نتایج جستجو برای: aphanizomenon flos

تعداد نتایج: 781  

Journal: :Occupational medicine 2010
Noreen Tehrani

BACKGROUND This study examines the impact that working with distressed employees, clients and members of the public has on four caring professions: occupational health advisors (OHAs), human resource advisors (HRs), counsellors (CLs) and family liaison officers (FLOs). AIMS To measure the levels of compassion fatigue in caring professions and to identify the mechanisms that lead to increased ...

Journal: :Molecular medicine reports 2015
Lin-Yan Li Fen-Fang Cao Zhi-Jian Su Qi-Hao Zhang Xiao-Yong Dai Xue Xiao Ya-Dong Huang Qing Zheng Hua Xu

Rhizoma Atractylodes macrocephala, Radix Isatidis, Coptis chinensis and Flos Genkwa are common herbal remedies used by pregnant woman in China. In this study, their potential embryotoxicity was assessed using the embryonic stem cell test (EST) and a prediction model. The potential embryotoxicity of the herbs was based on three endpoints: the concentrations of the compounds that inhibited the pr...

2009
Jianying SHEN Jing JIANG Peizhong ZHENG

The effects of monosulfuron on growth and photosynthetic pigments of the nitrogen-fixing cyanobacterium Anabaena flos-aquae grown exposed to 2000-, 3000-, and 4000-lux light intensity were studied. Exposed to three light intensities, the seven concentrations of monosulfuron tested can significantly inhibit algal growth in a dose-dependent manner. The cell numbers and growth rate were decreased ...

2016
Thomas Y. K. Chan

In the present review, the main objective was to report the incidence and causes of herbal medicines induced anticholinergic poisoning in Hong Kong during 1989-2012 and to emphasize the importance of pharmacovigilance, investigations and preventive measures. Relevant papers, official figures and unpublished data were obtained from Medline search, the Department of Health and the Drug and Poison...

Journal: :Applied and environmental microbiology 1996
D L Parker B R Schram J L Plude R E Moore

The properties of purified capsular polysaccharide from the cyanobacterium Microcystis flos-aquae C3-40 were examined by capillary viscometry. Capsule suspensions exhibited similar viscosities between pH 6 and 10 but were more viscous at pH <=4 than at pH 6 to 11. At pH 7, a biphasic effect of metal ion concentration on capsule viscosity was observed: (i) capsule viscosity increased with increa...

Journal: :Revista de biologia tropical 2013
Okechukwu Idumah Okogwu Alex O Ugwumba

Phytoplankton occurrence and dynamics in rivers are mainly shaped by hydrophysical conditions and nutrient availability. Phytoplankton main structuring factors have been poorly studied in West African rivers, and this study was undertaken to identify these conditions in two tropical rivers that vary in size and human impact. For this, environmental variables and phytoplankton monthly samples we...

Journal: :Brazilian journal of biology = Revista brasleira de biologia 2006
I A S Costa S M F O Azevedo P A C Senna R R Bernardo S M Costa N T Chellappa

We report the occurrence of cyanobacterial blooms and the presence of cyanotoxins in water samples from the Armando Ribeiro Gonçalves reservoir (06 degrees 08 S and 37 degrees 07 W), located in the state of Rio Grande do Norte, in the semiarid region of northeastern Brazil. The cyanobacterial species were identified and quantified during the rainy and dry seasons in the year 2000. Cyanotoxins s...

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