Results 81 to 90 of about 2,320,333 (291)

Study on variation of simple reaction time during menstrual cycle among undergraduate medical students

open access: yesNational Journal of Physiology, Pharmacy and Pharmacology, 2020
Background: Females have a monthly cyclical change in the levels of estrogen and progesterone during the pre-menstrual and post-menstrual phase. These hormones affect the sensory-motor association.
Anusha Donadi   +2 more
doaj   +1 more source

Reaction time and intelligence:Comparing associations based on two response modes [PDF]

open access: yes, 2013
People who score highly on intelligence tests also tend to have faster and less variable reaction times. Effect size estimates for the reaction time-intelligence association are larger in samples that are more representative of the population.
Cattell   +24 more
core   +1 more source

Overview of molecular signatures of senescence and associated resources: pros and cons

open access: yesFEBS Open Bio, EarlyView.
Cells can enter a stress response state termed cellular senescence that is involved in various diseases and aging. Detecting these cells is challenging due to the lack of universal biomarkers. This review presents the current state of senescence identification, from biomarkers to molecular signatures, compares tools and approaches, and highlights ...
Orestis A. Ntintas   +6 more
wiley   +1 more source

Targeting TNBC: core–shell polycationic polyurea dendrimers with inherent anticancer activity

open access: yesFEBS Open Bio, EarlyView.
Core–shell polycationic PURE dendrimers were tested in TNBC‐derived tumor models. Both formulations selectively targeted TNBC and effectively reduced tumor volume. PUREG4‐OEI48 suppressed tumor growth without detectable toxicity, whereas PUREG4‐OCEI24, despite showing efficacy, induced hepatic toxicity.
Adriana Cruz   +9 more
wiley   +1 more source

Comparative study of simple auditory reaction time in blind and blindfolded sighted individuals

open access: yesNational Journal of Physiology, Pharmacy and Pharmacology, 2017
Background: The ability of blinds to adapt themselves to cope with environmental stimuli depends on the quickness of response which in turn depends on sensory perception and central processing.
Bhavana G Bhirud, Lalita M Chandan
doaj   +1 more source

Interfacial Reaction Kinetics

open access: yes, 1999
We study irreversible A-B reaction kinetics at a fixed interface separating two immiscible bulk phases, A and B. We consider general dynamical exponent $z$, where $x_t\sim t^{1/z}$ is the rms diffusion distance after time $t$.
O'Shaughnessy, Ben, Vavylonis, Dimitrios
core   +1 more source

Tumor‐stromal crosstalk and macrophage enrichment are associated with chemotherapy response in bladder cancer

open access: yesFEBS Open Bio, EarlyView.
Chemoresistance in bladder cancer: Macrophage recruitment associated with CXCL1, CXCL5 and CXCL8 expression is characteristic of Gemcitabine/Cisplatin (Gem/Cis) Non‐Responder tumors (right side) while Responder tumors did not show substantial tumor‐stromal crosstalk (left side). All biological icons are attributed to Bioicons: carcinoma, cancerous‐cell‐
Sophie Leypold   +11 more
wiley   +1 more source

Effect of loud music and active telephonic conversation on simple visual reaction time

open access: yesNational Journal of Physiology, Pharmacy and Pharmacology, 2018
Background: In India, there is at least one death for every 4 min due to road traffic accidents (RTA’s) (1.37, 423 deaths in a year), of which 77.5% are due to fault of drivers.
Pradeep Reddy Srikaram   +2 more
doaj   +1 more source

Reaction-Diffusion Processes as Physical Realizations of Hecke Algebras

open access: yes, 1993
We show that the master equation governing the dynamics of simple diffusion and certain chemical reaction processes in one dimension give time evolution operators (Hamiltonians) which are realizations of Hecke algebras.
Baxter   +21 more
core   +2 more sources

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

open access: yesFEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

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