聪明地工作

从前，英国有一个奇异的小村庄，村庄里除了雨水没有任何水源。为了解决这个问题，村里的长者决定对外签订一份送水合同，以便每天都能有人把水送到村子里。有两个人愿意接受这份工作，于是村里的长者把这份合同同时给了这两个人。

Breeding and Off-season Cultivation Techniques of a New Late-bolting Chinese Cabbage Variety Shiyuchunbao

Shiyuchunbao is a new hybrid of early-mid maturity spring Chinese cabbage with growth period of 60-65 d, flat-topped head and yellow inner leaves, characterized with high quality and good marketability. It is highly resistant to viral diseases, downy mildew and soft rot disease, and can be cultivated in Beijing, Hebai, Heilongjiang and Yunnan.

释虢季子白盘铭的“经■四方”

虢季子白盘铭文“经 四方”的“ ”字,旧或释为“ ”或“维”,本文根据古文字“擁”的不同写法把它改释为“擁”。古文字“经”、“擁”用法相近,经常连用。前者是治理的意思,引申有秉持、保有、经营、施行、度量、效法等义;后者的本义是抱,引申有秉持、保有、卫护、保护等义。虢季子白盘铭文“经摊四方”的意思是治理、卫护国土,与其前的“壮武于戎功”、其后的“搏伐猃狁于洛之阳”正互相照应。

Seasonal variations in the energy budget of Elliot's pheasant (Syrmaticus ellioti) in cage

This study aimed to discuss the energy budget of Elliot's pheasant Syrmaticus ellioti in different seasons, with life and health, good growth and normal digestion of Elliot's pheasant as the tested objects, The energy budget of Elliot's pheasant was measured by daily collection of the trial pheasants' excrement in the biological garden of Guangxi Normal University from March 2011 to February 2012. The results showed that the gross energy consumption, metabolic energy and excrement energy varied by season, increasing as temperature decreased. There was significant difference in gross energy consumption, metabolic energy, excrement energy between adults and nonages. There was also a trend that food digestibility of pheasants increases as temperature increases. In the same season, the food digestibility of adults was better than that of nonages. Throughout spring, summer, autumn and winter, the metabolic energy of 4-year adults were 305.77±13.40 kJ/d, 263.67±11.89 kJ/d, 357.23±25.49 kJ/d and 403.12±24.91 kJ/d, respectively, and the nonages were 284.86±17.22 kJ/d, 284. 66±15.16 kJ/d, 402. 26±31.46 kJ/d and 420. 30±31.98 kJ/d, respectively. The minimum metabolic energies were 247.65±21.81 g, 265.86±26.53 g, respectively for each group, detected between 4-year adults and 1-year nonages. Further study is needed to determine whether 29.6 C is the optimal temperature for the Elliot's pheasant.

The Effects of Rapid Temperature Changes on HK,PK and HSP70 of Litopenaeus vannamei in Different Seasons

Activities of hexokinase(HK),pyruvate kinase(PK) and levels of HSP70 were measured to evaluate the response of Litopenaeus vannamei to rapid temperature changes under controlled laboratory conditions.Shrimps were subjected to a quick temperature change from 27℃ to 17℃ for the summer case(Cold temperature treatment),or from 17℃ to 27℃ for the winter case(Warm temperature treatment).After 0.5,1,3,6,12,24,48,and 72 h of exposure time,shrimps were sampled and prepared for further analysis.The results showed that the effect of acute temperature changes on activities of HK was significant.Patterns of variations of the two glycolytic enzymes suggested that enzymes in the glycolysis cycle could adjust their activities to meet the acute temperature change.The HSP70 level increased in both cold and warm temperature treatments,suggesting that the rapid temperature changes activated the process of body's self-protection.But the difference in expression peak of HSP70 might be related to the different body size and the higher thermal sensitivity to temperature increase than to temperature decrease of L.vannamei.

Serum Levels of Interleukin-1 Beta, Interleukin-6 and Melatonin over Summer and Winter in Kidney Deficiency Syndrome in Bizheng Rats

Objective To observe the seasonal changes in serum levels of interleukin-1 beta(IL-1β), interleukin-6(IL-6) and melatonin(MT) in Bizheng rat model, and explore the relationship between MT and the pathogenesis of rheumatoid arthritis. Methods One hundred and sixty Sprague-Dawley rats were randomly divided into four groups in summer(n=80) and winter(n=80) respectively: normal group, collagen-induced arthritis(CIA) model group, operation group, and sham-operation group(n=20 in each group). The CIA model group was injected with collagen emulsion at the base of the tail to induce arthritis. The rats in the operation group received pineal gland resection, and 7 days after the first operation, underwent testectomy or oophorectomy. The rats in the sham-operation group were operated to ligature the sagittal sinus, without extracting the pineal gland. After the operations, the operation group and the sham-operation group both were immunized as the CIA group was. The serum levels of IL-1β, IL-6 and MT in different groups were measured by radioimmunoassay. Results Compared with the normal group, the serum levels of IL-1β and IL-6 increased in the CIA model, operation, and sham-operation groups both in summer and in winter(IL-1β in summer, P=0.008, P<0.01, P=0.012; IL-1β in winter, P=0.019, P<0.01, P=0.027; IL-6 in summer, P=0.028, P<0.01, P=0.024; IL-6 in winter, P=0.006, P<0.01, P=0.008). In the operation group, the serum levels of IL-1β and IL-6 in winter were higher than in summer, but with no statistically significant differences(P=0.844, 0.679). Compared with the normal group, the serum level of MT significantly increased in summer and winter in both the CIA model group(P=0.002, 0.008) and the sham-operation group(P=0.003, 0.007), while significantly decreased in the operation group(P=0.023, 0.003). There was no significant difference in MT level in the operation group between summer and winter(P=0.947). Conclusions The increase of serum levels of IL-1β and IL-6 may exacerbate the inflammatoryreaction and cause a more severe condition in the rheumatoid arthritis. The concentrations of IL-1β, IL-6, and MT correspond with the change of seasons, confirming that there are connections between nature and human body.

Significance of Immunoglobulin E in Umbilical Blood in Relation to an Allergic Family History, Seasonality, Child Immunity and the Impact of Applied Non-pathogenic E. coli on Children＇s Microbiome

We examined IgE levels in 4,312 samples of umbilical blood taken from children born into families with a positive history of allergy in one or both parents from 1998-2015. At the age often days, those with high IgE were given Colinfant Newborn （a lyophilized non-pathogenic strain of E. coli） for one month, three times weekly. At 15 months and three years we investigated the levels of IgE, IgA and IgG, and the incidence of illness and allergy. The results revealed that allergy and high umbilical IgE is strongly linked with family history （p 〈 0.001）. We also detected differences in seasonality, especially with regards to pollen allergies. About 80% of children treated with Colinfant had significantly reduced IgE and morbidity at 13-15 months and 3 years, and furthermore without any clinical signs of allergy. Surprisingly 20% of treated children did not have reduced IgE, and yet they did not have any clinical signs of allergy. Normalization of IgA and IgG was seen in 90% of treated subjects （p 〈 0.001）. These levels significantly are correlated with an almost negligible morbidity up to 4 years of life. Our study strongly suggests a positive effect of physiological E. coli on the microbiome of children as evidenced by a significantly reduced incidence of allergy and morbidity when applied early in life.

Clinical efficacy observation of'Tong Du Yun Pi'manipulation for infantile diarrhea in autumn

Objective:To observe the clinical efficacy of ‘Tong Du Yun Pi’(Governor Vessel-unblocking and spleen-promoting)manipulation in treating infantile diarrhea in autumn.Methods:Eighty-four kids were divided into a control group and an observation group using the random number table method,with 42 cases in each group.The control group was intervened by oral administration of montmorillonite powder;and the observation group was given additional‘Tong Du Yun Pi’pediatric massage(tuina)treatment.After treatment,the traditional Chinese medicine(TCM)symptoms scores,symptom improvement time,clinical efficacy and immune function indicators were compared between the two groups.Results:After treatment,the total effective rate was 95.2%in the observation group versus 76.2%in the control group,and the between-group difference was statistically significant(P<0.05);each item score in TCM symptoms was notably lower in the observation group than in the control group(all P<0.05);among the effective cases,the times to restore normal defecation,relieve abdominal bloating,arrest vomiting,and bring down the fever were markedly shorter in the observation group than in the control group,and the betwee regroup differences were statistically sign ificant(all P<0.05);the levels of immunoglobulin(Ig)G,IgM,CD4^(+)and CD4^(+)/CD8^(+)were significantly higher and CD8^(+)was significantly lower in the observation group than in the control group(all P<0.05).Conclusion:In the treatment of infantile diarrhea in autumn,based on oral administration of montmorillonite powder,‘Tong Du Yun Pi’manipulation can notably improve diarrheal symptoms,shorten disease duration,and strengthen the immunity of kids,producing more significant efficacy than oral administration of montmorillonite powder.