161,428 results match your criteria orientation

Psychometric evaluation of the Muscle Dysmorphic Disorder Inventory (MDDI) among cisgender gay men and cisgender lesbian women.

Body Image 2021 May 4;38:241-250. Epub 2021 May 4.

Department of Pediatrics, University of California, San Francisco, San Francisco, CA, USA. Electronic address:

Despite increasing empirical interest in muscle dysmorphia (MD), a dearth of research has assessed this construct in sexual minority populations. In particular, the psychometric properties of one of the most widely used measures of MD symptoms-the Muscle Dysmorphic Disorder Inventory (MDDI)-have not been evaluated in sexual minority populations despite emerging evidence suggesting differential risk for MD symptoms across sexual orientation groups. In this study, we assessed the psychometric properties of the MDDI in a sample of 715 cisgender gay men and 404 cisgender lesbian women ages 18-50 years who participated in a large-scale national longitudinal cohort study of sexual and gender minority adults. Read More

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Scrib module proteins: control of epithelial architecture and planar spindle orientation.

Int J Biochem Cell Biol 2021 May 4:106001. Epub 2021 May 4.

Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai, Japan; Graduate School of Life Sciences, Tohoku University, Sendai, Japan. Electronic address:

The Scrib module proteins, Scrib, Dlg, and Lgl, are conserved regulators of cell polarity in diverse biological contexts. Originally discovered as neoplastic tumor suppressors in the fruit fly Drosophila melanogaster, disruption of Scrib module components leads to tumorigenesis in mammalian epithelia and is associated with human cancers. With multiple protein interacting domains, Scrib module proteins function as determinants of basolateral identity in epithelial cells with apical-basal polarity while acting as signaling platform scaffold proteins. Read More

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Sexual orientation and functional limitations: Cross-sectional analyses from the Adult Psychiatric Morbidity Survey.

Arch Phys Med Rehabil 2021 May 4. Epub 2021 May 4.

The Cambridge Centre for Sport and Exercise Sciences, Anglia Ruskin University, Cambridge, UK.

Objective: To assess the association between sexual orientation and functional limitations in a large representative sample of the English population.

Design: Cross-sectional.

Setting: Data were from the 2007 Adult Psychiatric Morbidity Survey (APMS). Read More

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Map-like use of Earth's magnetic field in sharks.

Curr Biol 2021 May 3. Epub 2021 May 3.

Florida State University, National High Magnetic Field Laboratory, 1800 E. Paul Dirac Drive, Tallahassee, FL 32310, USA.

Migration is common in marine animals, and use of the map-like information of Earth's magnetic field appears to play an important role. While sharks are iconic migrants and well known for their sensitivity to electromagnetic fields, whether this ability is used for navigation is unresolved. We conducted magnetic displacement experiments on wild-caught bonnetheads (Sphyrna tiburo) and show that magnetic map cues can elicit homeward orientation. Read More

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Structures of M(CH) (M = Ti, V) Based on Vibrational Spectroscopy and Density Functional Theory.

J Phys Chem A 2021 May 7. Epub 2021 May 7.

Department of Chemistry, University of Massachusetts, Amherst, Amherst, Massachusetts 01003, United States.

Photofragment spectroscopy is used to measure the vibrational spectra of M(CH)(Ar) and M(CH) (M = Ti, V; = 1-4) in the C-H stretching region (2550-3100 cm). Spectra were measured by monitoring the loss of Ar from M(CH)(Ar) and loss of CH from the larger clusters. The experimental spectra are then compared to simulations done at the B3LYP/6-311++G(3df,3pd) level of theory to identify the structures of the ions. Read More

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"Why would you not listen? It is like being given the winning lottery numbers and deciding not to take them": semi-structured interviews with post-acute myocardial infarction patients and their significant others exploring factors that influence participation in cardiac rehabilitation and long-term exercise training.

Disabil Rehabil 2021 May 7:1-11. Epub 2021 May 7.

Institute of Nursing and Health Research, Ulster University, Newtownabbey, UK.

Purpose: Despite the clinical benefits, coronary artery disease patient participation rates in cardiac rehabilitation (CR) and long-term exercise are poor. This study explored the factors related to participation in these interventions from the perspectives of post-acute myocardial infarction (AMI) patients and their significant others.

Methods: Semi-structured interviews were performed with post-AMI patients (number () = 10) and their significant others ( = 10) following phase-III and phase-IV CR. Read More

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Lysozyme Adsorption on Different Functionalized MXenes: A Multiscale Simulation Study.

Langmuir 2021 May 7. Epub 2021 May 7.

School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab for Green Chemical Product Technology, South China University of Technology, Guangzhou 510640, P. R. China.

Recently, MXenes, due to their abundant advantages, have been widely applied in energy storage, separation, catalysis, biosensing, et al. In this study, parallel tempering Monte Carlo and molecular dynamics methods were performed to investigate lysozyme adsorption on different functionalized TiCT (-O, -OH, and -F). The simulation results show that lysozyme can adsorb effectively on TiCT surfaces, and the order of interaction strength is TiCO > TiCF > TiC(OH). Read More

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Outside the Box: An Experienced Registered Nurse Orientation Redesign.

J Nurses Prof Dev 2021 May-Jun 01;37(3):147-150

Nurse educators play an important role in implementing changes within hospital orientation, supporting a learner-focused orientation. Utilizing different learning styles and delivery methods, an orientation can promote an environment where registered nurses are active participants and guide the learning. This article discusses the process of incorporating multiple learning styles and modalities into an experienced registered nurse orientation program, creating a learner-centered environment promoting engagement, increased satisfaction, and retention of experienced staff. Read More

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Confirmatory factor analysis and psychometric properties of the Persian version of the Multidimensional Body-Self Relations Questionnaire-Appearance Scales (MBSRQ-AS) in women with polycystic ovary syndrome.

Eat Weight Disord 2021 May 7. Epub 2021 May 7.

Student Research Commitee, School of Nursing & Midwifery, Iran University of Medical Sciences, Tehran, Iran.

Purpose: Body image is a multidimensional and complex psychological construct. Since the Multidimensional Body Self-Relation Questionnaire-Appearance Scale (MBSRQ-AS) is a questionnaire that measures body image as a multidimensional construct. This study aimed to translate and evaluate the psychometric properties of the Persian version of MBSRQ-AS. Read More

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Spatiotopic updating across saccades in the absence of awareness.

J Vis 2021 May;21(5)

State Key Lab of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China.

Despite the continuously changing visual inputs caused by eye movements, our perceptual representation of the visual world remains remarkably stable. Visual stability has been a major area of interest within the field of visual neuroscience. The early visual cortical areas are retinotopic-organized, and presumably there is a retinotopic to spatiotopic transformation process that supports the stable representation of the visual world. Read More

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Plate Positioning Affects the Pressure on the Axillary Nerve Following a Deltopectoral Approach.

Acta Chir Orthop Traumatol Cech 2021 ;88(2):153-157

Istanbul Medeniyet University, Department of Orthopaedic Surgery and Traumatology, Istanbul, Turkey.

PURPOSE OF THE STUDY To investigate the pressure levels on the axillary nerve at different plate positions after plate fixation of a proximal humerus fracture. MATERIAL AND METHODS Eight fresh-frozen cadaveric specimens were used. The plates were applied on the lateral side of the humerus. Read More

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January 2021

[Minimally Invasive Hallux Valgus Surgery: First Experience].

Acta Chir Orthop Traumatol Cech 2021 ;88(2):137-143

Ortopedická klinika 1. lékařské fakulty Univerzity Karlovy a Fakultní nemocnice v Motole, Praha.

PURPOSE OF THE STUDY The Minimally Invasive Chevron Akin (MICA) is a percutaneous technique used to correct hallux valgus deformity. The combination of distal osteotomy of the first metatarsal and the proximal phalanx of the big toe stabilized with internal fixation was used over the last decade. The retrospective study presents the results of measurements performed on preoperative and postoperative X-rays and offers a comparison with conventional osteotomies. Read More

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January 2021

Visual-Electromagnetic System: A Novel Fusion-based Monocular Localization, Reconstruction, and Measurement for Flexible Ureteroscopy.

Int J Med Robot 2021 May 7. Epub 2021 May 7.

Biosensor National Special Laboratory, Key Laboratory of Biomedical Engineering of Ministry of Education, College of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou, 310027, P. R. China.

Background: During flexible ureteroscopy (FURS), surgeons may lose orientation due to intrarenal structural similarities and complex shape of the pyelocaliceal cavity. Decision-making required after initially misjudging stone size will also increase the operative time and risk of severe complications.

Methods: A intraoperative navigation system based on electromagnetic tracking (EMT) and simultaneous localization and mapping (SLAM) was proposed to track the tip of the ureteroscope and reconstruct a dense intrarenal three-dimensional (3D) map. Read More

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Validating pore size estimates in a complex microfiber environment on a human MRI system.

Magn Reson Med 2021 May 7. Epub 2021 May 7.

Cardiff University Brain Research Imaging Centre (CUBRIC), Cardiff University, Cardiff, United Kingdom.

Purpose: Recent advances in diffusion-weighted MRI provide "restricted diffusion signal fraction" and restricting pore size estimates. Materials based on co-electrospun oriented hollow cylinders have been introduced to provide validation for such methods. This study extends this work, exploring accuracy and repeatability using an extended acquisition on a 300 mT/m gradient human MRI scanner, in substrates closely mimicking tissue, that is, non-circular cross-sections, intra-voxel fiber crossing, intra-voxel distributions of pore-sizes, and smaller pore-sizes overall. Read More

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Performances on the Montreal Cognitive Assessment Along the Cardiovascular Disease Continuum.

Arch Clin Neuropsychol 2021 May 7. Epub 2021 May 7.

Preventive Medicine and Physical Activity Centre and Research Center, Montreal Heart Institute, Montreal, Canada.

: Cardiovascular diseases involve a continuum starting with risk factors, which can progress to coronary heart disease and eventually, to heart failure. Cognitive impairment (CI) is observed as early as cardiovascular risk factors, and in up to 50% of patients with heart failure. Because CI in cardiovascular disease is linked to poorer clinical outcomes, early detection is essential. Read More

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The effects of COVID-19 on perceived intergroup competition and negative intergroup outcomes.

J Soc Psychol 2021 May 7:1-16. Epub 2021 May 7.

University of Rochester.

This research examined the effects of the onset of the COVID-19 pandemic on perceived Black-White intergroup competition and negative intergroup psychological outcomes. Two datasets (collected before [2018] and after the onset of [April, 2020] COVID-19) were combined ( = 2,131) for this research. The data provided support for the hypothesis that perceptions of Black-White intergroup competition, and subsequently perceptions of discrimination, behavioral avoidance, intergroup anxiety, and interracial mistrust would be higher after the onset of COVID-19. Read More

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KATANIN and cortical microtubule organization have a pivotal role in early pollen tube guidance.

Plant Signal Behav 2021 May 7:1921992. Epub 2021 May 7.

Laboratoire de Reproduction et Développement des Plantes, Université de Lyon, ENS de Lyon, UCBL, CNRS, INRAE, Allée d'Italie, France.

Following pollen deposition on the receptive surface of the stigma, pollen germinates a tube that carries male gametes toward the ovule where fertilization occurs. As soon as it emerges from the pollen grain, the pollen tube has to be properly guided through the pistil tissues so as to reach the ovule and ensure double fertilization. Chemical attractants, nutrients as well as receptor kinase-dependent signaling pathways have been implicated in this guidance. Read More

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Deciphering the evolution of the ovule genetic network through expression analyses in Gnetum gnemon.

Ann Bot 2021 May 7. Epub 2021 May 7.

The Graduate Center, City University of New York, New York, NY, USA.

Backgound And Aims: The ovule is a synapomorphy of all seed plants (gymnosperms and angiosperms), however there are some striking differences in ovules among the major seed plant lineages such as the number of integuments or the orientation of the ovule. The genetics involved in ovule development has been well studied in the model species, Arabidopsis thaliana, which has two integuments and anatropous orientation. This study is approached from what is known in Arabidopsis, focusing on the expression patterns of homologs of four genes known to be key for the proper development of the integuments in Arabidopsis: AINTEGUMENTA (ANT), BELL1, (BEL1), KANADIs (KANs) and UNICORN (UCN). Read More

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The Impact of Locomotor Speed on the Human Metatarsophalangeal Joint Kinematics.

Front Bioeng Biotechnol 2021 20;9:644582. Epub 2021 Apr 20.

Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun, China.

This paper aims to further our previous study to investigate the effect of speed on the human metatarsophalangeal (MP) joint kinematics during running on level ground. The 3D motion of the foot segments was captured by a twelve-camera motion analysis system, and the ground reaction forces and moments were recorded by using a six-force plate array. The relative movement between the tarsometatarsi (hindfoot) and phalanges (forefoot) segments were recorded to obtain the 3D orientation and position of the functional axis (FA) of the MP joint. Read More

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An Investigation Into the Role of Strain and Structure on Vascular Smooth Muscle Cell Growth.

Front Bioeng Biotechnol 2021 20;9:641794. Epub 2021 Apr 20.

Trinity Centre for Biomedical Engineering, Trinity College Dublin, Trinity Biomedical Sciences Institute, Dublin, Ireland.

The orientation of vascular cells can greatly influence the mechanical properties and functionality of soft vascular tissues. How cell orientation mediates the growth response of cells is of critical importance in understanding the response of soft tissues to mechanical stimuli or injury. To date, considerable evidence has shown that cells align with structural cues such as collagen fibers. Read More

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Synthesis of Ni/nano-AlO coatings by brush plating with magnetic fields.

R Soc Open Sci 2021 Mar 24;8(3):202089. Epub 2021 Mar 24.

Institute of Surface/Interface Science and Technology, Key Laboratory of Superlight Material and Surface Technology of Ministry of Education, Harbin Engineering University, Harbin 150001, People's Republic of China.

In the process of electrodeposition, the magnetic field would generate the magneto hydrodynamic (MHD) effect, which affects the flow and mass transfer of hydrogen evolution. Thus, the performance of electrodeposition coatings will be affected. In this work, Ni/nano-AlO coatings prepared by brush plating with magnetic fields were studied. Read More

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Small Dysplastic Oral Leucoplakia in a Smoking Woman: a Case Report.

J Oral Maxillofac Res 2021 Jan-Mar;12(1):e5. Epub 2021 Mar 31.

Department of Dentistry, State University of Ponta Grossa, Ponta GrossaBrazil.

Background: Oral leucoplakia is clinical term used to describe white plaques, and that is part of the group of oral potentially malignant disorders. Leucoplakia may show epithelial dysplasia, mainly in harder smoking patient. This case report discusses a small leucoplakia with dysplasia on the tongue's lateral border in a woman, diagnosed early after a routine clinical consultation. Read More

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Relationship Between Metabolic Syndrome and Cognitive Function: A Population-Based Study of Middle-Aged and Elderly Adults in Rural China.

Diabetes Metab Syndr Obes 2021 30;14:1927-1935. Epub 2021 Apr 30.

Department of Neurology, The Second People's Hospital of Wuhu, Wuhu, Anhui, People's Republic of China.

Introduction: To explore the relationship between metabolic syndrome (MetS) and cognitive impairment in a low-income and low-education population.

Methods: All residents aged ≥45 years in a low-income population in Tianjin, China, were eligible to participate in this study. The Mini-Mental State Examination (MMSE) scale was used to conduct a preliminary screening and assessment of the participants' cognitive statuses. Read More

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Intrasubunit and intersubunit steroid binding sites independently and additively mediate α1β2γ2L GABA receptor potentiation by the endogenous neurosteroid allopregnanolone.

Mol Pharmacol 2021 May 6. Epub 2021 May 6.

Anesthesiology, Washington University School of Medicine, United States

Prior work employing functional analysis, photolabeling, and X-ray crystallography have identified three distinct binding sites for potentiating steroids in the heteromeric GABA receptor. The sites are located in the membrane-spanning domains of the receptor at the β-α subunit interface ("Site I") and within the α ("Site II") and β subunits ("Site III"). Here, we have investigated the effects of mutations to these sites on potentiation of the rat α1β2γ2L GABA receptor by the endogenous neurosteroid allopregnanolone (3α5αP). Read More

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Inter-rater reliability in quality assurance (QA) of pediatric chest X-rays.

J Med Imaging Radiat Sci 2021 May 3. Epub 2021 May 3.

Department of Radiology, Children's Hospital of Philadelphia, 3401 Civic Center Blvd., Philadelphia, PA 19104, USA; Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA. Electronic address:

Purpose: The goal of the study is to determine the inter-rater agreement on multiple factors that were utilized to evaluate the quality of pediatric chest X-ray exams from different levels of healthcare provision in an African setting.

Methods: The image quality of pediatric chest X-rays from 3 South African medical centers of varying level of healthcare service were retrospectively assessed by 3 raters for 12 quality factors including: (1) absent body parts; (2) under inspiration; (3) patient rotation; (4) scapula in the way; (5) patient kyphosis/lordosis; (6) artefact/foreign body; (7) central vessel visualization; (8) peripheral vessels visualization; (9) poor collimation; and (10) trachea and bronchi visualization; (11) post-cardiac vessel visualization; and (12) absent or wrong image orientation. Analysis was performed using the Brennan--Prediger coefficient of agreement for inter-rater reliability and Cochran's Q statistic and McNemar's test for inter-rater bias. Read More

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Preference for patient-centered communication among the citizens of the Visegrad countries.

Patient Educ Couns 2021 Apr 15. Epub 2021 Apr 15.

Department of Health Systems Management and Quality Management for Health Care, Faculty of Public Health, University of Debrecen, Debrecen, Hungary. Electronic address:

Objectives: The aim of the study was to investigate and compare the preferences that citizens of four Visegrad countries hold concerning the communication between patient and provider.

Methods: The patient-practitioner orientation scale was used on a general population in our research, which consists of the Sharing and Caring subscales and assesses patient-centered or doctor-centered orientation toward communication. The statistical analysis included 4000 respondents of citizens from the Czech Republic, Slovakia, Poland and Hungary. Read More

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Serial Tap Test of patients with idiopathic normal pressure hydrocephalus: impact on cognitive function and its meaning.

Fluids Barriers CNS 2021 May 6;18(1):22. Epub 2021 May 6.

Neurology Service, Internal Medicine Department, Hospital Clinics, Federal University of Paraná, Curitiba, Paraná, Brazil.

Background: Idiopathic normal pressure hydrocephalus (INPH) is characterized by gait disturbance, urinary incontinence and cognitive decline. Symptoms are potentially reversible and treatment is based on cerebrospinal fluid shunting. The tap test (TT) is used to identify patients that will benefit from surgery. Read More

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[Apps on Prescription in the Medical Office, but how? A Case-based Problem Outline of Medical-ethical Implications of DHA Usage].

Gesundheitswesen 2021 May 6. Epub 2021 May 6.

Institut für Geschichte und Ethik der Medizin, Technische Universität München, München, Deutschland.

Background: Since the approval of the digital care law (Digitale-Versorgung-Gesetz-DVG) on 19.12.2019, physicians have been able to prescribe digital health applications (DHA). Read More

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Results of a tri-national online survey on the current status of sports injury prevention among members of the German-Speaking Orthopaedic Sports Medicine Society (GOTS).

Sportverletz Sportschaden 2021 May 6. Epub 2021 May 6.

Department of Orthopedics, University Medical Center, Rostock, Germany.

Objectives:  To assess the current opinions and state of knowledge in primary sports injury prevention among members of the (.

Methods:  On 21 August 2019, a web-based questionnaire was sent to the members of the tri-national society Austria, Germany and Switzerland). The survey was online until 21 November 2019 and included twenty-two questions, which were divided into five sections: 1) general importance of prevention (n = 4), 2) specifications of the study population (n = 3), 3) implementation of prevention (n = 8), 4) improvement opportunities in prevention (n = 4) and 5) future research areas (n = 3). Read More

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A 3D personalized cardiac myocyte aggregate orientation model using MRI data-driven low-rank basis functions.

Med Image Anal 2021 Apr 9;71:102064. Epub 2021 Apr 9.

Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland. Electronic address:

Cardiac myocyte aggregate orientation has a strong impact on cardiac electrophysiology and mechanics. Studying the link between structural characteristics, strain, and stresses over the cardiac cycle and cardiac function requires a full volumetric representation of the microstructure. In this work, we exploit the structural similarity across hearts to extract a low-rank representation of predominant myocyte orientation in the left ventricle from high-resolution magnetic resonance ex-vivo cardiac diffusion tensor imaging (cDTI) in porcine hearts. Read More

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