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https://www.readbyqxmd.com/read/28424880/herbicide-toxicity-testing-with-non-target-boreal-plants-the-sensitivity-of-achillea-millefolium-l-and-chamerion-angustifolium-l-to-triclopyr-and-imazapyr
#1
Krystal M Isbister, Eric G Lamb, Katherine J Stewart
Terrestrial plant toxicity tests were conducted to determine the sensitivity of two boreal plants, yarrow (Achillea millefolium L.) and fireweed (Chamerion angustifolium L.), to the herbicides imazapyr and triclopyr. Both plants are common non-target species on northern powerline rights-of-way where the impacts of proposed herbicide applications are of concern. In the vegetative vigour test, triclopyr foliar spray caused extensive damage to A. millefolium at <50% of the maximum field application rate (inhibition concentration (IC)50 = 1443...
April 19, 2017: Environmental Management
https://www.readbyqxmd.com/read/28383989/fairness-overrides-group-bias-in-children-s-second-party-punishment
#2
Katherine McAuliffe, Yarrow Dunham
Adults and children show ingroup favoritism in their 3rd-party punishment of cooperative norm violations, suggesting that group loyalty importantly shapes enforcement of cooperation. Ingroup favoritism additionally influences punishment of unfairness in the 2-party ultimatum game, in which people are directly affected by unfair behavior. However, the directionality of this relationship is unclear: In some cases, people are more forgiving of ingroup unfairness, whereas in others they are less forgiving. Here we aim to disambiguate this relationship by studying its origins in development, asking whether ingroup favoritism influences children's offers to others and whether it affects their responses to being treated unfairly...
April 2017: Journal of Experimental Psychology. General
https://www.readbyqxmd.com/read/28376847/performance-of-variable-selection-methods-using-stability-based-selection
#3
Danny Lu, Aalim Weljie, Alexander R de Leon, Yarrow McConnell, Oliver F Bathe, Karen Kopciuk
BACKGROUND: Variable selection is frequently carried out during the analysis of many types of high-dimensional data, including those in metabolomics. This study compared the predictive performance of four variable selection methods using stability-based selection, a new secondary selection method that is implemented in the R package BioMark. Two of these methods were evaluated using the more well-known false discovery rate (FDR) as well. RESULTS: Simulation studies varied factors relevant to biological data studies, with results based on the median values of 200 partial area under the receiver operating characteristic curve...
April 4, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28338402/testosterone-plus-finasteride-prevents-bone-loss-without-prostate-growth-in-a-rodent-spinal-cord-injury-model
#4
Joshua F Yarrow, Ean G Phillips, Christine F Conover, Taylor E Bassett, Cong Chen, Tyler Teurlings, Andrea Vasconez, Jonathan Alerte, Hannah M Prock, Jessica M Jiron, Micah Flores, J Ignacio Aguirre, Stephen E Borst, Fan Ye
We have reported that testosterone-enanthate (TE) prevents the musculoskeletal decline occurring acutely after spinal cord injury (SCI), but results in a near doubling of prostate mass. Our purpose was to test the hypothesis that administration of TE plus finasteride (FIN, type II 5α-reductase inhibitor) would prevent the chronic musculoskeletal deficits in our rodent severe contusion SCI model, without inducing prostate enlargement. Forty-three 16-week old male Sprague-Dawley rats received: (1) SHAM surgery (T9 laminectomy), (2) severe (250 kdyne) contusion SCI, (3) SCI+TE (7...
March 24, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28334066/effect-of-drive-row-ground-covers-on-hop-rosales-cannabaceae-yard-arthropod-pests-in-vermont-usa
#5
L Calderwood, J Cubins, D Vesty, H Darby
Alternatives to pesticides are necessary for the management of hop (Humulus lupulus L.) arthropod pests. The three major arthropod pests in northeastern US hop production include two-spotted spider mite, Tetranychus urticae Koch, hop aphid Phorodon humuli (Schrank), and potato leafhopper, Empoasca fabae Harris. This 3-yr study (2012-2014) in Vermont investigated the effect of flowering ground covers on arthropod pest abundance. Hop cultivars 'Nugget' and 'Cascade' were evaluated under a strip-split plot experimental design...
April 1, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28278738/evidence-for-a-relationship-between-trait-gratitude-and-prosocial-behaviour
#6
Rachel Yost-Dubrow, Yarrow Dunham
Prosocial behaviour towards unrelated others is communally beneficial but can be individually costly. The emotion of gratitude mitigates this cost by encouraging direct as well as "upstream" reciprocity, thereby facilitating cooperation. A widely used method for measuring trait gratitude is the Gratitude Questionnaire (GQ6) [McCullough, M., Emmons, R., & Tsang, J. (2002). The grateful disposition: A conceptual and empirical topography. Journal of Personality and Social Psychology, 82, 112-127. Retrieved from http://dx...
February 16, 2017: Cognition & Emotion
https://www.readbyqxmd.com/read/28242344/mutual-intentions-as-a-causal-framework-for-social-groups
#7
Alexander Noyes, Yarrow Dunham
Children's early emerging intuitive theories are specialized for different conceptual domains. Recently attention has turned to children's concepts of social groups, finding that children believe that many social groups mark uniquely social information such as allegiances and obligations. But another critical component of intuitive theories, the causal beliefs that underlie category membership, has received less attention. We propose that children believe membership in these groups is constituted by mutual intentions: i...
February 24, 2017: Cognition
https://www.readbyqxmd.com/read/28230397/weighted-integration-suggests-that-visual-and-tactile-signals-provide-independent-estimates-about-duration
#8
Danny M Ball, Derek H Arnold, Kielan Yarrow
Humans might possess either a single (amodal) internal clock or multiple clocks for different sensory modalities. Sensitivity could be improved by the provision of multiple signals. Such improvements can be predicted quantitatively, assuming estimates are combined by summation, a process described as optimal when summation is weighted in accordance with the variance associated with each of the initially independent estimates. This possibility was assessed for visual and tactile information regarding temporal intervals...
May 2017: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/28229563/how-does-social-essentialism-affect-the-development-of-inter-group-relations
#9
Marjorie Rhodes, Sarah-Jane Leslie, Katya Saunders, Yarrow Dunham, Andrei Cimpian
Psychological essentialism is a pervasive conceptual bias to view categories as reflecting something deep, stable, and informative about their members. Scholars from diverse disciplines have long theorized that psychological essentialism has negative ramifications for inter-group relations, yet little previous empirical work has experimentally tested the social implications of essentialist beliefs. Three studies (N = 127, ages 4.5-6) found that experimentally inducing essentialist beliefs about a novel social category led children to share fewer resources with category members, but did not lead to the out-group dislike that defines social prejudice...
February 22, 2017: Developmental Science
https://www.readbyqxmd.com/read/28214238/high-prevalence-of-low-serum-biologically-active-testosterone-in%C3%A2-older-male-veterans
#10
Christine F Conover, Joshua F Yarrow, Timothy J Garrett, Fan Ye, Eoin P Quinlivan, Darryl F Cannady, Mark D Peterson, Stephen E Borst
OBJECTIVES: Assess the prevalence of hypogonadism in older male Veterans by comparing direct measurements of total testosterone (T) and bioavailable testosterone (BioT) versus indirect BioT values derived from existing and newly developed regression analyses. DESIGN: Cohort study. SETTING: Malcom Randall VA Medical Center, Gainesville, FL. PARTICIPANTS: Community-dwelling male Veterans aged 60 and older (n = 203). MEASUREMENTS: Total T, BioT, albumin, sex hormone-binding globulin (SHBG), and body mass index were evaluated...
April 1, 2017: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/28175223/n802-improving-care-for-patients-with-perianal-crohn-s-disease-review-of-a-perianal-virtual-clinic
#11
H Yarrow, P Irving, A Williams, F Hibberts, I Koumoutsos, A Darakhshan, E Westcott, J Duncan
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28167410/objects-rapidly-prime-the-motor-system-when-located-near-the-dominant-hand
#12
Paula J Rowe, Corinna Haenschel, Maciej Kosilo, Kielan Yarrow
Objects are said to automatically "afford" various actions depending upon the motor repertoire of the actor. Such affordances play a part in how we prepare to handle or manipulate tools and other objects. Evidence obtained through fMRI, EEG and TMS has proven that this is the case but, as yet, the temporal evolution of affordances has not been fully investigated. The aim here was to further explore the timing of evoked motor activity using visual stimuli tailored to drive the motor system. Therefore, we presented three kinds of stimuli in stereoscopic depth; whole hand grasp objects which afforded a power-grip, pinch-grip objects which afforded a thumb and forefinger precision-grip and an empty desk, affording no action...
April 2017: Brain and Cognition
https://www.readbyqxmd.com/read/28163113/the-estimation-of-the-traditionally-used-yarrow-achillea-millefolium-l-asteraceae-oil-extracts-with-anti-inflamatory-potential-in-topical-application
#13
Vanja Tadić, Ivana Arsić, Jelena Zvezdanović, Ana Zugić, Dragan Cvetković, Sava Pavkov
ETHNOPHARMACOLOGICAL RELEVANCE: Olive or sunflower oil yarrow extracts have been extensively used against inflammatory disorders and skin wound healing in traditional medicine. AIM OF THE STUDY: To evaluate oil yarrow extracts traditional use in treatment of topical/dermatological skin impairments, sodium lauryl sulfate test was applied, and in vivo measuring of the biophysical parameters (erythema index, skin capacitance and the pH of the skin) in the artificially irritated skin was performed...
February 2, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28129890/children-are-sensitive-to-norms-of-giving
#14
Katherine McAuliffe, Nichola J Raihani, Yarrow Dunham
People across societies engage in costly sharing, but the extent of such sharing shows striking cultural variation, highlighting the importance of local norms in shaping generosity. Despite this acknowledged role for norms, it is unclear when they begin to exert their influence in development. Here we use a Dictator Game to investigate the extent to which 4- to 9-year-old children are sensitive to selfish (give 20%) and generous (give 80%) norms. Additionally, we varied whether children were told how much other children give (descriptive norm) or what they should give according to an adult (injunctive norm)...
January 24, 2017: Cognition
https://www.readbyqxmd.com/read/28098776/distinguishing-benign-from-malignant-pancreatic-and-periampullary-lesions-using-combined-use-of-%C3%A2-h-nmr-spectroscopy-and-gas-chromatography-mass-spectrometry
#15
Yarrow J McConnell, Farshad Farshidfar, Aalim M Weljie, Karen A Kopciuk, Elijah Dixon, Chad G Ball, Francis R Sutherland, Hans J Vogel, Oliver F Bathe
Previous work demonstrated that serum metabolomics can distinguish pancreatic cancer from benign disease. However, in the clinic, non-pancreatic periampullary cancers are difficult to distinguish from pancreatic cancer. Therefore, to test the clinical utility of this technology, we determined whether any pancreatic and periampullary adenocarcinoma could be distinguished from benign masses and biliary strictures. Sera from 157 patients with malignant and benign pancreatic and periampullary lesions were analyzed using proton nuclear magnetic resonance (¹H-NMR) spectroscopy and gas chromatography-mass spectrometry (GC-MS)...
January 13, 2017: Metabolites
https://www.readbyqxmd.com/read/28076393/alder-nitrogen-and-lake-ecology-terrestrial-aquatic-linkages-in-the-postglacial-history-of-lone-spruce-pond-southwestern-alaska
#16
Bianca B Perren, Yarrow Axford, Darrell S Kaufman
Diatoms, combined with a multiproxy study of lake sediments (organic matter, N, δ15N, δ13C, biogenic silica, grain size, Cladocera and chironomids, Alnus pollen) from Lone Spruce Pond, Alaska detail the late-glacial to Holocene history of the lake and its response to regional climate and landscape change over the last 14.5 cal ka BP. We show that the immigration of alder (Alnus viridis) in the early Holocene marks the rise of available reactive nitrogen (Nr) in the lake as well as the establishment of a primarily planktonic diatom community...
2017: PloS One
https://www.readbyqxmd.com/read/28070303/using-species-distribution-models-to-define-nesting-habitat-of-the-eastern-metapopulation-of-double-crested-cormorants
#17
Kate L Sheehan, Samuel T Esswein, Brian S Dorr, Greg K Yarrow, Ron J Johnson
When organisms with similar phenotypes have conflicting management and conservation initiatives, approaches are needed to differentiate among subpopulations or discrete groups. For example, the eastern metapopulation of the double-crested cormorant (Phalacrocorax auritus) has a migratory phenotype that is culled because they are viewed as a threat to commercial and natural resources, whereas resident birds are targeted for conservation. Understanding the distinct breeding habitats of resident versus migratory cormorants would aid in identification and management decisions...
January 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28032105/evaluation-of-some-plant-essential-oils-against-the-brown-banded-cockroach-supella-longipalpa-blattaria-ectobiidae-a-mechanical-vector-of-human-pathogens
#18
Mona Sharififard, Farhad Safdari, Amir Siahpoush, Hamid Kassiri
BACKGROUND: Essential oils, as secondary plant compounds, present a safer alternative to conventional insecticides in insect control programs. So five essential oils including eucalyptus, mint, yarrow, oregano and rosemary oils were evaluated against the brown-banded cockroach Supella longipalpa. METHODS: Evaluation was done against the 3(rd) and 4(th) instar nymphs using three bioassay methods; continuous contact toxicity, fumigant toxicity and repellent activity...
December 2016: Journal of Arthropod-borne Diseases
https://www.readbyqxmd.com/read/27772806/maternal-follicular-lymphoma-presenting-with-multiple-aneuploidy-on-noninvasive-prenatal-testing
#19
Xuan Ni Tan, Rosemary Harrup, Penny Yarrow
No abstract text is available yet for this article.
February 2016: Pathology
https://www.readbyqxmd.com/read/27729224/crystal-structures-of-the-co-and-nobound-doss-gaf-a-domain-and-implications-for-doss-signaling-in-mycobacterium-tuberculosis
#20
Yarrow Madrona, Christopher A Waddling, Paul R Ortiz de Montellano
DosS is a sensor in Mycobacterium tuberculosis that differentially responds to O2, NO, and CO, as well as to changes in the redox state of the prosthetic heme iron atom. The ferrous protein and its Fe(II)NO and Fe(II)CO complexes undergo autophosphorylation and subsequently transfer the phosphate group to DosR, a nuclear factor, to activate it. In contrast, autophosphorylation is negligible with the ferric protein and the Fe(II)O2 complex. To clarify the basis for this differential response to gases, we have determined the crystal structures of the NO and COcomplexes of the DosS GAF-A domain, which contains the heme to which the gases bind...
December 15, 2016: Archives of Biochemistry and Biophysics
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