Samples of the cross section microstructures of galvannealed steel sheets that lack alloying were analyzed. X-ray diffraction (XRD) tests were carried out. The study discovers that the deficit of alloying was higher...Samples of the cross section microstructures of galvannealed steel sheets that lack alloying were analyzed. X-ray diffraction (XRD) tests were carried out. The study discovers that the deficit of alloying was higher on both sides of the steel sheet when compared to the center and the thickness of the coating on the sides was also higher than the center. The results of the XRD tests demonstrate that the microstructure of the coating with a lack of alloy is mainly composed of zinc,ζ and δ. They also indicate that the lack of alloying is mainly due to a lower galvannealing temperature and thicker coating. It is shown by the optical micrographs of coating that the δ phase forms first in a discontinuous manner at the interface and then rapidly pushes towards the coating and enlarges.展开更多
Objectives Phenotypic switching of smooth muscle cells(SMCs) plays a critical role in the pathogenesis of atherosclerotic lesions such as coronary artery disease (CAD).Accumulating evidence demonstrates(hat a cellular...Objectives Phenotypic switching of smooth muscle cells(SMCs) plays a critical role in the pathogenesis of atherosclerotic lesions such as coronary artery disease (CAD).Accumulating evidence demonstrates(hat a cellular repressor of E1A-stimulated genes(CREG) plays a role in the maintenance of the mature phenotype of vascular SMCs. The purpose of the present study was to assess the possible association between CREG and CAD in the Han population of North China.Methods The promoter region of CREG by direct sequencing was conducted in 48 subjects.Then SNP rs2995073 and another 4 tagSNPs(rs4657669,rs3767443, rsl6859185,rs3753921) were selected for the association study.All five selected SNPs were determined in 1161 patients with angiographically proven CAD and 960 controls with normal coronary angiograms to investigate the possible involvement of CREG in CAD.Results Genotype frequencies of the five examined polymorphisms were similarly distributed between CAD group and controls(P】0.05).Further haplotype analysis also found no significant differences in the distributions between CAD group and controls(P】0.05). Conclusions This study did not show an association between common variants of CREG and CAD in the northern Chinese Han population.展开更多
Coronary artery spasm (CAS) is one of the leading pathological causes of a wide spectrum of ischemic heart diseases, ranging from variant angina pectoris to acute myocardial infarction and even sudden cardiac death[...Coronary artery spasm (CAS) is one of the leading pathological causes of a wide spectrum of ischemic heart diseases, ranging from variant angina pectoris to acute myocardial infarction and even sudden cardiac death[1]. Furthermore, Pierron et al. concluded that CAS of angiographically normal or sub-normal arteries is responsible for death or myocardial infarction in 11.6% of all cases. Oddly, the incidence of CAS is remarkably higher in Asians than in Caucasians[3], suggesting genetic involvement In its pathogenesis.展开更多
Objective To study the effects of different concentrations of Quercetin on nitric oxide (NO) production and membrane fluidity of the injured human umbilical vein vascular endothelial cell line(ECV 304) with hypoxia...Objective To study the effects of different concentrations of Quercetin on nitric oxide (NO) production and membrane fluidity of the injured human umbilical vein vascular endothelial cell line(ECV 304) with hypoxia and the lack of glucose. Methods The experiments were performed in the culture of ECV 304 injured with hypoxia and the lack of glucose in vitro. The releases of intracellular lactate dehydrogenase(LDH) of ECV 304 was measured with automatic biochemistry analysis. NO level of ECV 304 was monitored with colorimetry. The membrane fluidity of ECV 304 was measured with the fluorescence polarization method. Results After ECV 304 was cultured in hypoxia and the the lack of glucose for 24 hours, the release of LDH and the membrane fluidity were increased significantly; NO level was decreased. Preincubation of ECV 304 with 20, 80,160 μ mol·L -1 of Quercetin for 24 hours reduced LDH activity, membrane fluidity and increased the level of NO in hypoxia and the lack of glucose induced ECV 304. Conclusion These results demonstrate that Quercetin can produce the protective effect on hypoxia and the lack of glucose induced injury of ECV 304 by increasing release of NO and changing membrane fluidity.展开更多
Endoscopic submucosal dissection(ESD)and related procedures are minimally invasive and cost-effective alternates to surgery.However,there is no approved or listed current procedural terminology(CPT)for ESD.We aimed to...Endoscopic submucosal dissection(ESD)and related procedures are minimally invasive and cost-effective alternates to surgery.However,there is no approved or listed current procedural terminology(CPT)for ESD.We aimed to review the current reimbursement process hurdles for ESD procedures in private practice model in United States.We reviewed the data of two advanced endoscopists(one in New York and other in Pennsylvania State)performing ESD in their private practice set-ups.We found the reimbursement process was complex,with number of refusals varied from 0-9 for ESD procedures.It was not paid at all in 8.3%of cases by the medical insurance.Endoscopic mucosal resection,which is considered inferior as compared to ESD,but has a listed CPT,was denied in only 0.83%cases.Our data highlights the billing hurdles by the endoscopists to adopt ESD-related procedures in private practice model.展开更多
Jilin Province, the new generation of migrant workers is an important force in the modernization construction of our province, the new generation of migrant workers into the city is the urbanization of new generation ...Jilin Province, the new generation of migrant workers is an important force in the modernization construction of our province, the new generation of migrant workers into the city is the urbanization of new generation migrant workers directly affects the industrialization in the province, city and modernization level, the new generation of migrant workers into the city has an important role in the urban and rural development. The citizenization of migrant workers is a necessary measure to conform to the trend of historical development, and the government has also been committed to the promotion of the citizenization of migrant workers. The problem of the citizenization of the new generation of migrant workers in our province is based on giving full consideration to the actual situation of migrant workers in our province and drawing on the problems of migrant workers' integration into cities in other areas. The citizenization of migrant workers is an important way to improve the urbanization of our province, has a direct impact on the modernization process of our province. To promote and realize the integration of the new generation of migrant workers into the city is an inevitable requirement for China' s national conditions and the development of the times.展开更多
Our country's higher education has been growing, which will bring a large number of young people to join the ranks of higher education. At present, the proportion of young university teachers accounted for more than ...Our country's higher education has been growing, which will bring a large number of young people to join the ranks of higher education. At present, the proportion of young university teachers accounted for more than 45% of the total number of university teachers. This paper puts forward the corresponding countermeasures, based on the analysis of young teachers' issues of professional ethics missing,to further strengthen the professional ethics of young teachers, regulate their professional conduct, prompting the establishment of higher education dedicated the noble faith, and make due contributions to the cause of higher education.展开更多
An Interview towards Mr. Chu Xiangyin, Vice Chairman of Beijing Subcouncil, CCPIT Reporter: Would you please tell us development of exhibition industry in Beijing? Chu Xiangyin: Beijing Statistical Bureau and us have ...An Interview towards Mr. Chu Xiangyin, Vice Chairman of Beijing Subcouncil, CCPIT Reporter: Would you please tell us development of exhibition industry in Beijing? Chu Xiangyin: Beijing Statistical Bureau and us have been designing and analyzing statistical system for exhibition industry from 2003. As the largest exhibition center in Beijing,展开更多
By taking advantage of their senior citizen card, elderly residents in Shanghai over 70 used to be able to take the bus and the subway for free, but this favorable policy was discontinued on June 25. Instead, startin...By taking advantage of their senior citizen card, elderly residents in Shanghai over 70 used to be able to take the bus and the subway for free, but this favorable policy was discontinued on June 25. Instead, starting from the same month, senior Shanghai citizens - over 65 and with permanent residency - were eligible for a new monthly subsidy ranging from 75 to 600 yuan ($11-90), according to different age groups.展开更多
词数:356阅读难度:建议阅读时间:4分钟Through his work,he’s determined that people who don’t get enough sleep tend to be less healthy and have lower energy levels than those who get the recommended amount of shut eye p...词数:356阅读难度:建议阅读时间:4分钟Through his work,he’s determined that people who don’t get enough sleep tend to be less healthy and have lower energy levels than those who get the recommended amount of shut eye per night.After analyzing the results of 20 separate studies,he’s found a strong correlation between how much people sleep and how展开更多
This paper analyses the status quo of migrant workers' lack of cultural rights and interests as follows:the holistic cultural life of migrant workers is scant and monotonous;the cultural facilities provided by the...This paper analyses the status quo of migrant workers' lack of cultural rights and interests as follows:the holistic cultural life of migrant workers is scant and monotonous;the cultural facilities provided by the majority of enterprises are critically short;the cultural life of migrant workers has the characteristic of closeness to some extent;the holistic cultural consuming capacity of migrant workers is very low,and they are not satisfied with their own cultural life.This paper puts forward the measures that the government should adopt to make up for the lack of migrant workers' cultural rights and interests as follows:first,it should eliminate discrimination in terms of system,and incorporate migrant workers' cultural rights and interests into the building scope of urban public culture;second,it should establish a variety of free public culture facilities,to adapt to the needs of migrant workers;third,it should formulate various kinds of laws and regulations,to effectively safeguard migrant workers' cultural rights and interests.展开更多
Besides upper tract urothelial cell carcinoma(UTUCs),a recent study published in Science Translational Medicine has indicated that liver cancer may be associated with the exposure of aristolochic acids and similar der...Besides upper tract urothelial cell carcinoma(UTUCs),a recent study published in Science Translational Medicine has indicated that liver cancer may be associated with the exposure of aristolochic acids and similar derivatives(collectively,AA).However,according to our research,this study needs more number of samples for further verification which should be sampled from a wider range of people.展开更多
Objectives Systemic lupus erythematosus (SLE) is a multifactorial disease. Environmental factors such as viral infection(s) have been proposed as pathaetiological factors. There are particular interests in studying ly...Objectives Systemic lupus erythematosus (SLE) is a multifactorial disease. Environmental factors such as viral infection(s) have been proposed as pathaetiological factors. There are particular interests in studying lymphotropic viruses such as the Epstein-Barr virus (EBV) and cytomegalovirus (CMV). Although previous case reports and in vitro studies suggested that they may have a role, there is no direct evidence that onset of SLE or disease exacerbation is associated with active infection by these viruses. Using the very sensitive polymerase chain reaction (PCR) technique, we tried to find out evidence of active replication of these viruses in patients with SLE. Methods Thirty-four patients with SLE were compared with matched normal controls. Eleven patients were newly diagnosed to have SLE and 18 of the 34 patients had active disease as determined by a SLE Disease Activity Index (SLEDAI) score of ≥10 at the time of study. Results Our results showed no evidence of active replication or reactivation of EBV in the leucocytes amongst the newly diagnosed SLE patients, established SLE patients, patients with SLEDAI ≥10, patients with SLEDAI <10, and control subjects. There was no evidence of CMV infection in any of the subjects studied. The IgG and IgA responses against EBV early antigen (EA) and viral capsid antigen (VCA) were also studied. The IgG and IgA responses against VCA of EBV were increased in patients with SLE when compared with controls. However, there were no differences in these responses among different subgroups of patients. The mechanism of these responses was not apparent but may represent non-specific hyperimmune responses in these patients. There were no differences in the titre of IgG and IgA against EBV EA between the patient groups and controls.Conclusion There is no direct evidence that either EBV or CMV plays a direct role in the onset and/or exacerbation of SLE.展开更多
[Objective] Long-term (over 18 years) fertilization experiments were con- ducted to study the responses of crop yields and soil fertility to long-term nutrient lacking at Zhengzhou in China. [Method] The present stu...[Objective] Long-term (over 18 years) fertilization experiments were con- ducted to study the responses of crop yields and soil fertility to long-term nutrient lacking at Zhengzhou in China. [Method] The present study consisted of five treat- ments: 1 CK (no fertilizer or manure), (2) NP (nitrogen and phosphorus fertilizer applied), 31 NK (nitrogen and potassium fertilizer applied), 4 PK (phosphorus and potassium fertilizer applied) and :5 NPK (nitrogen, phosphorus and potassium fertil- izer applied). [Result] Lacking of nitrogen or phosphorus led to a low yield; however, there was no significant difference in grain yields between the NP and NPK treat- ments which maintained a higher yield. Receiving no phosphorus, soil available phosphorus content declined to about 2.5 mg/kg. The concentration of soil ex- changeable potassium remained constant at a level of 60 mg/kg under the treat- ments without potassium fertilizer addition. Soil potassium spontaneous supply ca- pacity fluctuated around 100%.[Conclusion] In fluvo-aquic soil, nitrogen and phos- phorus were two key limiting factors to grain yields, biomass and yield component factors of wheat and maize, while potassium was not. However, potassium defi- ciency may occur in the future if there was still no potassium fertilizer applied.展开更多
China's Amendment to the Criminal Procedure Law of 2012 revises the provisions on rules of evidence. There are a number of positive changes compared to the original text, but some shortcomings still exist. For instan...China's Amendment to the Criminal Procedure Law of 2012 revises the provisions on rules of evidence. There are a number of positive changes compared to the original text, but some shortcomings still exist. For instance, although the legislation recognizes the right against compulsory self-incrimination, it does not acknowledge the right to silence and retains the obligation of the accused to confess; the amended provisions are more tolerant of the use of illegal tactics like "threats," "enticement" and "deceit" to obtain confessions; the legislative approach does not resolutely deter unlawful search and seizure in the collection of evidence; and although there are provisions for protection of persona/safety, financial compensation and judicial sanctions to ensure that witnesses appear before court to testify, there are no provisions on the most important rule in the evidence system, the hearsay rule.展开更多
Chinese traditionally have viewed the extended family model as an admirable living pattern worthy of acclamation. With the rapid development of a market economy, however, values have been changing in China. Most young...Chinese traditionally have viewed the extended family model as an admirable living pattern worthy of acclamation. With the rapid development of a market economy, however, values have been changing in China. Most young people want to lead an independent life, and thanks to the immensely improved living conditions, they are moving out of their parents' homes to pursue their own lives. Family size展开更多
Prostate cancer is one of the most common malignancies.The development and progression of prostate cancer are driven by a series of genetic and epigenetic events including gene amplification that activates oncogenes a...Prostate cancer is one of the most common malignancies.The development and progression of prostate cancer are driven by a series of genetic and epigenetic events including gene amplification that activates oncogenes and chromosomal deletion that inactivates tumor suppressor genes.Whereas gene amplification occurs in human prostate cancer,gene deletion is more common,展开更多
今日上网,读此短文,双眼一亮,尤其是文章的开头!男孩和女孩相比,小学或初中时,女孩的学习成绩往往胜出同龄男孩,但是,进入高中阶段,男孩即可能后来居上,甚至超出女孩,数学成绩尤其如此。想不到美国也演绎着这种现象!不过美国人并没有...今日上网,读此短文,双眼一亮,尤其是文章的开头!男孩和女孩相比,小学或初中时,女孩的学习成绩往往胜出同龄男孩,但是,进入高中阶段,男孩即可能后来居上,甚至超出女孩,数学成绩尤其如此。想不到美国也演绎着这种现象!不过美国人并没有让这种现象从眼皮底下悄然溜走,而是做了认真的研究,研究发现:iron deficiency(缺乏)may affect children’s ability to understandmath problems!缺铁现象的原因有二: …loss of blood due to menstrual(月经的)periods and poor diets makeadolescent girks susceptible(易受影响的)to iron deficiency。 为何缺铁单单影响数学成绩呢?研究人员很老实地承认:it is not clear whyiron deficiency affected only math test scores,adding that the effects of iron on thebrain are not well understood。 文章末尾提出了一些有助于补铁的食品。有心读者勿忘一读。】展开更多
文摘Samples of the cross section microstructures of galvannealed steel sheets that lack alloying were analyzed. X-ray diffraction (XRD) tests were carried out. The study discovers that the deficit of alloying was higher on both sides of the steel sheet when compared to the center and the thickness of the coating on the sides was also higher than the center. The results of the XRD tests demonstrate that the microstructure of the coating with a lack of alloy is mainly composed of zinc,ζ and δ. They also indicate that the lack of alloying is mainly due to a lower galvannealing temperature and thicker coating. It is shown by the optical micrographs of coating that the δ phase forms first in a discontinuous manner at the interface and then rapidly pushes towards the coating and enlarges.
文摘Objectives Phenotypic switching of smooth muscle cells(SMCs) plays a critical role in the pathogenesis of atherosclerotic lesions such as coronary artery disease (CAD).Accumulating evidence demonstrates(hat a cellular repressor of E1A-stimulated genes(CREG) plays a role in the maintenance of the mature phenotype of vascular SMCs. The purpose of the present study was to assess the possible association between CREG and CAD in the Han population of North China.Methods The promoter region of CREG by direct sequencing was conducted in 48 subjects.Then SNP rs2995073 and another 4 tagSNPs(rs4657669,rs3767443, rsl6859185,rs3753921) were selected for the association study.All five selected SNPs were determined in 1161 patients with angiographically proven CAD and 960 controls with normal coronary angiograms to investigate the possible involvement of CREG in CAD.Results Genotype frequencies of the five examined polymorphisms were similarly distributed between CAD group and controls(P】0.05).Further haplotype analysis also found no significant differences in the distributions between CAD group and controls(P】0.05). Conclusions This study did not show an association between common variants of CREG and CAD in the northern Chinese Han population.
基金supported by fund from Guangdong Natural Science Foundation (No. 9251001002000002)
文摘Coronary artery spasm (CAS) is one of the leading pathological causes of a wide spectrum of ischemic heart diseases, ranging from variant angina pectoris to acute myocardial infarction and even sudden cardiac death[1]. Furthermore, Pierron et al. concluded that CAS of angiographically normal or sub-normal arteries is responsible for death or myocardial infarction in 11.6% of all cases. Oddly, the incidence of CAS is remarkably higher in Asians than in Caucasians[3], suggesting genetic involvement In its pathogenesis.
文摘Objective To study the effects of different concentrations of Quercetin on nitric oxide (NO) production and membrane fluidity of the injured human umbilical vein vascular endothelial cell line(ECV 304) with hypoxia and the lack of glucose. Methods The experiments were performed in the culture of ECV 304 injured with hypoxia and the lack of glucose in vitro. The releases of intracellular lactate dehydrogenase(LDH) of ECV 304 was measured with automatic biochemistry analysis. NO level of ECV 304 was monitored with colorimetry. The membrane fluidity of ECV 304 was measured with the fluorescence polarization method. Results After ECV 304 was cultured in hypoxia and the the lack of glucose for 24 hours, the release of LDH and the membrane fluidity were increased significantly; NO level was decreased. Preincubation of ECV 304 with 20, 80,160 μ mol·L -1 of Quercetin for 24 hours reduced LDH activity, membrane fluidity and increased the level of NO in hypoxia and the lack of glucose induced ECV 304. Conclusion These results demonstrate that Quercetin can produce the protective effect on hypoxia and the lack of glucose induced injury of ECV 304 by increasing release of NO and changing membrane fluidity.
文摘Endoscopic submucosal dissection(ESD)and related procedures are minimally invasive and cost-effective alternates to surgery.However,there is no approved or listed current procedural terminology(CPT)for ESD.We aimed to review the current reimbursement process hurdles for ESD procedures in private practice model in United States.We reviewed the data of two advanced endoscopists(one in New York and other in Pennsylvania State)performing ESD in their private practice set-ups.We found the reimbursement process was complex,with number of refusals varied from 0-9 for ESD procedures.It was not paid at all in 8.3%of cases by the medical insurance.Endoscopic mucosal resection,which is considered inferior as compared to ESD,but has a listed CPT,was denied in only 0.83%cases.Our data highlights the billing hurdles by the endoscopists to adopt ESD-related procedures in private practice model.
文摘Jilin Province, the new generation of migrant workers is an important force in the modernization construction of our province, the new generation of migrant workers into the city is the urbanization of new generation migrant workers directly affects the industrialization in the province, city and modernization level, the new generation of migrant workers into the city has an important role in the urban and rural development. The citizenization of migrant workers is a necessary measure to conform to the trend of historical development, and the government has also been committed to the promotion of the citizenization of migrant workers. The problem of the citizenization of the new generation of migrant workers in our province is based on giving full consideration to the actual situation of migrant workers in our province and drawing on the problems of migrant workers' integration into cities in other areas. The citizenization of migrant workers is an important way to improve the urbanization of our province, has a direct impact on the modernization process of our province. To promote and realize the integration of the new generation of migrant workers into the city is an inevitable requirement for China' s national conditions and the development of the times.
文摘Our country's higher education has been growing, which will bring a large number of young people to join the ranks of higher education. At present, the proportion of young university teachers accounted for more than 45% of the total number of university teachers. This paper puts forward the corresponding countermeasures, based on the analysis of young teachers' issues of professional ethics missing,to further strengthen the professional ethics of young teachers, regulate their professional conduct, prompting the establishment of higher education dedicated the noble faith, and make due contributions to the cause of higher education.
文摘An Interview towards Mr. Chu Xiangyin, Vice Chairman of Beijing Subcouncil, CCPIT Reporter: Would you please tell us development of exhibition industry in Beijing? Chu Xiangyin: Beijing Statistical Bureau and us have been designing and analyzing statistical system for exhibition industry from 2003. As the largest exhibition center in Beijing,
文摘By taking advantage of their senior citizen card, elderly residents in Shanghai over 70 used to be able to take the bus and the subway for free, but this favorable policy was discontinued on June 25. Instead, starting from the same month, senior Shanghai citizens - over 65 and with permanent residency - were eligible for a new monthly subsidy ranging from 75 to 600 yuan ($11-90), according to different age groups.
文摘词数:356阅读难度:建议阅读时间:4分钟Through his work,he’s determined that people who don’t get enough sleep tend to be less healthy and have lower energy levels than those who get the recommended amount of shut eye per night.After analyzing the results of 20 separate studies,he’s found a strong correlation between how much people sleep and how
文摘This paper analyses the status quo of migrant workers' lack of cultural rights and interests as follows:the holistic cultural life of migrant workers is scant and monotonous;the cultural facilities provided by the majority of enterprises are critically short;the cultural life of migrant workers has the characteristic of closeness to some extent;the holistic cultural consuming capacity of migrant workers is very low,and they are not satisfied with their own cultural life.This paper puts forward the measures that the government should adopt to make up for the lack of migrant workers' cultural rights and interests as follows:first,it should eliminate discrimination in terms of system,and incorporate migrant workers' cultural rights and interests into the building scope of urban public culture;second,it should establish a variety of free public culture facilities,to adapt to the needs of migrant workers;third,it should formulate various kinds of laws and regulations,to effectively safeguard migrant workers' cultural rights and interests.
基金supported by National Key Research and Development Program of China(2015AA020108)National Natural Science Foundation of China(31671377,31771460)Shanghai 111Project(B14019)
文摘Besides upper tract urothelial cell carcinoma(UTUCs),a recent study published in Science Translational Medicine has indicated that liver cancer may be associated with the exposure of aristolochic acids and similar derivatives(collectively,AA).However,according to our research,this study needs more number of samples for further verification which should be sampled from a wider range of people.
文摘Objectives Systemic lupus erythematosus (SLE) is a multifactorial disease. Environmental factors such as viral infection(s) have been proposed as pathaetiological factors. There are particular interests in studying lymphotropic viruses such as the Epstein-Barr virus (EBV) and cytomegalovirus (CMV). Although previous case reports and in vitro studies suggested that they may have a role, there is no direct evidence that onset of SLE or disease exacerbation is associated with active infection by these viruses. Using the very sensitive polymerase chain reaction (PCR) technique, we tried to find out evidence of active replication of these viruses in patients with SLE. Methods Thirty-four patients with SLE were compared with matched normal controls. Eleven patients were newly diagnosed to have SLE and 18 of the 34 patients had active disease as determined by a SLE Disease Activity Index (SLEDAI) score of ≥10 at the time of study. Results Our results showed no evidence of active replication or reactivation of EBV in the leucocytes amongst the newly diagnosed SLE patients, established SLE patients, patients with SLEDAI ≥10, patients with SLEDAI <10, and control subjects. There was no evidence of CMV infection in any of the subjects studied. The IgG and IgA responses against EBV early antigen (EA) and viral capsid antigen (VCA) were also studied. The IgG and IgA responses against VCA of EBV were increased in patients with SLE when compared with controls. However, there were no differences in these responses among different subgroups of patients. The mechanism of these responses was not apparent but may represent non-specific hyperimmune responses in these patients. There were no differences in the titre of IgG and IgA against EBV EA between the patient groups and controls.Conclusion There is no direct evidence that either EBV or CMV plays a direct role in the onset and/or exacerbation of SLE.
基金Support by the Special Fund for Agro-scientific Research in the Public Interest of China(201203030-5)National Natural Science Foundation of China(41201288,41201255,31301284)+2 种基金Key Programs for Science and Technology Development of Henan Province(132102110068)Excellent Youth Science and Technology Foundation of Henan Academy of Agricultural Sciences(2013YQ15)JIRCAS-IARRP collaborative research:Estimation of the Present States of Fertilizer Use and Livestock Production and Their Environmental Load~~
文摘[Objective] Long-term (over 18 years) fertilization experiments were con- ducted to study the responses of crop yields and soil fertility to long-term nutrient lacking at Zhengzhou in China. [Method] The present study consisted of five treat- ments: 1 CK (no fertilizer or manure), (2) NP (nitrogen and phosphorus fertilizer applied), 31 NK (nitrogen and potassium fertilizer applied), 4 PK (phosphorus and potassium fertilizer applied) and :5 NPK (nitrogen, phosphorus and potassium fertil- izer applied). [Result] Lacking of nitrogen or phosphorus led to a low yield; however, there was no significant difference in grain yields between the NP and NPK treat- ments which maintained a higher yield. Receiving no phosphorus, soil available phosphorus content declined to about 2.5 mg/kg. The concentration of soil ex- changeable potassium remained constant at a level of 60 mg/kg under the treat- ments without potassium fertilizer addition. Soil potassium spontaneous supply ca- pacity fluctuated around 100%.[Conclusion] In fluvo-aquic soil, nitrogen and phos- phorus were two key limiting factors to grain yields, biomass and yield component factors of wheat and maize, while potassium was not. However, potassium defi- ciency may occur in the future if there was still no potassium fertilizer applied.
文摘China's Amendment to the Criminal Procedure Law of 2012 revises the provisions on rules of evidence. There are a number of positive changes compared to the original text, but some shortcomings still exist. For instance, although the legislation recognizes the right against compulsory self-incrimination, it does not acknowledge the right to silence and retains the obligation of the accused to confess; the amended provisions are more tolerant of the use of illegal tactics like "threats," "enticement" and "deceit" to obtain confessions; the legislative approach does not resolutely deter unlawful search and seizure in the collection of evidence; and although there are provisions for protection of persona/safety, financial compensation and judicial sanctions to ensure that witnesses appear before court to testify, there are no provisions on the most important rule in the evidence system, the hearsay rule.
文摘Chinese traditionally have viewed the extended family model as an admirable living pattern worthy of acclamation. With the rapid development of a market economy, however, values have been changing in China. Most young people want to lead an independent life, and thanks to the immensely improved living conditions, they are moving out of their parents' homes to pursue their own lives. Family size
基金supported by the grants from the National Cancer Institute,National Institutes of Health(Nos. R01CA87921 and R01CA171189)the National Natural Science Foundation of China(No.81130044)
文摘Prostate cancer is one of the most common malignancies.The development and progression of prostate cancer are driven by a series of genetic and epigenetic events including gene amplification that activates oncogenes and chromosomal deletion that inactivates tumor suppressor genes.Whereas gene amplification occurs in human prostate cancer,gene deletion is more common,
文摘今日上网,读此短文,双眼一亮,尤其是文章的开头!男孩和女孩相比,小学或初中时,女孩的学习成绩往往胜出同龄男孩,但是,进入高中阶段,男孩即可能后来居上,甚至超出女孩,数学成绩尤其如此。想不到美国也演绎着这种现象!不过美国人并没有让这种现象从眼皮底下悄然溜走,而是做了认真的研究,研究发现:iron deficiency(缺乏)may affect children’s ability to understandmath problems!缺铁现象的原因有二: …loss of blood due to menstrual(月经的)periods and poor diets makeadolescent girks susceptible(易受影响的)to iron deficiency。 为何缺铁单单影响数学成绩呢?研究人员很老实地承认:it is not clear whyiron deficiency affected only math test scores,adding that the effects of iron on thebrain are not well understood。 文章末尾提出了一些有助于补铁的食品。有心读者勿忘一读。】