The contrasting relationships of relative humidity with influenza A and B in a humid subtropical region.

Influenza is an acute respiratory disease that seriously threatens public health. The occurrence of influenza has been proved to be related to a variety of meteorological factors. However, less attention has been paid to the effect of relative humidity (RH) on different types of influenza, especially in subtropical regions.

The association between diurnal temperature range and childhood bacillary dysentery.

Previous studies have found that mean, maximum, and minimum temperatures were associated with bacillary dysentery (BD). However, little is known about whether the within-day variation of temperature has any impact on bacillary dysentery. The current study aimed to identify the relationship between diurnal temperature range (DTR) and BD in Hefei, China.

[Effects of electromagnetic radiation on health and immune function of operators].

Objective: To investigate the effects of electromagnetic radiation on the physiological indices and immune function of operators.

Methods: The general conditions and electromagnetic radiation awareness rate of 205 operators under electromagnetic radiation were evaluated using a self-designed questionnaire. Physical examination, electrocardiography, and routine urine test were performed in these operators.

Growth response to ionic and osmotic stress of NaCl in salt-tolerant and salt-sensitive maize.

Salt-tolerant maize (STM) and salt-sensitive maize (SSM) were treated with 100 mM NaCl for 1, 3 and 6 d and the contents of Na+ and Cl(-) (cps) of different organelles of leaf cells determined by X-ray microanalysis. The results showed that Na+ and Cl(-) entered the cytoplasm, vacuole, chloroplast and apoplast simultaneously. When STM and SSM were treated in 100 mM NaCl at atmospheric pressure (-P) and with pressure equivalent to the osmotic pressure of the NaCl (+P), the dry weights of STM (+P) and SSM (+P) plants were greater than that of STM (-P) and SSM (-P) plants, showing that the inhibitory effect of salt on plant growth was at least partially due to the osmotic effect of the NaCl.

Association between transforming growth factor-beta1 T869C polymorphism and rheumatoid arthritis: a meta-analysis.

Objective: The results of studies on association between TGF-beta1 T869C polymorphism and susceptibility to RA are controversial. The absence of a replication of linkage might be due to different ethnicities. The aim of this study was to perform a preliminary investigation on the effect size of TGF-beta1 T869C polymorphism on RA susceptibility through a meta-analysis.

Self-concept and mental health status of 'stay-at-home' children in rural China.

Aim: To describe the self-concept and mental health status of 'stay-at-home' children and to explore the differences between stay-at-home children and non-stay-at-home children.

Methods: A cross-sectional survey was conducted in Changfeng County to collect information on self-concept and mental health status. Children were classified as 'stay-at-home' or 'non-stay-at-home' for data analysis.

[Study on the distribution and risk factors of injuries among home-stranded children in rural area of Anhui province].

Objective: To explore the distribution and risk factors of injuries among home-stranded children and living in rural area of Anhui province and to provide basic information for the development of injury intervention program.

Methods: 3617 students were recurited from Changfeng county of Anhui province with stratified sampling method and a survey was conducted using questionnaires. Unconditional univariate and multivariate logistic regression analysis were performed to evaluate the situation of unintentional injuries among 1614 home-stranded children during the past one year and on its influencing factors.

[Effects of salt stress on the contents of chlorophyll and organic solutes in Aeluropus littoralis var. sinensis Debeaux].

After seedlings of Aeluropus sinensis var. sinensis Debeaux were treated with different NaCl concentrations (0-200 mmol/L) for 14 days, some physiological indexes were measured. The higher the NaCl concentration, the more the growth of A.

[The morphological structure of salt gland and salt secretion in Aeluropus littoralis var. sinensis Debeaux].

The leaves of Aeluropus littoralis var. sinensis Debeaux were scanned with a scanning electron microscope, it showed that the upper-epidermis had almost the same number of salt glands as the lower-epidermis (Plate I-1, 2), and the salt gland is the typical bicelluar gland, which consists of a large basal cell inlaid into the epidermis and a small cap cell (Plate I-6). These salt glands were distributed mainly on the leaf veins, which favors the rapid collection of salts from the roots.

[Effects of salt stress on the growth and the nitrate reductase activity in Thellungiella halophila].

The results showed that when Thellungiella halophila was treated with NaCl, the fresh and dry weight, the water content, the succulency of whole plant and the root/shoot ratio were decreased (Figs. 2-4, 7); the organic matter content in roots was increased and the inorganic matter content in roots was decreased, while those in shoots changed in the opposite direction (Fig. 6); osmotic adjustment ability, the Na+ content, the root activity were increased (Figs.

[Osmotica accumulation and its role in osmotic adjustment in Thellungiella halophila under salt stress].

Thellungiella halophila was treated with different concentrations of NaCl (0, 50, 100, 200, 300 and 400 mmol/L). Water content, osmotic potential, various organic and inorganic osmotica contents in the leaves and roots were determined and the calculated osmotic potential (COP) of osmotica in the osmotic adjustment was calculated (Figs.1-10 and Table 1).

[Effects of salt stress on the growth and Na+ and K+ contents in Aeluropus littoralis var. sinensis Debeaux].

After seedlings of Aeluropus littoralis var. sinensis Debeaux were treated with different NaCl concentrations (0-200 mmol/L) for 17 days, some physiological indexs were measured. With an increase in NaCl concentration, the growth of A.

[Effect of NaCl stress on ion compartmentation, photosynthesis and growth of Salicornia bigelovii Torr].

Seedlings of Salicornia bigelovii Torr. were treated with different concentrations of NaCl (0, 100, 300, 600 mmol/L). Ion contents, Na(+) subcelluar localization, photosynthetic rate, ultrastructure of chloroplast and other parameters were measured.