Natural substance

Ebook "Shipping and the environment: Improving environmental performance in marine transportation" focuses on the interaction between shipping and the natural environment and how shipping can strive to become more sustainable. Readers are guided in marine environmental awareness, environmental regulations and abatement technologies to assist in decisions on strategy, policy and investments.

434p giangdongdinh 28-05-2024 2 0   Download

Terpenoid indole alkaloids (TIAs) vincristine and vinblastine are two essential anticancer drugs used in cancer treatments. These compounds are naturally available only in Catharanthus roseus in low accumulation, leading to efforts to upregulate TIAs substances through other expression organisms. The combination of vindoline and catharanthine into α-3∼,4∼- anhydrovinblastine (AVLB) is an important step for the biosynthesis of vinca alkaloids, which serves as a precursor to vinblastine and vincristine.

10p dianmotminh02 03-05-2024 4 2   Download

Part 1 book "Color atlas of forensic medicine and pathology" includes content: Sudden natural death in a forensic setting; therapeutic interventions, complications, and accidents; substance abuse and poisoning; postmortem change and time of death; pediatric forensic pathology.

268p zizaybay1101 30-04-2024 5 2   Download

Part 2 book "Manahan environmental chemistry" includes content: The geosphere and geochemistry; soil environmental chemistry; principles of industrial ecology; industrial ecology, resources, and energy; nature, sources, and environmental chemistry of hazardous wastes; industrial ecology for waste minimization, utilization, and treatment; environmental biochemistry; toxicological chemistry; toxicological chemistry of chemical substances; chemical analysis of water and wastewater,... and other contents.

434p muasambanhan10 06-04-2024 6 0   Download

Ebook "Dyes and pigments (SpringerBriefs in Molecular science)" describe the structural differences between dyes and pigments, their mechanisms of action, properties and applications. They set the scene by explaining the reasons behind these differences and show how dyes are predominately organic compounds that dissolve or react with substrates, whereas pigments are (predominantly) finely ground inorganic substances that are insoluble and therefore have a different mode of coloring.

88p tudohanhtau1006 29-03-2024 1 1   Download

Ebook "Progress in the chemistry of organic natural products (Volume 99)" contain contributions on various topics related to the origin, distribution, chemistry, synthesis, biochemistry, function or use of various classes of naturally occurring substances ranging from small molecules to biopolymers. Each contribution is written by a recognized authority in the field and provides a comprehensive and up-to-date review of the topic in question.

258p tudohanhtau1006 29-03-2024 6 1   Download

Part 3 book "Community/Public health nursing - Promoting the health of populations" includes content: Communicable disease, substance abuse; violence, natural and man made disasters, school health, occupational health, forensic and correctional nursing, faith community nursing, home health and hospice.

788p muasambanhan08 01-03-2024 1 1   Download

Ebook "Fortschritte der chemie organischer naturstoffe: Progress in the chemistry of organic natural products" contain contributions on various topics related to the origin, distribution, chemistry, synthesis, biochemistry, function or use of various classes of naturally occurring substances ranging from small molecules to biopolymers. Each contribution is written by a recognized authority in the field and provides a comprehensive and up-to-date review of the topic in question.

169p manmanthanhla0201 27-02-2024 3 1   Download

Ebook "NMR-bioassay guided isolation of the natural 20S proteasome inhibitors from photorhabdus luminescens: A novel NMR-tool for natural product detection" describes a novel methodology for natural product discovery. Due to its high degree of reproducibility, robustness and sensitivity, the technique can be utilized to detect even trace amounts of bioactive substances in heterogeneous matrices such as fermentation broths or crude organic extracts.

84p nhanphanguyet 28-01-2024 2 2   Download

Ebook "Fusarium head blight in Latin America" presents the current state of knowledge regarding mycological aspects that make wheat-Fusarium interaction, such as hyphal growth, morphogenesis in germinating spores, visualization of enzymatic hydrolysis, production of mycotoxins, inhibition of the hyphal growth by antagonist microorganisms, use of natural substances or by modification of the host resistance, as well as genetic analysis and expression of genes that regulate the infection.

311p lucchinguyen 28-12-2023 5 2   Download

Chitosan is a nitrogen containing polysaccharides that forms a semitransparent horny substance and is a principal constituent of the exoskeleton or outer covering of insects, crustaceans and arachnids. In recent years application of natural antimicrobials instead of conventional ones, due to their hazardous effects on health, has got serious attentions.

7p viisac 23-09-2023 1 1   Download

The Philippines is one of the top countries with high vulnerability to natural calamities aggravated by climate change, which is brought about by increased emissions of greenhouse gases (GHG) due to various factors including the rampant use of products containing ozone - depleting substances (ODS).

5p viindra 06-09-2023 5 2   Download

There is an increasing demand from consumers for natural and minimally processed foods. Therefore, developing and producing effective natural antimicrobial substances for food preservation is of great interest. This work aimed to investigate the effect of growth conditions on the maximum activity of antibacterial substances production by Lactiplantibacillus sp. NCL33 from Nem chua, a traditional fermented meat.

9p viwhitewolf 11-07-2023 10 4   Download

The medicinal plant Olax imbricata is well-known for its antioxidant, antiinflammatory, antibacterial, and diabetes-treating properties. It is essential to investigate the chemical composition and biological activity of Olax imbricata.

7p viwhitewolf 11-07-2023 3 2   Download

Substance use screening in adolescence is unstandardized and often documented in clinical notes, rather than in structured electronic health records (EHRs). The objective of this study was to integrate logic rules with state-of-the-art natural language processing (NLP) and machine learning technologies to detect substance use information from both structured and unstructured EHR data.

12p vighostrider 25-05-2023 7 3   Download

Prescription medication (PM) misuse and abuse is a major health problem globally, and a number of recent studies have focused on exploring social media as a resource for monitoring nonmedical PM use. Our objectives are to present a methodological review of social media–based PM abuse or misuse monitoring studies, and to propose a potential generalizable, data-centric processing pipeline for the curation of data from this resource.

15p vighostrider 25-05-2023 5 3   Download

Currently, nearly 36.5 million people live with Alzheimer’s disease worldwide, and acetylcholinesterase inhibition is considered the main treatment strategy against it. Seaweeds (or macroalgae) are a natural source of high-value bioactive compounds and have great potential in the production of health foods/foods, pharmaceuticals, cosmetics, animal feeds, biofertilizers, and biofuels.

13p vicaptainmarvel 21-04-2023 2 2   Download

Levodopa (biological precursor of dopamine) is sometimes used instead of dopamine for synthesis of highly adhesive polycatecholamine coatings on different materials. However, in comparison of polydopamine, little is known about biological safety of poly(levodopa) coatings and their efficacy in binding of therapeutically active substances.

15p viginny 30-12-2022 10 4   Download

ZnO's ability to decompose organic substances is receiving much attention in multiple applications. ZnO has a broad spectrum of light absorption natural or synthetic, for a wide range of wavelengths, and is an important material with excellent properties, environmentally friendly, nontoxic, inexpensive, and high redox potential features with simple manufacturing methods.

8p vispyker 16-11-2022 6 1   Download

Betulin, a natural pentacyclic triterpene with the lupane structure that is present in significant amounts in the outer bark of birch, is known for its broad array of biological and pharmacological properties. Betulin has attracted attention as a potential, natural-origin antimicrobial substance. The literature describes it as selectively toxic to neoplastic cells but safe for normal cells.

13p vidarwin 23-02-2022 11 1   Download