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https://www.readbyqxmd.com/read/29345986/vital-signs-seismology-of-icy-ocean-worlds
#1
Steven D Vance, Sharon Kedar, Mark P Panning, Simon C Stähler, Bruce G Bills, Ralph D Lorenz, Hsin-Hua Huang, W T Pike, Julie C Castillo, Philippe Lognonné, Victor C Tsai, Alyssa R Rhoden
Ice-covered ocean worlds possess diverse energy sources and associated mechanisms that are capable of driving significant seismic activity, but to date no measurements of their seismic activity have been obtained. Such investigations could reveal the transport properties and radial structures, with possibilities for locating and characterizing trapped liquids that may host life and yielding critical constraints on redox fluxes and thus on habitability. Modeling efforts have examined seismic sources from tectonic fracturing and impacts...
January 2018: Astrobiology
https://www.readbyqxmd.com/read/29343601/the-evolution-of-sexual-signal-modes-and-associated-sensor-morphology-in-fireflies-lampyridae-coleoptera
#2
Kathrin F Stanger-Hall, Sarah E Sander Lower, Lauri Lindberg, Andrew Hopkins, Jenna Pallansch, David W Hall
Animals employ different sexual signal modes (e.g. visual, acoustic, chemical) in different environments and behavioural contexts. If sensory structures are costly, then evolutionary shifts in primary signal mode should be associated with changes in sensor morphology. Further, sex differences are expected if male and female signalling behaviours differ. Fireflies are known for their light displays, but many species communicate exclusively with pheromones, including species that recently lost their light signals...
January 31, 2018: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/29337434/light-and-darkness
#3
EDITORIAL
Pontus B Persson, Anja B Persson
Life on earth follows cyclic processes, of which the diurnal cycle of the sun rising and setting is one of the most evident. The rotation of the earth dictates the waking and resting cycles of numerous life forms on earth. While we can safely assume that our earliest human ancestors will have recognized, sometimes feared or even worshipped the cyclic nature of Life on Earth, the knowledge that almost "all multicellular organisms, including humans, utilize a similar mechanism to control circadian rhythms" [1], has only very recently warranted a Nobel Prize in Physiology/Medicine...
January 16, 2018: Acta Physiologica
https://www.readbyqxmd.com/read/29337074/in-situ-clock-shift-reveals-that-the-sun-compass-contributes-to-orientation-in-a-pelagic-seabird
#4
Oliver Padget, Sarah L Bond, Marwa M Kavelaars, Emiel van Loon, Mark Bolton, Annette L Fayet, Martyna Syposz, Stephen Roberts, Tim Guilford
Compass orientation is central to the control of animal movement from the scale of local food-caching movements around a familiar area in parids [1] and corvids [2, 3] to the first autumn vector navigation of songbirds embarking on long-distance migration [4-6]. In the study of diurnal birds, where the homing pigeon, Columba livia, has been the main model, a time-compensated sun compass [7] is central to the two-step map-and-compass process of navigation from unfamiliar places, as well as guiding movement via a representation of familiar area landmarks [8-12]...
January 5, 2018: Current Biology: CB
https://www.readbyqxmd.com/read/29333571/diurnal-variations-in-personal-care-products-in-seawater-and-mussels-at-three-mediterranean-coastal-sites
#5
Marina Picot-Groz, Hélène Fenet, Maria Jesus Martinez Bueno, David Rosain, Elena Gomez
The presence of personal care products (PCPs) in the marine environment is of major concern. PCPs, UV filters, and musks can enter the marine environment indirectly through wastewater or directly via recreational activities. We conducted this study to document patterns in the occurrence of seven PCPs at three coastal sites impacted by recreational activities during 1 day. The study focused on diurnal variations in these seven PCPs in seawater and indigenous mussels. In seawater, UV filters showed diurnal variations that mirrored variations in recreational activities at the sites...
January 15, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29333358/investigating-the-seasonal-and-diurnal-cycles-of-ocean-vector-winds-near-the-philippines-using-rapidscat-and-ccmp
#6
Timothy J Lang
The seasonal and diurnal cycles of ocean vector winds in the domain of the South China Sea are characterized and compared using RapidScat and the Cross-Calibrated Multi-Platform (CCMP) data sets. Broad agreement in seasonal flow patterns exists between these data sets during the year 2015. Both observe the dramatic reversal from wintertime trade winds (November-April) to westerly flow associated with the summer monsoon (May-October). These seasonal changes have strong but not equivalent effects on mean wind divergence patterns in both data sets...
September 27, 2017: Journal of Geophysical Research. Atmospheres: JGR
https://www.readbyqxmd.com/read/29332008/leg-stereotypy-syndrome-phenomenology-and-prevalence
#7
Mitesh Lotia, Michele K York, Adriana M Strutt, Joseph Jankovic
OBJECTIVES: To describe the phenomenology and prevalence of leg stereotypy syndrome (LSS), characterised chiefly by repetitive, rhythmical, stereotypic leg movement, especially when sitting. METHODS: We sought to characterise LSS in two groups of subjects: (1) general population (GP) group, defined as individuals accompanying patients during their visits to Baylor College of Medicine Parkinson's Disease Center and Movement Disorders Clinic who are not genetically related to the patients; and (2) movement disorders (MD) group, composed of consecutive patients with diagnoses of restless legs syndrome, Parkinson's disease, Tourette syndrome and tardive dyskinesia...
January 13, 2018: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/29331863/airborne-volatile-aromatic-hydrocarbons-at-an-urban-monitoring-station-in-korea-from-2013-to-2015
#8
Azmatullah Khan, Jan E Szulejko, Ki-Hyun Kim, Richard J C Brown
The concentrations of C6-C10 volatile aromatic hydrocarbons (AHCs) in air were measured at an urban air quality monitoring station in Jong-Ro, Seoul, Korea, between 2013 and 2015. Their temporal patterns (e.g., diurnal, intraweek, daily) were assessed individually and collectively as groups of benzene, toluene, ethylbenzene, styrene, and xylene (BTESX); total aliphatic hydrocarbon (TALHC: C2-C12); total aromatic hydrocarbon (TARHC: C6-C10); and total hydrocarbon (THC: C2-C12). The highest mean AHC concentrations over the 3-year study (in ppb (v/v)) were observed for toluene (6...
January 11, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29330538/flux-of-the-biogenic-volatiles-isoprene-and-dimethyl-sulfide-from-an-oligotrophic-lake
#9
Michael Steinke, Bettina Hodapp, Rameez Subhan, Thomas G Bell, Dominik Martin-Creuzburg
Biogenic volatile organic compounds (BVOCs) affect atmospheric chemistry, climate and regional air quality in terrestrial and marine atmospheres. Although isoprene is a major BVOC produced in vascular plants, and marine phototrophs release dimethyl sulfide (DMS), lakes have been widely ignored for their production. Here we demonstrate that oligotrophic Lake Constance, a model for north temperate deep lakes, emits both volatiles to the atmosphere. Depth profiles indicated that highest concentrations of isoprene and DMS were associated with the chlorophyll maximum, suggesting that their production is closely linked to phototrophic processes...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29329340/cognitive-control-moderates-parenting-stress-effects-on-children-s-diurnal-cortisol
#10
Laurel Raffington, Florian Schmiedek, Christine Heim, Yee Lee Shing
This study investigated associations between parenting stress in parents and self-reported stress in children with children's diurnal cortisol secretion and whether these associations are moderated by known stress-regulating capacities, namely child cognitive control. Salivary cortisol concentrations were assessed from awakening to evening on two weekend days from 53 6-to-7-year-old children. Children completed a cognitive control task and a self-report stress questionnaire with an experimenter, while parents completed a parenting stress inventory...
2018: PloS One
https://www.readbyqxmd.com/read/29327733/orthopaedic-treatment-effects-of-functional-therapy-on-the-sagittal-pharyngeal-dimensions-in-subjects-with-sleep-disordered-breathing-and-class-ii-malocclusion
#11
C Pavoni, E Cretella Lombardo, R Lione, P Bollero, F Ottaviani, P Cozza
The purpose of this cephalometric study was to evaluate the craniofacial changes induced by functional treatment of mandibular advancement with special regard to pharyngeal sagittal airway dimensions, tongue and hyoid bone position in subjects with sleep-disordered breathing (SDB) and dentoskeletal Class II malocclusions compared with an untreated Class II control group. 51 subjects (24 female, 27 male; mean age 9.9 ± 1.3 years) with Class II malocclusion and SDB consecutively treated with a functional appliance (Modify Monobloc, MM) were compared with a control group of 31 subjects (15 males, 16 females; mean age 10...
December 2017: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/29327304/the-irrigation-effect-how-river-regulation-can-promote-some-riparian-vegetation
#12
Karen M Gill, Lori A Goater, Jeffrey H Braatne, Stewart B Rood
River regulation impacts riparian ecosystems by altering the hydrogeomorphic conditions that support streamside vegetation. Obligate riparian plants are often negatively impacted since they are ecological specialists with particular instream flow requirements. Conversely, facultative riparian plants are generalists and may be less vulnerable to river regulation, and could benefit from augmented flows that reduce drought stress during hot and dry periods. To consider this 'irrigation effect' we studied the facultative shrub, netleaf hackberry (Celtis reticulata), the predominant riparian plant along the Hells Canyon corridor of the Snake River, Idaho, USA, where dams produce hydropeaking, diurnal flow variation...
January 11, 2018: Environmental Management
https://www.readbyqxmd.com/read/29324595/association-of-pharmacologic-treatment-of-urgency-urinary-incontinence-with-sleep-quality-and-daytime-sleepiness
#13
Qurratul A Warsi, Alison J Huang, Rachel Hess, Lily A Arya, Holly E Richter, Catherine S Bradley, Rebecca G Rogers, Deborah L Myers, Karen C Johnson, William D Winkelman, W Thomas Gregory, Stephen R Kraus, Michael Schembri, Jeanette S Brown, Katie L Stone, Leslee L Subak
OBJECTIVE: To evaluate the association between pharmacologic therapy for urgency urinary incontinence (UUI) and sleep quality. METHODS: We conducted a planned secondary data analysis of sleep outcomes in a previously conducted multicenter, double-blind, 12-week randomized trial of pharmacologic therapy for urgency-predominant incontinence among community-dwelling women self-diagnosed using the 3-Incontinence Questions questionnaire. Participants (N=645) were assigned randomly to 4-8 mg antimuscarinic therapy daily or placebo...
January 9, 2018: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29323216/characterization-of-isoprene-derived-secondary-organic-aerosols-at-a-rural-site-in-north-china-plain-with-implications-for-anthropogenic-pollution-effects
#14
Jianjun Li, Gehui Wang, Can Wu, Cong Cao, Yanqin Ren, Jiayuan Wang, Jin Li, Junji Cao, Limin Zeng, Tong Zhu
Isoprene is the most abundant non-methane volatile organic compound (VOC) and the largest contributor to secondary organic aerosol (SOA) burden on a global scale. In order to examine the influence of high concentrations of anthropogenic pollutants on isoprene-derived SOA (SOA i ) formation, summertime PM2.5 filter samples were collected with a three-hour sampling interval at a rural site in the North China Plain (NCP), and determined for SOA i tracers and other chemical species. RO2+NO pathway derived 2-methylglyceric acid presented a relatively higher contribution to the SOA i due to the high-NOx (~20 ppb) conditions in the NCP that suppressed the reactive uptake of RO2+HO2 reaction derived isoprene epoxydiols...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29321898/sap-flow-characteristics-and-responses-to-summer-rainfall-for-pinus-tabulaeformis-and-hippophae-rhamnoides-in-the-loess-hilly-region-of-china
#15
Xu Wu, Yakun Tang, Yunming Chen, Jie Wen, Yuli Xie, Senbao Lu
As a major driving element of the structure and function of arid and semiarid ecosystems, rainfall is the essential factor limiting plant biological processes. To clarify the characteristics of transpiration and responses to summer rainfall, sap flow density (Fd) of Pinus tabulaeformis and Hippophae rhamnoides was monitored using thermal dissipation probes. In addition, midday leaf water potential (ψm) and leaf stomatal conductance (Gs) were also analyzed to determine water use strategies. The results indicated that the diurnal variation in the normalized Fd values exhibited a single-peak curve for P...
January 2018: Ecology and Evolution
https://www.readbyqxmd.com/read/29321240/pigment-dispersing-factor-expressing-neurons-convey-circadian-information-in-the-honey-bee-brain
#16
Katharina Beer, Esther Kolbe, Noa B Kahana, Nadav Yayon, Ron Weiss, Pamela Menegazzi, Guy Bloch, Charlotte Helfrich-Förster
Pigment-Dispersing Factor (PDF) is an important neuropeptide in the brain circadian network of Drosophila and other insects, but its role in bees in which the circadian clock influences complex behaviour is not well understood. We combined high-resolution neuroanatomical characterizations, quantification of PDF levels over the day and brain injections of synthetic PDF peptide to study the role of PDF in the honey bee Apis mellifera We show that PDF co-localizes with the clock protein Period (PER) in a cluster of laterally located neurons and that the widespread arborizations of these PER/PDF neurons are in close vicinity to other PER-positive cells (neurons and glia)...
January 2018: Open Biology
https://www.readbyqxmd.com/read/29315552/projections-of-three-subcortical-visual-centres-to-marmoset-lateral-geniculate-nucleus
#17
Natalie Zeater, Péter Buzás, Bogdan Dreher, Ulrike Grünert, Paul R Martin
The dorsal lateral geniculate nucleus receives projections from visuotopically organised subcortical nuclei, in addition to inputs from the retina, visual cortices, and the thalamic reticular nucleus. Here, we study subcortical projections to the geniculate from the superior colliculus (SC) and parabigeminal nucleus (PBG) in the midbrain, and the nucleus of the optic tract (NOT) in the pretectum of marmosets. Marmosets are New World diurnal foveate monkeys, and are an increasingly popular model for studying the primate visual system...
January 9, 2018: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/29314052/osprr37-confers-an-expanded-regulation-of-the-diurnal-rhythms-of-the-transcriptome-and-photoperiodic-flowering-pathways-in-rice
#18
Chuan Liu, Xuefeng Qu, Yanhao Zhou, Gaoyuan Song, Naghmeh Abiri, Yuhui Xiao, Fan Liang, Daiming Jiang, Zhongli Hu, Daichang Yang
The circadian clock enables organisms to rapidly adapt to the ever-changing environmental conditions that are caused by daily light/dark cycles. Circadian clock genes universally affect key agricultural traits, particularly flowering time. Here, we show that OsPRR37, a circadian clock gene, delays rice flowering time in an expression level-dependent manner. Using high-throughput mRNA sequencing (RNA-seq) on an OsPRR37 overexpressing transgenic line (OsPRR37-OE5) and the recipient parent Guangluai4 (GL) that contains the loss-of-function Osprr37, we identify 14,992 genes that display diurnal rhythms, which account for 52...
January 5, 2018: Plant, Cell & Environment
https://www.readbyqxmd.com/read/29308828/propofol-for-the-promotion-of-sleep-in-adults-in-the-intensive-care-unit
#19
REVIEW
Sharon R Lewis, Oliver J Schofield-Robinson, Phil Alderson, Andrew F Smith
BACKGROUND: People in the intensive care unit (ICU) experience sleep deprivation caused by environmental disruption, such as high noise levels and 24-hour lighting, as well as increased patient care activities and invasive monitoring as part of their care. Sleep deprivation affects physical and psychological health, and people perceive the quality of their sleep to be poor whilst in the ICU. Propofol is an anaesthetic agent which can be used in the ICU to maintain patient sedation and some studies suggest it may be a suitable agent to replicate normal sleep...
January 8, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29308577/the-prevalence-of-diurnal-urinary-incontinence-and-enuresis-and-quality-of-life-sample-of-school
#20
Sevim Savaser, Nezihe Kizilkaya Beji, Ergul Aslan, Duygu Gozen
PURPOSE: Enuresis can cause loss of self-esteem in children, change relations with family and friends, and decrease the school success. This study was conducted to determine the prevalence of urinary incontinence (UI) in school children aged between 11-14 years and identify the emotions and social problems of enuretic children. MATERIALS AND METHODS: A mixed methods approach was used on a group of students who reported UI by combining quantitative data from school population-based cross-sectional design with qualitative data using in-depth interview techniques...
January 8, 2018: Urology Journal
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