Hung Manh Nguyen

The Institute Of Ecology and Biological Resources · Department of Plant Ecology

Lonicera hildebrandiana, a precious genetic resource, belongs to the critically endangered in the Vietnam Red Data Book 2007. It is one of the significant herbal baths of the Red Dao ethnic minority group living in the Sa Pa district, Lao Cai province - where the region’s typical medicinal leaf bath tourism is developed, bringing high income and so...

The study of the flora located in the central part of the Hoàng Liên Sơn Range in the northern region of Indochina has revealed 279 species of liverwort and hornwort, 26 of which are newly reported for the flora of Vietnam. The uniqueness and peculiarity of the studied flora are explained by the significant altitudinal range in the area treated and...

Abies delavayi subsp. fansipanensis is classified as a highly endangered plant in the Vietnam Red Data Book (2007) and a critically endange red species in IUCN red list (2012). This species distributed at the altitudes of 2600-2680 m and 2750-2950 m above sea level (a.s.l) on Fa nsipan-mountain, Lao Cai province, Vietnam. However, to date there is...

BIOKEYS is software built in DELPHI development environment with PASCAL as the base programming language. BIOKEYS allows creating and working with biological databases, creating and working with polyclave and dichotomous keys. This study has added the feature of displaying character image in the identification dialog. The purpose of displaying char...

Panax stipuleanatus, a precious genetic resource, is classified as Critically Endangered (CR) in the Vietnam Red Data Book 2007 and in group IIa of Decree 32-CP. It is a species of high economic value that is being severely reduced in many individuals and mangrove plant communities and needs to be studied and preserved. A number of biological and e...

Panax vietnamensis var. vietnamensis Ha & Grushv is an endemic species with a narrow distribution. Because of having many benefits and high prices, there is an increase in faked Ngoc Linh ginseng. Most of the faked Ngoc Linh ginseng samples are other Panax species or subspecies distributed in Vietnam. Thus, it is very important to authenticate the...

Abies delavayi subsp. fansipanensis (Xiang Q.P.) Rurhforth) or Abies delavayi var. nukiangensis auct.nonis a native plant, distributes at altitudes about 2,400 m above sea level. This plant belongs to the Pinaceae family and is listed in endangered, precious and rare species banned from commercial exploitation. The Abies delavayi subsp. fansipanens...

Arisaema menglaense, (section Anomala), previously considered to be restricted to China, has been discovered in Tay Con Linh reserve, Ha Giang province, northern Vietnam. The newly found population enables amendments and additions to the published species description. A species key of the section Anomala, and information of ecology, habitat, and co...

The taxonomic diversity center of Schistochilopsis is in East Asia, where the genus also shows the highest genetic diversity and morphological plasticity. The integrative survey of Schistochilopsis in East Asia was the main goal of the present account. Plant materials were obtained from recent collections made by authors in various parts of amphi-P...

Stem diameter at breast height (D1.3m) and tree height (H) are commonly used measures of tree growth. Based on correlation analysis between biomass of stem, branches and leaves and stem diameter and height of tree we can identify allometric equation for predicting biomass and carbon sequestration of the vegetation. This study was carried out in the...

Editorial

Two major human-made problems in rice production systems in the north of Vietnam concern the low plant-available silicon content of soils and the low biodiversity. The results of the LEGATO project suggest a change to an environmentally friendly rice production system that will help to recover biodiversity. We propose here a framework for a demonst...

Background: Antibodies are critical responses to protect the host from dengue virus(DENV) infection. Antibodies target DENV by two pathologic mechanisms: virus neutralization and infection enhancement. In dengue patients, the absence of neutralizing activity in the presence of FcγR implies that infection-enhancing activity hampers the neutralizing...

Location of surge arrester placement in protection scheme significantly affects the power station performance against overvoltages due to lightning stroke propagation. Failure probability of the equipments in transformer station will be dependent heavily on the front-of- wave slope and peak value of incoming lightning strokes. In the paper simulati...

Location of surge arrester placement in protection scheme significantly affects the power station performance against overvoltages due to lightning stroke propagation. Failure probability of the equipments in transformer station will be dependent heavily on the front-of- wave slope and peak value of incoming lightning strokes. In the paper simulati...

Lightning current impulse circuit researches have used various schematics for diverse impulses, which makes several problems for lightning current impulse generator fabrication with a suitable cost. In addition, errors of several lightning current impulse math models have not met the standards. This work presents solutions to determination of param...