Results 31 to 40 of about 406,292 (316)

Physiology of purple sulfur bacteria forming macroscopic aggregates in Great Sippewissett Salt Marsh, Massachusetts [PDF]

open access: yes, 1993
Purple bacterial aggregates found in tidal pools of Great Sippewissett Salt Marsh (Falmouth, Cape Cod, MA) were investigated in order to elucidate the ecological significance of cell aggregation. Purple sulfur bacteria were the dominant microorganisms in
Seitz, A. P.   +2 more
core   +1 more source

Recent progress in electrochemical decomposition of hydrogen sulfide for sulfur recovery and hydrogen production

open access: yesFrontiers in Chemistry
Hydrogen sulfide (H2S) generated by industrial processes (such as petroleum refining, natural gas purification, and coal processing) is a highly toxic and corrosive gas, which is detrimental to human health and environment. Electrocatalytic decomposition
Yanjun Chen   +16 more
doaj   +1 more source

An Alternative Approach for the Synthesis of Sulfoquinovosyldiacylglycerol

open access: yesMolecules, 2021
Sulfoquinovosyldiacylglycerol (SQDG) is a glycolipid ubiquitously found in photosynthetically active organisms. It has attracted much attention in recent years due to its biological activities.
Tobias Sitz   +3 more
doaj   +1 more source

The Effect of Sulfur Sources, Levels and Time of Addition on the Growth and Yield of Corn (Zeamays L.). [PDF]

open access: yesAl-Qadisiyah Journal For Agriculture Sciences, 2017
A field experiment is conducted in Suwara Researches Station in Wasit Governorate in spring season 2015 in clay loam in order to study the effect of sulfur sources R1 agricultural sulfur (90% sulfur) R2-foam sulfur (75% sulfur) at the levels of 0, 2500 ...
A. S. Jabir, K. H. Habeeb
doaj   +1 more source

Physiological and Mechanistic Studies of Phototrophic Fe(II) Oxidation in Purple Non-sulfur Bacteria [PDF]

open access: yes, 2007
Phototrophic Fe(II)-oxidizing bacteria use electrons from ferrous iron [Fe(II)] and energy from light to drive reductive CO₂ fixation. This metabolism is thought to be ancient in origin, and plays an important role in environmental iron cycling. It has
Jiao, Yongqin
core   +1 more source

Effect of Mo and Cr on S-Induced Intergranular Fracture in γ-Fe

open access: yesMetals, 2022
S is a common corrosion medium for austenitic stainless steels. The severe intergranular fracture of austenitic stainless steels occurs in sulfur environments.
Si Liu   +8 more
doaj   +1 more source

Modeling the signature of sulfur mass-independent fractionation produced in the Archean atmosphere

open access: yes, 2014
Minor sulfur isotope anomalies indicate the absence of O2 from the Archean atmosphere. A rich dataset showing large variations in magnitude and sign of Δ33S and Δ36S, preserved in both sulfates and sulfides, suggests that further constraints on Archean ...
Claire, Mark   +10 more
core   +1 more source

Molecular doping of orthorhombic carbon nitride for efficient and selective photocatalytic biomass conversion

open access: yesMaterials Today Sustainability
Advanced metal-free carbon nitride has critically needed towards a sustainable technique of photocatalytic conversion of biomass (PCB) into value-added chemicals.
Gelan Wang   +5 more
doaj   +1 more source

A case report of neonatal scabies

open access: yesIndian Journal of Paediatric Dermatology, 2017
Scabies is commonly seen worldwide, in its usual classic form when afflicting older children and adults. However, neonatal scabies is described as its own entity in the literature.
Anil Kumar Singhal   +3 more
doaj   +1 more source

A Novel Modification Method of Stainless-steel Electrode for Sulfur Preparation by Reduction of Sulfur Dioxide

open access: yesElectrochemistry, 2020
A novel modification method of stainless-steel electrode for reduction of sulfur dioxide to prepare sulfur was reported. Sulfur dioxide can spontaneously react with modified stainless-steel electrode at a rate of 12.77 mA/cm2 to produce sulfur under ...
Zhengyang ZHANG, Haibei WANG, Liugen SUN
doaj   +1 more source

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