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https://www.readbyqxmd.com/read/28329825/socioeconomic-status-and-physical-functioning-a-longitudinal-study-of-older-chinese-people
#1
Lei Yang, Hanna Konttinen, Pekka Martikainen, Karri Silventoinen
Objectives: We aimed to assess the longitudinal associations of socioeconomic status and physical functioning using a large population-based survey data in China. Method: We used four waves of the Chinese Longitudinal Healthy Longevity Survey (2002-2011). Physical functioning was assessed by activities of daily living (ADL) and instrumental activities of daily living (IADL) measures. Socioeconomic status was assessed using educational attainment, occupational status, household income, financial resources, and access to health services...
February 16, 2017: Journals of Gerontology. Series B, Psychological Sciences and Social Sciences
https://www.readbyqxmd.com/read/28329818/elder-fraud-and-financial-exploitation-application-of-routine-activity-theory
#2
Marguerite DeLiema
Background and Objectives: Elder financial exploitation, committed by individuals in positions of trust, and elder fraud, committed by predatory strangers, are two forms of financial victimization that target vulnerable older adults. This study analyzes differences between fraud and financial exploitation victims and tests routine activity theory as a contextual model for victimization. Routine activity theory predicts that criminal opportunities arise when a motivated offender and suitable target meet in the absence of capable guardians...
March 10, 2017: Gerontologist
https://www.readbyqxmd.com/read/28327717/one-step-synthesis-electronic-structure-and-photocatalytic-activity-of-earth-abundant-visible-light-driven-feal2o4
#3
Hui-Ying Mu, Fa-Tang Li, Xing-Tao An, Rui-Hong Liu, Yi-Lei Li, Xin Qian, Yong-Qi Hu
The development of inexpensive visible-light-driven photocatalysts is an important prerequisite for realizing the industrial application of photocatalysis technology. In this paper, an earth-abundant FeAl2O4 photocatalyst is prepared via facile solution combustion synthesis. Density functional theory and the scanning Kelvin probe technique are employed to ascertain the positions of the energy bands and the Fermi level. Phenol is taken as a model pollutant to evaluate the photocatalytic activity of FeAl2O4. The scavenger experiment results, ˙OH-trapping fluorescence technique, and electron spin resonance measurements confirm that the superoxide anion radical is the main active species generated in the photocatalytic process, which also further corroborates the proposed electronic structure of FeAl2O4...
March 22, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28327507/variation-in-older-adult-characteristics-by-residence-type-and-use-of-home-and-community-based-services
#4
Heidi H Ewen, Tiffany R Washington, Kerstin G Emerson, Andrew T Carswell, Matthew Lee Smith
Background: The majority of older adults prefer to remain in their homes, or to "age-in-place." To accomplish this goal, many older adults will rely upon home- and community-based services (HCBS) for support. However, the availability and accessibility of HCBS may differ based on whether the older adult lives in the community or in a senior housing apartment facility. Methods: This paper reports findings from the Pathways to Life Quality study of residential change and stability among seniors in upstate New York...
March 22, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28327174/randomised-controlled-feasibility-study-of-a-school-based-multi-level-intervention-to-increase-physical-activity-and-decrease-sedentary-behaviour-among-vocational-school-students
#5
Nelli Hankonen, Matti T J Heino, Sini-Tuuli Hynynen, Hanna Laine, Vera Araújo-Soares, Falko F Sniehotta, Tommi Vasankari, Reijo Sund, Ari Haukkala
BACKGROUND: No school-based physical activity (PA) interventions among older adolescents have demonstrated long-term effectiveness, and few of them so far have addressed sedentary behaviour (SB). Based on behavioural theories and evidence, we designed a multi-level intervention to increase PA and decrease SB among vocational school students. This study investigates feasibility and acceptability of two main intervention components and research procedures. We also examine uptake of behaviour change techniques (BCTs) by the participants...
March 21, 2017: International Journal of Behavioral Nutrition and Physical Activity
https://www.readbyqxmd.com/read/28326782/synthesis-and-properties-of-triarylhalostibonium-cations
#6
Mengxi Yang, François P Gabbaï
As part of our fundamental interest in the chemistry of main-group Lewis acids, we have decided to target stibonium cations whose Lewis acidity is enhanced by the presence of a halogen substituent directly bound to antimony. Starting from Ph3Sb(OTf)2 (1) and Mes3Sb(OTf)2 (2), we successfully prepared the triflate derivatives Ph3SbF(OTf) (3) and Mes3SbF(OTf) (4). We also synthesized the hexachloroantimonate salt of [Mes3SbCl](+) (6), an analogue of the known [Ph3SbCl][SbCl6] (5). The structures of these complexes have been investigated experimentally as well as computationally using density functional theory methods...
March 22, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28324972/analysis-of-spontaneous-eeg-activity-in-alzheimer-s-disease-using-cross-sample-entropy-and-graph-theory
#7
Carlos Gomez, Jesus Poza, Javier Gomez-Pilar, Alejandro Bachiller, Celia Juan-Cruz, Miguel A Tola-Arribas, Alicia Carreres, Monica Cano, Roberto Hornero
The aim of this pilot study was to analyze spontaneous electroencephalography (EEG) activity in Alzheimer's disease (AD) by means of Cross-Sample Entropy (Cross-SampEn) and two local measures derived from graph theory: clustering coefficient (CC) and characteristic path length (PL). Five minutes of EEG activity were recorded from 37 patients with dementia due to AD and 29 elderly controls. Our results showed that Cross-SampEn values were lower in the AD group than in the control one for all the interactions among EEG channels...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28324955/identifying-important-regions-in-eeg-epilepsy-brain-networks
#8
Nantia D Iakovidou, Manolis Christodoulakis, Eleftherios S Papathanasiou, Savvas S Papacostas, Georgios D Mitsis
The human brain has been called the most complex object in the known universe and in many ways it constitutes the final frontier of science. Lately, the functional connectivity in human brain has been regarded and studied as a complex network using electroencephalography (EEG) signals. This means that the brain is studied as a connected system, where nodes represent different specialized brain regions and links or connections, represent communication pathways between the nodes. It is also fairly established that graph theory provides a variety of measures, methods and tools that can be useful to efficiently model, analyze and study an EEG network...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28324685/monitoring-and-descriptive-analysis-of-radon-in-relation-to-seismic-activity-of-northern-pakistan
#9
Zeeshan Jilani, Tahir Mehmood, Aftab Alam, Muhammad Awais, Talat Iqbal
Earthquakes are one of the major causes of natural disasters and its forecasting is challenging task. Some precursory phenomenon exists in theory in relation to earthquakes occurrence. The emission of radioactive gas named 'radon' before the earthquakes is a potential earthquake precursory candidate. The study aims to monitor and to analyze the radon in relation to seismic activity in Northern Pakistan. For this purpose RTM-2200 has been used to monitor the changes in radon concentration from August 01, 2014 to January 31, 2015 in Northern Pakistan...
March 16, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28324651/line-activity-of-ganglioside-gm1-regulates-raft-size-distribution-in-a-cholesterol-dependent-manner
#10
Timur R Galimzyanov, Anna S Lyushnyak, Veronika V Aleksandrova, Liudmila A Shilova, Ilya I Mikhalyov, Irina M Molotkovskaya, Sergey A Akimov, Oleg V Batishchev
Liquid-ordered lipid domains, also called rafts, are assumed to be important players in different cellular processes, mainly signal transduction and membrane trafficking. They are thicker than the disordered part of the membrane and are thought to form for compensating the hydrophobic mismatch between transmembrane proteins and lipid environment. Despite the existence of such structures in vivo is still an open question, they are observed in model systems of multicomponent lipid bilayers. Moreover, the predictions obtained from model experiments allow explaining different physiological processes possibly involving rafts...
March 21, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28323877/thermal-analysis-during-partial-carbonizing-process-of-rhubarb-moutan-and-burnet
#11
Junnan Ma, Xianglong Meng, Xiaohui Guo, Yaru Lan, Shuosheng Zhang
Control of temperature and duration of partial carbonization for Chinese medicines have been mainly based on experience of the processors. No quantitative methods and parameters are available that can be used to precisely control the temperature and determine the energy changes during the process. In our research, with a simulated atmosphere air condition, the partial carbonization processes of three Chinese herb medicines rhubarb, moutan and burnet were simulated at different heating rates (5, 10 and 20°C • min-1) and analyzed by thermal gravimetric analysis (TGA) to quantify the upper limits of the temperature...
2017: PloS One
https://www.readbyqxmd.com/read/28323846/problems-identified-by-dual-sensory-impaired-older-adults-in-long-term-care-when-using-a-self-management-program-a-qualitative-study
#12
Lieve Roets-Merken, Sytse Zuidema, Myrra Vernooij-Dassen, Marianne Dees, Pieter Hermsen, Gertrudis Kempen, Maud Graff
OBJECTIVE: To gain insights into the problems of dual sensory impaired older adults in long-term care. Insights into these problems are essential for developing adequate policies which address the needs of the increasing population of dual sensory impaired older adults in long-term care. METHODS: A qualitative study was conducted in parallel with a cluster randomized controlled trial. Dual sensory impaired older adults in the intervention group (n = 47, age range 82-98) were invited by a familiar nurse to identify the problems they wanted to address...
2017: PloS One
https://www.readbyqxmd.com/read/28323426/experimental-and-dft-investigations-reveal-the-influence-of-the-outer-coordination-sphere-on-the-vibrational-spectra-of-nickel-substituted-rubredoxin-a-model-hydrogenase-enzyme
#13
Jeffrey W Slater, Sean C Marguet, Sabrina L Cirino, Pearson T Maugeri, Hannah S Shafaat
Nickel-substituted rubredoxin (NiRd) is a functional enzyme mimic of hydrogenase, highly active for electrocatalytic and solution-phase hydrogen generation. Spectroscopic methods can provide valuable insight into the catalytic mechanism, provided the appropriate technique is used. In this study, we have employed multiwavelength resonance Raman spectroscopy coupled with DFT calculations on an extended active-site model of NiRd to probe the electronic and geometric structures of the resting state of this system...
March 21, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28323166/neural-foundations-of-overt-and-covert-actions
#14
Panagiotis G Simos, Eleftherios Kavroulakis, Thomas Maris, Efrosini Papadaki, Themistoklis Boursianis, Giorgos Kalaitzakis, Helen E Savaki
We used fMRI to assess the human brain areas activated for execution, observation and 1(st) person motor imagery of a visually guided tracing task with the index finger. Voxel-level conjunction analysis revealed several cortical areas activated in common across all three motor conditions, namely, the upper limb representation of the primary motor and somatosensory cortices, the dorsal and ventral premotor, the superior and inferior parietal cortices as well as the posterior part of the superior and middle temporal gyrus including the temporo-parietal junction (TPj) and the extrastriate body area (EBA)...
March 18, 2017: NeuroImage
https://www.readbyqxmd.com/read/28323019/comparison-of-perceptual-properties-of-auditory-streaming-between-spectral-and-amplitude-modulation-domains
#15
Shimpei Yamagishi, Sho Otsuka, Shigeto Furukawa, Makio Kashino
The two-tone sequence (ABA_), which comprises two different sounds (A and B) and a silent gap, has been used to investigate how the auditory system organizes sequential sounds depending on various stimulus conditions or brain states. Auditory streaming can be evoked by differences not only in the tone frequency ("spectral cue": ΔFTONE, TONE condition) but also in the amplitude modulation rate ("AM cue": ΔFAM, AM condition). The aim of the present study was to explore the relationship between the perceptual properties of auditory streaming for the TONE and AM conditions...
March 17, 2017: Hearing Research
https://www.readbyqxmd.com/read/28322546/diverse-bonding-activations-in-the-reactivity-of-a-pentaphenylborole-toward-sodium-phosphaethynolate-heterocycle-synthesis-and-mechanistic-studies
#16
Yan Li, Rahul Kumar Siwatch, Totan Mondal, Yongxin Li, Rakesh Ganguly, Debasis Koley, Cheuk-Wai So
The reaction of the pentaphenylborole [(PhC)4BPh] (1) with sodium phosphaethynolate·1,4-dioxane (NaOCP(1,4-dioxane)1.7) afforded the novel sodium salt of phosphaboraheterocycle 2. It comprises anionic fused tetracyclic P/B-heterocycles that arise from multiple bond activation between the borole backbone and [OCP](-)anion. Density functional theory calculations indicate that the [OCP](-) anion prefers the form of phosphaethynolate (-)O-C≡P over phosphaketenide O═C═P(-) to interact with two molecules of 1, along with various B-C, C-P, and C-C bond activations to form 2...
March 21, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28322401/comparisons-of-mn2s2vs-bipyridine-as-redox-active-ligands-to-manganese-and-rhenium-in-l-l-m-co-3cl-complexes
#17
Allen M Lunsford, Kristina F Goldstein, Matthew A Cohan, Jason A Denny, Nattamai Bhuvanesh, Shengda Ding, Michael B Hall, Marcetta Y Darensbourg
The bipyridine ligand is renowned as a photo- and redox-active ligand in catalysis; the latter has been particularly explored in the complex Re(bipy)(CO)3Cl for CO2 reduction. We ask whether a bidentate, redox-active MN2S2 metallodithiolate ligand in heterobimetallic complexes of Mn and Re might similarly serve as a receptor and conduit of electrons. In order to assess the electrochemical features of such designed bimetallics, a series of complexes featuring redox active MN2S2 metallodithiolates, with M = Ni(2+), {Fe(NO)}(2+), and {Co(NO)}(2+), bound to M'(CO)3X, where M' = Mn and Re, were synthesized and characterized using IR and EPR spectroscopies, X-ray diffraction, cyclic voltammetry, and density functional theory (DFT) computations...
March 21, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28321655/quantum-chemical-nmr-ft-ir-and-esi-ms-studies-of-complexes-of-colchicine-with-zn-ii
#18
Wojciech Jankowski, Joanna Kurek, Piotr Barczyński, Marcin Hoffmann
Colchicine is a tropolone alkaloid from Colchicinum autumnale. It shows antifibrotic, antimitotic, and anti-inflammatory activities, and is used to treat gout and Mediterranean fever. In this work, complexes of colchicine with zinc(II) nitrate were synthesized and investigated using DFT, (1)H and (13)C NMR, FT IR, and ESI MS. The counterpoise-corrected and uncorrected interaction energies of these complexes were calculated. We also calculated their (1)H, (13)C NMR, and IR spectra and compared them with the corresponding experimentally obtained data...
April 2017: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/28321452/spontaneous-wormlike-micelles-formed-in-a-single-tailed-zwitterionic-surface-active-ionic-liquid-aqueous-solution
#19
Panpan Sun, Fei Lu, Aoli Wu, Lijuan Shi, Liqiang Zheng
Wormlike micelles were successfully fabricated by the self-assembly of a single-tailed zwitterionic surface-active ionic liquid (SAIL), 3-(1-hexadecyl-3-imidazolio) propanesulfonate β-naphthalene sulfonate (C16IPS-Nsa), in aqueous solutions without any additives. With increasing zwitterionic SAIL concentration, spontaneous transition from micelles to wormlike micelles and then a hexagonal phase occurs. Interestingly, the wormlike micelles are closed, stretched and directionally arranged, which was rarely found in previous research studies...
March 21, 2017: Soft Matter
https://www.readbyqxmd.com/read/28321129/cerebellar-granule-cells-encode-the-expectation-of-reward
#20
Mark J Wagner, Tony Hyun Kim, Joan Savall, Mark J Schnitzer, Liqun Luo
The human brain contains approximately 60 billion cerebellar granule cells, which outnumber all other brain neurons combined. Classical theories posit that a large, diverse population of granule cells allows for highly detailed representations of sensorimotor context, enabling downstream Purkinje cells to sense fine contextual changes. Although evidence suggests a role for the cerebellum in cognition, granule cells are known to encode only sensory and motor context. Here, using two-photon calcium imaging in behaving mice, we show that granule cells convey information about the expectation of reward...
March 20, 2017: Nature
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