Read by QxMD icon Read

space research

Roger Johansson, Franziska Oren, Kenneth Holmqvist
When recalling something you have previously read, to what degree will such episodic remembering activate a situation model of described events versus a memory representation of the text itself? The present study was designed to address this question by recording eye movements of participants who recalled previously read texts while looking at a blank screen. An accumulating body of research has demonstrated that spontaneous eye movements occur during episodic memory retrieval and that fixation locations from such gaze patterns to a large degree overlap with the visuospatial layout of the recalled information...
February 19, 2018: Cognition
Di-Ming Chen, Chun-Xiao Sun, Nan-Nan Zhang, Huan-Huan Si, Chun-Sen Liu, Miao Du
As a modulatable class of porous crystalline materials, metal-organic frameworks (MOFs) have gained intensive research attention in the domain of gas storage and separation. In this study, we report on the synthesis and gas adsorption properties of two robust MOFs with the general formula [Co3 (μ3 -OH)(cpt)3 Co3 (μ3 -OH)(L)3 (H2 O)9 ](NO3 )4 (guests)n [L = 3-amino-1,2,4-triazole (1) and 3,5-diamino-1,2,4-triazole (2); Hcpt = 4-(4-carboxyphenyl)-1,2,4-triazole], which show the same pacs topology. Both MOFs are isostructural to each other and show MIL-88-type frameworks whose pore spaces are partitioned by different functionlized trinuclear 1,2,4-triazolate-based clusters...
February 22, 2018: Inorganic Chemistry
Huan Wang, Guijin Wang, Xianting Li
In this paper, a high-performance color sequence particle streak velocimetry (CSPSV) technique is proposed to measure the air velocity in a large three-dimensional (3D) space. Based on the basic principle of CSPSV, a new color sequence illumination pattern is designed to mark seeding bubbles for better imaging performance. Synchronized with the illumination system, cameras record the targets' paths at the start, middle, and end points with different color information more clearly. Thus, a rectification-based stereo corresponding algorithm is presented to reconstruct the 3D trajectory of the bubbles...
February 20, 2018: Applied Optics
Kellen Mrkva, Mark Travers, Leaf Van Boven
Why do some events feel "like yesterday" whereas others feel "ages away"? Past research has identified cues that influence people's estimates of distance in units such as how many miles or days away events are from the self. However, what makes events feel psychologically close or distant? We examine the hypothesis that increased simulational fluency, the ease with which people mentally imagine events, makes events feel psychologically close. Simulational fluency was associated with feelings that multiple past and future holidays were psychologically close (Studies 1a and 1b)...
March 2018: Journal of Experimental Psychology. General
Katie Wiggins-Dohlvik, Binu Tharakan
The management of burn patients is an extremely complex and clinically challenging for patient care. Aside from the increasing reports of burn injury and morbidity and mortality directly related to it, the pathobiology of burn trauma is not clearly understood. The rat model of burn trauma described here is currently used in research laboratories to study various aspects of burn injury, including vascular dysfunctions. This model demonstrates the infliction of thermal injury in Sprague-Dawley rats using a well-established boiled water approach...
2018: Methods in Molecular Biology
Moshe Sipper, Weixuan Fu, Karuna Ahuja, Jason H Moore
Evolutionary computation (EC) has been widely applied to biological and biomedical data. The practice of EC involves the tuning of many parameters, such as population size, generation count, selection size, and crossover and mutation rates. Through an extensive series of experiments over multiple evolutionary algorithm implementations and 25 problems we show that parameter space tends to be rife with viable parameters, at least for the problems studied herein. We discuss the implications of this finding in practice for the researcher employing EC...
2018: BioData Mining
Yasmin A M Hassen, Maximilian J Johnston, Pritam Singh, Philip H Pucher, Ara Darzi
OBJECTIVE: The aim of this study was to prioritize key factors contributing to safety on the surgical ward BACKGROUND:: There is a variation in the quality and safety of postoperative care between institutions. These variations may be attributed to a combination of process-related issues and structural factors. The aim of this study is to reach a consensus, by means of Delphi methodology, on the most influential of these components that may determine safety in this environment. METHODS: The Delphi questionnaire was delivered via an online questionnaire platform...
February 20, 2018: Annals of Surgery
Joshua D Hutcheson, Elena Aikawa
PURPOSE OF REVIEW: Extracellular vesicles have emerged as one of the most important means through which cells interact with each other and the extracellular environment, but extracellular vesicle research remains challenging due to their small size, limited amount of material required for traditional molecular biology assays and inconsistency in the methods of their isolation. The advent of new technologies and standards in the field, however, have led to increased mechanistic insight into extracellular vesicle function...
February 19, 2018: Current Opinion in Cardiology
Paul Jones
Sociological analysis has done much to illuminate the architectural contexts in which social life takes place. Research on care environments suggests that the built environment should not be understood as a passive backdrop to healthcare, but rather that care is conditioned by the architecture in which it happens. This article argues for the importance of going beyond the hospital walls to include the politics that underwrite the design and construction of hospital buildings. The article assesses the case of the yet-to-be-realised Liverpool Royal University Hospital, and the private finance initiative (PFI) funding that underpins the scheme, which is suggested as a salient 'external' context for understanding architecture's role in the provision of healthcare of many kinds for many years to come...
February 2018: Sociology of Health & Illness
Christina Buse, Daryl Martin, Sarah Nettleton
'Materialities of care' is outlined as a heuristic device for making visible the mundane and often unnoticed aspects of material culture within health and social care contexts, and exploring interrelations between materials and care in practice. Three analytic strands inherent to the concept are delineated: spatialities of care, temporalities of care and practices of care. These interconnecting themes span the articles in this special issue. The articles explore material practice across a range of clinical and non-clinical spaces, including hospitals, hospices, care homes, museums, domestic spaces, and community spaces such as shops and tenement stairwells...
February 2018: Sociology of Health & Illness
Alyssa J Badgley, Ellen M Jesmok, David R Foran
Previous research has revealed the potential of soil bacterial profiling for forensic purposes; however, investigators have not thoroughly examined fluctuations in microbial profiles from soil aged on evidence. In this research, soils collected from multiple habitats were placed on evidence items and sampled over time, and then bacterial profiles were generated via next-generation sequencing of the 16S rRNA locus. Bacterial abundance charts and nonmetric multidimensional scaling plots provided visual representation of bacterial profiles temporally, while supervised classification was used to statistically associate evidence to a source...
February 21, 2018: Journal of Forensic Sciences
Antje Gimpel, Vanessa Stelzenmüller, Sandra Töpsch, Ibon Galparsoro, Matthew Gubbins, David Miller, Arantza Murillas, Alexander G Murray, Kemal Pınarbaşı, Guillem Roca, Robert Watret
The increasing demand for protein from aquaculture will trigger a global expansion of the sector in coastal and offshore waters. While contributing to food security, potential conflicts with other traditional activities such as fisheries or tourism are inevitable, thus calling for decision-support tools to assess aquaculture planning scenarios in a multi-use context. Here we introduce the AquaSpace tool, one of the first Geographic Information System (GIS)-based planning tools empowering an integrated assessment and mapping of 30 indicators reflecting economic, environmental, inter-sectorial and socio-cultural risks and opportunities for proposed aquaculture systems in a marine environment...
February 18, 2018: Science of the Total Environment
Huaqing Huang, Kyung-Hwan Jin, Shunhong Zhang, Feng Liu
Two-dimensional (2D) electrides are layered ionic crystals in which anionic electrons are confined in the interlayer space. Here we report a discovery of nontrivial Z2 topology in the electronic structures of 2D electride Y2 C. Based on first-principles calculations, we found a topological Z2 invariant of (1;111) for the bulk band and topologically protected surface states in the surfaces of Y2 C, signifying its nontrivial electronic topology. We suggest a spin-resolved angle-resolved photoemission spectroscopy (ARPES) measurement to detect the unique helical spin texture of the spin-polarized topological surface state, which will provide characteristic evidence for the nontrivial electronic topology of Y2 C...
February 20, 2018: Nano Letters
Daniel C Adelman, Joseph Murray, Tsung-Teh Wu, Markku Mäki, Peter H Green, Ciarán P Kelly
Small intestinal histologic abnormalities in celiac disease include atrophy of the intestinal villi, hypertrophy of the crypts and lymphocytic infiltration of intraepithelial spaces and lamina propria. These findings are central to diagnosis and their severity and change over time are valuable to monitor disease course and response to therapy. Subjective methods to grade celiac disease histological severity include the Marsh-Oberhuber and Corazza-Villanacci systems. Quantitative histology uses villus height (Vh), crypt depth (Cd), and intra-epithelial lymphocyte count (per 100 enterocytes) to provide objective measures of histologic changes including Vh:Cd ratio...
February 20, 2018: American Journal of Gastroenterology
D Leadbeatter, A Bell
INTRODUCTION: Within higher education, there is increasing recognition that understanding the ways students experience the educational environment is critical to developing programmes that can educate our future professionals. There is a small body of literature about how students experience the dental educational environment; however, none that adopts a qualitative phenomenographic approach. This study aims to contribute to our understanding by asking what is the variation in the ways dental students experience their curriculum? METHODS: This study uses a phenomenographic methodology...
February 20, 2018: European Journal of Dental Education: Official Journal of the Association for Dental Education in Europe
Jin Zhu, Yi Wang, Kapil Pant, Peter M Suh, Martin J Brenner
This paper presents a model order reduction framework to construct linear parameter-varying reduced-order models of flexible aircraft for aeroservoelasticity analysis and control synthesis in broad two-dimensional flight parameter space. Genetic algorithms are used to automatically determine physical states for reduction and to generate reduced-order models at grid points within parameter space while minimizing the trial-and-error process. In addition, balanced truncation for unstable systems is used in conjunction with the congruence transformation technique to achieve locally optimal realization and "weak" fulfillment of state consistency across the entire parameter space...
July 2017: Journal of Aircraft
Shan Huang, Yu Liang, Jianguo Cui, Jiangning Xie, Yi Liu, Baoqing Hu, Qi Xiao
Steroidal derivatives have attracted tremendous attentions in biological and biomedical areas, due to their variety biological activities. The investigation of structural influences helps in understanding their biological activities. The interactions of steroidal derivatives with DNA may play important roles in biological activities, however only a few investigations were reported on this issue. Herein, the structural influences of three steroidal derivatives were investigated based on their binding interactions with d(GGGT)4 G-quadruplex aptamer by spectroscopic approaches, nuclear magnetic resonance (NMR), electrochemical methods, and molecular modeling techniques...
February 16, 2018: Steroids
Arif Gulzar, Jiating Xu, Liangge Xu, Piaoping Yang, Fei He, Dan Yang, Guanghui An, Mohd Bismillah Ansari
The disulfide bond (-S-S-) is an enormously valuable functional group in a variety of chemical and biological agents that display effective reactivity or biological activities (e.g., antitumor activities). The disulfide bonds prevalent in proteins are somewhat oxidizing in the extracellular space; however, such disulfide bonds can rarely be found inside cells because of disulfide cleavage reactions facilitated by abundant free cellular thiols, including glutathione (GSH), which is the most important common thiol-containing small molecule...
February 19, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
Aaron Wyllie, Bernadette J Saunders
It is frequently asserted that pressures to assess and manage risk have eroded the therapeutic, rights-based foundation of the human services profession. Some argue that human service workers operate in a culture of fear in which self-protection and blame avoidance, rather than clients' needs, primarily drive decision-making. In the field of Adult Guardianship, it has been suggested that organisational risk avoidance may be motivating applications for substitute decision-makers, unnecessarily curtailing clients' rights and freedoms...
February 19, 2018: Health & Social Care in the Community
Angela Trovato Salinaro, Manuela Pennisi, Rosanna Di Paola, Maria Scuto, Rosalia Crupi, Maria Teresa Cambria, Maria Laura Ontario, Mario Tomasello, Maurizio Uva, Luigi Maiolino, Edward J Calabrese, Salvatore Cuzzocrea, Vittorio Calabrese
Human life develops and expands not only in time and space, but also in the retrograde permanent recollection and interweaving of memories. Therefore, individual human identity depends fully on a proper access to the autobiographical memory. Such access is hindered or lost under pathological conditions such as Alzheimer's disease, including recently associated oxidant pathologies, such as ocular neural degeneration occurring in glaucoma or neurosensorial degeneration occurring in Menière's disease. Oxidative stress and altered antioxidant systems have been suggested to play a role in the aetiology of major neurodegenerative disorders, and altered expression of genes sensing oxidative stress, as well as decreased cellular stress response mechanisms could synergistically contribute to the course of these oxidant disorders...
2018: Immunity & Ageing: I & A
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"