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https://www.readbyqxmd.com/read/28538982/association-of-late-adolescent-personality-with-risk-for-subsequent-serious-mental-illness-among-men-in-a-swedish-nationwide-cohort-study
#1
Joseph F Hayes, David P J Osborn, Glyn Lewis, Christina Dalman, Andreas Lundin
Importance: Understanding of personality as an independent risk factor for serious mental illness (SMI) remains limited. Recently, overlap between the polygenic basis for specific personality traits and specific SMIs has been identified. Objective: To determine the association of the adolescent personality domains of social maturity, mental energy, and emotional stability with later diagnosis of SMI. Design, Setting, and Participants: This longitudinal cohort study enrolled Swedish male military conscripts aged 18 or 19 years from January 1, 1974, through December 31, 1997...
May 24, 2017: JAMA Psychiatry
https://www.readbyqxmd.com/read/28538669/the-peroxisome-mitochondria-connection-how-and-why
#2
REVIEW
Marc Fransen, Celien Lismont, Paul Walton
Over the past decades, peroxisomes have emerged as key regulators in overall cellular lipid and reactive oxygen species metabolism. In mammals, these organelles have also been recognized as important hubs in redox-, lipid-, inflammatory-, and innate immune-signaling networks. To exert these activities, peroxisomes must interact both functionally and physically with other cell organelles. This review provides a comprehensive look of what is currently known about the interconnectivity between peroxisomes and mitochondria within mammalian cells...
May 24, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28538517/greater-corticostriatal-activation-associated-with-facial-motor-imagery-compared-with-motor-execution-a-functional-mri-study
#3
Meena M Makary, Seulgi Eun, Kyungmo Park
Motor imagery (MI) relies on conscious mental simulation of a motor act without overt motor output and can promote motor skill acquisition and facilitate rehabilitation for patients with stroke or neurological conditions. Although a plethora of neuroimaging studies have investigated the neural network of MI regarding different body parts, exploration of the neural correlates to facial MI remains warranted. Here, we used functional MRI with a large cohort of 41 participants who underwent motor execution (ME) and MI runs of mouth-stretching tasks...
May 19, 2017: Neuroreport
https://www.readbyqxmd.com/read/28538084/morphofunctional-evaluation-in-dome-shaped-macula-a-microperimetry-and-optical-coherence-tomography-study
#4
Elisabetta Pilotto, Francesca Guidolin, Mariacristina Parravano, Francesco Viola, Daniele De Geronimo, Enrica Convento, Laura dellʼArti, Elena Tabacchi, Raffaele Parrozzani, Fabiano Cavarzeran, Edoardo Midena
PURPOSE: To investigate retinal sensitivity (Se) in dome-shaped macula (DSM) using microperimetry and to correlate functional findings to specific spectral domain optical coherence tomography features. METHODS: Patients affected by DSM in at least 1 eye were consecutively enrolled in a prospective, cross-sectional study. All studied eyes performed best-corrected visual acuity measurement, microperimetry to assess Se and optical coherence tomography to investigate DSM pattern and to measure bulge height and retinal and choroidal thicknesses...
May 22, 2017: Retina
https://www.readbyqxmd.com/read/28534919/solid-state-and-surface-effects-in-thin-film-molecular-switches
#5
Jonathan P Hopwood, Jacob W Ciszek
Thin-films of three dihydroindolizine molecular switches were monitored via polarization modulation infrared reflection absorption spectroscopy to quantify solid state and surface-based inhibition of switching as a function of irradiation time. In the solid state, the molecular switches diverged dramatically with flexible alkyl substituents resulting in switching rates up to three times that of switches containing rigid analogs. For thin-films, decreasing film thickness from 30 nm to approximately 4 molecules thick resulted in an increase in inhibition...
May 23, 2017: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/28534829/variation-in-the-genetic-repertoire-of-viruses-infecting-micromonas-pusilla-reflects-horizontal-gene-transfer-and-links-to-their-environmental-distribution
#6
Jan F Finke, Danielle M Winget, Amy M Chan, Curtis A Suttle
Prasinophytes, a group of eukaryotic phytoplankton, has a global distribution and is infected by large double-stranded DNA viruses (prasinoviruses) in the family Phycodnaviridae. This study examines the genetic repertoire, phylogeny, and environmental distribution of phycodnaviruses infecting Micromonas pusilla, other prasinophytes and chlorophytes. Based on comparisons among the genomes of viruses infecting M. pusilla and other phycodnaviruses, as well as the genome from a host isolate of M. pusilla, viruses infecting M...
May 19, 2017: Viruses
https://www.readbyqxmd.com/read/28534794/multiclass-learning-with-partially-corrupted-labels
#7
Ruxin Wang, Tongliang Liu, Dacheng Tao
Traditional classification systems rely heavily on sufficient training data with accurate labels. However, the quality of the collected data depends on the labelers, among which inexperienced labelers may exist and produce unexpected labels that may degrade the performance of a learning system. In this paper, we investigate the multiclass classification problem where a certain amount of training examples are randomly labeled. Specifically, we show that this issue can be formulated as a label noise problem. To perform multiclass classification, we employ the widely used importance reweighting strategy to enable the learning on noisy data to more closely reflect the results on noise-free data...
May 16, 2017: IEEE Transactions on Neural Networks and Learning Systems
https://www.readbyqxmd.com/read/28534658/dynamic-brain-glucose-metabolism-identifies-anti-correlated-cortical-cerebellar-networks-at-rest
#8
Dardo G Tomasi, Ehsan Shokri-Kojori, Corinde E Wiers, Sunny W Kim, Şukru B Demiral, Elizabeth A Cabrera, Elsa Lindgren, Gregg Miller, Gene-Jack Wang, Nora D Volkow
It remains unclear whether resting state functional magnetic resonance imaging (rfMRI) networks are associated with underlying synchrony in energy demand, as measured by dynamic 2-deoxy-2-[(18)F]fluoroglucose (FDG) positron emission tomography (PET). We measured absolute glucose metabolism, temporal metabolic connectivity (t-MC) and rfMRI patterns in 53 healthy participants at rest. Twenty-two rfMRI networks emerged from group independent component analysis (gICA). In contrast, only two anti-correlated t-MC emerged from FDG-PET time series using gICA or seed-voxel correlations; one included frontal, parietal and temporal cortices, the other included the cerebellum and medial temporal regions...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28534604/the-influence-of-expectations-on-improvements-in-pain-and-function-in-patients-with-neck-back-shoulder-complaints-a-cohort-study
#9
Sigrid Skatteboe, Cecilie Røe, Morten W Fagerland, Lars-Petter Granan
BACKGROUND: In musculoskeletal research, patients' expectations have recently received increased attention. However, few prospective studies have investigated these expectations or their prognostic significance and possible clinical value. AIM: To investigate the influence of patients' expectations on improvements in pain and functional status six months after an outpatient physical medicine assessment. DESIGN: A prospective cohort study. SETTING: Physical Medicine and Rehabilitation (PMR) outpatient clinic...
May 23, 2017: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/28534584/composition-dependent-electronic-energy-relaxation-dynamics-of-metal-domains-as-revealed-by-bimetallic-au144-xagx-sc8h9-60-monolayer-protected-clusters
#10
Hongjun Zheng, Marcus A Tofanelli, Christopher J Ackerson, Kenneth L Knappenberger
We examined the electronic relaxation dynamics for mono and bimetallic Au144-xAgx(SC8H9)60 monolayer-protected clusters (MPCs) using femtosecond time-resolved transient extinction spectroscopy. MPCs provide compositionally well-defined model systems for structure-specific determination of nanoscale electronic properties. Based on pulse-energy-dependent transient extinction data, we quantified electron-phonon coupling constants for three distinct Au144-xAgx(SC8H9)60 MPC samples, where x = 0, 0 < x < 30, and x ∼ 30, as Gx=0 = (1...
May 23, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28534464/does-the-social-functioning-scale-reflect-real-life-social-functioning-an-experience-sampling-study-in-patients-with-a-non-affective-psychotic-disorder-and-healthy-control-individuals
#11
M Schneider, U Reininghaus, M van Nierop, M Janssens, I Myin-Germeys
BACKGROUND: The ecological validity of retrospective measures of social functioning is currently unknown in patients with schizophrenia. In the present study, patients with a diagnosis of non-affective psychosis were compared with controls on two measures of social functioning: the Social Functioning Scale (SFS) and daily-life measures collected with the Experience Sampling Methodology (ESM). The associations between both measures were examined in each group of participants to test for the ecological validity of the SFS...
May 23, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28534459/differences-in-neural-response-to-extinction-recall-in-young-adults-with-or-without-history-of-behavioral-inhibition
#12
Tomer Shechner, Nathan A Fox, Jamie A Mash, Johanna M Jarcho, Gang Chen, Ellen Leibenluft, Daniel S Pine, Jennifer C Britton
Behavioral inhibition (BI) is a temperament identified in early childhood that is associated with risk for anxiety disorders, yet only about half of behaviorally inhibited children manifest anxiety later in life. We compared brain function and behavior during extinction recall in a sample of nonanxious young adults characterized in childhood with BI (n = 22) or with no BI (n = 28). Three weeks after undergoing fear conditioning and extinction, participants completed a functional magnetic resonance imaging extinction recall task assessing memory and threat differentiation for conditioned stimuli...
May 23, 2017: Development and Psychopathology
https://www.readbyqxmd.com/read/28534322/-value-of-functional-magnetic-resonance-imaging-in-predicting-outcomes-of-neoadjuvant-chemoradiotherapy-in-rectal-cancer
#13
Yishan Yu, Jinbo Yue, Jinming Yu
Rectal cancer is one of the common cancers which poses a threat to the health of mankind. In recent years. Multi-modality treatment strategies for locally advanced rectal cancer improve the treatment efficiency. Accurate prediction of the treatment response after the neoadjuvant chemoradiotherapy (CRT) can guide more suitable treatment strategy. MERCURY study proved the prognostic value of post-CRT standard morphologic MRI(T2-weighted) assessment of tumor regression grade(TRG), and MRI assessment of circumferential resection margin can guide the definitive surgery...
May 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28533825/in-situ-mems-testing-correlation-of-high-resolution-x-ray-diffraction-with-mechanical-experiments-and-finite-element-analysis
#14
REVIEW
Andreas Schifferle, Alex Dommann, Antonia Neels
New methods are needed in microsystems technology for evaluating microelectromechanical systems (MEMS) because of their reduced size. The assessment and characterization of mechanical and structural relations of MEMS are essential to assure the long-term functioning of devices, and have a significant impact on design and fabrication. Within this study a concept for the investigation of mechanically loaded MEMS materials on an atomic level is introduced, combining high-resolution X-ray diffraction (HRXRD) measurements with finite element analysis (FEA) and mechanical testing...
2017: Science and Technology of Advanced Materials
https://www.readbyqxmd.com/read/28533731/effect-of-loss-of-teeth-and-its-association-with-general-quality-of-life-using-geriatric-oral-health-assessment-index-gohai-among-older-individuals-residing-in-rural-areas
#15
Vinaya Kundapur, Rakshith Hegde, Manoj Shetty, Sunil Mankar, Mohammed Hilal, Hari Prasad A
The development of measures for assessing oral health status is essential to the evolution and maturation of a scientific knowledge based in geriatric dentistry. Their development as branches of clinical care depends in part as ability to demonstrate an effective grasp of the problems of elderly and their solutions. Any strategy for altering the health status of elderly requires a technology for first assessing that health status and then detecting increments of progress. Development of geriatric oral health assessment index (GOHAI) is a self reported measure designed to assess the oral health problems of older individuals...
March 2017: International Journal of Biomedical Science: IJBS
https://www.readbyqxmd.com/read/28533535/tail-tubular-protein-a-a-dual-function-tail-protein-of-klebsiella-pneumoniae-bacteriophage-kp32
#16
Anna Pyra, Ewa Brzozowska, Krzysztof Pawlik, Andrzej Gamian, Miroslawa Dauter, Zbigniew Dauter
Tail tubular protein A (TTPA) is a structural tail protein of Klebsiella pneumoniae bacteriophage KP32, and is responsible for adhering the bacteriophage to host cells. For the first time, we found that TTPA also exhibits lytic activity towards capsular exopolysaccharide (EPS) of the multiresistant clinical strain of Klebsiella pneumoniae, PCM2713, and thus should be regarded as a dual-function macromolecule that exhibits both structural and enzymatic actions. Here, we present our crystallographic and enzymatic studies of TTPA...
May 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28533462/thermal-consequences-of-colour-and-near-infrared-reflectance
#17
REVIEW
Devi Stuart-Fox, Elizabeth Newton, Susana Clusella-Trullas
The importance of colour for temperature regulation in animals remains controversial. Colour can affect an animal's temperature because all else being equal, dark surfaces absorb more solar energy than do light surfaces, and that energy is converted into heat. However, in reality, the relationship between colour and thermoregulation is complex and varied because it depends on environmental conditions and the physical properties, behaviour and physiology of the animal. Furthermore, the thermal effects of colour depend as much on absorptance of near-infrared ((NIR), 700-2500 nm) as visible (300-700 nm) wavelengths of direct sunlight; yet the NIR is very rarely considered or measured...
July 5, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28533454/genomics-of-coloration-in-natural-animal-populations
#18
REVIEW
Luis M San-Jose, Alexandre Roulin
Animal coloration has traditionally been the target of genetic and evolutionary studies. However, until very recently, the study of the genetic basis of animal coloration has been mainly restricted to model species, whereas research on non-model species has been either neglected or mainly based on candidate approaches, and thereby limited by the knowledge obtained in model species. Recent high-throughput sequencing technologies allow us to overcome previous limitations, and open new avenues to study the genetic basis of animal coloration in a broader number of species and colour traits, and to address the general relevance of different genetic structures and their implications for the evolution of colour...
July 5, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28533453/selection-of-the-intrinsic-polarization-properties-of-animal-optical-materials-creates-enhanced-structural-reflectivity-and-camouflage
#19
Kathryn D Feller, Thomas M Jordan, David Wilby, Nicholas W Roberts
Many animals use structural coloration to create bright and conspicuous visual signals. Selection of the size and shape of the optical structures animals use defines both the colour and intensity of the light reflected. The material used to create these reflectors is also important; however, animals are restricted to a limited number of materials: commonly chitin, guanine and the protein, reflectin. In this work we highlight that a particular set of material properties can also be under selection in order to increase the optical functionality of structural reflectors...
July 5, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28533334/the-evolutionary-basis-of-translational-accuracy-in-plants
#20
Salvatore Camiolo, Gaurav Sablok, Andrea Porceddu
Mistranslation errors compromise fitness by wasting resources on nonfunctional proteins. In order to reduce the cost of mistranslations, natural selection chooses the most accurately-translated codons at sites that are particularly important for protein structure and function. We investigated the determinants underlying selection for translational accuracy in several species of plants belonging to three clades: the Brassicaceae, Fabidae and Poaceae. Although signatures of translational selection were found in genes from a wide range of species, the underlying factors varied in nature and intensity...
May 22, 2017: G3: Genes—Genomes—Genetics
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