Read by QxMD icon Read


Adrienne J Bartlett, Amanda M Hedges, Kyna D Intini, Lisa R Brown, France J Maisonneuve, Stacey A Robinson, Patricia L Gillis, Shane R de Solla
Neonicotinoid insecticides are environmentally persistent and highly water-soluble, and thus are prone to leaching into surface waters where they may negatively affect non-target aquatic insects. Most of the research to date has focused on imidacloprid, and few data are available regarding the effects of other neonicotinoids or their proposed replacements (butenolide insecticides). The objective of this study was to assess the toxicity of six neonicotinoids (imidacloprid, thiamethoxam, acetamiprid, clothianidin, thiacloprid, and dinotefuran) and one butenolide (flupyradifurone) to Hexagenia spp...
March 12, 2018: Environmental Pollution
Jocelyn F Hafer, Katherine A Boyer
BACKGROUND: Aging is associated with a loss of mobility and altered gait mechanics. Loss of function and mobility may be due to or exacerbated by low levels of physical activity in the aged. The mechanisms linking age-related changes in physiology, altered mobility and gait may be elucidated by examining movement coordination and coordination variability. RESEARCH QUESTION: The purpose of this study was to examine the impacts of age and habitual physical activity level on segment coordination and coordination variability during gait...
February 26, 2018: Gait & Posture
Alberto Gómez, Manuel Nieto-Díaz, Ángela Del Águila, Enrique Arias
Transparency in science is increasingly a hot topic. Scientists are required to show not only results but also evidence of how they have achieved these results. In experimental studies of spinal cord injury, there are a number of standardized tests, such as the Basso-Beattie-Bresnahan locomotor rating scale for rats and Basso Mouse Scale for mice, which researchers use to study the pathophysiology of spinal cord injury and to evaluate the effects of experimental therapies. Although the standardized data from the Basso-Beattie-Bresnahan locomotor rating scale and the Basso Mouse Scale are particularly suited for storage and sharing in databases, systems of data acquisition and repositories are still lacking...
March 2, 2018: Computers in Biology and Medicine
Claudio Gariazzo, Massimo Stafoggia, Silvia Bruzzone, Armando Pelliccioni, Francesco Forastiere
Use of mobile phones while driving is known to cause crashes with possible fatalities. Different habits of mobile phone use might be distracting forces and display differential impacts on accident risk; the assessment of the relative importance is relevant to implement prevention, mitigation, and control measures. This study aimed to assess the relationship between the use of mobile phones at population level and road crash fatalities in large urban areas. Data on road crashes with fatalities were collected from seven Italian metropolitan areas and matched in time and space with high resolution mobile phone traffic volume data about calls, texts, Internet connections and upload/download data...
March 12, 2018: Accident; Analysis and Prevention
Miguel R Lugo, Bronwyn Lyons, Cristina Lento, Derek J Wilson, A Rod Merrill
Scabin is a mono-ADP-ribosyltransferase enzyme and is a putative virulence factor produced by the plant pathogen, Streptomyces scabies. Previously, crystal structures of Scabin were solved in the presence and absence of substrate analogues and inhibitors. Herein, experimental (hydrogen-deuterium exchange), simulated (molecular dynamics), and theoretical (Gaussian Network Modeling) approaches were systematically applied to study the dynamics of apo-Scabin in the context of a Scabin·NAD+·DNA model. MD simulations revealed that the apo-Scabin solution conformation correlates well with the X-ray crystal structure, beyond the conformation of the exposed, mobile regions...
2018: PloS One
Xiangyu Chang, Jingzhou Shen, Xiaoling Lu, Shuai Huang
The emerging Bicycle Sharing System (BSS) provides a new social microscope that allows us to "photograph" the main aspects of the society and to create a comprehensive picture of human mobility behavior in this new medium. BSS has been deployed in many major cities around the world as a short-distance trip supplement for public transportations and private vehicles. A unique value of the bike flow data generated by these BSSs is to understand the human mobility in a short-distance trip. This understanding of the population on short-distance trip is lacking, limiting our capacity in management and operation of BSSs...
2018: PloS One
Chundong Wang, Likun Zhu, Liangyi Gong, Zhentang Zhao, Lei Yang, Zheli Liu, Xiaochun Cheng
With the development of the Internet-of-Things (IoT), wireless network security has more and more attention paid to it. The Sybil attack is one of the famous wireless attacks that can forge wireless devices to steal information from clients. These forged devices may constantly attack target access points to crush the wireless network. In this paper, we propose a novel Sybil attack detection based on Channel State Information (CSI). This detection algorithm can tell whether the static devices are Sybil attackers by combining a self-adaptive multiple signal classification algorithm with the Received Signal Strength Indicator (RSSI)...
March 15, 2018: Sensors
Xingpo Ma, Xingjian Liu, Junbin Liang, Yin Li, Ran Li, Wenpeng Ma, Chuanda Qi
A novel network paradigm of mobile edge computing, namely TMWSNs (two-tiered mobile wireless sensor networks), has just been proposed by researchers in recent years for its high scalability and robustness. However, only a few works have considered the security of TMWSNs. In fact, the storage nodes, which are located at the upper layer of TMWSNs, are prone to being attacked by the adversaries because they play a key role in bridging both the sensor nodes and the sink, which may lead to the disclosure of all data stored on them as well as some other potentially devastating results...
March 15, 2018: Sensors
Leslee Sprague, Joel M Lee, Brian J Hutzen, Pin-Yi Wang, Chun-Yu Chen, Joe Conner, Lynne Braidwood, Kevin A Cassady, Timothy P Cripe
High Mobility Group Box 1 (HMGB1) is a multifunctional protein that plays various roles in the processes of inflammation, cancer, and other diseases. Many reports document abundant HMGB1 release following infection with oncolytic viruses (OVs). Further, other groups including previous reports from our laboratory highlight the synergistic effects of OVs with chemotherapy drugs. Here, we show that virus-free supernatants have varying cytotoxic potential, and HMGB1 is actively secreted by two established fibroblast cell lines (NIH 3T3 and 3T6-Swiss albino) following HSV1716 infection in vitro...
March 15, 2018: Viruses
Cristina Rodríguez-Seco, Lydia Cabau, Anton Vidal-Ferran, Emilio Palomares
Over hundreds of new organic semiconductor molecules have been synthesized as hole transport materials (HTMs) for perovskite solar cells. However, to date, the well-known N2 , N2 , N2' , N2' , N7 , N7 , N7' , octakis-(4-methoxyphenyl)-9,9-spirobi-[9,9'-spirobi[9 H-fluorene]-2,2',7,7'-tetramine (spiro-OMeTAD) is still the best choice for the best perovskite device performance. Nevertheless, there is a consensus that spiro-OMeTAD by itself is not stable enough for long-term stable devices, and its market price makes its use in large-scale production costly...
March 15, 2018: Accounts of Chemical Research
Giulia Ravasi, Sara Pelucchi, Gaia Buoli Comani, Federico Greni, Raffaella Mariani, Irene Pelloni, Silvia Bombelli, Roberto Perego, Donatella Barisani, Alberto Piperno
OBJECTIVE: During hypoxia hepcidin expression is inhibited to allow iron mobilization to sustain erythropoietic expansion. We analysed molecular mechanisms underlying hypoxia-induced hepcidin inhibition in an in vivo model of acute hypoxia. METHODS: Mice were kept under normal or hypoxic conditions for 6h and 15h and treated with α-PDGF-BB antibody or PDGF-BB receptor inhibitor. Blood, liver, spleen, and bone marrow were collected to extract RNA and protein or to quantify EPO and PDGF-BB...
March 15, 2018: European Journal of Haematology
I Yu Lisitskiy, A M Kiselev, S E Kiselev
Pathological processes in the craniovertebral region (CVR) are usually accompanied by dislocation complications leading to gross neurological disorders. One of the diseases that affect the CVR and lead to atlanto-axial dislocation (AAD) is rheumatoid arthritis. Errors in the diagnosis of rheumatoid disease and in the choice of a treatment approach may cause adverse outcomes. OBJECTIVE: To define the approach for surgical treatment of AAD associated with rheumatoid disease of the CVR, with allowance for the rigidity of deformity...
2018: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
Michael W Deem, Melia Elizabeth Bonomo
Clustered regularly interspaced short palindromic repeats (CRISPR) and CRISPR-associated proteins (Cas) constitute a multi-functional, constantly evolving immune system in bacteria and archaea cells. A heritable, molecular memory is generated of phage, plasmids, or other mobile genetic elements that attempt to attack the cell. This memory is used to recognize and interfere with subsequent invasions from the same genetic elements. This versatile prokaryotic tool has also been used to advance applications in biotechnology...
March 15, 2018: Physical Biology
Emalie Hurkmans, Christophe Matthys, An Bogaerts, Leonie Scheys, Karlien Devloo, Jan Seghers
[This corrects the article DOI: 10.2196/mhealth.7713.].
March 15, 2018: JMIR MHealth and UHealth
Jingxin Zhang, Eike Langbehn, Dennis Krupke, Nicholas Katzakis, Frank Steinicke
Telepresence systems have the potential to overcome limits and distance constraints of the real-world by enabling people to remotely visit and interact with each other. However, current telepresence systems usually lack natural ways of supporting interaction and exploration of remote environments (REs). In particular, single webcams for capturing the RE provide only a limited illusion of spatial presence, and movement control of mobile platforms in today's telepresence systems are often restricted to simple interaction devices...
April 2018: IEEE Transactions on Visualization and Computer Graphics
Pietro Lungaro, Rickard Sjoberg, Alfredo Jose Fanghella Valero, Ashutosh Mittal, Konrad Tollmar
This paper presents a novel approach to content delivery for video streaming services. It exploits information from connected eye-trackers embedded in the next generation of VR Head Mounted Displays (HMDs). The proposed solution aims to deliver high visual quality, in real time, around the users' fixations points while lowering the quality everywhere else. The goal of the proposed approach is to substantially reduce the overall bandwidth requirements for supporting VR video experiences while delivering high levels of user perceived quality...
April 2018: IEEE Transactions on Visualization and Computer Graphics
Bruce Cv Campbell, Mark W Parsons
This review summarizes the current state of knowledge regarding the use of imaging to guide stroke treatment. Brain imaging plays a central role in the diagnosis of stroke and identification of the mechanism of stroke, which is relevant to acute treatment, prognosis, and secondary prevention. The chief potential modalities are computed tomography (CT) and magnetic resonance imaging (MRI). Currently, most imaging occurs in hospital but mobile stroke units have expanded CT brain imaging into the prehospital field...
January 1, 2018: International Journal of Stroke: Official Journal of the International Stroke Society
Nadia Schott, Maike Tietjens
Mobility restriction as a consequence of a fall is a major issue in assisted living facilities. Although many factors are related to falling, little is known about the relationship between falls, social support, falls efficacy, and physical activity. We examined the relationship between falls and the Social-Support-Questionnaire, the Activities-specific Balance Confidence scale, and physical activity simultaneously in 81 older adults (66-94 years) using structural equation modeling (SEM). The SEM model revealed that being older was associated with lower falls efficacy and a higher number of falls...
March 15, 2018: Journal of Aging and Physical Activity
Lilian Roos, Wolfgang Taube, Carolin Tuch, Klaus Michael Frei, Thomas Wyss
PURPOSE: Session rating of perceived exertion (sRPE) is an often used measure to assess athletes' training load. However, little is known which factors could optimize the quality of data collection thereof. The aim of the present study was to investigate the effects of (i) the survey methods and (ii) the time points when sRPE was assessed on the correlation between subjective (sRPE) and objective (heart rate training impulse; TRIMP) assessment of training load. METHODS: In the first part, 45 well-trained subjects (30 men, 15 women) performed 20 running sessions with a heart rate monitor and reported sRPE 30 minutes after training cessation...
March 15, 2018: International Journal of Sports Physiology and Performance
F Camargo, R Schmidt, J D Whalen, R Ding, G Woehl, S Yoshida, J Burgdörfer, F B Dunning, H R Sadeghpour, E Demler, T C Killian
We report spectroscopic observation of Rydberg polarons in an atomic Bose gas. Polarons are created by excitation of Rydberg atoms as impurities in a strontium Bose-Einstein condensate. They are distinguished from previously studied polarons by macroscopic occupation of bound molecular states that arise from scattering of the weakly bound Rydberg electron from ground-state atoms. The absence of a p-wave resonance in the low-energy electron-atom scattering in Sr introduces a universal behavior in the Rydberg spectral line shape and in scaling of the spectral width (narrowing) with the Rydberg principal quantum number, n...
February 23, 2018: Physical Review Letters
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"