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https://www.readbyqxmd.com/read/28818794/comprehensive-and-comparative-ecotoxicological-and-human-risk-assessment-of-polycyclic-aromatic-hydrocarbons-pahs-in-reef-surface-sediments-and-coastal-seawaters-of-iranian-coral-islands-persian-gulf
#1
Ali Ranjbar Jafarabadi, Alireza Riyahi Bakhtiari, Amirhossein Shadmehri Toosi
The concentration and spatial distribution along with ecotoxicological risk of 30 polycyclic aromatic hydrocarbons were investigated in the reef surface sediments (RSSs) and coastal seawater (CSW) of ten coral Islands from the Persian Gulf, Iran, in January 2015. For all sampling sites, assessment of ecological risk was undertaken using several approaches. Mean concentration of ∑30PAHs varied between 70 and 884ngL(-l) with an overall mean value of 464ngL(-l) in the CSW, while the RSS ranged from 274 to 1098ngg(-1)dw with a total average of 619ngg(-1)dw...
August 14, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28818316/predicting-in-hospital-mortality-in-patients-with-acute-coronary-syndrome-in-china
#2
Yong Peng, Xin Du, Kris D Rogers, Yangfeng Wu, Runlin Gao, Anushka Patel
Currently available risk scores (RSs) were derived from populations with very few participants from China. We aimed to develop an RS based on data from patients with acute coronary syndrome in China and to compare its performance with the commonly promoted Global Registry of Acute Coronary Events (GRACE) RS. Clinical Pathways for Acute Coronary Syndromes-Phase 2 was a trial of a quality improvement intervention in China. Patients recruited from 75 hospitals from October 2007 to August 2010 were divided into training and validation sets based on immediate or delayed implementation...
July 19, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28789844/impact-of-coronary-artery-disease-in-patients-undergoing-transfemoral-transcatheter-aortic-valve-implantation
#3
Jasmin Shamekhi, Anja Stundl, Marcel Weber, Fritz Mellert, Armin Welz, Eberhard Grube, Georg Nickenig, Nikos Werner, Jan-Malte Sinning
BACKGROUND: The impact of coronary artery disease (CAD) and revascularization on outcome in patients undergoing transcatheter aortic valve implantation (TAVI) has not been fully elucidated so far. OBJECTIVES: To assess whether the degree of CAD influences the prognosis of patients undergoing TAVI. METHODS: Before TAVI, all patients underwent revascularization of the proximal vessels or the left main stem if indicated (stenosis ≥70% or 50%, respectively)...
July 25, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28783073/an-rfid-indoor-positioning-algorithm-based-on-bayesian-probability-and-k-nearest-neighbor
#4
He Xu, Ye Ding, Peng Li, Ruchuan Wang, Yizhu Li
The Global Positioning System (GPS) is widely used in outdoor environmental positioning. However, GPS cannot support indoor positioning because there is no signal for positioning in an indoor environment. Nowadays, there are many situations which require indoor positioning, such as searching for a book in a library, looking for luggage in an airport, emergence navigation for fire alarms, robot location, etc. Many technologies, such as ultrasonic, sensors, Bluetooth, WiFi, magnetic field, Radio Frequency Identification (RFID), etc...
August 5, 2017: Sensors
https://www.readbyqxmd.com/read/28783047/adaptive-indoor-positioning-model-based-on-wlan-fingerprinting-for-dynamic-and-multi-floor-environments
#5
Iyad Husni Alshami, Noor Azurati Ahmad, Shamsul Sahibuddin, Firdaus Firdaus
The Global Positioning System demonstrates the significance of Location Based Services but it cannot be used indoors due to the lack of line of sight between satellites and receivers. Indoor Positioning Systems are needed to provide indoor Location Based Services. Wireless LAN fingerprints are one of the best choices for Indoor Positioning Systems because of their low cost, and high accuracy, however they have many drawbacks: creating radio maps is time consuming, the radio maps will become outdated with any environmental change, different mobile devices read the received signal strength (RSS) differently, and peoples' presence in LOS between access points and mobile device affects the RSS...
August 5, 2017: Sensors
https://www.readbyqxmd.com/read/28770070/relative-selection-strength-quantifying-effect-size-in-habitat-and-step-selection-inference
#6
Tal Avgar, Subhash R Lele, Jonah L Keim, Mark S Boyce
Habitat-selection analysis lacks an appropriate measure of the ecological significance of the statistical estimates-a practical interpretation of the magnitude of the selection coefficients. There is a need for a standard approach that allows relating the strength of selection to a change in habitat conditions across space, a quantification of the estimated effect size that can be compared both within and across studies. We offer a solution, based on the epidemiological risk ratio, which we term the relative selection strength (RSS)...
July 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28760723/impact-of-residual-syntax-score-on-clinical-outcomes-after-incomplete-revascularization-percutaneous-coronary-intervention-a-large-single-centre-study
#7
Ying Song, Zhan Gao, Xiaofang Tang, Ping Jiang, Jingjing Xu, Yi Yao, Jianxin Li, Xueyan Zhao, Shubin Qiao, Yuejin Yang, Runlin Gao, Bo Xu, Jinqing Yuan
AIMS: This study assessed the prognostic capacity of residual SYNTAX score (rSS) in a large cohort of patients undergoing percutaneous coronary intervention(PCI) in clinical practice. METHODS AND RESULTS: 10,344 consecutive patients were prospectively enrolled. Complete revascularization (CR; rSS=0), reasonable incomplete revascularization (RICR; 0 < rSS ≤ 8), and ICR (rSS > 8) were achieved in 5375 (51.9%), 3401 (32.9%), and 1568 (15.2%) patients. During 2-year follow-up, ICR patients had the highest incidences of major adverse cardiovascular and cerebrovascular events (MACCE; 20...
August 1, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28757536/comparison-of-anti-obesity-effect-between-two-types-of-syrup-containing-rare-sugars-in-wistar-rats
#8
Masaru Ochiai, Kohei Misaki, Takako Yamada, Tetsuo Iida, Kazuhiro Okuma, Tatsuhiro Matsuo
D-Allulose-containing rare sugar sweeteners have been categorized into two types, rare sugar syrup (RSS), consisting of 4 rare monosaccharides, and modified glucose syrup (MGS), rich in D-allulose, which was previously referred to D-psicose. The anti-obesity effect of RSS and D-allulose has been already clarified, but that of rare monosaccharides other than D-allulose in RSS has not yet been well understood. Here, we investigated and compared the anti-obesity effect of RSS and MGS in rats. Male Wistar rats were divided into 4 dietary groups: a high-sucrose control diet group (S), a high-fructose corn syrup diet group (HFCS), an RSS diet group (RSS), and an MGS diet group (MGS)...
2017: Journal of Nutritional Science and Vitaminology
https://www.readbyqxmd.com/read/28735774/trends-in-hepatitis-c-antibody-prevalence-among-aboriginal-and-torres-strait-islander-people-attending-australian-needle-and-syringe-programs-1996-2015
#9
Simon Graham, Lisa Maher, Handan Wand, Michael Doyle, Jenny Iversen
BACKGROUND: Research indicates that hepatitis C antibody (anti-HCV) prevalence is higher among Australian Aboriginal and Torres Strait Islander (Aboriginal) than non-Aboriginal people who inject drugs (PWID). We examined trends in demographic and drug use characteristics and anti-HCV prevalence among Australian Needle and Syringe Program Survey (ANSPS) respondents by Aboriginal status from 1996 to 2015. METHODS: The ANSPS survey involved collecting demographic, behavioural data and a dried blood spot for anti-HCV testing...
July 20, 2017: International Journal on Drug Policy
https://www.readbyqxmd.com/read/28728869/aesthetic-outcome-and-complications-of-simple-interrupted-versus-running-subcuticular-sutures-in-facial-surgery-a-randomized-controlled-trial
#10
Xiaomeng Liu, Patty J Nelemans, Lisa D S Frenk, Helma Sengers, Stephania M H Tuinder, Peter M Steijlen, Klara Mosterd, Nicole W J Kelleners-Smeets
BACKGROUND: The suturing technique and its associated complications could affect cosmetic outcome after facial surgery. Literature on this topic is limited. OBJECTIVE: To compare the cosmetic results 12 months after treatment and complications associated with simple interrupted sutures (SIS) versus running subcuticular sutures (RSS) in facial surgery. METHODS: A randomized, controlled multicenter trial was performed. Adults receiving dermatologic surgery on the face were randomized to receive SIS or RSS for wound closure...
July 17, 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28724770/rgs-cam-detects-and-counteracts-viral-rna-silencing-suppressors-in-plant-immune-priming
#11
Eun Jin Jeon, Kazuki Tadamura, Taiki Murakami, Jun-Ichi Inaba, Bo Min Kim, Masako Sato, Go Atsumi, Kazuyuki Kuchitsu, Chikara Masuta, Kenji S Nakahara
Primary infection of a plant with a pathogen that causes high accumulation of salicylic acid in the plant typically via a hypersensitive response confers enhanced resistance against secondary infection with a broad spectrum of pathogens, including viruses. This phenomenon is called systemic acquired resistance (SAR), which is a plant-priming for adaption to repeated biotic stress. However, the molecular mechanisms of SAR-mediated enhanced inhibition, especially of virus infection, remain unclear. Here, we show that SAR against cucumber mosaic virus (CMV) in tobacco plants (Nicotiana tabacum) involves a calmodulin-like protein, rgs-CaM...
July 19, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28711187/development-of-an-in-vitro-diaphragm-motion-reproduction-system
#12
Ai-Ho Liao, Ho-Chiao Chuang, Ming-Chih Shih, Hsiao-Yu Hsu, Der-Chi Tien, Chia-Chun Kuo, Shiu-Chen Jeng, Jeng-Fong Chiou
This study developed an in vitro diaphragm motion reproduction system (IVDMRS) based on noninvasive and real-time ultrasound imaging to track the internal displacement of the human diaphragm and diaphragm phantoms with a respiration simulation system (RSS). An ultrasound image tracking algorithm (UITA) was used to retrieve the displacement data of the tracking target and reproduce the diaphragm motion in real time using a red laser to irradiate the diaphragm phantom in vitro. This study also recorded the respiration patterns in 10 volunteers...
July 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28708067/enhanced-handover-decision-algorithm-in-heterogeneous-wireless-network
#13
Radhwan Mohamed Abdullah, Zuriati Ahmad Zukarnain
Transferring a huge amount of data between different network locations over the network links depends on the network's traffic capacity and data rate. Traditionally, a mobile device may be moved to achieve the operations of vertical handover, considering only one criterion, that is the Received Signal Strength (RSS). The use of a single criterion may cause service interruption, an unbalanced network load and an inefficient vertical handover. In this paper, we propose an enhanced vertical handover decision algorithm based on multiple criteria in the heterogeneous wireless network...
July 14, 2017: Sensors
https://www.readbyqxmd.com/read/28695379/expression-of-prostaglandin-e2-receptor-subtypes-in-human-pterygium-and-normal-conjunctiva-immunohistochemical-study
#14
Erdem Dinç, Özer Dursun, Banu Yılmaz, Mustafa Vatansever, A Ayça Sarı, Özlem Yıldırım, Ufuk Adıgüzel
PURPOSE: In the present study, we aimed to evaluate the expression of EP receptors in primary and recurrent human pterygium tissues. METHODS: Pterygium samples were collected from 65 patients with primary pterygium and 16 patients with recurrent pterygium. Normal conjunctival tissues were collected from nasal interpalpebral area from 17 patients without systemic and any other ocular pathology. Expression of EP receptors was evaluated by immunohistochemistry. The median value for each receptor staining score (RSS) was determined in normal conjunctival specimens...
July 10, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28694431/key-role-for-the-organic-anion-transporters-oat1-and-oat3-in-the-in-vivo-handling-of-uremic-toxins-and-solutes
#15
Wei Wu, Kevin T Bush, Sanjay K Nigam
In vitro data indicates that the kidney proximal tubule (PT) transporters of uremic toxins and solutes (e.g., indoxyl sulfate, p-cresol sulfate, kynurenine, creatinine, urate) include two "drug" transporters of the organic anion transporter (OAT) family: OAT1 (SLC22A6, originally NKT) and OAT3 (SLC22A8). Here, we have examined new and prior metabolomics data from the Oat1KO and Oat3KO, as well as newly obtained metabolomics data from a "chemical double" knockout (Oat3KO plus probenecid). This gives a picture of the in vivo roles of OAT1 and OAT3 in the regulation of the uremic solutes and supports the centrality of these "drug" transporters in independently and synergistically regulating uremic metabolism...
July 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28693733/a-fluorescent-dyad-with-large-emission-shift-for-discrimination-of-cysteine-homocysteine-from-glutathione-and-hydrogen-sulfide-and-the-application-of-bioimaging
#16
Xueling Yang, Longwei He, Kaixin Xu, Weiying Lin
Biothiols, as reactive sulfur species (RSS), play important roles in human physiology, and they have a close connection of generation and metabolism pathways among of them. It is challenging to discriminate biothiols from each other due to the similar chemical structures and properties of them. Herein, we develop a fluorescent hybrid dyad (CS-NBD) for efficiently discriminating cysteine (Cys)/homocysteine (Hcy) from glutathione (GSH) and hydrogen sulfide (H2S) by a dual-channel detection method. CS-NBD performs inherently no fluorescence in ranging from visible to near infrared region...
August 15, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28661910/determination-of-reynolds-shear-stress-level-for-hemolysis
#17
Choon-Sik Jhun, Megan A Stauffer, John D Reibson, Eric E Yeager, Raymond K Newswanger, Joshua O Taylor, Keefe B Manning, William J Weiss, Gerson Rosenberg
Reynolds shear stress (RSS) has served as a metric for the effect of turbulence on hemolysis. Forstrom (1969) and Sallam and Hwang (1984) determined the RSS threshold for hemolysis to be 50,000 and 4,000 dyne/cm, respectively, using a turbulent jet. Despite the order of magnitude discrepancy, the threshold by Sallam and Hwang has been frequently cited for hemolytic potential in blood pumps. We recreated Sallam apparatus (SA) to resolve this discrepancy and provide additional data to be used in developing a more accurate hemolysis model...
June 15, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28656172/sulfide-homeostasis-and-nitroxyl-intersect-via-formation-of-reactive-sulfur-species-in-staphylococcus-aureus
#18
Hui Peng, Jiangchuan Shen, Katherine A Edmonds, Justin L Luebke, Anne K Hickey, Lauren D Palmer, Feng-Ming James Chang, Kevin A Bruce, Thomas E Kehl-Fie, Eric P Skaar, David P Giedroc
Staphylococcus aureus is a commensal human pathogen and a major cause of nosocomial infections. As gaseous signaling molecules, endogenous hydrogen sulfide (H2S) and nitric oxide (NO·) protect S. aureus from antibiotic stress synergistically, which we propose involves the intermediacy of nitroxyl (HNO). Here, we examine the effect of exogenous sulfide and HNO on the transcriptome and the formation of low-molecular-weight (LMW) thiol persulfides of bacillithiol, cysteine, and coenzyme A as representative of reactive sulfur species (RSS) in wild-type and ΔcstR strains of S...
May 2017: MSphere
https://www.readbyqxmd.com/read/28641437/structure-and-binding-energy-of-the-h2s-dimer-at-the-ccsd-t-complete-basis-set-limit
#19
Kono H Lemke
This study presents results for the binding energy and geometry of the H2S dimer which have been computed using Møller-Plesset perturbation theory (MP2, MP4) and coupled cluster (CCSD, CCSD(T)) calculations with basis sets up to aug-cc-pV5Z. Estimates of De, EZPE, Do, and dimer geometry have been obtained at each level of theory by taking advantage of the systematic convergence behavior toward the complete basis set (CBS) limit. The CBS limit binding energy values of De are 1.91 (MP2), 1.75 (MP4), 1.41 (CCSD), and 1...
June 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28637792/reactive-sulfur-species-inactivate-ca-2-calmodulin-dependent-protein-kinase-iv-via-s-polysulfidation-of-its-active-site-cysteine-residue
#20
Tsuyoshi Takata, Hideshi Ihara, Naoya Hatano, Yukihiro Tsuchiya, Takaaki Akaike, Yasuo Watanabe
Reactive sulfur species (RSS) modulate protein functions via S-polysulfidation of reactive Cys residues. Here, we report that Ca(2+)/calmodulin (CaM)-dependent protein kinase IV (CaMKIV) was reversibly inactivated by RSS via polysulfidation of the active-site Cys residue. CaMKIV is phosphorylated at Thr(196) by its upstream CaMK kinase (CaMKK), resulting in the induction of its full activity. In vitro incubation of CaMKIV with the exogenous RSS donors Na2S n (n = 2-4) resulted in dose-dependent inhibition of the CaMKK-induced phospho-Thr(196) and consequent inactivation of the enzyme activity...
July 17, 2017: Biochemical Journal
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