Background: Destroyed lung is a lung condition commonly caused by tuberculosis. Other causes include bronchiectasis, aspergilloma, emphysema, etc. It is characterized by extensive lung destruction and reduced lung fun...Background: Destroyed lung is a lung condition commonly caused by tuberculosis. Other causes include bronchiectasis, aspergilloma, emphysema, etc. It is characterized by extensive lung destruction and reduced lung function. Chest X-ray, chest CT, bronchography, and ventilation-perfusion ratio scan are the commonest radiologic diagnostic tools. Treatment of choice may include pneumonectomy. The study aims to highlight the common causes of destroyed lung and the major presenting complaints based on age, sex and affected lungs. Method: Published cases from English medical journals were evaluated and analyzed. Results: 31 published cases on destroyed lung were reviewed. 58.1% showed that the left lung was the most commonly affected lung. The condition was more common in males (71%). Based on our review, the commonest causes are pneumonia and tuberculosis at 25.9% and 22.8%, respectively. Conclusion: Pneumonia and Tuberculosis seem to be the commonest causes of destroyed lung based on our review, with left sided affectation being more predominant.展开更多
Lithium is becoming common in our everyday lives.It is the key ingredient in the batteries of our mobile phones and electric vehicles,but have you ever wondered where it comes from?A new study Ied by Prof.ZHAO Gang an...Lithium is becoming common in our everyday lives.It is the key ingredient in the batteries of our mobile phones and electric vehicles,but have you ever wondered where it comes from?A new study Ied by Prof.ZHAO Gang and Dr.Yerra Bharat Kumar from the National Astronomical Observatories of Chinese Academy of Sciences(NAOC)provides a fresh understanding of both how Lithium is made,and how it is destroyed.展开更多
Among chronic pulmonary infections, pulmonary actinomycosis is a rare one, caused by a gram-positive microaerophilic bacterium called Actinomyces. Aside from cervicofacial or abdominopelvic actinomycosis, pulmonary in...Among chronic pulmonary infections, pulmonary actinomycosis is a rare one, caused by a gram-positive microaerophilic bacterium called Actinomyces. Aside from cervicofacial or abdominopelvic actinomycosis, pulmonary involvement is rare, and sometimes this type of infection results in a misdiagnosis of pulmonary tuberculosis or carcinoma. Clinical presentation of pulmonary actinomycosis could be acute or subacute, with lobar involvement. However, the disease is most commonly diagnosed at the chronic phase, with patients presenting mild fever, weight loss, and occasional hemoptysis. Here, we described the case of a 30-year-old male patient, presented with a history of respiratory complaints for more than three years and was diagnosed clinically and radiologically as a case of a destroyed left lung. Later on, post-operative tissue diagnosis was confirmed—pulmonary actinomycosis.展开更多
This paper looks into David Herbert Lawrence＇s characterization of Mrs. Morel in his famous novel Sons and Lovers （1962）. Mrs. Morel has long been regarded by feminist critics as the destroyed, a victim destroyed b...This paper looks into David Herbert Lawrence＇s characterization of Mrs. Morel in his famous novel Sons and Lovers （1962）. Mrs. Morel has long been regarded by feminist critics as the destroyed, a victim destroyed by the male-dominated society, and her son Paul has been viewed as a destroyer of women. Based on a close reading of the novel, this paper examines Lawrence＇s characterization of Mrs. Morel and reveals that Mrs Morel actually belongs to the destroyer instead of the destroyed through an analysis of her relationship with the three male characters in the novel, thus providing new insights into the understanding of this classic novel.展开更多
Highlights The RT-RAA-VF assay developed for the NiV P gene can perform rapid detection of NiV within 20 min at 42℃ with high specificity.This assay is capable of attaining sensitivity to a single copy of NiV RNA tra...Highlights The RT-RAA-VF assay developed for the NiV P gene can perform rapid detection of NiV within 20 min at 42℃ with high specificity.This assay is capable of attaining sensitivity to a single copy of NiV RNA transcripts.This assay effectively avoids false positives caused by aerosol contamination with a sealed disposable nucleic acid visualization test paper device.展开更多
The corrosion of ECR glass fiber was investigated by the analysis methods of weight loss ratio under different acids and at various durations.Weight loss,leaching of cations,and surface composition of ECR glass fiber ...The corrosion of ECR glass fiber was investigated by the analysis methods of weight loss ratio under different acids and at various durations.Weight loss,leaching of cations,and surface composition of ECR glass fiber were analyzed.The corrosion mechanism of ECR glass fiber in acid environment was also discussed.The experimental results showed that the corrosion degree of ECR glass fiber in different acids obeyed the order： HNO3〉H2SO4〉HCl.The acid effects on corrosion of ECR glass fiberis were totally different.Hydrochloric acid mainly destroyed the network structure of [AlO4],while sulfuric acid and nitric acid mainly destroyed the structure of [SiO4].The acid resistance of ECR glass fiber is much better than that of E glass fiber due to the generation of intermediate product silicic acid gel Si（OH）4 during ion exchange.It can adhere to the glass surface to form a thin film and hinder the proceeding of corrosion.展开更多
Environmental crisis: serious greenhouse effect, destroyed ozonosphere, acid rain pollution, water resources cri-sis, land desertization, forest decrease, water and soil loss, species deracination, poisonous chemical ...Environmental crisis: serious greenhouse effect, destroyed ozonosphere, acid rain pollution, water resources cri-sis, land desertization, forest decrease, water and soil loss, species deracination, poisonous chemical pollution...... Dripping andleakage phenomena during chemical process, not only cause economic losses but also cause serious pollution accident and also could damage people's health. Develop green chemical industry and adopt green technology are the important ways to reduce pollution and to advance chemical sustainable development.展开更多
Fluorinated diols(FDO)with dangling chain were introduced into polyether urethanes(PEUs)as chain extender in order to achieve internal plasticization.Based on temperature dependent Fourier transform infrared(FTIR)spec...Fluorinated diols(FDO)with dangling chain were introduced into polyether urethanes(PEUs)as chain extender in order to achieve internal plasticization.Based on temperature dependent Fourier transform infrared(FTIR)spectroscopy results,the fluorinated polyether urethanes(FPEUs)exhibited weaker hydrogen bonding between C=O and N―H groups with addition of FDO.The crystallinity of hard domain was destroyed determined by thermal analysis.Combined with the results of dynamic mechanical analysis(DMA)and dissipative particle dynamics(DPD)simulation,it was proved that more loosely aggregated hard domains with weakened interaction separated from soft segment were formed.Rheological analysis indicated that FDO reduced the complex viscosity and viscous flow activation energy which endowed the polymer with more flexibility.Despite the loss of hydrogen bonds,there was no significant decline in mechanical property resulting from the decrease of hard segment dissolved in soft segment phase.The presence of fluorinated carbon side chain could function as internal plasticizer and contribute to the processability of polyurethane.展开更多
By using the molecular dynamics simulation,we have studied the dynamic behaviors of small energetic clusters deposited on the surface.We find that,at incident energy as low as 1.0eV/atom,the structure of the cluster i...By using the molecular dynamics simulation,we have studied the dynamic behaviors of small energetic clusters deposited on the surface.We find that,at incident energy as low as 1.0eV/atom,the structure of the cluster is destroyed and cluster atoms form an epitaxial layer above the surface.At high energy incidence,the site exchange between cluster atom and surface atom is observed.The effects of the cluster size and orientation are discussed.展开更多
The United States and theSoviet Union announced agreementin principle on September 18 ona historic treaty wiping out allintermediate-range nuclear wea-pon which would be signed at asuperpower summit this year. The 42n...The United States and theSoviet Union announced agreementin principle on September 18 ona historic treaty wiping out allintermediate-range nuclear wea-pon which would be signed at asuperpower summit this year. The 42nd session of the UNGeneral Assembly began a 3-weekgeneral debate on September 21. The US naval forces in theGulf attacked and seized anIranian ship on September 21 toprevent it from laying mines.The ship was destroyed by the展开更多
Xi’an, called Chan’an in the Tang Dynasty (618-907), was a famous open city then and a tourist attraction today. First built at the time of the Western Han (206 BC-8 AD), Chang’an was 70 kilometres from the present...Xi’an, called Chan’an in the Tang Dynasty (618-907), was a famous open city then and a tourist attraction today. First built at the time of the Western Han (206 BC-8 AD), Chang’an was 70 kilometres from the present-day Xi’an. After Chang’an was destroyed by war, emperors of the Sui Dynasty built a new city Daxing between 582 and 681 on the site of the present-day Xi’ an and made it the capital of the state. When the展开更多
If we survey the fall of Mesopotamian empires from the beginning of written sources to the end of the Neo-Babylonian Empire we find one astonishing similarity:the warlike people that finally destroyed these empires ca...If we survey the fall of Mesopotamian empires from the beginning of written sources to the end of the Neo-Babylonian Empire we find one astonishing similarity:the warlike people that finally destroyed these empires came from the East.A number of factors,not at least geography,might explain this,but here I want to focus on the effect the Mesopotamian empires had on the bordering regions themselves and discuss the possibility that the constitution of these organized political actors pushing back against the empire was a result of Mesopotamian imperial politics themselves determined by a poor evaluation of the empire’s ability to exercise direct control of areas where military actions took place.The aim of this paper is to build on earlier work and investigate the fall of the empires of Akkad and Ur III under a systemic perspective,in order to understand which factors might have caused the decline and fall of these empires that were not merely accidental.Many reasons have been suggested for the fall of Mesopotamian empires,like climatic change(Kinnier-Wilson 2005),salinization of the soil(Powell 1985),or the arrival of new peoples.Here,I want to focus on the question of whether this“arrival of new people”may be better described as the establishment of opposing political forces.They are often described as coming out of nowhere,but I would like to suggest that this was the result of an ethnogenesis or secondary state formation at the border of the empire.展开更多
Introduction In the First Dynasty Saqqara Mastaba 3505,Walter Emery found a group of seal-impressions1 in the fill of the staircase and in the nearby east corridor.He classified these seal-impressions and stated that ...Introduction In the First Dynasty Saqqara Mastaba 3505,Walter Emery found a group of seal-impressions1 in the fill of the staircase and in the nearby east corridor.He classified these seal-impressions and stated that they were the first type(domeshaped and composed of grey-black clay).2 One of the seal impressions of this type had a surface of yellowish colored clay.These seal impressions are preserved because they were inadvertently burnt when the tombs were destroyed.展开更多
1.A spoiled boy destroyed a toy for joy.一个被宠坏的男孩损坏玩具只为了寻开心。2.Mrs Shelling’s selling six sick six-shilling sheep.史奈林太太在卖六只六先令一只的病绵羊。3.Joe and I don’t know why Joan showed a yello...1.A spoiled boy destroyed a toy for joy.一个被宠坏的男孩损坏玩具只为了寻开心。2.Mrs Shelling’s selling six sick six-shilling sheep.史奈林太太在卖六只六先令一只的病绵羊。3.Joe and I don’t know why Joan showed a yellow coat to the goatin the snow.展开更多
1 About 10 years ago,Lawson was at a beach in Vir⁃ginia watching his kids build sandcastles right next to the waves.2“I kept trying to get them to come back because I thought it was a terrible idea,”he said.He wante...1 About 10 years ago,Lawson was at a beach in Vir⁃ginia watching his kids build sandcastles right next to the waves.2“I kept trying to get them to come back because I thought it was a terrible idea,”he said.He wanted them to build their sandcastles closer to the dunes(沙丘).But they found it more exciting to build right where the waves hit,seeing their sandcastles get destroyed.展开更多
Our city is making its effort to becomea civilized city.As citizens of Green City,we should not only protect our environment but also follow the traffic rules.To begin with,we must protect the environment.Without doin...Our city is making its effort to becomea civilized city.As citizens of Green City,we should not only protect our environment but also follow the traffic rules.To begin with,we must protect the environment.Without doing that,it’s out destiny that our human being will die out on the earth.And we won’t find a planet that we can live in since we have destroyed the environment.Now,we should try to protect it and make it become more and more beautiful.展开更多
Graphene is hailed as the“future material”and“revolutionary material”of the 21st century.It has broad application prospects in the field of emission materials,quantum computers and super-sensitive sensors.Because ...Graphene is hailed as the“future material”and“revolutionary material”of the 21st century.It has broad application prospects in the field of emission materials,quantum computers and super-sensitive sensors.Because of the short channel effect and manufacturing cost constraints,the mainstream silicon base material has become the bottleneck of semiconductor development.Graphene is expected to be an alternative material for silicon,becoming an important role in the development of electronic devices in the post-moore law period.However,in irradiation environments,graphene lattice could be destroyed,which may induce the failure of graphene devices.Then the application of graphene devices in radiation environment is greatly limited.展开更多
文摘Background: Destroyed lung is a lung condition commonly caused by tuberculosis. Other causes include bronchiectasis, aspergilloma, emphysema, etc. It is characterized by extensive lung destruction and reduced lung function. Chest X-ray, chest CT, bronchography, and ventilation-perfusion ratio scan are the commonest radiologic diagnostic tools. Treatment of choice may include pneumonectomy. The study aims to highlight the common causes of destroyed lung and the major presenting complaints based on age, sex and affected lungs. Method: Published cases from English medical journals were evaluated and analyzed. Results: 31 published cases on destroyed lung were reviewed. 58.1% showed that the left lung was the most commonly affected lung. The condition was more common in males (71%). Based on our review, the commonest causes are pneumonia and tuberculosis at 25.9% and 22.8%, respectively. Conclusion: Pneumonia and Tuberculosis seem to be the commonest causes of destroyed lung based on our review, with left sided affectation being more predominant.
文摘Lithium is becoming common in our everyday lives.It is the key ingredient in the batteries of our mobile phones and electric vehicles,but have you ever wondered where it comes from?A new study Ied by Prof.ZHAO Gang and Dr.Yerra Bharat Kumar from the National Astronomical Observatories of Chinese Academy of Sciences(NAOC)provides a fresh understanding of both how Lithium is made,and how it is destroyed.
文摘Among chronic pulmonary infections, pulmonary actinomycosis is a rare one, caused by a gram-positive microaerophilic bacterium called Actinomyces. Aside from cervicofacial or abdominopelvic actinomycosis, pulmonary involvement is rare, and sometimes this type of infection results in a misdiagnosis of pulmonary tuberculosis or carcinoma. Clinical presentation of pulmonary actinomycosis could be acute or subacute, with lobar involvement. However, the disease is most commonly diagnosed at the chronic phase, with patients presenting mild fever, weight loss, and occasional hemoptysis. Here, we described the case of a 30-year-old male patient, presented with a history of respiratory complaints for more than three years and was diagnosed clinically and radiologically as a case of a destroyed left lung. Later on, post-operative tissue diagnosis was confirmed—pulmonary actinomycosis.
文摘This paper looks into David Herbert Lawrence＇s characterization of Mrs. Morel in his famous novel Sons and Lovers （1962）. Mrs. Morel has long been regarded by feminist critics as the destroyed, a victim destroyed by the male-dominated society, and her son Paul has been viewed as a destroyer of women. Based on a close reading of the novel, this paper examines Lawrence＇s characterization of Mrs. Morel and reveals that Mrs Morel actually belongs to the destroyer instead of the destroyed through an analysis of her relationship with the three male characters in the novel, thus providing new insights into the understanding of this classic novel.
基金supported by the National Key Research and Development Program of China(2021YFF0703600)。
文摘Highlights The RT-RAA-VF assay developed for the NiV P gene can perform rapid detection of NiV within 20 min at 42℃ with high specificity.This assay is capable of attaining sensitivity to a single copy of NiV RNA transcripts.This assay effectively avoids false positives caused by aerosol contamination with a sealed disposable nucleic acid visualization test paper device.
基金Funded by the National Natural Science Foundation of China(No.51472191)the Wuhan City Chenguang Project(No.2014070404010208)+2 种基金the Natural Science Foundation of Hubei Province(Nos.2014CFB343 and 2014CFB859)the Doctoral Program of Higher Education(No.20130143110013)the Key Technology Innovation Project of Hubei Province(No.2013AAA017)
文摘The corrosion of ECR glass fiber was investigated by the analysis methods of weight loss ratio under different acids and at various durations.Weight loss,leaching of cations,and surface composition of ECR glass fiber were analyzed.The corrosion mechanism of ECR glass fiber in acid environment was also discussed.The experimental results showed that the corrosion degree of ECR glass fiber in different acids obeyed the order： HNO3〉H2SO4〉HCl.The acid effects on corrosion of ECR glass fiberis were totally different.Hydrochloric acid mainly destroyed the network structure of [AlO4],while sulfuric acid and nitric acid mainly destroyed the structure of [SiO4].The acid resistance of ECR glass fiber is much better than that of E glass fiber due to the generation of intermediate product silicic acid gel Si（OH）4 during ion exchange.It can adhere to the glass surface to form a thin film and hinder the proceeding of corrosion.
文摘Environmental crisis: serious greenhouse effect, destroyed ozonosphere, acid rain pollution, water resources cri-sis, land desertization, forest decrease, water and soil loss, species deracination, poisonous chemical pollution...... Dripping andleakage phenomena during chemical process, not only cause economic losses but also cause serious pollution accident and also could damage people's health. Develop green chemical industry and adopt green technology are the important ways to reduce pollution and to advance chemical sustainable development.
基金financially supported by the National Natural Science Foundation of China(Nos.51973134 and 51703139)the State Key Research Development Program of China(No.2020YFC1107000)+2 种基金Fund of Cooperation of Sichuan UniversityDazhou(No.2020CDDZ-14)Chengdu Scientific Program R&D Key Project(No.2019-YF05-00156-SN)the project of the Science and Technology Department in Sichuan Province(No.2020YJ0230)。
文摘Fluorinated diols(FDO)with dangling chain were introduced into polyether urethanes(PEUs)as chain extender in order to achieve internal plasticization.Based on temperature dependent Fourier transform infrared(FTIR)spectroscopy results,the fluorinated polyether urethanes(FPEUs)exhibited weaker hydrogen bonding between C=O and N―H groups with addition of FDO.The crystallinity of hard domain was destroyed determined by thermal analysis.Combined with the results of dynamic mechanical analysis(DMA)and dissipative particle dynamics(DPD)simulation,it was proved that more loosely aggregated hard domains with weakened interaction separated from soft segment were formed.Rheological analysis indicated that FDO reduced the complex viscosity and viscous flow activation energy which endowed the polymer with more flexibility.Despite the loss of hydrogen bonds,there was no significant decline in mechanical property resulting from the decrease of hard segment dissolved in soft segment phase.The presence of fluorinated carbon side chain could function as internal plasticizer and contribute to the processability of polyurethane.
基金Supported by the National Natural Science Foundation of China under Grant Nos.19874063 and 1992541&and the Chinese Academy of Sciences under Grant LWTZ-1289.
文摘By using the molecular dynamics simulation,we have studied the dynamic behaviors of small energetic clusters deposited on the surface.We find that,at incident energy as low as 1.0eV/atom,the structure of the cluster is destroyed and cluster atoms form an epitaxial layer above the surface.At high energy incidence,the site exchange between cluster atom and surface atom is observed.The effects of the cluster size and orientation are discussed.
文摘The United States and theSoviet Union announced agreementin principle on September 18 ona historic treaty wiping out allintermediate-range nuclear wea-pon which would be signed at asuperpower summit this year. The 42nd session of the UNGeneral Assembly began a 3-weekgeneral debate on September 21. The US naval forces in theGulf attacked and seized anIranian ship on September 21 toprevent it from laying mines.The ship was destroyed by the
文摘Xi’an, called Chan’an in the Tang Dynasty (618-907), was a famous open city then and a tourist attraction today. First built at the time of the Western Han (206 BC-8 AD), Chang’an was 70 kilometres from the present-day Xi’an. After Chang’an was destroyed by war, emperors of the Sui Dynasty built a new city Daxing between 582 and 681 on the site of the present-day Xi’ an and made it the capital of the state. When the
文摘If we survey the fall of Mesopotamian empires from the beginning of written sources to the end of the Neo-Babylonian Empire we find one astonishing similarity:the warlike people that finally destroyed these empires came from the East.A number of factors,not at least geography,might explain this,but here I want to focus on the effect the Mesopotamian empires had on the bordering regions themselves and discuss the possibility that the constitution of these organized political actors pushing back against the empire was a result of Mesopotamian imperial politics themselves determined by a poor evaluation of the empire’s ability to exercise direct control of areas where military actions took place.The aim of this paper is to build on earlier work and investigate the fall of the empires of Akkad and Ur III under a systemic perspective,in order to understand which factors might have caused the decline and fall of these empires that were not merely accidental.Many reasons have been suggested for the fall of Mesopotamian empires,like climatic change(Kinnier-Wilson 2005),salinization of the soil(Powell 1985),or the arrival of new peoples.Here,I want to focus on the question of whether this“arrival of new people”may be better described as the establishment of opposing political forces.They are often described as coming out of nowhere,but I would like to suggest that this was the result of an ethnogenesis or secondary state formation at the border of the empire.
文摘Introduction In the First Dynasty Saqqara Mastaba 3505,Walter Emery found a group of seal-impressions1 in the fill of the staircase and in the nearby east corridor.He classified these seal-impressions and stated that they were the first type(domeshaped and composed of grey-black clay).2 One of the seal impressions of this type had a surface of yellowish colored clay.These seal impressions are preserved because they were inadvertently burnt when the tombs were destroyed.
文摘1.A spoiled boy destroyed a toy for joy.一个被宠坏的男孩损坏玩具只为了寻开心。2.Mrs Shelling’s selling six sick six-shilling sheep.史奈林太太在卖六只六先令一只的病绵羊。3.Joe and I don’t know why Joan showed a yellow coat to the goatin the snow.
文摘1 About 10 years ago,Lawson was at a beach in Vir⁃ginia watching his kids build sandcastles right next to the waves.2“I kept trying to get them to come back because I thought it was a terrible idea,”he said.He wanted them to build their sandcastles closer to the dunes(沙丘).But they found it more exciting to build right where the waves hit,seeing their sandcastles get destroyed.
文摘Our city is making its effort to becomea civilized city.As citizens of Green City,we should not only protect our environment but also follow the traffic rules.To begin with,we must protect the environment.Without doing that,it’s out destiny that our human being will die out on the earth.And we won’t find a planet that we can live in since we have destroyed the environment.Now,we should try to protect it and make it become more and more beautiful.
基金National Natural Science Foundation of China(11505243)。
文摘Graphene is hailed as the“future material”and“revolutionary material”of the 21st century.It has broad application prospects in the field of emission materials,quantum computers and super-sensitive sensors.Because of the short channel effect and manufacturing cost constraints,the mainstream silicon base material has become the bottleneck of semiconductor development.Graphene is expected to be an alternative material for silicon,becoming an important role in the development of electronic devices in the post-moore law period.However,in irradiation environments,graphene lattice could be destroyed,which may induce the failure of graphene devices.Then the application of graphene devices in radiation environment is greatly limited.
