Results 91 to 100 of about 11,574,669 (365)

Gravitational Superenergy Tensor

open access: yes, 1996
We provide a physical basis for the local gravitational superenergy tensor. Furthermore, our gravitoelectromagnetic deduction of the Bel-Debever-Robinson superenergy tensor permits the identification of the gravitational stress-energy tensor.
Mashhoon, Bahram   +2 more
core   +1 more source

Trends in medical students’ stress, physical, and emotional health throughout training

open access: yesMedical Education Online, 2020
Background: Medical student wellness, including physical health, emotional health, and levels of perceived stress, appears to decline during training, with students reporting high levels of depression, anxiety, and burnout as early as the first year of ...
Isla McKerrow   +4 more
semanticscholar   +1 more source

Molecular characterisation of human penile carcinoma and generation of paired epithelial primary cell lines

open access: yesMolecular Oncology, EarlyView.
Generation of two normal and tumour (cancerous) paired human cell lines using an established tissue culture technique and their characterisation is described. Cell lines were characterised at cellular, protein, chromosome and gene expression levels and for HPV status.
Simon Broad   +12 more
wiley   +1 more source

Prevalence and Predictors of Burnout Among Medical Students in a Private Medical College: A Cross-Sectional Study

open access: yesNational Board of Examinations Journal of Medical Sciences
Background: Medical students are consistently subjected to psychosocial stresses during their training, which can result in burnout, a condition characterised by emotional, mental, and physical weariness due to severe and protracted stress.
Manjunath M E   +2 more
doaj   +1 more source

Static Spherically Symmetric Kerr-Schild Metrics and Implications for the Classical Double Copy [PDF]

open access: yes, 2015
We discuss the physical interpretation of stress-energy tensors that source static spherically symmetric Kerr-Schild metrics. We find that the sources of such metrics with no curvature singularities or horizons do not simultaneously satisfy the weak and ...
Ridgway, Alexander K., Wise, Mark B.
core   +2 more sources

Strength through diversity: how cancers thrive when clones cooperate

open access: yesMolecular Oncology, EarlyView.
Intratumor heterogeneity can offer direct benefits to the tumor through cooperation between different clones. In this review, Kuiken et al. discuss existing evidence for clonal cooperativity to identify overarching principles, and highlight how novel technological developments could address remaining open questions.
Marije C. Kuiken   +3 more
wiley   +1 more source

Relationship of functional dyspepsia with mental and physical stress

open access: yesAnnals of Psychophysiology, 2020
Background: Functional Dyspepsia is a globally prevalent illness, which although not life-threatening, displays a strong influence on the quality of life. Functional Dyspepsia is essentially chronic indigestion with no obvious physical cause.
Prem Shankar   +4 more
doaj   +1 more source

Understanding of the Retarded Oxidation Effects in Silicon Nanostructures [PDF]

open access: yes, 2012
In-depth understanding of the retarded oxidation phenomenon observed during the oxidation of silicon nanostructures is proposed. The wet thermal oxidation of various silicon nanostructures such as nanobeams, concave/convex nanorings and nanowires ...
Han, X. -L., Krzeminski, C., Larrieu, G.
core   +3 more sources

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