Results 91 to 100 of about 68,132 (365)

Late Palaeozoic lithostratigraphy of the Andean Precordillera revisited (San Juan Province, Argentina) [PDF]

open access: yes, 2014
New data on some neopalaeozoic lithostratigraphic units of the central sector of the Argentinean Precordillera are presented. The western Precordillera displays occasional outcrops of siliciclastic rocks of the Late Palaeozoic.
Busquets, P   +6 more
core   +2 more sources

Boundaries of photosynthesis: adaptations of carbon fixation in extreme environments

open access: yesFEBS Open Bio, Volume 15, Issue 7, Page 1028-1040, July 2025.
Photosynthesis faces challenges from environmental extremes of temperature, pH, and salinity, limiting gas diffusion, modifying membrane fluidity, and destabilizing photochemical and biochemical reactions. Photosynthetic organisms have evolved unique adaptations overcoming these stresses and maintaining their photosynthetic activity.
Pere Aguiló‐Nicolau   +3 more
wiley   +1 more source

Charles W. Peach, palaeobotany and Scotland [PDF]

open access: yes, 2008
The move south from Wick to the city of Edinburgh in 1865, some four years after retirement from the Customs service, provided Charles W. Peach with new opportunities for fossil-collecting and scientific networking.
Anderson, Lyall I, Taylor, Michael A
core  

A demonstration of an affinity between pyrite and organic matter in a hydrothermal setting [PDF]

open access: yes, 2011
One of the key-principles of the iron-sulphur world theory is to bring organic molecules close enough to interact with each other, using the surface of pyrite as a substrate in a hydrothermal setting. The present paper explores the relationship of pyrite
AC Tessis   +45 more
core   +3 more sources

An approach for coherent periodogram averaging of tilt‐series data for improved contrast transfer function estimation

open access: yesFEBS Open Bio, EarlyView.
The contrast transfer function (CTF) is an imaging aberration that is a major resolution‐limiting factor in cryo‐electron microscopy (cryo‐EM). Precise CTF estimation is key to overcoming this limitation, but is particularly challenging in cryo‐electron tomography (cryo‐ET) data. Here, we present an approach for using geometric information to assist in
Sagar Khavnekar, William Wan
wiley   +1 more source

The unique devonian sections of Dniepro-Donetsk cavity. Kolaidyntsy parametric well 413. Article 1

open access: yesМінеральні ресурси України, 2015
On results the boring drilling of mining hole 413 data of geophysical works were not confirmed about the depth of bedding of crystalline breeds of foundation and thickness of the Devonian sedimentations.
V. A. Ivanyshyn   +4 more
doaj  

A stem of an arborescent lycopsid Sigillaria with attached rooting organs Stigmaria from the Pennsylvanian of the Donets Basin, eastern Ukraine

open access: yesGeo&Bio
The macroscopic remains of Carboniferous plants in the Donets Basin are represented by a variety of preservation types, including compressions, impressions, casts, as well as permineralised wood of gymnosperms preserved in alluvial and marine sandstones,
Vitaly Dernov, Halyna Anfimova
doaj   +1 more source

On British Carboniferous Brachiopoda [PDF]

open access: yesThe Geologist
Four years have elapsed since I first commenced my researches among the Carboniferous Brachiopoda of Great Britain ; and I should certainly by this time have completed my task, had not the unfortunate delay in the publication of the last two or three volumes of the Palæontographical Society induced me to undertake other work which would not require to ...
openaire   +2 more sources

Preliminary investigation on temperature, chemistry and isotopes of mine water pumped in Bytom geological basin (USCB,Southern Poland) as a potential geothermal energy source [PDF]

open access: yes, 2016
Mine water from both operating and abandoned mines can be used for individual space heating projects, district heating/cooling systems or for preheating air for mine ventilation.
Boyce, Adrian J.   +3 more
core   +2 more sources

Development of 4T1 breast cancer mouse model system for preclinical carbonic anhydrase IX studies

open access: yesFEBS Open Bio, EarlyView.
Carbonic anhydrase IX (CAIX) is a well‐recognised therapeutic target and prognostic biomarker in cancer. We developed and characterised a robust murine breast cancer model system that is suitable for CAIX studies in vitro and in vivo—it comprises both CAIX‐positive and CAIX‐negative controls and provides a solid platform for the comprehensive ...
Zane Kalniņa   +13 more
wiley   +1 more source

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