Read by QxMD icon Read


Markus Köhler, Patrick Oßwald, Dominik Krueger, Ryan Whitside
This manuscript describes a high-temperature flow reactor experiment coupled to the powerful molecular beam mass spectrometry (MBMS) technique. This flexible tool offers a detailed observation of chemical gas-phase kinetics in reacting flows under well-controlled conditions. The vast range of operating conditions available in a laminar flow reactor enables access to extraordinary combustion applications that are typically not achievable by flame experiments. These include rich conditions at high temperatures relevant for gasification processes, the peroxy chemistry governing the low temperature oxidation regime or investigations of complex technical fuels...
February 19, 2018: Journal of Visualized Experiments: JoVE
Hannah Crawford, Heather Wilkinson
Life grids have been used in qualitative studies for the last two decades. They provide an activity which researcher and participant can focus their attention on, help build rapport, and reduce the control the researcher may hold within a session. Here we describe the novel use of life grids at the end of a data collection phase. Used in this previously unreported way, life grids assisted the closure of the data collection phase by summarizing the data collection and marking departure from the field. Creation of a life grid produced a tangible outcome, evidencing the work undertaken within the data collection period...
March 1, 2018: Qualitative Health Research
Berit Misund Dahl
AIMS: Government programs and the Norwegian Directorate of Health give public health nurses in Norway an explicit role in population-based health promotion and disease-prevention work. The aim of this paper is to explore Norwegian public health nurses' experiences with population-based work. METHODS: A phenomenological hermeneutic approach was adopted, involving face-to-face interviews with a purposeful sample of 23 public health nurses from urban and rural districts in two counties in Norway...
February 2018: Scandinavian Journal of Public Health
Robert W McConkey, Catherine Holborn
PURPOSE: Gay men with prostate cancer are an 'invisible species' in the research literature despite concerns that the impact of treatment may be more profound and in some ways unique compared to heterosexual men. The aim of this research is to explore the lived experience of gay men with prostate cancer. METHOD: In-depth interviews were recorded and transcribed verbatim from a purposive sample of eight gay men treated for prostate cancer in Ireland. A qualitative methodological approach employing Giorgi's descriptive phenomenological method was used to collect and analyse data...
April 2018: European Journal of Oncology Nursing: the Official Journal of European Oncology Nursing Society
Ozgul Erol, Serap Unsar, Lale Yacan, Meryem Pelin, Seda Kurt, Bülent Erdogan
PURPOSE: Uncontrolled pain, especially in patients with advanced cancer, affects quality of life negatively and causes negative physical and psychological conditions. The aim of this study was to explore the pain experiences of patients with advanced cancer and how they manage with pain, and to present a view of pain management approaches of nurses from the perspectives of the patients. METHODS: This was a qualitative descriptive study of sixteen hospitalized patients with advanced cancer...
April 2018: European Journal of Oncology Nursing: the Official Journal of European Oncology Nursing Society
Rob Stenner, Shea Palmer, Ralph Hammond
BACKGROUND: Person-centred approaches to care require clinicians to engage in trying to understand the full range of problems and concerns, treatment and investigation requests, and emotional and social issues that people bring to the consultation. If, however, the main issues of importance are not openly declared and discussed they cannot be addressed. This is likely to result in people receiving the care that clinicians think they need, rather than care based on individual needs and preferences...
March 10, 2018: Musculoskeletal Science & Practice
Sara Dell'Erba, David J Brown, Michael J Proulx
This case report offers rare insights into crossmodal responses to psychedelic drug use in a congenitally blind (CB) individual as a form of synthetic synesthesia. BP's personal experience provides us with a unique report on the psychological and sensory alterations induced by hallucinogenic drugs, including an account of the absence of visual hallucinations, and a compelling look at the relationship between LSD induced synesthesia and crossmodal correspondences. The hallucinatory experiences reported by BP are of particular interest in light of the observation that rates of psychosis within the CB population are extremely low...
March 14, 2018: Consciousness and Cognition
Reuben R W Wang, Bo Xing, Gabriel G Carlo, Dario Poletti
Nonlinear classical dissipative systems present a rich phenomenology in their "route to chaos," including period doubling, i.e., the system evolves with a period which is twice that of the driving. However, typically the attractor of a periodically driven quantum open system evolves with a period which exactly matches that of the driving. Here, we analyze a periodically driven many-body open quantum system whose classical correspondent presents period doubling. We show that by studying the dynamical correlations, it is possible to show the occurrence of period doubling in the quantum (period-one) steady state...
February 2018: Physical Review. E
J Harder, A Cacciuto
We use computer simulations to study the behavior of a mixture of large passive charged colloids in a suspension of smaller active dipolar Janus particles. We find that when a single charged colloid is present in solution, it acquires a rotational or translational motion depending on how the active dipoles self-assemble on its surface to form active complexes. The collective behavior of these complexes is quite remarkable, and includes swarming behavior and coherent macroscopic motion. We detail how the variety of different phenomenologies emerging in this system can ultimately be controlled by the strength of the active forces and the relative concentration of the two species...
February 2018: Physical Review. E
P R G Fernandes, J N Maki, L B Gonçalves, B F de Oliveira, H Mukai
In this work, the frequency dependence of the known mechano-optical effect which occurs in the micellar isotropic phases (I) of mixtures of potassium laurate (KL), decanol (DeOH), and water is investigated in the range from 200mHz to 200Hz. In order to fit the experimental data, a model of superimposed damped harmonic oscillators is proposed. In this phenomenological approach, the micelles (microscopic oscillators) interact very weakly with their neighbors. Due to shape anisotropy of the basic structures, each oscillator i (i=1,2,3,...
February 2018: Physical Review. E
Lisa Wirihana, Anthony Welch, Moira Williamson, Martin Christensen, Shannon Bakon, Judy Craft
BACKGROUND: Phenomenology is a useful methodological approach in qualitative nursing research. It enables researchers to put aside their perceptions of a phenomenon and give meaning to a participant's experiences. Exploring the experiences of others enables previously unavailable insights to be discovered. AIM: To delineate the implementation of Colaizzi's ( 1978 ) method of data analysis in descriptive phenomenological nursing research. DISCUSSION: The use of Colaizzi's method of data analysis enabled new knowledge to be revealed and provided insights into the experiences of nurse academics teaching on satellite campuses...
March 16, 2018: Nurse Researcher
Nicola Morrell-Scott
BACKGROUND: Collecting data in phenomenological research can be difficult and an often under-explored area of data collection is the use of diaries. AIM: To enable the reader to understand how diaries can be used to collect data in phenomenological research. DISCUSSION: The author discusses how diaries can provide unadulterated insight into a phenomenon. CONCLUSION: Diaries can be useful to gain a personal insight into a phenomenon...
March 16, 2018: Nurse Researcher
Somogy Varga
Often drawing on the phenomenological tradition, a number of philosophers and cognitive scientists working in the field of "embodied cognition" subscribe to the general view that cognition is grounded in aspects of its sensorimotor embodiment and should be comprehended as the result of a dynamic interaction of nonneural and neural processes. After a brief introduction, the paper critically engages Lakoff and Johnson's "conceptual metaphor theory" (CMT), and provides a review of recent empirical evidence that appears to support it...
March 13, 2018: Journal of Medicine and Philosophy
Heidi Lourens, Brian Watermeyer, Leslie Swartz
PURPOSE: Scholars agree that effective rehabilitation relies on a bedrock of reciprocity, relational trust, and authenticity. It is therefore essential for practitioners to develop insight into the complex dynamics within helping relationships. This study aims to provide an in-depth understanding of visually impaired students' experience of informal helping relationships. METHODS: Ten visually impaired students at a South African university participated in one of two semi-structured focus group interviews (six and four in each group, respectively) wherein we explored their experience of informal helping relationships...
March 16, 2018: Disability and Rehabilitation
Markus Basan
Elucidating strategies of resource allocation and metabolism is crucial for a better understanding of microbial phenotypes. In particular, uncovering the governing principles underlying these processes would be a crucial step for achieving a central aim of systems microbiology, which is to quantitatively predict phenotypes of microbial cells or entire populations in diverse conditions. Here, some of the key concepts for understanding cellular resource allocation and metabolism that have been suggested over the past years are reviewed...
March 12, 2018: Current Opinion in Microbiology
Sonique Sailsman, Marcella Rutherford, Melissa Tovin, Rosina Cianelli
AIM: The aim of this study was to explore the lived experience of RN-BSN English-as-a-second-language (ESL) nursing students who are engaged in learning online. BACKGROUND: Enrollment in RN-BSN degree completion programs has increased in the last several years, leading to a rise in program offerings online. There is limited research about the experiences of students who speak ESL. METHOD: Ten individual interviews were conducted incorporating van Manen's methodological steps for exploring the lived experience...
March 15, 2018: Nursing Education Perspectives
Brandon Jf Gheller, Phillip Joy, Daphne Lordly
PURPOSE: In Canada, dietitians serve a sex-diverse population despite the profession being predominately female (>95%). It is unknown why there are so few male dietitians. The objective of the present study was to explore the experience of the male dietitian, as a minority, in female-dominated dietetics. METHODS: Two semi-structured interviews were conducted, approximately 6 weeks apart, with Nova Scotian male dietitians. The interviews prompted participants to reflect on their experience of being a male dietitian...
March 15, 2018: Canadian Journal of Dietetic Practice and Research
Begoña Errasti-Ibarrondo, José Antonio Jordán-Sierra, Mercedes P Díez-Del-Corral, María Arantzamendi
AIMS: To offer a complete outlook in a readable easy way of van Manen's hermeneutic-phenomenological method to nurses interested in undertaking phenomenological research. BACKGROUND: Phenomenology, as research methodology, involves a certain degree of complexity. It is difficult to identify a single article or author which sets out the didactic guidelines that specifically guide research of this kind. In this context, the theoretical-practical view of Max van Manen's Phenomenology of Practice may be seen as a rigorous guide and directive on which researchers may find support to undertake phenomenological research...
March 15, 2018: Journal of Advanced Nursing
Julie A Reisz, Alexander S Barrett, Travis Nemkov, Kirk C Hansen, Angelo D'Alessandro
Proteins have been historically regarded as "nature's robots": Molecular machines that are essential to cellular/extracellular physical mechanical properties and catalyze key reactions for cell/system viability. However, these robots are kept in check by other protein-based machinery to preserve proteome integrity and stability. During aging, protein homeostasis is challenged by oxidation, decreased synthesis, and increasingly inefficient mechanisms responsible for repairing or degrading damaged proteins...
March 14, 2018: Expert Review of Proteomics
Andriy Yaroshchuk, Mykola P Bondarenko
Current-induced concentration polarization of nanoporous media is explored theoretically by using approach of local thermodynamic equilibrium within nanopore cross-sections. The problem is solved in quadratures in terms of irreversible thermodynamics. The phenomenological coefficients are further specified by using capillary space-charge model for straight slit-like and cylindrical capillaries. This analysis reveals several novel features of current-induced concentration polarization related to the (electro)osmotic volume transfer...
March 14, 2018: Small
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"