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https://www.readbyqxmd.com/read/28318454/infant-stranger-fear-trajectories-predict-anxious-behaviors-and-diurnal-cortisol-rhythm-during-childhood
#1
Carol A Van Hulle, Mollie N Moore, Kathryn Lemery-Chalfant, H Hill Goldsmith, Rebecca J Brooker
Although a robust literature has linked stable, high levels of fear across childhood to increased risk for anxiety problems, less is known about alternative pathways to anxiety. We tested two putatively normative developmental pathways of early fearfulness for their distinct associations with behavioral (anxiety-related behaviors and symptoms) and biological (diurnal cortisol) markers of anxiety risk in middle childhood in a community-based sample (n = 107). Steeper increases in fear from 6 to 36 months predicted more parent-reported anxiety symptoms at age 8 years...
March 20, 2017: Development and Psychopathology
https://www.readbyqxmd.com/read/28306291/new-paradigm-for-turbulent-transport-across-a-steep-gradient-in-toroidal-plasmas
#2
H S Xie, Y Xiao, Z Lin
First principles gyrokinetic simulation of the edge turbulent transport in toroidal plasmas finds a reverse trend in the turbulent transport coefficients under strong gradients. It is found that there exist both linear and nonlinear critical gradients for the nonmonotonicity of transport characteristics. The discontinuity of the transport flux slope around the turning gradient shows features of a second order phase transition. Under a strong gradient the most unstable modes are in nonground eigenstates with unconventional mode structures, which significantly reduces the effective correlation length and thus reverse the transport trend...
March 3, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28303142/nitrogen-use-efficiency-of-coffee-at-the-vegetative-stage-as-influenced-by-fertilizer-application-method
#3
Alveiro Salamanca-Jimenez, Timothy A Doane, William R Horwath
Nitrogen (N) is the most limiting nutrient for coffee production in Colombia. An adequate supply is especially important during the vegetative period of growth, since any deficiency during this short period is known to have lasting effects on subsequent coffee bean production. Urea fertilizer is commonly applied on the soil surface since steep slopes hamper incorporation into soil, a practice which increases the risk of N volatilization. Little information is available on N recovery during early growth stages under different fertilizer application practices...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28295107/self-wrapping-of-an-ouzo-drop-induced-by-evaporation-on-a-superamphiphobic-surface
#4
Huanshu Tan, Christian Diddens, Michel Versluis, Hans-Jürgen Butt, Detlef Lohse, Xuehua Zhang
Evaporation of multi-component drops is crucial to various technologies and has numerous potential applications because of its ubiquity in nature. Superamphiphobic surfaces, which are both superhydrophobic and superoleophobic, can give a low wettability not only for water drops but also for oil drops. In this paper, we experimentally, numerically and theoretically investigate the evaporation process of millimetric sessile ouzo drops (a transparent mixture of water, ethanol, and trans-anethole) with low wettability on a superamphiphobic surface...
March 15, 2017: Soft Matter
https://www.readbyqxmd.com/read/28260600/trends-in-population-blood-pressure-and-determinant-factors-for-population-blood-pressure
#5
Ulla Overgaard Andersen
Strategies to reduce the burden of blood pressure attributable diseases require knowledge of secular trend in PBP and its determinants. The issues were investigated in the Copenhagen City Heart Study. The design of CCHS is a repeated measures study. Such designs are uniquely suited to studying changes of an outcome and what risk factors may be associated with that outcome. Repeated measures studies are very well suited for trend analysis by using mixed effect analyses. SBP decreased about 2 mmHg in 25 years...
March 2017: Danish Medical Journal
https://www.readbyqxmd.com/read/28255568/association-between-lateral-posterior-tibial-slope-body-mass-index-and-acl-injury-risk
#6
Katherine M Bojicic, Mélanie L Beaulieu, Daniel Y Imaizumi Krieger, James A Ashton-Miller, Edward M Wojtys
BACKGROUND: While body mass index (BMI), a modifiable parameter, and knee morphology, a nonmodifiable parameter, have been identified as risk factors for anterior cruciate ligament (ACL) rupture, the interaction between them remains unknown. An understanding of this interaction is important because greater compressive axial force (perhaps due to greater BMI) applied to a knee that is already at an increased risk because of its geometry, such as a steep lateral posterior tibial slope, could further increase the probability of ACL injury...
February 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28248309/microstructures-define-melting-of-molybdenum-at-high-pressures
#7
Rostislav Hrubiak, Yue Meng, Guoyin Shen
High-pressure melting anchors the phase diagram of a material, revealing the effect of pressure on the breakdown of the ordering of atoms in the solid. An important case is molybdenum, which has long been speculated to undergo an exceptionally steep increase in melting temperature when compressed. On the other hand, previous experiments showed nearly constant melting temperature as a function of pressure, in large discrepancy with theoretical expectations. Here we report a high-slope melting curve in molybdenum by synchrotron X-ray diffraction analysis of crystalline microstructures, generated by heating and subsequently rapidly quenching samples in a laser-heated diamond anvil cell...
March 1, 2017: Nature Communications
https://www.readbyqxmd.com/read/28222978/toxicity-of-platinum-palladium-and-rhodium-to-daphnia-magna-in-single-and-binary-metal-exposure-experiments
#8
Sonja Zimmermann, Carolina Wolff, Bernd Sures
Mainly due to automobile traffic, but also due to other sources, the platinum group elements (PGE) platinum (Pt), palladium (Pd) and rhodium (Rh) are introduced into aquatic biotopes where they accumulate in sediments of lakes and rivers. However, the toxicity of these noble metals to aquatic organisms is not well understood and especially toxicity studies under standardized condition are lacking. Thus, the toxicity of Pt, Pd and Rh to Daphnia magna was tested in single metal exposure experiments according to OECD guideline 202...
February 17, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28222134/gis-based-landform-classification-of-bronze-age-archaeological-sites-on-crete-island
#9
Athanasios V Argyriou, Richard M Teeuw, Apostolos Sarris
Various physical attributes of the Earth's surface are factors that influence local topography and indirectly influence human behaviour in terms of habitation locations. The determination of geomorphological setting plays an important role in archaeological landscape research. Several landform types can be distinguished by characteristic geomorphic attributes that portray the landscape surrounding a settlement and influence its ability to sustain a population. Geomorphometric landform information, derived from digital elevation models (DEMs), such as the ASTER Global DEM, can provide useful insights into the processes shaping landscapes...
2017: PloS One
https://www.readbyqxmd.com/read/28211180/slope-of-psychometric-functions-and-termination-rule-analysis-for-low-contrast-acuity-charts
#10
Andrew Carkeet, Ian L Bailey
PURPOSE: To assess whether the slopes of psychometric functions for measuring low contrast letter acuity were different from those for measuring high contrast letter acuity. METHODS: Ten participants, wearing their best spectacle correction, were assessed monocularly. Stimuli were logarithmic progression charts, generated on a computer monitor, with nine rows of five randomised Sloan letters generated in either high contrast format (Weber contrast 99.2%) or low contrast format (Weber contrast 18...
March 2017: Ophthalmic & Physiological Optics: the Journal of the British College of Ophthalmic Opticians (Optometrists)
https://www.readbyqxmd.com/read/28183867/propulsion-in-hexapod-locomotion-how-do-desert-ants-traverse-slopes
#11
Toni Wöhrl, Lars Reinhardt, Reinhard Blickhan
The employment of an alternating tripod gait to traverse uneven terrains is a common characteristic shared among many hexapoda. Since this could be one specific cause for their ecological success, we examined the alternating tripod gait of the desert ant Cataglyphis fortis together with their ground reaction forces and weight-specific leg impulses for level locomotion and on moderate (±30°) and steep (±60°) slopes in order to understand mechanical functions of individual legs during inclined locomotion...
February 9, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28150534/evaluating-multipulse-integration-as-a-neural-health-correlate-in-human-cochlear-implant-users-relationship-to-psychometric-functions-for-detection
#12
Ning Zhou, Lixue Dong
In electrical hearing, multipulse integration (MPI) describes the rate at which detection threshold decreases with increasing stimulation rate in a fixed-duration pulse train. In human subjects, MPI has been shown to be dependent on the psychophysically estimated spread of neural excitation at a high stimulation rate, with broader spread predicting greater integration. The first aim of the present study was to replicate this finding using alternative methods for measuring MPI and spread of neural excitation...
2017: Trends in Hearing
https://www.readbyqxmd.com/read/28148208/a-novel-risk-assessment-method-for-landfill-slope-failure-case-study-application-for-bhalswa-dumpsite-india
#13
Ali Jahanfar, Mohsen Amirmojahedi, Bahram Gharabaghi, Brajesh Dubey, Edward McBean, Dinesh Kumar
Rapid population growth of major urban centres in many developing countries has created massive landfills with extraordinary heights and steep side-slopes, which are frequently surrounded by illegal low-income residential settlements developed too close to landfills. These extraordinary landfills are facing high risks of catastrophic failure with potentially large numbers of fatalities. This study presents a novel method for risk assessment of landfill slope failure, using probabilistic analysis of potential failure scenarios and associated fatalities...
January 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/28147610/evidence-for-apical-basal-transition-in-the-delay-of-the-reflection-components-of-otoacoustic-emissions
#14
A Moleti, D Pistilli, R Sisto
Stimulus-frequency, transient-evoked, and distortion product otoacoustic emissions (OAEs) have been measured in eight normal-hearing human ears over a wide stimulus level range, with high spectral resolution. The single-reflection component of the response was isolated using time-frequency filtering, and its average delay was measured as a function of frequency and stimulus level. The apical-basal transition was studied by fitting the average delay of the filtered single-reflection OAEs, expressed in number of cycles, to a three-slope power-law function with two knot frequencies...
January 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28146574/lower-mesophotic-coral-communities-60-125-m-depth-of-the-northern-great-barrier-reef-and-coral-sea
#15
Norbert Englebert, Pim Bongaerts, Paul R Muir, Kyra B Hay, Michel Pichon, Ove Hoegh-Guldberg
Mesophotic coral ecosystems in the Indo-Pacific remain relatively unexplored, particularly at lower mesophotic depths (≥60 m), despite their potentially large spatial extent. Here, we used a remotely operated vehicle to conduct a qualitative assessment of the zooxanthellate coral community at lower mesophotic depths (60-125 m) at 10 different locations in the Great Barrier Reef Marine Park and the Coral Sea Commonwealth Marine Reserve. Lower mesophotic coral communities were present at all 10 locations, with zooxanthellate scleractinian corals extending down to ~100 metres on walls and ~125 m on steep slopes...
2017: PloS One
https://www.readbyqxmd.com/read/28126658/pluripotency-of-embryo-derived-stem-cells-from-rodents-lagomorphs-and-primates-slippery-slope-terrace-and-cliff
#16
REVIEW
Pierre Savatier, Pierre Osteil, Patrick P L Tam
The diverse cell states and in vitro conditions for the derivation and maintenance of the mammalian embryo-derived pluripotent stem cells raise the questions of whether there are multiple states of pluripotency of the stem cells of each species, and if there are innate species-specific variations in the pluripotency state. We will address these questions by taking a snapshot of our knowledge of the properties of the pluripotent stem cells, focusing on the maintenance of pluripotency and inter-conversion of the different types of pluripotent stem cells from rodents, lagomorphs and primates...
March 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28092318/opening-injection-pressure-is-higher-in-intraneural-compared-with-perineural-injections-during-simulated-nerve-blocks-of-the-lower-limb-in-fresh-human-cadavers
#17
Kris Vermeylen, Marlies Hermans, Filiep Soetens, Evie Vereecke, Thorsten Steinfeldt, Gerbrand Groen, Admir Hadzic, Marc Van de Velde
BACKGROUND AND OBJECTIVES: Needle-induced nerve trauma and intraneural injection can lead to neurologic injury during peripheral nerve blocks. In this study, we assessed the utility of opening injection pressure (OIP), time to OIP, and rate of rise to OIP in detecting needle-nerve contact and intraneural injection. METHODS: Five common ultrasound-guided blocks of the femoral, saphenous, subgluteal sciatic, tibial, and common peroneal nerves were simulated in 10 fresh cadavers...
January 13, 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/28091741/chemical-physical-and-biological-factors-shape-littoral-invertebrate-community-structure-in-coal-mining-end-pit-lakes
#18
Andreas Luek, Joseph B Rasmussen
Aquatic invertebrates form the base of the consumer food web in lakes. In coal-mining end-pit lakes, invertebrates are exposed to an environment with potentially challenging physical and chemical features. We hypothesized that the physical and chemical features of end-pit lakes reduce critical littoral habitat and thus reduce invertebrate diversity, thereby limiting the potential for these lakes to be naturalized. We used a multivariate approach using principle component analysis and redundancy analysis to study relationships between invertebrate community structure, habitat features, and water quality in five end-pit lakes and five natural lakes in the Rocky Mountain foothills of west-central Alberta, Canada...
January 13, 2017: Environmental Management
https://www.readbyqxmd.com/read/28081432/changes-in-age-patterns-of-suicide-in-australia-the-united-states-japan-and-hong-kong
#19
John Snowdon, Julie Phillips, Baoliang Zhong, Takashi Yamauchi, Helen F K Chiu, Yeates Conwell
The patterns of association between age and suicide rate vary by country, subpopulation and gender, and over time. To shed light on factors associated with these differences, we analysed suicide data from four populations, two 'Western' (Australia, the United States [US]) and two Asian (Japan and Hong Kong). We computed suicide rates in five-year age-groups (between 10 and 14 years and 85+ years) for men and women separately, and present graphical representations of the age patterns during selected five-year periods...
March 15, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28080302/the-road-to-bribery-and-corruption
#20
Nils C Köbis, Jan-Willem van Prooijen, Francesca Righetti, Paul A M Van Lange
Major forms of corruption constitute a strong threat to the functioning of societies. The most frequent explanation of how severe corruption emerges is the slippery-slope metaphor-the notion that corruption occurs gradually. While having widespread theoretical and intuitive appeal, this notion has barely been tested empirically. We used a recently developed paradigm to test whether severely corrupt acts happen gradually or abruptly. The results of four experimental studies revealed a higher likelihood of severe corruption when participants were directly given the opportunity to engage in it (abrupt) compared with when they had previously engaged in minor forms of corruption (gradual)...
March 2017: Psychological Science
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