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https://www.readbyqxmd.com/read/28107756/photocatalytic-reduction-of-cs-i-ions-removed-by-combined-maghemite-titania-pva-alginate-beads-from-aqueous-solution
#1
Zohreh Majidnia, Mohamad Ali Fulazzaky
The presence of Cs(I) ions in nuclear wastewater becomes an important issue for the reason of its high toxicity. The development of adsorbent embedded metal-based catalysts that has sufficient adsorption capacity is expected for the removal of Cs(I) ions from contaminated water. This study tested the use of maghemite, titania and combined maghemite-titania polyvinyl alcohol (PVA)-alginate beads as an adsorbent to remove Cs(I) ions from aqueous solution with the variables of pH and initial concentration using batch experiments under sunlight...
January 17, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28107755/optimal-glycemic-target-level-for-colon-cancer-patients-with-diabetes
#2
Shin Jun Lee, Jae Hyun Kim, Seun Ja Park, So Young Ock, Su Kyoung Kwon, Young Sik Choi, Bu Kyung Kim
AIMS: The aim of this study was to evaluate the differences in mortality among colon cancer patients with or without diabetes and to determine optimal glycemic target level for colon cancer patients with diabetes. METHODS: A total of 741 patients with colon cancer between April 1999 and December 2010 were reviewed. The non-diabetes group had a fasting plasma glucose <126mg/dL, and the diabetes group had a fasting plasma glucose ⩾126mg/dL. Patients with diabetes were further divided based on glycemic control into either the uncontrolled subgroup (HbA1c ⩾8%) or the well-controlled subgroup (HbA1c <8%)...
December 23, 2016: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28107748/tracing-the-sources-and-cycling-of-phosphorus-in-river-sediments-using-oxygen-isotopes-methodological-adaptations-and-first-results-from-a-case-study-in-france
#3
Chiara Pistocchi, Federica Tamburini, Gerard Gruau, André Ferhi, Dominique Trevisan, Jean-Marcel Dorioz
An essential aspect of eutrophication studies is to trace the ultimate origin of phosphate ions (P-PO4) associated with the solid phase of river sediments, as certain processes can make these ions available for algae. However, this is not a straightforward task because of the diversity of allochthonous and autochthonous sources that can supply P-PO4 to river sediments as well as the existence of in-stream processes that can change the speciation of these inputs and obscure the original sources. Here, we present the results of a study designed to explore the potentials, limitations and conditions for the use of the oxygen isotope composition of phosphate (δ(18)Op) extracted from river sediments for this type of tracing...
December 26, 2016: Water Research
https://www.readbyqxmd.com/read/28107733/glycine-increases-cold-tolerance-in-rice-via-the-regulation-of-n-uptake-physiological-characteristics-and-photosynthesis
#4
Cao Xiaochuang, Zhong Chu, Zhu Lianfeng, Zhang Junhua, Sajid Hussain, Wu Lianghuan, Jin Qianyu
To investigate the response of rice growth and photosynthesis to different nitrogen (N) sources under cold stress, hydroponic cultivation of rice was done in greenhouse, with glycine, ammonium, and nitrate as the sole N sources. The results demonstrate that exposure to low temperature reduced the rice biomass and leaf chlorophyll content, but their values in the glycine-treated plants were significantly higher than in the ammonium- and nitrate-treated plants. This might be attributed to the higher N uptake rate and root area and activity in the glycine-treated plants...
January 12, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28107731/natural-amelioration-of-zinc-oxide-nanoparticle-toxicity-in-fenugreek%C3%A2-trigonella-foenum-gracum-by-arbuscular-mycorrhizal-glomus-intraradices-secretion-of-glomalin
#5
Narges Ghasemi Siani, Seyfollah Fallah, Lok Raj Pokhrel, Ali Rostamnejadi
Owing to rising production and use of engineered nanoparticles (ENPs) in the myriad of consumer applications, ENPs are being released into the environment where their potential fate and effects have remained unclear. With naturally occurring arbuscular mycorrhizal fungus (AMF; Glomus intraradices) in soils, their influence (positive or negative) on ENPs toxicity in plants is not well documented. Herein, we investigated potential influence of AMF on the growth and development in fenugreek (Trigonella foenum-graecum) under varied Zinc oxide nanoparticles (ZnONPs) treatments (0, 125, 250, 375 and 500 μg g(-1))...
January 3, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28107728/a-three-dimensional-core-shell-nanostructured-composite-of-polypyrrole-wrapped-mno2-reduced-graphene-oxide-carbon-nanotube-for-high-performance-lithium-ion-batteries
#6
Yong Li, Daixin Ye, Wen Liu, Bin Shi, Rui Guo, Haijuan Pei, Jingying Xie
Manganese oxides are promising anode materials for their high-energy density. However, they suffer from poor rate capability and fast capacity fading. Herein, we construct a three-dimensional (3D) core-shell structured polypyrrole (PPy)/MnO2-reduced graphene oxide (rGO)-carbon nanotubes (CNTs) composite via a facile two-step method. In the structure, the CNTs can facilitate fast electron conduction and keep structural integrity. The flexible and conductive rGO nanosheets work as both a reactive material and a carrier for MnO2 in-situ growth...
January 10, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28107705/incorporation-of-antimicrobial-peptides-in-nanostructured-lipid-membrane-mimetic-bilayer-cubosomes
#7
Thomas G Meikle, Alexandru Zabara, Lynne J Waddington, Frances Separovic, Calum J Drummond, Charlotte E Conn
The inverse bicontinuous lipidic cubic phase offers a simple and robust membrane mimetic with the ability to encapsulate peptides, potentially increasing bioavailability, while also offering a platform from which functionalized, targeted nanoparticles can be developed. Herein we have investigated the use of a number of cubic phase nanoparticle systems with encapsulated antimicrobial peptides gramicidin A', melittin, and alamethicin. The optimal peptide loading ranges, over which cubic symmetry was retained, were determined using small angle X-ray scattering...
January 8, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28107698/the-natural-flavonoid-apigenin-sensitizes-human-cd44-prostate-cancer-stem-cells-to-cisplatin-therapy
#8
Suat Erdogan, Kader Turkekul, Rıza Serttas, Zeynep Erdogan
Prostate cancer (PCa) is the second most common type of cancer and the fifth leading cause of cancer-related death among men. Development of chemoresistance, tumor relapse and metastasis remain major barriers to effective treatment and all been identified to be associated with cancer stem cells (CSCs). Natural flavonoids such as apigenin have been shown to have the ability to improve the therapeutic efficacy of common chemotherapy agents through CSCs sensitization. Thus, the aim of this study was to evaluate the combination of apigenin with cisplatin on CD44(+) PCa stem cell growth and migration...
January 17, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28107693/attrition-among-iranian-nursing-students-a-qualitative-study
#9
Mansoureh Ashghali Farahani, Fatemeh Ghaffari, Fatemeh Oskouie, Mansoureh Zagheri Tafreshi
Attrition is a major challenge facing nursing students that results in substantial costs on the education, health, and treatment systems across countries and can have an unwanted effect on the quality and quantity of health services provided as well as on the health of citizens. This descriptive study investigated nursing students' perceptions toward factors influencing attrition. We conducted a qualitative study using a content analysis approach. Nineteen students enrolled in nursing bachelor program were recruited using purposive and snowball sampling...
January 6, 2017: Nurse Education in Practice
https://www.readbyqxmd.com/read/28107687/do-recreational-cannabis-users-unlicensed-and-licensed-medical-cannabis-users-form-distinct-groups
#10
Sharon R Sznitman
BACKGROUND: This study aims to gain a more nuanced perspective on the differences between recreationally and medically motivated cannabis use by distinguishing between people who use cannabis for recreational purposes, unlicensed and licensed medical users. METHODS: Data collection was conducted online from a convenience sample of 1479 Israeli cannabis users. Multinomial regression analysis compared unlicensed medical users (38%) with recreational (42%) and licensed medical (5...
January 17, 2017: International Journal on Drug Policy
https://www.readbyqxmd.com/read/28107676/characterization-of-a-new-ultrasound-device-designed-for-measuring-cortical-porosity-at-the-human-tibia-a-phantom-study
#11
M Gräsel, C-C Glüer, R Barkmann
Quantitative ultrasound (QUS) measurements of trabecular bone are a useful tool for the assessment of osteoporotic fracture risk. However, cortical bone properties (e.g. porosity) have an impact on bone strength as well and thus current research is focused on QUS assessment of cortical bone properties. Simulation studies of ultrasound propagation through cortical bone indicate that anisotropy, calculated from the ratio of the velocities in axial and tangential directions, is correlated with porosity. However, this relationship is affected by error sources, specifically bone surface curvature and variability of probe positioning...
January 4, 2017: Ultrasonics
https://www.readbyqxmd.com/read/28107658/validation-of-a-personalized-curved-muscle-model-of-the-lumbar-spine-during-complex-dynamic-exertions
#12
Jaejin Hwang, Gregory G Knapik, Jonathan S Dufour, Thomas M Best, Safdar N Khan, Ehud Mendel, William S Marras
Previous curved muscle models have typically examined their robustness only under simple, single-plane static exertions. In addition, the empirical validation of curved muscle models through an entire lumbar spine has not been fully realized. The objective of this study was to empirically validate a personalized biologically-assisted curved muscle model during complex dynamic exertions. Twelve subjects performed a variety of complex lifting tasks as a function of load weight, load origin, and load height. Both a personalized curved muscle model as well as a straight-line muscle model were used to evaluate the model's fidelity and prediction of three-dimensional spine tissue loads under different lifting conditions...
January 9, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/28107655/discrimination-between-naphthacene-and-triphenylene-using-cellulose-tris-4-methylbenzoate-and-cellulose-tribenzoate-a-computational-study
#13
Yusuke Murakami, Tohru Shibata, Kazuyoshi Ueda
The mechanisms of naphthacene and triphenylene discrimination using commercially available cellulose tris(4-methylbenzoate) (CMB) and cellulose tribenzoate (CB) chiral stationary phases were investigated using molecular mechanics calculations. Naphthacene and triphenylene could be separated by liquid chromatography on CMB and CB, with triphenylene being eluted earlier than naphthacene on both phases. However, the corresponding separation factor is much larger for CMB than for CB. The docking of these polycyclic aromatic hydrocarbons to the above polymers suggested that the most important sites of CMB and CB for interacting with these hydrocarbons are located at equivalent positions, featuring a space surrounded by main chain glucose units and benzoyl side chains...
January 7, 2017: Carbohydrate Research
https://www.readbyqxmd.com/read/28107654/examining-the-link-between-nonmedical-use-of-sedatives-tranquilizers-and-pain-relievers-with-dispositions-toward-impulsivity-among-college-students
#14
Brittany E Blanchard, Angela K Stevens, Andrew K Littlefield, Amelia E Talley, Jennifer L Brown
BACKGROUND: The association between impulsive dispositions and the use of the central nervous system (CNS) depressant alcohol has been examined extensively; however, the links between other depressant use (sedatives, tranquilizers, and pain relievers) and impulsivity have been less studied, and findings have been equivocal. This may be due, in part, to varying operationalizations of "impulsivity," as well as issues related to the lumping versus splitting of various depressant substances when assessing use...
January 6, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28107643/does-psychological-well-being-change-following-treatment-an-exploratory-study-on-outpatients-with-eating-disorders
#15
Elena Tomba, Lucia Tecuta, Romana Schumann, Donatella Ballardini
Psychological well-being changes following cognitive-behavioral therapy-based treatment were investigated in outpatients with eating disorders (ED). While it is known that CBT reduces symptomatology in EDs, less is known about how changes in positive functioning may ensue. One-hundred and eighty five ED outpatients were analyzed for pre-treatment and post-treatment changes in psychological well-being (PWB) by last observation carried forward - Wilcoxon signed rank tests. Significant gains in all PWB dimensions were found, with moderate effect size correlations in environmental mastery (r=-...
January 7, 2017: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/28107634/electrolyte-gradient-based-modulation-of-molecular-transport-through-nanoporous-gold-membranes
#16
Daniel A McCurry, Ryan C Bailey
Nanopores, and nanoporous materials in general, are interesting for applications in chemical and biomolecular transport as pore sizes are on the same scale as the dimension of many (bio)chemical species. Many studies have focused on either single pores or small arrays of cylindrical pores, which are convenient in terms of their amenability towards computational modeling of transport phenomenon. However, the limited overall porosity may inhibit transport flux as well as the eventual implementation of these materials as active separation elements...
January 20, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28107600/the-predictive-and-prognostic-role-of-serum-neopterin-and-tryptophan-breakdown-in-prostate-cancer
#17
Renate Pichler, Josef Fritz, Isabel Heidegger, Eberhard Steiner, Zoran Culig, Helmut Klocker, Dietmar Fuchs
The Interferon-gamma induced enzymes indoleamine 2,3-dioxygenase and GTP-cylohydrolase are key players in tumor immune escape mechanisms. We quantified serum levels of neopterin and tryptophan breakdown (tryptophan, kynurenine and kynurenine-to-tryptophan ratio) in addition to prostate-specific antigen (PSA) in newly diagnosed prostate cancer (PCa) patients (n=100) before radical prostatectomy (RP) as well as at time of biochemical recurrence (BCR) after RP (n=50) in comparison to healthy men (n=49). Effects of biomarkers on the risk of PCa diagnosis on transrectal biopsy, worse histopathological characteristics of the RP specimens and cancer-specific survival (CSS) after BCR were investigated...
January 20, 2017: Cancer Science
https://www.readbyqxmd.com/read/28107599/the-prevalence-and-impact-of-chronic-neuropathic-pain-on-daily-and-social-life-a-nationwide-study-in-a-japanese-population
#18
S Inoue, T Taguchi, T Yamashita, M Nakamura, T Ushida
BACKGROUND: This study marks the first epidemiological evaluation of the prevalence and burden of chronic neuropathic pain (NeP) in an Asian population. The objective of this nationwide cross-sectional study was to identify the characteristics of individuals with NeP, detect the NeP features that affect their quality of life (QOL), and demonstrate the negative effects of NeP on social and daily living as well as comorbidities including depression, anxiety and sleep disorders. METHODS: We mailed a cross-sectional, population-based epidemiological survey to a random nationwide sample of 10,000 Japanese adults over 20 years old...
January 20, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/28107575/spanish-version-of-actinic-keratosis-quality-of-life-questionnaire-akqol
#19
I Alarcon, G R Vinding, K B Christensen, S Esmann, J Malvehy, S Puig, G B E Jemec
BACKGROUND: Patient Reported Outcome Measures are very important outcomes. For specific diseases Health Related Quality of Life-instruments (HRQoL) are increasingly used to provide data on patients' overall perceptions of the course of a given disease. Actinic keratoses (AKs) are common keratotic lesions that occur on chronically sunlight-exposed skin. Only few studies regarding HRQoL in AKs have been made. OBJECTIVE: In order to be able to compare HRQoL among different countries and cultures we aimed to translate and validate the Actinic Keratosis Quality of Life (AKQoL) questionnaire into Spanish and quantify the impairment caused by AKs in Spanish patients...
January 20, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28107569/use-of-higher-maximum-doses-and-infusion-rates-compared-with-those-used-in-standard-unfractionated-heparin-therapy-is-associated-with-adequate-anticoagulation-without-increased-bleeding-in-both-obese-and-nonobese-patients-with-cardiovascular-indications
#20
Catherine K Floroff, Nicole M Palm, Daniel H Steinberg, Eric R Powers, Barbara S Wiggins
STUDY OBJECTIVE: To evaluate the time to achieve therapeutic activated partial thromboplastin time (aPTT) values and occurrence of bleeding based on standard unfractionated heparin (UFH) weight-based dosing recommendations compared with an aggressive weight-based UFH dosing strategy using higher maximum doses and infusion rates in both obese and nonobese patients who presented with non-ST-Segment Elevation Myocardial Infarction or unstable angina (NSTEMI/UA) or atrial fibrillation. DESIGN: Retrospective cohort study...
January 20, 2017: Pharmacotherapy
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