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German Überzeugt in China
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作者 WEI HONGCHEN 《China Today》 2024年第4期46-48,共3页
In this exclusive interview,Michael Schumann,chairman of the Board of the German Federal Association for Economic Development and Foreign Trade,discusses Sino-German trade relations and the“out-of-proportion”debate ... In this exclusive interview,Michael Schumann,chairman of the Board of the German Federal Association for Economic Development and Foreign Trade,discusses Sino-German trade relations and the“out-of-proportion”debate on Xinjiang. 展开更多
关键词 INTERVIEW german TRADE
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German Automobile Expert:Cooperation Instead of Tariffs
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作者 WEI HONGCHEN 《China Today》 2024年第12期58-59,共2页
“Europe has missed this development opportunity because we are short of a long-term vision.”MORE than 40 exhibitors from 15 major vehicle brands around the world,representing the latest cutting-edge technologies and... “Europe has missed this development opportunity because we are short of a long-term vision.”MORE than 40 exhibitors from 15 major vehicle brands around the world,representing the latest cutting-edge technologies and models,gathered at the seventh China International Import Expo(CIIE),which was held in Shanghai from November 5 to 10. 展开更多
关键词 EXPERT AUTOMOBILE german
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The Exploration of Identity and Belonging in Post-World War II German Literature
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作者 WANG Danruo 《Cultural and Religious Studies》 2024年第10期624-628,共5页
The research paper explores belongingness and identity in post-WWII German literature through the lens of iconic scholars,including Wolf,Şenocak,and Grass.The three authors are central and prominent figures in buildin... The research paper explores belongingness and identity in post-WWII German literature through the lens of iconic scholars,including Wolf,Şenocak,and Grass.The three authors are central and prominent figures in building German literature in the aftermath of the war.National divisions in Germany,rebuilding destroyed communities,and guilt struggles marked this literature.German authors utilized literature during the war to question and comprehend fractures,structures,and the comprehensive identity of a nation with issues of guilt,war,splitting,differences,and divisions.By comprehensively linking Wolf and Grass’authorships to modern debates on multiculturism and migration,we derive fundamental insights and ideas into their applicability to issues affecting our world today.Some of the contemporary issues are immigration,civil wars,and trauma affecting people.Authors like Grass had a significant role to play during post-WWII in Germany,like dealing with and handling migrant and refugee experiences,returning of soldiers,the Holocaust,and the hardships of life. 展开更多
关键词 BELONGINGNESS IDENTITY german post-WWII literature
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Management Practices:Shaping Employee Satisfaction and Commitment in Large German Companies
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作者 Lana Sosnovika 《Management Studies》 2024年第3期188-196,共9页
The rapid evolution of the political,economic,and social landscape has generated increased interest in understanding the contextual application of management styles and behaviours toward employees.In this context,orga... The rapid evolution of the political,economic,and social landscape has generated increased interest in understanding the contextual application of management styles and behaviours toward employees.In this context,organizations must comprehend and assess employee satisfaction to enhance productivity and realize their strategic and economic goals.Therefore,this study aims to investigate the prevailing and significant management behaviours toward employees in large German companies and their impact on employee satisfaction and job commitment.To achieve the research objective,the study will employ a qualitative method to explore management behaviours toward employees.Data were collected through interviews with randomly selected managers from different companies and departments.The study aims to uncover discrepancies or variations in employee expectations regarding management behaviour.The findings will provide a better understanding of the most prevalent and significant management behaviours toward employees in large German companies and their impact on employee satisfaction and job commitment.The results will be valuable to management in adopting suitable leadership styles and improving employee satisfaction,leading to increased productivity and organizational performance.The research will contribute to the existing body of knowledge in the field of management and human resource management by providing insights into the impact of management behaviours on employees.It will also offer recommendations to management on how to enhance employee satisfaction and job commitment,leading to improved organizational performance.In conclusion,this study will investigate the prevailing management behaviours toward employees in large German companies and their impact on employee satisfaction and job commitment. 展开更多
关键词 employee commitment employee expectations employee satisfaction management practices in large german companies leadership approaches organizational performance
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German Landscape Development and Characteristics Analysis and Study:A Case Study of 20^(th)Century German Garden Landscape Design
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作者 YANG Yi WU Ling 《Journal of Landscape Research》 2023年第2期82-84,共3页
Germany has a significant influence on the globe,both economically and culturally,being the center of Europe.Although severely damaged by the Second World War,German landscape architecture gradual y recovered through ... Germany has a significant influence on the globe,both economically and culturally,being the center of Europe.Although severely damaged by the Second World War,German landscape architecture gradual y recovered through garden exhibitions,landscape associations,and other means during a period of reflection and repair.Because of their artistry and utility,German gardens from the middle and end of the 20^(th)century had a favorable influence on landscape architecture around the globe.The shift in focus from“post-war restoration”to“enhancing the urban appearance”to“ecological restoration”not only reflects a shift in the design philosophy of the German people but also directly reflects the value orientation of design across all of Europe and even the West. 展开更多
关键词 german landscape german garden Landscape architecture
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Wisdom and Geology, the North German Basin, and the Significance of Thrown Dices
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作者 Heinz-Jürgen Brink 《International Journal of Geosciences》 CAS 2023年第1期150-186,共37页
For thousands of years, mankind is observing the surrounding nature. Often, they found no obvious clues for inexplicable and complex facts, leading to the belief that their wisdom was limited. This is in the majority ... For thousands of years, mankind is observing the surrounding nature. Often, they found no obvious clues for inexplicable and complex facts, leading to the belief that their wisdom was limited. This is in the majority of cases still true today, but based on hundreds of years of (geo-) scientific work some older thoughts can now be readjusted by combining newer geological, environmental, historical and philosophical clues. Facts about the development of the North German Basin are used to demonstrate the variability of geological systems and how these can be described by taking dice as a metaphor for ruling geological parameters. This includes all kinds of plate tectonically controlled basin forming processes, especially metamorphism of the lower crust due to a fixed mantle plume, basin filling processes with their galactic and lunar overprints, basin modifying tectonics due to internal (halokinesis, inversion) or external forces (one-sided loads at the surface due to mighty Delta sediments or glacial ice sheets) and geochemical reactions as a result of pressure and temperature changes in course of subsidence. Especially, the Rotliegend (Lower Permian) Gas Play is one of the possible illustrations of the entity of the North German Basin with its more than 70 - 90 independent parameters belonging to a global set of very complex hydrocarbon systems. Processes on Earth like the formation of systems of hydrocarbon fields as well as environmental systems (e.g. river systems, lakes, islands, sedimentary basins) are subordinated to the dices of nature and are steered invisibly by a selection of rules of the game that one understands as natural laws. The facts and remaining uncertainties as well as problems with subsurface-related processes (e.g. manmade tectonics, subsidence and uplift) guide the thoughts of engaged individuals on how to proceed wisely with limited predictability of challenges and dangers of a subsurface system. This work will be a trial to associate once more the natural sciences (geology) and the humanities (philosophy) for the benefit of both. 展开更多
关键词 North german Basin Subsurface Problems Geological Parameters WISDOM THOUGHTS Dices
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Vocational Education from a Cross-national Perspective:Comparative Analysis of China,Germany,and the United States,with a Case Study of Zhaixing
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作者 Xiyan Li Chen Chen Peishi Wu 《Journal of Educational Theory and Management》 2023年第1期21-26,共6页
This study delves into the current state and challenges of vocational education through a comparative study of cross-national vocational education and an analysis of the Zhaixing Academy case.The research reveals that... This study delves into the current state and challenges of vocational education through a comparative study of cross-national vocational education and an analysis of the Zhaixing Academy case.The research reveals that vocational education reform can draw on the experiences of the German dual system,American community colleges,and Chinese vocational education reforms,with a focus on informal education pathways,practice-oriented teaching,and flexible training methods.The Zhaixing Academy case demonstrates the application of practice-oriented teaching approaches in the field of vocational education,emphasizing individual student development needs and the advantages of education outside formal institutions,offering new insights and references for the current Chinese education system.The study proposes that governments and education departments should increase investment in vocational education,encourage collaboration between enterprises and vocational education institutions,and support innovative practice-oriented education.In the future,Zhaixing Academy can continue to focus on education reform,expand the realm of practice-oriented education,promote its educational philosophy and methods,and contribute to the diversification and sustainable development of education. 展开更多
关键词 Comparative study german dual system American community colleges Informal education pathways Practice-oriented teaching Policy recommendations
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A Study on Cross-Cultural Communication and the Cultivation of Cross-Cultural Competence in German Language Teaching in Universities
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作者 Wulan 《Journal of Contemporary Educational Research》 2023年第8期98-103,共6页
In the concept of German,cross-cultural competence is regarded as an important skill,which can help learners to better understand the differences between two cultures and establish mutual cognition.This competence can... In the concept of German,cross-cultural competence is regarded as an important skill,which can help learners to better understand the differences between two cultures and establish mutual cognition.This competence can effectively reduce unnecessary misunderstandings and improve communication efficiency.In college German classes,teachers should realize that cross-cultural communication skills are crucial to the development of students’communicative competence.Therefore,they should strive to improve their teaching methods and make the courses more interesting to help students to communicate better. 展开更多
关键词 Cross-cultural communication german teaching in colleges and universities Cross-cultural competence TRAINING
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Habitat influences on diversity of bacteria found on German cockroach in Beijing 被引量:5
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作者 FU Xue YE Lefu GE Feng 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2009年第2期249-254,共6页
Cockroaches are worldwide indoor pests carrying microorganisms of medical importance. German cockroaches (Blattella germanica) were sampled in five habitats (hospital, restaurant, office home, and market) in Beiji... Cockroaches are worldwide indoor pests carrying microorganisms of medical importance. German cockroaches (Blattella germanica) were sampled in five habitats (hospital, restaurant, office home, and market) in Beijing, and the bacteria were isolated from their external surface and alimentary tract and identified using a Biolog identification system. Cockroach densities significantly differed among habitats (market 〉 home 〉 office 〉 restaurant 〉 hospital). However, no significant differences in bacterial abundance carried by individual German cockroaches (of either sex) were found among habitats. The bacterial abundance in the gut was significantly higher than that on the surface. There were no significant differences in bacterial species richness observed among habitats, sex, carrying position or their interaction. Cluster analysis showed that cockroach densities and bacterial abundance found in the market differed significantly from the other four habitats. The bacterial diversity was not significantly reduced in sensitive facilities such as hospital and restaurant, even though pesticide and bactericide were more frequently applied there. The implications of these findings were discussed in this article. 展开更多
关键词 german cockroaches Blattella germanica DIVERSITY BACTERIA
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History (Whose Story?)“Written With Lighting”: A Cinematic Representation of the “Traumatic Past “of the Germans in World War Ⅰ
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作者 Farhat Tasannum Farah 《Psychology Research》 2019年第3期110-115,共6页
The powerful ability of film to present the traumatized German war veteran that traces how some of the most vulnerable members of society, marginalized and persecuted as ‘enemies of the nation,’ attempted to regain ... The powerful ability of film to present the traumatized German war veteran that traces how some of the most vulnerable members of society, marginalized and persecuted as ‘enemies of the nation,’ attempted to regain authority over their own minds and reclaim the authentic memory of the Great War under Weimar Germany and the Third Reich. The mentally disabled survivor of the trenches became a focus of debate between competing social and political groups, each attempting to construct their own versions of the national community and the memory of the war experience. By examining the psychological effects of war on ordinary Germans and the way these war victims have shaped perceptions of madness and mass violence, the expressionist cinema explores how the classical German cinema of the Weimar Republic was haunted by the horrors of World War I and the the devastating effects of the nation's defeat. This paper purposes to analyse how this post-traumatic cinema transformed extreme psychological states into visual expression;how it pushed the limits of cinematic representation with its fragmented story lines, distorted perspectives, and stark lighting;and how it helped create a modernist film language that anticipated film noir and remains incredibly influential today. 展开更多
关键词 Great WAR trauma germans CINEMATIC REPRESENTATION german Expressionist Films
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Prospects of Germany’s Sci-Tech Policy in the Post-Merkel Era
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作者 Li Yan 《Contemporary International Relations》 2021年第5期109-121,共13页
During Angela Merkel’s administration,the German government supported scientific and technological policies that promote German socioeconomic development.After a narrow election win for the Social Democratic Party,Me... During Angela Merkel’s administration,the German government supported scientific and technological policies that promote German socioeconomic development.After a narrow election win for the Social Democratic Party,Merkel’s position as chancellor will be filled by a leader chosen by a coalition of Germany’s political parties which differ somewhat in their positions on science and technology policy.Also affected by ChinaUS competition,EU strategy,and domestic political pressures in response to economic slowdown and the summer’s heavy flooding,post-Merkel policy is likely to increase both state intervention in scientific research and its investment in climate neutralizing technology,meanwhile strengthening trans-Atlantic tech cooperation and adjusting to China’s competitiveness,with ideology in mind.In the post-Merkel era,there will be more competition between Germany and China. 展开更多
关键词 Merkel administration german science and technological policy german election climate neutrality
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Self and Other in Contemporary German Literature Confrontation With the Foreign World in the Novels by Renate Ahrens
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作者 Albrecht Classen 《Journal of Literature and Art Studies》 2012年第3期365-376,共12页
The experience of"The Other" has become a common one for people in the 21st century, and yet it continues to be a major problem for everyone involved. Increasingly, however, immigrants and their descendants adjust a... The experience of"The Other" has become a common one for people in the 21st century, and yet it continues to be a major problem for everyone involved. Increasingly, however, immigrants and their descendants adjust and soon participate in and with the new culture(s). At the same time, those who encounter "The Other" through the contact with immigrants, have also to adapt, to learn, and to realize considerable changes in themselves in that process. Recently, a new German novelist, Renate Ahrens, has created several major works in which she reflects on this intricate phenomenon typical of our times. The present study might well be the first critical analysis of her last two novels, Zeit der Wahrheit (Time of Truth, 2005) and Fremde Schwestern (Alienated Sisters, 2011), which prove to be outstanding and first-rate literary treatments of the theme of"The Other" in an intercultural context. As Ahrens illustrates in both novels, each individual carries a heavy baggage imposed on them by the own family history, and so in both cases the confrontation with "The Other" serves exceedingly well to break open the shell of self-isolation and self-alienation. Love finally overcomes ancient conflicts and paves the way for new integrative forces supporting the formation of the "global village" we all are really living in. 展开更多
关键词 "The Other" IMMIGRATION foreign culture(s) Renate Ahrens german novelist german literature postmodern literature
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Germany and the United States in Dispute after Donald Trump Takes Office
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作者 Li Wenhong Dou Mingyue 《Contemporary International Relations》 2018年第4期113-133,共21页
After Donald Trump was elected US president,his controversial foreign policy disrupted the world situation,bringing about a series of disagreements and disputes with Germany and with Europe as a whole.As the two major... After Donald Trump was elected US president,his controversial foreign policy disrupted the world situation,bringing about a series of disagreements and disputes with Germany and with Europe as a whole.As the two major powers in the West,Germany and the United States,in a state of dispute,will have multiple effects.These disputes undoubtedly show that the German-US relations are undergoing a major adjustment and reorientation.We must also realize that disputes between Germany and the United States have alienated relations between the two countries.However,the foundation on the overall Western values between the two countries has not changed.They still have a great deal of common ground on politics,economy and security.Therefore,these disagreements and disputes will not lead to the collapse of German-US relations.Cooperation vs.controversy,control vs.independence,further equalization and alienation of the two countries will characterize future developments in German-US relations. 展开更多
关键词 german-US relations Donald Trump Europe-US relations german diplomacy
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China-Germany standardization strategic cooperation enhanced
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《China Standardization》 2022年第5期16-16,共1页
The second meeting of China-Germany Standardization Strategic Cooperation Working Group was held virtually on August17.The meeting was attended by Tian Shihong,Vice-Minister of SAMR and Administrator of SAC,and Christ... The second meeting of China-Germany Standardization Strategic Cooperation Working Group was held virtually on August17.The meeting was attended by Tian Shihong,Vice-Minister of SAMR and Administrator of SAC,and Christoph Winterhalter,CEO of the German Institute for Standardization(DIN),Florian Spiteller,Head of External Relations&Support of German Commission for Electrical,Electronic&Information Technologies of DIN and VDE(DKE)and Thomas Zielke,Head of Standardization and Patent Policies of the Federal Ministry for Economic Affairs and Climate Action of Germany(BMWK). 展开更多
关键词 germanY german COOPERATION
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Clinically detected gastroenteropancreatic neuroendocrine tumors are on the rise: Epidemiological changes in Germany 被引量:16
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作者 Hans Scherübl Brigitte Streller +8 位作者 Roland Stabenow Hermann Herbst Michael Hopfner Christoph Schwertner Joachim Steinberg Jan Eick Wanda Ring Krishna Tiwari Soren M Zappe 《World Journal of Gastroenterology》 SCIE CAS 2013年第47期9012-9019,共8页
AIM:To study the epidemiologic changes of gastroenteropancreatic neuroendocrine tumors(GEP-NET)in Germany,we analyzed two time periods 1976-1988 and1998-2006.METHODS:We evaluated epidemiological data of GEP-NET from t... AIM:To study the epidemiologic changes of gastroenteropancreatic neuroendocrine tumors(GEP-NET)in Germany,we analyzed two time periods 1976-1988 and1998-2006.METHODS:We evaluated epidemiological data of GEP-NET from the former East German National Cancer Registry(DDR Krebsregister,1976-1988)and its successor,the Joint Cancer Registry(GKR,1998-2006),which was founded after German reunification.Due to a particularly substantial database the epidemiological data from the federal states of Mecklenburg-Western Pomerania,Saxony,Brandenburg and Thuringia,covering a population of more than 10.8 million people,were analyzed.Survival probabilities were calculated using life table analysis.In addition,GEP-NET patients were evaluated for one or more second(non-GEP-NET)primary malignancies.RESULTS:A total of 2821 GEP neuroendocrine neoplasms were identified in the two registries.The overall incidence increased significantly between 1976 and2006 from 0.31(per 100.000 inhabitants per year)to2.27 for men and from 0.57 to 2.38 for women.In the later period studied(2004-2006),the small intestine was the most common site.Neuroendocrine(NE)neoplasms of the small intestine showed the largest absolute increase in incidence,while rectal NE neoplasms exhibited the greatest relative increase.Only the incidence of appendiceal NET in women showed little change between 1976 and 2006.Overall survival of patients varied for sex,tumor site and the two periods studied but improved significantly over time.Interestingly,about 20%of the GEP-NET patients developed one or more second malignancies.Their most common location was the gastrointestinal tract.GEP-NET patients without second malignancies fared better than those with one or more of them.CONCLUSION:The number of detected GEP-NET increased about 5-fold in Germany between 1976 and2006.At the same time,their anatomic distribution changed,and the survival of GEP-NET patients improved significantly.Second malignancies are common and influence the overall survival of GEP-NET patients.Thus,GEP-NET warrant our attention as well as intensive research on their tumorigenesis. 展开更多
关键词 NEUROENDOCRINE Tumor Epidemiology GASTRINOMA INSULINOMA Endoscopy german history REUNIFICATION Second malignancy
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Evaluation of proline, chlorophyll, soluble sugar content and uptake of nutrients in the German chamomile (Matricaria chamomilla L.) under drought stress and organic fertilizer treatments 被引量:5
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作者 Amin Salehi Hamidreza Tasdighi Majid Gholamhoseini 《Asian Pacific Journal of Tropical Biomedicine》 SCIE CAS 2016年第10期886-891,共6页
Objective: To investigate the effect of drought stress and organic fertilizer on German chamomile(Matricaria chamomilla) nutrient uptake, leaf chlorophyll content and osmotic adjustment under field conditions.Methods:... Objective: To investigate the effect of drought stress and organic fertilizer on German chamomile(Matricaria chamomilla) nutrient uptake, leaf chlorophyll content and osmotic adjustment under field conditions.Methods: This experiment was carried out through a randomized complete block design with a split factorial arrangement of treatments in three replications. The main plots were subjected to the following irrigation treatments: irrigation after 60, 90, 120, 150 and180 mm evaporation from Class A pan. The sub-plots were treated with three vermicompost doses(0, 5 and 10 t/ha).Results: Although drought stress reduced the nutrient percentages in the shoots, application of vermicompost enhanced the nutrient percentages, particularly when the plants were subjected to moderate to severe drought stress conditions. Moreover, the results of this study showed that the interaction between irrigation treatments and vermicompost rates on leaf chlorophyll content was significant. Comparison between the combined treatments indicated that under normal irrigation and moderate drought stress conditions chamomile plants received 5 and 10 t/ha vermicompost showed significantly higher leaf chlorophyll content comparing to the control treatment.Conclusions: Totally, organic fertilization by vermicompost could partly alleviate the effect of drought stress on chamomile by increasing N, P and K uptake and leaf soluble sugar, especially in stressed treatments. 展开更多
关键词 german chamomile(Matricaria chamomilla) Drought stress OSMOTIC adjustment Organic fertilizer VERMICOMPOST
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A Single-Frequency Linearly Polarized Fiber Laser Using a Newly Developed Heavily Tm3+-Doped Germanate Glass Fiber at 1.95 μm 被引量:8
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作者 杨麒 徐善辉 +5 位作者 李灿 杨昌盛 冯洲明 肖瑜 黄湘 杨中民 《Chinese Physics Letters》 SCIE CAS CSCD 2015年第9期62-65,共4页
A compact linearly polarized, low-noise, narrow-linewidth, single-frequency fiber laser at 1950nm is demonstrated. This compact fiber laser is based on a 21-mm-long homemade Tm3+-doped germanate glass fiber. Over 100... A compact linearly polarized, low-noise, narrow-linewidth, single-frequency fiber laser at 1950nm is demonstrated. This compact fiber laser is based on a 21-mm-long homemade Tm3+-doped germanate glass fiber. Over 100-mW stable continuous-wave single transverse and longitudinal mode lasing at 195Ohm are achieved. The measured relative intensity noise is less than -135dB/Hz at frequencies over 5 MHz. The signal-to-noise ratio of the laser is larger than 72dB, and the laser linewidth is less than 6kHz, while the obtained linear polarization extinction ratio is higher than 22 dB. 展开更多
关键词 FBG Doped germanate Glass Fiber at 1.95 DBR kHz RIN A Single-Frequency Linearly Polarized Fiber Laser Using a Newly Developed Heavily Tm
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Gain properties of germanate glasses singly doped with Tm^(3+) and Ho^(3+) ions 被引量:1
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作者 林琼斐 夏海平 +3 位作者 张约品 王金浩 章践立 贺赛龙 《Journal of Rare Earths》 SCIE EI CAS CSCD 2009年第1期76-82,共7页
Two kinds of germanate glasses singly doped with the ion concentration of 2.0mol.%Tm3+ and 2.0mol.%Ho3+, respectively, were prepared.According to McCumber theory, the absorption and stimulated emission cross-section... Two kinds of germanate glasses singly doped with the ion concentration of 2.0mol.%Tm3+ and 2.0mol.%Ho3+, respectively, were prepared.According to McCumber theory, the absorption and stimulated emission cross-sections corresponding to the 3H6←→3F4 transitions of Tm3+(at 1.8 μm) and the 5I8←→5I7 transitions of Ho3+(at 2.0 μm) were obtained, and respective gain cross-section spectra were also computed as a function of population inversion according to absorption and emission cross-sections and the ion concentrations.For Tm3+-doped germanate glasses, the maximum of the absorption, emission, and gain cross-sections reached a value higher than those reported for fluorozirconate, fluoride, and oxyfluoride glasses.For Ho3+-doped germanate glasses, the maximum of absorption, emission, and gain cross-sections reached a value higher than that reported for fluorozircoaluminate glasses.Hence, these Tm3+-doped and Ho3+-doped germanate glasses exhibited an advantage for application in mid-infrared lasers at about 1.8 and 2.0 μm wavelength. 展开更多
关键词 optical materials Tm^3+ and Ho^3+-doped germanate glasses emission cross-section gain cross-section rare earths
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Bubble Generation in Germanate Glass Induced by Femtosecond Laser 被引量:1
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作者 王珏晨 郭强兵 +3 位作者 刘小峰 戴晔 王智宇 邱建荣 《Chinese Physics Letters》 SCIE CAS CSCD 2016年第3期68-72,共5页
We report the observation of bubble generation and migration in a germanate g/ass during irradiation by a femtosecond laser of high repetition rate. Bubbles are formed around the focal area of the laser beam, and thei... We report the observation of bubble generation and migration in a germanate g/ass during irradiation by a femtosecond laser of high repetition rate. Bubbles are formed around the focal area of the laser beam, and their movement indicates the presence of thermal gravity convection in the glass melt, which is beyond the existing theoretical model about temperature l^eld of focal area. Inside the bubbles, oxygen molecules are observed by the con focal Raman micro-spectroscopy. The generation of molecular oxygen and bubbles is explained in terms of the spatial separation of Ge and 0 ions and micro-explosion inside the glass melt. 展开更多
关键词 by on AS of in Bubble Generation in germanate Glass Induced by Femtosecond Laser
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德国小蠊(Blattella germanica L.)粪便粗提物的研究 被引量:1
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作者 黄远达 吴才宏 《武汉工业学院学报》 CAS 1989年第2期15-22,共8页
本文报道德国小蠊粪便粗提物的研究,结果表明:我们已从德国小蠊的粪便中提取出具有聚集活性很高的粗提物。其中雌性成虫粪便粗提物对种内雄性成虫的活性最高,且不同虫态、龄期和性别相互之间也有一定的活性,同时,对种间的美洲大蠊(Perip... 本文报道德国小蠊粪便粗提物的研究,结果表明:我们已从德国小蠊的粪便中提取出具有聚集活性很高的粗提物。其中雌性成虫粪便粗提物对种内雄性成虫的活性最高,且不同虫态、龄期和性别相互之间也有一定的活性,同时,对种间的美洲大蠊(Periplaneta americala L.)的活性也很高,但对黑胸大蠊(P.fuliginosaServille)则有一定的拒避作用。同时,将上述粗提物进行EAG应证测定,结果表明:对种内的成虫雌性反应最强烈,抱卵雌虫次之,雄性第三;对若虫的5~6龄期较强,3~4龄期最弱,1~2龄期完全无反应。对种间的美洲大蠊和黑胸大蠊的反应强度与对种内的雄性成虫均相近似。 通过对粗提物现场应用试验结果表明:诱捕效果不高,目前暂不宜作为防治手段推广应用,但有检测、监测和测报的使用价值。此外,还对有关的几个问题进行了讨论。 展开更多
关键词 德国小蠊 粪便粗提物 聚集活性
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