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Katie Peek
No abstract text is available yet for this article.
February 20, 2018: Scientific American
Caitlin Black, Colin Southwell, Louise Emmerson, Daniel Lunn, Tom Hart
Polar seabirds adopt different over-wintering strategies to survive and build condition during the critical winter period. Penguin species either reside at the colony during the winter months or migrate long distances. Tracking studies and survey methods have revealed differences in winter migration routes among penguin species and colonies, dependent on both biotic and abiotic factors present. However, scan sampling methods are rarely used to reveal non-breeding behaviors during winter and little is known about presence at the colony site over this period...
2018: PloS One
Jonathan Davis, Carri Casteel, Cara Hamann, Corinne Peek-Asa
OBJECTIVE: After the age of 65 the number of motor vehicle crashes per mile driven increases. Traffic-related charges issued by law enforcement can help identify drivers who are at a higher risk of having a crash. This study examines the relationship between motor vehicle crashes and traffic-related charges among older adult drivers. METHODS: Iowa Department of Transportat crash data from 2011-2012 were linked with Iowa Court Information System data for moving violations that occurred during 2009-2012 for drivers over the age of 50...
March 20, 2018: Traffic Injury Prevention
Yang Si, Zheng Zhang, Wanrong Wu, Qiuxia Fu, Kang Huang, Nitin Nitin, Bin Ding, Gang Sun
Emerging infectious diseases (EIDs) are a significant burden on global economies and public health. Most present personal protective equipment used to prevent EID transmission and infections is typically devoid of antimicrobial activity. We report on green bioprotective nanofibrous membranes (RNMs) with rechargeable antibacterial and antiviral activities that can effectively produce biocidal reactive oxygen species (ROS) solely driven by the daylight. The premise of the design is that the photoactive RNMs can store the biocidal activity under light irradiation and readily release ROS under dim light or dark conditions, making the biocidal function "always online...
March 2018: Science Advances
Małgorzata Jakubowicz, Witold Nowak, Łukasz Gałgański, Danuta Babula-Skowrońska
In this report, the members of PP2C, SnRK2a and Rboh oxidase families from Arabidopsis and poplar were studied in silico, and the expression profiles of the some of them were specified in Populus tremula buds and adult leaves. In poplars, the counterparts of ABI1- and ABI2-like protein phosphatases are lacking, but poplar genomes encode three HAB-like proteins denoted in this work as HAB1, HAB3a and HAB3b, and the counterparts of the two latter ones are absent in Arabidopsis. Nonetheless, they may be present in other species...
March 7, 2018: Journal of Plant Physiology
Whitney A Welch, Bonnie Spring, Siobhan M Phillips, Juned Siddique
INTRODUCTION: The purpose of this study is to identify whether weather-related factors moderate the effect of a physical activity (PA) intervention. METHODS: Participants (N=204, 77% female, mean age 33 [SD=11] years, mean BMI 28.2 [SD=7.1]) from the Make Better Choices 1 trial, enrolled April 2005 to April 2008, were randomized to one of two treatment conditions: (1) increase moderate to vigorous physical activity (MVPA) treatment group, or (2) decrease sedentary behavior control group...
March 15, 2018: American Journal of Preventive Medicine
Michael Hart
Daytime use of adaptive optics (AO) at large telescopes is hampered by shot noise from the bright sky background. Wave-front sensing may use a sodium laser guide star observed through a magneto-optical filter to suppress the background, but the laser beacon is not sensitive to overall image motion. To estimate that, laser-guided AO systems generally rely on light from the object itself, collected through the full aperture of the telescope. Daylight sets a lower limit to the brightness of an object that may be tracked at rates sufficient to overcome the image jitter...
March 15, 2018: Optics Letters
Jacob E Hill, Travis L DeVault, James C Beasley, Olin E Rhodes, Jerrold L Belant
Vultures provide an essential ecosystem service through removal of carrion, but globally, many populations are collapsing and several species are threatened with extinction. Widespread declines in vulture populations could increase the availability of carrion to other organisms, but the ways facultative scavengers might respond to this increase have not been thoroughly explored. We aimed to determine whether facultative scavengers increase carrion consumption in the absence of vulture competition and whether they are capable of functionally replacing vultures in the removal of carrion biomass from the landscape...
March 2018: Ecology and Evolution
William D S Killgore, Haley C Kent, Sara A Knight, Anna Alkozei
Humans demonstrate a circadian rhythm of melatonin production that closely tracks the daily light/dark cycle, with profound increases in circulating levels during the night-time and nearly nonexistent levels during daylight hours. Although melatonin is known to play a role in preparing the brain and body for sleep, its effects on cognition and brain function are not well understood. We hypothesized that declines in morning melatonin would be associated with increased functional activation within cortical regions involved in alertness, attention, and executive function...
March 9, 2018: Neuroreport
Sascha Hein, Jaap J Ten Bosch
OBJECTIVE: Restorative and prosthetic materials should provide an appearance similar to natural teeth under all light conditions, including UV-rich environments and daylight. Various studies claim that UV-induced fluorescence makes teeth whiter and brighter in daylight. The aim of this paper is to determine experimentally the significance of tooth fluorescence in natural sunlight on perceived tooth color. METHODS: A total of 35 extracted, hydrated teeth without restorations or endodontic treatments were evaluated in an experimental setup...
March 7, 2018: Dental Materials: Official Publication of the Academy of Dental Materials
Yu-Tang Shen, Kylie Radford, Gail Daylight, Robert Cumming, Tony G A Broe, Brian Draper
Aboriginal Australians experience higher levels of psychological distress, which may develop from the long-term sequelae of social determinants and adversities in early and mid-life. There is little evidence available on the impact of these on the mental health of older Aboriginal Australians. This study enrolled 336 Aboriginal Australian participants over 60 years from 5 major urban and regional areas in NSW, utilizing a structured interview on social determinants, and life-time history of physical and mental conditions; current psychosocial determinants and mental health...
March 4, 2018: International Journal of Environmental Research and Public Health
Joo Yeon Kim, Nam Sung Cho, Seungmin Cho, Kisoo Kim, Sanghoon Cheon, Kyuwon Kim, Seung-Youl Kang, Seong M Cho, Jeong-Ik Lee, Ji-Young Oh, Yong-Hae Kim, Hojun Ryu, Chi-Sun Hwang, Sujung Kim, Chil Seong Ah, Tae-Youb Kim
For environmental reason, buildings increasingly install smart windows, which can dim incoming daylight based on active electrochromic devices (ECDs). In this work, multi-layered graphene (MLG) was investigated as an ECD window electrode, to minimize carbon dioxide (CO2 ) emissions by decreasing the electricity consumption for building space cooling and heating and as an alternative to the transparent conductor tin-doped indium oxide (ITO) in order to decrease dependence on it. Various MLG electrodes with different numbers of graphene layers were prepared with environmentally friendly poly(3,4-ethylenedioxythiophene):poly(styrene-sulfonate) (PEDOT:PSS) to produce ECD cells...
March 2, 2018: Scientific Reports
Daniela V Pachito, Alan L Eckeli, Ahmed S Desouky, Mark A Corbett, Timo Partonen, Shantha Mw Rajaratnam, Rachel Riera
BACKGROUND: Exposure to light plays a crucial role in biological processes, influencing mood and alertness. Daytime workers may be exposed to insufficient or inappropriate light during daytime, leading to mood disturbances and decreases in levels of alertness. OBJECTIVES: To assess the effectiveness and safety of lighting interventions to improve alertness and mood in daytime workers. SEARCH METHODS: We searched the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, Embase, seven other databases; ClinicalTrials...
March 2, 2018: Cochrane Database of Systematic Reviews
Ilaria Pigliautile, Anna Laura Pisello
Urban population is predicted to increase rapidly and massively in the next decades, by producing also the exacerbation of urban scale climate change imputable to anthropogenic actions, such as urban heat island. In this view, urban pedestrians assume a key role in determining city livability in dense built environments, typically much more polluted than suburban or rural areas. Despite that, urban heat island experimental studies are pretty focused on data collected by means of permanent microclimate stations for environmental monitoring, also coupled with satellite measurements or mobile stations equipped over transportation media...
February 26, 2018: Science of the Total Environment
Soutick Nandi, Sooram Banesh, Vishal Trivedi, Shyam Biswas
Here, we describe a new dinitro-functionalized Zr(iv) MOF (MOF = metal-organic framework) having a UiO-66 (UiO = University of Oslo) framework topology called UiO-66-(NO2 )2 (1). It shows fluorescence turn-on behavior towards H2 S in simulated biological medium (HEPES buffer, pH = 7.4). By employing solvothermal conditions, 1 was successfully synthesized by reacting ZrCl4 , H2 BDC-(NO2 )2 [H2 BDC-(NO2 )2 = 2,5-dinitro-1,4-benzenedicarboxylic acid] ligand and benzoic acid with a molar ratio of 1 : 1 : 10 in DMF (DMF = N,N-dimethylformamide) at 130 °C for 24 h...
February 28, 2018: Analyst
Dario Fai, Carlotta Fai, Nicoletta Cassano, Gino A Vena
No abstract text is available yet for this article.
February 26, 2018: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
Franco Nicolas Nazar, Emiliano Ariel Videla, Maria Emilia Fernandez, Maria Carla Labaque, Raul Hector Marin
Avian require comfortable temperatures for optimal development and heat stress is a high concern in warm weather countries. We aimed to assess the dynamics of immunoendocrine and biochemical variables responses of birds exposed to a heat stressor applied during daylight hours, during the chronic stress and the recovery periods. We hypothesize that variables involved in the birds response will be differentially and gradually modified during those periods. Female quail (n = 210) were housed in six rearing boxes...
February 25, 2018: Stress: the International Journal on the Biology of Stress
Roberto Brito, Rolando Gelabert, Luís Enrique Amador del Ángel, Ángel Alderete, Emma Guevara
The pink shrimp, Farfantepenaeus duorarum is an important commercial species in the Gulf of Mexico, which supports significant commercial fisheries near Dry Tortugas, in Southern Florida and in Campeche Sound, Southern Gulf of Mexico. There is information about the nictemeral behavior of the pink shrimp related to sunset, what is crucial to more accurate estimation of shrimp population biomass, and to assess the potential of this resource and its proper management. To contribute to the knowledge and the population dynamics of the species, shrimp surveys were conducted in a nursery area near “El Cayo” in the Northeastern part of Terminos Lagoon, Mexico during October 2010...
March 2017: Revista de Biología Tropical
Y V Niella, L A G Duarte, V R Bandeira, O Crespo, D Beare, F H V Hazin
The predation of cookie-cutter sharks Isistius spp. upon the early life stages of yellowfin tuna Thunnus albacares, skipjack tuna Katsuwonus pelamis and little tunny Euthynnus alletteratus are described. New evidence suggesting a connection between commercial fishing and predation by Isistius sp. is presented, with these sharks biting tunas hooked in surface waters during daylight. The healing patterns of the wounds made by the sharks are described in detail and, although such damage is known to negatively influence market price elsewhere, it is not the case on the south-east Brazilian coast...
February 21, 2018: Journal of Fish Biology
R Manfredini, F Fabbian, A De Giorgi, B Zucchi, R Cappadona, F Signani, N Katsiki, D P Mikhailidis
Transitions into and out of Daylight Saving Time (DST) may disrupt circadian rhythms and lead to sleep disturbance and deprivation. A first report observed an association between DST and acute myocardial infarction (AMI), especially after the spring shift and in women. We tried to identify and evaluate the possible association between DST and AMI, using the MEDLINE, EMBASE and Google Scholar electronic database (years 2009-2016), with regards to the searching terms 'daylight saving time', 'daylight saving time' plus 'gender', and 'daylight saving time' plus 'acute myocardial infarction'...
February 2018: European Review for Medical and Pharmacological Sciences
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