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Evaluation of the Effectiveness and Efficiency of the Combination of Levamlodipine Besylate and Valsartan in the Treatment of Hypertension
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作者 Dazhuan Li 《Proceedings of Anticancer Research》 2024年第1期92-98,共7页
Objective:To investigate the effectiveness and efficiency of combining levamlodipine besylate and valsartan in the treatment of hypertension.Methods:This study selected 28 patients with hypertension as observation sub... Objective:To investigate the effectiveness and efficiency of combining levamlodipine besylate and valsartan in the treatment of hypertension.Methods:This study selected 28 patients with hypertension as observation subjects.The treatment duration ranged from January 2020 to June 2023.Using the random number table method,patients were divided into two groups.The control group received treatment with valsartan,while the observation group received a combination of valsartan and levamlodipine besylate.Therapeutic effects and safety were compared between the groups,and changes in the patient’s blood pressure and renal function index levels were assessed.Results:The total clinical effective rate of the observation group was significantly higher than that of the control group(P<0.05).The observation group demonstrated better diastolic blood pressure,systolic blood pressure,and renal function indicators compared to the control group(P<0.05).There was no significant difference in the incidence of adverse reactions between the two groups(P>0.05).Conclusion:The combined treatment of levamlodipine besylate and valsartan in patients with hypertension showed significant clinical efficacy and holds broad application value. 展开更多
关键词 Levamlodipine besylate VALSARTAN HYPERTENSION Renal function effective rate
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Evaluation of the Effect and Efficiency of Ear Tip Bloodletting Combined with Xianfang Huoming Yin in the Treatment of Early-Stage Wheals
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作者 Ying Pang 《Journal of Clinical and Nursing Research》 2024年第2期86-91,共6页
Objective:To evaluate the effect and efficiency of ear tip bloodletting combined with Xianfang Huoming Yin(XFH)in the treatment of early-stage wheals.Methods:70 patients with early-stage wheals admitted from September... Objective:To evaluate the effect and efficiency of ear tip bloodletting combined with Xianfang Huoming Yin(XFH)in the treatment of early-stage wheals.Methods:70 patients with early-stage wheals admitted from September 2020 to September 2022 were divided into two groups by randomized numerical table method,with 35 cases/group.Both groups received conventional treatment,the control group combined with XFH,and the observation group combined with ear tip bloodletting therapy and XFH.Conscious symptom scores,ocular indexes,therapeutic effects,and sleep quality between the two groups were compared.Results:After the treatment,the patients in the observation group had lower self-awareness symptom scores and sleep quality scores as compared to those in the control group;the diameter of the mass in the observation group was smaller than that of the control group after treatment;the average tear film rupture time and the time taken for the first non-contact tear film to rupture were longer in the observation group than those in the control group;the total effective rate of the treatment in the observation group was higher than that of the control group(P<0.05).Conclusion:Ear tip bloodletting combined with XFH was ideal for the treatment of early-stage wheals and has a high effective rate. 展开更多
关键词 Early stage of wheal Ear tip bloodletting Xianfang huoming yin effective rate
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Effect of Locking Compression Plate on the Treatment of Limb Fracture and the Effect of Operative Success Rate and Postoperative Recovery Time
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作者 Hanping Huang 《Journal of Integrative Medicine(双语)》 2020年第1期9-11,共3页
Objective:To analyze the effect of locking compression plate on the success rate of operation and the time of postoperative recovery.Methods:120 patients with limb fractures from March 2018 to March 2020 were randomly... Objective:To analyze the effect of locking compression plate on the success rate of operation and the time of postoperative recovery.Methods:120 patients with limb fractures from March 2018 to March 2020 were randomly divided into control group(60 cases)and observation group(60 cases).The control group was treated with plate screw internal fixation,The observation group used locking compression plate internal fixation,Compare the effect of treatment,the success rate of operation and the time of postoperative recovery.results:compared the effective rate of the two groups,the observation group(93.33%)was significantly higher than the control group(75.00%).Compared with the two groups,the success rate of operation and the time of postoperative recovery,the observed composition power was higher than that of the control group,and the postoperative recovery time was lower than that of the control group,P<0.05.Conclusion:The use of locking compression plate for the treatment of limb fracture can significantly increase the probability of successful operation,shorten the recovery time after operation,the overall curative effect is ideal,and the clinical popularization value is high. 展开更多
关键词 Limb fracture Locking compression plate internal fixation Plate screw internal fixation effect Surgical success rate Postoperative recovery time
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Experimental study of the effect of adipose stromal vascular fraction cells on the survival rate of fat transplantation
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作者 付冰川 《外科研究与新技术》 2011年第2期132-132,共1页
Objective To investigate the effect of adipose stromal vascular fraction cells(SVFs)on the survival rate of fat ransplantation.Methods 0.5mL autologous fat tissue was mixed with: ① DiI-labeled autologous SVFs (Group ... Objective To investigate the effect of adipose stromal vascular fraction cells(SVFs)on the survival rate of fat ransplantation.Methods 0.5mL autologous fat tissue was mixed with: ① DiI-labeled autologous SVFs (Group A);② 展开更多
关键词 rate ASCs Experimental study of the effect of adipose stromal vascular fraction cells on the survival rate of fat transplantation
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Clinical factors correlated with the success rate of miniscrews in orthodontic treatment 被引量:20
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作者 Nikolaos Topouzelis Phoebus Tsaousoglou 《International Journal of Oral Science》 SCIE CAS CSCD 2012年第1期38-44,共7页
Miniscrews offer a reliable alternative for anchorage during orthodontic treatment,particularly for non-cooperative patients or periodontal patients with alveolar bone loss.The study aims at assessing the correlation ... Miniscrews offer a reliable alternative for anchorage during orthodontic treatment,particularly for non-cooperative patients or periodontal patients with alveolar bone loss.The study aims at assessing the correlation of various clinical indicators with the success or failure of miniscrews used for anchorage during orthodontic treatment.Thirty-four consecutive patients with a cumulative total of 82 miniscrews implanted participated in the study.Generalized Estimating Equations were used to assess the correlation of various factors with success rates.The miniscrew was considered the unit of analysis clustered within site and within patient.The overall success rate of miniscrews was 90.2%.For every additional miniscrew used in a patient's oral cavity,the success rate was reduced by 67%.Retromandibular triangle and palatal placement and in movable mucosa resulted in lower success rate.The miniscrew length and diameter were found to correlate with success rates.Orthodontic force applied on miniscrews for uprighting purposes showed a lower success rate than that used for retraction.This study revealed that miniscrews present high success rates.The number of miniscrews used per patient,the miniscrew site placement,the soft tissue type of placement,the miniscrew length and diameter as well as the orthodontic force applied on the miniscrew showed significant correlation with success rates. 展开更多
关键词 miniscrews orthodontic anchorage success rate
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Optimal use of fielder XT guidewire enhances the success rate of chronic total occlusion percutaneous coronary intervention
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作者 Qian-Cheng Wang Hai-Ruo Lin +8 位作者 Yuan Han Hai Dong Kai Xu Shao-Yi Guan Zhen-Huan Chen Hui-Xin Hao Jian-Ping Bin Yu-Lin Liao Quan-Min Jing 《World Journal of Clinical Cases》 SCIE 2019年第8期928-939,共12页
BACKGROUND Chronic total occlusion(CTO) is found in 18-31% of patients who undergo coronary angiography. Successful recanalization of CTOs is associated with reduced recurrent angina pectoris rates and increased long-... BACKGROUND Chronic total occlusion(CTO) is found in 18-31% of patients who undergo coronary angiography. Successful recanalization of CTOs is associated with reduced recurrent angina pectoris rates and increased long-term survival.Although the success rate of CTO percutaneous coronary intervention(CTO-PCI)has improved, CTO-PCI remains technically challenging. The Fielder XT guidewire was designed for CTO lesions. To validate whether the use of the guidewire increases the success rate, we compared the results of CTO-PCI with or without the guidewire. We hypothesized that the use of Fielder XT guidewire can increase the success rate of CTO-PCI.AIM To investigate whether the use of Fielder XT guidewire increases the final procedural success of CTO-PCI via the anterograde approach.METHODS Between January 2013 and December 2015, a retrospective study was conducted on 1230 consecutive patients with CTO who received PCI via the anterograde approach at the General Hospital of Northern Theater Command. The patients were divided into an XT Group(n = 686) and a no-XT Group(n = 544) depending on whether Fielder XT guidewire was used. Both groups were compared for clinical parameters, lesion-related characteristics, procedural outcomes and inhospital complications. The data were statistically analyzed using Pearson's χ~2 test for categorical variables, and Students' t test was used to compare the quantitative data. Significant independent factors and a risk ratio with 95%confidence interval(CI) were assessed by multivariate logistic regression analysis.RESULTS In total, 1230 patients were recruited; 75.4% of the patients were male, and 55.8%of the patients were in the XT group. The overall success rate was 83.9%, with87.8% in the XT group. Based on multivariate logistic regression analysis, factors positively associated with procedural success were the use of Fielder XT guidewire(P = 0.005, 95%CI: 1.172-2.380) and systolic blood pressure(P = 0.011,95%CI: 1.003-1.022), while factors negatively associated with procedural success were blunt stump(P = 0.013, 95%CI: 1.341-11.862), male sex(P = 0.016, 95%CI:0.363-0.902), New York Heart Association(NYHA) class(P = 0.035, 95%CI: 0.553-0.979), contrast amount(P = 0.018, 95%CI: 0.983-0.998) and occlusion time(P =0.009, 95%CI: 0.994-0.999). No significant differences were found between the XT group and the no-XT group with respect to clinical parameters, lesion-related characteristics, coronary artery rupture [3(0.4%) vs 8(1.5%), P = 0.056], inhospital death [2(0.3%) vs 6(1.1%), P = 0.079] or in-hospital target lesion revascularization [3(0.4%) vs 7(1.3%), P < 0.099]. However, there were significant differences between the groups with respect to success rate [602(87.8%) vs 430(79.0%), P < 0.001], procedure time [(74 ± 23) vs(83 ± 21), P < 0.001], stent length[(32.0 ± 15.8) vs(37.3 ± 17.6), P < 0.001], contrast amount [(148 ± 46) vs(166 ± 43),P < 0.001], post-PCI myocardial infarction [43(6.3%) vs 59(10.8%), P = 0.004],major adverse cardiovascular event [44(6.4%) vs 57(10.7%), P = 0.007], side branch loss [31(4.5%) vs 44(8.1%), P = 0.009], contrast-induced nephropathy [29(4.2%) vs 40(7.4%), P = 0.018] and no reflow [8(1.2%) vs 14(2.9%), P = 0.034].CONCLUSION The use of Fielder XT guidewire shortens the Procedure and increases the success rate of CTO-PCI, and is also associated with reduced complication rates. 展开更多
关键词 Chronic total occlusion Percutaneous coronary intervention ANTEROGRADE WIRE ESCALATION Parallel WIRE technique Fielder XT GUIDEWIRE success rate
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Evaluation of factors affecting the success rate of orthodontic mini-implants by survival analysis
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作者 Un-Bong Baik Mohamed Bayome +3 位作者 Kwang-Heung Han Jae Hyun Park Min-Ho Jung Yoon-Ah Kook 《World Journal of Stomatology》 2013年第3期56-61,共6页
AIM: To investigate the success rate of mini-implants and its characteristics and risk factors by survival analyses. METHODS: Three hundred and ninety-four miniimplants of the same type were placed by a single clinici... AIM: To investigate the success rate of mini-implants and its characteristics and risk factors by survival analyses. METHODS: Three hundred and ninety-four miniimplants of the same type were placed by a single clinician. Age, gender, treatment duration, time of failure, side and jaw of implantation and the soft tissue at placement site were recorded. Odds ratio, survival curves, and Cox proportional hazard model were applied to evaluate the factors influencing the miniimplants' success rate. RESULTS: The cumulative success rate was 88.1%.The maxilla had a significantly higher success rate than that of the mandible(91.7% vs 83.7%, respectively, P = 0.019). Placement of mini-implants in the attached gingiva(AG) showed a higher success rate than that of the mucogingival junction(MGJ) and mucous membrane(MM)(AG, 94.3%; MGJ, 85.8%; MM, 79.4%; P < 0.001). Significant association was found between the jaw and the gingival tissue type(P < 0.001). There were no significant differences between maxilla and mandible when compared within each placement site.CONCLUSION: The gingival tissue type had the most significant effect on the success rate of the mini-implant with higher success rate in the attached gingiva. 展开更多
关键词 MINI-IMPLANT success rate SURVIVAL analysis GINGIVAL tissue Treatment planning
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Analysis of the Emergency Rescue Nursing Intervention Effect and Rescue Success Rate for Patients with Traumatic Hemorrhagic Shock
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作者 Lingli He 《Journal of Clinical and Nursing Research》 2024年第10期81-87,共7页
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
关键词 Emergency rescue nursing Traumatic hemorrhagic shock Rescue success rate
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Research on the Intervention Effect of Vibroacoustic Therapy in the Treatment of Patients with Depression
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作者 Xiaodan Wang Zheng Xie Guiping Du 《International Journal of Mental Health Promotion》 2024年第2期149-160,共12页
Research purpose:This study implemented somatosensory music therapy on patients with depressive disorders,and explored the effects of somatosensory music therapy on the degree of depression,positive and negative emoti... Research purpose:This study implemented somatosensory music therapy on patients with depressive disorders,and explored the effects of somatosensory music therapy on the degree of depression,positive and negative emotions,intuitive stress and autonomic nervous function of patients.Research method:We collected 66 patients diagnosed with depression from the Department of Psychological Medicine of Henan Provincial People’s Hospital,and divided them into a control group and an intervention group according to the random number table,with 33 people in each group.The control group received routine psychiatric treatment and nursing.On the basis of the control group,the intervention group received somatosensory music therapy 3 times a week,30 min each time,for 4 consecutive weeks.The Hamilton Depression Scale,Positive and Negative Emotion Scale,Perceived Stress Scale,and Heart Rate Variability Index were collected and analyzed at baseline(T0),2 weeks after treatment(T1)and 4 weeks after treatment(T2).Research results:After 4 weeks of treatment,the HAMD scores of the two groups decreased to varying degrees,and the difference between the groups was statistically significant(p<0.05).After 4 weeks of treatment,the scores of positive emotions in both groups increased to varying degrees,and the scores of negative emotions increased to varying degrees.The scores decreased to varying degrees,and there were statistically significant differences between the positive and negative emotion groups(p<0.05).After 4 weeks of treatment,the CPSS scores of the two groups decreased to varying degrees,and the difference between the two groups was statistically significant(p<0.05).Analyzing the main effect of intervention factors alone,after 4 weeks of treatment,SDNN and RMSSD indexes all increased to varying degrees,and the degree of increase in the intervention group was greater than that in the control group,and the difference between the groups was statistically significant(p<0.05).Research conclusion:assisting somatosensory music therapy for patients with depressive disorders can improve depressive symptoms,increase positive emotions,reduce negative emotions,and reduce perceived stress.These are beneficial to restore the balance of autonomic nervous system,and are effective for the treatment of depression. 展开更多
关键词 Somatosensory music depressive disorder intervention effect perceived stress heart rate variability
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Impact of cooling rate on mechanical properties and failure mechanism of sandstone under thermal-mechanical coupling effect 被引量:1
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作者 Pingye Guo Peng Zhang +2 位作者 Mohua Bu Hang Xing Manchao He 《International Journal of Coal Science & Technology》 EI CAS CSCD 2023年第2期97-116,共20页
High geo-temperature is one of the inevitable geological disasters in deep engineering such as resource extraction,space development,and energy utilization.One of the key issues is to understand the mechanical propert... High geo-temperature is one of the inevitable geological disasters in deep engineering such as resource extraction,space development,and energy utilization.One of the key issues is to understand the mechanical properties and failure mechanism of high-temperature rock disturbed by low-temperature airflow after excavation.Therefore,.the experimental and numerical investigation were carried out to study the impact of cooling rate on mechanical properties and failure mechanism of high temperature sandstone.First,uniaxial compression experiments of high temperature sandstone at different real-time cooling rates were carried out to study the mechanical properties and failure modes.The experimental results indicate that the cooling rate has a significant effect on the mechanical properties and failure modes of sandstone.The peak strain,peak stress,and elastic modulus decrease with an increase in cooling rate,and the fragmentation degree after failure increases gradually.Moreover,the equivalent numerical model of heterogeneous sandstone was established using particle flow code(PFC)to reveal the failure mechanism.The results indicate that the sandstone is dominated by intragrain failure in the cooling stage,the number of microcracks is exponentially related to the cooling rate,and the higher the cooling rate,the more cracks are concentrated in the exterior region.Under axial loading,the tensile stress is mostly distributed along the radial direction,and the damage in the cooling stage is mostly due to the fracture of the radial bond.In addition,axial loading,temperature gradient and thermal stress mismatch between adjacent minerals are the main reasons for the damage of sandstone in the cooling stage.Moreover,the excessive temperature gradient in the exterior region of the sandstone is the main reason for the damage concentration in this region. 展开更多
关键词 High geo-temperature thermo-mechanical coupling effect Cooling rate SANDSTONE PFC
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Bending Strength of Glass Materials under Strong Dynamic Impact and Its Strain Rate Effects
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作者 LIU Xiaogen QI Shuang +2 位作者 WEI Shaoshan WAN Detian JIN Chunxia 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS CSCD 2024年第6期1358-1364,共7页
Based on the structural characteristics of the high-speed loading tester,a four-point bending test device was designed to carry out the four-point bending strength test of glass under the action of static load and dif... Based on the structural characteristics of the high-speed loading tester,a four-point bending test device was designed to carry out the four-point bending strength test of glass under the action of static load and different impact velocities,and the formulae for calculating the maximum dynamic stress and strain rate of glass specimens under the action of impact loads were derived.The experimental results show that the bending strength values of the glass under dynamic impact loading are all higher than those under static loading.With the increase of impact speed,the bending strength value of glass specimens generally tends to increase,and the bending strength value increases more obviously when the impact speed exceeds 0.5 m/s or higher.By increasing the impact velocity,higher tensile strain rate of glass specimens can be obtained because the load action time becomes shorter.The bending strength of the glass material increases with its tensile strain rate,and when the tensile strain rate is between 0 and 2 s^(-1),the bending strength of the glass specimen grows more obviously with the strain rate,indicating that the glass bending strength is particularly sensitive to the tensile strain rate in this interval.As the strain rate increases,the number of cracks formed after glass breakage increases significantly,thus requiring more energy to drive the crack formation and expansion,and showing the strain rate effect of bending strength at the macroscopic level.The results of the study can provide a reference for the load bearing and structural design of glass materials under dynamic loading. 展开更多
关键词 glass materials strong dynamic impact bending strength strain rate effect dynamic enhancement factor
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Effect of Health Management in Raising Awareness Rate of Disease Prevention and Treatment in Patients with Prehypertension
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作者 Jing Huang 《Journal of Biosciences and Medicines》 2024年第2期236-243,共8页
Objective: To analyze the effect of health management on improving the awareness rate of disease prevention and treatment in patients with prehypertension, so as to provide guidance for clinical management of patients... Objective: To analyze the effect of health management on improving the awareness rate of disease prevention and treatment in patients with prehypertension, so as to provide guidance for clinical management of patients with prehypertension. Methods: 108 patients diagnosed with prehypertension in our hospital were divided into a control group and an experimental group. The control group was not given management measures, while the experimental group was given health management. The incidence of hypertension and cognition level of hypertension knowledge were compared between the two groups after management. Results: The incidence of hypertension in the experimental group was 7.41% lower than that in the control group 29.63%. The cognitive level of hypertension in the patients (66.54 ± 1.25) was significantly higher than that in the patients without health management (41.45 ± 2.45), and P < 0.05;Conclusion: For patients with prehypertension, the implementation of health management is helpful to improve their cognition of hypertension, master related prevention knowledge, and reduce the incidence of hypertension. 展开更多
关键词 effect of Health Management in Raising Awareness rate of Disease Prevention and Treatment in Patients with Prehypertension
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Effects of breeding success,age and sex on breeding dispersal of a reintroduced population of the Crested Ibis(Nipponia nippon)in Ningshan County,China 被引量:4
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作者 Rong Dong Xinping Ye +4 位作者 Lin Zhong Xia Li Min Li Huaqiang Wang Xiaoping Yu 《Avian Research》 CSCD 2018年第4期314-320,共7页
Background: Breeding dispersal is an important ecological process that affects species' population dynamics and colonization of new suitable areas. Knowledge of the causes and consequences of breeding dispersal is... Background: Breeding dispersal is an important ecological process that affects species' population dynamics and colonization of new suitable areas. Knowledge of the causes and consequences of breeding dispersal is fundamental to our understanding of avian ecology and evolution. Although breeding success for a wild and reintroduced population of the Crested Ibis(Nipponia nippon) has been reported, the relationships between individuals' breeding dispersal and their breeding success, age and sex remain unclear.Methods: Ibises' breeding dispersal distance, which is the distance moved by adults between sites of reproduction, was estimated based on the observations of consecutive breeding sites of marked ibis individuals. From observational and capture-recapture data(n as = 102) over 9 years, individuals' breeding dispersal probability in relation to age, sex, and reproductive success wanalyzed via a generalized linear mixed effect modeling approach.Results: Our results show that 55% males and 51% females keep their previous territories following nesting success. Failed breeding attempts increased dispersal probabilities. Both females and males failed in breeding were more likely to disperse with greater distances than successful birds(females: 825 ± 216 m vs 196 ± 101 m, males: 372 Crested Ibis exhibited a female-biased dispersal pattern that the mean dispersal distance± 164 m vs 210 ± 127 m). of females(435 ± 234 m) was much larger than that of males(294 ± 172 m).Conclusion: Our results are fundamental to predict the patterns of breeding dispersal related to reproductive success under different release sites. From the conservation point of view, landscape connectivity between the reintroduced populations should be taken into account in accordance with the distance of breeding dispersal. 展开更多
关键词 BREEDING dispersal BREEDING success Generalized linear mixed effect model Crested IBIS Reintroduced POPULATION
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Model Building of the Initial Crown Effect Rate in 4-High Mill 被引量:2
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作者 Jianzhong XU, Dianyao GONG, Wencai ZHANG, Xianwen CHANG, Xianghua LIU and Guodong WANG State Key Laboratory of Rolling Technology and Automation, Northeastern University, PO. Box 105, Shenyang 110004, China 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2005年第2期165-169,共5页
The code for calculating the crown effect rate of hot strip steel Was developed using the effect function method. The effect of the initial crown on the crown of the product in hot strip rolling was investigated. The ... The code for calculating the crown effect rate of hot strip steel Was developed using the effect function method. The effect of the initial crown on the crown of the product in hot strip rolling was investigated. The coefficients of a polynomial of degree six for calculating the base value of initial crown effect rate in 4-high mill were determined and the compensation factors of per unit width rolling force, bending force, work roll crown and draft on the initial crown effect rate were given. The difference between the calculation result by established model and theoretical value obtained by effect function method was 4.88 μm when the strip width was 1.85 m. 展开更多
关键词 4-high mill effect function Hot rolling strip effect rate
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Particle Size Distribution,Powder Agglomerates and Their Effects on Sinterability of Ultrafine Alumina Powders 被引量:2
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作者 Renjie ZENG (Dept. of Materials Science, University of Xiamen, Xiamen 361005, China) B.Rand (Dept.of Materials, University of Leeds, Leeds LS2 9JT, England) 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2000年第4期393-396,共4页
An intensive study of the particle size distribution of four commercial ultrafine alumina powders to obtain information about the powder agglomeration and relate them to the compactibility and the sinterability has be... An intensive study of the particle size distribution of four commercial ultrafine alumina powders to obtain information about the powder agglomeration and relate them to the compactibility and the sinterability has been made. 展开更多
关键词 rate Particle Size Distribution Powder Agglomerates and their effects on Sinterability of Ultrafine Alumina Powders AKP than
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CLOUD RADIATIVE AND MICROPHYSICAL EFFECTS ON THE RELATION BETWEEN SPATIAL MEAN RAIN RATE, RAIN INTENSITY AND FRACTIONAL RAINFALL COVERAGE 被引量:1
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作者 ZHANG Xiao-yi ZHANG Zi-han LI Xiao-fan 《Journal of Tropical Meteorology》 SCIE 2018年第3期346-355,共10页
Cloud radiative and microphysical effects on the relation between spatial mean rain rate, rain intensity and fractional rainfall coverage are investigated in this study by conducting and analyzing a series of two-dime... Cloud radiative and microphysical effects on the relation between spatial mean rain rate, rain intensity and fractional rainfall coverage are investigated in this study by conducting and analyzing a series of two-dimensional cloud resolving model sensitivity experiments of pre-summer torrential rainfall in June 2008. The analysis of time-mean data shows that the exclusion of radiative effects of liquid clouds reduces domain mean rain rate by decreasing convective rain rate mainly through the reduced convective-rainfall area associated with the strengthened hydrometeor gain in the presence of radiative effects of ice clouds, whereas it increases domain mean rain rate by enhancing convective rain rate mainly via the intensified convective rain intensity associated with the enhanced net condensation in the absence of radiative effects of ice clouds. The removal of radiative effects of ice clouds decreases domain mean rain rate by reducing stratiform rain rate through the suppressed stratiform rain intensity related to the suppressed net condensation in the presence of radiative effects of liquid clouds, whereas it increases domain mean rain rate by strengthening convective rain rate mainly via the enhanced convective rain intensity in response to the enhanced net condensation in the absence of radiative effects of liquid clouds. The elimination of microphysical effects of ice clouds suppresses domain mean rain rate by reducing stratiform rain rate through the reduced stratiform-rainfall area associated with severely reduced hydrometeor loss. 展开更多
关键词 pre-summer torrential rainfall radiative effects of liquid and ice clouds rain rate rain intensity fractional rainfall coverage
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Effect of Penetration Rates on the Piezocone Penetration Test in the Yellow River Delta Silt 被引量:1
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作者 ZHANG Jiarui MENG Qingsheng +4 位作者 ZHANG Yan FENG Xiuli WEI Guanli SU Xiuting LIU Tao 《Journal of Ocean University of China》 SCIE CAS CSCD 2022年第2期361-374,共14页
Partial drainage often occurs during piezocone penetration testing on Yellow River Delta silt because of its intermediate physical and mechanical properties between those of sand and clay.Yet,there is no accurate unde... Partial drainage often occurs during piezocone penetration testing on Yellow River Delta silt because of its intermediate physical and mechanical properties between those of sand and clay.Yet,there is no accurate understanding for the range of penetra-tion rates to trigger the partial drainage of silt soils.In order to fully investigate cone penetration rate effects under partial drainage condi-tions,indoor 1 g penetration model tests and numerical simulations of cavity expansion at variable penetration rates were carried out on the Yellow River Delta silt.The boundary effect of the model tests and the variation of key parameters at the different cavity ex-pansion rates were analyzed.The 1 g penetration model test results and numerical simulations results consistently indicated that the penetration rate to trigger the partially drainage of typical silt varied at least three orders of magnitude.The numerical simulations also provide the reference values for the penetration resistance corresponding to zero dilation and zero viscosity at any given normalized penetration rate for silt in Yellow River Delta.These geotechnical properties can be used for the design of offshore platforms in Yel-low River Delta,and the understanding of cone penetration rate effects under the partially drained conditions would provide some technical support for geohazard evaluation of offshore platforms. 展开更多
关键词 Yellow River Delta silt cone penetration rate effects 1g model simulation numerical analysis
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Effect of Salinity-Changing Rates on Filtration Activity of Mussels from Two Sites within the Baltic Mytilus Hybrid Zone:The Brackish Great Belt(Denmark)and the Low Saline Central Baltic Sea 被引量:4
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作者 Hans Ulrik Riisgard Magali Mulot +1 位作者 Lucia Merino Daniel Pleissner 《Open Journal of Marine Science》 2014年第2期101-109,共9页
Mussels from two sites within the Baltic mussel (Mytilus edulis × M. trossulus) hybrid zone were used in a comparative study on the effects of salinity-changing rates on filtration activity. The acute effect of v... Mussels from two sites within the Baltic mussel (Mytilus edulis × M. trossulus) hybrid zone were used in a comparative study on the effects of salinity-changing rates on filtration activity. The acute effect of varying salinity-changing rates was found to be similar in M. edulis from the brackish Great Belt and in M. trossulus from the low saline Central Baltic Sea, and the relationships could be described by linear regression lines through 0.0 indicating that the acute effect of deteriorating conditions at decreasing salinities is the opposite as for improving conditions when the salinity is subsequently increased. Further, both M. edulis and M. trossulus acclimatized to 20 psu reacted to an acute salinity change to 6.5 psu by immediately closing their valves whereupon the filtration rate gradually increased during the following days, but only M. trossulus had completely acclimatized to 6.5 psu within 5 days which may be explained by different genotypes of M. edulis and M. trossulus which probably reflected an evolutionary adaptation of the latter to survive in the stable low-salinity Baltic Sea. 展开更多
关键词 Blue Mussels Mytilus edulis Mytilus trossulus Acute Salinity effects ACCLIMATIZATION Filtration rates
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Comparing Overall Success Rates of Cognitive-Behavioral Therapy,Eye Movement Desensitization and Reprocessing,Dialectical Behavior Therapy and Hypnosis
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作者 Edwin K.Yager 《Psychology Research》 2018年第6期231-250,共20页
This study is a comparative analysis of the effectiveness of four psychotherapeutic treatment modalities:Cognitive-Behavioral Therapy(CBT),Eye Movement Desensitization and Reprocessing(EMDR),Dialectical Behavior Thera... This study is a comparative analysis of the effectiveness of four psychotherapeutic treatment modalities:Cognitive-Behavioral Therapy(CBT),Eye Movement Desensitization and Reprocessing(EMDR),Dialectical Behavior Therapy(DBT),and Hypnotic methods(HYP).The aim of this study was to determine the independent effectiveness of the four treatment modalities by reviewing the available literature.A total of 26,724 studies were identified by ProQuest search and screened to eliminate studies that did not permit computation of the success rates of their use.Of that total,648 studies included objective data in some form,with 207 studies qualifying for inclusion in the analysis.The“Success Rate”measure was used as the standard of measurement,and was obtained by comparing the pre-treatment scores with post-treatment scores as published in the qualifying studies.Analysis revealed the most effective treatment modality to be EMDR,with a success rate of 49.4%.CBTwas the second most effective at 40.5%,and the success rates of Hypnosis and DBT were 39.2%and 22.4%respectively.The clinical question in therapy should probably be,“How effective can I expect this method of treatment to be?”The findings of this study reveal CBT to be less effective than EMDR and equally effective as Hypnosis;and with DBT being significantly less effective,we are left with the implication that we must expand what we know. 展开更多
关键词 CBT EMDR DBT HYPNOSIS effectIVENESS efficacy success rate
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EFFECTS OF RATE OF ADDITION AND TENIPERATURE ON THE ENANTIOSELECTIVITY IN BORANE REDUCTION OF KETONES CATALYZED BY CHIRAL OXAZABOROLIDINE
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作者 Yao Zhong JIANG Yong +1 位作者 QIN snd Ai Qiao MIChengdu Institute of Organic Chemtetry, A cademia Sinica, Chengdu 610041 《Chinese Chemical Letters》 SCIE CAS CSCD 1995年第1期9-12,共4页
The exoellent enantioselectivity with o. p. >99% in asymmetrio borane reduction of acetophenone catalyzed by (4S, 5R ) 4, 5-diphenyi-1. 3. 2-oxazaborolidine has been achieved via the important modincation of the ... The exoellent enantioselectivity with o. p. >99% in asymmetrio borane reduction of acetophenone catalyzed by (4S, 5R ) 4, 5-diphenyi-1. 3. 2-oxazaborolidine has been achieved via the important modincation of the reaction conditions. 展开更多
关键词 rate REDUCTION BORANE BY CATALYZED CHIRAL effectS IN KETONES OF
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