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https://www.readbyqxmd.com/read/28543274/diel-and-seasonal-movements-of-silver-eels-anguilla-dieffenbachii-emigrating-from-a-lake-subject-to-hydro-electric-control
#1
D J Jellyman, M J Unwin
To investigate the behaviour and fate of silver female longfin eels Anguilla dieffenbachii in relation to flow variations from New Zealand's largest (700 MW) hydro-electric station, 210 A. dieffenbachii were tagged with acoustic transmitters during summer and autumn over 6 years from 2005 to 2010. A shoreline array of receivers (2005-2008) was supplemented by positioning systems near the power station and natural outlet (2009-2010) that enabled continuous tracking of A. dieffenbachii within these areas...
May 22, 2017: Journal of Fish Biology
https://www.readbyqxmd.com/read/28541716/investigational-bet-bromodomain-protein-inhibitors-in-early-stage-clinical-trials-for-acute-myelogenous-leukemia-aml
#2
Thorsten Braun, Claude Gardin
Acute myelogenous leukemia (AML) is a heterogeneous group of malignancies driven by genetic mutations and deregulated epigenetic control. Relapse/refractory disease remains frequent in younger patients and even more so in older patients, including treatment with epigenetic drugs in this age group, mainly with hypomethylating agents. New treatment strategies are urgently needed. The recent discovery that epigenetic readers of the bromodomain (BRD) and extraterminal (BET) protein family, are crucial for AML maintenance by transcription of oncogenic c-MYC lead to rapid development of BET inhibitors entering clinical trials...
May 25, 2017: Expert Opinion on Investigational Drugs
https://www.readbyqxmd.com/read/28540557/dissolution-of-steel-slags-in-aqueous-media
#3
Shashikant Yadav, Anurag Mehra
Steel slag is a major industrial waste in steel industries, and its dissolution behavior in water needs to be characterized in the larger context of its potential use as an agent for sequestering CO2. For this purpose, a small closed system batch reactor was used to conduct the dissolution of steel slags in an aqueous medium under various dissolution conditions. In this study, two different types of steel slags were procured from steel plants in India, having diverse structural features, mineralogical compositions, and particle sizes...
May 25, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28539459/social-bet-hedging-in-vampire-bats
#4
Gerald G Carter, Damien R Farine, Gerald S Wilkinson
Helping kin or nonkin can provide direct fitness benefits, but helping kin also benefits indirect fitness. Why then should organisms invest in cooperative partnerships with nonkin, if kin relationships are available and more beneficial? One explanation is that a kin-limited support network is too small and risky. Even if additional weaker partnerships reduce immediate net cooperative returns, individuals extending cooperation to nonkin can maintain a larger social network which reduces the potential costs associated with losing a primary cooperation partner...
May 2017: Biology Letters
https://www.readbyqxmd.com/read/28539374/bet-3-in-septic-patients-requiring-fluid-resuscitation-can-the-bedside-lung-ultrasound-be-used-to-assess-the-pulmonary-fluid-status
#5
Alain Judith, Maude St-Onge
A short cut review was carried out to see if the presence of 'B lines' detected on lung ultrasound could be used to guide the volume of fluid replacement necessary in the resuscitation of the patient with sepsis. Four papers with some degree of relevance were found in the literature search. The author, date and country of publication, patient group studied, study type, relevant outcomes, results study weaknesses of these papers are tabulated. Although a promising concept, the remains a paucity of good quality evidence sufficient to recommend this approach...
June 2017: Emergency Medicine Journal: EMJ
https://www.readbyqxmd.com/read/28539373/bet-2-pre-hospital-finger-thoracostomy-in-patients-with-chest-trauma
#6
Pritchard Jodie, Hogg Kerstin
A short cut review was carried out to see if 'finger' thoracostomy is a safe and effective method of treating a tension pneumothorax in a pre-hospital setting. Five relevant papers were found looking at this technique in the pre-hospital setting. The author, date and country of publication, patient group studied, study type, relevant outcomes, results study weaknesses of these papers are tabulated. This technique appears to be safe and effective when performed by trained physicians in a pre-hospital setting...
June 2017: Emergency Medicine Journal: EMJ
https://www.readbyqxmd.com/read/28539372/toward-evidence-based-emergency-medicine-best-bets-from-the-manchester-royal-infirmary
#7
Craig Ferguson
No abstract text is available yet for this article.
June 2017: Emergency Medicine Journal: EMJ
https://www.readbyqxmd.com/read/28538429/diffusion-of-pa-innovation-risk-taking-vs-safe-bet
#8
Christine M Everett, Alicia Quella
The physician assistant (PA) profession is a health workforce innovation. This article discusses whether, after 50 years, the PA profession is still an innovation.
June 2017: JAAPA: Official Journal of the American Academy of Physician Assistants
https://www.readbyqxmd.com/read/28536035/seasonality-can-induce-coexistence-of-multiple-bet-hedging-strategies-in-dictyostelium-discoideum-via-storage-effect
#9
Ricardo Martínez-García, Corina E Tarnita
The social amoeba Dictyostelium discoideum has been recently suggested as an example of bet-hedging in microbes. In the presence of resources, amoebae reproduce as unicellular organisms. Resource depletion, however, leads to a starvation phase in which the population splits between aggregators, which form a fruiting body made of a stalk and resistant spores, and non-aggregators, which remain as vegetative cells. Spores are favored when starvation periods are long, but vegetative cells can exploit resources in environments where food replenishes quickly...
May 20, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28535045/bet-bromodomain-inhibitors-with-one-step-synthesis-discovered-from-virtual-screen
#10
Alex M Ayoub, Laura M L Hawk, Ryan J Herzig, Jiewei Jiang, Andrea J Wisniewski, Clifford T Gee, Peiliang Zhao, Jin-Yi Zhu, Norbert Berndt, Nana K Offei-Addo, Thomas G Scott, Jun Qi, James E Bradner, Timothy R Ward, Ernst Schönbrunn, Gunda I Georg, William C K Pomerantz
Chemical inhibition of epigenetic regulatory proteins BrdT and Brd4 is emerging as a promising therapeutic strategy in contraception, cancer, and heart disease. We report an easily synthesized dihydropyridopyrmidine pan-BET inhibitor scaffold, which was uncovered via a virtual screen followed by testing in a fluorescence anisotropy assay. Dihydropyridpyimidine 3 was subjected to further characterization and is highly selective for the BET family of bromodomains. Structure-activity relationship data and ligand deconstruction highlight the importance of the substitution of the uracil moiety for potency and selectivity...
May 23, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28534298/formulation-and-in-vitro-characterization-of-bioactive-mesoporous-silica-with-doxorubicin-and-metronidazole-intended-for-bone-treatment-and-regeneration
#11
Katarzyna Czarnobaj, Magdalena Prokopowicz, Wiesław Sawicki
The purpose of this study was to evaluate the surface mineralization activity and in vitro drug behavior potential of two forms of mesoporous silica: powder and granulate. Ordered mesoporous SiO2 powder was synthesized by surfactant-assisted sol-gel process using tetraethoxysilane as a silica precursor and hexadecyltrimethylammonium bromide as the structure-directing agent. The granulate was prepared using silica powder and ethyl cellulose as a binding agent. Metronidazole (MT)-an anti-inflammatory substance and doxorubicin hydrochloride (ChD)-an anti-cancer drug were chosen as drug models for delivery studies...
May 22, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28532096/preparation-of-nanocrystalline-forsterite-by-combustion-of-different-fuels-and-their-comparative-in-vitro-bioactivity-dissolution-behaviour-and-antibacterial-studies
#12
Rajan Choudhary, Prasanth Manohar, Jana Vecstaudza, Maria Josefa Yáñez-Gascón, Horacio Pérez Sánchez, Ramesh Nachimuthu, Janis Locs, Sasikumar Swamiappan
This study presents different fuels (Glycine and Urea) that can be used to synthesize nanocrystalline forsterite by the sol-gel combustion method. The weight change of precursor during thermal treatment was studied by thermo-gravimetric analysis (TGA). Pure forsterite was characterized by heating microscopy, Fourier transform infrared spectroscopy, X-ray Diffraction, Brunauer-Emmett-Teller, Scanning Electron Microscopy, and Energy dispersive X-ray spectroscopy. The HAP (hydroxyapatite) deposition ability, degradation and dissolution behaviour of forsterite was examined in simulated body fluid (SBF)...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532088/mussel-inspired-surface-modification-of-titania-nanotubes-as-a-novel-drug-delivery-system
#13
Negin Khoshnood, Ali Zamanian, Abouzar Massoudi
Titania nanotubes (TNTs) have attracted considerable attention for the development of new devices for local drug delivery applications. In this study TNTs were synthesized by hydrothermal method from titania nanoparticles and then the surface of TNTs were functionalized by in situ polymerization of bioinspired polydopamine (PDA). The proposed strategies emphasized on remarkable properties of these materials and their unique combination to design local drug delivery system with advanced performance. The samples were characterized using Transmission Electron Microscope (TEM), Field Emission Scanning Electron Microscope (FESEM), X-ray diffraction pattern (XRD), Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA) and surface area analysis (BET)...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532085/mesoporous-nano-bioglass-designed-for-the-release-of-imatinib-and-in-vitro-inhibitory-effects-on-cancer-cells
#14
Muhammad Shoaib, Aamer Saeed, Muhammad Saif Ur Rahman, Muhammad Moazzam Naseer
For treating bone cancer, controlled drug delivery is an important strategy. Bioactive scaffolds are widely used biomaterials due to their usefulness in localized drug delivery. The aim of this study was to develop mesoporous bioglass (MBG) with improved bioactivity and controllable drug delivery rate. By using pluronic 123 (P123) as a template, a facile sol-gel route was employed for the synthesis of MBG nanoparticles (NPs). The composition of the prepared sample was estimated by using energy dispersive X-ray spectroscopy (EDX)...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28531988/optimization-of-toxic-biological-compound-adsorption-from-aqueous-solution-onto-silicon-and-silicon-carbide-nanoparticles-through-response-surface-methodology
#15
Vinod Kumar Gupta, Ali Fakhri, Sahar Rashidi, Ahmed A Ibrahim, Mohammad Asif, Shilpi Agarwal
The subject of this paper is removal of Aflatoxin B1 as toxic biological compound adsorption onto Silicon (Si) and Silicon carbide (SiC) nanoparticles in aqueous matrices using Response surface methodology. The surface frame of Si and SiC nanoparticles were comminuted by XRD, TEM, SEM, and BET. Experiments were steered well-found by Box-Behnken plan (BBD). Experiments of batch method were performed to prognosticate the reaction equilibrium of Aflatoxin B1 removal. The response surface methodological approach was used...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28531979/synthesis-and-characterization-of-glycyrrhizic-acid-coated-iron-oxide-nanoparticles-for-hyperthermia-applications
#16
Mostafa Saeedi, Omid Vahidi, Shahin Bonakdar
In the present study, iron oxide magnetic nanoparticles (IONPs) were synthesized using the oxidative precipitation method for biomedical applications. Glycyrrhizic acid (GA) extracted from the roots of licorice plant was used as the coating agent for the synthesized nanoparticles (GAIONPs). The crystal phase, morphology and size were investigated by XRD, FE-SEM and TEM. The saturation magnetization (ms) value of the nanoparticles was measured by VSM indicating lowered ms of the GAIONPs with respect to that of the IONPs due to the presence of GA...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28531657/efficient-water-disinfection-with-ag2wo4-doped-mesoporous-g-c3n4-under-visible-light
#17
Yi Li, Yanan Li, Shuanglong Ma, Pengfei Wang, Qianlei Hou, Jingjing Han, Sihui Zhan
Ag2WO4/g-C3N4 composite photocatalyst was synthesized by polymerization of thiourea and ammonia chloride combined with the deposition-precipitation method, which was applied as an efficient visible-light driven photocatalyst for inactivating Escherichia coli (E. coli). The physicochemical properties of these photocatalysts were systematically characterized by various techniques such as SEM, TEM, XRD, FT-IR, BET, UV-vis DRS and PL. The synthesized photocatalysts exhibited outstandingly enhanced photocatalytic disinfection efficiency compared with that of pure g-C3N4 and Ag2WO4 under visible light...
May 11, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28530714/cd8%C3%AE-%C3%AE-intraepithelial-lymphocytes-arise-from-two-main-thymic-precursors
#18
Roland Ruscher, Rebecca L Kummer, You Jeong Lee, Stephen C Jameson, Kristin A Hogquist
TCRαβ(+)CD4(-)CD8α(+)CD8β(-) intestinal intraepithelial lymphocytes (CD8αα IELs) are an abundant population of thymus-derived T cells that protect the gut barrier surface. We sought to better define the thymic IEL precursor (IELp) through analysis of its maturation, localization and emigration. We defined two precursor populations among TCRβ(+)CD4(-)CD8(-) thymocytes by dependence on the kinase TAK1 and rigorous lineage-exclusion criteria. Those IELp populations included a nascent PD-1(+) population and a T-bet(+) population that accumulated with age...
May 22, 2017: Nature Immunology
https://www.readbyqxmd.com/read/28530477/reliability-and-validity-of-an-acromion-marker-cluster-for-recording-scapula-posture-at-end-range-clavicle-protraction-retraction-elevation-and-depression
#19
Yaheli Bet-Or, Wolbert van den Hoorn, Venerina Johnston, Shaun P O'Leary
Acromion Marker Cluster (AMC) methods have been shown to accurately track scapula motion during humeral elevation below 90°, however, their accuracy has not been assessed in shoulder girdle motion such as clavicle protraction, retraction, elevation and depression independent of humeral movement. The aim of this study was to examine the reliability and validity of the AMC method to record scapula orientation at end range clavicle protraction, retraction, elevation and depression. The right scapulae of twenty-two female and twenty male asymptomatic volunteers were assessed with an AMC and Scapula Locator (SL) method during end range clavicle protraction, retraction, elevation and depression (without humeral elevation) using an eight-camera 3D movement registration system...
May 22, 2017: Journal of Applied Biomechanics
https://www.readbyqxmd.com/read/28528681/multilayer-adsorption-in-liquid-chromatography-the-surface-heterogeneity-below-an-adsorbed-multilayer
#20
Krisztián Horváth, Péter Vajda, Attila Felinger
A numerical method was introduced for the estimation of the surface heterogeneity below an adsorbed multilayer of the analyte. The calculation procedure is based on the raw adsorption isotherm data points obtained by frontal analysis experiments. To permit the mapping of the nature of the analyte-surface interaction, a numerical procedure was used to pre-estimate the adsorbate-adsorbate interactions occurring during the adsorption process. The surface heterogeneity estimation was carried out using the affinity-energy distribution calculations with assuming local BET isotherm...
May 10, 2017: Journal of Chromatography. A
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