PubMed Journals Articles About "High-Resolution Anoscopy Perceived Discomfort Study" RSS

05:42 EST 22nd January 2020 | BioPortfolio

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Showing "High Resolution Anoscopy Perceived Discomfort Study" PubMed Articles 1–25 of 82,000+

Assessment of Anal Cancer Screening Tools in Detecting High-Grade Anal Squamous Intraepithelial Lesions in Women.

The aim of the study was to evaluate the validity of anal cytology against high-resolution anoscopy in the detection of anal high-grade squamous intraepithelial lesions (HSILs) among women in a clinical setting in Puerto Rico, alone and in combination with high-risk human papillomavirus (HR-HPV) typing.

Early Detection of Anal High-Grade Squamous Intraepithelial Lesion: Do We Have an Impact on Progression to Invasive Anal Carcinoma?

Anal high-grade squamous intraepithelial lesion (HSIL) may precede invasive cancer and can be detected clinically or during high-resolution anoscopy (HRA). The aims of this study were to compare the characteristics of HSIL discovered by HRA or in a surgical specimen without clinically visible lesion when diagnosed versus macroscopic HSIL when first diagnosed and then to compare their progression to invasive cancer.

Characterization of perdeuterated HiPIP with high-resolution X-ray crystallography.

Perdeuteration in neutron crystallography is an effective method for determining the positions of hydrogen atoms in proteins. However, there is shortage of evidence assessing the high-resolution details of perdeuterated proteins are the same as those of non-deuterated proteins. In this study, we determined the X-ray structure of perdeuterated high-potential iron-sulfur protein (HiPIP) at a high resolution of 0.85 å resolution. The comparison of the non-deuterated and perdeuterated structures of HiPIP rev...

Implementation of and Early Outcomes From Anal Cancer Screening at a Community-Engaged Health Care Facility Providing Care to Nigerian Men Who Have Sex With Men.

Anal cancer risk is substantially higher among HIV-infected men who have sex with men (MSM) as compared with other reproductive-age adults, but screening is rare across sub-Saharan Africa. We report the use of high-resolution anoscopy (HRA) as a first-line screening tool and the resulting early outcomes among MSM in Abuja, Nigeria.

Distortion correction for high-resolution single-shot EPI DTI using a modified field-mapping method.

The widely used single-shot EPI (SS-EPI) diffusion tensor imaging (DTI) suffers from strong image distortion due to B inhomogeneity, especially for high-resolution imaging. Traditional methods such as the field-mapping method and the top-up method have various deficiencies in high-resolution SS-EPI DTI distortion correction. This study aims to propose a robust distortion correction approach, which combines the advantages of traditional methods and overcomes their deficiencies, for high-resolution SS-EPI DTI...

Environmental tobacco smoke (ETS) and hyperlipidemia modified by perceived work stress.

Accumulating evidence has shown that exposure to environmental tobacco smoke (ETS) is associated with cardiovascular diseases (CVDs) However, few studies have assessed both exposure to ETS and high-perceived work stress on hyperlipidemia. The aim of the present study is to assess the interaction effect of ETS exposure and high-perceived work stress on the risk of hyperlipidemia.

Perceived Control Moderates the Impact of Academic Stress on the Attention Process of Working Memory in Male College Students.

Academic stress is a common long-term stress among the student population and is known to impact working memory within the frontoparietal attention network. Perceived control is an individual variation that may play a buffering role between stress and overall adjustment. In this study, we addressed the moderating effects of perceived control between academic stress and working memory. Fifty-nine male college students participated in the study. Academic stress and perceived control were assessed before parti...

Versatility of high resolution ultrasonography in the assessment of granulomas and radIcular cysts: a comparative in vivo study.

To evaluate and compare the diagnostic potential of high resolution US with periapical radiographs (PR) and CBCT in assessing granulomas and radicular cysts.

Effects of perceived stress and resilience on suicidal behaviors in early adolescents.

Suicidal behaviors are significant public health issues. The aim of the current study is to examine the effects of perceived stress and resilience on suicidal ideation (SI), plan (SP), and attempt (SA) among early adolescents. A longitudinal study was conducted with data collected from 1035 junior high-school students at baseline and 1-year follow-up. Participants were assessed for suicidal behaviors, resilience, and perceived stress. Logistic regression was performed to analyze for the associations between...

Multi-resolution convolutional neural networks for fully automated segmentation of acutely injured lungs in multiple species.

Segmentation of lungs with acute respiratory distress syndrome (ARDS) is a challenging task due to diffuse opacification in dependent regions which results in little to no contrast at the lung boundary. For segmentation of severely injured lungs, local intensity and texture information, as well as global contextual information, are important factors for consistent inclusion of intrapulmonary structures. In this study, we propose a deep learning framework which uses a novel multi-resolution convolutional neu...

Q-ball - high resolution fiber tractography of language associated tracts-quantitative evaluation of applicability for glioma resections.

To date, fiber tractography (FT) is predominantly based on Diffusion Tensor Imaging (DTI). High angular resolution diffusion imaging (HARDI)-based reconstructions have become a focus of interest, enabling the resolution of intravoxel fiber crossing. However, experience with high resolution tractography (HRFT) for neurosurgical applications is still limited to a few reports. This prospectively designed feasibility study shares our initial experience using an analytical q-ball approach (QBI) for FT of languag...

Parental Phubbing and Adolescents' Depressive Symptoms: Self-Esteem and Perceived Social Support as Moderators.

Parental phubbing refers to the extent to which parents use or are distracted by their cell phone when they interact with their children. There has been growing scholarly interest in understanding the adverse effects of parental phubbing on adolescents' development. However, it is less clear whether parental phubbing potentially increases adolescents' depressive symptoms, to date, and the understanding of the factors which may affect this relationship is also limited. The current study, therefore, examined ...

Efficient de-noising of high-resolution fMRI using local and sub-band information.

High-resolution fMRI, useful for accurate brain mapping, suffers from low functional sensitivity at a reasonable acquisition time. Conventional smoothing techniques although reduce the noise and boost the sensitivity, but degrade the spatial resolution of fMRI.

Feasibility and Acceptability of a Brief Acupuncture Intervention for Service Members with Perceived Stress.

Given the role of perceived stress in disability and suicidality in the military, intervening early before service members become at risk for severe injuries, hospitalizations, and chronic disability could improve health outcomes. The purpose of this study was to explore the feasibility and acceptability of a standardized stress acupuncture (SSA) approach on perceived stress in U.S. military personnel. This study had the following aims: examine feasibility of recruitment for SSA and implementation of study ...

Three-Dimensional High-Resolution Esophageal Manometry Study of the Esophagogastric Junction in Patients with Achalasia.

A novel three-dimensional high-resolution esophageal manometry provides a dynamic 360° representation of the pressure at the esophagogastric junction.

Assessment of the perceived safety culture in the petrochemical industry in Japan: A cross-sectional study.

This study assessed the perceived safety culture among five petrochemical production companies in Japan. Current effects of the perceived safety culture on employee safety motivation and performance were also examined. A total of 883 workers from the five petrochemical companies, which were located in the Chugoku region of Japan, provided valid responses to the survey distributed by email. Structural equation modeling was used to evaluate the personnel safety culture in these industries. The endogenous vari...

Self-reported Sleep Quality and Bone Outcomes in Older Adults: Findings from the Hertfordshire Cohort Study.

Sleep duration may be associated with risk of osteoporosis, with suggestions that too little or indeed too much sleep may be detrimental to bone health. In this study, we considered whether perceived sleep quality is also associated with bone health in older adults. We explored this association in a cohort of 443 older community-dwelling UK adults. Sleep quality was assessed using the Pittsburgh Sleep Quality Index (PSQI); poor sleep quality was defined as > 5 on this score system. Bone density, shape a...

The diagnostic value of X-ray, endoscopy, and high-resolution manometry for hiatal hernia: a systematic review and meta-analysis.

Hiatal hernia (HH) has been found in a large number of people, but there has been no unified way to diagnose it. The aim of this study was to compare the diagnostic efficiency of X-ray, endoscopy and high-resolution manometry (HRM) in the diagnosis of HH using surgical diagnosis of HH as the gold standard.

Three-dimensional high-resolution simultaneous quantitative mapping of the whole brain with 3D-QALAS: An accuracy and repeatability study.

Previous methods for the quantification of brain tissue properties by magnetic resonance imaging were mainly based on two-dimensional acquisitions and were thus limited to a relatively low resolution in the slice direction compared to three-dimensional (3D) acquisitions. The 3D-quantification using an interleaved Look-Locker acquisition sequence with a T2 preparation pulse (3D-QALAS) sequence may allow for simultaneous acquisition of relaxometry parameters in high spatial resolution.

Differences in reported sun protection practices, skin cancer knowledge, and perceived risk for skin cancer between rural and urban high school students.

The purpose of the current study was to evaluate differences in reported use of sun protection, tanning behaviors, skin cancer-related knowledge, and perceived risk between rural and urban high school students in a geographic area with high rates of melanoma.

What determines perceived income justice? Evidence from the German TwinLife study.

Whether individuals perceive their income as being fair has far-reaching consequences in the labor market and beyond. Yet we know little about the determinants of variation in perceived income justice across individuals. In this paper, we ask to what extent differences in genes are related to variation in individuals' perceived income justice, and whether there is a gene-environment component. Analyzing data from the German TwinLife study, we find that more than 30% of individuals' perceived income justice ...

A Robust Encoding Scheme for Delivering Artificial Sensory Information via Direct Brain Stimulation.

Innovations for creating somatosensation via direct electrical stimulation of the brain will be required for the next generation of bi-directional cortical neuroprostheses. The current lack of tactile perception and proprioceptive input likely imposes a fundamental limit on speed and accuracy of brain-controlled prostheses or re-animated limbs. This study addresses the unique challenge of identifying a robust, high bandwidth sensory encoding scheme in a high-dimensional parameter space. Previous studies dem...

Preliminary study on fine structures of subcortical nuclei in rhesus monkeys by 9.4 T MRI.

Changes in fine structures of the brain over a life span can have robust effects on neural activity and brain function, which both play crucial roles in neurodegenerative diseases. Clinically, however, low-resolution MRI only provides limited information about fine brain structures. Here, using high-resolution 9.4 T MRI, we established a set of structural images and explored the fine structures of the claustrum, hippocampus, amygdala complex, and subregions of the amygdala complex (BLA, including lateral, b...

Association between perceived risk of harm and self-reported binge drinking, cigarette smoking, and marijuana smoking in young adults.

Evaluate the association between perceived risk of harm and self-reported binge drinking, cigarette smoking, and marijuana smoking among college students. Participants were 599 students (ages 19-28) at a large Midwestern university recruited from October 2015 to December 2017. Hurdle regression was used to test the relationship between perceived risk of harm from substance use (i.e., binge drinking, cigarette smoking, and marijuana smoking), and self-reported use. Demographic characteristics were tested as ...

Super-resolution recurrent convolutional neural networks for learning with multi-resolution whole slide images.

We study a problem scenario of super-resolution (SR) algorithms in the context of whole slide imaging (WSI), a popular imaging modality in digital pathology. Instead of just one pair of high- and low-resolution images, which is typically the setup in which SR algorithms are designed, we are given multiple intermediate resolutions of the same image as well. The question remains how to best utilize such data to make the transformation learning problem inherent to SR more tractable and address the unique chall...

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