Biological characteristics

This study aimed to evaluate the compositional diversity of essential oilproducing species within the Asteraceae family at Muong La Nature Reserve, Son La province. A comprehensive identification revealed a total of 56 species distributed across 39 genera.

8p viaburame 14-03-2025 3 1   Download

Currently, cricket farming is becoming more and more popular since it brings high economic efficiency to farmers. Crickets can be raised in a small area, are easy to care for, have a short harvest time, and have no pollution problem. This paper provides insight into the effects of three types of food on the growth and development of crickets (Gryllus bimaculatus) and proposes the rearing process of crickets.

10p viaburame 14-03-2025 2 1   Download

This study focuses on the biological characteristics of the genetic resources of the Stephania brachyandra in Thai Nguyen, one of Vietnam's valuable medicinal plants currently at risk of extinction. Investigation results indicate that Stephania brachyandra is commonly found at an average density of 32.57 plants per square kilometer, with distribution density varying across districts, being highest in Vo Nhai district and lowest in Phu Luong district.

8p viinuzuka 28-02-2025 3 1   Download

The research herein builds on the work of Rojek (2003) and further investigates the bioremediation of NOM wastes. The aim of this research was to evaluate the effectiveness of selected white-rot fungi and yeast for the biodegradative removal of concentrated NOM from solution. The effectiveness of the white-rot fungus P. chrysosporium ATCC 34541 for the biological degradation of different batches of MIEXTM NOM concentrate and the effects of different characteristics of the NOM on the process and thus the resistance of the NOM to microbial removal were investigated.

131p runthenight05 01-03-2023 12 3   Download

The aim of this research was to investigate the formation of hydrogen sulphide for different sewage characteristics and flow rates. An experimental set-up was developed to simulate a section of a gravity sewer pipe, the set-up comprised of a pipe of 2 m long and 155 mm inside diameter, referred to in this thesis as a laboratory sewer pipe. The first stage of the experimental program involved developing a biological growth rich in sulphate-reducing bacteria inside the laboratory sewer pipe using synthetic sewage.

131p runthenight07 01-03-2023 14 3   Download

Summary of forestry PHD dissertation "Research Scientific Foundation to Conserve (Rhododendron moulmainense Hook. f.) in Lam Dong" dentify characteristics of biological, ecological and genetic characteristics of Rhododendron Moulmainense in Lam Dong; identify breeding techniques for Rhododendron Moulmainense for genetic conservation of the species in Lam Dong; propose supplementary solutions to conserve Rhododendron Moulmainense in Lam Dong.

27p bakerboys10 07-09-2022 16 3   Download

Evaluating the growing, developing and agronomic characteristics of several inbred maize lines in order to select successfully the researched maize family which is early mature and cold endurable, high yield and high combination possibility for maize variety breeding and selecting affairs with cold-endurability and high yield; evaluating the agro-biological characteristics, genetic diversity between lines, creating a hybrid combination with cold-endurability and high yield.

27p guitaracoustic09 14-01-2022 26 2   Download

Provide data on fishery resource exploitation status and their characteristics, and ecological – connectivity of important fishery resource, this is the basis for proposing fishery management solutions in the coastal of Quang Nam - Da Nang.

30p beloveinhouse01 15-08-2021 22 2   Download

Researching objectives: Describing some biological characteristics and distribution of Zingiber and Hedychium species from north-central Vietnam; determining the essential oil chemical composition; antimicrobial and antimosquito larvae activities of essential oils of some Zingiber and Hedychium species from north-central Vietnam.

27p beloveinhouse01 15-08-2021 33 5   Download

Immediate objective: Identification of the seaweed species composition and its distribution characteristics; evaluation of economic potential seaweed species to establish and manage its exploitation and conservation areas in Phu Yen province.

25p beloveinhouse01 15-08-2021 31 3   Download

Objective of the study:Research some reproductive biology characteristics and identify technical solutions for artificial breeding of saddleback clownfish Amphiprion polymnus (Linnaeus, 1758).

29p tunelove 11-06-2021 24 3   Download

Main activities of the study: Study on reproductive characteristics of tripletail in captive condition. Study on broodstock management and husbandry. Study on induce breeding. Study on nursing from larvae to fry and fingerling.

31p tunelove 11-06-2021 43 3   Download

Objectives of the study: Determination of technical parameters such as variety, nutrition, EC, pH, planting density and harvest time, which are suitable for growth, quality of spinach grown on recirculating hydroponic systems. From there, evaluation the effects of using artificial light (luminescence spectrum and light intensity) on the growth, yield and quality of spinach grown on recirculating hydroponic systems indoor.

26p thebadguys 08-06-2021 30 4   Download

The objectives of the thesis: Identify Salmonella isolated from pork, beef, and chicken meat at the retail markets in Hanoi. Determining antibiotic resistance characteristics of isolated Salmonella.

26p extraenglish 24-05-2021 34 3   Download

Aim of the research: The project is aimed to yield the composition and distribution of solitary wasps of the family Sphecidae in several provinces of the northwest part of Vietnam, new species to science and new species to Vietnam, and addition of some new biological, ecological, and behavioral characteristics of the mud dauber wasp S. madraspatanum. These results will be scientific base to next studies on the family Sphecida in the future.

26p extraenglish 24-05-2021 18 2   Download

Research purpose: Determine the composition, structure of mitochondrial genome, compare the difference in sequence, identify specific genetic characteristics of the six indigenous pig breeds, thereby contributing to the database to identification and conservation.

27p extraenglish 24-05-2021 26 4   Download

Objectives of study: To identify natural enemies for stored - product pests in Dong Thap province. To study biological and ecological characteristics of A. calandrae. To evaluate the ability to control S. zeamais and L. serricorne by A. calandrae in laboratory conditions.

28p extraenglish 24-05-2021 28 3   Download

Research objectives: Determination of the species composition of weevils on corn in warehouses in Son La; Effects of several ecological factors on growth characteristics of the maize weevil Sitophilus zeamais Motschulsky as the scientific basis for suitable measures in corn storage warehouses.

27p extraenglish 24-05-2021 19 4   Download

objectives: To describe the epidemiologically clinical and biological characteristics of steroid - dependent and steroid - resistant INS in children at the Hai Phong Children’s Hospital. To evaluate the efficacy of the combination of intravenous cyclophosphamide and prednisolone in treatment of steroid - dependent and steroid - resistant INS in children. To describe changes in several immune parameters before and after treatment in these patients.

29p extraenglish 24-05-2021 9 3   Download

Research objectives: To determine the nutritional, reproductive characteristics of wild blotched snakehead as a scientific basis for developing its breeding and nursery techniques; to establish a number of specifications in the production of blotched snakehead in artificial conditions.

26p capheviahe27 23-02-2021 11 2   Download