Results 41 to 50 of about 8,495,084 (302)

Thermal pump-compressor for space use Patent [PDF]

open access: yes, 1967
Thermal pump-compressor for converting solar ...
Booth, F. W., Clark, H. K.
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Long-Distance Movements of Feral Cats in Semi-Arid South Australia and Implications for Conservation Management

open access: yesAnimals, 2021
Movements that extend beyond the usual space use of an animal have been documented in a range of species and are particularly prevalent in arid areas.
Jeroen Jansen   +9 more
doaj   +1 more source

The topological AC effect on noncommutative phase space [PDF]

open access: yes, 2006
The Aharonov-Casher (AC) effect in non-commutative(NC) quantum mechanics is studied. Instead of using the star product method, we use a generalization of Bopp's shift method.
B. Mirza   +22 more
core   +3 more sources

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Discrete Cartesian Coordinate Transformations: Using Algebraic Extension Methods

open access: yesApplied Sciences
It is shown that it is reasonable to use Galois fields, including those obtained by algebraic extensions, to describe the position of a point in a discrete Cartesian coordinate system in many cases. This approach is applicable to any problem in which the
Aruzhan Kadyrzhan   +3 more
doaj   +1 more source

Aplicação dos sistemas de informação geográfica para definição de estratégias de manejo de bovinos nas pastagens Applying the geografic information systems to define cattle management of pastures

open access: yesRevista Brasileira de Zootecnia, 2007
O estudo de grandes áreas de pastejo, principalmente no que diz respeito ao seu uso pelos animais, é difícil, tanto na forma de amostragem, quanto na maneira de analisar os dados obtidos. Nesse contexto o Sistema de Informação Geográfica (SIG) surge como
Adriano Gomes Páscoa   +1 more
doaj   +1 more source

How Sanctuary Chimpanzees (Pan troglodytes) Use Space after Being Introduced to a Large Outdoor Habitat

open access: yesAnimals, 2023
Wild chimpanzees live in large, mixed-sex groups that display a fission–fusion social organization. To provide a social environment more like that of wild chimpanzees, Chimp Haven integrated smaller groups of 3–4 individuals into one large group of 18 ...
Amy Fultz   +4 more
doaj   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Harvest time and soil-plant relationship effects on phytochemical constituency and biological activities of psidium guajava L. leaves

open access: yesScientific Reports
Guava (Psidium guajava L.) leaves are deemed promising reservoir of phytoconstituents, with their characteristics potentially influenced by the timing of harvest and the dynamics of soil-plant interactions.
Amal M. El-Feky   +1 more
doaj   +1 more source

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