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https://www.readbyqxmd.com/read/28706311/first-report-of-the-fig-cyst-nematode-heterodera-fici-kirjanova-on-fig-tree-ficus-carica-in-ontario-canada
#1
Fengcheng Sun, Neil Henry, Qing Yu
Although fig trees are a popular ornamental fruit tree in subtropical regions, some hardy species, such as Ficus carica, have been grown in the west coast of British Columbia and southern Ontario in Canada. The fig cyst nematode, Heterodera fici Kirjanova, is a pest on fig plants, and the heavy infestation can cause retarded growth and yellowing of leaves (Maqbool et al., 1987). In the spring of 2016, a sample of rhizosphere from a potted fig (F. carica) seedling was submitted to the Nematology Laboratory, Canadian Food Inspection Agency...
June 2017: Journal of Nematology
https://www.readbyqxmd.com/read/28703255/contorted-polycyclic-aromatic-hydrocarbons-with-cove-regions-and-zig-zag-edges
#2
Yulan Chen, Tomasz Marszalek, Torsten Fritz, Martin Baumgarten, Manfred Wagner, Wojciech Pisula, Long Chen, Klaus Müllen
A series of tetrapyrene-fused benzocoronenes was synthesized by a "bottom-up" approach, which offers a facile access to extended polycyclic aromatic hydrocarbons with concave π-surfaces, cove regions and zig-zag edges.
July 13, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28694353/a-centrosomal-protein-for20-regulates-microtubule-assembly-dynamics-and-plays-a-role-in-cell-migration
#3
Shalini Srivastava, Dulal Panda
Here, we report that a centrosomal protein FOR20 (also named as C16orf63, FLJ31153 or PHSECRG2) can regulate the assembly and stability of microtubules. Both FOR20 IgG antibody and GST-tagged FOR20 could precipitate tubulin from HeLa cell extract indicating a possible interaction between FOR20 and tubulin. FOR20 was also detected in goat brain tissue extract and it cycled with microtubule-associated proteins. Further, FOR20 bound to purified tubulin and inhibited the assembly of tubulin in vitro. The over-expression of FOR20 depolymerized interphase microtubules and the depletion of FOR20 prevented nocodazole-induced depolymerization of microtubules in HeLa cells...
July 10, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28670104/self-consistent-gradient-flow-for-shape-optimization
#4
D Kraft
We present a model for image segmentation and describe a gradient-descent method for level-set based shape optimization. It is commonly known that gradient-descent methods converge slowly due to zig-zag movement. This can also be observed for our problem, especially when sharp edges are present in the image. We interpret this in our specific context to gain a better understanding of the involved difficulties. One way to overcome slow convergence is the use of second-order methods. For our situation, they require derivatives of the potentially noisy image data and are thus undesirable...
July 4, 2017: Optimization Methods & Software
https://www.readbyqxmd.com/read/28661158/tailoring-the-structure-of-58-electron-gold-nanoclusters-au103s2-s-nap-41-and-its-implications
#5
Tatsuya Higaki, Chong Liu, Meng Zhou, Tian-Yi Luo, Nathaniel L Rosi, Rongchao Jin
We report the synthesis and crystal structure determination of a gold nanocluster with 103 gold atoms protected by 2 sulfidos and 41 thiolates (i.e., 2-naphthalenethiolates, S-Nap), denoted as Au103S2(S-Nap)41. The crystallographic analysis reveals that the thiolate ligands on the nanocluster form local tetramers by intracluster interactions of C-H···π and π···π stacking. The herringbone pattern formation via intercluster interactions is also observed, which leads to a linearly connected zigzag pattern in the single crystal...
July 11, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28654278/self-assembly-of-inas-nanostructures-on-the-sidewalls-of-gaas-nanowires-directed-by-a-bi-surfactant
#6
Ryan B Lewis, Pierre Corfdir, Jesús Herranz, Hanno Küpers, Uwe Jahn, Oliver Brandt, Lutz Geelhaar
Surface energies play a dominant role in the self-assembly of three-dimensional (3D) nanostructures. In this Letter, we show that using surfactants to modify surface energies can provide a means to externally control nanostructure self-assembly, enabling the synthesis of novel hierarchical nanostructures. We explore Bi as a surfactant in the growth of InAs on the {11̅0} sidewall facets of GaAs nanowires. The presence of surface Bi induces the formation of InAs 3D islands by a process resembling the Stranski-Krastanov mechanism, which does not occur in the absence of Bi on these surfaces...
June 29, 2017: Nano Letters
https://www.readbyqxmd.com/read/28621798/the-relationship-of-serum-adipokines-with-malnutrition-inflammation-score-in-hemodialysis
#7
Elham Alipoor, Ahmad Esmaillzadeh, Mitra Mahdavi-Mazdeh, Mehdi Yaseri, Narges Sadat Zahed, Mohammad Javad Hosseinzadeh-Attar
BACKGROUND: Protein-energy wasting is a prevalent disorder in hemodialysis. Zinc-α2-glycoprotein (ZAG) and adipose triglyceride lipase (ATGL) are novel adipokines with recognized lipolytic effects and proposed role in metabolic homeostasis. This study was conducted to investigate the association of ZAG and ATGL concentrations with malnutrition inflammation score (MIS) and metabolic profile of patients with hemodialysis. MATERIALS AND METHODS: Eighty-eight patients under regular hemodialysis divided based on MIS to normal to mild wasting (NMW; n=35) or moderate wasting (MW; n=53) groups...
June 16, 2017: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28618229/staggered-linear-assembly-of-spherical-cap-colloids
#8
Yogesh Shelke, Manigandan Sabapathy, Ethayaraja Mani
Linear assembly of colloidal particles is of fundamental interest in visualizing polymer dynamics and living organisms. We have developed a fluid-fluid interface-based method to synthesize spherical-cap polymeric latex particles. These particles are shown to spontaneously self-assemble in zigzag arrangement. The linear assembly is induced due to the shape anisotropy (one side is curved and the other side is nearly flat) and heterogeneous charge distribution on the particle surfaces. The necessities of these conditions are justified within the framework of DLVO theory...
June 27, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28615706/channel-branching-and-zigzagging-in-negative-cloud-to-ground-lightning
#9
Rubin Jiang, Xiushu Qie, Hongbo Zhang, Mingyuan Liu, Zhuling Sun, Gaopeng Lu, Zhichao Wang, Yu Wang
A fundamental question in lightning flash concerns why the discharge channel propagates in a zig-zag manner and produces extensive branches. Here we report the optical observation of two negative cloud-to-ground lightning discharges with very high temporal resolution of 180,000 frames per second, which shows in detail the dependence of channel branching and tortuous behavior on the stepping process of the leader development. It is found that the clustered space leaders formed in parallel ahead of the channel tip during an individual step process...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28576733/neuronal-zinc-%C3%AE-2-glycoprotein-is-decreased-in-temporal-lobe-epilepsy-in-patients-and-rats
#10
Ying Liu, Teng Wang, Xi Liu, Xin Wei, Tao Xu, Maojia Yin, Xueying Ding, Lijuan Mo, Lifen Chen
Zinc-α2-glycoprotein (ZAG) is a 42-kDa protein encoded by the AZGP1 gene that is known as a lipid mobilizing factor and is highly homologous to major histocompatibility complex class I family molecules. Recently, transcriptomic research has shown that AZGP1 expression is reduced in the brain tissue of epilepsy patients. However, the cellular distribution and biological role of ZAG in the brain and epilepsy are unclear. Patients with refractory temporal lobe epilepsy (TLE) and brain trauma were included in this study, and pentylenetetrazole (PTZ)-kindled rats were also used...
May 31, 2017: Neuroscience
https://www.readbyqxmd.com/read/28562544/endoscopic-management-of-massive-mercury-ingestion-a-case-report
#11
Levente Zag, Gábor Berkes, Irma F Takács, Attila Szepes, István Szabó
RATIONALE: Ingestion of a massive amount of metallic mercury was thought to be harmless until the last century. After that, in a number of cases, mercury ingestion has been associated with appendicitis, impaired liver function, memory deficits, aspiration leading to pneumonitis and acute renal failure. Treatment includes gastric lavage, giving laxatives and chelating agents, but rapid removal of metallic mercury with gastroscopy has not been used. PATIENT CONCERNS: An 18-year-old man was admitted to our emergency department after drinking 1000 g of metallic mercury as a suicide attempt...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28559427/effects-of-altered-sagittal-trunk-orientation-on-kinetic-pattern-in-able-bodied-walking-on-uneven-ground
#12
Soran Aminiaghdam, Christian Rode
Studies of disturbed human locomotion often focus on the dynamics of the gait when either posture, movement or surface is perturbed. Yet, the interaction effects of variation of trunk posture and ground level on kinetic behaviour of able-bodied gait have not been explored. For 12 participants we investigated the kinetic behaviour, as well as velocity and contact time, across four steps including an unperturbed step on level ground, pre-perturbation, perturbation (10-cm drop) and post-perturbation steps while walking with normal speed with four postures: regular erect, with 30°, 50° and maximal sagittal trunk flexion (70°)...
July 15, 2017: Biology Open
https://www.readbyqxmd.com/read/28550764/mechanical-properties-of-crossed-lamellar-structures-in-biological-shells-a-review
#13
REVIEW
X W Li, H M Ji, W Yang, G P Zhang, D L Chen
The self-fabrication of materials in nature offers an alternate and powerful solution towards the grand challenge of designing advanced structural materials, where strength and toughness are always mutually exclusive. Crossed-lamellar structures are the most common microstructures in mollusks that are composed of aragonites and a small amount of organic materials. Such a distinctive composite structure has a fracture toughness being much higher than that of pure carbonate mineral. These structures exhibiting complex hierarchical microarchitectures that span several sub-level lamellae from microscale down to nanoscale, can be grouped into two types, i...
May 17, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28549690/albumin-binding-domain-from-streptococcus-zooepidemicus-protein-zag-as-a-novel-strategy-to-improve-the-half-life-of-therapeutic-proteins
#14
Cátia Cantante, Sara Lourenço, Maurício Morais, João Leandro, Lurdes Gano, Nuno Silva, Paula Leandro, Mónica Serrano, Adriano O Henriques, Ana Andre, Catarina Cunha-Santos, Carlos Fontes, João D G Correia, Frederico Aires-da-Silva, Joao Goncalves
Recombinant antibody fragments belong to the promising class of biopharmaceuticals with high potential for future therapeutic applications. However, due to their small size they are rapidly cleared from circulation. Binding to serum proteins can be an effective approach to improve pharmacokinetic properties of short half-life molecules. Herein, we have investigated the Zag albumin-binding domain (ABD) derived from Streptococcus zooepidemicus as a novel strategy to improve the pharmacokinetic properties of therapeutic molecules...
May 24, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/28520181/encapsulation-and-polymerization-of-white-phosphorus-inside-single-wall-carbon-nanotubes
#15
Martin Hart, Edward R White, Ji Chen, Catriona M McGilvery, Chris J Pickard, Angelos Michaelides, Andrea Sella, Milo S P Shaffer, Christoph G Salzmann
Elemental phosphorus displays an impressive number of allotropes with highly diverse chemical and physical properties. White phosphorus has now been filled into single-wall carbon nanotubes (SWCNTs) from the liquid and thereby stabilized against the highly exothermic reaction with atmospheric oxygen. The encapsulated tetraphosphorus molecules were visualized with transmission electron microscopy, but found to convert readily into chain structures inside the SWCNT "nanoreactors". The energies of the possible chain structures were determined computationally, highlighting a delicate balance between the extent of polymerization and the SWCNT diameter...
May 18, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28474608/compressive-strain-induced-enhancement-in-thermoelectric-power-factor-in-monolayer-mos2-nanosheet
#16
Dimple, Nityasagar Jena, Abir De Sarkar
Strain and temperature induced tunability in the thermoelectric properties in monolayer MoS2 (ML-MoS2) has been demonstrated using density functional theory coupled to semi-classical Boltzmann transport theory. Compressive strain, in general and uniaxial compressive strain (along the zig-zag direction), in particular, is found to be most effective in enhancing the thermoelectric power factor, owing to the higher electronic mobility and its sensitivity to lattice compression along this direction. Variation in the Seebeck coefficient and electronic band gap with strain is found to follow the Goldsmid-Sharp relation...
June 7, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28441236/the-new-mirus-system-for-short-term-sedation-in-postsurgical-icu-patients
#17
Stefano Romagnoli, Cosimo Chelazzi, Gianluca Villa, Giovanni Zagli, Francesco Benvenuti, Paola Mancinelli, Giulio Arcangeli, Stefano Dugheri, Alessandro Bonari, Lorenzo Tofani, Andrea Belardinelli, A Raffaele De Gaudio
OBJECTIVES: To evaluate the feasibility and safety of the MIRUS system (Pall International, Sarl, Fribourg, Switzerland) for sedation with sevoflurane for postsurgical ICU patients and to evaluate atmospheric pollution during sedation. DESIGN: Prospective interventional study. SETTING: Surgical ICU. February 2016 to December 2016. PATIENTS: Postsurgical patients requiring ICU admission, mechanical ventilation, and sedation...
April 22, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28440767/zinc-alpha-2-glycoprotein-is-overproduced-in-cushing-s-syndrome
#18
Xavier Escoté, Gloria B Aranda, Mireia Mora, Gregori Casals, Joaquim Enseñat, Oscar Vidal, Yaiza Esteban, Irene Halperin, Felicia A Hanzu
INTRODUCTION: Cushing syndrome (CS), an endogenous hypercortisolemic condition with increased cardiometabolic morbidity, leads to development of abdominal obesity, insulin resistance, diabetes and proatherogenic dyslipidemia. Zinc alpha-2 glycoprotein (ZAG) is a recently characterized lipolytic adipokine implicated in regulation of adipose tissue metabolism and fat distribution. In vitro and animal studies suggest that glucocorticoids interact with ZAG secretion and action. To assess the relationship between ZAG and glucocorticoids in a human model of hypercortisolism, circulating ZAG levels were tested in patients with CS and its counterpart controls...
January 2017: Endocrinología, diabetes y nutrición
https://www.readbyqxmd.com/read/28425473/2d-dige-as-a-strategy-to-identify-serum-biomarkers-in-mexican-patients-with-type-2-diabetes-with-different-body-mass-index
#19
Erik E Gómez-Cardona, Eric E Hernández-Domínguez, Aída J Velarde-Salcedo, Alberto-Barrera- Pacheco, Agustín Diaz-Gois, Antonio De León-Rodríguez, Ana P Barba de la Rosa
Obesity and type 2 diabetes(T2D) are the most prevalent and serious metabolic diseases affecting people worldwide. However racial and ethnic disparities seems to be a risk factor for their development. Mexico has been named as one of the largest populations with the highest prevalence of diabetes and obesity. The aim of this study was to identify novel T2D-associated proteins in Mexican patients. Blood samples were collected from 62 Mexican patients with T2D and they were grouped according to their body mass index(BMI)...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28370109/studies-on-effect-of-temperature-and-time-on-textural-and-rheological-properties-of-starch-isolated-from-traditional-rice-cultivars-of-kashmir-india
#20
Farhan M Bhat, Charanjit S Riar
In the present study, the effect of storage temperature and time on the textural and rheological properties of starch gels from seven different rice cultivars having higher amylose content than the hybrid rice varieties were evaluated. Water solubility and swelling power increased with every 10C increase in temperature due to granule swelling and solubilization of starch wherein the maximum solubility was found in starch of Koshkari rice cultivar (0.721 to 13.50) and swelling power in starch of Zag rice cultivar (3...
April 2017: Journal of Texture Studies
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