keyword
MENU ▼
Read by QxMD icon Read
search

Mode of transport

keyword
https://www.readbyqxmd.com/read/28088011/particulates-and-noise-exposure-during-bicycle-bus-and-car-commuting-a-study-in-three-european-cities
#1
Enembe O Okokon, Tarja Yli-Tuomi, Anu W Turunen, Pekka Taimisto, Arto Pennanen, Ilias Vouitsis, Zissis Samaras, Marita Voogt, Menno Keuken, Timo Lanki
BACKGROUND: In order to curb traffic-related air pollution and its impact on the physical environment, contemporary city commuters are encouraged to shift from private car use to active or public transport modes. However, personal exposures to particulate matter (PM), black carbon and noise during commuting may be substantial. Therefore, studies comparing exposures during recommended modes of transport versus car trips are needed. METHODS: We measured personal exposure to various-sized particulates, soot, and noise during commuting by bicycle, bus and car in three European cities: Helsinki in Finland, Rotterdam in the Netherlands and Thessaloniki in Greece using portable monitoring devices...
January 11, 2017: Environmental Research
https://www.readbyqxmd.com/read/28086964/anti-%C3%AE-synuclein-immunotherapy-reduces-%C3%AE-synuclein-propagation-in-the-axon-and-degeneration-in-a-combined-viral-vector-and-transgenic-model-of-synucleinopathy
#2
Brian Spencer, Elvira Valera, Edward Rockenstein, Cassia Overk, Michael Mante, Anthony Adame, Wagner Zago, Peter Seubert, Robin Barbour, Dale Schenk, Dora Games, Robert A Rissman, Eliezer Masliah
Neurodegenerative disorders such as Parkinson's Disease (PD), PD dementia (PDD) and Dementia with Lewy bodies (DLB) are characterized by progressive accumulation of α-synuclein (α-syn) in neurons. Recent studies have proposed that neuron-to-neuron propagation of α-syn plays a role in the pathogenesis of these disorders. We have previously shown that antibodies against the C-terminus of α-syn reduce the intra-neuronal accumulation of α-syn and related deficits in transgenic models of synucleinopathy, probably by abrogating the axonal transport and accumulation of α-syn in in vivo models...
January 13, 2017: Acta Neuropathologica Communications
https://www.readbyqxmd.com/read/28086893/seasonal-variation-in-geographical-access-to-maternal-health-services-in-regions-of-southern-mozambique
#3
Prestige Tatenda Makanga, Nadine Schuurman, Charfudin Sacoor, Helena Edith Boene, Faustino Vilanculo, Marianne Vidler, Laura Magee, Peter von Dadelszen, Esperança Sevene, Khátia Munguambe, Tabassum Firoz
BACKGROUND: Geographic proximity to health facilities is a known determinant of access to maternal care. Methods of quantifying geographical access to care have largely ignored the impact of precipitation and flooding. Further, travel has largely been imagined as unimodal where one transport mode is used for entire journeys to seek care. This study proposes a new approach for modeling potential spatio-temporal access by evaluating the impact of precipitation and floods on access to maternal health services using multiple transport modes, in southern Mozambique...
January 13, 2017: International Journal of Health Geographics
https://www.readbyqxmd.com/read/28077391/acclimation-to-hypoxia-increases-carbohydrate-use-during-exercise-in-high-altitude-deer-mice
#4
Daphne S Lau, Alex D Connaty, Sajeni Mahalingam, Nastashya Wall, Zachary A Cheviron, Jay F Storz, Graham R Scott, Grant B McClelland
The low oxygen experienced at high altitude is a significant challenge to effective aerobic locomotion, as it requires sustained tissue oxygen delivery in addition to the appropriate allocation of metabolic substrates. Here we test whether high- and low-altitude deer mice (Peromyscus maniculatus) have evolved different acclimation responses to hypoxia with respect to muscle metabolism and fuel use during submaximal exercise. Using F1-generation high- and low-altitude deer mice that were born and raised in common conditions, we assessed 1) fuel use during exercise, 2) metabolic enzyme activities, and 3) gene expression for key transporters and enzymes in the gastrocnemius...
January 11, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28075334/spin-and-valley-dependent-electron-transport-through-arrays-of-ferromagnet-on-monolayer-mos-sub-2-sub
#5
Xue-Jun Qiu, Zhen-Zhou Cao, Yan-Fu Cheng, Chaochao Qin
We theoretically study ballistic transport of Dirac fermions in MoS<sub>2</sub> junction through arrays of barriers, of width L , in the presence of a tunable potential of height U and an exchange field h .The charge conductance as functions of U and h , exhibits more conspicuous and sharpened oscillation as the number of barriers increase, due to the contribution of evanescent modes near the edges of the extremum conductance which are exponentially suppressed or enhanced. Furthermore, we found the valley-resolved conductance exhibits a similar oscillating behavior as the charge conductance for multiple barriers, but with inverse oscillatory phases for G<sub>K</sub> and G<sub>K'</sub>, accordingly, a high-efficiency fully valley polarized device is proposed in our system...
January 11, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28073446/harmful-algal-bloom-forecast-system-for-sw-ireland-part-i-description-and-validation-of-an-operational-forecasting-model
#6
Tomasz Dabrowski, Kieran Lyons, Glenn Nolan, Alan Berry, Caroline Cusack, Joe Silke
A 3D primitive equation coastal ocean model for southwest Ireland, called the Bantry Bay model, was developed and implemented operationally. Validated model outputs have multiple uses. One of the incentives to develop the model was to explore the possible transport pathways that carry harmful algae blooms (HAB) into Bantry Bay. The model is nested offline in a regional North East Atlantic operational model. Surface forcing is taken from the half-degree Global Forecasting System, available at three-hourly intervals...
March 2016: Harmful Algae
https://www.readbyqxmd.com/read/28073274/quantum-dots-embedded-in-graphene-nanoribbons-by-chemical-substitution
#7
Eduard Carbonell-Sanromà, Pedro Brandimarte, Richard Balog, Martina Corso, Shigeki Kawai, Aran Garcia-Lekue, Shohei Saito, Shigehiro Yamaguchi, Ernst Meyer, Daniel Sánchez-Portal, Jose Ignacio Pascual
Bottom-up chemical reactions of selected molecular precursors on a gold surface can produce high quality graphene nanoribbons (GNRs). Here, we report on the formation of quantum dots embedded in an armchair GNR by substitutional inclusion of pairs of boron atoms into the GNR backbone. The boron inclusion is achieved through the addition of a small amount of boron substituted precursors during the formation of pristine GNRs. In the pristine region between two boron pairs, the nanoribbons show a discretization of their valence band into confined modes compatible with a Fabry-Perot resonator...
January 11, 2017: Nano Letters
https://www.readbyqxmd.com/read/28070705/enzymatic-activation-of-double-targeted-5-o-l-valyl-decitabine-prodrug-by-biphenyl-hydrolase-like-protein-and-its-molecular-design-basis
#8
Wenhui Tao, Dongyang Zhao, Mengchi Sun, Meng Li, Xiangyu Zhang, Zhonggui He, Yinghua Sun, Jin Sun
A primary focus of this research was to explore the activation process and mechanism of decitabine (5-aza-2'-deoxycytidine, DAC) prodrug. Recently, it has been reported that biphenyl hydrolase-like protein (BPHL) can play an important role in the activation of some amino acid nucleoside prodrugs with a general preference for hydrophobic amino acids and 5'-esters. Therefore, we put forward a bold hypothesis that this novel enzyme may be primarily responsible for the activation process of DAC prodrug as well...
January 9, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28070331/effects-of-bacillus-subtilis-csl2-on-the-composition-and-functional-diversity-of-the-faecal-microbiota-of-broiler-chickens-challenged-with-salmonella-gallinarum
#9
Ju Kyoung Oh, Edward Alain B Pajarillo, Jong Pyo Chae, In Ho Kim, Dong Soo Yang, Dae-Kyung Kang
BACKGROUND: The chicken gastrointestinal tract contains a diverse microbiota whose composition and structure play important roles in gut functionality. In this study, microbial shifts resulting from feed supplementation with Bacillus subtilis CSL2 were evaluated in broilers challenged and unchallenged with Salmonella Gallinarum. To analyse bacterial community composition and functionality, 454 GS-FLX pyrosequencing of 16S rRNA gene amplicons was performed. RESULTS: The Quantitative Insights into Microbial Ecology (QIIME) pipeline was used to analyse changes in the faecal microbiota over a 24-h period...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28069941/uranium-iv-adsorption-by-natural-organic-matter-in-anoxic-sediments
#10
Sharon E Bone, James J Dynes, John Cliff, John R Bargar
Uranium is an important carbon-free fuel source and environmental contaminant that accumulates in the tetravalent state, U(IV), in anoxic sediments, such as ore deposits, marine basins, and contaminated aquifers. However, little is known about the speciation of U(IV) in low-temperature geochemical environments, inhibiting the development of a conceptual model of U behavior. Until recently, U(IV) was assumed to exist predominantly as the sparingly soluble mineral uraninite (UO2+x) in anoxic sediments; however, studies now show that this is not often the case...
January 9, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28069223/sustained-release-formulations-of-citronella-oil-nanoemulsion-using-cavitational-techniques
#11
Naveen Agrawal, Ganesh L Maddikeri, Aniruddha B Pandit
Nanoemulsion synthesis has proven to be an effective way for transportation of immobile, insoluble bioactive compounds. Citronella Oil (lemongrass oil), a natural plant extract, can be used as a mosquito repellent and has less harmful effects compared to its available market counterpart DEET (N, N-Diethyl-meta-toluamide). Nanoemulsion of citronella oil in water was prepared using cavitation-assisted techniques while investigating the effect of system parameters like HLB (Hydrophilic Lipophilic Balance), surfactant concentration, input energy density and mode of power input on emulsion quality...
May 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28067441/a-synthetic-hybrid-molecule-for-the-selective-removal-of-human-pluripotent-stem-cells-from-cell-mixtures
#12
Di Mao, Shin Ando, Shin-Ichi Sato, Ying Qin, Nao Hirata, Yousuke Katsuda, Eihachiro Kawase, Ting-Fang Kuo, Itsunari Minami, Yuji Shiba, Kazumitsu Ueda, Norio Nakatsuji, Motonari Uesugi
A major hurdle in stem cell therapy is the tumorigenic risk of residual undifferentiated stem cells. This report describes the design and evaluation of synthetic hybrid molecules that efficiently reduce the number of human induced pluripotent stem cells (hiPSCs) in cell mixtures. The design takes advantage of Kyoto probe 1 (KP-1), a fluorescent chemical probe for hiPSCs, and clinically used anticancer drugs. Among the KP-1-drug conjugates we synthesized, we found an exceptionally selective, chemically tractable molecule that induced the death of hiPSCs...
January 9, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28067427/on-controlling-the-flow-behavior-driven-by-induction-electrohydrodynamics-in-microfluidic-channels
#13
Yanbo Li, Yukun Ren, Weiyu Liu, Xiaoming Chen, Ye Tao, Hongyuan Jiang
In this study, we develop a nondimensional physical model to demonstrate fluid flow at the micrometer dimension driven by traveling-wave induction electrohydrodynamics (EHD) through direct numerical simulation. In order to realize an enhancement in the pump flow rate as well as a flexible adjustment of anisotropy of flow behavior generated by induction EHD in microchannels, while not adding the risk of causing dielectric breakdown of working solution and material for insulation, a pair of synchronized traveling-wave voltage signals are imposed on double-sided electrode arrays that are mounted on the top and bottom insulating substrate, respectively...
January 9, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28066915/crystallographic-analysis-of-murine-p24%C3%AE-2-golgi-dynamics-gold-domain
#14
Masamichi Nagae, Dorothee Liebschner, Yusuke Yamada, Kana Morita-Matsumoto, Naohiro Matsugaki, Toshiya Senda, Morihisa Fujita, Taroh Kinoshita, Yoshiki Yamaguchi
The p24 family proteins form homo- and hetero-oligomeric complexes for efficient transport of cargo proteins from the endoplasmic reticulum to the Golgi apparatus. It consists of four subfamilies (p24α, p24β, p24γ and p24δ). p24γ2 plays crucial roles in the selective transport of glycosylphosphatidylinositol-anchored proteins. Here we determined the crystal structure of mouse p24γ2 Golgi dynamics (GOLD) domain at 2.8 Å resolution by the single anomalous diffraction method using intrinsic sulfur atoms...
January 9, 2017: Proteins
https://www.readbyqxmd.com/read/28062040/studying-the-mechanochemistry-of-processive-cytoskeletal-motors-with-an-optical-trap
#15
V Belyy, A Yildiz
Cytoskeletal motors utilize the energy stored in ATP to generate linear motion along rigid filaments. Because their enzymatic cycles are tightly coupled to the production of force and forward movement, the optical-trapping technique is uniquely suited for studying their mechanochemical cycle. Here, we discuss the practical aspects of optical trapping in connection with single-motor assays and describe three distinct experimental modes (fixed-trap, force feedback, and square wave) that are typically used to investigate the enzymatic and biophysical properties of cytoskeletal motors...
2017: Methods in Enzymology
https://www.readbyqxmd.com/read/28059145/a-markov-state-based-quantitative-kinetic-model-of-sodium-release-from-the-dopamine-transporter
#16
Asghar M Razavi, George Khelashvili, Harel Weinstein
The dopamine transporter (DAT) belongs to the neurotransmitter:sodium symporter (NSS) family of membrane proteins that are responsible for reuptake of neurotransmitters from the synaptic cleft to terminate a neuronal signal and enable subsequent neurotransmitter release from the presynaptic neuron. The release of one sodium ion from the crystallographically determined sodium binding site Na2 had been identified as an initial step in the transport cycle which prepares the transporter for substrate translocation by stabilizing an inward-open conformation...
January 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28056041/a-model-for-the-stop-planning-and-timetables-of-customized-buses
#17
Jihui Ma, Yanqing Zhao, Yang Yang, Tao Liu, Wei Guan, Jiao Wang, Cuiying Song
Customized buses (CBs) are a new mode of public transportation and an important part of diversified public transportation, providing advanced, attractive and user-led service. The operational activity of a CB is planned by aggregating space-time demand and similar passenger travel demands. Based on an analysis of domestic and international research and the current development of CBs in China and considering passenger travel data, this paper studies the problems associated with the operation of CBs, such as stop selection, line planning and timetables, and establishes a model for the stop planning and timetables of CBs...
2017: PloS One
https://www.readbyqxmd.com/read/28054936/silicon-and-germanium-nanowire-electronics-physics-of-conventional-and-unconventional-transistors
#18
Walter M Weber, Thomas Mikolajick
Research in the field of electronics of one-dimensional group-IV semiconductor structures has attracted increasing attention over the past 15 years. The exceptional combination of the unique one-dimensional electronic transport properties with the mature material know-how of highly integrated silicon and germanium technology holds the promise of enhancing state-of-the-art electronics. In addition of providing conduction channels that can bring conventional field effect transistors to the uttermost scaling limits, the physics of 1-D group IV nanowires endows new device principles...
January 5, 2017: Reports on Progress in Physics
https://www.readbyqxmd.com/read/28052086/active-mobility-and-environment-a-pilot-qualitative-study-for-the-design-of-a-new-questionnaire
#19
Franck Hess, Paul Salze, Christiane Weber, Thierry Feuillet, Hélène Charreire, Mehdi Menai, Camille Perchoux, Julie-Anne Nazare, Chantal Simon, Jean-Michel Oppert, Christophe Enaux
It is generally accepted that active mobility, mainly walking and cycling, contributes to people's physical and mental health. One of the current challenges is to improve our understanding of this type of behaviour. This study aims to identify factors from the daily-life environment that may be related to active mobility behaviours, in order to design a new questionnaire for a quantitative study of a large adult population. The new questionnaire obtained through this pilot study combines information from interviews with existing questionnaires materials in order to introduce new factors while retaining the factors already assessed...
2017: PloS One
https://www.readbyqxmd.com/read/28051080/observation-of-photonic-anomalous-floquet-topological-insulators
#20
Lukas J Maczewsky, Julia M Zeuner, Stefan Nolte, Alexander Szameit
Topological insulators are a new class of materials that exhibit robust and scatter-free transport along their edges - independently of the fine details of the system and of the edge - due to topological protection. To classify the topological character of two-dimensional systems without additional symmetries, one commonly uses Chern numbers, as their sum computed from all bands below a specific bandgap is equal to the net number of chiral edge modes traversing this gap. However, this is strictly valid only in settings with static Hamiltonians...
January 4, 2017: Nature Communications
keyword
keyword
113670
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"