Results 141 to 150 of about 3,202,429 (316)

The need to study human milk as a biological system. [PDF]

open access: yesAm J Clin Nutr, 2021
Christian P   +5 more
europepmc   +1 more source

PARK(ing) time–How park deficiency affects the biological clock in a Drosophila model of Parkinson's disease

open access: yesFEBS Letters, EarlyView.
Drosophila park mutants serve as a model for Parkinson's disease. We used this strain to investigate the connection between oxidative stress and the circadian clock mechanism. We showed that increased oxidative stress affects the physiology of pacemaker cells, disrupting their daily structural plasticity. Lack of rhythmic signaling from pacemaker cells
Kamila Zientara   +3 more
wiley   +1 more source

The feasibility of developing multi-taxa indicators for landscape scale assessment of freshwater systems

open access: yes, 2011
The use of bird assemblages as wetland indicators is now well established in the UK.  An indicator based on a single taxonomic group can, however, have limitations.  Conversely, a multi-taxa approach can potentially provide a more robust ...
Michael Dobson; Freshwater Biological Association   +3 more
core  

Telemetry system of biological parameters [PDF]

open access: yes, 2005
The mobile telemetry system of biological parameters serves for reading and wireless data transfer of measured values of selected biological parameters to an outlying computer. It concerns basically long time monitoring of vital function of car pilot.The
Penhaker, M.   +3 more
core  

Passive Biomonitoring with Lichens as a Part of an Integrated Biological Measuring System for Monitoring Air Pollution in Switzerland

open access: yes, 1988
Passive Biomonitoring with the folious lichen Hypogymnia physodes (L.) Nyl. has been tested in Switzerland. Multielement analyses enable qualitative and quantitative conclusions about the composition and amount of important active pollutants.
Herzig, Rolf   +11 more
core   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

Behavioural simulation of biological neuron systems using VHDL and VHDL-AMS

open access: yes, 2007
The investigation of neuron structures is an incredibly difficult and complex task that yields relatively low rewards in terms of information from biological forms (either animals or tissue).
Brown, Andrew D.   +3 more
core  

Non-standard discretization of biological models [PDF]

open access: yes, 2015
We consider certain types of discretization schemes for differential equations with quadratic nonlinearities, which were introduced by Kahan, and considered in a broader setting by Mickens.
Towler, Kim, Hone, Andrew N.W.
core  

Conceptualizing, categorizing and recording the outcomes of biological control of invasive plant species, at a population level

open access: yes, 2019
Rates of establishment of agents, their population dynamics after release, and measures of the damage they inflict on their target hosts are all useful indicators of progress and success in weed biological control but cannot account for the overall ...
Moran, V Clifford   +2 more
core   +1 more source

Evidence for human milk as a biological system and recommendations for study design-a report from "Breastmilk Ecology: Genesis of Infant Nutrition (BEGIN)" Working Group 4. [PDF]

open access: yesAm J Clin Nutr, 2023
Donovan SM   +11 more
europepmc   +1 more source

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