Carbon and nitrogen are the two elements that most affect plant organogenesis. In vitro, usually as part of the macronutrients. Some anecdotal evidence from the literature suggests that the ammonium (NH4+) to nitrate (NO3–) ratio may affect orchid organogenesis. In this study, to test this hypothesis, different NH4+: NO3– ratios were tested on the development of protocorm-like bodies (PLBs) of ...

What are the prospects for long-run economic growth? One prominent line of thinking is trend toward stagnation. Stagnationism has a long history in economics, beginning prominently with Malthus and occasionally surfacing different guises. Prominent themes here following: Will growth slow perhaps even reverse under weight resource depletion? overpopulation diminishing returns lower living standa...

High levels of insulin-like growth factor (IGF)-I may increase the risk of common cancers in humans. We hypothesized that weight loss induced by diet and/or exercise would reduce IGF-I in postmenopausal women. Four hundred and thirty nine overweight or obese [body mass index (BMI) ≥ 25 kg/m(2)] women (50-75 years) were randomly assigned to: (i) exercise (N = 117), (ii) dietary weight loss (N = ...

The effect of five isonitrogenous diets (36.6% protein), formulated by replacing 0, 25, 50, 75, and 100% of fish meal (FM) with rice protein concentrate (RPC), was investigated on the growth and tail-muscle fatty acid (FA) quality of juvenile Pacific white shrimp, Litopenaeus vannamei. The feeds were fed to shrimp (initial weight of 6.99 ± 0.08 g) five times daily to apparent satiation for 60 d...

BACKGROUND Obesity has become a serious problem for Chinese Han nationality. This research aimed to evaluate the prevalence of and trends in obesity among Chinese Korean nationality children and adolescents (1991-2010). METHODS We used data from Chinese National Surveys on Students' Constitution and Health (CNSSCH). CNSSCH was utilized to monitor Chinese students' health condition and release...

The women's own intrauterine environment may influence their own pregnancy and their babies. The aim of our study was to investigate how a woman's birth weight affects the course of her pregnancy later in life as well as the body size of her babies; this study was based on the developmental origins of health and disease (DOHaD) concept. We collected Maternal and Child Health handbooks from 414 ...

Background: This study aimed to investigate the effect of development-based care programs by mother on low birth weight (LBW) infants after being discharged from hospital. The present research was based on the assumption that there is a difference between intervention and control groups regarding the mean neonatal growth indices on the 15th and 29th</su...

Nanoparticles of titanium increase cell growth by improvement of photosynthetic and nitrogen metabolism and therefore, caused an increasing in weight of the plant. This re-search was conducted to evaluate seed yield and biochemical traits of bread wheat affected by different levels of titanium dioxide Nanoparticles in Ahvaz region, Khuzestan province, located at southwestern Iran by factorial e...