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https://www.readbyqxmd.com/read/29031227/development-of-a-graphene-oxide-chitosan-nanocomposite-for-the-removal-of-picric-acid-from-aqueous-solutions-study-of-sorption-parameters
#1
Mona Mohseni Kafshgari, Hasan Tahermansouri
The functionalization of graphene oxide (GO) with chitosan (Chi) has been investigated to prepare a nanocomposite material (GO-Chi) for the removal of picric acid from aqueous solutions. Materials were characterized by FT-IR, TGA, DTG, FESEM, EDX, XRD and BET. Batch experiments such as solution pH, amount of adsorbents, contact time, concentration of the picric acid and temperature were achieved to study sorption process. Kinetic studies were well described by pseudo-second-order kinetic model for both adsorbents...
October 7, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29031220/effects-of-glyphosate-based-herbicide-on-pintado-da-amaz%C3%A3-nia-hematology-histological-aspects-metabolic-parameters-and-genotoxic-potential
#2
Fernando Rafael de Moura, Ritane Rose da Silva Lima, Ana Paula Simões da Cunha, Patrícia da Costa Marisco, Danilo Henrique Aguiar, Marina Mariko Sugui, Adilson Paulo Sinhorin, Valéria Dornelles Gindri Sinhorin
Roundup Original(®) is an herbicide widely used in Mato Grosso's agriculture and it may contamine water bodies, being an unforeseen xenobiotic to aquatic organisms, particularly fish. This study investigated the effects on the hybrid fish jundiara (Leiarius marmoratus×Pseudoplatystoma reticulatum) of an environmentally relevant exposure to this herbicide. Glucose levels in liver, muscle and plasma decreased after exposure to 1.357mgL(-1) of Roundup Original(®) (glyphosate nominal concentration), while glycogen levels reduced in liver and muscle for different times...
September 29, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/29031217/quality-of-life-and-burden-in-caregivers-of-youth-with-obsessive-compulsive-disorder-presenting-for-intensive-treatment
#3
Monica S Wu, Rebecca Hamblin, Joshua Nadeau, Jessica Simmons, Ashley Smith, Meredith Wilson, Stephanie Eken, Brent Small, Vicky Phares, Eric A Storch
BACKGROUND: Pediatric obsessive-compulsive disorder (OCD) is associated with deleterious familial effects; caregivers are often enmeshed in the disorder and can experience considerable burden and decreased quality of life (QoL). Consequently, this study examined burden and QoL in caregivers of youth with OCD enrolled in an intensive outpatient or partial hospitalization program. METHOD: The relationships between caregiver QoL and burden and the following variables were investigated: OCD symptom severity, functioning (youth functional impairment, general family functioning), family (family accommodation, parental relationship satisfaction, positive aspects of caregiving), and comorbid psychopathology (caregiver anxiety and depressive symptoms, youth internalizing and externalizing behaviors)...
August 30, 2017: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/29031207/microrna-25-inhibits-high-glucose-induced-apoptosis-in-renal-tubular-epithelial-cells-via-pten-akt-pathway
#4
Huicong Li, Xiaoguang Zhu, Junwei Zhang, Jun Shi
Diabetic nephropathy (DN) has become the major cause of end-stage renal disease (ESRD). It has been demonstrated that apoptosis of renal tubular epithelial cells induced by hyperglycemia contributes to the pathogenesis of DN. Recent researches have corroborated the critical roles of microRNAs (miRNAs) in the apoptosis of various types of cells including renal tubular epithelial cells. However, the eff ; ;ect of miRNAs on the hyperglycemia-induced apoptosis of renal tubular epithelial cells remains unclear...
October 11, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29031205/protective-effect-of-%C3%AE-lipoic-acid-against-spleen-toxicity-of-dimethylnitrosamine-in-male-mice-antioxidant-and-ultrastructure-approaches
#5
Nahla S El-Shenawy, Reham Z Hamza, Howayda E Khaled
The α-lipoic acid is a soft material and useful for the potential biomedical applications. The study was aimed to assess the potency of α-lipoic acid (ALA) against the toxicity of dimethylnitrosamine (DMN) on spleen of mice by assessing the antioxidants, histopathological and ultrastructure changes. The experiment was achieved on six groups of male mice as following; groups 1, 2, 3, and 4 were served as a control, ALA groups, low dose of DMN (DMN-LD; 2mgkg(-1)) and high dose of DMN (DMN-HD; 4mgkg(-1)). Group 5 was received DMN-LD plus ALA and group 6 was given DMN-HD plus ALA...
October 11, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29031188/azithromycin-sorption-and-biodegradation-in-a-simulated-california-river-system
#6
Monica L Vermillion Maier, Ronald S Tjeerdema
Azithromycin (AZ) is a widely-used macrolide antibiotic that is continually deposited into natural waterways by sewage effluent. Though recognized as an emerging contaminant of concern, little is known about its fate and transport in aquatic systems. American River soils and water were used to determine degradation of AZ in microcosms simulating flooded (anaerobic) and non-flooded (aerobic) California watershed conditions. Under aerobic conditions the degradation rate constant (k=0.0084 ± 0.0039 day(-1)) and DT50 (82...
October 4, 2017: Chemosphere
https://www.readbyqxmd.com/read/29031153/facile-displacement-of-citrate-residues-from-gold-nanoparticle-surfaces
#7
Ganganath S Perera, Sumudu A Athukorale, Felio Perez, Charles U Pittman, Dongmao Zhang
The stability of citrate-residues on gold nanoparticles (AuNPs) against ligand displacement has been controversial. Using AuNPs synthesized with deuterated citrate in combination with in-situ surface-enhanced Raman spectroscopic (SERS) analysis, we report that both citrate-residues and solution impurities can be simultaneously adsorbed onto citrate-reduced AuNPs in solution. The citrate-residues can be readily displaced from AuNPs by organosulfur such as organothiols (RS-H), organodisuflide (R-S-S-R), and non-specific ligands including halides and adenine...
October 5, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29031135/shared-agenda-making-for-quality-improvement-towards-more-synergy-in-maternity-care
#8
Carola J M Groenen, Noortje T L van Duijnhoven, Jan A M Kremer, Marisja Scheerhagen, Frank P H A Vandenbussche, Marjan J Faber
OBJECTIVES: Professionals in maternity care have started working in a network approach. To further enhance the efficacy of this multidisciplinary maternity network, the identification of priorities for improvement is warranted. The aim of this study was to create key recommendations for the improvement agenda, in co-production with patients and professionals. STUDY DESIGN: We conducted a Delphi study to inventory (round 1), prioritize (round 2) and eventually approve (round 3) the improvement agenda for the maternity network...
October 7, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/29031132/effectiveness-of-policy-changes-to-reduce-harm-from-unrecorded-alcohol-in-russia-between-2005-and-now
#9
Maria Neufeld, Jürgen Rehm
BACKGROUND: Consumption of unrecorded alcohol (alcohol that is not taxed and reflected in official statistics, but consumed as a beverage) has been identified as one of the main contributors to alcohol-attributable premature mortality in Russia. The problem was highlighted by a recent a mass poisoning with surrogate alcohol occurred in the Siberian city of Irkutsk. METHODS: Based on key publications and legislative documents, a narrative review was undertaken about alcohol-related harm reduction policies in Russia for the period between 2005 and 2017, as well as the impact of these policies on the recorded and unrecorded alcohol consumption and alcohol market...
October 11, 2017: International Journal on Drug Policy
https://www.readbyqxmd.com/read/29031127/patients-perceptions-and-experiences-of-living-with-a-surgical-wound-healing-by-secondary-intention-a-qualitative-study
#10
Dorothy McCaughan, Laura Sheard, Nicky Cullum, Jo Dumville, Ian Chetter
BACKGROUND: Most surgical wounds heal by primary intention, that is to say, the edges of the wound are brought together with sutures, staples, adhesive glue or clips. However, some wounds may be left open to heal (if there is a risk of infection, or if there has been significant tissue loss), and are known as 'surgical wounds healing by secondary intention'. They are estimated to comprise approximately 28% of all surgical wounds and are frequently complex to manage. However, they are under researched and little is known of their impact on patients' lives...
September 28, 2017: International Journal of Nursing Studies
https://www.readbyqxmd.com/read/29031120/enabling-spontaneous-analogy-through-heuristic-change
#11
Thomas C Ormerod, James N MacGregor
Despite analogy playing a central role in theories of problem solving, learning and education, demonstrations of spontaneous analogical transfer are rare. Here, we present a theory of heuristic change for spontaneous analogical transfer, tested in four experiments that manipulated the experience of failure to solve a source problem prior to attempting a target problem. In Experiment 1, participants solved more source problems that contained an additional financial constraint designed to signal the inappropriateness of moves that maximized progress towards the goal...
October 11, 2017: Cognitive Psychology
https://www.readbyqxmd.com/read/29031117/reactions-of-melolontha-hippocastani-adults-to-high-manganese-content-in-food
#12
Petr Martinek, Emanuel Kula, Josef Hedbávný
Rapid adaptation of insect species to environmental changes can be advantageous for their development. Forest cockchafer (Melolontha hippocastani) is herbivorous insect species with high food intake that has been widely studied within European conditions. It can cause huge economic and ecological losses especially in oak-dominated forest stands. Food preference of this species is mainly comprised of trees with a potential to accumulate manganese in their assimilation apparatus. In order to determine cockchafer's reactions to increased Mn concentration in its food, the adults were reared in laboratory conditions controlled for temperature, humidity, and light on a natural diet of oak (Quercus petraea) leaves...
October 11, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29031114/neo-clerodane-diterpenoids-from-the-whole-plants-of-scutellaria-formosana
#13
Xin Chen, Wenhao Chen, Guangying Chen, Changri Han, Johnny J He, Xueming Zhou, Zhangxin Yu, Chunyan Dai, Xiaoping Song
Scuteformoids A-J, ten previously undescribed neo-clerodane diterpenoids along with one known analogue, were isolated from petroleum ether soluable fraction of the whole plants of Scutellaria formosana. The differences among these compounds are the substituents and stereochemistry at C-13. Their structures were elucidated by 1D and 2D NMR experiments, and the absolute configurations of Scuteformoids A, C, E, F, and I were further confirmed by single-crystal X-ray diffraction. Scuteformoids A, C, D, F, H, and I were evaluated for their inhibitory effects against HIV lytic replication and cytotoxic activities...
October 11, 2017: Phytochemistry
https://www.readbyqxmd.com/read/29031097/the-tall-and-the-short-of-it-an-investigation-of-height-ideals-height-preferences-height-dissatisfaction-heightism-and-height-related-quality-of-life-impairment-among-sexual-minority-men
#14
Scott Griffiths, Stuart B Murray, Aimee Medeiros, Aaron J Blashill
Human height has attracted empirical interest from a variety of psychological perspectives. However, little research has explored height from the perspective of sexual minority men, inclusive of their height beliefs, height preferences, height dissatisfaction, experiences of heightism, and height-related quality of life impairment. We explored these height variables in 2733 sexual minority men who completed a survey distributed nationwide to Australian and New Zealander users of geosocial-networking smartphone applications...
October 11, 2017: Body Image
https://www.readbyqxmd.com/read/29031095/sustainable-superior-function-of-the-synthesized-nixco1-xfe2oz-nanosphere-on-the-destruction-of-chlorinated-biphenyls-in-the-effluent
#15
Linyan Huang, Qianqian Li, Guijin Su, Minghui Zheng, Yalu Liu, Yangyang Gu, Lirong Gao, Guorui Liu, Wenbin Liu
NixCo1-xFe2Oz composite oxide nanosphere was successfully prepared, to degrade 2-monochlorobiphenly (CB-1) in continuous-flow fixed-bed microreactor at GHSV of 20000h(-1). The five cycles of temperature-dependent run experiments between 150 and 350°C showed its superior activity with a CB-1 conversion of more than 95% above 300°C over Ni0.5Co0.5Fe2Oz. Importantly, the sustainable higher reactivity could be observed over prolonged 600min reaction times after the 5th run test. The degradation products detected as biphenyl and monochlorobenzene with yield ratio of 129, account for 0...
October 6, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/29031086/natural-iron-isotopes-influence-on-the-neutron-transport
#16
Martin Schulc, Bohumil Jánský, Davit Harutyunyan, Evžen Novák
As an iron is the main structural component of nuclear power plants as well as future fusion power plants, the validation of neutron incident data libraries of iron is a must. Presented paper fits into ongoing validation activities and presents measuring neutron leakage spectra in the 0.1-1.0MeV region from iron sphere of 100cm in diameter by hydrogen proportional detectors. The experimental result is compared with ENDF/B-VII.1, JEFF-3.2 and CIELO nuclear data libraries. No library reasonably well describes whole region under study...
October 5, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/29031082/quantum-associative-memory-with-linear-and-non-linear-algorithms-for-the-diagnosis-of-some-tropical-diseases
#17
J-P Tchapet Njafa, S G Nana Engo
This paper presents the QAMDiagnos, a model of Quantum Associative Memory (QAM) that can be a helpful tool for medical staff without experience or laboratory facilities, for the diagnosis of four tropical diseases (malaria, typhoid fever, yellow fever and dengue) which have several similar signs and symptoms. The memory can distinguish a single infection from a polyinfection. Our model is a combination of the improved versions of the original linear quantum retrieving algorithm proposed by Ventura and the non-linear quantum search algorithm of Abrams and Lloyd...
September 21, 2017: Neural Networks: the Official Journal of the International Neural Network Society
https://www.readbyqxmd.com/read/29031064/fragment-based-approach-to-identify-ido1-inhibitor-building-blocks
#18
Alice Coletti, Francesca Camponeschi, Elisa Albini, Francesco Antonio Greco, Vincenzo Maione, Chiara Custodi, Federica Ianni, Ursula Grohmann, Ciriana Orabona, Francesca Cantini, Antonio Macchiarulo
Indoleamine 2,3-dioxygenase 1 (IDO1) is attracting a great deal of interest as drug target in immune-oncology being highly expressed in cancer cells and participating to the tumor immune-editing process. Although several classes of IDO1 inhibitors have been reported in literature and patent applications, only few compounds have proved optimal pharmacological profile in preclinical studies to be advanced in clinical trials. Accordingly, the quest for novel structural classes of IDO1 inhibitors is still open...
October 3, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29031063/anticancer-properties-of-4-thiazolidinone-derivatives-depend-on-peroxisome-proliferator-activated-receptor-gamma-ppar%C3%AE
#19
Konrad A Szychowski, Marcin L Leja, Danylo V Kaminskyy, Anna P Kryshchyshyn, Urszula E Binduga, Oleh R Pinyazhko, Roman B Lesyk, Jakub Tobiasz, Jan Gmiński
Peroxisome proliferator-activated receptors (PPARs) play an important role in numerous chronic diseases such as diabetes, obesity, atherosclerosis and cancer, and PPAR modulators are among the approved drugs and drug-candidates for their treatment. The aim of this study was to elucidate the involvement of PPARs in the mechanism of cytotoxic and pro-apoptotic action of novel anticancer 4-thiazolidinone derivatives (Les-2194, Les-3377, Les-3640) and approved 4-thiazolidinones (Rosiglitazone, Pioglitazone) towards the human squamous carcinoma (SCC-15) cell line...
September 30, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29031055/iron-chloride-catalysed-pcdd-f-formation-experiments-and-pcdd-f-signatures
#20
Mengmei Zhang, Alfons Buekens, Siyuan Ma, Xiaodong Li
Iron chloride is often cited as catalyst of PCDD/F-formation, together with copper chloride. Conversely, iron chloride catalysis has been less studied during de novo tests. This paper presents such de novo test data, derived from model fly ash incorporating iron (III) chloride and established over a vast range of temperature and oxygen concentration in the gas phase. Both PCDD/F-output and its signature are extensively characterised, including homologue and congener profiles. For the first time, a complete isomer-specific analysis is systematically established, for all samples...
September 27, 2017: Chemosphere
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