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https://www.readbyqxmd.com/read/28550746/zn-doped-cdo-nanoparticles-structural-morphological-optical-photocatalytic-and-anti-bacterial-properties
#1
Vinod Kumar Gupta, Ali Fakhri, Shiva Tahami, Shilpi Agarwal
Pure and zinc-doped CdO NPs (Zn-CdO NPs) were synthesized through a facile co-precipitation method. The structural, morphology, chemical composition, optical and antibacterial activity of the NPs were studied with respect to pure and Zn-doped CdO concentration (0-7.5mol.%). Scanning electron microscope (SEM) images reveal that pure and Zn-doped CdO NPs were in the nano-scale regime with different crystalline morphology. The energy dispersive X-ray spectroscopy (EDS) spectrum predicts the presence of Cadmium (Cd), Zinc (Zn) and Oxygen (O) in the prepared samples...
May 21, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28550503/secure-data-aggregation-in-wireless-sensor-network-fujisaki-okamoto-fo-authentication-scheme-against-sybil-attack
#2
K Nirmal Raja, M Maraline Beno
In the wireless sensor network(WSN) security is a major issue. There are several network security schemes proposed in research. In the network, malicious nodes obstruct the performance of the network. The network can be vulnerable by Sybil attack. When a node illicitly assertions multiple identities or claims fake IDs, the WSN grieves from an attack named Sybil attack. This attack threatens wireless sensor network in data aggregation, synchronizing system, routing, fair resource allocation and misbehavior detection...
July 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28549212/synthesis-of-four-monoterpene-derived-organosulfates-and-their-quantification-in-atmospheric-aerosol-samples
#3
Yuchen Wang, Jingyun Ren, X H Hilda Huang, Rongbiao Tong, Jian Zhen Yu
Monoterpenes, a major class of biogenic volatile organic compounds, are known to produce oxidation products that further react with sulfate to form organosulfates. The accurate quantification of monoterpene-derived organosulfates (OSs) is necessary for quantifying this controllable aerosol source; however, it has been hampered by a lack of authentic standards. Here we report a unified synthesis strategy starting from the respective monoterpene through Upjohn dihydroxylation or Sharpless asymmetric dihydroxylation followed by mono-sulfation with sulfur trioxide-pyridine complex...
May 26, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28548011/sex-work-and-three-dimensions-of-self-esteem-self-worth-authenticity-and-self-efficacy
#4
Cecilia Benoit, Michaela Smith, Mikael Jansson, Samantha Magnus, Jackson Flagg, Renay Maurice
Sex work is assumed to have a negative effect on self-esteem, nearly exclusively expressed as low self-worth, due to its social unacceptability and despite the diversity of persons, positions and roles within the sex industry. In this study, we asked a heterogeneous sample of 218 Canadian sex workers delivering services in various venues about how their work affected their sense of self. Using thematic analysis based on a three-dimensional conception of self-esteem - self-worth (viewing oneself in a favourable light), authenticity (being one's true self) and self-efficacy (competency) - we shed light on the relationship between involvement in sex work and self-esteem...
May 26, 2017: Culture, Health & Sexuality
https://www.readbyqxmd.com/read/28545955/the-up-regulation-of-phosphofructokinase1-pfk1-protein-during-chemically-induced-hypoxia-is-mediated-by-the-hypoxia-responsive-internal-ribosome-entry-site-ires-element-present-in-its-5-untranslated-region
#5
Rehana Ismail, Mahboob Ul Hussain
PURPOSE: Astrocytes cope-up the hypoxia conditions by up regulating the activity of the enzymes catalyzing the irreversible steps of the glycolytic pathway. The phosphofructokinase1 (PFK1), which converts fructose-6-phosphate to fructose-1, 6-bisphosphate, is the major regulatory enzyme of the glycolytic pathway. For this purpose, we investigated the expression regulation of the PFK1 during chemically induced hypoxia. PRINCIPAL RESULT: After 48 hours of the chemically induced hypoxia induction of the C6 glioma cells, the PFK1 protein depicted strong up regulation, with no appreciable change in its mRNA levels...
May 22, 2017: Biochimie
https://www.readbyqxmd.com/read/28544553/dna-barcoding-meets-nanotechnology-development-of-a-smart-universal-tool-for-food-authentication
#6
Paola Valentini, Andrea Galimberti, Valerio Mezzasalma, Fabrizio De Mattia, Maurizio Casiraghi, Massimo Labra, Pier Paolo Pompa
Food trade globalization and the growing demand for selected food varieties have led to the intensification of adulteration cases, especially in the form of species substitution/mixing with cheaper taxa. This phenomenon acquired huge economic impact and sometimes even public health implications. DNA barcoding represents a well-proven molecular tool to assess the authenticity of food items, although its diffusion is hampered by analytical constraints and timeframes that are often prohibitive for food market...
May 23, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28543942/the-influence-of-authentic-leadership-on-safety-climate-in-nursing
#7
Hasan Fehmi Dirik, Seyda Seren Intepeler
AIM: This study analysed nurses' perceptions of authentic leadership and safety climate and examined the contribution of authentic leadership to the safety climate. BACKGROUND: It has been suggested and emphasised that authentic leadership should be used as a guidance to ensure quality care and the safety of patients and health-care personnel. METHODS: This predictive study was conducted with 350 nurses in three Turkish hospitals. The data were collected using the Authentic Leadership Questionnaire and the Safety Climate Survey and analysed using hierarchical regression analysis...
May 25, 2017: Journal of Nursing Management
https://www.readbyqxmd.com/read/28542606/what-is-in-your-cup-of-tea-dna-verity-test-to-characterize-black-and-green-commercial-teas
#8
Olga De Castro, Maria Comparone, Antonietta Di Maio, Emanuele Del Guacchio, Bruno Menale, Jacopo Troisi, Francesco Aliberti, Marco Trifuoggi, Marco Guida
In this study, we used several molecular techniques to develop a fast and reliable protocol (DNA Verity Test, DVT) for the characterization and confirmation of the species or taxa present in herbal infusions. As a model plant for this protocol, Camellia sinensis, a traditional tea plant, was selected due to the following reasons: its historical popularity as a (healthy) beverage, its high selling value, the importation of barely recognizable raw product (i.e., crushed), and the scarcity of studies concerning adulterants or contamination...
2017: PloS One
https://www.readbyqxmd.com/read/28540732/mouse-model-of-colonization-of-the-digestive-tract-with-acinetobacter-baumannii-and-subsequent-pneumonia
#9
Noémie Coron, Silvie Pavlickova, Angélique Godefroy, Hélène Pailhoriès, Marie Kempf, Viviane Cassisa, Laurent Marsollier, Estelle Marion, Marie-Laure Joly-Guillou, Matthieu Eveillard
AIM: Implementing a mouse model of Acinetobacter baumannii (AB) digestive colonization and studying the propensity of an intestinal reservoir of AB to be at the origin of pneumonia. MATERIALS & METHODS: After a disruption of the digestive flora by piperacillin-tazobactam, two multidrug-resistant AB strains were intranasally inoculated to two cohorts of ten mice daily. For each strain, five mice were rendered transiently neutropenic. RESULTS & CONCLUSION: One strain persisted several weeks in the digestive tract, even after stopping piperacillin-tazobactam injections, leading to the hypothesis that some AB strains can authentically colonize the gut...
May 25, 2017: Future Microbiology
https://www.readbyqxmd.com/read/28539747/botanical-and-chemical-fingerprinting-of-medicinal-roots-of-justicia-gendarussa-burm-f
#10
Deepa Yadav, Mohd Salim Reshi, Chhavi Uthra, Sadhana Shrivastava, Nalini Srivastava, Sunil Kumar Koppala Narayana, Sangeeta Shukla
BACKGROUND: Justicia gendarussa Burm f. of family Acanthaceae is medicinally important herb used in the treatment of inflammatory disorders, asthma, hepatic injuries, pathogenic infection and also shows antiproliferative activity against various cancer cell lines. MATERIALS AND METHODS: Pharmacognostical evaluation (macro-microscopy, physicochemical analysis and preliminary phytochemical analysis), high-performance thin layer chromatography (HPTLC) fingerprinting and chemical profiling by gas chromatography-mass spectrometry (GCMS) of dried roots of J...
April 2017: Pharmacognosy Research
https://www.readbyqxmd.com/read/28538093/toxic-byproduct-formation-during-electrochemical-treatment-of-latrine-wastewater
#11
Justin T Jasper, Yang Yang, Michael R Hoffmann
Electrochemical systems are an attractive option for onsite latrine wastewater treatment due to their high efficiency and small footprint. While concerns remain over formation of toxic byproducts during treatment, rigorous studies examining byproduct formation are lacking. Experiments treating authentic latrine wastewater over variable treatment times, current densities, chloride concentrations, and anode materials were conducted to characterize byproducts and identify conditions that minimize their formation...
May 24, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28537670/clinical-diagnostic-value-of-free-body-of-reduced-iron-protoporphyrin-in-uterus-epithelial-cells-on-cervical-carcinoma-and-precancerous-lesion
#12
X Zhou, J H Zuo, Z Y Wu, Y Ma, S R Ou
OBJECTIVE: Cervical cancer is a common malignant tumor in women with increased incidence and younger onset age. As a curable tumor, timely diagnosis and early intervention are critical. Based on the golden standard of cervical tissues pathology examination, we investigated the value of free body of reduced iron protoporphyrin (FH) in uterus epithelial cells for the diagnosis of cervical cancer and precancerous lesions, aiming to provide novel methods for early screening of cervical cancer...
May 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28537488/capturing-human-na%C3%A3-ve-pluripotency-in-the-embryo-and-in-the-dish
#13
Ludovic Zimmerlin, Tea Soon Park, Elias T Zambidis
Although human embryonic stem cells (hESC) were first derived almost 20 years ago, it was only recently acknowledged that they share closer molecular and functional identity to post-implantation lineage-primed murine epiblast stem cells (EpiSC) than to naïve pre-implantation ICM-derived mouse embryonic stem cells (ESC). A myriad of transcriptional, epigenetic, biochemical, and metabolic attributes have now been described that distinguish naïve and primed pluripotent states in both rodents and humans. Conventional hESC and human induced pluripotent stem cells (hiPSC) appear to lack many of the defining hallmarks of naïve mouse ESC...
May 24, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28537201/capturing-sexual-assault-data
#14
S Aqif Mukhtar, Debbie A Smith, Maureen A Phillips, Maire C Kelly, Renate R Zilkens, James B Semmens
BACKGROUND: The Sexual Assault Resource Center (SARC) in Perth, Western Australia provides free 24-hour medical, forensic, and counseling services to persons aged over 13 years following sexual assault. OBJECTIVE: The aim of this research was to design a data management system that maintains accurate quality information on all sexual assault cases referred to SARC, facilitating audit and peer-reviewed research. METHODS: The work to develop SARC Medical Services Clinical Information System (SARC-MSCIS) took place during 2007-2009 as a collaboration between SARC and Curtin University, Perth, Western Australia...
January 1, 2017: HIM Journal
https://www.readbyqxmd.com/read/28536790/a-chemometric-assisted-lc-ms-ms-method-for-the-simultaneous-determination-of-17-limonoids-from-different-parts-of-xylocarpus-granatum-fruit
#15
Xiaowei Shi, Yibing Wu, Tao Lv, Yufang Wang, Yan Fu, Mengmeng Sun, Qingwen Shi, Changhong Huo, Qiao Wang, Yucheng Gu
The marine mangrove Xylocarpus granatum is used as a folk medicine and is rich in bioactive limonoids. The quantitative determination of the chemical composition and distribution of limonoids in different parts of X. granatum fruit (fruit peel, seed coat, seed kernels, seed, and fruit) is significant for authentication and quality control purposes. However, the quantitative determination of limonoids in X. granatum has not yet been reported. In this study, a chemometric-assisted liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed and validated for the simultaneous determination of 17 limonoids to reveal the chemical composition and distribution in different parts of X...
May 23, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28536641/review-dna-barcoding-and-chromatography-fingerprints-for-the-authentication-of-botanicals-in-herbal-medicinal-products
#16
REVIEW
Bashir Mohammed Abubakar, Faezah Mohd Salleh, Mohd Shahir Shamsir Omar, Alina Wagiran
In the last two decades, there has been a tremendous increase in the global use of herbal medicinal products (HMPs) due to their claimed health benefits. This has led to increase in their demand and consequently, also, resulted in massive adulteration. This is due to the fact that most of the traditional methods cannot identify closely related species in a process product form. Therefore the urgent need for simple and rapid identification methods resulted in the discovery of a novel technique. DNA barcoding is a process that uses short DNA sequence from the standard genome for species identification...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28534831/rapidly-simultaneous-determination-of-six-effective-components-in-cistanche-tubulosa-by-near-infrared-spectroscopy
#17
Xinhong Wang, Xiaoguang Wang, Yuhai Guo
Quantitative determination of multiple effective components in a given plant usually requires a very large amount of authentic natural products. In this study, we proposed a rapid and non-destructive method for the simultaneous determination of echinacoside, verbascoside, mannitol, sucrose, glucose and fructose in Cistanche tubulosa by near infrared spectroscopy (NIRS). Near infrared diffuse reflectance spectroscopy (DRS) and high performance liquid chromatography (HPLC) were conducted on 116 batches of C. tubulosa samples...
May 19, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28534672/a-review-of-the-principles-and-applications-of-near-infrared-spectroscopy-to-characterize-meat-fat-and-meat-products
#18
Nuria Prieto, Olga Pawluczyk, Michael Edward Russell Dugan, Jennifer Lynn Aalhus
Consumer demand for quality and healthfulness has led to a higher need for quality assurance in meat production. This requirement has increased interest in near-infrared (NIR) spectroscopy due to the ability for rapid, environmentally friendly, and non-invasive prediction of meat quality or authentication of added-value meat products. This review includes the principles of NIR spectroscopy, pre-processing methods, and multivariate analyses used for quantitative and qualitative purposes in the meat sector. Recent advances in portable NIR spectrometers that enable new online applications in the meat industry are shown and their performance evaluated...
January 1, 2017: Applied Spectroscopy
https://www.readbyqxmd.com/read/28534465/mineral-content-as-a-tool-for-the-assessment-of-honey-authenticity
#19
Milica Jovetić, Jelena Trifković, Dalibor Stanković, Dragan Manojlović, Dušanka Milojković-Opsenica
The present work aims to provide a contribution to the overall investigation of European unifloral honeys with regard to authentication according to botanical and geographical origins. The mineral content of 206 monofloral honey samples of five botanical origins from six different regions in Serbia was investigated by inductively coupled plasma optical emission spectrometry. Chemometric techniques were applied for the classification and differentiation of acacia, sunflower, and linden honey according to botanical origin, as well as acacia honey samples according to regional origin...
May 23, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28532427/microrna-275-and-its-target-vitellogenin-2-are-crucial-in-ovary-development-and-blood-digestion-of-haemaphysalis-longicornis
#20
Jiawei Hao, Jin Luo, Ze Chen, Qiaoyun Ren, Jinxia Guo, Xiaocui Liu, Qiuyu Chen, Feng Wu, Zhen Wang, Jianxun Luo, Hong Yin, Hui Wang, Guangyuan Liu
BACKGROUND: The hard tick Haemaphysalis longicornis is widely distributed in eastern Asia, New Zealand and Australia and is considered the major vector of Theileria and Babesia, harmful parasites to humans and animals. Female ticks need successful blood meals to complete the life-cycle. Therefore, elucidation of the underlying molecular mechanisms of H. longicornis development and reproduction is considered important for developing control strategies against the tick and tick-borne pathogens...
May 22, 2017: Parasites & Vectors
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