ULTIMO AGGIORNAMENTO BANCA DATI: 13/09/2024 13:00:57
Gastropods comprise nearly 60,000 species of aquatic as well as terrestrial mollusks, primarily snails and slugs. The giant African land snail (Achatina fulica) is one of the most popular pet snails worldwide. This gastropod mollusk is known as the intermediate host of several parasites that cause severe ...
Background There is scarcity of information about the quality and safety of drinking water in Africa. Without such vital information, sustainable development goal number 6 which promotes availability and sustainable management of water and sanitation remains elusive especially in developing countries. ...
In order to achieve the objectives of resource conservation, it is important to recognize that habitats are connected by material and energy flows, and that humans often play a central role, directly or indirectly. Hence, ecological research should be designed that treats all interlinked habitats, including ...
The first recorded regular echinoid species from Sri Lanka, “Salmacis virgulatus” (now known as S. virgulata L. Agassiz in L. Agassiz & Desor, 1846), was listed by Agassiz & Desor (1846). Knowledge of Sri Lankan regular echinoids continued to advance until the end of the 19th century. However, there ...
So far, studies on the bacterial immune system CRISPR-Cas and its ecological and evolutionary effects have been largely limited to laboratory conditions. While providing crucial information on the constituents of CRISPR-Cas, such studies may overlook fundamental components that affect bacterial immunity ...
Introduction Global efforts to end HIV by 2030 focus on reducing and eventually eliminating new infections in priority populations. Identifying these populations and characterizing their vulnerability factors helps in guiding investment of scarce HIV prevention resources to achieve maximum impact. ...
Saline environments, such as marine and hypersaline habitats, are widely distributed around the world. They include sea waters, saline lakes, solar salterns, or hypersaline soils. The bacteria that live in these habitats produce and develop unique bioactive molecules and physiological pathways to cope ...
Background The most critical step in the pearl formation during aquaculture is issued to the proliferation and differentiation of outer epithelial cells of mantle graft into pearl sac. This pearl sac secretes various matrix proteins to produce pearls by a complex physiological process which has not ...
The ability to identify odors in the environment is crucial for survival and reproduction. However, whether olfactory processing in higher-order brain centers is influenced by an animal’s physiological condition is unknown. We used in vivo neuron and local field potential (LFP) recordings from the ventral ...
Osteoglossiformes represents one of the most ancestral teleost lineages, currently widespread over almost all continents, except for Antarctica. However, data involving advanced molecular cytogenetics or comparative genomics are yet largely limited for this fish group. Therefore, the present investigations ...
Mycobacterium chelonae is a member of the Mycobacterium chelonae-abscessus complex and a cause of opportunistic disease in fish, reptiles, birds, and mammals including humans. Isolates in the complex are often difficult to identify and have differing antimicrobial susceptibilities. Thirty-one previously ...
Natural resource rules exist to control resources and the people that interact with them. These rules often fail because people do not comply with them. Decisions to comply with natural resource rules often are based on attitudes about legitimacy of rules and the perceived risks of breaking rules. Trust ...
ABSTRACT Hydrogen embrittlement occurs when a material’s mechanical strength is weakened by the penetration of atomic hydrogen inside the material, the hydrogen sources are diverse and they all intervene in this phenomenon. Plating processes and cathodic protection induce the production of hydrogen ...
ABSTRACT Thermally sprayed aluminum (TSA) has been used in offshore oil and gas infrastructure for decades. Their effectiveness in mitigating corrosion of steel structures in presence of seawater has been proven over the years. However, very little work is reported on the performance of TSA in other ...
ABSTRACT Corrosion Under Insulation (CUI) is a major challenge for different process industries. Today it is managed in many ways, ranging from full removal of insulation to minimal maintenance, including some inspection methods with insufficient non-destructive testing. These extremes exhibit a lack ...
ABSTRACT This study discusses a new coating method to protect type 316L stainless steel (SS) from pitting corrosion in high chloride environments. The SS surface was coated using a simple, eco-friendly method, and sunflower oil (SunFO) was used as a base coating and binder for MoS2. The coated surface ...
ABSTRACT The use of dry coating on Premium OCTG connections to replace both storage and running compounds presents numerous benefits for end-users. As well as improving running performances, it keeps the well clean by preventing the discharge of dope to the environment and into the well bore and it ...
ABSTRACT DNVGL-RP-B401 “Cathodic Protection Design” is widely used as a design code for cathodic protection (CP) of permanently installed offshore structures associated with production of oil and gas.1 CP design parameters in RP B401 are consistently selected using a conservative approach. Adherence ...
ABSTRACT Styrenic materials, utilized in subsea wet insulation, have been exposed in long-term tests for 12 months at elevated temperatures and pressures in seawater according to ISO 12736:2014. The performance of these materials under this harsh exposure regiment shall be presented and compared to ...
ABSTRACT In natural seawater, many parameters might influence the cathodic protection current demand such as potential, temperature, dissolved oxygen content, biofilm and fouling activity, and calcareous deposit formation. The actual deepsea environment cannot be easily reproduced at laboratory scale. In ...