovis-and-hardjoprajitno
#19
Roberta T Chideroli, Daniela D Gonçalves, Suelen A Suphoronski, Alice F Alfieri, Amauri A Alfieri, Admilton G de Oliveira, Julio C de Freitas, Ulisses de Padua Pereira
The Leptospira serovar Hedjo belongs to the serogroup sejroe and this serovar is the most prevalent in bovine herds worldwide. The sejroe serogroup is the most frequently detected by serology in Brazilian cattle herds suggesting that it is due serovar Hardjo. In the molecular classification, this serovar has two genotypes: Hardjobovis and Hardjoprajitno. This serovar is as considered as fastidious pathogens, and their isolation is one of the bottlenecks in leptospirosis laboratories. In addition, its molecular characterization using genomic approaches is oftentimes not simple and time-consuming...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29163180/risk-factors-of-hypersensitivity-to-carboplatin-in-patients-with-gynecologic-malignancies
#20
Yu-Hsiao Tai, Yi-Jou Tai, Heng-Cheng Hsu, Shu-Ping Lee, Yun-Yuan Chen, Ying-Cheng Chiang, Yu-Li Chen, Chi-An Chen, Wen-Fang Cheng
We evaluated the prevalence of and risk factors for hypersensitivity reactions related to carboplatin, which is commonly used to treat gynecological malignancies. All women with pathologically documented ovarian, fallopian tube, or primary peritoneal cancer treated with carboplatin alone or a carboplatin-based combination chemotherapy regimen at a single hospital between January 2006 and December 2013 were retrospectively recruited. We analyzed the incidence, characteristics, risk factors, management, and outcomes of carboplatin-related hypersensitivity reactions among these patients...
2017: Frontiers in Pharmacology
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