Sekeres et al. （1） conducted a multicenter randomized, controlled trial to compare whether azacitidine-based combinations with lenalidomide or vorinostat produce superior overall response rates to azacitidine in the...Sekeres et al. （1） conducted a multicenter randomized, controlled trial to compare whether azacitidine-based combinations with lenalidomide or vorinostat produce superior overall response rates to azacitidine in the treatment of myelodysplastic syndromes （MDS）. In that trial, 224 patients with higher-risk MDS and 53 with chronic myelomonocytic leukemia （CMML） were enrolled and randomly assigned to the ＂azacitidine＂ group, ＂azacitidine plus lenalidomide＂ group or ＂azacitidine plus vorinostat＂ group. The researchers found that patients with MDS treated with azacitidine-based combinations had similar response rate to azacitidine monotherapy. Using genomic mutation analysis, they found that the overall response rate to azacitidine-based treatment was higher for patients with mutations in DNMT3A and lower for those with mutations in SRSF2. Whereas in another study, Welch et al. enrolled 26 patients with MDS and 90 with acute myeloid leukemia （AML） who were treated with decitabine, and they found that patients with TP53 mutations had a higher response rate, but not those with DNMT3A mutations （2）. We propose that this big discrepancy in the conclusions between the two studies might have been caused by the presence of many co-interacting factors, e.g. study aims, DNA demethylating agents, treatment protocols, and patient sources.展开更多
Robust, ultra-flexible, and multifunctional MXene-basedelectromagnetic interference (EMI) shielding nanocomposite filmsexhibit enormous potential for applications in artificial intelligence,wireless telecommunication,...Robust, ultra-flexible, and multifunctional MXene-basedelectromagnetic interference (EMI) shielding nanocomposite filmsexhibit enormous potential for applications in artificial intelligence,wireless telecommunication, and portable/wearable electronic equipment.In this work, a nacre-inspired multifunctional heterocyclic aramid(HA)/MXene@polypyrrole (PPy) (HMP) nanocomposite paper withlarge-scale, high strength, super toughness, and excellent tolerance tocomplex conditions is fabricated through the strategy of HA/MXenehydrogel template-assisted in-situ assembly of PPy. Benefiting from the"brick-and-mortar" layered structure and the strong hydrogen-bondinginteractions among MXene, HA, and PPy, the paper exhibits remarkable mechanical performances, including high tensile strength (309.7 MPa),outstanding toughness (57.6 MJ m−3), exceptional foldability, and structural stability against ultrasonication. By using the template effect ofHA/MXene to guide the assembly of conductive polymers, the synthesized paper obtains excellent electronic conductivity. More importantly,the highly continuous conductive path enables the nanocomposite paper to achieve a splendid EMI shielding effectiveness (EMI SE) of 54.1 dBat an ultra-thin thickness (25.4 μm) and a high specific EMI SE of 17,204.7 dB cm2g−1. In addition, the papers also have excellent applicationsin electromagnetic protection, electro-/photothermal de-icing, thermal therapy, and fire safety. These findings broaden the ideas for developinghigh-performance and multifunctional MXene-based films with enormous application potential in EMI shielding and thermal management.展开更多
China started a new round of large-scale equipment upgrades and trade-ins of consumer goods earlier this year,as part of its efforts to increase domestic demands and boost economic growth.It is a key decision of the C...China started a new round of large-scale equipment upgrades and trade-ins of consumer goods earlier this year,as part of its efforts to increase domestic demands and boost economic growth.It is a key decision of the Chinese government to promote the high-quality development.So far,the program has been put in place for more than half a year with impressive results.This article looks into the guiding policy for upgrades and trade-ins,its supporting measures and remarkable effect.展开更多
Shaanxi Province is rich in archaeological heritage.Its capital,Xi’an,was the capital of 13 dynasties up until the end of the Tang Dynasty(618-907),nine of which were stable,united,multiethnic societies that created ...Shaanxi Province is rich in archaeological heritage.Its capital,Xi’an,was the capital of 13 dynasties up until the end of the Tang Dynasty(618-907),nine of which were stable,united,multiethnic societies that created rich cultures and left behind an abundance of precious relics.展开更多
In recent years,China has made remarkable technological progress in a number of areas.Given this progress,it is crucial to rapidly transform technological results into productivity gains.
BACKGROUND: At present, fluconazole and intrathecal injection of amphotericin B has been widely used to treat cryptococcal meningitis. However, the application of amphotericin B can shorten course and has good effects...BACKGROUND: At present, fluconazole and intrathecal injection of amphotericin B has been widely used to treat cryptococcal meningitis. However, the application of amphotericin B can shorten course and has good effects on the treatment of cryptococcal meningitis. OBJECTIVE: To observe the effects and poor response of the intrathecal injection of amphotericin B on the treatment of cryptococcal meningitis. DESIGN: Retrospective-case analysis. SETTING: Department of Neurology, Beijing Hospital of Ministry of Public Health. PARTICIPANTS: Eight patients with cryptococcal meningitis were selected from Department of Neurology, Beijing Hospital of Ministry of Public Health from January 1995 to January 2006. Among them, there were 3 males and 5 females aged from 17 to 41 years and the course ranged from 21 days to 3 months. Patients who had symptoms of febrile and headache, positive meninges excitation, positive latex agglutination of cryptococcus of cerebrospinal fluid and positive ink smear were selected in this study. All patients provided informed consent. METHODS: Eight patients were treated with the fluconazole and intrathecal injection of amphotericin B. ① Intracranial hypertension of patients was controlled with flowing cerebrospinal fluid by repeatedly piercing waist; meanwhile, patients were taken the intrathecal injection of amphotericin B combining with flucytosine or fluconazole treatment. The dosage of amphotericin B was 1-5 mg/d at the beginning of administration, and then, the samples were added with 2 mg dexasine and 500 mL 5% glucose solution. The dosage was increased 5.0 mg per day till 50 mg per day, and the total dosage was 3.0-4.0 g. In addition, 2 mg dexasine was mixed with 4.0-5.0 mL cerebrospinal fluid, and then the solution was gradually injected into sheath for once a week. Fluconazole was dripped into vein with the volume of 400 mg per day, and then, 14 days later, fluconazole was orally taken by patients. ② Other therapies, such as decreasing intracranial hypertension, were used at the same time of administration. When cryptococcus of cerebrospinal fluid was negative, patients received the secondary therapy at anaphase. The drug withdrawal was not performed untill ink smear of cerebrospinal fluid was negative for 3 successive cultures. ③ Evaluative criteria: Evaluative criteria were classified into 4 styles: Cure: Clinical symptoms and physical signs disappeared and ink smear of cerebrospinal fluid was negative for 3 successful cultures; Improvement: Clinical symptoms and physical signs were improved remarkably, amount of cerebrospinal fluid was decreased, and ink smear was not negative; inefficiency and death. MAIN OUTCOME MEASURE: Clinical effects and poor responses of intrathecal injection of amphotericin B and fluconazole treatment. RESULTS: Among 8 patients with cryptococcal meningitis, one died due to intracranial hypertension combining with cerebral hernia, and others were returned visit at 1 year after drug withdrawal. ① Clinical effects: Among 8 patients with cryptococcal meningitis, 4 were cured, 3 were improved, and one died. There was no relapse case. ② Results of mycological examination: After first intrathecal injection of 4 improved patients, the amount of cryptococcus of cerebrospinal fluid was decreased 20%-30%; in addition, after intrathecal injection for twice or three times, the amount was decreased 33%-50%. ③ Improvement of intracranial hypertension: Seven patients had the intracranial hypertension. After intrathecal injection for twice or three times, pressure of cerebrospinal fluid was decreased below 2 451.75 Pa, and the clinical symptoms were relieved remarkably. ④ Poor responses: After intrathecal injection, patients had headache, nausea, emesis and pain of lower limb. Especially, 2 cases had transient paraplegia of both lower limbs, one had retention of urine, and two had conscious disturbance. CONCLUSION: Controlling intracranial hypertension with repeatedly piercing waist and intrathecal injection of amphotericin B combining with fluconazole treatment are well therapeutic effects on the fluconazole treatment of cryptococcal meningitis. Healing rate is 50%; however, there are a lot of poor responses at various degrees.展开更多
After a relatively long-term injection of hydrocortisone into rats, the strength of bone (anti-stress capacity) reduced evidently, while the rigidity (anti-deformity capacity) in-creased markedly (ie, bone fragility e...After a relatively long-term injection of hydrocortisone into rats, the strength of bone (anti-stress capacity) reduced evidently, while the rigidity (anti-deformity capacity) in-creased markedly (ie, bone fragility elevated). At the same time, the content of serum 25(OH)D3 decreased remarkably. After oral administration of Liuwei Dihuang Wan (六味地黄丸), anti-stress capability of bone increased evidently and its anti-deformity capability returned to normal; however, there was no elevation of serum 25(OH)D3 content The ef-fect of Longmu Zhuanggu Chongji (龙牡壮骨冲剂) or Jisheng Shenqi Wan (济生肾气丸) was lower than that of Linwei Dihuang Wan. The experiments suggest that Liuwei Dihuang Wan is beneficial to preventing and curing osteoporosis, but no correlation between its mechanism and the metabolism of 25(OH)D3 was demonstrated.展开更多
Low frequency (LF) current (period】25 hour) variation at 5 stations in Jiaozhou Bay. Shijiousuo, and the central part of the Yellow Sea were studied by analyzing the observed long-period current data series in the st...Low frequency (LF) current (period】25 hour) variation at 5 stations in Jiaozhou Bay. Shijiousuo, and the central part of the Yellow Sea were studied by analyzing the observed long-period current data series in the study area.1) There are obvious periods of 3 and 5 days in the LF current spectra. The energy spectral value of LF current of a 5 day period is remarkably larger than that of a 3 day period. These periods reflect the correlations between the LF current variation and the LF water level variation.2) The feet that the 15-day period in the LF current spectra corresponds to the semi-monthly celestial tide period indicates that the tide-induced residual current is an important and most evident LF current component in the bay.3) The LF current spectral energy density in the northward direction is much larger than that in the eastward direction. This shows the frequency and strength of the wind field in the northward direction are evidently larger than that in the eastward direction.展开更多
The Pearl River Delta is a unique and extremely complicated ecological system remarkably influenced by runoff. Investigation data obtained in March of 1987 were studied and used to calculate the transformation rate of...The Pearl River Delta is a unique and extremely complicated ecological system remarkably influenced by runoff. Investigation data obtained in March of 1987 were studied and used to calculate the transformation rate of carbon , the transformation coefficients of river water and sea water , and the flux coefficient of carbon in the reservoirs in the three estuarine bays (Lingdingyang , Modaomen and Yamen) of the Pearl River .展开更多
The authors corrected the abnormal fetal posi-tion in 413 cases of pregnant women by the auri-cular plaster therapy(APT)with a success rate of83.3%—remarkably higher than treatment by knee-chest positioning.Further a...The authors corrected the abnormal fetal posi-tion in 413 cases of pregnant women by the auri-cular plaster therapy(APT)with a success rate of83.3%—remarkably higher than treatment by knee-chest positioning.Further analysis showed that APTwas also supperior to the knee-chest positioning forprimiparae,breech fetal position,and pregancies over33 weeks.The authors also noted the clinical signsof successful cases and failures.展开更多
The contents of Met-enkephalin(MEK)andLeu-enkephalin(LEK)in striatum and MEK in hypo-thalamus of rat increased markedly after electroacu-puncture analgesia(EAA).Intraperitoneal injec-tion of phentolamine,a blocker of ...The contents of Met-enkephalin(MEK)andLeu-enkephalin(LEK)in striatum and MEK in hypo-thalamus of rat increased markedly after electroacu-puncture analgesia(EAA).Intraperitoneal injec-tion of phentolamine,a blocker of a receptor,po-tentiated the EAA and abolished the effects of EAincreasing MEK and LEK contents;while injectionof propranolol,a blocker of β receptor,partially in-hibited the EAA,as well as abolished the effects ofEA increasing MEK and LEK concentrations in thestriatum and the hypothalamus,and also elevatedthe MEK and LEK contents in hippocampus andMEK level in cortex.The results indicate that EA regulates metabo-lism of MEK and LEK,as well as EAA partiallyvia α and β receptors.展开更多
Glomerulonephritis,an importantcause of renal failure,is an immunologicdisease.Allergic reaction and blood coagu-lation abnormality play the main roles in itspathogenesis.Traditional Chinese drugs areoften effective i...Glomerulonephritis,an importantcause of renal failure,is an immunologicdisease.Allergic reaction and blood coagu-lation abnormality play the main roles in itspathogenesis.Traditional Chinese drugs areoften effective in clinical therapy.Therefore,to explore their therapeutic effect and mech-anism in laboratory is signifieant.In general.展开更多
1307 Cases with painful disease were reported. 568 cases were cured, 43.4% ofthe total: 476, remarkably effective, 36.4%; 194, effective, 14.9%; 69, no effect, 5.3%. The to-tal effective rate was 94.7%. The rate for t...1307 Cases with painful disease were reported. 568 cases were cured, 43.4% ofthe total: 476, remarkably effective, 36.4%; 194, effective, 14.9%; 69, no effect, 5.3%. The to-tal effective rate was 94.7%. The rate for the cured and remarkably effective was 79.8 %. The acutepain with short diseases course can be treated with instant effect. Clinical practice has proved that di-agnosis and treatment based on an overall analysis of symptoms and signs, the right option of acu-points and correct use of stimulations are the key link of how to increase the curative effect.展开更多
Liposomes have several advantages over viral vectorsfor gene delivery both in vitro and in vivo. However,few data are available concerning gene transfer intohematopoietic stem cells. In order to explore theefficiency ...Liposomes have several advantages over viral vectorsfor gene delivery both in vitro and in vivo. However,few data are available concerning gene transfer intohematopoietic stem cells. In order to explore theefficiency and the stability of expression of gene transferinto hematopoietic stem cells, we have transduced twomarker genes (Neo^R and Lac Z) co-transfer into humanbone marrow CD34^+ hematopoietic stem cells展开更多
Longiing tea is a famous traditional green tea in China.on the manufacturing process,the tan-fang process is an important treatment to make thecharacteristic aroma of longjing tea.In this paper,the tan-fang effect on ...Longiing tea is a famous traditional green tea in China.on the manufacturing process,the tan-fang process is an important treatment to make thecharacteristic aroma of longjing tea.In this paper,the tan-fang effect on the production of aroma has been investigated bycomparing each aroma pattern among longjing tea made by different tan-fang treatments,antthe specific role of the tan-fang process is discussed.展开更多
The cerebral infarction was treated with acupuncture and blood-letting puncture and observed with experimental hemorrheological method. The results indicated that the blood-letting puncture was more advantageous than ...The cerebral infarction was treated with acupuncture and blood-letting puncture and observed with experimental hemorrheological method. The results indicated that the blood-letting puncture was more advantageous than conventional acupuncture in the treatment on cerebralinfarction. It was suggested that the mechanism of the blood-letting puncture might be related to lowering down the blood viscosity principally. It is an effective therapeutic method worthy spreading inclinic.展开更多
The temperature dependences of the dynamic-elastic and viscous susceptibilities have been measured for Au83Fe17, after cold-rolling. It is found that cold-rolling reduces the Curie temperature and raises the spin-free...The temperature dependences of the dynamic-elastic and viscous susceptibilities have been measured for Au83Fe17, after cold-rolling. It is found that cold-rolling reduces the Curie temperature and raises the spin-freezing temperature remarkably. These results can be explained on the basis of the precipitation medal proposed by Borg and Violet.展开更多
I.Post-Cold War Security Situation in the Asia-PacificAs the Cold War withered away,the bi-polar confrontation in the Asia-Pacificfinally came to an end.Military confrontation,the previous dominating fac-tor in the re...I.Post-Cold War Security Situation in the Asia-PacificAs the Cold War withered away,the bi-polar confrontation in the Asia-Pacificfinally came to an end.Military confrontation,the previous dominating fac-tor in the region’s international relations,has given place to economic competitionand cooperation.For that reason,countries in the region now display unprecedent-ed interest in the Asian-Pacific multi-lateral security dialogues(APMSD),hopingthat they might create an environment favorable to their economic development.Taking as a whole,the Asian-Pacific security situation has been展开更多
Chinese direct investment is increasing remarkably in Germany with more frequent M 8c A activities,according to a recent report by Deutsche Bank.The report,released by Hannah Levinger,Deutsche Bank economist,shows tha...Chinese direct investment is increasing remarkably in Germany with more frequent M 8c A activities,according to a recent report by Deutsche Bank.The report,released by Hannah Levinger,Deutsche Bank economist,shows that with the upgrading of Chinese government’s support for enterprises’going global and the progress of investment agreement negotiations between China and Europe,Chinese investment in Germany is expected展开更多
文摘Sekeres et al. （1） conducted a multicenter randomized, controlled trial to compare whether azacitidine-based combinations with lenalidomide or vorinostat produce superior overall response rates to azacitidine in the treatment of myelodysplastic syndromes （MDS）. In that trial, 224 patients with higher-risk MDS and 53 with chronic myelomonocytic leukemia （CMML） were enrolled and randomly assigned to the ＂azacitidine＂ group, ＂azacitidine plus lenalidomide＂ group or ＂azacitidine plus vorinostat＂ group. The researchers found that patients with MDS treated with azacitidine-based combinations had similar response rate to azacitidine monotherapy. Using genomic mutation analysis, they found that the overall response rate to azacitidine-based treatment was higher for patients with mutations in DNMT3A and lower for those with mutations in SRSF2. Whereas in another study, Welch et al. enrolled 26 patients with MDS and 90 with acute myeloid leukemia （AML） who were treated with decitabine, and they found that patients with TP53 mutations had a higher response rate, but not those with DNMT3A mutations （2）. We propose that this big discrepancy in the conclusions between the two studies might have been caused by the presence of many co-interacting factors, e.g. study aims, DNA demethylating agents, treatment protocols, and patient sources.
基金supported by the Fundamental Research Funds for the Central Universities and Heilongjiang Provincial Natural Science Foundation of China(Grant No.YQ2020E009).
文摘Robust, ultra-flexible, and multifunctional MXene-basedelectromagnetic interference (EMI) shielding nanocomposite filmsexhibit enormous potential for applications in artificial intelligence,wireless telecommunication, and portable/wearable electronic equipment.In this work, a nacre-inspired multifunctional heterocyclic aramid(HA)/MXene@polypyrrole (PPy) (HMP) nanocomposite paper withlarge-scale, high strength, super toughness, and excellent tolerance tocomplex conditions is fabricated through the strategy of HA/MXenehydrogel template-assisted in-situ assembly of PPy. Benefiting from the"brick-and-mortar" layered structure and the strong hydrogen-bondinginteractions among MXene, HA, and PPy, the paper exhibits remarkable mechanical performances, including high tensile strength (309.7 MPa),outstanding toughness (57.6 MJ m−3), exceptional foldability, and structural stability against ultrasonication. By using the template effect ofHA/MXene to guide the assembly of conductive polymers, the synthesized paper obtains excellent electronic conductivity. More importantly,the highly continuous conductive path enables the nanocomposite paper to achieve a splendid EMI shielding effectiveness (EMI SE) of 54.1 dBat an ultra-thin thickness (25.4 μm) and a high specific EMI SE of 17,204.7 dB cm2g−1. In addition, the papers also have excellent applicationsin electromagnetic protection, electro-/photothermal de-icing, thermal therapy, and fire safety. These findings broaden the ideas for developinghigh-performance and multifunctional MXene-based films with enormous application potential in EMI shielding and thermal management.
文摘China started a new round of large-scale equipment upgrades and trade-ins of consumer goods earlier this year,as part of its efforts to increase domestic demands and boost economic growth.It is a key decision of the Chinese government to promote the high-quality development.So far,the program has been put in place for more than half a year with impressive results.This article looks into the guiding policy for upgrades and trade-ins,its supporting measures and remarkable effect.
文摘Shaanxi Province is rich in archaeological heritage.Its capital,Xi’an,was the capital of 13 dynasties up until the end of the Tang Dynasty(618-907),nine of which were stable,united,multiethnic societies that created rich cultures and left behind an abundance of precious relics.
文摘In recent years,China has made remarkable technological progress in a number of areas.Given this progress,it is crucial to rapidly transform technological results into productivity gains.
文摘BACKGROUND: At present, fluconazole and intrathecal injection of amphotericin B has been widely used to treat cryptococcal meningitis. However, the application of amphotericin B can shorten course and has good effects on the treatment of cryptococcal meningitis. OBJECTIVE: To observe the effects and poor response of the intrathecal injection of amphotericin B on the treatment of cryptococcal meningitis. DESIGN: Retrospective-case analysis. SETTING: Department of Neurology, Beijing Hospital of Ministry of Public Health. PARTICIPANTS: Eight patients with cryptococcal meningitis were selected from Department of Neurology, Beijing Hospital of Ministry of Public Health from January 1995 to January 2006. Among them, there were 3 males and 5 females aged from 17 to 41 years and the course ranged from 21 days to 3 months. Patients who had symptoms of febrile and headache, positive meninges excitation, positive latex agglutination of cryptococcus of cerebrospinal fluid and positive ink smear were selected in this study. All patients provided informed consent. METHODS: Eight patients were treated with the fluconazole and intrathecal injection of amphotericin B. ① Intracranial hypertension of patients was controlled with flowing cerebrospinal fluid by repeatedly piercing waist; meanwhile, patients were taken the intrathecal injection of amphotericin B combining with flucytosine or fluconazole treatment. The dosage of amphotericin B was 1-5 mg/d at the beginning of administration, and then, the samples were added with 2 mg dexasine and 500 mL 5% glucose solution. The dosage was increased 5.0 mg per day till 50 mg per day, and the total dosage was 3.0-4.0 g. In addition, 2 mg dexasine was mixed with 4.0-5.0 mL cerebrospinal fluid, and then the solution was gradually injected into sheath for once a week. Fluconazole was dripped into vein with the volume of 400 mg per day, and then, 14 days later, fluconazole was orally taken by patients. ② Other therapies, such as decreasing intracranial hypertension, were used at the same time of administration. When cryptococcus of cerebrospinal fluid was negative, patients received the secondary therapy at anaphase. The drug withdrawal was not performed untill ink smear of cerebrospinal fluid was negative for 3 successive cultures. ③ Evaluative criteria: Evaluative criteria were classified into 4 styles: Cure: Clinical symptoms and physical signs disappeared and ink smear of cerebrospinal fluid was negative for 3 successful cultures; Improvement: Clinical symptoms and physical signs were improved remarkably, amount of cerebrospinal fluid was decreased, and ink smear was not negative; inefficiency and death. MAIN OUTCOME MEASURE: Clinical effects and poor responses of intrathecal injection of amphotericin B and fluconazole treatment. RESULTS: Among 8 patients with cryptococcal meningitis, one died due to intracranial hypertension combining with cerebral hernia, and others were returned visit at 1 year after drug withdrawal. ① Clinical effects: Among 8 patients with cryptococcal meningitis, 4 were cured, 3 were improved, and one died. There was no relapse case. ② Results of mycological examination: After first intrathecal injection of 4 improved patients, the amount of cryptococcus of cerebrospinal fluid was decreased 20%-30%; in addition, after intrathecal injection for twice or three times, the amount was decreased 33%-50%. ③ Improvement of intracranial hypertension: Seven patients had the intracranial hypertension. After intrathecal injection for twice or three times, pressure of cerebrospinal fluid was decreased below 2 451.75 Pa, and the clinical symptoms were relieved remarkably. ④ Poor responses: After intrathecal injection, patients had headache, nausea, emesis and pain of lower limb. Especially, 2 cases had transient paraplegia of both lower limbs, one had retention of urine, and two had conscious disturbance. CONCLUSION: Controlling intracranial hypertension with repeatedly piercing waist and intrathecal injection of amphotericin B combining with fluconazole treatment are well therapeutic effects on the fluconazole treatment of cryptococcal meningitis. Healing rate is 50%; however, there are a lot of poor responses at various degrees.
文摘After a relatively long-term injection of hydrocortisone into rats, the strength of bone (anti-stress capacity) reduced evidently, while the rigidity (anti-deformity capacity) in-creased markedly (ie, bone fragility elevated). At the same time, the content of serum 25(OH)D3 decreased remarkably. After oral administration of Liuwei Dihuang Wan (六味地黄丸), anti-stress capability of bone increased evidently and its anti-deformity capability returned to normal; however, there was no elevation of serum 25(OH)D3 content The ef-fect of Longmu Zhuanggu Chongji (龙牡壮骨冲剂) or Jisheng Shenqi Wan (济生肾气丸) was lower than that of Linwei Dihuang Wan. The experiments suggest that Liuwei Dihuang Wan is beneficial to preventing and curing osteoporosis, but no correlation between its mechanism and the metabolism of 25(OH)D3 was demonstrated.
文摘Low frequency (LF) current (period】25 hour) variation at 5 stations in Jiaozhou Bay. Shijiousuo, and the central part of the Yellow Sea were studied by analyzing the observed long-period current data series in the study area.1) There are obvious periods of 3 and 5 days in the LF current spectra. The energy spectral value of LF current of a 5 day period is remarkably larger than that of a 3 day period. These periods reflect the correlations between the LF current variation and the LF water level variation.2) The feet that the 15-day period in the LF current spectra corresponds to the semi-monthly celestial tide period indicates that the tide-induced residual current is an important and most evident LF current component in the bay.3) The LF current spectral energy density in the northward direction is much larger than that in the eastward direction. This shows the frequency and strength of the wind field in the northward direction are evidently larger than that in the eastward direction.
基金This project was supported by the National Science Foundation of China
文摘The Pearl River Delta is a unique and extremely complicated ecological system remarkably influenced by runoff. Investigation data obtained in March of 1987 were studied and used to calculate the transformation rate of carbon , the transformation coefficients of river water and sea water , and the flux coefficient of carbon in the reservoirs in the three estuarine bays (Lingdingyang , Modaomen and Yamen) of the Pearl River .
文摘The authors corrected the abnormal fetal posi-tion in 413 cases of pregnant women by the auri-cular plaster therapy(APT)with a success rate of83.3%—remarkably higher than treatment by knee-chest positioning.Further analysis showed that APTwas also supperior to the knee-chest positioning forprimiparae,breech fetal position,and pregancies over33 weeks.The authors also noted the clinical signsof successful cases and failures.
文摘The contents of Met-enkephalin(MEK)andLeu-enkephalin(LEK)in striatum and MEK in hypo-thalamus of rat increased markedly after electroacu-puncture analgesia(EAA).Intraperitoneal injec-tion of phentolamine,a blocker of a receptor,po-tentiated the EAA and abolished the effects of EAincreasing MEK and LEK contents;while injectionof propranolol,a blocker of β receptor,partially in-hibited the EAA,as well as abolished the effects ofEA increasing MEK and LEK concentrations in thestriatum and the hypothalamus,and also elevatedthe MEK and LEK contents in hippocampus andMEK level in cortex.The results indicate that EA regulates metabo-lism of MEK and LEK,as well as EAA partiallyvia α and β receptors.
文摘Glomerulonephritis,an importantcause of renal failure,is an immunologicdisease.Allergic reaction and blood coagu-lation abnormality play the main roles in itspathogenesis.Traditional Chinese drugs areoften effective in clinical therapy.Therefore,to explore their therapeutic effect and mech-anism in laboratory is signifieant.In general.
文摘1307 Cases with painful disease were reported. 568 cases were cured, 43.4% ofthe total: 476, remarkably effective, 36.4%; 194, effective, 14.9%; 69, no effect, 5.3%. The to-tal effective rate was 94.7%. The rate for the cured and remarkably effective was 79.8 %. The acutepain with short diseases course can be treated with instant effect. Clinical practice has proved that di-agnosis and treatment based on an overall analysis of symptoms and signs, the right option of acu-points and correct use of stimulations are the key link of how to increase the curative effect.
文摘Liposomes have several advantages over viral vectorsfor gene delivery both in vitro and in vivo. However,few data are available concerning gene transfer intohematopoietic stem cells. In order to explore theefficiency and the stability of expression of gene transferinto hematopoietic stem cells, we have transduced twomarker genes (Neo^R and Lac Z) co-transfer into humanbone marrow CD34^+ hematopoietic stem cells
文摘Longiing tea is a famous traditional green tea in China.on the manufacturing process,the tan-fang process is an important treatment to make thecharacteristic aroma of longjing tea.In this paper,the tan-fang effect on the production of aroma has been investigated bycomparing each aroma pattern among longjing tea made by different tan-fang treatments,antthe specific role of the tan-fang process is discussed.
文摘The cerebral infarction was treated with acupuncture and blood-letting puncture and observed with experimental hemorrheological method. The results indicated that the blood-letting puncture was more advantageous than conventional acupuncture in the treatment on cerebralinfarction. It was suggested that the mechanism of the blood-letting puncture might be related to lowering down the blood viscosity principally. It is an effective therapeutic method worthy spreading inclinic.
文摘The temperature dependences of the dynamic-elastic and viscous susceptibilities have been measured for Au83Fe17, after cold-rolling. It is found that cold-rolling reduces the Curie temperature and raises the spin-freezing temperature remarkably. These results can be explained on the basis of the precipitation medal proposed by Borg and Violet.
文摘I.Post-Cold War Security Situation in the Asia-PacificAs the Cold War withered away,the bi-polar confrontation in the Asia-Pacificfinally came to an end.Military confrontation,the previous dominating fac-tor in the region’s international relations,has given place to economic competitionand cooperation.For that reason,countries in the region now display unprecedent-ed interest in the Asian-Pacific multi-lateral security dialogues(APMSD),hopingthat they might create an environment favorable to their economic development.Taking as a whole,the Asian-Pacific security situation has been
文摘Chinese direct investment is increasing remarkably in Germany with more frequent M 8c A activities,according to a recent report by Deutsche Bank.The report,released by Hannah Levinger,Deutsche Bank economist,shows that with the upgrading of Chinese government’s support for enterprises’going global and the progress of investment agreement negotiations between China and Europe,Chinese investment in Germany is expected
