Results 31 to 40 of about 249,220 (266)

Measurement and ecological risk assessment of heavy metals accumulated in sediment and water collected from Gomishan international wetland, Iran

open access: yesWater Science and Technology, 2021
This study aimed to measure and ecologically assess heavy metals, including As, Cr, Pb, Cd, and Ni in water and sediment samples taken from Gomishan, an international wetland located in Golestan, Iran.
Nazanin Kalani   +3 more
doaj   +1 more source

Organically bound tritium in sediments from the Severn Estuary, UK [PDF]

open access: yes, 2006
Amersham plc, now GE Healthcare, has discharged both organically bound tritium (OBT) and tritiated water (HTO) into the Severn estuary since 1981. The OBT component of these discharges results in elevated tritium (3H) activities in the sediments and ...
Morris, Jennifer Ellen, Morris, J.E.
core  

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

open access: yesFEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil   +4 more
wiley   +1 more source

Velocity structure tomography analysis in southern Hebei Province

open access: yes地震科学进展
The destruction of cratons is one of the key research objects of geophysicists. According to China Earthquake Networks Center, small and medium-sized earthquakes have occurred more frequently in southern Hebei in recent years than before.
Shi Wang   +3 more
doaj   +1 more source

Optimization of Asymmetric Magnetic Recording Heads Inclination Angle and Study the Characteristics for a Higher Bit Density Recording of HDD

open access: yesScience Journal of University of Zakho, 2018
This paper study the optimization of the asymmetric magnetic recording heads, the calculations demonstrate sharp field gradient performance for both the horizontal, and vertical field components for this type magnetic recording heads at large inclination
Ammar I. Idrees
doaj   +1 more source

Physical and geochemical characterisation of canal sediments in the Black Country, West Midlands. [PDF]

open access: yes, 2011
A thesis submitted in fulfilment of the requirements of the University of Wolverhampton for the award of the degree of Doctor of Philosophy (Ph.D.)Potentially harmful elements (PHEs) have been researched in a wide variety of disciplines, including ...
Appasamy, Danen
core  

Septin 9 PB domains coordinate centrosome positioning and microtubule acetylation to control epithelial polarity

open access: yesFEBS Letters, EarlyView.
Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai   +4 more
wiley   +1 more source

Cadmium transport in sediments by tubificid bioturbation: An assessment of model complexity [PDF]

open access: yes, 2006
Biogeochemistry of metals in aquatic sediments is strongly influenced by bioturbation. To determine the effects of biological transport on cadmium distribution in freshwater sediments, a bioturbation model is explored that describes the conveyor-belt ...
Boudou, A.   +11 more
core   +1 more source

Modulation of Homer1 EVH1 domain internal dynamics by putative autism‐associated mutations

open access: yesFEBS Letters, EarlyView.
The putative autism‐associated M65I and S97L variants of the EVH1 domain of the postsynaptic scaffold protein Homer1 do not exhibit substantial changes in their overall structure or partner binding. Both of them, but especially the M65I variant, show altered internal dynamics relative to the wild‐type domain on the μs‐ms timescale, indicated by the ...
Fanni Farkas   +6 more
wiley   +1 more source

Determination of the source location of the 2023 Jishishan M6.2 earthquake in Gansu Province

open access: yes地震科学进展
Based on the P-phase arrival time, we determined the source location of the Jishishan M6.2 earthquake with simulated annealing (SA) method, and quantitatively evaluated the reliability of the results using sample set statistical analysis method.
Zhiyuan Zhao   +3 more
doaj   +1 more source

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