Influence of Magnetic Field on Germination and Early Growth Characteristics in Leymus-chinensis seeds

2011 ◽  
Author(s):  
Yang Gao ◽  
Decheng Wang ◽  
Jie Yang ◽  
Guanghui Wang
2013 ◽  
Vol 70 (8) ◽  
pp. 1131-1140 ◽  
Author(s):  
Allen H. Andrews ◽  
Beverly K. Barnett ◽  
Robert J. Allman ◽  
Ryan P. Moyer ◽  
Hannah D. Trowbridge

Growth characteristics are poorly understood for speckled hind (Epinephelus drummondhayi), a tropical deep-water grouper of economic importance that is considered overfished. Age has been validated for early growth, but the validity of adult age estimates is unknown. A few studies of growth zones in otoliths have revealed maximum age estimates of 15–35 years, which have been uncritically assumed as longevity. To answer questions about adult age, bomb radiocarbon dating was used to provide validated age estimates. A novel aspect of this study was use of the postbomb radiocarbon decline period (ca. 1980–2004) to age younger fish, an approach that was validated with known-age otoliths. Bomb radiocarbon dating provided valid length-at-age estimates ranging from ∼5 years to more than 45 years. Age was unexpectedly greater than previous estimates for more than half the fish used in this study, and longevity may approach 60–80 years. This study extends the utility of bomb radiocarbon dating by more than 20 years and adds to the growing perspective that deep-water tropical fishes can be long-lived.


2016 ◽  
Vol 137 (4) ◽  
pp. 1026-1035 ◽  
Author(s):  
Herman T. den Dekker ◽  
Agnes M.M. Sonnenschein-van der Voort ◽  
Johan C. de Jongste ◽  
Isabella Anessi-Maesano ◽  
S. Hasan Arshad ◽  
...  

2016 ◽  
Vol 38 (2) ◽  
pp. 151-157 ◽  
Author(s):  
Ananta Vashisth ◽  
Devendra Kumar Joshi

2010 ◽  
Vol 2010 ◽  
pp. 1-6 ◽  
Author(s):  
Jörgen Thorn ◽  
Maria Waller ◽  
Maria Johansson ◽  
Staffan Mårild

Objectives. To assess early growth characteristics and socioeconomic factors of children in relation to body mass index (BMI) and presence of overweight among four-year-old children.Methods. Two Child Health Centres (CHC) participated in the study. They were selected to obtain two populations of children featuring divergent socio-economic characteristics. Growth data registered at the CHCs from birth to the 4-year check-up were recovered. Overweight was defined by the BMI cut-offs established by IOTF. BMI values expressed as BMI standard deviation score (BMISDS) were used for analysis.Results. At the 4-year check-up, the BMISDS and the proportion of children with overweight (including the obese) were significantly higher in the district with lower socio-economic status. High BMI at birth and low socio-economic status of the population in the CHC-district were shown to be independent determinants for overweight and BMISDS at four years of age.Conclusions. More research is needed to understand the mechanisms and how intervention programs should be designed in order to prevent the development of overweight and obesity in children.


2018 ◽  
Vol 78 (2) ◽  
pp. 183-197 ◽  
Author(s):  
Sajid Hussain ◽  
Xiaochuang Cao ◽  
Chu Zhong ◽  
Lianfeng Zhu ◽  
Maqsood Ahmad Khaskheli ◽  
...  

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