搜索结果: 1-9 共查到“20-year”相关记录9条 . 查询时间(0.031 秒)
Striking 20-year grasshopper declines tied to quality of prairie grasses（图）
20-year grasshopper declines tied quality prairie grasses
2020/3/13
A new study shows that grasshopper numbers have declined more than 30% in a Kansas grassland preserve over the past two decades. The results were published in the journal Proceedings of the Natio...
Modifying the elastomechanics of the stem and the crown needle mass distribution to affect the diameter increment distribution: A field experiment on 20-year old Abies grandis trees
Abies grandis elastomechanics field experiment stress strain diameter increment distribution
2015/2/2
In the spring of 2000, field experiments were begun on three 20-year old grand fir (Abies grandis) to influence the elasto-mechanical behavior of the stem, as well as the distribution of the assimilat...
Cutaneous Malignant Melanoma in Central Iran: A 20-Year Study
Cutaneous Malignant Melanoma Epidemiology Prevalence Survival Rate
2015/10/8
Background: Skin cancers are the most common cancers around the world. Cutaneous malignant melanoma (CMM) is the malignancy of melanocytes that are mainly located in the skin and mucous membranes.
A 20-Year Perspective on Preparation Strategies and Career Planning of Pharmacy Deans
dean career planning
2018/5/24
Objective. To provide a longitudinal description of the variety of career paths and preparation strategies of pharmacy deans.
Methods. A descriptive cross-sectional study design using survey research...
Labor Rights in the Generalized System of Preferences:A 20-Year Review
Labor Rights Generalized System of Preferences 20-Year Review
2009/11/4
In the fall of 1982, a small group of labor, religious, and human
rights activists began charting a new course for human rights and
workers’ rights in American trade policy.The coalition that took s...
Monoplace hyperbaric chamber use of U.S. Navy Table 6: a 20-year experience
Decompression Illness Arterial Gas Embolism Hyperbaric Chamber Monoplace demand regulator oxygen air ventilator Sechrist 500A HYPERBARIC MEDICINE oxygen toxicity claustrophobia
2009/6/2
We report a 20-year experience at LDS Hospital, Salt Lake City, UT using the U.S. Navy Treatment Table 6 (TT6) in an oxygen-filled monoplace hyperbaric chamber (1985-2004). Air breathing was provided ...
Is Development Really the Best Contraceptive?：A 20-year Trial in Comilla District, Bangladesh
Contraceptive Bangladesh
2009/4/22
This article examines which public programmes and which socioeconomic development indicators have had an impact on contraceptive practices and fertility in a selected group of villages in Comilla dist...
Variation in Growth of 20-Year-Old Provenance Trial of Sitka spruce（Picea sitchensis（Bong.）Carr.）in Great Britain
Sitka Spruce Site-Seed Origin-Provenance Growth Rate-Tree Volume-Tree Diameter at Breast Height
2009/1/14
Variation in growth of the cambial age (tree diameter) and tree volume was investigated in eight seed origins of Sitka spruce Picea sitchensis (Bong.) Carr.) grown at two sites in Great Britain. The ...
A 20-Year Follow-up of Signs and Symptoms of Temporomandibular Disorders and Malocclusions in Subjects With and Without Orthodontic Treatment in Childhood
Temporomandibular disorders Malocclusion Orthodontic treatment
2008/12/17
This investigation analyzes the influence of orthodontic treatment on signs and symptoms of temporomandibular disorders (TMDs) and different malocclusions during a 20-year period. Originally, 402 ...