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https://www.readbyqxmd.com/read/28222124/modelling-the-effects-of-environmental-conditions-on-the-acoustic-occurrence-and-behaviour-of-antarctic-blue-whales
#1
Fannie W Shabangu, Dawit Yemane, Kathleen M Stafford, Paul Ensor, Ken P Findlay
Harvested to perilously low numbers by commercial whaling during the past century, the large scale response of Antarctic blue whales Balaenoptera musculus intermedia to environmental variability is poorly understood. This study uses acoustic data collected from 586 sonobuoys deployed in the austral summers of 1997 through 2009, south of 38°S, coupled with visual observations of blue whales during the IWC SOWER line-transect surveys. The characteristic Z-call and D-call of Antarctic blue whales were detected using an automated detection template and visual verification method...
2017: PloS One
https://www.readbyqxmd.com/read/28220100/season-and-weather-effects-on-travel-related-mood-and-travel-satisfaction
#2
Dick Ettema, Margareta Friman, Lars E Olsson, Tommy Gärling
This study examines the effects of season and weather on mood (valence and activation) and travel satisfaction (measured by the Satisfaction with Travel Scale). Analyses are presented of 562 time-sampled morning commutes to work made by 363 randomly sampled people in three different Swedish cities asking them to use smartphones to report their mood in their home before and directly after the commutes. These reports as well as satisfaction with the commute obtained in summer and winter are linked to weather data and analyzed by means of fixed-effects regression analyses...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28216727/high-altitude-dermatology
#3
Lt Col G K Singh
Approximately, 140 million people worldwide live permanently at high altitudes (HAs) and approximately another 40 million people travel to HA area (HAA) every year for reasons of occupation, sports or recreation. In India, whole of Ladakh region, part of Northwest Kashmir, Northern part of Sikkim and Tenga valley of Arunachal are considered inhabited areas of HAA. The low quantity of oxygen, high exposure of ultraviolet (UV) light, very low humidity, extreme subzero temperature in winter, high wind velocity, make this region difficult for lowlanders as well as for tourists...
January 2017: Indian Journal of Dermatology
https://www.readbyqxmd.com/read/28216245/laminar-airflow-and-surgical-site-infections-the-evidence-is-blowing-in-the-wind
#4
Robert A Weinstein, Marc J M Bonten
No abstract text is available yet for this article.
February 16, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28216031/extreme-air-pollution-with-contaminants-originating-from-the-mining-metallurgical-processes
#5
Snezana M Serbula, Jelena S Milosavljevic, Ana A Radojevic, Jelena V Kalinovic, Tanja S Kalinovic
Levels of SO2 and metals/metalloids in the air near a copper smelter in Bor (Serbia) from 2009 to 2015 were presented in this study. Annual levels of SO2 were constantly above the proposed limit value (LV), at almost all the measuring sites. SO2 concentrations on an annual level measured in different zones in Bor were several times higher compared to the LV in 2011, 2012, 2014 and 2015. Enormously high daily SO2 concentrations measured at the suburban zone (3734μgm(-3)) was 187 times higher than the LV given by the World Health Organization...
February 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28216028/cause-and-predictability-for-the-severe-haze-pollutions-in-downtown-beijing-during-november-december-2015
#6
Ziyin Zhang, Daoyi Gong, Seong-Joong Kim, Rui Mao, Jing Xu, Xiujuan Zhao, Zhiqiang Ma
When severe haze pollutions hit downtown Beijing during period of November-December 2015, Beijing issued the red alert for the heavy pollution for the first time in history. Based on the hourly PM2.5 concentration and meteorological variable records and the ERA-Interim reanalysis data, a series of diagnostic analyses were conducted to explore the possible meteorological causes for the severe haze pollutions. Using the online-coupled WRF-Chem model and GFS data, the predictability of hourly and daily PM2.5 concentration was evaluated...
February 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28215972/wind-turbine-blade-waste-in-2050
#7
Pu Liu, Claire Y Barlow
Wind energy has developed rapidly over the last two decades to become one of the most promising and economically viable sources of renewable energy. Although wind energy is claimed to provide clean renewable energy without any emissions during operation, but it is only one side of the coin. The blades, one of the most important components in the wind turbines, made with composite, are currently regarded as unrecyclable. With the first wave of early commercial wind turbine installations now approaching their end of life, the problem of blade disposal is just beginning to emerge as a significant factor for the future...
February 16, 2017: Waste Management
https://www.readbyqxmd.com/read/28215582/microplastics-in-sea-coastal-zone-lessons-learned-from-the-baltic-amber
#8
REVIEW
Irina Chubarenko, Natalia Stepanova
Baltic amber, adored for its beauty already in Homer's Odyssey (ca. 800 B.C.E), has its material density close to that of wide-spread plastics like polyamide, polystyrene, or acrylic. Migrations of amber stones in the sea and their massive washing ashore have been monitored by Baltic citizens for ages. Based on the collected information, we present the hypothesis on the behaviour of microplastic particles in sea coastal zone. Fresh-to-strong winds generate surface waves, currents and roll-structures, whose joint effect washes ashore from the underwater slope both amber stones and plastics - and carries them back to the sea in a few days...
February 15, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28212732/bcl-2-long-and-winding-path-from-discovery-to-therapeutic-target
#9
REVIEW
Robyn L Schenk, Andreas Strasser, Grant Dewson
In 1988, the BCL-2 protein was found to promote cancer by limiting cell death rather than enhancing proliferation. This discovery set the wheels in motion for an almost 30 year journey involving many international research teams that has recently culminated in the approval for a drug, ABT-199/venetoclax/Venclexta that targets this protein in the treatment of cancer. This review will describe the long and winding path from the discovery of this protein and understanding the fundamental process of apoptosis that BCL-2 and its numerous homologues control, through to its exploitation as a drug target that is set to have significant benefit for cancer patients...
January 15, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28211730/kinetic-turbulence-in-relativistic-plasma-from-thermal-bath-to-nonthermal-continuum
#10
Vladimir Zhdankin, Gregory R Werner, Dmitri A Uzdensky, Mitchell C Begelman
We present results from particle-in-cell simulations of driven turbulence in magnetized, collisionless, and relativistic pair plasmas. We find that the fluctuations are consistent with the classical k_{⊥}^{-5/3} magnetic energy spectrum at fluid scales and a steeper k_{⊥}^{-4} spectrum at sub-Larmor scales, where k_{⊥} is the wave vector perpendicular to the mean field. We demonstrate the development of a nonthermal, power-law particle energy distribution f(E)∼E^{-α}, with an index α that decreases with increasing magnetization and increases with an increasing system size (relative to the characteristic Larmor radius)...
February 3, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28211465/decreasing-trend-in-severe-weather-occurrence-over-china-during-the-past-50-years
#11
Qinghong Zhang, Xiang Ni, Fuqing Zhang
Understanding the trend of localized severe weather under the changing climate is of great significance but remains challenging which is at least partially due to the lack of persistent and homogeneous severe weather observations at climate scales while the detailed physical processes of severe weather cannot be resolved in global climate models. Based on continuous and coherent severe weather reports from over 500 manned stations, for the first time, this study shows a significant decreasing trend in severe weather occurrence across China during the past five decades...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28209478/algal-bloom-response-and-risk-management-on-site-response-tools
#12
Susan B Watson, Arthur Zastepa, Gregory L Boyer, Eric Matthews
Harmful algal blooms caused by cyanobacteria can present a risk to the safety of drinking- and recreational waters and beachfronts through the production of toxins, particularly microcystin, which are highly resilient to degradation. These blooms are difficult to predict, vary in appearance and toxicity, and can show significant spatial heterogeneity: wind- and current-borne scums can produce an order of magnitude range in toxin levels along shorelines. The growing demand for reliable, cost-effective and rapid methods to detect toxins in bloom material and reduce the risk of public exposure cannot be met by most analytical lab turnaround times...
February 13, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28208773/wind-tunnel-measurements-for-flutter-of-a-long-afterbody-bridge-deck
#13
Zeng-Shun Chen, Cheng Zhang, Xu Wang, Cun-Ming Ma
Bridges are an important component of transportation. Flutter is a self-excited, large amplitude vibration, which may lead to collapse of bridges. It must be understood and avoided. This paper takes the Jianghai Channel Bridge, which is a significant part of the Hong Kong-Zhuhai-Macao Bridge, as an example to investigate the flutter of the bridge deck. Firstly, aerodynamic force models for flutter of bridges were introduced. Then, wind tunnel tests of the bridge deck during the construction and the operation stages, under different wind attack angles and wind velocities, were carried out using a high frequency base balance (HFBB) system and laser displacement sensors...
February 9, 2017: Sensors
https://www.readbyqxmd.com/read/28208603/an-artificial-turf-based-surrogate-surface-collector-for-the-direct-measurement-of-atmospheric-mercury-dry-deposition
#14
Naima L Hall, Joseph Timothy Dvonch, Frank J Marsik, James A Barres, Matthew S Landis
This paper describes the development of a new artificial turf surrogate surface (ATSS) sampler for use in the measurement of mercury (Hg) dry deposition. In contrast to many existing surrogate surface designs, the ATSS utilizes a three-dimensional deposition surface that may more closely mimic the physical structure of many natural surfaces than traditional flat surrogate surface designs (water, filter, greased Mylar film). The ATSS has been designed to overcome several complicating factors that can impact the integrity of samples with other direct measurement approaches by providing a passive system which can be deployed for both short and extended periods of time (days to weeks), and is not contaminated by precipitation and/or invalidated by strong winds...
February 10, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28208430/precursor-for-wind-reversal-in-a-square-rayleigh-b%C3%A3-nard-cell
#15
Bérengère Podvin, Anne Sergent
We investigate large-scale circulation reversals in a two-dimensional Rayleigh-Bénard cell using a proper orthogonal decomposition (POD)-based, five-mode model. The Rayleigh number considered is Ra=5×10^{7} and the Prandtl number is Pr=4.3. A precursor event, corresponding to the action of a mode L_{*} which disconnects the core region from the boundary layers before the onset of the reversal, is identified in the simulation. The five-mode model predicts correctly the behavior of the POD modes observed in the simulation, and in particular that of mode L_{*}...
January 2017: Physical Review. E
https://www.readbyqxmd.com/read/28207853/numerical-simulations-of-atmospheric-dispersion-of-iodine-131-by-different-models
#16
Ádám Leelőssy, Róbert Mészáros, Attila Kovács, István Lagzi, Tibor Kovács
Nowadays, several dispersion models are available to simulate the transport processes of air pollutants and toxic substances including radionuclides in the atmosphere. Reliability of atmospheric transport models has been demonstrated in several recent cases from local to global scale; however, very few actual emission data are available to evaluate model results in real-life cases. In this study, the atmospheric dispersion of 131I emitted to the atmosphere during an industrial process was simulated with different models, namely the WRF-Chem Eulerian online coupled model and the HYSPLIT and the RAPTOR Lagrangian models...
2017: PloS One
https://www.readbyqxmd.com/read/28207631/laparoscopic-donor-hepatectomy-the-long-and-winding-road
#17
Olivier Soubrane
No abstract text is available yet for this article.
February 15, 2017: Transplantation
https://www.readbyqxmd.com/read/28204477/winding-paths-to-simplicity-genome-evolution-in-facultative-insect-symbionts
#18
Wen-Sui Lo, Ya-Yi Huang, Chih-Horng Kuo
No abstract text is available yet for this article.
November 1, 2016: FEMS Microbiology Reviews
https://www.readbyqxmd.com/read/28202989/world-s-largest-wind-mapping-project-spins-up-in-portugal
#19
Alexandra Witze
No abstract text is available yet for this article.
February 14, 2017: Nature
https://www.readbyqxmd.com/read/28202267/large-eddy-simulation-of-reactive-pollutants-in-a-deep-urban-street-canyon-coupling-dynamics-with-o3-nox-voc-chemistry
#20
Jian Zhong, Xiao-Ming Cai, William James Bloss
A large eddy simulation (LES) model coupled with O3-NOx-VOC chemistry is implemented to simulate the coupled effects of emissions, mixing and chemical pre-processing within an idealised deep (aspect ratio = 2) urban street canyon under a weak wind condition. Reactive pollutants exhibit significant spatial variations in the presence of two vertically aligned unsteady vortices formed in the canyon. Comparison of the LES results from two chemical schemes (simple NOx-O3 chemistry and a more comprehensive Reduced Chemical Scheme (RCS) chemical mechanism) shows that the concentrations of NO2 and Ox inside the street canyon are enhanced by approximately 30-40% via OH/HO2 chemistry...
February 12, 2017: Environmental Pollution
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