Results 61 to 70 of about 4,158 (201)

Delayed diagnosis of 3β‐HSD7 deficiency in adolescence: Two case reports and review of the literature

open access: yesJPGN Reports, EarlyView.
ABSTRACT Congenital bile acid synthesis defects (BASD), the most common of which is 3β‐hydroxy‐Δ5‐C27‐steroid dehydrogenase oxidoreductase (3β‐HSD7) deficiency, are a rare cause of fat‐soluble vitamin malabsorption. We describe a 14‐year‐old girl who presented at 14 months with a left distal femur fracture and failure to thrive.
Samantha Pendleton   +6 more
wiley   +1 more source

Sanitation felling against the European spruce bark beetle: A matter of intensity and forest type Tagli fitosanitari contro il bostrico tipografo: una questione di intensità e tipologia forestale

open access: yesAgricultural and Forest Entomology, EarlyView.
We assess the effect of sanitation felling performed in 2022 in North‐Eastern Italy on bark beetle damage that occurred in 2023 across eight spruce forest types, as evaluated using multispectral satellite imagery. Bark beetle damage was reduced only at very high or very low sanitation felling rates.
Aurora Bozzini   +5 more
wiley   +1 more source

Transposase interaction with the β sliding clamp: Effects on insertion sequence proliferation and transposition rate [PDF]

open access: yes, 2015
Insertion sequences (ISs) are ubiquitous and abundant mobile genetic elements in prokaryotic genomes. ISs often encode only one protein, the transposase, which catalyzes their transposition.
Amils, Ricardo   +6 more
core   +2 more sources

Energy Conservation in Acidophilic Bacteria [PDF]

open access: yesMicrobiological Reviews, 1984
[This corrects the article on p. 580 in vol. 47.][This corrects the article on p. 584 in vol. 47.][This corrects the article on p. 594 in vol. 47.].
openaire   +2 more sources

Branchial localization of acid (A‐type) and base (B‐type) excreting ionocytes in Amazonian stenohaline freshwater Potamotrygon ray

open access: yesJournal of Fish Biology, EarlyView.
Abstract The branchial epithelium of Potamotrygon—a member of the only strictly freshwater elasmobranch family Potamotrygonidae—was observed via immunohistochemistry, and two distinct forms of ionocytes were identified. The acid (A‐type) and base (B‐type) secreting cells with respective basolateral–apical localizations of Na+/K+‐ATPase–Na+/H+ exchanger
M. W. Rossi   +3 more
wiley   +1 more source

Origin of Life

open access: yes, 2012
The evolution of life has been a big enigma despite rapid advancements in the fields of biochemistry, astrobiology, and astrophysics in recent years.
A. Gibbons   +46 more
core   +1 more source

Bioleaching of copper- and zinc-bearing ore using consortia of indigenous iron-oxidizing bacteria [PDF]

open access: yes, 2018
Indigenous iron-oxidizing bacteria were isolated on modified selective 9KFe(2+) medium from Baiyin copper mine stope, China. Three distinct acidophilic bacteria were isolated and identified by analyzing the sequences of 16S rRNA gene.
Khan, Suliman   +5 more
core   +1 more source

Macroscopical and histological characterization of the perineal membrane and deep perineal pouch

open access: yesJournal of Anatomy, EarlyView.
The existence of the deep transverse perineal muscle remains controversial. While the macroscopic appearance of the tissue in the deep perineal pouch differs between men and women, the differences in the histological composition of this fibromuscular plate is still unclear.
Morten Kampelmann   +3 more
wiley   +1 more source

Microbial Extremophiles in Evolutionary Aspect [PDF]

open access: yes, 2007
The microflora of the cryosphere of planet Earth provides the best analogs for life forms that might be found in the permafrost or polar ice caps of Mars, near the surface of the cometary nuclei, or in the liquid water beneath the ice crusts of icy moons
Hoover, Richard B., Pikuta, Elena V.
core   +1 more source

Engineering microbial consortia to enhance biomining and bioremediation [PDF]

open access: yes, 2012
In natural environments microorganisms commonly exist as communities of multiple species that are capable of performing more varied and complicated tasks than clonal populations.
Karl D. Brune, Travis S. Bayer
core   +3 more sources

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