Tổng hợp tài liệu, ebook Khoa Học Tự Nhiên tham khảo.
Abstract: A bioactive glass with composition 45SiO2 - 24,5Na2O - 24,5CaO - 6P2O5 (wt%) was synthesized by melting method at high temperature, in which a part of precursor materials is white sand used to provide SiO2 component. ‘‘In vitro’’ bioactivity of this glass was evaluated by soaking of glass-powder samples in a simulated body fluid (SBF) ...
10 trang | Chia sẻ: thucuc2301 | Ngày: 01/12/2020 | Lượt xem: 467 | Lượt tải: 0
Abstract: Metabolic syndrome (MetS) has become a serious public health threat worldwide due to its many adverse health effects. The aim of this study was to determine the prevalence of Mets in normal weight and obese children, and identify some risk factors of MetS. The study was conducted in 547 children (6-10 years old) (304 obese and 243 norm...
8 trang | Chia sẻ: thucuc2301 | Ngày: 01/12/2020 | Lượt xem: 550 | Lượt tải: 0
Abstract: Eurycoma longifolia Jac, a medicinal herb, is used to treat malaria, cancer, diabetes and sexual dysfunction in human. In 2012, we reported the method of hairy-root culture of Eurycoma longifolia aiming to create a stable source of raw materials for the pharmaceutical need. In this study, we further examined the biological activities o...
7 trang | Chia sẻ: thucuc2301 | Ngày: 01/12/2020 | Lượt xem: 551 | Lượt tải: 0
Abstract: Glutamate dehydrogenase (GDH, EC 1.4.1.2~4) are the enzymes which catalyze reversible deamination reaction of L-glutamate to 2-oxoglutarate or -ketoglutarate (-KG). We identified a total of ten GDH encoded genes in soybean genome. The full length sequence of predicted proteins had 637 or 411 amino acids, except GmGDH06. Analysis of p...
8 trang | Chia sẻ: thucuc2301 | Ngày: 01/12/2020 | Lượt xem: 565 | Lượt tải: 0
Abstract: Mahonia bealei (Fortune) Pynaert) is a value medicinal plant and has natural distribution in Bat Xat and Sa Pa distr., Lao Cai province; Quan Ba distr., Ha Giang province. This species is heavily exploited by local people and will be exhausted in the future. Study on biological and ecological characteristics has special importance in c...
7 trang | Chia sẻ: thucuc2301 | Ngày: 01/12/2020 | Lượt xem: 606 | Lượt tải: 0
Abstract: A/H5N1 virus belongs to the genus of influenza A, within the family Orthomyxoviridae. The genome contains 8 segments in order: PB2, PB1, PA, HA, NP, NA, M, NS. Among influenza virus subtypes, H5N1 possesses the highest pathogenicity and causes a high mortality in poultry. This virus subtype is able to infect human with severe respirato...
8 trang | Chia sẻ: thucuc2301 | Ngày: 01/12/2020 | Lượt xem: 494 | Lượt tải: 0
Abstract: This study was conducted in the coastline in Soc Trang to contribute useful information on reproductive pattern, morphological and histological characteristics of ovaries and testes and development of oocytes and spermatocytes per gonadal development stages of the goby Eleotris melanosoma, a commercial fish in the study area. Data anal...
8 trang | Chia sẻ: thucuc2301 | Ngày: 01/12/2020 | Lượt xem: 627 | Lượt tải: 0
Abstract: Three investigations into species composition in aquatic insects in Ngoc Linh forest area in Quang Nam province (March, September, 2015 and March, 2016). At 15 sampling sites in selected waterbodies, aquatic insects were sampled quantitatively by Surber net and qualitatively by hand net. The study has showed a total of 86 species, belo...
7 trang | Chia sẻ: thucuc2301 | Ngày: 01/12/2020 | Lượt xem: 513 | Lượt tải: 0
Abstract: Aquatic insects were investigated from 11 sampling sites in selected waterbodies of Dak Mi Protection Forest in Quang Nam in March, September, 2015 and March, 2016. As the results, a total of 92 species, belonging to 67 genera, 38 families, 8 orders of aquatic insects were recognized here. Among them, the order Ephemeroptera is the mos...
6 trang | Chia sẻ: thucuc2301 | Ngày: 01/12/2020 | Lượt xem: 537 | Lượt tải: 0
óm tắt: Kết quả điều tra, khảo sát thu thập vật mẫu vào các tháng 3 và tháng 9 năm 2015 tại 12 địa điểm nghiên cứu tại Khu bảo tồn thiên nhiên Sông Thanh, tỉnh Quảng Nam đã xác định được 166 loài động vật không xương sống ở nước thuộc hai nhóm động vật nổi và động vật đáy. Trong đó, động vật nổi có 12 loài thuộc 11 giống, 9 họ, 3 bộ, 2 lớp và độ...
10 trang | Chia sẻ: thucuc2301 | Ngày: 01/12/2020 | Lượt xem: 483 | Lượt tải: 0