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颈脊髓中央管综合征钛板内固定和药物治疗的预后因素分析 预览
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作者 张辉 徐南伟 +3 位作者 农鲁明 汤雪明 周鑫叠 蒋巍 《中国组织工程研究》 CAS 北大核心 2020年第3期348-353,共6页
背景:在颈脊髓中央管综合征的治疗中,因为患者神经恢复速度以及程度的不同使临床难以预测神经恢复的程度。颈脊髓中央管综合征的治疗,特别是关于治疗方式,仍然存在争议。目的:探讨药物治疗和钛板内固定治疗颈脊髓中央管综合征预后的影... 背景:在颈脊髓中央管综合征的治疗中,因为患者神经恢复速度以及程度的不同使临床难以预测神经恢复的程度。颈脊髓中央管综合征的治疗,特别是关于治疗方式,仍然存在争议。目的:探讨药物治疗和钛板内固定治疗颈脊髓中央管综合征预后的影响因素。方法:对2012年6月至2017年6月南京医科大学附属常州第二人民医院收治并获得随访的243例颈脊髓中央管综合征患者进行回顾性分析,根据治疗方案分为2组,钛板组152例行钛板置入内固定,药物治疗组91例给予药物治疗。所有患者对治疗方案均知情同意,且得到医院伦理委员会批准。采用美国脊柱损伤学会和日本骨科协会标准对患者神经功能进行评定,记录所有患者治疗前24 h内及治疗后6,12,24个月随访的美国脊柱损伤学会和日本骨科协会评分。将年龄、治疗方式和性别因素纳入颈脊髓中央管综合征治疗后6,24个月随访时的预后单因素分析。之后将年龄、治疗方式和性别因素纳入颈脊髓中央管综合征治疗后6,24个月随访时的预后多因素Logistic回归分析。结果与结论:①243例患者均获24个月以上随访,治疗后恢复良好;②治疗后6个月药物治疗组美国脊柱损伤学会评分和日本骨科协会评分均低于钛板组(P=0.001 2,0.000 0);但治疗后24个月随访时药物治疗组的美国脊柱损伤学会和日本骨科协会评分均高于钛板组(P=0.037 4,0.047 8);③颈脊髓中央管综合征患者治疗后6个月的预后与患者年龄和治疗方式有相关性(P=0.007 2,P <0.000 1),且药物治疗及年龄大于50岁与颈脊髓中央管综合征患者治疗后6个月不良预后相关(P=0.043,P=0.010);④颈脊髓中央管综合征治疗24个月随访时的预后与患者的治疗方式有相关性(P=0.0043),且药物治疗与颈脊髓中央管综合征患者治疗后24个月随访时预后相关(P=0.021);⑤结果提示,钛板内固定治疗时患者的6个月内恢复� 展开更多
关键词 钛板 内固定 药物治疗 颈脊髓中央管综合征 预后 年龄 LOGISTIC回归分析
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Use of the average age ratio method in analyzing age heaping in censuses:The case of China 预览
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作者 Danan Gu Qiushi Feng 《国际人口学期刊》 2019年第1期13-26,共14页
Based on the methods of the average period age ratio and the average cohort age ratio,this study systematically assesses age heaping or digit preference in all population censuses of China.Our study finds that the ove... Based on the methods of the average period age ratio and the average cohort age ratio,this study systematically assesses age heaping or digit preference in all population censuses of China.Our study finds that the overall age heaping was relatively low in the Chinese censuses;however,there was a notable preference for ages ending with zero after age 50 in the first two censuses,despite a weakening trend over time.Our study further shows that age heaping in China’s censuses is likely associated with age-related policies such as those on late marriage and retirement.As shown in the study,the average age ratio method can be an alternative of the Whipple’s Index and be improved if the size of birth cohort was taken into account when the number of births is generally reliable. 展开更多
关键词 Age concentration INDEX Age heaping age RATIO Age reporting AVERAGE age RATIO AVERAGE period age RATIO AVERAGE cohort age RATIO China CENSUS DIGIT preference DIGIT AVOIDANCE Whipple’s INDEX Myer’s blended INDEX
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Wheelchair Seating: Peak Pressure Distribution in Young versus Elderly Healthy Controls 预览
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作者 Marina Timm Kersti Samuelsson 《康复医学(英文)》 2019年第2期25-34,共10页
Background: People may use a wheelchair when they need assistance with mobility. Some users have to remain seated in their wheelchair for most of their awake time and for a lot of activities. The need for a well fitte... Background: People may use a wheelchair when they need assistance with mobility. Some users have to remain seated in their wheelchair for most of their awake time and for a lot of activities. The need for a well fitted and supportive wheelchair is important and, for those who use the wheelchair for many hours, peak pressure distribution is of interest to prevent pressure ulcers and discomfort. Aim: To describe how high local peak pressures may be distributed over risk areas for pressure ulcers in different wheelchair settings. Methods: Two groups of healthy adults were recruited (40 elderly and 30 younger individuals). Two standard models of manual wheelchairs were used together with two types of wheelchair cushions. Results: The elderly group had a higher peak pressure over the ischial tuberosity and increased posterior pelvic rotation in the shaped seat cushion. Both groups had higher peak pressure over the trochanter in the shaped seat cushion. Peak pressure was also higher over the coccyx for the elderly in the shaped seat cushion compared with the plain cushion;this was lower for the younger group. Discussion: The results indicate that age might influence the important physical prerequisites when fitting a wheelchair to an individual. 展开更多
关键词 Age Interface PRESSURE PRESSURE ULCERS Prevention
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Semantic and Phonemic Verbal Fluency Performance in Patients with General Anxiety Disorders and Allostatic Load under Alprazolam Treatment 预览
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作者 Carlos A. Soria Carolina Remedi +1 位作者 Luciana D’Alessio Emilio J. A. Roldán 《精神病学期刊(英文)》 2019年第2期138-152,共15页
Purpose: Anxiety disorders are frequently associated with chronic stress with possible cognitive consequences. The aim of this study was to determine the verbal fluency performance in a cohort of patients with anxiety... Purpose: Anxiety disorders are frequently associated with chronic stress with possible cognitive consequences. The aim of this study was to determine the verbal fluency performance in a cohort of patients with anxiety disorders and allostatic load, treated with alprazolam during 12 weeks. Methods: Patients with GAD (general anxiety disorders, DSM IV), with >6 in Hamilton Anxiety Rating Scale (HAM-A), neuroticism > 18 (NEO-FFI inventory), and normal Mini-Mental State Examination were included. Clinical and Psychiatric examination, Allostatic Load Index and cognitive assessment were analyzed before and after 12 weeks of treatment. The phonemic and semantic verbal fluency tests were determined in all patients. The scoring for each fluency task was determined by counting the number of correct words. The total score from each semantic and phonemic verbal task was analyzed comparing the individual score with normal data controlled by age and sex. Patients with scores > ?2 standard deviation (SD) from normative data were considered impaired. Results: Fifty-four patients completed the semantic verbal fluency test before treatment and fifty patients completed after treatment. According to the z-scores before treatment 7 patients of 54 (12.9%) had verbal fluency impairments. After treatment none patients showed semantic verbal fluency deficits but 3 patients of 50 (6%) showed phonemic impairments. Impaired group was significantly associated with an older age before treatment (p = 0.033) and with a similar tendency but not significant (p = 0.09) after treatment (Student t test). Conclusion: In this study older age factor was associated with verbal fluency impairment in GAD patients. Stratified treatments analyzing age and sex factors, including allostatic load measurements and cognitive assessments may be useful tools to determine the effectiveness and the safety of psychopharmacological treatments. 展开更多
关键词 VERBAL FLUENCY Test CHRONIC Stress Allostatic Load SEX Age
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Addition of Insulin to Treatment Regimen in Type 2 Diabetes: The Significance of Age and Duration among Sudanese Diabetic Patients 预览
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作者 Hisham Mohammed Abdelrahim Abdelhaleem Mustafa Madani +2 位作者 Asma Noureldaim Mahmoud Tarig Mohammed El-hadiyah Abubakr Khidir Yousif 《药理与制药(英文)》 2019年第10期456-463,共8页
Background: Type 2 diabetes is a progressive disease and as the result of patient’s age and diabetes duration, β-cell ability for insulin secretion deteriorates continually and finally fails to meet body requirement... Background: Type 2 diabetes is a progressive disease and as the result of patient’s age and diabetes duration, β-cell ability for insulin secretion deteriorates continually and finally fails to meet body requirement. Intensification of treatment drug regimen including addition of insulin is critical to maintain glycemic target and reduce developing of long-term complications. Objective: The main purpose of this study was to investigate the effect of diabetes duration and patients’ age on addition of insulin to treatment regimen. Methods: A single centre, cross-sectional hospital-based study was done among 351 diabetes Mellitus (DM) patients visiting Ribat University Hospital Diabetic Clinic, Khartoum State, Sudan. Data was collected using constructed, validated and multiple-choice questionnaire. Results: From 351 patients enrolled in the study, female were 65.8% and male 34.2%. About 64.4% were on oral anti-diabetic;35.6% on insulin;about 31.6% shifted to insulin when their ages above 40 years;and 22.8% when diabetes duration was above 5 years. Co-morbidity was 54.4% and 60.2% of patients had hypertension. Conclusion: Interactions between age and longer duration of diabetes were mostly significant reasons for transferring patients to insulin. Percent of insulin users and co-morbidity was within international range. 展开更多
关键词 Type 2 DIABETES INSULIN DURATION Age SUDANESE
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Age and Gender Dependent Deposition of Crude Nutrients and Energy in Fast Growing Meat-Type Chickens 预览
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作者 Christian Wecke Frank Liebert 《动物科学期刊(英文)》 2019年第1期35-50,共16页
Two consecutive growth studies were conducted to investigate the age-dependent nutrient and energy deposition in male and female meat-type chickens (Ross 308) based on feather and feather-free body fraction data deter... Two consecutive growth studies were conducted to investigate the age-dependent nutrient and energy deposition in male and female meat-type chickens (Ross 308) based on feather and feather-free body fraction data determined according to the comparative slaughter technique. Birds were reared under standardized housing conditions (15 floor pens per gender, 5 birds per pen). Both the starter (day 1 to 22) and grower diets (day 22 to 36) were based on corn, wheat, soybean meal, soybean protein concentrate and crystalline feed amino acids. Diets were formulated to ensure an equal feed protein quality close to the ideal amino acid ratio by adjusting a constant mixture of the feed proteins. Individual body weight (BW) and feed intake per pen were recorded weekly. At the start (day 1) as well as on a weekly basis until the end of the 5th week, 15 birds per gender (each 3 pens of 5 birds) were selected and euthanized following 24 h feed deprivation. Subsequently, the feathers were manually removed and quantified. Crude nutrient analysed in representative samples of both feather and feather-free body fractions. The nutrient and energy deposition in the bodies of both genders were significantly increased with increasing age (p . Male birds deposited significantly higher body protein (p and female birds significantly more fat and energy in the whole body (p during the entire growth period. In contrast, no differences were found in protein contents of the BW gain between genders dependent on age (p > 0.05). However, the protein partitioning in the gain of both analyzed body fractions provided oppositional results. Accordingly, male birds yielded relatively more protein in the feather-free body fraction (p and females relatively more feather protein (p as related to the whole body protein gain. 展开更多
关键词 Growing CHICKENS Growth Performance Feed DEPRIVATION Empty Body Mass Nutrient DEPOSITION ENERGY DEPOSITION FEATHER Protein DEPOSITION Age GENDER
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Population Normative Data of the Moroccan Arabic Version of Three Components of the 10/66 Dementia Research Group Cognitive Test Battery;with Moroccan Illiterate and Semi-Illiterate Subjects 预览
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作者 Asmaa Oumellal Mustapha El Alaoui Faris Maria Benabdeljlil 《阿尔茨海默氏病研究进展(英文)》 2019年第1期1-14,共14页
The aim of this study was to provide normative data of the Moroccan Arabic version of the 10/66 Dementia Research Group cognitive test battery and to explore the effects of age, education/illiteracy, and gender on the... The aim of this study was to provide normative data of the Moroccan Arabic version of the 10/66 Dementia Research Group cognitive test battery and to explore the effects of age, education/illiteracy, and gender on the performance of these tests. One hundred healthy subjects (67 illiterates and 33 semi-illiterates) participated in this study. None of the participants had serious medical, psychiatric, or neurological disorders including dementia. The protocol included the administration of three components of the 10/66 Dementia Research Group cognitive test battery;Community Screening Instrument for Dementia (CSI “D”, generating the COGSCORE measure of global function), and the Consortium to Establish a Registry for Alzheimer’s Disease (CERAD) verbal fluency (VF), word list memory (WLM, immediate recall) tests. All the test scores were not significantly influenced by sex and age. There was no significant effect of education/illiteracy on the CERAD verbal fluency (VF) and Word List Memory (immediate recall) test scores, but a weakly significant (p < 0.05) effect on the CSI “D” COGSCORE performance. These normative data will be useful for clinical interpretations of the three components of the 10/66 Dementia Research Program protocol in illiterate and semi-illiterate Moroccan subjects with cognitive disorders. 展开更多
关键词 10/66 COGNITIVE Test Battery NORMATIVE Study Age Education ILLITERACY
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Effect of Age and Breeds of Cattle on Carcass and Meat Characteristics of Arsi, Boran, and Harar Cattle in Ethiopia 预览
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作者 Timketa Dagne Tefera Yesihak Yusuf Mummed +3 位作者 Mohammed Yusuf Kurtu Mengistu Urge Letta Travis G. O’Quine Jessie L. Vipham 《动物科学期刊(英文)》 2019年第3期367-383,共17页
The objective of this study was to determine the effect of age and breed of cattle on carcass and meat characteristics in Ethiopia. A total of 39 (Arsi 11, Boran 14 and Harar 14) cattle breeds with age categories of &... The objective of this study was to determine the effect of age and breed of cattle on carcass and meat characteristics in Ethiopia. A total of 39 (Arsi 11, Boran 14 and Harar 14) cattle breeds with age categories of <3, 4 - 6, and 7 - 9 years were used for the study. The bulls were purchased from their respective production system of mixed crop livestock system (Arsi and Harar) and Ranch (Boran). Parameters such as live and carcass weight, meat yield percent, fat characteristics, and primal beef cuts were evaluated. Complete randomized design was used for the study. The live weight of bulls at <3, 4 - 6 and 7 - 9 years ranged 135 - 183, 167 - 181, and 155 - 433 kg, respectively. The carcass weight, dressing percentage, meat yield percent, forequarter, hindquarter, rib eye area, and fat thickness ranged 57 - 209.73 kg, 41.8% - 51.6%, 32% - 58%, 11.7 - 56.42 kg, 14.04 - 45.34 kg, 4.78 - 10.25 square inches and 0.18 - 0.38 inches, respectively. At an early age category (<3 years) meat yield percentage of Arsi, Boran and Harar breeds were 50.86, 30 and 18.72, respectively, and as age category shifted from one age category to the next Harar increased by 13× and Boran by 2.9× and Arsi decreased by -0.93×. The mean rib percentage of Arsi, Boran and Harar were in the range of 7.98 - 9.57, 8.62 - 10.44 and 7.08 - 8.83, respectively. Breed and age of bulls had significantly affected primal meat cuts. Meat yield was predicted from live and hot carcass weight with coefficient determination (R2) of 70.66% and 74.75%, respectively. From the study, it was concluded that age and breeds of cattle had significantly influence on carcass and meat characteristics. Therefore, to determine whether variations were due to genetic or environmental cause’s evaluation of the three breeds under similar feeding condition was recommended. 展开更多
关键词 BREED Age CARCASS Meat Yield PERCENT Fat Characteristics
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影响生育力的因素及高龄生育的策略
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作者 孙梅 崔文娟 《山东大学学报:医学版》 CAS 北大核心 2019年第2期23-28,共6页
影响生育力的因素非常复杂,年龄增长是生育力下降最不可抗拒的因素,不良遗传、环境、精神心理、生活方式等因素的联合作用也会加速生育力的损害。随着科技的进步,已有多种生育力评估的指标,建议生育期男女尤其是高龄夫妇及时进行生育评... 影响生育力的因素非常复杂,年龄增长是生育力下降最不可抗拒的因素,不良遗传、环境、精神心理、生活方式等因素的联合作用也会加速生育力的损害。随着科技的进步,已有多种生育力评估的指标,建议生育期男女尤其是高龄夫妇及时进行生育评估、排除妊娠相关风险,正确对待助孕技术、赠卵及助孕年龄上限。 展开更多
关键词 年龄 生育力 影响因素 生育评估 高龄生育 体外助孕
Arsenic variability and groundwater age in three water supply wells in southeast New Hampshire 预览
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作者 Joseph P. Levitt James R. Degnan +1 位作者 Sarah M. Flanagan Bryant C. Jurgens 《地学前缘:英文版》 CAS CSCD 2019年第5期1669-1683,共15页
Three wells in New Hampshire were sampled bimonthly over three years to evaluate the temporal variability of arsenic concentrations and groundwater age.All samples had measurable concentrations of arsenic throughout t... Three wells in New Hampshire were sampled bimonthly over three years to evaluate the temporal variability of arsenic concentrations and groundwater age.All samples had measurable concentrations of arsenic throughout the entire sampling period and concentrations in individual wells had a mean variation of more than 7 μg/L.The time series data from this sampling effort showed that arsenic concentrations ranged from a median of 4 mg/L in a glacial aquifer well (SGW-65) to medians of 19 μg/L and 37 μg/L in wells (SGW-93 and KFW-87) screened in the bedrock aquifer,respectively.These high arsenic concentrations were associated with the consistently high pH (median ≥- 8) and low dissolved oxygen (median <0.1 mg/L) in the bedrock aquifer wells,which is typical of fractured crystalline bedrock aquifers in New Hampshire.Groundwater from the glacial aquifer often has high dissolved oxygen,but in this case was consistently low.The pH also is generally acidic in the glacial aquifer but in this case was slightly alkaline (median =7.5).Also,sorption sites may be more abundant in glacial aquifer deposits than in fractured bedrock which may contribute to lower arsenic concentrations.Mean groundwater ages were less than 50 years old in all three wells and correlated with conservative tracer concentrations,such as chloride;however,mean age was not directly correlated with arsenic concentrations.Arsenic concentrations at KFW-87 did correlate with water levels,in addition,there was a seasonal pattern,which suggests that either the timing of or multiple sampling efforts may be important to define the full range of arsenic concentrations in domestic bedrock wells.Since geochemically reduced conditions and alkaline pHs are common to both bedrock and glacial aquifer wells in this study,groundwater age correlates less strongly with arsenic concentrations than geochemical conditions.There also is evidence of direct hydraulic connection between the glacial and bedrock aquifers,which can influence arsenic concentrations.Correlations bet 展开更多
关键词 ARSENIC VARIABILITY GEOCHEMICAL time series Age tracers GROUNDWATER age MODELING
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基于脉搏波波形特征参量的成年男性血管年龄预测模型 预览
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作者 王琳琳 王磊 +2 位作者 张晓阳 李倩 张文露 《医疗卫生装备》 CAS 2019年第8期7-11,共5页
目的:寻找与心血管疾病相关性高的无创脉搏波波形指标,并建立有效的用于成年男性的心血管健康的预测模型,对可能诱发的心脑血管疾病进行早期预警。方法:采集6个年龄阶段的健康男性的脉搏波,每个年龄段采集50个样本。分别提取每个样本的... 目的:寻找与心血管疾病相关性高的无创脉搏波波形指标,并建立有效的用于成年男性的心血管健康的预测模型,对可能诱发的心脑血管疾病进行早期预警。方法:采集6个年龄阶段的健康男性的脉搏波,每个年龄段采集50个样本。分别提取每个样本的脉搏波波形参数特征,包括流入时间、流出时间、总搏动时间、快速流入时间、流入时间占比和波形系数,分析其在不同年龄段的差异性。并采用逐步回归分析方法建立年龄与脉搏波波形参数之间的关系。结果:流入时间、流入时间占比和快速流入时间会随年龄的变化存在较为明显的差异,且随着年龄的增长,这3个指标呈现稳定上升的趋势。而流出时间、总搏动时间和波形系数对年龄变化不敏感。建立了血管年龄的预测模型:年龄=-29.9168+437.9004×流入时间(R^2=0.9321,P=0.0018),将高血压患者的脉搏波流入时间代入上述模型,计算得到的血管年龄均大于实际年龄,且年龄差均大于5岁。结论:流入时间、快速流入时间和流入时间占比随年龄变化有较明显且稳定的变化趋势,其与血管弹性、顺应性和僵硬度密切相关,可以作为预测心血管疾病的影响因素。 展开更多
关键词 脉搏波 波形参数 年龄 血管年龄 预测模型
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Time series analysis of mantle cycles PartⅡ:The geologic record in zircons,large igneous provinces and mantle lithosphere 预览
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作者 Kent C. Condie Stephen J. Puetz 《地学前缘:英文版》 CAS CSCD 2019年第4期1327-1336,共10页
Igneous and detrital zircons have six major U/Pb isotopic age peaks in common(2700 Ma,1875 Ma.1045 Ma,625 Ma,265 Ma and 90 Ma).For igneous rocks,each age peak is comprised of subpeaks with distinct geographic distribu... Igneous and detrital zircons have six major U/Pb isotopic age peaks in common(2700 Ma,1875 Ma.1045 Ma,625 Ma,265 Ma and 90 Ma).For igneous rocks,each age peak is comprised of subpeaks with distinct geographic distributions and a subpeak age range per age peak≤100 Myr.There are eight major LIP age peaks(found on≥10 crustal provinces)of which only four are in common to major detrital zircon age peaks(2715 Ma,1875 Ma,825 Ma,90 Ma).Of the whole-rock Re depletion ages,58%have correspo nding detrital zircon age peaks and 55%have corresponding LIP age peaks.Ten age pea ks are fou nd in common to igneous zircon,detrital zircon,LIP,and Re depletion age time series(3225 Ma,2875 Ma,2145 Ma,2085 Ma,1985 Ma,1785 Ma,1455 Ma,1175 Ma,825 Ma,and 90 Ma).and these are very robust peaks on a global scale as recorded in both crustal and mantle rocks.About 50%of the age peaks in each of these time series correspond to predicted peaks in a 94-Myr mantle cycle,including four of the ten peaks in common to all four time series(2875 Ma,1785 Ma,825 Ma and 90 Ma).Age peak widths and subpeak ranges per age peak suggest that mantle events responsible for age peaks are<100 Myr and many<50 Myr in duration.Age peak geographic distributions show three populations(≤1000 Ma,2500-1000 Ma,>2500 Ma),with the number of new provinces in which age peaks are represented decreasing with time within each population.The breaks between the populations(at 2.5 Ga and 1 Ga)fall near the onsets of two transitions in Earth history.The First Transition may represent a change from stagnant-lid tectonics into plate tectonics and the Second Transition,the onset of subduction of continental crust.The major factor controlling geographic distribution of age peaks is the changing locations of orogeny.Before~2 Ga,age subpeaks and peaks are housed in orogens within or around the edges of crustal provinces,mostly in accretionary orogens.but beginning at 1.9 Ga,collisional orogens become more important.The coincidence in duration between magmatic flare-ups in Phanerozoic 展开更多
关键词 Isotopic age PEAKS U/Pb zircon AGES Re depletion AGES Large IGNEOUS provinces Age peak correlation MANTLE cycles
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Peak O<sub>2</sub>Uptake Correlates with Fat Free Mass in Athletes but Not in Sedentary Subjects 预览
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作者 Jasem Ramadan AlKandari Mario Barac Nieto 《健康(英文)》 2019年第1期40-49,共10页
Objective: To characterize relationships between peak O2 uptake (VO2max) and fat free mass (FFM) in adult sedentary and in young and adult athletes. Methods: Healthy adult male sedentary workers or students reporting ... Objective: To characterize relationships between peak O2 uptake (VO2max) and fat free mass (FFM) in adult sedentary and in young and adult athletes. Methods: Healthy adult male sedentary workers or students reporting no regular physical activity in the last six months (n = 61, 31.0 ± 0.95 years) and young (n = 63, 15.8 ± 0.16 years) or adult (n = 85, 25.9 ± 0.48 years) males athletes were studied. Sports were classified according to their MET intensity. Bruce’s treadmill protocol served to measure VO2max. Weight and seven skin-fold thicknesses were used to estimate body density and FFM. Subjects signed informed-consent forms before the tests. Results: The significant correlations (R2 = 0.48, p 2max or of log FFM with log VO2max (R2 = 0.53, p 2 = 0.34 & 0.30), and not significant (R2 = 0.19 & 0.17, p > 0.05) in sedentary subjects. Stepwise multiple regression analysis (R2 = 0.65) indicated that VO2max depended on FFM, heart rates and MET intensity of practiced sport in athletes. In sedentary subjects VO2max was insignificantly (R2 = 0.18) related to flexibility. Discussion: Skin-fold based FFM reliably reflects maximally active muscle mass in young athletes, to a lesser extent in adult athletes but not in adult sedentary subjects. In sedentary, VO2max is often limited by local pain and fatigue and does not reflect the capacity of the oxygen extraction system. In sedentary, varying proportions of surface fat, muscle and bone increase variability in the relationship between skinfolds and FFM. 展开更多
关键词 VO2MAX Lean Body Mass Physical Activity Age Regression Analysis
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1033例在岗职业健康体检人员单次尿检异常影响因素分析
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作者 陈文芬 陈霄峰 管敏昌 《中国卫生检验杂志》 CAS 2019年第7期875-877,共3页
目的调查1033例在岗职业健康人员单次尿常规异常情况,并分析其影响因素。方法釆用干化学对尿液进行检测,共筛查出146例尿检异常者,对其影响因素进行Logistic回归分析。结果单因素Logistic回归分析显示,尿检异常与性别、高血压、年龄、... 目的调查1033例在岗职业健康人员单次尿常规异常情况,并分析其影响因素。方法釆用干化学对尿液进行检测,共筛查出146例尿检异常者,对其影响因素进行Logistic回归分析。结果单因素Logistic回归分析显示,尿检异常与性别、高血压、年龄、工龄、多种职业危害因素呈相关性。多因素Logistic回归分析显示,女性、高血压、年龄51岁~65岁、工龄11年~20年、多种职业危害因素是主要影响因素。结论肾脏病防治重点人群应该包括女性、高血压、年龄51岁~65岁、工龄11年~20年、多种职业危害因素接触者。 展开更多
关键词 尿常规 女性 高血压 年龄 工龄 多种职业危害因素 LOGISTIC回归分析
翻译指令、年龄和英语水平对读后续译质量的影响 预览
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作者 张朦 《蚌埠学院学报》 2019年第4期82-86,共5页
以“续理论”为指导,旨在探讨读后续译对二语水平的促学作用。教学实验通过整群随机抽样的方式对英语专业学生的读后续译成绩进行分析,发现续译作品在一定的翻译指令提示下,质量有明显提升,但翻译指令对读后续译的影响随着年龄和英语水... 以“续理论”为指导,旨在探讨读后续译对二语水平的促学作用。教学实验通过整群随机抽样的方式对英语专业学生的读后续译成绩进行分析,发现续译作品在一定的翻译指令提示下,质量有明显提升,但翻译指令对读后续译的影响随着年龄和英语水平的提高而降低;通过续译翻译指令提示,可明显降低被试者的语法错误和语言负迁移现象;自变量“翻译指令”和“英语水平”之间存在明显的交互作用。 展开更多
关键词 读后续译 翻译指令 年龄 英语水平
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Age-related variations of needles and twigs in nutrient,nonstructural carbon and isotope composition along altitudinal gradients
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作者 TANG Duo-teng PENG Guo-quan ZHANG Sheng 《山地科学学报:英文版》 SCIE CSCD 2019年第7期1546-1558,共13页
The biochemical and physiological properties of alpine woody plants responding to elevation are associated with needles and twigs age.However,the interactions with elevation were not well studied.In this study,we inve... The biochemical and physiological properties of alpine woody plants responding to elevation are associated with needles and twigs age.However,the interactions with elevation were not well studied.In this study,we investigated age-related(current,one-year and two-year old)functional traits of Abies faxoniana in needles and twigs with elevation(2500 m,2750 m,3000 m,3250 m,and 3500 m a.s.l)at the eastern edge of the Tibetan Plateau.The macro-elements(C,N,P,K,Ca,and Mg),nonstructural carbons(soluble sugar,sucrose,and starch)and isotope composition(δ13C)were measured in needles and twigs of adult A.faxoniana trees(breast height diameter about 30 cm).There were significant age,elevation and their interaction effects on these traits(except forδ13C).Compared with twoyear-old needles and twigs,the current and one-yearold tissues possessed higher concentrations of P and K,lower Ca concentrations,as well as a lowerδ13C values and C:P and N:P ratios in needles.The current-year twigs generally had higher sucrose concentration and sucrose:starch ratio than the old ones.This study suggested that more nutrients were invested to young needles and twigs to cope with elevation for A.faxoniana than the old ones. 展开更多
关键词 FIR ELEVATION NUTRIENT Age Needle and TWIG Sub-alpine
开封地区2016年重症手足口病251例情况分析 预览
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作者 王富明 徐倩倩 +1 位作者 李玉萍 郝建华 《齐齐哈尔医学院学报》 2019年第4期471-473,共3页
目的 调查开封市儿童医院2016年儿科重症监护病房(PICU)重症手足口病(HFMD)住院儿童情况,为当地重症HFMD诊治工作提供参考。方法 收集2016年1—12月开封市儿童医院PICU住院的251例HFMD患儿的临床资料进行回顾性分析。结果 HFMD患儿平均... 目的 调查开封市儿童医院2016年儿科重症监护病房(PICU)重症手足口病(HFMD)住院儿童情况,为当地重症HFMD诊治工作提供参考。方法 收集2016年1—12月开封市儿童医院PICU住院的251例HFMD患儿的临床资料进行回顾性分析。结果 HFMD患儿平均年龄为(24±13)个月,4~7个月入院患儿占84.46%(212/251);感染肠道病毒71型(enterovirus 71,EV71)患儿为78.6%(195/248),柯萨奇病毒A16型(Coxsackievirus A16,CA16)为5.6%(14/248),柯萨奇病毒B组(CVB)为52.4%(130/248);死亡病例11例,主要发生在入院前3天(8/11,72.7%),其平均年龄[(20.82±8.69)个月]与好转患儿年龄[(24.08±13.04)个月]无差异(t=1.183,P=0.259)。气管插管机械通气患儿年龄[(21.05±10.67)个月]小于无创呼吸机辅助通气患儿年龄[(25.91±14.00)个月](t=-3.015,P=0.003);PICU住院时间2周以内占84.86%(212/251)。结论 2016年开封地区重症HFMD有较高的死亡率,年龄偏小患儿病情更重,更需要气管插管机械通气呼吸支持;对入院前3天、EV71或CVB感染患儿也需加强警惕。 展开更多
关键词 重症手足口病 儿科重症监护病房 年龄 预后
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锦州地区乙型肝炎病毒DNA检验与年龄性别关系的研究 预览
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作者 王丹丹 黄丹 张蕴莉 《锦州医科大学学报》 CAS 2019年第3期60-62,共3页
目的分析锦州地区人群乙型肝炎病毒(HBV)定量检测和患者年龄性别的关系,为临床患者制定治疗策略提供一定依据。方法收集2016年6月至2018年5月期间来锦州医科大学附属第一医院就诊患者2960例,对其阳性率和病毒定量与患者年龄、性别的关... 目的分析锦州地区人群乙型肝炎病毒(HBV)定量检测和患者年龄性别的关系,为临床患者制定治疗策略提供一定依据。方法收集2016年6月至2018年5月期间来锦州医科大学附属第一医院就诊患者2960例,对其阳性率和病毒定量与患者年龄、性别的关系进行分析。结果2960例患者阳性率60.47%。男性阳性率62.28%(630/1670)大于女性阳性率58.34%(537/1289),χ^2=4.77,P<0.05。通过趋势卡方检验比较各年龄段阳性率,差异具有统计学意义χ^2=32.58,P<0.005,总体呈现下降的趋势。不同年龄段患者高病毒定量例数<30岁年龄组高于31~98年龄组,差异有统计学意义χ^2=48.04,P<0.005。不同年龄段患者低病毒量组差异具有统计学意χ^2=20.42,P<0.05成n字形分布。结论乙型肝炎DNA病毒量在不同年龄、性别都差异具有统计学意义,为临床患者制定治疗策略提供一定依据。 展开更多
关键词 乙型肝炎病毒 年龄 性别
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Vertical Distribution of Soil Pyrogenic Matter: A Review
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作者 Eleanor HOBLEY 《土壤圈:英文版》 SCIE CAS CSCD 2019年第2期137-149,共13页
Alteration of terrestrial biomass during fire produces pyrogenic matter, a large quantity of which is deposited on and may enter soils. The amount of annual burning around the globe implies greater production and stor... Alteration of terrestrial biomass during fire produces pyrogenic matter, a large quantity of which is deposited on and may enter soils. The amount of annual burning around the globe implies greater production and storage of carbon in soil pyrogenic organic matter(pyrOM) than is regularly found in investigations of soil pyrogenic matter. A portion of this unaccounted for pyrogenic material may be translocated to subsurface soil depths, which is frequently excluded from soil investigations, and the presence of subsoil charcoal helps to partially fill this pyrOM gap. In this paper, I discuss the mechanisms for vertical redistribution of pyrogenic matter in soils and develop conceptual models to describe the depth, particle size, and age distribution of pyrogenic matter resulting from different translocation mechanisms. Based on the relationships between pyrogenic matter turnover and translocation, the suitability of pyrogenic matter in soils as an indicator for soil processes is discussed. Deciphering the relationships between pyrogenic matter depth, particle size, and age distribution yields valuable insights into the dynamics of soil forming processes as well as soil pyrogenic matter turnover,which should therefore, be a focus of future studies. 展开更多
关键词 age BLACK carbon charcoal MOBILITY organic MATTER particle size SUBSOIL TRANSLOCATION
Flight behavior of the sycamore lace bug, Corythucha ciliata, in relation to temperature, age, and sex 预览
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作者 LU Shao-hui WEI Mei-cai +2 位作者 YUAN Guo-jun CUI Jian-xin GONG Dong-feng 《农业科学学报:英文版》 SCIE CAS CSCD 2019年第10期2330-2337,共8页
The flight capacity of different ages and sexes of the sycamore lace bug, Corythucha ciliata, was studied at different temperatures using a flight mill system. The results of regression analysis showed a significant e... The flight capacity of different ages and sexes of the sycamore lace bug, Corythucha ciliata, was studied at different temperatures using a flight mill system. The results of regression analysis showed a significant effect of temperature on flight distance (P=0.0082). Temperature did not influence flight duration (P=0.212) or flight speed (P=0.175). The mean flight distance (1 024 m) and mean flight duration were the greatest at 25.2°C. The age of C. ciliata had a significant influence on flight distance (P=0.0005), flight duration (P=0.0005) and flight speed (P=0.026). The 12-d-old adult had the greatest flight distance (887 m), duration (3 875 s) and speed (0.22 m s^–1). Flight distances and flight duration of females were significantly longer than that of males. However, the male had significantly greater flight speed than the female. The insect appears to be capable of long distance flights. The understanding of the optimal age and temperature for the flight of this insect through this study provides a foundation for better management of the insect in China. 展开更多
关键词 Corythucha ciliata FLIGHT capacity tethered FLIGHT TEMPERATURE age and SEX
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