keyword
MENU ▼
Read by QxMD icon Read
search

singular

keyword
https://www.readbyqxmd.com/read/28092552/discriminative-elastic-net-regularized-linear-regression
#1
Zheng Zhang, Zhihui Lai, Yong Xu, Ling Shao, Jian Wu, Guo-Sen Xie
In this paper, we aim at learning compact and discriminative linear regression models. Linear regression has been widely used in different problems. However, most of the existing linear regression methods exploit the conventional zeroone matrix as the regression targets, which greatly narrows the flexibility of the regression model. Another major limitation of theses methods is that the learned projection matrix fails to precisely project the image features to the target space due to their weak discriminative capability...
January 11, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28088506/linguistic-indicators-of-pain-catastrophizing-in-patients-with-chronic-musculoskeletal-pain
#2
Doerte U Junghaenel, Stefan Schneider, Joan E Broderick
: The present study examined markers of pain catastrophizing in the word use of patients with chronic pain. Patients (n = 71) completed the Pain Catastrophizing Scale and wrote about their life with pain. Quantitative word count analysis examined whether the essays contained linguistic indicators of catastrophizing. Bivariate correlations showed that catastrophizing was associated with greater use of first person singular pronouns, such as "I" (r = .27, p≤ .05) and pronouns referencing other people (r = 28, p≤ ...
January 11, 2017: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/28088470/the-effects-of-dietary-kefir-and-low-molecular-weight-sodium-alginate-on-serum-immune-parameters-resistance-against-streptococcus-agalactiae-and-growth-performance-in-nile-tilapia-oreochromis-niloticus
#3
Hien Van Doan, Seyed Hossein Hoseinifar, Wanaporn Tapingkae, Pimporn Khamtavee
The present study evaluates the effects of dietary kefir and low molecular weight sodium alginate (LWMSA) (singular or combined) on non-specific immune response, disease resistance and growth performance of Nile tilapia (Oreochromis niloticus). Fish with average weight of 18.60 ± 0.04 g were supplied and randomly stocked in sixteen glass tanks (150 L) at density of 20 fish per tank. Fish were fed experimental diets as follows: 0 g kg(-1) LMWSA (Control, Diet 1), 10 g kg(-1) LMWSA (Diet 2), 40 g kg(-1) kefir (Diet 3), and 10 g kg(-1) LMWSA + 40 g kg(-1) kefir (Diet 4) for 50 days...
January 11, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28087968/thymic-carcinoma-presenting-with-an-unusual-and-delayed-metastasis-to-the-neural-foramen-mimicking-thoracic-spinal-radiculopathy
#4
H M Low, C F Wong, M W H'ng
We report a case of metastatic thymic carcinoma which presented as an enhancing mass located in the neural foramen of the thoracic spine. More common tumours which arise in the neural foramen would include a neurogenic tumour or developmental anomalies such as a foregut duplication cyst. This case is singular firstly because the lesion present as radiculopathy which mimics a neurogenic tumour. Secondly, the presentation was unusually delayed as the patient presented to our centre more than a decade after the resection of the primary tumour in another institution...
December 2016: Medical Journal of Malaysia
https://www.readbyqxmd.com/read/28087058/robust-observer-based-passive-control-for-uncertain-singular-time-delay-systems-subject-to-actuator-saturation
#5
Yuechao Ma, Pingjing Yang, Yifang Yan, Qingling Zhang
This paper investigates the problem of robust observer-based passive control for uncertain singular time-delay system subject to actuator saturation. A polytopic approach is used to describe the saturation behavior. First, by constructing Lyapunov-Krasovskii functional, a less conservative sufficient condition is obtained which guarantees that the closed-loop system is regular, impulse free, stable and robust strictly passive. Then, with this condition, the design method of state feedback controller and the observer are given by solving linear matrix inequalities...
January 10, 2017: ISA Transactions
https://www.readbyqxmd.com/read/28079134/topological-features-of-vector-vortex-beams-perturbed-with-uniformly-polarized-light
#6
Alessio D'Errico, Maria Maffei, Bruno Piccirillo, Corrado de Lisio, Filippo Cardano, Lorenzo Marrucci
Optical singularities manifesting at the center of vector vortex beams are unstable, since their topological charge is higher than the lowest value permitted by Maxwell's equations. Inspired by conceptually similar phenomena occurring in the polarization pattern characterizing the skylight, we show how perturbations that break the symmetry of radially symmetric vector beams lead to the formation of a pair of fundamental and stable singularities, i.e. points of circular polarization. We prepare a superposition of a radial (or azimuthal) vector beam and a uniformly linearly polarized Gaussian beam; by varying the amplitudes of the two fields, we control the formation of pairs of these singular points and their spatial separation...
January 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28077139/assessment-of-coping-a-new-french-four-factor-structure-of-the-brief-cope-inventory
#7
Karine Baumstarck, Marine Alessandrini, Zeinab Hamidou, Pascal Auquier, Tanguy Leroy, Laurent Boyer
BACKGROUND: The Brief Coping Orientation to Problems Experienced (Brief COPE) inventory is the most usual measure to identify the nature of coping strategies implemented by individuals and explore 14 coping strategies. The availability of a structure with fewer factors rather than the initial 14-factor structure may be of interest for both healthcare professionals and researchers. We report the validation process of a 4-factor structure of the French version of the Brief COPE in a French sample of individuals facing a singular life event, such as cancer, including patients and their caregivers...
January 11, 2017: Health and Quality of Life Outcomes
https://www.readbyqxmd.com/read/28076526/perception-of-pre-and-post-hiv-test-counseling-among-patients-diagnosed-with-aids-in-adolescence-hiv-test-counseling-for-adolescents
#8
Stella Regina Taquette, Adriana de Oliveira Rodrigues, Lívia Rocha Bortolotti
Pre- and post-HIV test counseling has singular importance in adolescence, since it is a phase of great changes, and AIDS is an incurable chronic disease. In order to comprehend the perception of young people with AIDS diagnosed in adolescence regarding the counseling received upon testing, we conducted 39 in-depth interviews, with 23 in female patients and 16 male patients, and then analyzed the data with extensive reading, categorization and interpretation on a comprehensive basis. The results revealed that less than one third received pre-test counseling (30...
January 2017: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/28074352/optshrink-lr%C3%A2-%C3%A2-s-accelerated-fmri-reconstruction-using-non-convex-optimal-singular-value-shrinkage
#9
Priya Aggarwal, Parth Shrivastava, Tanay Kabra, Anubha Gupta
This paper presents a new accelerated fMRI reconstruction method, namely, OptShrink LR + S method that reconstructs undersampled fMRI data using a linear combination of low-rank and sparse components. The low-rank component has been estimated using non-convex optimal singular value shrinkage algorithm, while the sparse component has been estimated using convex l (1) minimization. The performance of the proposed method is compared with the existing state-of-the-art algorithms on real fMRI dataset. The proposed OptShrink LR + S method yields good qualitative and quantitative results...
January 10, 2017: Brain Informatics
https://www.readbyqxmd.com/read/28073332/an-examination-of-age-based-stereotype-threat-about-cognitive-decline
#10
Sarah J Barber
"Stereotype threat" is often thought of as a singular construct, with moderators and mechanisms that are stable across groups and domains. However, this is not always true. To illustrate this, the current review focuses on the stereotype threat that older adults face about their cognitive abilities. Drawing upon the multithreat framework, I first provide evidence that this is a self-concept threat and not a group-reputation threat. Because this differs from the forms of stereotype threat experienced by other groups (e...
January 2017: Perspectives on Psychological Science: a Journal of the Association for Psychological Science
https://www.readbyqxmd.com/read/28073206/a-singular-case-of-polyorchidism
#11
Giacomo Di Cosmo, Tommaso Silvestri, Stefano Bucci, Michele Bertolotto, Carlo Trombetta
We report a case of polyorchidism, a rare congenital anomaly, frequently discovered by chance. At current knowledge is still not defined which is the best clinical and therapeutic approach as well the best follow- up scheme due to the unclear malignant potential and rate of complications if a conservative approach is used. MRI (Magnetic Resonance Imaging) seems to be a good method to discriminate this mass from others pathological findings but there is still not enough evidence to standardize the procedure.
December 30, 2016: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/28072580/in-vivo-real-time-cavitation-imaging-in-moving-organs
#12
B Arnal, J Baranger, C Demene, M Tanter, M Pernot
The stochastic nature of cavitation implies visualization of the cavitation cloud in real-time and in a discriminative manner for the safe use of focused ultrasound therapy. This visualization is sometimes possible with standard echography, but it strongly depends on the quality of the scanner, and is hindered by difficulty in discriminating from highly reflecting tissue signals in different organs. A specific approach would then permit clear validation of the cavitation position and activity. Detecting signals from a specific source with high sensitivity is a major problem in ultrasound imaging...
February 7, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28070897/stable-spline-deconvolution-for-dynamic-susceptibility-contrast-mri
#13
Denis Peruzzo, Marco Castellaro, Gianluigi Pillonetto, Alessandra Bertoldo
PURPOSE: To present the stable spline (SS) deconvolution method for the quantification of the cerebral blood flow (CBF) from dynamic susceptibility contrast MRI. METHODS: The SS method was compared with both the block-circulant singular value decomposition (oSVD) and nonlinear stochastic regularization (NSR) methods. oSVD is one of the most popular deconvolution methods in dynamic susceptibility contrast MRI (DSC-MRI). NSR is an alternative approach that we proposed previously...
January 9, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28064366/increased-heterocyst-frequency-by-patn-disruption-in-anabaena-leads-to-enhanced-photobiological-hydrogen-production-at-high-light-intensity-and-high-cell-density
#14
Hajime Masukawa, Hidehiro Sakurai, Robert P Hausinger, Kazuhito Inoue
The effects of increasing the heterocyst-to-vegetative cell ratio on the nitrogenase-based photobiological hydrogen production by the filamentous heterocyst-forming cyanobacterium Anabaena sp. PCC 7120 were studied. Using the uptake hydrogenase-disrupted mutant (ΔHup) as the parent, a deletion-insertion mutant (PN1) was created in patN, known to be involved in heterocyst pattern formation and leading to multiple singular heterocysts (MSH) in Nostoc punctiforme strain ATCC 29133. The PN1 strain showed heterocyst differentiation but failed to grow in medium free of combined-nitrogen; however, a spontaneous mutant (PN22) was obtained on prolonged incubation of PN1 liquid cultures and was able to grow robustly on N2...
January 7, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28059851/treated-unilateral-lambdoid-synostosis-using-cranium-distraction-osteogenesis-with-z-shaped-osteotomy
#15
Shen Weimin, Jie Cui, Jianbing Chen, Qingwen Gao
PURPOSE: We studied the effect of cranium distraction osteogenesis using Z-shaped osteotomy to treat unilateral lambdoid synostosis. METHODS: Simulating the occipital, parietal, and temporal bones as a hemisphere, we designed a lambdoid suture that connected parallel osteotomy and sagittal sutures or extended to fossa cranii posterioras much like the parallel lines connect the upper and lower aspects of the letter Z. Two to 3 distraction devices were then installed after the Z-shaped osteotomy suture...
January 3, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28059543/emergent-conformal-symmetry-and-geometric-transport-properties-of-quantum-hall-states-on-singular-surfaces
#16
T Can, Y H Chiu, M Laskin, P Wiegmann
We study quantum Hall states on surfaces with conical singularities. We show that the electronic fluid at the cone tip possesses an intrinsic angular momentum, which is due solely to the gravitational anomaly. We also show that quantum Hall states behave as conformal primaries near singular points, with a conformal dimension equal to the angular momentum. Finally, we argue that the gravitational anomaly and conformal dimension determine the fine structure of the electronic density at the conical point. The singularities emerge as quasiparticles with spin and exchange statistics arising from adiabatically braiding conical singularities...
December 23, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/28059538/amplitude-modulated-bursting-a-novel-class-of-bursting-rhythms
#17
Theodore Vo, Mark A Kramer, Tasso J Kaper
We report on the discovery of a novel class of bursting rhythms, called amplitude-modulated bursting (AMB), in a model for intracellular calcium dynamics. We find that these rhythms are robust and exist on open parameter sets. We develop a new mathematical framework with broad applicability to detect, classify, and rigorously analyze AMB. Here we illustrate this framework in the context of AMB in a model of intracellular calcium dynamics. In the process, we discover a novel family of singularities, called toral folded singularities, which are the organizing centers for the amplitude modulation and exist generically in slow-fast systems with two or more slow variables...
December 23, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/28058653/achievement-of-diverse-domain-structures-in-soft-magnetic-thin-film-through-adjusting-intrinsic-magnetocrystalline-anisotropy
#18
Juanying Jiao, Tao Wang, Tianyong Ma, Ying Wang, Fashen Li
Oriented soft magnetic hcp-Co1 - x Ir x films with a fixed thickness of 120 nm were fabricated. All prepared films exhibit soft magnetic properties but various magnetocrystalline anisotropies with the variation of Ir content. The measured data shows that diverse domain structures including the Néel wall, Bloch wall, and stripe domains present in a fixed film thickness. It is singular for the single-layer soft magnetic film to possess diverse domains in a fixed thickness. This phenomenon was explained by introducing intrinsic magnetocrystalline anisotropy energy into soft magnetic films rather than the structural parameters of the film, inner stress, and microstructure effect...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28057609/intellicare-an-eclectic-skills-based-app-suite-for-the-treatment-of-depression-and-anxiety
#19
David C Mohr, Kathryn Noth Tomasino, Emily G Lattie, Hannah L Palac, Mary J Kwasny, Kenneth Weingardt, Chris J Karr, Susan M Kaiser, Rebecca C Rossom, Leland R Bardsley, Lauren Caccamo, Colleen Stiles-Shields, Stephen M Schueller
BACKGROUND: Digital mental health tools have tended to use psychoeducational strategies based on treatment orientations developed and validated outside of digital health. These features do not map well to the brief but frequent ways that people use mobile phones and mobile phone apps today. To address these challenges, we developed a suite of apps for depression and anxiety called IntelliCare, each developed with a focused goal and interactional style. IntelliCare apps prioritize interactive skills training over education and are designed for frequent but short interactions...
January 5, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28056624/garlic-and-ginger-are-not-like-apples-and-oranges-effects-of-mass-count-information-on-the-production-of-noun-phrases-in-english
#20
Nora Fieder, Lyndsey Nickels, Trudy Krajenbrink, Britta Biedermann
In the research presented here a picture-word interference paradigm was used to investigate how grammatical mass/count (countability) information is processed during noun phrase production in English. Levelt, Roelofs and Meyer's (1999) theory distinguishes between two different types of lexical-syntactic information: variable extrinsic lexical-syntactic features such as number (singular, plural) and fixed intrinsic lexical-syntactic properties such as grammatical gender (e.g., masculine, feminine). Previous research using the picture-word interference paradigm has found effects of distractor lexical-syntactic congruency for grammatical gender but no congruency effects for number...
January 5, 2017: Quarterly Journal of Experimental Psychology: QJEP
keyword
keyword
55810
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"