Dalat University Journal of Science / Tạp chí khoa học Đại học Đà Lạt
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CHURU-KOHO POTTERY OF LAM DONG PROVINCE IN RELATION TO CHAM POTTERY
Get PDFThis article examines Churu-Koho pottery in relation to Cham pottery in Central Vietnam and the Central Highlands. Research shows that Churu-Koho pottery (Lam Dong Province) is related to Cham pottery in Bau Truc (Ninh Thuan Province) and Binh Duc (Binh Thuan Province) and to the pottery of the Sa Huynh culture (Quang Ngai Province), which dates back to 3,000 BP. They are similar in name, visual arts, type, and pottery firing method. These types of pottery have been common in Central Vietnam and the Central Highlands for a long time. However, they have moderately fallen in number, especially Churu-Koho pottery. Therefore, preserving and promoting this heritage in economic, cultural, social, and tourism development is critical. We use the research methods of ethnology and anthropology, including fieldwork, participant observation, interviews, and comparison, combined with the theories of historical particularism of Franz Boas, cultural ecology of Julian Steward, and cultural acculturation of American anthropologists to analyze and explain the similarities and differences among the types of pottery
SOME ARTISTIC SIMILARITIES BETWEEN THE XO DANG EPIC AND THE BAHNAR EPIC
Get PDFThe epics told by two ethnic groups, the Xo Dang and the Bahnar, belong to the Central Highlands epic region and have similarities in content and form. This article introduces some basic general features of the Xo Dang and Bahnar epics in terms of theme, plotline, and characterization, and analyzes the cause and meaning of the similarities. We use comparative, interdisciplinary research methods to clarify the similarities in the epic art of the two ethnic groups, thereby showing the unity in the diversity of the epic region of the Central Highlands.The epics told by two ethnic groups, the Xo Dang and the Bahnar, belong to the Central Highlands epic region and have similarities in content and form. This article introduces some basic general features of the Xo Dang and Bahnar epics in terms of theme, plotline, and characterization, and analyzes the cause and meaning of the similarities. We use comparative, interdisciplinary research methods to clarify the similarities in the epic art of the two ethnic groups, thereby showing the unity in the diversity of the epic region of the Central Highlands
BINARY HARD-SPHERE COLLOID-DROPLET MIXTURES WITH THE PYRITE-TYPE STRUCTURE
No full textWe investigate the assembly of a binary mixture of patchy colloids and droplets into crystal structures by use of the space-filling principle and Metropolis Monte Carlo simulations. Here, colloids with six patches in an octahedral symmetry attract droplets, whereas the colloid-colloid and droplet-droplet pairwise interactions are purely hard-core repulsions. Within parameter space regions that allow for stable binary crystals, we find the formation of different structure types, which are colloidal analogs of the NaCl phase and pyrite (FeS2) phase, as a function of the droplet-to-colloid sphere diameter ratio. This finding is consistent with theoretical predictions. Notably, while the NaCl structure type is a commonly known structure of hard-sphere colloids and nanoparticles, the formation of the FeS2 structure type from colloidal dispersion has not been explored. Our approach suggests a potential route to obtain colloidal crystals with more complex structures
ASSESSMENT OF THE POTENTIAL FOR DEVELOPMENT OF AGRITOURISM IN BINH DINH PROVINCE, VIETNAM
Get PDFThis study evaluates the potential for agritourism development in Binh Dinh Province, Central Vietnam. The analytical hierarchical process is used to determine the weights of four factors with 25 measurement criteria to assess agritourism potential. The research results show that Binh Dinh Province has great agritourism potential based on four evaluation factors, including (1) local agricultural tourism resources, (2) the trend for agritourism development and the agritourism market, (3) the local community’s willingness, and (4) the supporting activities of the local government. In particular, the local agricultural tourism resources factor received the highest score, followed by the local community’s willingness and the supporting activities of the local government. The trend for agritourism development and the agritourism market was rated the lowest. Therefore, Binh Dinh has viable opportunities to encourage the growth of agritourism to improve farmers’ livelihoodsDu lịch nông nghiệp đem lại nhiều cơ hội cho phát triển kinh tế cũng như đa dạng hóa các loại hình du lịch và cải thiện đời sống sinh kế của người dân. Nghiên cứu sử dụng phương pháp phân tích thứ bậc (AHP) để tính các trọng số của các tiêu chí đánh giá tiềm năng phát triển du lịch nông nghiệp tại các huyện, thị xã phía bắc tỉnh Bình Định. Tiếp theo, kết quả mô hình hóa sơ đồ mạng cho thấy cả 4 địa phương An Lão, Hoài Ân, Phù Mỹ, thị xã Hoài Nhơn đều được đánh giá ở mức điểm cao về tiềm năng phát triển du lịch nông nghiệp trên các khía cạnh tài nguyên du lịch, xu hướng phát triển du lịch, sự ủng hộ của người dân địa phương và sự quan tâm của chính quyền địa phương. Tuy nhiên, yếu tố xu hướng phát triển thị trường du lịch nông nghiệp được đánh giá ở mức điểm thấp hơn. Điều này cũng xuất phát từ việc phát triển du lịch nông nghiệp tại các huyện, thị xã phía Bắc tỉnh Bình Định cũng mới bắt đầu nhận được sự quan tâm trong vài năm gần đây, số lượt khách tham quan các huyện, thị xã phía Bắc tỉnh Bình Định còn ít so với tiềm năng du lịch của địa bàn
CAMELLIA SINENSIS VAR. MADOENSIS (SECT. THEA, THEACEAE), A NEW TAXON FROM VIETNAM
Get PDFCamellia sinensis var. madoensis is described and illustrated as a new variety of Camellia sinensis (section Thea, Theaceae) from Xuan Loc Commune, Song Cau District, Phu Yen Province. The new variety is easily distinguishable from C. sinensis var. sinensis by style free ½ to the base. The ITS sequence of this variety is also different from that of Camellia sinensis and its other varieties, while the matK gene sequences are nearly identical among Camellia taxa.Camellia sinensis var. madoensis được mô tả và minh họa với vai trò là một thứ mới của Camellia sinensis (section Thea, Theaceae) ghi nhận tại xã Xuân Lộc, huyện Sông Cầu, tỉnh Phú Yên. Thứ mới này có thể dễ dàng phân biệt với C. sinensis var. sinensis bởi vòi nhụy rời ½ tính từ đế. Trình tự ITS của thứ này cũng khác với Camellia sinensis và các thứ khác của nó
DARK SOIL PITS AND GRAVES IN VOLCANIC CAVE C6.1, KRONG NO, DAK NONG PROVINCE: DOCUMENTATION AND DISCUSSION
Get PDFDark soil pits and graves are critical documents discovered in volcanic cave C6.1. As a result of the investigation and excavation of cave C6.1 conducted in 2017, 2018, and 2019, we have discovered vestiges of nine dark soil pits and seven relatively intact graves, together with teeth and other human remains scattered in the cultural layer. This is an important source of information on the racial composition of the prehistoric inhabitants of the Central Highlands during the Neolithic period, as well as the paleoenvironment, environmental adaptations, and flora and fauna that prehistoric inhabitants exploited for their livelihoods. This article introduces documents and reconstructs the socioeconomic picture of the prehistoric inhabitants of cave C6.1. It also contributes scientific documents for the general conservation and promotion of heritage to develop sustainable cultural tourism in Dak Nong Province
CORPORATE SOCIAL RESPONSIBILITY AUTHENTICITY AND FIRM PERFORMANCE IN AN EMERGING MARKET
Get PDFThis study uses quantitative methods to investigate the importance of corporate social responsibility authenticity (CSRA) on the performance of small and medium-sized enterprises (SMEs). It investigates the interceding roles of organizational identification (OID) and corporate reputation (CRE) between CSRA and firm performance (FPE). The data, which were questionnaire responses from 548 customers, employees, and shareholders of SMEs, were analyzed using SmartPLS version 3.3.2. Significant positive correlations were found between the authenticity of corporate social responsibility (CSR) and three key factors: firm performance, organizational identification, and corporate reputation. This study contributes to existing knowledge by exploring the mediating roles of OID and CRE in the relationship between CSRA and FPE. To better understand how CSR affects OID, CRE, and eventually FPE, this study integrates the perceptions of internal and external stakeholders on the degree to which CSR is seen as authentic. This study particularly adds to the body of CSR literature in the context of increasing skepticism of stakeholders about CSR authenticity. Grounded in stakeholder behaviors, social identity, and social exchange theories, this study extends these theories by operationalizing a novel empirical framework in a new setting. Furthermore, the implications of this study extend to society’s current concerns about “greenwashing” or “corporate hypocrisy.
HOABINHIAN IN VIETNAM AND ECONOMIC ACTIVITIES FROM 20,000 TO 7,000 YEARS BP
Get PDFThis article studies the basic economic activities of Hoa Binh cultural inhabitants in the period of 20,000 to 7,000 years BP, including tool making, hunting, gathering, and primitive agriculture. The research results have identified a number of key economic characteristics of Hoa Binh cultural residents and evaluated the effectiveness of human methods of finding and gathering food under the fluctuations of the natural environment during the late Pleistocene to early Holocene in northern Vietnam. Little evidence directly related to cultivation and animal husbandry has been found at Hoa Binh cultural sites, so the issue of Hoa Binh agriculture is still a working hypothesis that needs to be studied further
CAMELLIA PYRIFORMIS (THEACEAE, SECTION CALPANDRIA), A NEW SPECIES FROM NORTHERN VIETNAM
Get PDFCamellia pyriformis is described, illustrated, and placed in section Calpandria. Morphological features of this new species are young branches villous; leaves above pubescent, a long midrib, below pubescent; petiole falcate, densely villous; flowers solitary or geminate; pedicel very short, pubescent; bracteoles sparsely pubescent on both sides; sepals, pubescent on both sides; petals, white, glabrous; androecium 5–6 stamens, filaments completely united to form a truncated cone, glabrous, basal adnate to the petal, shallowly dentate at the apex, each filament bearing an anther; gynoecium 3-locular, densely white silky strigose tomentose, styles glabrous; capsule pyriform, pubescent; seed broad pyriform, densely villou
ISOLATION AND STRUCTURAL CHARACTERIZATION OF TWO SAPONINS FROM THE ROOTS OF Sansevieria trifasciata ‘Laurentii’
Get PDFSansevieria is a genus consisting of about 60 species natively distributed in tropical and subtropical areas. Many Sansevieria species are used for ornamental purposes or in traditional medicine to treat human diseases. Sansevieria trifasciata ‘Laurentii,’ commonly known as snake plant, is an evergreen perennial plant used in traditional medicine. The phytochemical investigation of the roots of S. trifasciata ‘Laurentii’ resulted in the isolation and structural characterization of two previously reported saponins: (24S,25R)-1b-[(β-D-fucopyranosyl)oxy]-3b-hydroxyspirost-5-en-24-yl β-D-glucopyranoside (1) and 26-[(β-D-glucopyranosyl)oxy]-3β,22α-dihydroxyfurosta-5,25(27)-dien-1β-yl-O-α-L-rhamnopyranosyl-(1→2)-α-L-arabinopyranoside (2) by analysis of their 1D and 2D NMR spectra and HR-ESI-MS, together with the comparison to data published in the literature