Objective:To explore the application effect of emergency rescue capability intervention among students in a university in Beijing.Methods:A total of 900 students from a university in Beijing in 2023 were selected as t...Objective:To explore the application effect of emergency rescue capability intervention among students in a university in Beijing.Methods:A total of 900 students from a university in Beijing in 2023 were selected as the research objects.Emergency rescue capability training was conducted from March 2023 to June 2023,once a month.The students’mastery of emergency rescue before and after the intervention was analyzed.Survey questionnaires were distributed to all college students to understand their channels and willingness to acquire emergency rescue knowledge.Results:A total of 886 valid questionnaires were collected in this study.The highest proportion of knowledge about China’s general emergency telephone number and how to dial the emergency rescue hotline was 100.00%.Among the strategies for dealing with cardiac arrest in CPR,the highest proportion was 336.34%.Among the four major first aid techniques of hemostasis,bandaging,fixation,transportation,the highest proportion of knowledge about the use of rubber band signs was 31.71%.Among the first aid techniques for heatstroke,poisoning,fire,and sharp instrument injuries,the principle of emergency treatment for severe gas poisoning had the highest proportion of 41.42%,showing significant differences.College students mainly acquire knowledge of emergency rescue capability through TV programs,health education lectures,and the internet.Around 61.40%of college students hope to learn more about prevention and control knowledge.Conclusion:After the intervention of emergency rescue capability,the emergency rescue capability of college students in this university has been significantly improved,showing a strong training effect,which is worthy of promotion.展开更多
The existing research on rescue robots has focused mainly on reconnaissance,detection,and firefighting,and a small number of robots that can achieve human rescue have problems such as poor safety and stability and ins...The existing research on rescue robots has focused mainly on reconnaissance,detection,and firefighting,and a small number of robots that can achieve human rescue have problems such as poor safety and stability and insufficient carrying capacity.This article addresses the above issues and cleverly combines the advantages of soft robotic arms,underactuated robotic arms,and suction cups based on the principles of bionics.A new design for a robotic arm was proposed,and its working principle was explained.Then,the human rescue process was divided into two stages,and the grasping force of the robotic arm in each stage was analyzed separately.Finally,a prototype of the principle was developed,and the feasibility of the design principle of the robotic arm was verified through grasping experiments on a cross-sectional contour model of the human chest.At the same time,grasping experiments were conducted on different objects to demonstrate the potential application of the robotic arm in grasping ground objects.This research proposes a stress envelope adsorption rescue robot arm inspired by the adhesion ability of the Drosera plant and the stress envelope effect,which can apply force to the entire surface of the human body,reduce local force on the human body,ensure load-bearing capacity and adaptability,and improve the safety and stability of rescue grasping.展开更多
More than eighty years ago,when the Nazis brutally persecuted and mass-murdered the Jews,and nearly every country in the world shut its door to them desperately seeking refuge,the Chinese people,especially those of th...More than eighty years ago,when the Nazis brutally persecuted and mass-murdered the Jews,and nearly every country in the world shut its door to them desperately seeking refuge,the Chinese people,especially those of the city of Shanghai,opened their arms to the European Jews at this critical moment.展开更多
Researchers have discovered that mice instinctively exhibit rescue-like behavior towards anesthetized companions-a finding that suggests a biological basis for prosociality.The study,published in PNAS on April 23,2025...Researchers have discovered that mice instinctively exhibit rescue-like behavior towards anesthetized companions-a finding that suggests a biological basis for prosociality.The study,published in PNAS on April 23,2025,was led by Dr.HU Li from the Institute of Psychology of the Chinese Academy of Sciences(IPCAS)and Dr.CHEN Zhoufeng from Washington University School of Medicine and the Shenzhen Medical Academy of Research and Translation.展开更多
Construction failures caused by unforeseen circumstances, such as natural disasters, environmental degradation, and structural weaknesses, present significant challenges in achieving durability, safety, and sustainabi...Construction failures caused by unforeseen circumstances, such as natural disasters, environmental degradation, and structural weaknesses, present significant challenges in achieving durability, safety, and sustainability. This research addresses these challenges through the development of advanced emergency rescue systems incorporating wood-derived nanomaterials and IoT-enabled Structural Health Monitoring (SHM) technologies. The use of nanocellulose which demonstrates outstanding mechanical capabilities and biodegradability alongside high resilience allowed developers to design modular rescue systems that function effectively even under challenging conditions while providing real-time failure protection. Experimental data from testing showed that the replacement system strengthened load-bearing limits by 20% while enhancing impact tolerance by 30% and decreasing lifecycle carbon footprints by 60% against conventional methods. FEA results alongside dynamic simulations established that the system maintains its strength across seismic events and thermal variations and environmental conditions. SHM systems that leverage the Internet of Things Platform revealed 95% accuracy rates in detecting anomalies while improving response speed by 30% for predictive maintenance operations. The innovative solutions support the special issue’s direction to push structural transformation through durable designs and creative materials with preventive failure solutions. The proposed solutions work together toward creating resilient infrastructure systems which resist unexpected stressors and environmental damage.展开更多
Unlike other major crops,little research has been performed on tomato to reduce the generation time for speed breeding.We evaluated several agronomic treatments to reduce the generation time of tomato in the‘M82'...Unlike other major crops,little research has been performed on tomato to reduce the generation time for speed breeding.We evaluated several agronomic treatments to reduce the generation time of tomato in the‘M82'(determinate)and‘Moneymaker'(indeterminate)varieties and evaluated the best combination in conjunction with embryo rescue.Five container sizes with volumes of 0.2 L(XS),0.45 L(S),0.8 L(M),1.3 L(L),and6 L(XL),were evaluated in the first experiment under the autumn cycle.We found that plants grown in XL containers exhibited better development and required less time from sowing to anthesis(DSA)and from anthesis to fruit ripening(DAR).In the second experiment,using XL containers in the autumn-winter cycle,we evaluated the effects of cold priming at the cotyledonary stage,water stress,P supplementation,and K supplementation on generation time.Compared to the control,we found that cold priming significantly reduced the number of leaves,plant height to first the inflorescence,and DSA(2.7 d),whereas K supplementation reduced the DAR(8.8 d).In contrast,water stress and P supplementation did not significantly affect any of the measured traits like DAR,DSA or fruit set.To validate these data,in a third experiment with XL containers in the spring-summer cycle,the combination of cold priming and K supplementation was tested,confirming the significant effect of this combination on the reduction of generation time(2.9 d for DSA and 3.9 d for DAR)compared to the control.Embryo rescue during the cell expansion cycle(average of 22.0 d and 23.3 d after anthesis for‘M82'and‘Moneymaker',respectively)allowed the shortening of the generation time by 8.7 d in‘M82'and 11.6 d in‘Moneymaker'compared to the in planta fruit ripening.The combination of agronomic treatments with embryo rescue can effectively increase the number of generations per year from three to four for speed breeding of tomato.展开更多
Climate change exacerbates tourism emergencies, making it increasingly critical to enhance mitigation and adaptation capacity to alleviate extreme climate's impacts during tourism. Climate-induced impacts and thre...Climate change exacerbates tourism emergencies, making it increasingly critical to enhance mitigation and adaptation capacity to alleviate extreme climate's impacts during tourism. Climate-induced impacts and threats in mountainous tourism areas are more challenging given complex terrains and multiple risk sources. Prior studies have focused on assessing climate-related impacts in mountainous tourism areas, while limited studies have investigated the emergency rescue capacity of mountainous tourism areas. This largely constrains decision makers to adopt proper solutions to enhance emergency rescue capacity. To address this research challenges, this study aims to assess emergency rescue capability through an empirical study of the Wulong Karst Tourism Destination(WKTD) area in Chongqing, China. In particular, based on road network and emergency response facility data, the accessibility of road network was delineated by the Spatial Design Network Analysis(s DNA) model. The results indicate that fire and medical rescue facilities were extremely limited and their service coverage was irregular. Valleys significantly narrowed rescue facilities' service area and weakened their functional connection. With the vital 60-minute timeframe, the closeness and betweenness analyses revealed the low accessibility of global rescue roads, while relatively high accessibility of small-scale vehicle and pedestrian rescue roads. The Mean Crow Flight(MCF) and Diversion Ratio(DR) analyses verified that the accessibility of road rescue services was impeded by mountainous terrain. Overall, this study informs solutions pertaining to rescue and disaster mitigation in mountainous tourism areas.展开更多
Dear Editor,This letter is concerned with a coordinated path following control method for multiple unmanned underwater vehicles(UUVs)to carry out maritime search and rescue(MSR)missions.The kinetic model parameters of...Dear Editor,This letter is concerned with a coordinated path following control method for multiple unmanned underwater vehicles(UUVs)to carry out maritime search and rescue(MSR)missions.The kinetic model parameters of each UUV is totally unknown.Firstly,a kinematic control law is constructed by designing a vertical line-of-sight(LOS)guidance scheme.展开更多
In recent years,with the increasing frequency of global Marine activities,the occurrence probability of Marine accidents and emergencies has also increased.As a new technical means,small unmanned aerial vehicles(UAVs)...In recent years,with the increasing frequency of global Marine activities,the occurrence probability of Marine accidents and emergencies has also increased.As a new technical means,small unmanned aerial vehicles(UAVs)have shown great application potential in Marine search and rescue activities.In Marine search and rescue activities,small UAVs can quickly arrive at the scene of the accident and carry out efficient information collection and monitoring under its simple and flexible operation.Compared with traditional search and rescue methods,small UAVs can cover a wider area,provide more detailed and accurate on-site information,provide strong support for search and rescue decision-making,and thus improve the quality and efficiency of maritime rescue.In this regard,this paper first describes the application advantages of small UAVs in Marine search and rescue activities and then puts forward effective application paths,to provide some references for relevant researchers.展开更多
By introdming a small-caliber deep well rescue robot, a hold-hug pattern rescue mechanism was brought forward. In order to reduce the volmne, the trader-well rescue imclmnism is modularizing designed. At the same tira...By introdming a small-caliber deep well rescue robot, a hold-hug pattern rescue mechanism was brought forward. In order to reduce the volmne, the trader-well rescue imclmnism is modularizing designed. At the same tirae, the audio and video systyems, the illumination system and the ventilation system are expatiated. The rescuing robot can rescue the falling person in the deep well, it can save much manateral resources and time. It＇s really an ideal rescue device for the small-caliber fall.展开更多
In order to solve the problems of potential incident rescue on expressway networks, the opportunity cost-based method is used to establish a resource dispatch decision model. The model aims to dispatch the rescue reso...In order to solve the problems of potential incident rescue on expressway networks, the opportunity cost-based method is used to establish a resource dispatch decision model. The model aims to dispatch the rescue resources from the regional road networks and to obtain the location of the rescue depots and the numbers of service vehicles assigned for the potential incidents. Due to the computational complexity of the decision model, a scene decomposition algorithm is proposed. The algorithm decomposes the dispatch problem from various kinds of resources to a single resource, and determines the original scene of rescue resources based on the rescue requirements and the resource matrix. Finally, a convenient optimal dispatch scheme is obtained by decomposing each original scene and simplifying the objective function. To illustrate the application of the decision model and the algorithm, a case of the expressway network is studied on areas around Nanjing city in China and the results show that the model used and the algorithm proposed are appropriate.展开更多
In view of the pressure time of emergency rescue against the infectious diseases,a mathematical model to optimize the location of emergency rescue centers is proposed.The model takes full account of the spread functio...In view of the pressure time of emergency rescue against the infectious diseases,a mathematical model to optimize the location of emergency rescue centers is proposed.The model takes full account of the spread function of infectious diseases,the cycle of pulse vaccination,the distance between the demand area and the emergency rescue centers,as well as the building and maintenance cost for the emergency rescue center,and so on.At the same time,the model integrates the traditional location selection models which are the biggest cover model,the p-center model and the p-median model,and it embodies the principles of fairness and efficiency for the emergency center location.Finally,a computation of an example arising from practice provides satisfactory results.展开更多
An optimal resource dispatching method is proposed to solve the multiple-response problem under the conditions of potential incidents on freeway networks.Travel time of the response vehicle is selected instead of rout...An optimal resource dispatching method is proposed to solve the multiple-response problem under the conditions of potential incidents on freeway networks.Travel time of the response vehicle is selected instead of route distance as the weight to reflect the impact of traffic conditions on the decisions of rescue resources.According to the characteristics of different types of rescue vehicles the dispatching decision-making time is revised to show the heterogeneity among different rescue vehicle dispatching modes. The genetic algorithm is used to obtain the solutions to the rescue resources dispatching model. A case study shows that the proposed method can accurately reveal the impact of potential incidents on the costs of rescues according to the variations in the types and quantities of rescue resources and the optimal dispatching plan with respect to potential incidents can be obtained.The proposed method is applicable in real world scenarios.展开更多
Background The occurrence factors of emergency chest pain are relatively complex,and the progression of the condition is fast.Within a short period of time,the condition can worsen significantly,resulting in a higher ...Background The occurrence factors of emergency chest pain are relatively complex,and the progression of the condition is fast.Within a short period of time,the condition can worsen significantly,resulting in a higher mortality rate.Therefore,conducting proactive and effective emergency rescue work within a short period of time can significantly improve the success rate of patient resuscitation.Therefore,this study will focus on exploring the research on optimizing the emergency nursing process for the rescue effectiveness of emergency chest pain patients.Methods 82 patients with emergency chest pain admitted to our hospital from January 2022 to January 2023 were selected as the subjects of this study.They were evenly divided into observation group and control group by random number table method,with 41 cases in each group.The control group was given routine nursing,and the observation group was given optimized emergency nursing process.The rescue effect,rescue efficiency,adverse events and nursing quality of the two groups were compared.Results The success rate of rescue was 100.00%in the observation group and 90.24%in the control group,which was significantly higher than that of the control group(P<0.05).The duration of rescue,emergency stay time and hospitalization time in the observation group was lower than that in the control group(P<0.05).The proportion of patients with shock,arrhythmia and heart failure was 0.00%in the observation group,which was lower than the 9.76%in the control group(P<0.05),and the nursing quality scores of emergency order and basic nursing in the observation group were higher than those in the control group(P<0.05).Conclusionss Optimized emergency nursing process can improve the rescue success rate of patients with chest pain in the emergency department,improve the rescue work efficiency,speed up the treatment of patients,and significantly reduce adverse events,which is worthy of popularization and application.展开更多
Compared with ground first aid, aviation medical rescue has better advantages in mountain disaster relief, remote transfer and rapid medical rescue response, which is an effective supplement to ground medical first ai...Compared with ground first aid, aviation medical rescue has better advantages in mountain disaster relief, remote transfer and rapid medical rescue response, which is an effective supplement to ground medical first aid. China’s aviation medical rescue is in its infancy, compared with the level of developed countries there is a big gap. Based on the development and characteristics of aviation medical rescue in China, this paper combs the process of air-ground cooperative rescue, analyzes the demand and current situation of air-ground cooperative rescue in aviation medical rescue in China, and puts forward some countermeasures to improve the ability of aviation medical rescue in China.展开更多
Objective:To analyze the value of emergency rescue nursing intervention in the care of patients with traumatic hemorrhagic shock and its impact on the success rate of rescue efforts.Methods:A total of 80 patients with...Objective:To analyze the value of emergency rescue nursing intervention in the care of patients with traumatic hemorrhagic shock and its impact on the success rate of rescue efforts.Methods:A total of 80 patients with traumatic hemorrhagic shock were selected as samples,with the timeframe from July 2022 to July 2023.The patients were randomly divided into two groups using a random number table method.Group A received emergency rescue nursing,while Group B received routine nursing care.The success rate of rescue,rescue indicators,complication rates,and family satisfaction with nursing care were compared between the two groups.Results:The rescue success rate in Group A was higher than in Group B(P<0.05);the total blood loss in Group A was less,and the rescue time,full transportation time,and hospitalization time were shorter than in Group B(P<0.05);the complication rate of patients with traumatic hemorrhagic shock in Group A was lower than in Group B(P<0.05);the family satisfaction with emergency nursing care in Group A was higher than in Group B(P<0.05).Conclusion:Emergency rescue interventions for patients with traumatic hemorrhagic shock can reduce blood loss,shorten rescue times,and improve the success rate of shock rescue,providing a safe and effective approach.展开更多
H pylori gastric infection is one of the most prevalent infectious diseases worldwide. The discovery that most upper gastrointestinal diseases are related to Hpylori infection and therefore can be treated with antibio...H pylori gastric infection is one of the most prevalent infectious diseases worldwide. The discovery that most upper gastrointestinal diseases are related to Hpylori infection and therefore can be treated with antibiotics is an important medical advance. Currently, a first-line triple therapy based on proton pump inhibitor （PPI） or ranitidine bismuth citrate （RBC） plus two antibiotics （darithromycin and amoxicillin or nitroimidazole） is recommended by all consensus conferences and guidelines. Even with the correct use of this drug combination, infection can not be eradicated in up to 23% of patients. Therefore, several second line therapies have been recommended. A 7 d quadruple therapy based on PPI, bismuth, tetracycline and metronidazole is the more frequently accepted. However, with second-line therapy, bacterial eradication may fail in up to 40% of cases. When Hpylori eradication is striclly indicated the choice of further treatment is controversial. Currently, a standard third-line therapy is lacking and various protocols have been proposed. Even after two consecutive failures, the most recent literature data have demonsbated that Hpylori eradication can be achieved in almost all patients, even when antibiotic susceptibility is not tested. Different possibilities of empirical treatment exist and the available third-line strategies are herein reviewed.展开更多
AIM： To compare the efficacy and side effect profiles of three furazolidone and amoxicillin-based quadruple rescue therapies for the eradication of Helicobacter pylori （H pylonS. METHODS： Patients who failed in the...AIM： To compare the efficacy and side effect profiles of three furazolidone and amoxicillin-based quadruple rescue therapies for the eradication of Helicobacter pylori （H pylonS. METHODS： Patients who failed in the Hpylori eradication therapy for at least one course were randomly allocated into three groups. Group A received rebaprazole 10 mg＋ amoxicillin 1 g ＋ furazolidone 100 mg, and bismuth subcitrate 220 mg, twice daily for 1 wk; group B received the same regimen of group A but for 2 wk; and group C received the same regimen of group B, but furazolidone was replaced by furazolidone 100 mg three times daily. To record the side effect profiles at the end of the treatment, Hpylori eradication was assessed with 13C-urea breath test 4 wk after therapy. RESULTS： Sixty patients were enrolled including 28 males, and 20 patients in each group. The average age of the patients was 49.2 years, ranging from 18 to 84 years. H pylori eradication rates with per-protocol analysis were 82%, 89% and 90% in the three groups, respectively. Side effects were found in 11 patients, including mild dizziness, nausea, diarrhea and increased bowel movement. None of the 11 patients needed treatment for their side effects. CONCLUSION： One- or two-week furazolidone and amoxicillin-based quadruple rescue therapy with a low dose furazolidone （100 mg bid） for the eradication of Hpylori is effective. Extending the antibiotic course to 14 d could improve the eradication rates.展开更多
文摘Objective:To explore the application effect of emergency rescue capability intervention among students in a university in Beijing.Methods:A total of 900 students from a university in Beijing in 2023 were selected as the research objects.Emergency rescue capability training was conducted from March 2023 to June 2023,once a month.The students’mastery of emergency rescue before and after the intervention was analyzed.Survey questionnaires were distributed to all college students to understand their channels and willingness to acquire emergency rescue knowledge.Results:A total of 886 valid questionnaires were collected in this study.The highest proportion of knowledge about China’s general emergency telephone number and how to dial the emergency rescue hotline was 100.00%.Among the strategies for dealing with cardiac arrest in CPR,the highest proportion was 336.34%.Among the four major first aid techniques of hemostasis,bandaging,fixation,transportation,the highest proportion of knowledge about the use of rubber band signs was 31.71%.Among the first aid techniques for heatstroke,poisoning,fire,and sharp instrument injuries,the principle of emergency treatment for severe gas poisoning had the highest proportion of 41.42%,showing significant differences.College students mainly acquire knowledge of emergency rescue capability through TV programs,health education lectures,and the internet.Around 61.40%of college students hope to learn more about prevention and control knowledge.Conclusion:After the intervention of emergency rescue capability,the emergency rescue capability of college students in this university has been significantly improved,showing a strong training effect,which is worthy of promotion.
基金Supported by National Natural Science Foundation of China(Grant No.52475032)Central Government Guides Local Science and Technology Development Fund Projects(Grant No.246Z2001G)Hebei Provincial Natural Science Foundation Key Projects(Grant No.E2021203125).
文摘The existing research on rescue robots has focused mainly on reconnaissance,detection,and firefighting,and a small number of robots that can achieve human rescue have problems such as poor safety and stability and insufficient carrying capacity.This article addresses the above issues and cleverly combines the advantages of soft robotic arms,underactuated robotic arms,and suction cups based on the principles of bionics.A new design for a robotic arm was proposed,and its working principle was explained.Then,the human rescue process was divided into two stages,and the grasping force of the robotic arm in each stage was analyzed separately.Finally,a prototype of the principle was developed,and the feasibility of the design principle of the robotic arm was verified through grasping experiments on a cross-sectional contour model of the human chest.At the same time,grasping experiments were conducted on different objects to demonstrate the potential application of the robotic arm in grasping ground objects.This research proposes a stress envelope adsorption rescue robot arm inspired by the adhesion ability of the Drosera plant and the stress envelope effect,which can apply force to the entire surface of the human body,reduce local force on the human body,ensure load-bearing capacity and adaptability,and improve the safety and stability of rescue grasping.
文摘More than eighty years ago,when the Nazis brutally persecuted and mass-murdered the Jews,and nearly every country in the world shut its door to them desperately seeking refuge,the Chinese people,especially those of the city of Shanghai,opened their arms to the European Jews at this critical moment.
文摘Researchers have discovered that mice instinctively exhibit rescue-like behavior towards anesthetized companions-a finding that suggests a biological basis for prosociality.The study,published in PNAS on April 23,2025,was led by Dr.HU Li from the Institute of Psychology of the Chinese Academy of Sciences(IPCAS)and Dr.CHEN Zhoufeng from Washington University School of Medicine and the Shenzhen Medical Academy of Research and Translation.
文摘Construction failures caused by unforeseen circumstances, such as natural disasters, environmental degradation, and structural weaknesses, present significant challenges in achieving durability, safety, and sustainability. This research addresses these challenges through the development of advanced emergency rescue systems incorporating wood-derived nanomaterials and IoT-enabled Structural Health Monitoring (SHM) technologies. The use of nanocellulose which demonstrates outstanding mechanical capabilities and biodegradability alongside high resilience allowed developers to design modular rescue systems that function effectively even under challenging conditions while providing real-time failure protection. Experimental data from testing showed that the replacement system strengthened load-bearing limits by 20% while enhancing impact tolerance by 30% and decreasing lifecycle carbon footprints by 60% against conventional methods. FEA results alongside dynamic simulations established that the system maintains its strength across seismic events and thermal variations and environmental conditions. SHM systems that leverage the Internet of Things Platform revealed 95% accuracy rates in detecting anomalies while improving response speed by 30% for predictive maintenance operations. The innovative solutions support the special issue’s direction to push structural transformation through durable designs and creative materials with preventive failure solutions. The proposed solutions work together toward creating resilient infrastructure systems which resist unexpected stressors and environmental damage.
基金funded by the European Commission H2020 Research and Innovation Programme through the HARNESSTOM innovation action(Grant No.101000716)Grant CIPROM/2021/020(project SOLECO)funded by Conselleria d’Innovació,Universitats,Ciència i Societat Digital(Generalitat Valenciana,Spain)Pietro Gramazio received a post-doctoral fellowship(Grant No.RYC2021-031999-I)funded by MCIN/AEI/10.13039/501100011033 and by“European Union NextGenerationEU/PRTR”。
文摘Unlike other major crops,little research has been performed on tomato to reduce the generation time for speed breeding.We evaluated several agronomic treatments to reduce the generation time of tomato in the‘M82'(determinate)and‘Moneymaker'(indeterminate)varieties and evaluated the best combination in conjunction with embryo rescue.Five container sizes with volumes of 0.2 L(XS),0.45 L(S),0.8 L(M),1.3 L(L),and6 L(XL),were evaluated in the first experiment under the autumn cycle.We found that plants grown in XL containers exhibited better development and required less time from sowing to anthesis(DSA)and from anthesis to fruit ripening(DAR).In the second experiment,using XL containers in the autumn-winter cycle,we evaluated the effects of cold priming at the cotyledonary stage,water stress,P supplementation,and K supplementation on generation time.Compared to the control,we found that cold priming significantly reduced the number of leaves,plant height to first the inflorescence,and DSA(2.7 d),whereas K supplementation reduced the DAR(8.8 d).In contrast,water stress and P supplementation did not significantly affect any of the measured traits like DAR,DSA or fruit set.To validate these data,in a third experiment with XL containers in the spring-summer cycle,the combination of cold priming and K supplementation was tested,confirming the significant effect of this combination on the reduction of generation time(2.9 d for DSA and 3.9 d for DAR)compared to the control.Embryo rescue during the cell expansion cycle(average of 22.0 d and 23.3 d after anthesis for‘M82'and‘Moneymaker',respectively)allowed the shortening of the generation time by 8.7 d in‘M82'and 11.6 d in‘Moneymaker'compared to the in planta fruit ripening.The combination of agronomic treatments with embryo rescue can effectively increase the number of generations per year from three to four for speed breeding of tomato.
基金supported by the State Key Laboratory of Subtropical Building and Urban Science (No.2024KA03)Southwest University Graduate Research Innovation Project (Grant No.SWUB23043)+1 种基金the China Meteorological Administration “Research on value realization of climate ecological products” Youth Innovation Team Project (No.CMA2024QN15)Chongqing Natural Science(No.CSTB2024NSCQ-MSX0670)。
文摘Climate change exacerbates tourism emergencies, making it increasingly critical to enhance mitigation and adaptation capacity to alleviate extreme climate's impacts during tourism. Climate-induced impacts and threats in mountainous tourism areas are more challenging given complex terrains and multiple risk sources. Prior studies have focused on assessing climate-related impacts in mountainous tourism areas, while limited studies have investigated the emergency rescue capacity of mountainous tourism areas. This largely constrains decision makers to adopt proper solutions to enhance emergency rescue capacity. To address this research challenges, this study aims to assess emergency rescue capability through an empirical study of the Wulong Karst Tourism Destination(WKTD) area in Chongqing, China. In particular, based on road network and emergency response facility data, the accessibility of road network was delineated by the Spatial Design Network Analysis(s DNA) model. The results indicate that fire and medical rescue facilities were extremely limited and their service coverage was irregular. Valleys significantly narrowed rescue facilities' service area and weakened their functional connection. With the vital 60-minute timeframe, the closeness and betweenness analyses revealed the low accessibility of global rescue roads, while relatively high accessibility of small-scale vehicle and pedestrian rescue roads. The Mean Crow Flight(MCF) and Diversion Ratio(DR) analyses verified that the accessibility of road rescue services was impeded by mountainous terrain. Overall, this study informs solutions pertaining to rescue and disaster mitigation in mountainous tourism areas.
基金supported by the National Science and Technology Major Project(2022ZD0119902)the Doctoral Scientific Research Foundation of Liaoning Province(2023-BS-077)+2 种基金the Postdoctoral Research Foundation of China(2024M751980)the Open Project of State Key Laboratory of Maritime Technology and Safety(SKLMTA-DMU2024Y3)Bolian Research Funds of Dalian Maritime University/Fundamental Research Funds for the Central Universities(3132023616).
文摘Dear Editor,This letter is concerned with a coordinated path following control method for multiple unmanned underwater vehicles(UUVs)to carry out maritime search and rescue(MSR)missions.The kinetic model parameters of each UUV is totally unknown.Firstly,a kinematic control law is constructed by designing a vertical line-of-sight(LOS)guidance scheme.
文摘In recent years,with the increasing frequency of global Marine activities,the occurrence probability of Marine accidents and emergencies has also increased.As a new technical means,small unmanned aerial vehicles(UAVs)have shown great application potential in Marine search and rescue activities.In Marine search and rescue activities,small UAVs can quickly arrive at the scene of the accident and carry out efficient information collection and monitoring under its simple and flexible operation.Compared with traditional search and rescue methods,small UAVs can cover a wider area,provide more detailed and accurate on-site information,provide strong support for search and rescue decision-making,and thus improve the quality and efficiency of maritime rescue.In this regard,this paper first describes the application advantages of small UAVs in Marine search and rescue activities and then puts forward effective application paths,to provide some references for relevant researchers.
基金supported by the Graduate Science and Technology Innovation Fund(YCB100150)
文摘By introdming a small-caliber deep well rescue robot, a hold-hug pattern rescue mechanism was brought forward. In order to reduce the volmne, the trader-well rescue imclmnism is modularizing designed. At the same tirae, the audio and video systyems, the illumination system and the ventilation system are expatiated. The rescuing robot can rescue the falling person in the deep well, it can save much manateral resources and time. It＇s really an ideal rescue device for the small-caliber fall.
基金The National Natural Science Foundation of China (No.50422283)the Science and Technology Key Plan Project of Henan Province (No.072102360060)
文摘In order to solve the problems of potential incident rescue on expressway networks, the opportunity cost-based method is used to establish a resource dispatch decision model. The model aims to dispatch the rescue resources from the regional road networks and to obtain the location of the rescue depots and the numbers of service vehicles assigned for the potential incidents. Due to the computational complexity of the decision model, a scene decomposition algorithm is proposed. The algorithm decomposes the dispatch problem from various kinds of resources to a single resource, and determines the original scene of rescue resources based on the rescue requirements and the resource matrix. Finally, a convenient optimal dispatch scheme is obtained by decomposing each original scene and simplifying the objective function. To illustrate the application of the decision model and the algorithm, a case of the expressway network is studied on areas around Nanjing city in China and the results show that the model used and the algorithm proposed are appropriate.
基金The National Natural Science Foundation of China(No.70671021)the National Key Technology R&D Program of China during the 11th Five-Year Plan Period(No.2006BAH02A06)
文摘In view of the pressure time of emergency rescue against the infectious diseases,a mathematical model to optimize the location of emergency rescue centers is proposed.The model takes full account of the spread function of infectious diseases,the cycle of pulse vaccination,the distance between the demand area and the emergency rescue centers,as well as the building and maintenance cost for the emergency rescue center,and so on.At the same time,the model integrates the traditional location selection models which are the biggest cover model,the p-center model and the p-median model,and it embodies the principles of fairness and efficiency for the emergency center location.Finally,a computation of an example arising from practice provides satisfactory results.
基金The National Natural Science Foundation of China(No.71101025)the Science and Technology Key Plan Project of Changzhou(No.CE20125001)
文摘An optimal resource dispatching method is proposed to solve the multiple-response problem under the conditions of potential incidents on freeway networks.Travel time of the response vehicle is selected instead of route distance as the weight to reflect the impact of traffic conditions on the decisions of rescue resources.According to the characteristics of different types of rescue vehicles the dispatching decision-making time is revised to show the heterogeneity among different rescue vehicle dispatching modes. The genetic algorithm is used to obtain the solutions to the rescue resources dispatching model. A case study shows that the proposed method can accurately reveal the impact of potential incidents on the costs of rescues according to the variations in the types and quantities of rescue resources and the optimal dispatching plan with respect to potential incidents can be obtained.The proposed method is applicable in real world scenarios.
文摘Background The occurrence factors of emergency chest pain are relatively complex,and the progression of the condition is fast.Within a short period of time,the condition can worsen significantly,resulting in a higher mortality rate.Therefore,conducting proactive and effective emergency rescue work within a short period of time can significantly improve the success rate of patient resuscitation.Therefore,this study will focus on exploring the research on optimizing the emergency nursing process for the rescue effectiveness of emergency chest pain patients.Methods 82 patients with emergency chest pain admitted to our hospital from January 2022 to January 2023 were selected as the subjects of this study.They were evenly divided into observation group and control group by random number table method,with 41 cases in each group.The control group was given routine nursing,and the observation group was given optimized emergency nursing process.The rescue effect,rescue efficiency,adverse events and nursing quality of the two groups were compared.Results The success rate of rescue was 100.00%in the observation group and 90.24%in the control group,which was significantly higher than that of the control group(P<0.05).The duration of rescue,emergency stay time and hospitalization time in the observation group was lower than that in the control group(P<0.05).The proportion of patients with shock,arrhythmia and heart failure was 0.00%in the observation group,which was lower than the 9.76%in the control group(P<0.05),and the nursing quality scores of emergency order and basic nursing in the observation group were higher than those in the control group(P<0.05).Conclusionss Optimized emergency nursing process can improve the rescue success rate of patients with chest pain in the emergency department,improve the rescue work efficiency,speed up the treatment of patients,and significantly reduce adverse events,which is worthy of popularization and application.
文摘Compared with ground first aid, aviation medical rescue has better advantages in mountain disaster relief, remote transfer and rapid medical rescue response, which is an effective supplement to ground medical first aid. China’s aviation medical rescue is in its infancy, compared with the level of developed countries there is a big gap. Based on the development and characteristics of aviation medical rescue in China, this paper combs the process of air-ground cooperative rescue, analyzes the demand and current situation of air-ground cooperative rescue in aviation medical rescue in China, and puts forward some countermeasures to improve the ability of aviation medical rescue in China.
文摘Objective:To analyze the value of emergency rescue nursing intervention in the care of patients with traumatic hemorrhagic shock and its impact on the success rate of rescue efforts.Methods:A total of 80 patients with traumatic hemorrhagic shock were selected as samples,with the timeframe from July 2022 to July 2023.The patients were randomly divided into two groups using a random number table method.Group A received emergency rescue nursing,while Group B received routine nursing care.The success rate of rescue,rescue indicators,complication rates,and family satisfaction with nursing care were compared between the two groups.Results:The rescue success rate in Group A was higher than in Group B(P<0.05);the total blood loss in Group A was less,and the rescue time,full transportation time,and hospitalization time were shorter than in Group B(P<0.05);the complication rate of patients with traumatic hemorrhagic shock in Group A was lower than in Group B(P<0.05);the family satisfaction with emergency nursing care in Group A was higher than in Group B(P<0.05).Conclusion:Emergency rescue interventions for patients with traumatic hemorrhagic shock can reduce blood loss,shorten rescue times,and improve the success rate of shock rescue,providing a safe and effective approach.
文摘H pylori gastric infection is one of the most prevalent infectious diseases worldwide. The discovery that most upper gastrointestinal diseases are related to Hpylori infection and therefore can be treated with antibiotics is an important medical advance. Currently, a first-line triple therapy based on proton pump inhibitor （PPI） or ranitidine bismuth citrate （RBC） plus two antibiotics （darithromycin and amoxicillin or nitroimidazole） is recommended by all consensus conferences and guidelines. Even with the correct use of this drug combination, infection can not be eradicated in up to 23% of patients. Therefore, several second line therapies have been recommended. A 7 d quadruple therapy based on PPI, bismuth, tetracycline and metronidazole is the more frequently accepted. However, with second-line therapy, bacterial eradication may fail in up to 40% of cases. When Hpylori eradication is striclly indicated the choice of further treatment is controversial. Currently, a standard third-line therapy is lacking and various protocols have been proposed. Even after two consecutive failures, the most recent literature data have demonsbated that Hpylori eradication can be achieved in almost all patients, even when antibiotic susceptibility is not tested. Different possibilities of empirical treatment exist and the available third-line strategies are herein reviewed.
文摘AIM： To compare the efficacy and side effect profiles of three furazolidone and amoxicillin-based quadruple rescue therapies for the eradication of Helicobacter pylori （H pylonS. METHODS： Patients who failed in the Hpylori eradication therapy for at least one course were randomly allocated into three groups. Group A received rebaprazole 10 mg＋ amoxicillin 1 g ＋ furazolidone 100 mg, and bismuth subcitrate 220 mg, twice daily for 1 wk; group B received the same regimen of group A but for 2 wk; and group C received the same regimen of group B, but furazolidone was replaced by furazolidone 100 mg three times daily. To record the side effect profiles at the end of the treatment, Hpylori eradication was assessed with 13C-urea breath test 4 wk after therapy. RESULTS： Sixty patients were enrolled including 28 males, and 20 patients in each group. The average age of the patients was 49.2 years, ranging from 18 to 84 years. H pylori eradication rates with per-protocol analysis were 82%, 89% and 90% in the three groups, respectively. Side effects were found in 11 patients, including mild dizziness, nausea, diarrhea and increased bowel movement. None of the 11 patients needed treatment for their side effects. CONCLUSION： One- or two-week furazolidone and amoxicillin-based quadruple rescue therapy with a low dose furazolidone （100 mg bid） for the eradication of Hpylori is effective. Extending the antibiotic course to 14 d could improve the eradication rates.
