keyword
MENU ▼
Read by QxMD icon Read
search

Temporal processing

keyword
https://www.readbyqxmd.com/read/28329860/modeling-intraindividual-dynamics-using-stochastic-differential-equations-age-differences-in-affect-regulation
#1
Julie Wood, Zita Oravecz, Nina Vogel, Lizbeth Benson, Sy-Miin Chow, Pamela Cole, David E Conroy, Aaron L Pincus, Nilam Ram
Objectives: Life-span theories of aging suggest improvements and decrements in individuals' ability to regulate affect. Dynamic process models, with intensive longitudinal data, provide new opportunities to articulate specific theories about individual differences in intraindividual dynamics. This paper illustrates a method for operationalizing affect dynamics using a multilevel stochastic differential equation (SDE) model, and examines how those dynamics differ with age and trait-level tendencies to deploy emotion regulation strategies (reappraisal and suppression)...
March 2, 2017: Journals of Gerontology. Series B, Psychological Sciences and Social Sciences
https://www.readbyqxmd.com/read/28328939/multimodal-mr-imaging-reveals-large-scale-structural-and-functional-connectivity-changes-in-profound-early-blindness
#2
Corinna M Bauer, Gabriella V Hirsch, Lauren Zajac, Bang-Bon Koo, Olivier Collignon, Lotfi B Merabet
In the setting of profound ocular blindness, numerous lines of evidence demonstrate the existence of dramatic anatomical and functional changes within the brain. However, previous studies based on a variety of distinct measures have often provided inconsistent findings. To help reconcile this issue, we used a multimodal magnetic resonance (MR)-based imaging approach to provide complementary structural and functional information regarding this neuroplastic reorganization. This included gray matter structural morphometry, high angular resolution diffusion imaging (HARDI) of white matter connectivity and integrity, and resting state functional connectivity MRI (rsfcMRI) analysis...
2017: PloS One
https://www.readbyqxmd.com/read/28328937/efficient-occupancy-model-fitting-for-extensive-citizen-science-data
#3
Emily B Dennis, Byron J T Morgan, Stephen N Freeman, Martin S Ridout, Tom M Brereton, Richard Fox, Gary D Powney, David B Roy
Appropriate large-scale citizen-science data present important new opportunities for biodiversity modelling, due in part to the wide spatial coverage of information. Recently proposed occupancy modelling approaches naturally incorporate random effects in order to account for annual variation in the composition of sites surveyed. In turn this leads to Bayesian analysis and model fitting, which are typically extremely time consuming. Motivated by presence-only records of occurrence from the UK Butterflies for the New Millennium data base, we present an alternative approach, in which site variation is described in a standard way through logistic regression on relevant environmental covariates...
2017: PloS One
https://www.readbyqxmd.com/read/28328739/effects-of-a-brief-cognitive-behavioural-therapy-group-intervention-on-baseline-brain-perfusion-in-adolescents-with-major-depressive-disorder
#4
Zrinka Sosic-Vasic, Birgit Abler, Georg Grön, Paul Plener, Joana Straub
A number of neuroimaging studies have identified altered regional cerebral blood flow (rCBF) related to major depressive disorder (MDD) in adult samples, particularly in the lateral prefrontal, cingular and temporal regions. In contrast, neuroimaging investigations in adolescents with MDD are rare, although investigating young patients during a significant period of brain maturation might offer valuable insights into the neural mechanisms of MDD. We acquired perfusion images obtained with continuous arterial spin labelling in 21 medication-naive adolescents with MDD before and after a five-session cognitive behavioural group therapy (group CBT)...
March 21, 2017: Neuroreport
https://www.readbyqxmd.com/read/28328117/noonan-syndrome-ptpn11-mutations-and-brain-tumors-a-clinical-report-and-review-of-the-literature
#5
Aurore Siegfried, Claude Cances, Marie Denuelle, Najat Loukh, Maïté Tauber, Hélène Cavé, Marie-Bernadette Delisle
Noonan syndrome (NS), an autosomal dominant disorder, is characterized by short stature, congenital heart defects, developmental delay, and facial dysmorphism. PTPN11 mutations are the most common cause of NS. PTPN11 encodes a non-receptor protein tyrosine phosphatase, SHP2. Hematopoietic malignancies and solid tumors are associated with NS. Among solid tumors, brain tumors have been described in children and young adults but remain rather rare. We report a 16-year-old boy with PTPN11-related NS who, at the age of 12, was incidentally found to have a left temporal lobe brain tumor and a cystic lesion in the right thalamus...
April 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28327777/predicting-and-assessing-rupture-in-protein-gels-under-oscillatory-shear
#6
Brice Saint-Michel, Thomas Gibaud, Sébastien Manneville
Soft materials may break irreversibly upon applying sufficiently large shear oscillations, a process whose physical mechanism remains largely elusive. In this work, the rupture of protein gels made of sodium caseinate under an oscillatory stress is shown to occur in an abrupt, brittle-like manner. Upon increasing the stress amplitude, the build-up of harmonic modes in the strain response can be rescaled for all gel concentrations. This rescaling yields an empirical criterion to predict the rupture point way before the samples are significantly damaged...
March 22, 2017: Soft Matter
https://www.readbyqxmd.com/read/28327562/transition-of-temporal-scaling-behavior-in-percolation-assisted-shear-branching-structure-during-plastic-deformation
#7
Jingli Ren, Cun Chen, Gang Wang, Peter K Liaw
This paper explores the temporal scaling behavior induced shear-branching structure in response to variant temperatures and strain rates during plastic deformation of Zr-based bulk metallic glass (BMG). The data analysis based on the compression tests suggests that there are two states of shear-branching structures: the fractal structure with a long-range order at an intermediate temperature of 223 K and a larger strain rate of 2.5 × 10(-2) s(-1); the disordered structure dominated at other temperature and strain rate...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28326983/morphologic-and-morphometric-description-of-the-temporomandibular-joint-in-the-domestic-dog-using-computed-tomography
#8
Lenin A Villamizar-Martinez, Cristian M Villegas, Marco A Gioso, Alexander M Reiter, Geni C Patricio, Ana C Pinto
The temporomandibular joint (TMJ) in the domestic dog is a synovial joint with 2 articular surfaces, the mandibular fossa of the squamous portion of the temporal bone and the articular head of the condylar process of the mandible. Although different diagnostic imaging techniques have been used to study the TMJ in dogs, morphologic and morphometric studies based on computed tomography (CT) are scarce. The purpose of the present study was to describe the morphologic and morphometric features of the TMJ in domestic dogs using CT...
June 2016: Journal of Veterinary Dentistry
https://www.readbyqxmd.com/read/28326772/illuminating-the-reaction-pathways-of-viromimetic-assembly
#9
Hande E Cingil, Emre B Boz, Giovanni Biondaro, Renko de Vries, Martien A Cohen Stuart, Daniela J Kraft, Paul van der Schoot, Joris Sprakel
The co-assembly of well-defined biological nanostructures relies on a delicate balance between attractive and repulsive interactions between biomolecular building blocks. Viral capsids are a prototypical example, where coat proteins exhibit not only self-interactions but also interact with the cargo they encapsulate. In Nature the balance between antagonistic and synergistic interactions is evolved to avoid kinetic trapping and polymorphism. To date it has remained a major challenge to experimentally disentangle the complex kinetic reaction pathways that underlie successful co-assembly of biomolecular building blocks in a non-invasive approach with high temporal resolution...
March 22, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28326062/compositional-stability-of-the-bacterial-community-in-a-climate-sensitive-sub-arctic-peatland
#10
James T Weedon, George A Kowalchuk, Rien Aerts, Stef Freriks, Wilfred F M Röling, Peter M van Bodegom
The climate sensitivity of microbe-mediated soil processes such as carbon and nitrogen cycling offers an interesting case for evaluating the corresponding sensitivity of microbial community composition to environmental change. Better understanding of the degree of linkage between functional and compositional stability would contribute to ongoing efforts to build mechanistic models aiming at predicting rates of microbe-mediated processes. We used an amplicon sequencing approach to test if previously observed large effects of experimental soil warming on C and N cycle fluxes (50-100% increases) in a sub-arctic Sphagnum peatland were reflected in changes in the composition of the soil bacterial community...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28326054/dynamical-constants-and-time-universals-a-first-step-toward-a-metrical-definition-of-ordered-and-abnormal-cognition
#11
REVIEW
Mark A Elliott, Naomi du Bois
From the point of view of the cognitive dynamicist the organization of brain circuitry into assemblies defined by their synchrony at particular (and precise) oscillation frequencies is important for the correct correlation of all independent cortical responses to the different aspects of a given complex thought or object. From the point of view of anyone operating complex mechanical systems, i.e., those comprising independent components that are required to interact precisely in time, it follows that the precise timing of such a system is essential - not only essential but measurable, and scalable...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28325934/cordillera-zealandia-a-mesozoic-arc-flare-up-on-the-palaeo-pacific-gondwana-margin
#12
L A Milan, N R Daczko, G L Clarke
Two geochemically and temporally distinct components of the Mesozoic Zealandia Cordilleran arc indicate a shift from low to high Sr/Y whole rock ratios at c. 130 Ma. Recent mapping and a reappraisal of published Sr-Nd data combined with new in-situ zircon Hf isotope analyses supports a genetic relationship between the two arc components. A reappraisal of geophysical, geochemical and P-T estimates demonstrates a doubling in thickness of the arc to at least 80 km at c. 130 Ma. Contemporaneously, magmatic addition rates shifted from ~14 km(3)/my per km of arc to a flare-up involving ~100 km(3)/my per km of arc...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28324695/imagining-the-future-the-core-episodic-simulation-network-dissociates-as-a-function-of-timecourse-and-the-amount-of-simulated-information
#13
Preston P Thakral, Roland G Benoit, Daniel L Schacter
Neuroimaging data indicate that episodic memory (i.e., remembering specific past experiences) and episodic simulation (i.e., imagining specific future experiences) are associated with enhanced activity in a common set of neural regions, often referred to as the core network. This network comprises the hippocampus, parahippocampal cortex, lateral and medial parietal cortex, lateral temporal cortex, and medial prefrontal cortex. Evidence for a core network has been taken as support for the idea that episodic memory and episodic simulation are supported by common processes...
February 24, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28324681/morphometric-mri-features-are-associated-with-surgical-outcome-in-mesial-temporal-lobe-epilepsy-with-hippocampal-sclerosis
#14
Maria Teresa Fernandes Castilho Garcia, Larissa Botelho Gaça, Gabriel Barbosa Sandim, Idaiane Batista Assunção Leme, Henrique Carrete, Ricardo Silva Centeno, João Ricardo Sato, Elza Márcia Targas Yacubian
PURPOSE: Corticoamygdalohippocampectomy (CAH) improves seizure control, quality of life, and decreases mortality for refractory mesial temporal lobe epilepsy with hippocampal sclerosis (MTLE-HS). One-third of patients continue having seizures, and it is pivotal to determine structural abnormalities that might influence the postoperative outcome. Studies indicate that nonhippocampal regions may play a role in the epileptogenic network in MTLE-HS and could generate seizures postoperatively...
March 1, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28324599/three-dimensional-live-imaging-of-filamentous-fungi-with-light-sheet-based-fluorescence-microscopy-lsfm
#15
Francesco Pampaloni, Laura Knuppertz, Andrea Hamann, Heinz D Osiewacz, Ernst H K Stelzer
We describe a method for the three-dimensional live imaging of filamentous fungi with light sheet-based fluorescence microscopy (LSFM). LSFM provides completely new opportunities to investigate the biology of fungal cells and other microorganisms with high spatial and temporal resolution. As an example, we study the established aging model Podospora anserina. The protocol explains the mounting of the live fungi for the light sheet imaging, the imaging procedure and illustrates basic image processing of data...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28324279/soil-organic-matter-as-sole-indicator-of-soil-degradation
#16
S E Obalum, G U Chibuike, S Peth, Y Ouyang
Soil organic matter (SOM) is known to play vital roles in the maintenance and improvement of many soil properties and processes. These roles, which largely influence soil functions, are a pool of specific contributions of different components of SOM. The soil functions, in turn, normally define the level of soil degradation, viewed as quantifiable temporal changes in a soil that impairs its quality. This paper aims at providing a generalized assessment of the current state of knowledge on the usefulness of SOM in monitoring soil degradation, based on its influence on the physical, chemical and biological properties and processes of soils...
April 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28323933/research-resource-transcriptional-dynamics-of-cultured-human-villous-cytotrophoblasts
#17
Joshua F Robinson, Mirhan Kapidzic, Matthew Gormley, Katherine Ona, Terrence Dent, Helia Seifikar, Emily G Hamilton, Susan J Fisher
During human pregnancy, cytotrophoblasts (CTBs) play key roles in uterine invasion, vascular remodeling, and anchoring of the feto-placental unit. Due to the challenges associated with studying human placentation in utero, cultured primary villous CTBs are used as a model of the differentiation pathway that leads to invasion of the uterine wall. In vitro, CTBs emulate in vivo cell behaviors, such as migration, aggregation and substrate penetration. While some of the molecular features related to these cell behaviors have been described, the underlying mechanisms, at a global level, remain undefined at mid-gestation...
March 8, 2017: Endocrinology
https://www.readbyqxmd.com/read/28323332/shedding-light-on-gray-ing-areas-connectivity-and-task-switching-dynamics-in-aging
#18
Pauline L Baniqued, Kathy A Low, Mark A Fletcher, Gabriele Gratton, Monica Fabiani
Control-demanding tasks rely on communication among regions of the frontoparietal network, areas that undergo significant age-related decline. Here, we integrate data from brain anatomy, electrophysiology (ERPs), and optical imaging (event-related optical signals, EROS) to characterize the spatial and temporal dynamics of preparatory control processes in middle to old age. Older adults participated in an experiment that required switching between a position and a meaning task (spatial Stroop), a paradigm that has been shown to primarily recruit prefrontal cortex in opposite hemispheres and is thought to involve the corpus callosum (CC)...
March 21, 2017: Psychophysiology
https://www.readbyqxmd.com/read/28323299/cyanobacterial-nitrogenases-phylogenetic-diversity-regulation-and-functional-predictions
#19
Alberto A Esteves-Ferreira, João Henrique Frota Cavalcanti, Marcelo Gomes Marçal Vieira Vaz, Luna V Alvarenga, Adriano Nunes-Nesi, Wagner L Araújo
Cyanobacteria is a remarkable group of prokaryotic photosynthetic microorganisms, with several genera capable of fixing atmospheric nitrogen (N2) and presenting a wide range of morphologies. Although the nitrogenase complex is not present in all cyanobacterial taxa, it is spread across several cyanobacterial strains. The nitrogenase complex has also a high theoretical potential for biofuel production, since H2 is a by-product produced during N2 fixation. In this review we discuss the significance of a relatively wide variety of cell morphologies and metabolic strategies that allow spatial and temporal separation of N2 fixation from photosynthesis in cyanobacteria...
March 20, 2017: Genetics and Molecular Biology
https://www.readbyqxmd.com/read/28323114/physician-activity-during-outpatient-visits-and-subjective-workload
#20
Alan Calvitti, Harry Hochheiser, Shazia Ashfaq, Kristin Bell, Yunan Chen, Robert El Kareh, Mark T Gabuzda, Lin Liu, Sara Mortensen, Braj Pandey, Steven Rick, Richard L Street, Nadir Weibel, Charlene Weir, Zia Agha
We describe methods for capturing and analyzing EHR use and clinical workflow of physicians during outpatient encounters and relating activity to physicians' self-reported workload. We collected temporally-resolved activity data including audio, video, EHR activity, and eye-gaze along with post-visit assessments of workload. These data are then analyzed through a combination of manual content analysis and computational techniques to temporally align streams, providing a range of process measures of EHR usage, clinical workflow, and physician-patient communication...
March 17, 2017: Journal of Biomedical Informatics
keyword
keyword
59166
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"