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https://www.readbyqxmd.com/read/28815775/pet-switching-mechanism-of-a-napthalimide-derivative-with-its-solvatochromic-behaviour-an-experimental-and-theoretical-study-with-in-cell-investigations
#1
Dipti Singharoy, Sourav Chowdhury, Soumya Sundar Mati, Swadesh Ghosh, Krishnananda Chattopadhyay, Subhash Chandra Bhattacharya
The sole existence of t-bone shape napthalimide derivative [2-(2-aminoethyl)-1H-benzo[de]isoquinoline-1,3(2H)-dione] (NAP) which in turn gives rise to a PET mechanism, has been established using a combination of experimental and theoretical studies. In parallel an in vitro-in cell PET mechanism has also been shown. To understand the photo physics of NAP, solvent studies have been carried out in different solvents. In addition, theoretical calculations have been resorted to explain the spectroscopic properties through optimized structures...
August 17, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28807548/application-of-a-simple-column-switching-ion-chromatography-technique-for-removal-of-matrix-interferences-and-sensitive-fluorescence-determination-of-acidic-compounds-pharmaceutical-drugs-in-complex-samples
#2
Nadeem Muhammad, Qamar Subhani, Fenglian Wang, Dandan Guo, Qiming Zhao, Shuchao Wu, Yan Zhu
This work illustrates the introduction of a simple, rugged and flexible column-switching ion chromatography (IC) technique for an automated on-line QuEChERS extracted samples extracts washing followed by sensitive fluorescence (FLD) determination of five acidic pharmaceutical drugs namely; clofibric acid (CLO), ibuprofen (IBU), aspirin (ASP), naproxen (NAP) and flurobrofen (FLU) in three complex samples (spinach, apple and hospital sewage sludge). An old anion exchange column IonPac(®) AS11-HC was utilized as a pre-treatment column for on-line washing of inorganic and organic interferences followed by isocratic separation of five acidic drugs with another anion exchange IonPac(®) AS12A analytical column by exploiting the column-switching technique...
July 5, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28806051/ordered-mesoporous-nico2o4-nanospheres-as-a-novel-electrocatalyst-platform-for-1-naphthol-and-2-naphthol-individual-sensing-application
#3
Jiangjiang Zhang, Qianwen Mei, Yaping Ding, Kai Guo, Xinxin Yang, Jing-Tai Zhao
The novel ordered mesoporous NiCo2O4 (meso-NiCo2O4) nanospheres were synthesized by the nanocasting strategy followed by a calcination process for 2-naphthol (2-NAP) and 1-naphthol (1-NAP) individual sensing application. The as-obtained meso-NiCo2O4 material possesses mesoporous structure in spinel crystalline type with larger specific surface area than other structures. The meso-NiCo2O4 modified carbon paste electrode exhibited excellent electrocatalytic performance for NAP detection by amperometry measurement...
August 14, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28802977/adsorption-and-coadsorption-mechanisms-of-cr-vi-and-organic-contaminants-on-h3po4-treated-biochar
#4
Nan Zhao, Chuanfang Zhao, Yizhong Lv, Weifang Zhang, Yuguo Du, Zhengping Hao, Jing Zhang
The study of simultaneous removal of heavy metals and organic contaminants has practical applications due to the coexistence of complex pollutants in the wastewater or soil. In this work, biochar was prepared to study the removal efficiencies of Cr(VI), naphthalene (NAP) and bisphenol A (BPA) in the single or mixed systems. H3PO4-treated biochar presented a much higher adsorption capacity of the pollutants than the untreated biochar and also showed a high resistance to coexisting salts. The maximum adsorption capacities for Cr(VI) and BPA were 116...
August 7, 2017: Chemosphere
https://www.readbyqxmd.com/read/28802282/evolution-of-mediterranean-diets-and-cuisine-concepts-and-definitions
#5
Sue Radd-Vagenas, Antigone Kouris-Blazos, Maria Fiatarone Singh, Victoria M Flood
BACKGROUND AND OBJECTIVES: The Mediterranean diet has been demonstrated to provide a range of health benefits in observational and clinical trials and adopted by various dietary guidelines. However, a broad range of definitions exist impeding synthesis across trials. This review aims to provide a historical description of Mediterranean diets, from the ancient to the modern, to inform future educational and diet index tool development representing the 'traditional' Mediterranean diet. METHODS AND STUDY DESIGN: Nine databases were searched from inception to July 2015 to identify papers defining the Mediterranean diet...
2017: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28801833/concentrations-input-prediction-and-probabilistic-biological-risk-assessment-of-polycyclic-aromatic-hydrocarbons-pahs-along-gujarat-coastline
#6
Haren B Gosai, Bhumi K Sachaniya, Dushyant R Dudhagara, Rahul K Rajpara, Bharti P Dave
A comprehensive investigation was conducted in order to assess the levels of PAHs, their input prediction and potential risks to bacterial abundance and human health along Gujarat coastline. A total of 40 sediment samples were collected at quarterly intervals within a year from two contaminated sites-Alang-Sosiya Shipbreaking Yard (ASSBRY) and Navlakhi Port (NAV), situated at Gulf of Khambhat and Gulf of Kutch, respectively. The concentration of ΣPAHs ranged from 408.00 to 54240.45 ng g(-1) dw, indicating heavy pollution of PAHs at both the contaminated sites...
August 11, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28799590/potentiating-the-immune-response-of-muc1-based-antitumor-vaccines-using-a-peptide-based-nanovector-as-a-promising-vaccine-adjuvant
#7
Yonghui Liu, Youzhi Wang, Fan Yu, Zhenqing Zhang, Zhimou Yang, Wenpeng Zhang, Peng George Wang, Wei Zhao
We utilize the supramolecular self-assembling peptide of Nap-G(D)F(D)F(D)Y(D)K to construct chemically programmed, self-assembling and self-adjuvant MUC1-based antitumor vaccines. The vaccines, with antigen and adjuvant conjugation through covalent bonds, elicited both humoral and cellular immune responses.
August 11, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28797052/similarities-between-plant-traits-based-on-their-connection-to-underlying-gene-functions
#8
Jan-Peter Nap, Gabino F Sanchez-Perez, Aalt D J van Dijk
Understanding of phenotypes and their genetic basis is a major focus in current plant biology. Large amounts of phenotype data are being generated, both for macroscopic phenotypes such as size or yield, and for molecular phenotypes such as expression levels and metabolite levels. More insight in the underlying genetic and molecular mechanisms that influence phenotypes will enable a better understanding of how various phenotypes are related to each other. This will be a major step forward in understanding plant biology, with immediate value for plant breeding and academic plant research...
2017: PloS One
https://www.readbyqxmd.com/read/28796989/do-we-need-mechanical-bowel-preparation-before-benign-gynecologic-laparoscopic-surgeries-a-randomized-single-blind-controlled-trial
#9
Baris Mulayim, Burak Karadag
AIMS: The primary objective of this study was to compare the effect of mechanical bowel preparation (MBP) with oral sodium phosphate (NaP) solution vs. MBP with NaP enema vs. fasting only with respect to intraoperative visualization of the surgical field, ease of bowel handling, and overall ease of surgery in patients undergoing benign gynecologic laparoscopic procedures. METHODS: The patients were randomized into one of 3 groups: oral NaP, NaP enema, or fasting only...
August 11, 2017: Gynecologic and Obstetric Investigation
https://www.readbyqxmd.com/read/28765283/heme-and-nitric-oxide-binding-by-the-transcriptional-regulator-dnrf-from-the-marine-bacterium-dinoroseobacter-shibae-increases-napd-promoter-affinity
#10
Matthias Ebert, Peter Schweyen, Martin Br Oumlring, Sebastian Laass, Elisabeth H Aumlrtig, Dieter Jahn
Under oxygen-limiting conditions, the marine bacterium Dinoroseobacter shibae DFL12(T) generates energy via denitrification, a respiratory process in which nitric oxide (NO) is an intermediate. Accumulation of NO may cause cytotoxic effects. The response to this nitrosative (NO-triggered) stress is controlled by the Crp/Fnr-type transcriptional regulator DnrF. We analyzed the response to NO and the mechanism of NO sensing by the DnrF regulator. Using reporter gene fusions and transcriptomics, here we report that DnrF selectively repressed nitrate reductase (nap) genes, preventing further NO formation...
August 1, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28758984/assessment-of-chlorophyll-a-algorithms-considering-different-trophic-statuses-and-optimal-bands
#11
Salem Ibrahim Salem, Hiroto Higa, Hyungjun Kim, Hiroshi Kobayashi, Kazuo Oki, Taikan Oki
Numerous algorithms have been proposed to retrieve chlorophyll-a concentrations in Case 2 waters; however, the retrieval accuracy is far from satisfactory. In this research, seven algorithms are assessed with different band combinations of multispectral and hyperspectral bands using linear (LN), quadratic polynomial (QP) and power (PW) regression approaches, resulting in altogether 43 algorithmic combinations. These algorithms are evaluated by using simulated and measured datasets to understand the strengths and limitations of these algorithms...
July 31, 2017: Sensors
https://www.readbyqxmd.com/read/28757569/diarylethenes-display-in-vitro-anti-tb-activity-and-are-efficient-hits-targeting-the-mycobacterium-tuberculosis-hu-protein
#12
María Angélica Suarez, Jhesua Valencia, Christian Camilo Cadena, Raktim Maiti, Chandreyee Datta, Gloria Puerto, José Hipólito Isaza, Homero San Juan, Valakunja Nagaraja, Juan David Guzman
Tuberculosis continues to be a great source of concern in global health because of the large reservoir of humans infected with the bacilli and the appearance of clinical isolates resistant to a wide array of anti-tuberculosis drugs. New drugs with novel mechanisms of action on new targets are urgently required to reduce global tuberculosis burden. Mycobacterium tuberculosis nucleoid associated protein (NAP) HU has been shown to be druggable and essential for the organism's survival. In this study, four diarylethenes were synthesized using a one-pot decarboxylated Heck-coupling of coumaric acids with iodoanisoles...
July 25, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28756948/the-sleeping-infant-brain-anticipates-development
#13
Manuela Friedrich, Ines Wilhelm, Matthias Mölle, Jan Born, Angela D Friederici
From the age of 3 months, infants learn relations between objects and co-occurring words [1]. These very first representations of object-word pairings in infant memory are considered as non-symbolic proto-words comprising specific visual-auditory associations that can already be formed in the first months of life [2-5]. Genuine words that refer to semantic long-term memory have not been evidenced prior to 9 months of age [6-9]. Sleep is known to facilitate the reorganization of memories [9-14], but its impact on the perceptual-to-semantic trend in early development is unknown...
August 7, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28752083/recognition-of-lynch-syndrome-amongst-newly-diagnosed-colorectal-cancers-at-st-paul-s-hospital
#14
Steven Pi, Estello Nap-Hill, Jennifer Telford, Robert Enns
BACKGROUND: Lynch Syndrome (LS) is the most common cause of inherited colorectal cancer (CRC). In British Columbia, most centres still use clinical criteria (Amsterdam II, Revised Bethesda, or the BC Cancer Agency's criteria) to determine who should undergo further first-line testing in the form of microsatellite instability or immunohistochemistry staining. Given the limitations with this strategy, LS is thought to be underrecognized. OBJECTIVE: To investigate whether LS is truly underrecognized when compared to the reported prevalence...
2017: Canadian Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28750245/antecedents-and-outcomes-of-nurses-rest-break-organization-a-scoping-review
#15
REVIEW
Johannes Wendsche, Argang Ghadiri, Amelie Bengsch, Jürgen Wegge
OBJECTIVES: To prevent an accumulation of strain during work and to reduce error risk, many countries have made rest breaks mandatory. In the nursing literature, insufficient rest break organization is often reported. However, the outcomes of nurses' rest break organization and its anteceding factors are less clear. DATA SOURCES: We searched for academic literature on nurses' rest break organization in electronic databases (PubMed, Medline, PsycArticles, PsycINFO, CINAHL)...
July 14, 2017: International Journal of Nursing Studies
https://www.readbyqxmd.com/read/28744881/new-common-program-requirements-for-the-resident-physician-workforce-and-the-omission-of-strategic-napping-a-missed-opportunity
#16
Michelle M Shnayder, Joan E St Onge, Alberto J Caban-Martinez
OBJECTIVES: Napping has known benefits for fatigue mitigation and improved alertness. However the Accreditation Council for Graduate Medical Education (ACGME) New Common Program Requirements recently removed the 16 h work limit for PGY1 residents and removed any suggestions of napping. METHODS: We utilized a cross-sectional study design to administer a 44-item questionnaire in June 2016 to 858 residents and fellows at one large urban academic medical center. We assessed: 1) resident physician sentiment of work environment supportiveness for napping at work; and 2) agreement with 2011 ACGME guidelines on workweek hour limitations and strategic napping recommendations...
July 26, 2017: American Journal of Industrial Medicine
https://www.readbyqxmd.com/read/28741684/how-does-mandibular-bone-atrophy-influence-the-masticatory-function-ohrqol-and-satisfaction-in-overdenture-wearers-clinical-results-until-1-year-post-loading
#17
Raissa Micaella Marcello-Machado, Fernanda Faot, Alessandra Julie Schuster, Amália Machado Bielemann, Otacílio Luiz Chagas Júnior, Altair Antoninha Del Bel Cury
This longitudinal clinical study investigated the differences in the masticatory function (MF), satisfaction and oral health related quality of life (OHRQoL) between atrophic patients (AP) and non-atrophic patients (NAP) before and after rehabilitation with mandibular overdenture (MO). Twenty-six complete denture (CD) wearers were categorized into two groups, according to the mandibular bone atrophy (MBA) degree. MF was evaluated before and after 1, 3, 6 and 12 months of the MO loading via 2 standardized tests: i) MP, masticatory performance (MP_X50, MPB, ME 5...
July 25, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28738305/contamination-characteristics-and-source-apportionment-of-methylated-pahs-in-agricultural-soils-from-yangtze-river-delta-china
#18
Weixiao Chen, Xinyi Wu, Haiyun Zhang, Jianteng Sun, Wenxin Liu, Lizhong Zhu, Xiangdong Li, Daniel C W Tsang, Shu Tao, Xilong Wang
Alkylated PAHs (APAHs) have been shown to be more toxic and persistent than their non-alkylated parent compounds. However, little is known about the extent of soil contamination by these pollutants. To help understand agricultural soil pollution by these compounds at a regional scale, a total of 18 methylated PAHs (MPAHs, a major class of APAHs) in 243 soil samples were analyzed. These soil samples were collected from 11 sites in the Yangtze River Delta (YRD) region, a representative fast developing area in China...
August 10, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28737439/systematic-review-and-meta-analysis-is-bowel-preparation-still-necessary-in-small-bowel-capsule-endoscopy
#19
Diana E Yung, Emanuele Rondonotti, Catherine Sykes, Marco Pennazio, John N Plevris, Anastastios Koulaouzidis
INTRODUCTION: Optimal bowel preparation for small bowel capsule endoscopy(SBCE) is controversial. This meta-analysis aimed to investigate the effects of laxatives in SBCE. METHODS: A comprehensive literature search was conducted for studies investigating the use of laxatives in SBCE. The primary outcome was diagnostic yield(DY) for SB findings; secondary outcomes SB visualization quality(SBVQ) and completion rate(CR). Pooled odds ratios(ORs) with 95% confidence intervals(CIs) and number needed to treat(NNT) were calculated...
July 24, 2017: Expert Review of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28730878/investigational-drugs-in-development-for-hepatitis-d
#20
Mario Rizzetto
Treatment of chronic hepatitis D still relies on Interferon. To improve efficacy, new therapeutic strategies are in development which aim to deprive the Hepatitis D Virus (HDV) of functions of the Hepatitis B Virus and of the host required for its life-cycle. Areas covered: The therapeutic options are; 1) The inhibition of the farnesylation of the large HD-protein permissive of virion assembly with Lonafarnib, 2) The blocking of HBsAg entry into cells with Myrcludex B via the inhibition of the Sodium Taurocholate Cotransporting Receptor, to prevent the spreading of HDV to uninfected hepatocytes, 3) The reduction of subviral HBsAg particles by REP 2139, leading to diminished virion morphogenesis ...
July 28, 2017: Expert Opinion on Investigational Drugs
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