keyword
MENU ▼
Read by QxMD icon Read
search

repellent

keyword
https://www.readbyqxmd.com/read/28636352/prevention-of-marine-biofouling-using-the-natural-allelopathic-compound-batatasin-iii-and-synthetic-analogues
#1
Lindon W K Moodie, Rozenn Trepos, Gunnar Cervin, Kari Anne Bråthen, Bente Lindgård, Rigmor Reiersen, Patrick Cahill, Henrik Pavia, Claire Hellio, Johan Svenson
The current study reports the first comprehensive evaluation of a class of allelopathic terrestrial natural products as antifoulants in a marine setting. To investigate the antifouling potential of the natural dihydrostilbene scaffold, a library of 22 synthetic dihydrostilbenes with varying substitution patterns, many of which occur naturally in terrestrial plants, were prepared and assessed for their antifouling capacity. The compounds were evaluated in an extensive screen against 16 fouling marine organisms...
June 21, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28634803/a-method-for-reducing-environmental-pollution-by-using-essential-oils-in-rodent-pest-management-program
#2
Goran Jokić, Tanja Blažić, Rada Đurović-Pejčev, Tijana Đorđević, Suzana Đedović, Marina Vukša
Strong-smelling plant extracts, such as essential oils, have a variety of feeding effects on mammals. Considering current concerns over long-term health issues and environmental effects of chemicals, plant-based products with repellent or antifungal activities may represent good solutions for improvement of rodent pest control programs. The present study was therefore focused on examining the effects of bergamot, lavender, and thyme essential oils as additional bait components on daily intakes of cereal-based baits by wild house mice...
June 21, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28630920/bioinspired-shape-memory-graphene-film-with-tunable-wettability
#3
Jie Wang, Lingyu Sun, Minhan Zou, Wei Gao, Cihui Liu, Luoran Shang, Zhongze Gu, Yuanjin Zhao
Functional materials with specific surface wettability play an important role in a wide variety of areas. Inspired by nature's Nepenthes pitcher plant, we present a novel slippery film with tunable wettability based on a shape-memory graphene sponge. The porous graphene sponge coated with shape-memory polymer was used to lock in inert lubricants and construct slippery surfaces to repel different liquids. The superelasticity and high strength, together with good electrical conductivity, of the graphene sponge imparted the graphene/polymer hybrid films with fast recoverable shape-memory properties...
June 2017: Science Advances
https://www.readbyqxmd.com/read/28629022/a-novel-functionalization-method-for-carbon-nanotubes-to-repel-ox-ldl-in-treatments-after-stent-placement
#4
C I Santana, L M Hoyos, J F Pérez, J Bustamante, A G García
Carbon nanotubes (CNT) can be chemically modified by doping or functionalization to change the chemical and surface properties. These characteristic makes to CNT candidates for multiple applications including medical field in cardiovascular area. A novel method to CNT functionalization by formation of two compounds: α-bromoacid and the organic compound 2-(methacryloyloxy) ethyl phosphorylcholine (MPC), will be discussed in this article. According to results, CNT are suggested like candidates to repel oxidized low-density lipoproteins (ox-LDL) to prevent restenosis...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28628328/ph-switchable-interaction-of-a-carboxybetaine-ester-based-sam-with-dna-and-gold-nanoparticles
#5
Jaroslav Filip, Anton Popelka, Tomas Bertok, Alena Holazova, Josef Osicka, Jozef Kollar, Marketa Ilcikova, Jan Tkac, Peter Kasak
We describe a self-assembled monolayer (SAM) on a gold surface with carboxybetaine ester functionality to control the interaction between DNA and gold nanoparticles via pH. The negatively charged phosphate backbone of DNA interacts with and adsorbs to the positively charged carboxybetaine esters on the SAM. DNA release can be achieved by the hydrolysis of carboxybetaine ester (CBE) to a zwitterionic carboxybetaine state. Furthermore, the adsorption of negatively charged citrate-capped gold nanoparticles to a SAM-modified plain gold surface can be controlled by pH...
June 19, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28626536/school-based-health-education-in-yucatan-mexico-about-the-chikungunya-virus-and-mosquito-illness-prevention
#6
Monica Seungah Choo, R Alexander Blackwood
The Chikungunya virus (CHIKV) has been rapidly spreading throughout Latin America, utilizing pre-existing vectors to infiltrate the immunologically naïve populations. With the current rise of the Zika Virus, there is an urgent need for more rigorous vector control efforts to prevent further Zika breakout. We designed a school-based education module on CHIKV and mosquito prevention and presented it to the local students of ages of 6-18 in a rural town called Sudzal in Yucatan, Mexico. We distributed questionnaires before and after education to test the students' knowledge of CHIKV and mosquito prevention...
May 31, 2017: Infectious Disease Reports
https://www.readbyqxmd.com/read/28626354/exact-permutation-based-sign-tests-for-clustered-binary-data-via-weighted-and-unweighted-test-statistics
#7
Janie McDonald, Patrick D Gerard, Christopher S McMahan, William R Schucany
Clustered binary data occur frequently in many application areas. When analyzing data of this form, ignoring key features, such as the intracluster correlation, may lead to inaccurate inference; e.g., inflated Type I error rates. For clustered binary data, Gerard and Schucany (2007) proposed an exact test for examining whether the marginal probability of a response differs from 0.5, which is the null hypothesis considered in the classic sign test. This new test maintains the specified Type I error rate and has more power, when compared to both the classic sign and permutation tests...
December 2016: Journal of Agricultural, Biological, and Environmental Statistics
https://www.readbyqxmd.com/read/28624088/nootkatone-encapsulation-by-cyclodextrins-effect-on-water-solubility-and-photostability
#8
Miriana Kfoury, David Landy, Steven Ruellan, Lizette Auezova, Hélène Greige-Gerges, Sophie Fourmentin
Nootkatone (NO) is a sesquiterpenoid volatile flavor, used in foods, cosmetics and pharmaceuticals, possessing also insect repellent activity. Its application is limited because of its low aqueous solubility and stability; this could be resolved by encapsulation in cyclodextrins (CDs). This study evaluated the encapsulation of NO by CDs using phase solubility studies, Isothermal Titration Calorimetry, Nuclear Magnetic Resonance spectroscopy and molecular modeling. Solid CD/NO inclusion complex was prepared and characterized for encapsulation efficiency and loading capacity using UV-Visible...
December 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28622360/the-seroprevalence-of-west-nile-virus-in-israel-a-nationwide-cross-sectional-study
#9
Ravit Bassal, Tamy Shohat, Zalman Kaufman, Batya Mannasse, Eilat Shinar, Doron Amichay, Mira Barak, Anat Ben-Dor, Adina Bar Haim, Daniel Cohen, Ella Mendelson, Yaniv Lustig
West Nile Virus (WNV) is endemic in Israel, affecting yearly 40-160 individuals. Israel is located on a central migratory path between Africa and Eurasia and most West Nile Fever (WNF) cases reported in recent years were among residents of the coastal plain. The aim of the study was to evaluate the seroprevalence of WNV among the Israeli population and to assess correlates for WNV infection. A cross-sectional nationwide serologic survey was conducted using 3,145 serum samples collected by the national Israeli serum bank during 2011-2014, representing all age and population groups in Israel...
2017: PloS One
https://www.readbyqxmd.com/read/28621931/tunable-surface-repellency-maintains-stemness-and-redox-capacity-of-human-mesenchymal-stem-cells
#10
Daniel A Balikov, Spencer William Crowder, Timothy C Boire, Jung Bok Lee, Mukesh K Gupta, Aidan M Fenix, Holley N Lewis, Caitlyn M Ambrose, Philip A Short, Chang-Soo Kim, Dylan T Burnette, Matthew A Reilly, N Sanjeeva Murthy, Mi-Lan Kang, Won Shik Kim, Hak-Joon Sung
Human bone marrow-derived mesenchymal stem cells (hMSCs) hold great promise for regenerative medicine due to their multipotent differentiation capacity and immunomodulatory capabilities. Substantial research has elucidated mechanisms by which extracellular cues regulate hMSC fate decisions, but considerably less work has addressed how material properties can be leveraged to maintain undifferentiated stem cells. Here, we show that synthetic culture substrates designed to exhibit moderate cell-repellency promote high stemness and low oxidative stress - two indicators of naïve, healthy stem cells - in commercial and patient-derived hMSCs...
June 16, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28621915/wounding-of-arabidopsis-leaves-induces-indole-3-carbinol-dependent-autophagy-in-roots-of-arabidopsis-thaliana
#11
Ella Katz, Daniel A Chamovitz
In cruciferous plants, insect attack or physical damage induce the synthesis of the glucosinolate breakdown product indole-3-carbinol, which plays a key role in the defense against attackers. Indole-3-carbinol also affects plant growth and development by acting as an auxin antagonist by binding to the TIR1 auxin receptor. Other potential functions of indole-3-carbinol and the underlying mechanisms in plant biology are unknown. Here we show that an indole-3-carbinol-dependent signal induces specific autophagy in root cells...
June 16, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28621730/hydronopylformamides-modification-of-the-naturally-occurring-compound-%C3%AE-pinene-to-produce-insect-repellent-candidates-against-blattella-germanica
#12
Shengliang Liao, Yan Liu, Hongyan Si, Zhuanquan Xiao, Guorong Fan, Shangxing Chen, Peng Wang, Zongde Wang
The development of a novel repellent plays an important role in the integrated control of Blattella germanica. A series of novel hydronopylformamides derivatives were synthesized from a naturally occurring compound (-)-β-pinene. The structures of these hydronopylformamides derivatives were characterized by Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance spectroscopy (¹H-NMR and (13)C-NMR), and electron impact mass spectrometry (EI-MS). Repellency of these hydronopylformamides derivatives against Blattella germanica was evaluated by the using petri dish arena method...
June 16, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28621421/roles-of-dscam-in-axonal-decussation-and-fasciculation-of-chick-spinal-interneurons
#13
Oksana Cohen, Lilach Vald, Masahito Yamagata, Joshua R Sanes, Avihu Klar
The ventral midline of the embryonic neural tube, the floor plate, has a profound role in guiding axons during embryonic development. Floor plate-derived guidance cues attract or repel axons, depending on the neuronal subtype and developmental stage. Netrin-1 and its receptor, Deleted in Colon Carcinoma (DCC), are the key constituents of commissurral axons guidance cues toward the floor plate. Recent studies have implicated Down Syndrome Cell Adhesion Molecule (Dscam) as an additional Netrin-1 receptor. In this study, we examined the role of Dscam in guiding defined spinal dorsal interneuron populations...
2017: International Journal of Developmental Biology
https://www.readbyqxmd.com/read/28609620/imparting-icephobicity-with-substrate-flexibility
#14
Thomas Vasileiou, Thomas M Schutzius, Dimos Poulikakos
Ice accumulation hinders the performance of, and poses safety threats for infrastructure both on the ground and in the air. Previously, rationally designed superhydrophobic surfaces have demonstrated some potential as a passive means to mitigate ice accretion; however, further studies on material solutions that reduce impalement and contact time for impacting supercooled droplets (high viscosity) and can also repel droplets that freeze during surface contact are urgently needed. Here we demonstrate the collaborative effect of substrate flexibility and surface micro/nanotexture on enhancing both icephobicity and the repellency of viscous droplets (typical of supercooled water)...
June 13, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28607353/robust-water-repellent-zno-nanorod-array-by-swift-heavy-ion-irradiation-effect-of-electronic-excitation-induced-local-chemical-state-modification
#15
Kugalur Shanmugam Ranjith, Lalitha Raveendran Nivedita, Kandasami Asokan, Satheesh Krishnamurthy, Ramanathaswamy Pandian, Mohammed Kamruddin, Devesh Kumar Avasthi, Ramasamy Thangavelu Rajendra Kumar
Tailoring the surface properties by varying the chemistry and roughness could be of interest for self-cleaning applications. We demonstrate the transformation of hydrophobic ZnO Nano rod (NR) array into superhydrophobic nature by changing the local chemical state and without altering the surface roughness by swift heavy ion (SHI) irradiation. The aligned ZnO NR arrays were irradiated using 150 MeV Ag ions with different fluences from 5E10 to 3E12 ions/cm(2). The observed static water contact angles of ZnO NRs samples were 103° ± 3°, 152° ± 4°,161° ± 3°, 164° ± 2°, 167° ± 2°,154 ± 3° and 151° ± 2° for the pristine, ion fluencies of 1E11, 3E11, 5E11, 7E11, 1E12 and 3E12 ions cm(-2), respectively...
June 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28605270/characteristics-of-acute-occupational-pesticide-exposures-in-texas-reported-to-poison-centers-2000-2015
#16
Amber Brooke Trueblood, Eva M Shipp
In the United States, there is limited literature on occupational pesticide exposures despite being associated with adverse health outcomes, including large states, such as Texas. The purpose of this paper is to characterize occupational pesticide poison center exposures in Texas. Descriptive statistics were used to describe exposures (e.g., exposure routes, type of pesticide, medical outcome, clinical effects, and temporal/seasonal patterns). From 2000 to 2015, there were 2,303 occupational pesticide poison center exposures...
June 12, 2017: Archives of Environmental & Occupational Health
https://www.readbyqxmd.com/read/28604698/well-defined-porous-membranes-for-robust-omniphobic-surfaces-via-microfluidic-emulsion-templating
#17
Pingan Zhu, Tiantian Kong, Xin Tang, Liqiu Wang
Durability is a long-standing challenge in designing liquid-repellent surfaces. A high-performance omniphobic surface must robustly repel liquids, while maintaining mechanical/chemical stability. However, liquid repellency and mechanical durability are generally mutually exclusive properties for many omniphobic surfaces-improving one performance inevitably results in decreased performance in another. Here we report well-defined porous membranes for durable omniphobic surfaces inspired by the springtail cuticle...
June 12, 2017: Nature Communications
https://www.readbyqxmd.com/read/28604017/religion-repulsion-and-reaction-formation-transforming-repellent-attractions-and-repulsions
#18
Dov Cohen, Emily Kim, Nathan W Hudson
Protestants were more likely than non-Protestants to demonstrate phenomena consistent with the use of reaction formation. Lab experiments showed that when manipulations were designed to produce taboo attractions (to unconventional sexual practices), Protestants instead showed greater repulsion. When implicitly conditioned to produce taboo repulsions (to African Americans), Protestants instead showed greater attraction. Supportive evidence from other studies came from clinicians' judgments, defense mechanism inventories, and a survey of respondent attitudes...
June 12, 2017: Journal of Personality and Social Psychology
https://www.readbyqxmd.com/read/28603993/ammonia-assisted-wet-chemical-synthesis-of-zno-microrod-arrays-on-substrates-for-microdroplet-transfer
#19
Jian Zhu, Da Deng
It is still a challenging task to facilely grow microscale arrays on arbitrary substrates at low temperature conditions in solutions. Here, we have successfully formed ZnO microrod arrays on various substrates, including glass, gold coated glass, silicon wafer, and Teflon, by a single-step wet-chemical synthesis approach. We employ ammonia as the multifunctional reactant to modify the surface properties of the substrates and to regulate the pH of the reaction environment. Compared to other methods, no preloaded additives or seeds are required...
June 12, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28601115/modeling-change-in-project-duration-and-completion-scheduling-dynamics-of-nasa-s-exploration-flight-test-1-eft-1-activities
#20
Travis J Wiltshire, Jonathan E Butner, Zachary Pirtle
In complex work domains and organizations, understanding schedule-ing dynamics can ensure objectives are reached and delays are mitigated. In the current paper, we examine the scheduling dynamics for NASA's Exploration Flight Test 1 (EFT-1) activities. For this examination, we specifically modeled simultaneous change in percent complete and estimated duration for a given project as they were included in monthly reports over time. In short, we utilized latent change score mixture modeling to extract the attractor dynamics within the scheduling data...
July 2017: Nonlinear Dynamics, Psychology, and Life Sciences
keyword
keyword
115495
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"