Results 111 to 120 of about 164,923 (351)

Origin and distribution of mineral species in limestone caves [PDF]

open access: yes, 1971
More than 80 mineral species are known to result from secondary chemical reactions in solutional limestone caverns. These minerals are transitional and end-products of carbonate wall rock interactions with ground water and organic residue.
Broughton, Paul L.
core   +1 more source

Leaching of rare earths from Abu Tartur (Egypt) phosphate rock with phosphoric acid [PDF]

open access: hybrid, 2022
O. E. Roshdy   +8 more
openalex   +1 more source

Tumor‐Intrinsic ARHGEF3 Enhances Antitumor Immunity by Promoting T‐Cell Infiltration and Limiting Myeloid Cell‐Mediated Immunosuppression

open access: yesAdvanced Science, EarlyView.
ARHGEF3 is broadly downregulated across human cancers and correlates with patient prognosis. Tumor‐intrinsic ARHGEF3 activates the RHOA–ROCK–PTEN cascade to inhibit AKT signaling, thereby promoting chemokine‐driven T‐cell infiltration and relieving lipid‐mediated myeloid immunosuppression.
Yue Li   +8 more
wiley   +1 more source

Solubilization of Different Phosphate Forms by Phosphate Solubilizing Bacteria Isolated from Aerobic Rice [PDF]

open access: yes, 2009
Phosphorus solubilizing bacteria (PSB) are known to be able to solubilize different forms of inorganic phosphates. An in vitro study was conducted to determine the solubilization of phosphorus from inorganic phosphates in three broths containing ...
Ismail, Mohd Razi   +3 more
core  

Phosphate availability from phosphate rock as related to nitrogen form and the nitrification inhibitor DMPP [PDF]

open access: bronze, 2006
Rahmatullah Rahmatullah   +3 more
openalex   +1 more source

Engineering an Optogenetic pH‐Modulator in Bacteria

open access: yesAdvanced Science, EarlyView.
ABSTRACT Cells in many naturally occurring organisms routinely cooperate to control their extracellular pH in a dynamic and reversible manner, but this capability has been underexplored in synthetic biology. Here, we sought to engineer a microbial system that switches between two states —high and low extracellular pH— with minimal human intervention ...
Jenevieve Kuang   +7 more
wiley   +1 more source

EFFECT OF VARYING LEVELS OF ROCK PHOSPHATE ON THE GROWTH AND YIELD OF STYLO (Stylosanthes guyanensis Aubl.) UNDER ACIDIC SOILS

open access: yesAnnals of Tropical Research, 1988
Height of stylo plants at first and second cuttings significantly increased upon application of 300 kg/ha rock phoshate (103.71 kg P2O5). Fresh herbage yield also increased when 100 to 400 kg/ha of rock phosphate was applied.
Antonio I. Padaoil Jr.   +1 more
doaj  

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