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https://www.readbyqxmd.com/read/28222351/the-land-morphology-approach-to-flood-risk-mapping-an-application-to-portugal
#1
N S Cunha, M R Magalhães, T Domingos, M M Abreu, C Küpfer
In the last decades, the increasing vulnerability of floodplains is linked to societal changes such as population density growth, land use changes, water use patterns, among other factors. Land morphology directly influences surface water flow, transport of sediments, soil genesis, local climate and vegetation distribution. Therefore, the land morphology, the land used and management directly influences flood risks genesis. However, attention is not always given to the underlying geomorphological and ecological processes that influence the dynamic of rivers and their floodplains...
February 16, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28222304/fabrication-of-novel-visible-light-driven-agi-g-c3n4-composites-with-enhanced-visible-light-photocatalytic-activity-for-diclofenac-degradation
#2
Wei Zhang, Li Zhou, Jun Shi, Huiping Deng
A visible-light-driven heterostructured AgI/g-C3N4 was prepared by a deposition-precipitation method. The composition, structure, morphology, and optical properties of the photocatalyst were characterized by Brunauer-Emmett-Teller method (BET), X-ray powder diffraction (XRD), Fourier transform-infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), transmission electron microscope (TEM), scanning electron microscope (SEM), UV-vis diffused reflectance spectroscopy (DRS), photoluminescence spectroscopy (PL), photocurrent, and electrochemical impedance spectroscopy (EIS), respectively...
February 14, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28222099/morphological-study-of-tooth-development-in-podoplanin-deficient-mice
#3
Kenyo Takara, Naoki Maruo, Kyoko Oka, Chiaki Kaji, Yuji Hatakeyama, Naruhiko Sawa, Yukinari Kato, Junro Yamashita, Hiroshi Kojima, Yoshihiko Sawa
Podoplanin is a mucin-type highly O-glycosylated glycoprotein identified in several somatyic cells: podocytes, alveolar epithelial cells, lymphatic endothelial cells, lymph node stromal fibroblastic reticular cells, osteocytes, odontoblasts, mesothelial cells, glia cells, and others. It has been reported that podoplanin-RhoA interaction induces cytoskeleton relaxation and cell process stretching in fibroblastic cells and osteocytes, and that podoplanin plays a critical role in type I alveolar cell differentiation...
2017: PloS One
https://www.readbyqxmd.com/read/28221919/variation-in-campylobacter-multilocus-sequence-typing-subtypes-from-chickens-as-detected-on-three-plating-media
#4
M E Berrang, S R Ladely, R J Meinersmann, J E Line, B B Oakley, N A Cox
The objective of this study was to compare subtypes of Campylobacter jejuni and Campylobacter coli detected on three selective Campylobacter plating media to determine whether each medium selected for different subtypes. Fifty ceca and 50 carcasses (representing 50 flocks) were collected from the evisceration line in a commercial broiler processing plant. Campylobacter was cultured and isolated from cecal contents and carcass rinses on Campy-Cefex, Campy Line, and RF Campylobacter jejuni/coli agars. When a positive result was obtained with all three media, one colony of the most prevalent morphology on each medium was selected for further analysis by full genome sequencing and multilocus sequence typing...
November 2016: Journal of Food Protection
https://www.readbyqxmd.com/read/28221812/intermicellar-interactions-and-the-viscoelasticity-of-surfactant-solutions-complementary-use-of-sans-and-saxs
#5
Viviane Lutz-Bueno, Marianne Liebi, Joachim Kohlbrecher, Peter Fischer
In ionic surfactant micelles, basic interactions among distinct parts of surfactant monomers, their counterion, and additives are fundamental to tune molecular self-assembly and enhance viscoelasticity. Here, we investigate the addition of sodium salicylate (NaSal) to hexa-decyltrimethyl ammonium chloride and bromide (CTAC and CTAB) and 1-hexa-decyl pyridinium chloride and bromide (CPyCl and CPyBr), which have distinct counterions and headgroup structures, but the same hydrophobic tail. Different contrasts are obtained from small-angle neutron scattering SANS, which probes differences between the nucleus of atoms, and X-rays SAXS, which probes differences in electron density...
February 21, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28221045/hierarchical-colloidal-polymeric-structure-from-surfactant-like-amphiphiles-in-selective-solvents
#6
Chenglin Wang, Shiying Ma, Yi Hu, Rong Wang
We investigated the self-assembly of surfactant-like amphiphile consisting of a hydrophilic head and a hydrophobic tail using dissipative particle dynamics method. By controlling the interaction parameter between the hydrophilic head and the solvent, the length of hydrophobic tail, the size of hydrophilic head, and the polymer concentration, we found seven self-assembled morphologies, including sphere-like micelle, pomegranate-like micelle, hierarchical colloidal polymeric structure, pomegranate-like columnar structure, branched hybrid structure, disk-like micelle, and vesicle...
February 21, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28221029/highly-efficient-and-thermally-stable-k3alf6-mn4-as-a-red-phosphor-for-ultra-high-performance-warm-white-leds
#7
Enhai Song, Jianqing Wang, Jiahao Shi, Tingting Deng, Shi Ye, Mingying Peng, Jing Wang, Lothar Wondraczek, Qinyuan Zhang
Following pioneering work, solution-processable Mn4+-activated fluoride pigments, such as A2BF6 (A = Na, K, Rb, Cs; A2 = Ba, Zn; B = Si, Ge, Ti, Zr, Sn), have attracted considerable attention as highly promising red phosphors for warm white light emitting diodes (W-LEDs). To date, these fluoride pigments have been synthesized via traditional chemical routes with HF-solution. However, in addition to the possible dangers of hypertoxic HF, the uncontrolled precipitation of fluorides and the extensive processing steps produce large morphological variations, resulting in a wide variation in the LED performance of the resulting devices, which hampers their prospects for practical applications...
February 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28221023/polymorph-dependent-electrogenerated-chemiluminescence-of-low-dimensional-organic-semiconductor-structures-for-sensing
#8
Jianmin Gu, Yahui Gao, Jingxiao Wu, Qing Li, Aixue Li, Wei Zhang, Haiyun Dong, Bin Wen, Faming Gao, Yong Sheng Zhao
A sensitive electrogenerated chemiluminescence (ECL) sensor with organic semiconductor as active materials for detecting trace amounts of molecules have been highly desired. However, the crystal structure responses of the ECL properties of the organic semiconductor materials, that is structure-property relationship, is not clear, which limits the development of the sensitive ECL sensors. Herein, for the first time, we reported a novel concept for molecular stacking arrangement dependent electrogenerated chemiluminescence properties of organic semiconductor rubrene microstructures...
February 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28220393/common-and-distinct-regulation-of-human-and-mouse-brown-and-beige-adipose-tissues-a-promising-therapeutic-target-for-obesity
#9
REVIEW
Xuejiao Liu, Christopher Cervantes, Feng Liu
Obesity, which underlies various metabolic and cardiovascular diseases, is a growing public health challenge for which established therapies are inadequate. Given the current obesity epidemic, there is a pressing need for more novel therapeutic strategies that will help adult individuals to manage their weight. One promising therapeutic intervention for reducing obesity is to enhance energy expenditure. Investigations into human brown fat and the recently discovered beige/brite fat have galvanized intense research efforts during the past decade because of their pivotal roles in energy dissipation...
February 20, 2017: Protein & Cell
https://www.readbyqxmd.com/read/28219727/economic-botany-collections-a-source-of-material-evidence-for-exploring-historical-changes-in-chinese-medicinal-materials
#10
Eric Brand, Christine Leon, Mark Nesbitt, Ping Guo, Ran Huang, Hubiao Chen, Li Liang, Zhongzhen Zhao
ETHNOPHARMACOLOGICAL RELEVANCE: Many Chinese medicinal materials (CMMs) have changed over centuries of use, particularly in terms of their botanical identity and processing methods. In some cases, these changes have important implications for safety and efficacy in modern clinical practice. As most previous research has focused on clarifying the evolution of CMMs by analyzing traditional Chinese materia medica ("bencao") literature, assessments of historical collections are needed to validate these conclusions with material evidence...
February 17, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28219715/metabolic-syndrome-causes-rec-ognition-memory-impairments-and-reduced-the-hippocampal-neuronal-plasticity-in-rats
#11
Samuel Treviño, Rubén A Vázquez-Roque, Gustavo López-López, Claudia Perez-Cruz, Carolina Moran, Anhabella Handal-Silva, Enrique González-Vergara, Gonzalo Flores, Jorge Guevara, Alfonso Díaz
Metabolic syndrome (MS) is a serious public health problem, which can promote neuronal alterations in cognitive regions related to memory processes and learning, such as the hippocampus. However, up to now there is no information of a regional segregation of this damage. In this study, we evaluate the MS effect on the neuronal morphology of the hippocampus by a regional segregation approach. Our results demonstrate that 90days of a high-calorie diet altered metabolic energy markers and caused memory impairments, as evaluated by the recognition of novel objects test (NORT)...
February 17, 2017: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/28219451/quantitative-morphological-analysis-of-2d-images-of-complex-shaped-branching-biological-growth-forms-the-example-of-branching-thalli-of-liverworts
#12
Pirom Konglerd, Catherine Reeb, Fredrik Jansson, Jaap A Kaandorp
BACKGROUND: Many organisms such as plants can be characterized as complex-shaped branching forms. The morphological quantification of the forms is a support for a number of areas such as the effects of environmental factors and species discrimination. To date, there is no software package suitable for our dataset representing the forms. We therefore formulate methods for extracting morphological measurements from images of the forms. RESULTS: As a case study we analyze two-dimensional images of samples from four groups belonging to three species of thalloid liverworts, genus Riccardia...
February 20, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28219140/-effects-of-transient-exposure-to-high-glucose-on-biological-behaviors-of-human-dermal-microvascular-endothelial-cells
#13
L Qiao, H Z Yang, X C Li, X Q Huang, B Yuan, Z D Zhou
Objective: To observe the effects of transient exposure to high glucose on biological behaviors of human dermal microvascular endothelial cells cultured in vitro. Methods: The dividing method and treatment of cells for the detection of all indexes in this study were as follows. Human dermal microvascular endothelial cells of the 4th passage were divided into 3 groups according to the random number table, with 12 wells in each group. Cells in control group (C) were cultured with complete culture solution containing 5 mmol/L D-glucose for 7 d...
February 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28219033/using-a-facile-experimental-manipulation-to-fabricate-and-tune-a-polyoxometalate-cholesterol-hybrid-material
#14
Hai-Kuan Yang, Ling-Ling Liu, Xin Yuan, Shi-Mei Wu
In this work, we describe how the toluene and DMF addition order influences the gelation behaviors and supramolecular structures of a self-assembled polyoxometalate-cholesterol hybrid. Morphological studies of the dried xerogel samples were performed with transmission electron microscopy and atomic force microscopy, revealing that the order of solvent addition directed the self-assembly of polyoxometalate-cholesterol hybrids toward the formation of organogels with different supramolecular structures. In the case of organogel 1, which was formed by adding DMF dropwise into a hybrid-containing toluene solution, the characteristic organogel morphology contained a three-dimensional fibrous network structure...
February 14, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28218971/growth-factors-and-hormones-pro-peptides-the-unexpected-adventures-of-the-bdnf-prodomain-pbdnf
#15
REVIEW
Juan Pablo Zanin, Nicolás Unsain, Agustin Anastasia
Most growth factors and hormones are synthesized as pre-pro-proteins which are processed to the biologically active mature protein. The pre- and prodomains are cleaved from the precursor protein in the secretory pathway or, in some cases, extracellularly. The canonical functions of these prodomains are to assist in folding and stabilization of the mature domain, to direct intra and extracellular localization, to facilitate storage, and to regulate bioavailability of their mature counterpart. Recently, exciting evidence has revealed that prodomains of certain growth factors, after cleaved from the precursor pro-protein, can act as independent active signaling molecules...
February 20, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28218829/kinetics-of-polymer-fullerene-phase-separation-during-solvent-annealing-studied-by-table-top-x-ray-scattering
#16
Karol Vegso, Peter Siffalovic, Matej Jergel, Peter Nadazdy, Vojtech Nádaždy, Eva Majkova
Solvent annealing is an efficient way of phase separation in polymer-fullerene blends to optimize bulk heterojunction morphology of active layer in polymer solar cells. To track the process in real time across all relevant stages of solvent evaporation, laboratory-based in-situ small- and wide-angle X-ray scattering measurements were applied simultaneously to a model P3HT:PCBM blend dissolved in dichlorobenzene. The PCBM molecule agglomeration starts at ≈7 wt% concentration of solid content of the blend in solvent...
February 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28218809/luminescent-bis-cyclometalated-gold-iii-complexes-with-alkynyl-ligands-of-hexaphenylbenzene-and-hexabenzocoronene-derivatives-and-their-supramolecular-assembly-study
#17
King-Chin Yim, Vonika Ka-Man Au, Keith Man-Chung Wong, Vivian W W Yam
A series of luminescent bis-cyclometalated gold(III) complexes with different nuclearities and various alkynyl ligands derived from hexaphenylbenzene (HPB) and hexabenzocoronene (HBC) has been synthesized. The energies of the low-energy metal-perturbed IL π-π*(R-C^N^C) absorptions of the HPB-alkynyl gold(III) complexes have been fine-tuned by attaching various substituent groups to the bis-cyclometalating ligands. Similarly, the metal-perturbed ³IL [π→π*(R-C^N^C)] emissions of the complexes are found to show energy shifts according to the electronic nature of the bis-cyclometalating ligands...
February 20, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28218510/exceptional-dewetting-of-organic-semiconductor-films-the-case-of-dinaphthothienothiophene-dntt-at-dielectric-interfaces
#18
Tobias Breuer, Andrea Karthäuser, Hagen W Klemm, Francesca Genuzio, Gina Peschel, Alexander Fuhrich, Thomas Schmidt, Gregor Witte
The novel organic semiconductor dinaphthothienothiophene (DNTT) has gained considerable interest because its large charge carrier mobility and distinct chemical robustness enable the fabrication of organic field effect transistors with remarkable long-term stability under ambient conditions. Structural aspects of DNTT films and their control, however, remain so far largely unexplored. Interestingly, the crystalline structure of DNTT is rather similar to that of the prototypical pentacene, for which the molecular orientation in crystalline thin films can be controlled by means of interface-mediated growth...
February 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28218488/controlled-segmentation-of-metal-nanowire-array-by-block-copolymer-lithography-and-reversible-ion-loading
#19
Jeong Ho Mun, Seung Keun Cha, Ye Chan Kim, Taeyeong Yun, Young Joo Choi, Hyeong Min Jin, Jae Eun Lee, Hyun Uk Jeon, So Youn Kim, Sang Ouk Kim
Spatial arrangement of 1D nanomaterials may offer enormous opportunities for advanced electronics and photonics. Moreover, morphological complexity and chemical diversity in the nanoscale components may lead to unique properties that are hardly anticipated in randomly distributed homogeneous nanostructures. Here, controlled chemical segmentation of metal nanowire arrays using block copolymer lithography and subsequent reversible metal ion loading are demonstrated. To impose chemical heterogeneity in the nanowires generated by block copolymer lithography, reversible ion loading method highly specific for one particular polymer block is introduced...
February 20, 2017: Small
https://www.readbyqxmd.com/read/28218485/mechanically-milled-irregular-zinc-nanoparticles-for-printable-bioresorbable-electronics
#20
Bikram K Mahajan, Xiaowei Yu, Wan Shou, Heng Pan, Xian Huang
Bioresorbable electronics is predominantly realized by complex and time-consuming anhydrous fabrication processes. New technology explores printable methods using inks containing micro- or nano-bioresorbable particles (e.g., Zn and Mg). However, these particles have seldom been obtained in the context of bioresorbable electronics using cheap, reliable, and effective approaches with limited study on properties essential to printable electronics. Here, irregular nanocrystalline Zn with controllable sizes and optimized electrical performance is obtained through ball milling approach using polyvinylpyrrolidone (PVP) as a process control agent to stabilize Zn particles and prevent cold welding...
February 20, 2017: Small
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