PubMed Journals Articles About "Prominent Investigator Exits Mueller Team" RSS

19:08 EDT 20th June 2018 | BioPortfolio

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Showing "Prominent investigator exits Mueller team" PubMed Articles 1–25 of 1,900+

Factorization of the coherency matrix of polarization optics.

We show that the coherency matrix associated with a general depolarizing Mueller matrix can be factorized into the product of a matrix, the coherency matrix factor, and its conjugate transpose. The coherency matrix factor contains all the information in the Mueller matrix, and directly shows useful properties in an illustrative fashion. Propagation through a nondeterministic uniform medium is analyzed. Some examples for simple systems are shown, and an experimental Mueller matrix is considered. The coherenc...

Experimental evidence for partial spatial coherence in imaging Mueller polarimetry.

We demonstrate experimentally the validity of the partial spatial coherence formalism in Mueller polarimetry and show that, in a finite spatial resolution experiment, the measured response is obtained through convolving the theoretical one with the instrument function. The reported results are of primary importance for Mueller imaging systems.

Experimental limits for eigenvalue calibration in liquid-crystal Mueller-matrix polarimeters.

A numerical study is carried out to find the experimental conditions necessary for the eigenvalue calibration procedure to work correctly in a liquid-crystal variable-retarder-based Mueller-matrix polarimeter. Using the error between the simulated experimental Mueller matrix in a polarimeter with errors and the expected ideal Mueller matrices for four calibration samples, the maximum experimental errors are estimated for a successful eigenvalue calibration. It is found that the retarder axes' orientations h...

Polar decompositions of negative-determinant Mueller matrices featuring nondiagonal depolarizers.

We generalize an existing algebraic procedure for the polar decomposition of Mueller matrices with negative determinants [Opt. Commun.281, 2406 (2008)OPCOB80030-401810.1016/j.optcom.2007.12.076] to the case of nondiagonal depolarizer matrix factors. The generalized procedure is applied to experimental Mueller matrices illustrating its potential for the phenomenological interpretation of complex polarimetric data.

On the depolarization in granular thin films: a Mueller-matrix approach.

We describe a general method to disclose the information hidden in Mueller matrices experimentally obtained from depolarizing samples. Although spectroscopic Mueller-matrix ellipsometry allows for a model-free characterization of inhomogeneous samples, i.e., independently from any assumption on the sample structure, the interpretation of the obtained results is often challenging. The proposed method combines three different decomposition techniques applied to the measured Mueller matrices in transmission an...

Editorial: New Investigator Review Awards The 2018 New Investigator Awards.

Full four-dimensional and reciprocal Mueller matrix bidirectional reflectance distribution function of sintered polytetrafluoroethylene.

We measured the Mueller matrix bidirectional reflectance distribution function (BRDF) of a sintered polytetrafluoroethylene (PTFE) sample over the scattering hemisphere for six incident angles (0°-75° in 15° steps) and for four wavelengths (351 nm, 532 nm, 633 nm, and 1064 nm). The data for each wavelength were fit to a phenomenological description for the Mueller matrix BRDF, which is an extension of the bidirectional surface scattering modes developed by Koenderink and van Doorn [J. Opt. Soc. Am. A.15,...

Job satisfaction among mental healthcare professionals: The respective contributions of professional characteristics, team attributes, team processes, and team emergent states.

The aim of this study was to determine the respective contribution of professional characteristics, team attributes, team processes, and team emergent states on the job satisfaction of 315 mental health professionals from Quebec (Canada).

Team Teaching in Nursing Education.

Team teaching is used to describe a broad array of teaching configurations that offer benefits to students that cannot be duplicated by a single educator. Although articles and books have been written to describe team teaching in other fields, little has been written about team teaching in nursing. In a field with clinical application, team teaching offers more richness in perspective when there are two complimentary educators teaching the content. The opportunity to learn from a colleague, while guiding st...

Team composition and the ABCs of teamwork.

In teams, some combinations of people work together better than others. A large body of literature with a rich history suggests that the configuration of team member attributes, called team composition, has a fundamental influence on teamwork. Team composition shapes the emergence of affective states, behavioral processes, and cognitive states (the ABCs of teamwork), which ultimately affect how teams meet their objectives. The purpose of this article is to describe what is known about team composition and i...

Proposal of a Classification System for the Assessment and Treatment of Prominent Ear Deformity.

Prominent ear is the most common external ear deformity. To comprehensively treat prominent ear deformity, adequate comprehension of its pathophysiology is crucial. In this article, we analyze cases of prominent ear and suggest a simple classification system and treatment algorithm according to pathophysiology.

Interdisciplinary team science and the public: Steps toward a participatory team science.

Interdisciplinary team science involves research collaboration among investigators from different disciplines who work interdependently to share leadership and responsibility. Although over the past several decades there has been an increase in knowledge produced by science teams, the public has not been meaningfully engaged in this process. We argue that contemporary changes in how science is understood and practiced offer an opportunity to reconsider engaging the public as active participants on teams and...

Graded pitch profile for the helicoidal broadband reflector and left-handed circularly polarizing cuticle of the scarab beetle Chrysina chrysargyrea.

The cuticle of the beetle Chrysina chrysargyrea reflects left-handed polarized light in the broad spectral range from 340 to 1000 nm. Interference oscillations in the experimental Mueller-matrix spectroscopic ellipsometry data reveal that transparent materials comprise the cuticle. A spectral analysis of the interference oscillations makes evident that the pitch profile across the cuticle is graded. The graded pitch and effective refractive indices are determined through non-linear regression analysis of ...

A Measure of Team Resilience: Developing the Resilience at Work Team Scale.

This study develops, and initial evaluates, a new measure of team-based resilience for use in research and practice.

Factors Influencing Team Behaviors in Surgery: A Qualitative Study to Inform Teamwork Interventions.

Surgical excellence demands teamwork. Poor team behaviors negatively affect team performance and are associated with adverse events and worse outcomes. Interventions to improve surgical teamwork focusing on frontline team members' nontechnical skills have proliferated but shown mixed results. Literature on teamwork in organizations suggests that team behaviors are also contingent on psycho-social, cultural and organizational factors. This study examines factors influencing surgical team behaviors in order t...

Polarimetric learning: a Siamese approach to learning distance metrics of algal Mueller matrix images.

Polarimetric measurements are becoming increasingly accurate and fast to perform in modern applications. However, analysis on the polarimetric data usually suffers from its high-dimensional nature spatially, temporally, or spectrally. This paper associates polarimetric techniques with metric learning algorithms, namely, polarimetric learning, by introducing a distance metric learning method called Siamese network that aims to learn good distance metrics of algal Mueller matrix images in low-dimensional feat...

So You Want To Be a Principal Investigator.

Therapeutic trials represent the front line of clinical progress, where the rubber meets the road. The conduct of clinical trials requires unique skills, innate as well as learned, on the part of the investigators who conduct these studies. Often such skills are acquired on the job and are passed on from mentor to junior investigator. However, over the years, the role of the principal investigator (PI) has evolved into a vast list of roles and responsibilities that cannot readily be conveyed through a hands...

Using Teams to Improve Outcomes and Performance.

Mastering the use of teams in healthcare organizations can maximize outcomes and optimize the use of resources. Most work in healthcare organizations is done by teams, whether it's the clinical team taking care of patients on a unit, the leadership team accountable for operations of the organization, or a team formed to solve a specific problem, improve quality, or plan an event. Effective teams make organizations successful; ineffective teams can create more problems than they solve. This article describes...

Neuroergonomics: Quantitative Modeling of Individual, Shared, and Team Neurodynamic Information.

The aim of this study was to use the same quantitative measure and scale to directly compare the neurodynamic information/organizations of individual team members with those of the team.

Comparative sensitivity and inhibitor tolerance of GlobalFiler® PCR Amplification and Investigator® 24plex QS kits for challenging samples.

In cases such as mass disasters or missing persons, human remains are challenging to identify as they may be fragmented, burnt, been buried, decomposed, and/or contain inhibitory substances. This study compares the performance of a relatively new STR kit in the US market (Investigator® 24plex QS kit; Qiagen) with the GlobalFiler® PCR Amplification kit (Thermo Fisher Scientific) when genotyping highly inhibited and low level DNA samples. In this study, DNA samples ranging from 1 ng to 7.8 pg were ampli...

A taxonomy and rating system to measure situation awareness in resuscitation teams.

Team SA involves a common perspective between two or more individuals regarding current environmental events, their meaning, and projected future status. Team SA has been theorized to be important for resuscitation team effectiveness. Accordingly, multidimensional frameworks of observable behaviors relevant to resuscitation teams are needed to understand more deeply the nature of team SA, its implications for team effectiveness, and whether it can be trained. A seven-dimension team resuscitation SA framewor...

Paediatric team handover: a time to learn?

Paediatric team handovers provide medical professionals and students with the opportunity to exchange clinically relevant information about patients. This study explored the extent to which learning opportunities existed and were utilised within paediatric team handovers in New Zealand secondary hospitals.

Foundations of teamwork and collaboration.

The term teamwork has graced countless motivational posters and office walls. However, although teamwork is often easy to observe, it is somewhat more difficult to describe and yet more difficult to produce. At a broad level, teamwork is the process through which team members collaborate to achieve task goals. Teamwork refers to the activities through which team inputs translate into team outputs such as team effectiveness and satisfaction. In this article, we describe foundational research underlying curre...

Designing a more efficient, effective and safe Medical Emergency Team (MET) service using data analysis.

Hospitals have seen a rise in Medical Emergency Team (MET) reviews. We hypothesised that the commonest MET calls result in similar treatments. Our aim was to design a pre-emptive management algorithm that allowed direct institution of treatment to patients without having to wait for attendance of the MET team and to model its potential impact on MET call incidence and patient outcomes.

Are multidisciplinary teams a legal shield or just a clinical comfort blanket?

Discussion about and management of patients through multidisciplinary team meetings has become the standard of care in medical and surgical specialties, but does the team nature of these provide a legal shield for clinicians? This article discusses the legal implications of decision making within a multidisciplinary team.

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