Results 71 to 80 of about 8,260 (191)

DNA Sequence Evolution through Integral Value Transformations [PDF]

open access: yes, 2011
In deciphering the DNA structures, evolutions and functions, Cellular Automata (CA) do have a significant role. DNA can be thought of as a one-dimensional multi-state CA, more precisely four states of CA namely A, T, C, and G which can be taken as ...
Arunava Goswami   +5 more
core   +2 more sources

In vitro digestibility of Urochloa decumbens inoculated with fungi isolated from the gastrointestinal tract of sheep

open access: yesAnnals of Applied Biology, Volume 187, Issue 2, Page 280-289, September 2025.
The forage digestibility decreases in the dry season. Fungus isolates from the gastrointestinal tract of healthy sheep were evaluated. Aspergillus terreus isolate was identified by analysis of rDNA and encoding β‐tubulin gene and Trichoderma longibrachiatum was identified by analysis of rDNA and elongation factor 1‐α gene. The T.
Claudio Eduardo Silva Freitas   +10 more
wiley   +1 more source

Tracing Oxygen and Hydrogen Isotope Signals From Water Sources to Tree‐Ring Compounds

open access: yesPlant, Cell &Environment, Volume 48, Issue 8, Page 6235-6250, August 2025.
ABSTRACT Stable oxygen (δ18O) and hydrogen (δ2H) isotope compositions of tree‐ring compounds preserve information about environmental waters; however, our understanding of their isotopic relationships is hampered by the lack of long‐term data sets.
Haoyu Diao   +11 more
wiley   +1 more source

Stark ladders as tunable far-infrared emitters [PDF]

open access: yes, 1998
A superlattice of GaAs/Ga(1 – x)Al(x)As quantum wells forms a Stark ladder under the influence of a perpendicular electric field. A two level incoherent emitter system, formed by radiative intersubband transitions between adjacent wells, is investigated ...
K. Donovan   +3 more
core   +1 more source

Diversity of Gracilariaceae (Gracilariales, Rhodophyta) Across Distinct Ecosystems in Zhanjiang, China: A Foundation for Screening Potential Cultivable Species in Southern China

open access: yesEcology and Evolution, Volume 15, Issue 7, July 2025.
This study assessed the diversity and distribution of Gracilariaceae species across various coastal ecosystems in Zhanjiang, Guangdong Province, China, identifying species suitable for large‐scale cultivation in southern China's coastal waters. Eight species were identified, with Gracilariopsis heteroclada, Gracilaria fisheri, G.
Zhaojun Zeng   +10 more
wiley   +1 more source

Grass silage contaminated with Mycobacterium avium subspecies paratuberculosis (MAP): a possible source of paratuberculosis infection in ruminants?

open access: yesVeterinární Medicína, 2010
Mycobacterium avium subsp. paratuberculosis (MAP) is the causative agent of paratuberculosis (Johne's disease) in ruminants. Paratuberculosis can cause severe economic losses and is acknowledged as one of the most important diseases of ruminants today ...
J.L. Khol   +5 more
doaj   +1 more source

In Vitro Fermentation Characteristics of Seven Commonly Used Dairy Roughages With Relatively High and Low Nutritive Values

open access: yesGrass and Forage Science, Volume 80, Issue 3, July-September 2025.
ABSTRACT Roughage constitutes a fundamental component of dairy cow diets; it promotes rumen health and supports optimal animal productivity. This study applied an ANKOM gas production system to assess the in vitro fermentation characteristics of seven widely used dairy roughages (barley hay, corn silage, lucerne hay, oaten hay, ryegrass hay, timothy ...
Z. Li   +6 more
wiley   +1 more source

Cracking Risk and Overall Stability Analysis of Xulong High Arch Dam: A Case Study

open access: yesApplied Sciences, 2018
It is of great significance to study the cracking risk, the overall stability, and the reinforcement measures of arch dams for ensuring long-term safety. In this study, the cracking types and factors of arch dams are summarized.
Peng Lin   +3 more
doaj   +1 more source

Optimization of IL-1RA structure to achieve a smaller protein with a higher affinity to its receptor

open access: yesScientific Reports, 2022
Interleukine-1 family cytokines are key orchestrators of innate and adaptive immunity. In particular, up-regulation of IL-1R1 via its agonistic ligands consisting of IL-1β and IL-1α is implicated in a variety of human diseases, such as rheumatoid ...
Mahsa Nouri Barkestani   +4 more
doaj   +1 more source

Validation and standardization of IS900 and F57 real-time quantitative PCR assays for the specific detection and quantification ofMycobacterium aviumsubsp.paratuberculosis [PDF]

open access: yesCanadian Journal of Microbiology, 2011
Mycobacterium avium subsp. paratuberculosis (Map) is the causative agent of Johne’s disease and may contribute to the onset and development of Crohn’s disease in humans. Rapid detection of Map is fundamental because of its reported isolation from pasteurized milk and its potential for transmission through environmental sources.
SIDOTI, Francesca   +5 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy