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Mohammad Shakir, Summaiya Hanif, Md Fazle Alam, Hina Younus
Novel bio-relevant monometallic Schiff base complexes of the type, [Cu(L(1))2] (1), [Zn(L(1))2]·2H2O (2), [Cu(L(2))2]·2H2O (3) and [Zn(L(2))2]·H2O (4) [L(1)(E)-3-(((3-chloro-4-hydroxyphenyl)imino)methyl)naphthalen-2-ol and L(2)(E)-2-chloro-4-((1-(5-chloro-2-hydroxyphenyl)ethylidene)amino)phenol] were synthesized and characterized. A comparative account of analytical, spectroscopic (FT-IR, (1)H and (13)C NMR, Mass, UV-vis and EPR), thermal (TGA/DTA), XRD and SEM studies revealed a correlation between the structure and function of these biologically active molecular entities...
October 11, 2016: Journal of Photochemistry and Photobiology. B, Biology
Sangil Kwon, Yonghee Park, Junhong Park, Jeongsoo Kim, Kwang-Ho Choi, Jun-Seok Cha
This paper presents the on-road nitrogen oxides (NOx) emissions measurements from Euro 6 light-duty diesel vehicles using a portable emissions measurement system on the predesigned test routes in the metropolitan area of Seoul, Korea. Six diesel vehicles were tested and the NOx emissions results were analyzed according to the driving routes, driving conditions, data analysis methods, and ambient temperatures. Total NOx emissions for route 1, which has higher driving severity than route 2, differed by -4-60% from those for route 2...
October 22, 2016: Science of the Total Environment
Jing Jiang, You-Jin Zhao, Xin-Yu Hu, Ming-Ying Du, Zi-Qi Chen, Min Wu, Kai-Ming Li, Hong-Yan Zhu, Poornima Kumar, Qi-Yong Gong
BACKGROUND: Multiple meta-analyses of diffusion tensor imaging (DTI) studies have reported impaired white matter integrity in patients with major depressive disorder (MDD). However, owing to inclusion of medicated patients in these studies, it is difficult to conclude whether these reported alterations are associated with MDD or confounded by medication effects. A meta-analysis of DTI studies on medication-free (medication-naive and medication washout) patients with MDD would therefore be necessary to disentangle MDD-specific effects...
October 25, 2016: Journal of Psychiatry & Neuroscience: JPN
Sierra E Carter, Rheeda L Walker, Carolyn E Cutrona, Ronald L Simons, Steven R H Beach
OBJECTIVE: We examined the mediational role of symptoms of anxiety in accounting for the association of discrimination and chronic health conditions among African-American women. METHODS: Participants were 646 African-American women who completed self-report measures of perceived racial discrimination, symptoms of anxiety, and diagnosed chronic health problems. RESULTS: We examined the mediation hypothesis using a path analytic procedure. Mediational analyses indicated that, above and beyond symptoms of depression, age, and education status, anxiety symptoms were associated with both racial discrimination (β = ...
November 2016: American Journal of Health Behavior
Ramaz Khomeriki, Levan Chotorlishvili, Igor Tralle, Jamal Berakdar
We uncover and identify the regime for a magnetically and ferroelectrically controllable negative refraction of light traversing multiferroic, oxide-based metastructure consisting of alternating nanoscopic ferroelectric (SrTiO2) and ferromagnetic (Y3Fe2(FeO4)3, YIG) layers. We perform analytical and numerical simulations based on discretized, coupled equations for the self-consistent Maxwell/ferroelectric/ferromagnetic dynamics and obtain a biquadratic relation for the refractive index. Various scenarios of ordinary and negative refraction in different frequency ranges are analyzed and quantified by simple analytical formula that are confirmed by full-fledge numerical simulations...
October 25, 2016: Nano Letters
Filipa R Fernandes Simoes, Nitin Kumar Batra, Bashir H Warsama, Christian G Canlas, Shashikant Pandurang Patole, Tahir F Yapici, Pedro M F J Costa
Inductively coupled plasma optical emission spectroscopy (ICP-OES) is a common, relatively low cost and straightforward analytical technique for the study of trace quantities of metals in solid materials but its applicability to nanocarbons (e.g. graphene and nanotubes) has suffered from the lack of efficient digestion steps and certified reference materials (CRM). Here, various commercial and certified graphitic carbon materials were subjected to a "two-steps" microwave-assisted acid digestion procedure and the concentration of up to 18 elements was analysed by ICP-OES...
October 25, 2016: Analytical Chemistry
Chuchu Huang, Qing Li, Jiamei Mo, Zheng Wang
We herein describe a novel method of hydride generation (HG) coupled to a newly designed atmospheric pressure solution-cathode glow discharge (SCGD) spectrometric technique for the ultratrace determination of tin, germanium, and selenium. In this novel SCGD process, gas introduction was permitted using a hollow titanium tube as both the anode and sampling port. In these experiments, the analytes were converted into volatile hydrides upon passing through the hydride generator, and were introduced into the near-anode region of the SCGD system, where they were detected directly by atomic emission spectrometry (AES)...
October 25, 2016: Analytical Chemistry
Dian Su, Carl K Ng, Mehraban Khosraviani, Shang-Fan Yu, Ely Cosino, Surinder Kaur, Keyang Xu
Affinity capture liquid chromatography-mass spectrometry (LC-MS) intact antibody assay has been widely used for direct drug-to-antibody ratio (DAR) and catabolite characterization of antibody-drug conjugates (ADCs). However, the intact mass spectra of new ADCs, which incorporate new types of linkers and/or payloads other than maytansines and auristatins, are more complex than those examined previously. The current method has showed some limitations in elucidating certain structural modifications. Herein, we report an alternative analytical approach for ADCs, such as THIOMABTM antibody-drug conjugates (TDCs), where the linker-drugs are site-specifically conjugated in the Fab region...
October 25, 2016: Analytical Chemistry
Elena Meirzadeh, Liel Sapir, Hagai Cohen, Sidney R Cohen, David Ehre, Daniel Harries, Meir Lahav, Igor Lubomirsky
The riddle of anomalous polar behavior of the centrosymmetric crystal of α-glycine is resolved by the discovery of a polar, several hundred nanometer thick hydrated layer, created at the {010} faces during crystal growth. This layer was detected by two independent pyroelectric analytical methods: (i) periodic temperature change technique (Chynoweth) at ambient conditions and (ii) contactless X-ray photoelectron spectroscopy under ultrahigh vacuum. The total polarization of the surface layer is extremely large, yielding ≈1 μC·cm(-2), and is preserved in ultrahigh vacuum, but disappears upon heating to 100 °C...
October 25, 2016: Journal of the American Chemical Society
Han-Shi Zeng, Wei-Xia Lin, Shu-Tao Zhao, Zhan-Hui Zhang, Heng-Wen Yang, Feng-Ping Chen, Yuan-Zong Song, Zhi-Nan Yin
Neonatal intrahepatic cholestasis caused by citrin deficiency (NICCD) is an autosomal recessive disorder resulting from biallelic mutations of the SLC25A13 gene. Due to the lack of well‑recognized clinical or biochemical diagnostic criteria, the definitive diagnosis of this disease relies on the genetic analysis of SLC25A13 at present. As novel large deletion/insertion mutations of the SLC25A13 gene are difficult to detect using routine DNA analytic approaches, the timely diagnosis of patients with these types of mutations remains a challenge...
October 21, 2016: Molecular Medicine Reports
A R Docherty, A Moscati, R Peterson, A C Edwards, D E Adkins, S A Bacanu, T B Bigdeli, B T Webb, J Flint, K S Kendler
Biometrical genetic studies suggest that the personality dimensions, including neuroticism, are moderately heritable (~0.4 to 0.6). Quantitative analyses that aggregate the effects of many common variants have recently further informed genetic research on European samples. However, there has been limited research to date on non-European populations. This study examined the personality dimensions in a large sample of Han Chinese descent (N=10 064) from the China, Oxford, and VCU Experimental Research on Genetic Epidemiology study, aimed at identifying genetic risk factors for recurrent major depression among a rigorously ascertained cohort...
October 25, 2016: Translational Psychiatry
Chirag J Patel, Nam Pho, Michael McDuffie, Jeremy Easton-Marks, Cartik Kothari, Isaac S Kohane, Paul Avillach
The National Health and Nutrition Examination Survey (NHANES) is a population survey implemented by the Centers for Disease Control and Prevention (CDC) to monitor the health of the United States whose data is publicly available in hundreds of files. This Data Descriptor describes a single unified and universally accessible data file, merging across 255 separate files and stitching data across 4 surveys, encompassing 41,474 individuals and 1,191 variables. The variables consist of phenotype and environmental exposure information on each individual, specifically (1) demographic information, physical exam results (e...
October 25, 2016: Scientific Data
Dawn Witt, Gretchen Benson, Susan Campbell, Arthur Sillah, Kathy Berra
PURPOSE: Social support has been associated with beneficial effects on many disease states and overall health and well-being. However, there is limited research exploring the impact of peer-led support models among women living with coronary heart disease. This study describes the structure of peer-led support groups offered by WomenHeart (WH): The National Coalition for Women Living with Heart Disease, and assesses WH participants' quality of life and social, emotional, and physical health...
November 2016: Journal of Cardiopulmonary Rehabilitation and Prevention
Travis Hoppe, Allen P Minton
In order to better understand how nonspecific interactions between solutes can modulate specific biochemical reactions taking place in complex media, we introduce a simplified model aimed at elucidating general principles. In this model, solutions containing two or three species of interacting globular proteins are modeled as a fluid of spherical particles interacting through square well potentials that qualitatively capture both steric hard core repulsion and longer-ranged attraction or repulsion. The excess chemical potential, or free energy of solvation, of each particle species is calculated as a function of species concentrations, particle radii, and square well interaction range and depth...
October 25, 2016: Journal of Physical Chemistry. B
C Emily Hendrick, Joseph E Potter
BACKGROUND: Breastfeeding is associated with numerous health benefits for the infant and mother. Latina women in the United States have historically had high overall rates of initiation and duration of breastfeeding. However, these rates vary by nativity and time lived in the United States. Exclusive breastfeeding patterns among Latina women are unclear. In this study, we investigate the current and exclusive breastfeeding patterns of Mexican-origin women at four time points from delivery to 10 months postpartum to determine the combined association of nativity and country of education with breastfeeding duration and supplementation...
October 25, 2016: Birth
Tania M Guardado-Alvarez, Wei Chen, Amie E Norton, Melissa M Russell, William B Connick, Jeffrey I Zink
A multifunctional nanoparticle with designed selectivity was made using hollow mesoporous silica, ship-in-a-bottle synthesis of a crystalline solid-state detector, and protection of the crystal by acid-responsive nanogates. The system demonstrates the inverse application of the usual trapping of contents by the gate followed by their release. Instead, the gate protects the contents followed by selective exposure. Crystallization of [Pt(tpy)Cl](PF6) (tpy = 2,2':6',2''-terpyridine) inside the cavity of hollow mesoporous silica created the unique core/shell nanoparticle...
October 25, 2016: Nanoscale
Nagamalai Vasimalai, Maria T Fernandez-Arguelles
Highly fluorescent gold nanodots have been synthesized through a novel rapid, facile and one-pot room temperature route using trithiocyanuric acid as mild reducing agent and surface ligand. The proposed synthesis overcomes limitations of other synthetic routes in terms of cost, time, complexity and environmental risks, and gives rise to highly fluorescent gold nanodots within 10 min at room temperature, with a maximum emission wavelength at 623 nm and a large Stokes shift (213 nm). Moreover, the synthesized gold nanodots showed a large emission QY (9...
November 25, 2016: Nanotechnology
Kenta Morita, Serika Miyazaki, Chiya Numako, Shinya Ikeno, Ryohei Sasaki, Yuya Nishimura, Chiaki Ogino, Akihiko Kondo
An induction of polyacrylic acid-modified titanium dioxide with hydrogen peroxide nanoparticles (PAA-TiO2/H2O2 NPs) to a tumor exerted a therapeutic enhancement of X-ray irradiation in our previous study. To understand the mechanism of the radiosensitizing effect of PAA-TiO2/H2O2 NPs, analytical observations that included DLS, FE-SEM, FT-IR, XAFS, and Raman spectrometry were performed. In addition, highly reactive oxygen species (hROS) which PAA-TiO2/H2O2 NPs produced with X-ray irradiation were quantified by using a chemiluminescence method and a EPR spin-trapping method...
October 25, 2016: Free Radical Research
Hyung Suk Chung, Jeong-Heui Choi, A M Abd El-Aty, Young-Jun Lee, Han Sol Lee, Sangdon Kim, Hee-Jung Jung, Tae-Woo Kang, Ho-Chul Shin, Jae-Han Shim
A simultaneous determination method using solid-phase extraction and liquid chromatography with tandem mass spectrometry was developed to detect and quantify the presence of seven multiclass veterinary antibiotics (13 compounds in total) in surface water samples, which included the effluents of livestock wastewater and sewage treatment plants, as well as the reservoir drainage areas from dense animal farms. The pH of all water samples was adjusted to 2 or 6 before solid-phase extraction using Oasis HLB cartridges...
October 24, 2016: Journal of Separation Science
Katinka Karenberg, Hannes Hudalla, David Frommhold
Impaired cellular innate immune defense accounts for susceptibility to sepsis and its high morbidity and mortality in preterm infants. Leukocyte recruitment is an integral part of the cellular immune response and follows a well-defined cascade of events from rolling of leukocytes along the endothelium to firm adhesion and finally transmigration which is concerted by a variety of adhesion molecules. Recent analytical advances such as fetal intravital microscopy have granted new insights into ontogenetic regulation and maturation of fetal immune cell recruitment...
December 2016: Molecular and Cellular Pediatrics
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