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https://www.readbyqxmd.com/read/28938168/energy-transfer-and-color-tunable-emission-in-tb-3-eu-3-co-doped-sr3lana-po4-3f-phosphors
#1
Shuo Li, Ning Guo, Qimeng Liang, Yu Ding, Huitao Zhou, Ruizhuo Ouyang, Wei Lü
A group of color tunable Sr3LaNa(PO4)3F:Tb(3+),Eu(3+) phosphors were prepared by conventional high temperature solid state method. The phase structures, luminescence properties, fluorescence lifetimes and energy transfer were investigated in detail. Under 369nm excitation, owing to efficient energy transfer of Tb(3+)→Eu(3+), the emission spectra both have green emission of Tb(3+) and red emission of Eu(3+). An efficient energy transfer occur in Tb(3+), Eu(3+) co-doped Sr3LaNa(PO4)3F phosphors. The most possible mechanism of energy transfer is dipole-dipole interaction by Dexter's theoretical model...
September 18, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28937901/pulp-calcification-in-traumatized-primary-teeth-classification-clinical-and-radiographic-aspects
#2
Anna Carolina Volpi Mello-Moura, Ana Maria Antunes Santos, Gabriela Azevedo Vasconcelos Cunha Bonini, Cristina Giovannetti Del Conte Zardetto, Cacio Moura-Netto, Marcia Turolla Wanderley
OBJECTIVE: The aim of this study was to standardize the nomenclature of pulp alteration to pulp calcification (PC) and to classify it according to type, quantity and location, as well as relate it to clinical and radiographic features. STUDY DESIGN: The dental records of 946 patients from the Research and Clinical Center for Dental Trauma in Primary Teeth were studied. Two hundred and fifty PC-traumatized upper deciduous incisors were detected. RESULTS: According to radiographic analysis of the records, 62...
September 22, 2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28936654/imaging-ca-2-dynamics-in-wild-type-and-nadph-oxidase-deficient-mutant-pollen-tubes-with-yellow-cameleon-and-confocal-laser-scanning-microscopy
#3
Christina Maria Franck, Jens Westermann, Aurélien Boisson-Dernier
While cytosolic calcium (Ca(2+)) plays a central role in a myriad of signaling pathways as a secondary messenger, how dynamic changes of cytosolic calcium relate to cell growth control remains poorly understood. The engineering and continuous improvements of genetically encoded calcium sensors such as the Yellow Cameleon (YC) sensors combined with advances in microscopy have allowed imaging with great resolution of the spatiotemporal characteristics of cytosolic [Ca(2+)]cyt in individual cells. An exciting new step consists therefore in cautiously studying calcium dynamics in mutant backgrounds that display disturbed cellular growth behavior to further enhance our understanding on growth-related processes...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28936296/oral-lymphoepithelial-cyst-a-clinicopathological-study-of-26-cases-and-review-of-the-literature
#4
REVIEW
Maria Sykara, Panagiotis Ntovas, Eleni-Marina Kalogirou, Konstantinos I Tosios, Alexandra Sklavounou
INTRODUCTION: Τo describe the clinicopathological features of 26 oral lymphoepithelial cysts (LECs) and review the literature. MATERIAL AND METHODS: Twenty-six cases of oral LECs diagnosed during a 37-year period were retrospectively collected. The patients' gender and age, as well as the main clinical features of the cysts were retrieved from the requisition forms. The main microscopic features were recorded after reevaluation of all cases. Pubmed and Google Scholar electronic databases were searched with the key word "oral LEC"...
August 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28936220/de-novo-assembly-of-the-camellia-nitidissima-transcriptome-reveals-key-genes-of-flower-pigment-biosynthesis
#5
Xingwen Zhou, Jiyuan Li, Yulin Zhu, Sui Ni, Jinling Chen, Xiaojuan Feng, Yunfeng Zhang, Shuangquan Li, Hongguang Zhu, Yuanguang Wen
The golden camellia, Camellia nitidissima Chi., is a well-known ornamental plant that is known as "the queen of camellias" because of its golden yellow flowers. The principal pigments in the flowers are carotenoids and flavonol glycosides. Understanding the biosynthesis of the golden color and its regulation is important in camellia breeding. To obtain a comprehensive understanding of flower development in C. nitidissima, a number of cDNA libraries were independently constructed during flower development. Using the Illumina Hiseq2500 platform, approximately 71...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28935878/old-yellow-enzyme-homologues-in-mucor-circinelloides-expression-profile-and-biotransformation
#6
Alice Romagnolo, Federica Spina, Anna Poli, Sara Risso, Bianca Serito, Michele Crotti, Daniela Monti, Elisabetta Brenna, Luisa Lanfranco, Giovanna Cristina Varese
The reduction of C=C double bond, a key reaction in organic synthesis, is mostly achieved by traditional chemical methods. Therefore, the search for enzymes capable of performing this reaction is rapidly increasing. Old Yellow Enzymes (OYEs) are flavin-dependent oxidoreductases, initially isolated from Saccharomyces pastorianus. In this study, the presence and activation of putative OYE enzymes was investigated in the filamentous fungus Mucor circinelloides, which was previously found to mediate C=C reduction...
September 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28935753/mechanisms-of-transmission-ratio-distortion-at-hybrid-sterility-loci-within-and-between-mimulus-species
#7
Rachel E Kerwin, Andrea L Sweigart
Hybrid incompatibilities are a common correlate of genomic divergence and a potentially important contributor to reproductive isolation. However, we do not yet have a detailed understanding of how hybrid incompatibility loci function and evolve within their native species, or why they are dysfunctional in hybrids. Here, we explore these issues for a well-studied, two-locus hybrid incompatibility between hybrid male sterility 1 (hms1) and hybrid male sterility 2 (hms2) in the closely related yellow monkeyflower species Mimulus guttatus and M...
September 21, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/28935358/ultrastructural-variation-tune-wing-coloration-of-a-moth-asota-caricae-fabricius-1775
#8
Monalisa Mishra, Nibedita Nayak, Harekrshna Sahoo
Butterflies and moths develop highly ordered coloration in their wing for signal transmission. We have investigated the ultrastructural arrangement of wing coloration of a moth Asota caricae, applying light, optical polarized, and scanning electron microscopy, and spectrophotometry. The forewing of the moth is brown in color with a white spot at the center. The hindwing is golden yellow in color with many black patches in it. The ventral part of the forewing and dorsal hindwing share the similar color pattern...
September 13, 2017: Tissue & Cell
https://www.readbyqxmd.com/read/28934998/determination-of-phosphine-residues-in-wheat-and-yellow-corn-with-a-new-developed-method-using-headspace-and-sim-mode-gc-ms
#9
Tamer M A M Thabit, Dalia I H Elgeddawy
Phosphine is considered the main fumigant material used for long time for controlling insect pests in stored grains. This research was focused on the determination of phosphine residues in cereal matrices (mainly wheat and corn) after the fumigation process, using a new procedure developed to reduce the number of analytical steps and improve the chromatographic separation, identification, and quantitation of analyte, thus leading to enhanced total efficiency and sensitivity. This method, using gastight vials for extraction with 5% sulfuric acid, a heating extraction sequence, and injection with headspace and GC-MS in selected-ion monitoring mode, gave clean separation and accurate results...
September 22, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28934650/influence-of-human-activities-and-organic-matters-on-occurrence-of-polybrominated-diphenyl-ethers-in-marine-sediment-core-a-case-study-in-the-southern-yellow-sea-china
#10
Guoguang Wang, Lijuan Feng, Jingshuai Qi, Xianguo Li
The Southern Yellow Sea (SYS) is an important reservoir of anthropogenic organic contaminants, such as polybrominated diphenyl ethers (PBDEs). To reconstruct the historical records of PBDEs and examine their relationships with the human activities and organic matters, a(210)Pb-dated sediment core was collected from the central mud area in the SYS. The concentrations of tri-to hepta-BDEs (∑7PBDEs) and BDE-209 ranged from 9.8 to 99.8 pg g(-1) d.w. and from 12.1 to 855.4 pg g(-1) d.w., respectively, both displaying the increasing trends from the bottom to the surface...
September 18, 2017: Chemosphere
https://www.readbyqxmd.com/read/28934479/targeted-reconstruction-of-t-cell-receptor-sequence-from-single-cell-rna-seq-links-cdr3-length-to-t-cell-differentiation-state
#11
Shaked Afik, Kathleen B Yates, Kevin Bi, Samuel Darko, Jernej Godec, Ulrike Gerdemann, Leo Swadling, Daniel C Douek, Paul Klenerman, Eleanor J Barnes, Arlene H Sharpe, W Nicholas Haining, Nir Yosef
The T cell compartment must contain diversity in both T cell receptor (TCR) repertoire and cell state to provide effective immunity against pathogens. However, it remains unclear how differences in the TCR contribute to heterogeneity in T cell state. Single cell RNA-sequencing (scRNA-seq) can allow simultaneous measurement of TCR sequence and global transcriptional profile from single cells. However, current methods for TCR inference from scRNA-seq are limited in their sensitivity and require long sequencing reads, thus increasing the cost and decreasing the number of cells that can be feasibly analyzed...
September 19, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28934431/genetic-profiling-and-comorbidities-of-zika-infection
#12
Mohammad Ali Moni, Pietro Lio'
Background: The difficulty in distinguishing infection by Zika virus (ZIKV) from other flaviviruses is a global health concern, particularly given the high risk of neurologic complications (including Guillain-Barré syndrome [GBS]) with ZIKV infection. Methods: We developed quantitative frameworks to compare and explore infectome, diseasome, and comorbidity of ZIKV infections. We analyzed gene expression microarray and RNA-Seq data from ZIKV, West Nile fever (WNF), chikungunya, dengue, yellow fever, Japanese encephalitis virus, GBS, and control datasets...
September 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28933848/transfer-reagent-for-bonding-isomers-of-iron-complexes
#13
Monika Schmidt, Andreas Seitz, Maria Eckhardt, Gabor Balazs, Eugenia V Peresypkina, Alexander Virovets, Felix Riedlberger, Michael Bodensteiner, Eva M Zolnhofer, Karsten Meyer, Manfred Scheer
The co-thermolysis of As4 and [Cp''2Zr(CO)2] (Cp'' = η5-C5H3tBu2) results in the formation of [Cp''2Zr(η1:1-As4)] (1) in high yields and the arsenic-rich complex [(Cp''2Zr)(Cp''Zr)(µ,η2:2:1-As5)] (2) as a minor product. In contrast to yellow arsenic, 1 is a light-stable, weighable and storable arsenic source for subsequent reactions. This is demonstrated by the transfer reaction of the As42- unit under mild conditions. The reaction of 1 with [Cp'''Fe(µ-Br)]2 (Cp''' = η5-C5H2tBu3) yields the unprecedented bond isomeric complexes [(Cp'''Fe)2(μ,η4:4-As4)] (3a) and [(Cp'''Fe)2(μ,η4:4-cyclo-As4)] (3b)...
September 21, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28933343/the-european-medical-corps-first-public-health-team-mission-and-future-perspectives
#14
Joana M Haussig, Ettore Severi, Jonathan Hj Baum, Veerle Vanlerberghe, Amparo Laiseca, Laurent Defrance, Cristina Brailescu, Denis Coulombier, Josep Jansa
The 2013-2016 Ebola epidemic in West Africa challenged traditional international mechanisms for public health team mobilisation to control outbreaks. Consequently, in February 2016, the European Union (EU) launched the European Medical Corps (EMC), a mechanism developed in collaboration with the World Health Organization (WHO) to rapidly deploy teams and equipment in response to public health emergencies inside and outside the EU. Public Health Teams (PHTs), a component of the EMC, consist of experts in communicable disease prevention and control from participating countries and the European Centre for Disease Prevention and Control (ECDC), to support affected countries and WHO in risk assessment and outbreak response...
September 14, 2017: Euro Surveillance: Bulletin Européen sur les Maladies Transmissibles, European Communicable Disease Bulletin
https://www.readbyqxmd.com/read/28933321/dokdonia-lutea-sp-nov-isolated-from-sargassum-fulvellum-seaweed
#15
Seon Choi, Joo Won Kang, Ji Hee Lee, Chi Nam Seong
A non-motile, yellow-coloured and rod-shaped bacterium, designated strain SFD34T, was isolated from seaweed collected from the South Sea, Republic of Korea. Cells were Gram-stain-negative, aerobic, catalase-positive and oxidase-negative. The major fatty acids were iso-C15 : 0, iso-C17 : 0 3-OH and iso-C15 : 1 G. Strain SFD34T contained MK-6 and phosphatidylethanolamine as the only isoprenoid quinone and major polar lipid, respectively. The DNA G+C content was 35 mol%. A phylogenetic tree based on 16S rRNA gene sequences showed that strain SFD34T formed evolutionary lineage within the radiation enclosing the members of the genus Dokdonia with Dokdoniapacifica SW230T (96...
September 21, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28933318/sphingomonas-antarctica-sp-nov-isolated-from-antarctic-tundra-soil
#16
Yao Huang, Ziyan Wei, Wangmu Danzeng, Myong Chol Kim, Guoxin Zhu, Yumin Zhang, Zuobing Liu, Fang Peng
Strain 200T, isolated from a soil sample taken from Antarctic tundra soil around Zhongshan Station, was found to be a Gram-stain-negative, yellow-pigmented, catalase-positive, oxidase-negative, non-motile, non-spore-forming, rod-shaped and aerobic bacterium. Strain 200T grew optimally at pH 7.0 and in the absence of NaCl on R2A. Its optimum growth temperature was 20 °C. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain 200T belonged to the genus Sphingomonas. Strain 200T showed the highest sequence similarities to Sphingomonas kyeonggiense THG-DT81T (95...
September 21, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28933129/-analysis-of-color-regulation-of-fluoritum-in-chinese-pharmacopoeia-based-on-the-coloration-mechanism-of-fluorite
#17
Ting Han, Zhe Jia, Hui Zhang, Huan Liu, Yan Gao, Ying Zhang, Qing-Hua Lin, Shu-Ya Xu, Xin-Fang Xu, Xiang-Ri Li
The fluoritum is used for gynecology frequently and it's for those diseases: kidney yang deficiency, Gong cold sterility, palpitation due to fright, insomnia and dreaminess and cold cough. It's ruled in Chinese Pharmacopoeia (1985 edition) that the fluoritum originates from fluorite which belongs to fluoride minerals. Its main content is CaF2. The colors are of differents grades with purple or green. In the market, there are large differences in quality and it has various colors. Besides of the ruled color of purple and green, white and yellow are also common colors...
December 2016: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28933115/-rancidness-of-armeniacae-semen-amarum-involving-bianzhuang-lunzhi
#18
Jian-Ting Gong, Li-Ying Zhao, Bauer Rudolf, Wen-Juan Mi, Yang Li, Jia-Hui Li, Zhi-Yu Ren, Dong Xu, Ting Zhao, Yong-Hong Yan
This article aims to compare the qualities of Armeniacae Semen Amarum before and after rancidness, in order to study the rancidness of Armeniacae Semen Amarum. In the experiment, content of fatty oil, acid value and peroxide value were determined before and after rancidness,respectively. Meanwhile, HPLC, GC-MS were utilized to analyze laetrile and fatty acid components. Besides, colorimeter and e-nose were introduced to quantify and compare "color and odor". A correlation analysis was conducted on the above results...
December 2016: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28932611/chronic-pelvic-pain-and-infertility-resulting-from-unrecognized-retained-laminaria
#19
Wesley Nilsson, Sasha Mikhael, Jennifer Kaplan
BACKGROUND: In 2013, the abortion rate in the United States was found to be 200 abortions per 1,000 live births. Of these, the CDC estimates that nearly 49% were performed using unsafe measures. Even when these procedures are safely performed, patients are at risk for immediate or delayed complications. In second-trimester terminations, mechanical dilation with an osmotic dilator is common to allow for delivery of the fetus. The Japanese seaweed Laminaria japonica is used to achieve this purpose...
2017: Case Reports in Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28932235/zika-virus-congenital-syndrome-experimental-models-and-clinical-aspects
#20
REVIEW
Carolina Manganeli Polonio, Carla Longo de Freitas, Nagela Ghabdan Zanluqui, Jean Pierre Schatzmann Peron
Viral infections have long been the cause of severe diseases to humans, increasing morbidity and mortality rates worldwide, either in rich or poor countries. Yellow fever virus, H1N1 virus, HIV, dengue virus, hepatitis B and C are well known threats to human health, being responsible for many million deaths annually, associated to a huge economic and social cost. In this context, a recently introduced flavivirus in South America, called Zika virus (ZIKV), led the WHO to declare in February 1st 2016 a warning on Public Health Emergency of International Concern (PHEIC)...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
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