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Effects of Hydrogels on Soil Moisture and Growth of <i>Cajanus cajan</i>in Semi Arid Zone of Kongelai, West Pokot County

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Open Journal of Forestry 2014年第1期4卷 34-37页

作者： Cheruiyot Gilbert Sirmah Peter Ng’etich Wilson Mengich Edward Mburu Francis Kimaiyo Sylvester Bett erick School of Agriculture University of Eldoret Eldoret Kenya School of Natural Resource Management University of Eldoret Eldoret Kenya School of Natural Resource Management University of Eldoret Eldoret Kenya Kenya Forestry Research Institute Londiani Kenya School of Science University of Eldoret Eldoret Kenya

Studies on the effects of hydrogels on soil amendments, moisture conservation and growth of Cajanus cajan in arid and semi-arid lands were carried out. Seedlings of C. cajan were established both in the nursery and in the field with and without hydrogels. In the field, three replications were used with three levels of hydrogels concentration (7 g, 11 g, and 15 g). Control seedlings were established in soils without hydrogels. In the nursery, root collar diameters and heights were measured every two weeks up to eight weeks. Seedlings established without hydrogels in the nursery were transplanted into field soils with none, 7 g, 11 g and 15 g of hydrogels. Root collar diameters and heights were again measured every month for three months. In addition, soil was collected randomly once every month from the base of each seedling and analyzed for soil moisture using standard laboratory procedures. All data were subjected to analysis of variance. The results show that growth in both the height and root collar diameter of the species was significantly different at the three levels of hydrogels. This suggests that use of hydrogels retards plant growth in nursery soils but improves growth in the field. Hydrogels increased soil moisture volume from 8.3% to 10% in H15g level of hydrogels under C. cajan after transplanting. It was concluded that hydrogels do not contribute to growth of seedlings in the nursery but they do so after transplanting. Hydrogels increase soil moisture in the soil, so they are recommended for use in semi-arid lands to boost the survival and growth of seedlings.

关键词： Hydrogels Moisture Growth Semi-Arid Lands

Low-Cost Sensors Calibration for Monitoring Air Quality in the Federal District—Brazil

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Journal of Environmental Protection 2015年第2期6卷 173-189页

作者： erick Frederico Kill Aguiar Henrique Llacer Roig Luís Henrique Mancini Eduardo Neiva Caetano Botelho de Carvalho Institute of Geosciences (IG) University of Brasilia Brasilia Brazil

Critical situations that cannot be solved by conventional approaches (traditional air quality monitoring networks), have the possibility of being managed quickly by a wide network of portable systems with sensors. The purpose of this research was to calibrate and validate low-cost sensors. Pilot indoor and outdoor areas, in the central area of Brasilia (Brazil’s capital city) were chosen for corporative performance evaluation of the sensors. The CO at 99.999% volumetric injection method has been used in a gas test box, among two MiCS-5521 (CO/VOC) sensors, one being new and the other one with a short useful life. The number of injections adopted to each volume (from 1 ml to 6 ml) was 10, rising each sensor’s confidence interval mean. A increase of the injected volume (ml) of CO resulted in significant decrease in a resistance (Ohms), as shown by a good inverse relationship on the interaction of these two variables (r = 0.88), with good measurement accuracy, when compared to the manufacturer’s reference datasheet. Finally, a geospatial management system was built for the pollution data measured by the low-cost sensors.

关键词： Low-Cost Sensors Monitoring Air Quality Calibration of Micro-Sensors MiCS-5521 (CO/VOC) WebGIS

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与“北方美人”来一场幸福的漂泊

商务旅行 2007年第10期 120-127页

作者： Claudie Baran 李亦萌 erick Bonnier

东方快车……穿梭在可口的美食和秀美的风景之间,这列神秘座名副其实的"轨上宫殿"。维多利亚站。在驶入伦敦郊区之前,小火车等待着行色匆匆的旅客将自己的"肚子"填满。列车长不断用尖利的哨声催促着迟来的旅客。这列小火车上布满了恶作... 详细信息

东方快车……穿梭在可口的美食和秀美的风景之间,这列神秘座名副其实的"轨上宫殿"。维多利亚站。在驶入伦敦郊区之前,小火车等待着行色匆匆的旅客将自己的"肚子"填满。列车长不断用尖利的哨声催促着迟来的旅客。这列小火车上布满了恶作剧性质的涂鸦作品,而就在不远处,停靠着一列长蛇般的火车,它便是东方快车中最具代表性的"北方美人号"。

关键词：小火车长蛇克里斯蒂羊毛制品《大宪章》拉姆斯可真独奏音乐会大城市大侦探

Recombinant human zona pellucida proteins ZP1, ZP2 and ZP3 co-expressed in a human cell line

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Asian Journal of Andrology 2004年第1期6卷 3-13页

作者： MirjanaMartic erick.Moses TimE.Adams DeYiLiu DebraA.Gook ClaireGarrett MarjorieE.Dunlop GordonH.W.Baker DepartmentofObstetricsandGynaecology，UniversityofMelbourne DepartmentofMedicine UniversityofMelbourne PregnancyResearchCenterRoyalWomen''sHospital ReproductiveServices RoyalWomen''sHospitalandMelbourneIVE CSIRODivisionofHealthScienceandNutrition MelbourneAustralia

Aim: To produce biologically active recombinant human (rh) ZP proteins in a human cell for use in sperm function tests. Methods: The human embryonic kidney cell line 293T was employed to produce rhZP1, rhZP2 and rhZP3 proteins individually and together by co-expression. Presence of these proteins in the culture medium and cell lysate was assessed by Western blotting analysis. The effect of the recombinant proteins on the human AR was assessed. Results: RhZP2 and rhZP3 were secreted into the culture medium, whereas rhZPl was found only in the cell lysate. Interestingly, when all zona pellucida proteins were co-expressed in the same cells, rhZPl was also secreted into the culture medium. However, despite the presence of all three ZP proteins in sufficient concentration and evidence of heavy glycosylation on gel electrophoresis, biological activity to induce the AR was not observed. Conclusion: RhZP1, rhZP2 and rhZP3 were successfully expressed in the human embryonic kidney cell line 293T. It appears that an interaction amongst these proteins may be required for release of rhZPl from the cell. Although this approach is not satisfactory for producing active human ZP proteins, it makes a significant contribution to the understanding of the structural and functional characteristics of the ZP proteins.

关键词： acrosome reaction glycosylation human cell line recombinant proteins zona pellucida

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电影物语:好老师,坏老师

新东方英语（中学版） 2007年第9期 4-8页

作者： erick Peterson 雷起凤

电影中的老师和生活中的老师有哪些相似之处,又有哪些不同呢?老师指导我们的学业,并指引我们的人生。他们可能待人友善、乐于助人,也可能愚蠢或者冷酷。

关键词：老师电影师生关系相似之处友善个性学生性格莫扎特生活中校长

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李连杰:被忽视的超级明星

新东方英语（中学版） 2008年第Z1期 76-79页

作者： erick Peterson 陈建华

你能想象当今亚洲乃至世界著名的演员也会被人忽视和误解吗?成功不是千篇一律的。只要凭着坚定不移的信念和坚持不懈的努力,终能实现自己的梦想。

关键词：电影明星忽视误解演员功夫信念世界著名影片英雄

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金字塔的现代表情新 Metzo学院大楼

室内设计与装修 2008年第5期 76-81页

作者： erick Van Egeraat 丁小真

从本世纪初起，荷兰建筑的整体水平一直高居欧洲前列，并以先锋派的姿态倡导建筑的时代精神，产生深远的国际影响，大批优秀的荷兰建筑师涌现出来。erick Van Egeraat是荷兰很成功的Mecanoo建筑事务所的创始人之一。他曾经离开Mecanoo... 详细信息

从本世纪初起，荷兰建筑的整体水平一直高居欧洲前列，并以先锋派的姿态倡导建筑的时代精神，产生深远的国际影响，大批优秀的荷兰建筑师涌现出来。erick Van Egeraat是荷兰很成功的Mecanoo建筑事务所的创始人之一。他曾经离开Mecanoo，创办了他自己的建筑事务所，也很成功。目前他的实践活动主要在鹿特丹，这里不仅是其事务所的总部所在地，也是他设计生涯的开始之地。erick Van Egeraat的整体规划设计和建筑设计的创意经常在比赛中获奖，而且私人客户也很欣赏他的作品，在他的作品中，总是考虑到丰富的细节和运用全新的建筑形式。

关键词：建筑事务所大楼学院表情建筑设计建筑师 Metzo学院大楼

非洲疾病谱变迁与中国参与非洲卫生治理的再思考

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中国卫生政策研究 2020年第4期13卷 52-58页

作者：富晓星程峰 erick Josephat Mgina 齐腾飞 Omar Juma Gichagua Mary 高良敏中国人民大学社会学理论与方法研究中心、中国人民大学人类学研究所北京100872 清华大学公共健康研究中心北京100084 坦桑尼亚国家医学研究所穆希比利中心坦桑尼亚达累斯萨拉姆市3436 清华大学社会学系北京100084 坦桑尼亚依法卡拉健康研究所坦桑尼亚巴加莫约65013 肯尼亚加通杜五级医院肯尼亚吉安布郡19859 清华大学国际与地区研究院北京100084

随着慢性病在非洲的崛起,其疾病谱发生了变迁,与传染病同为疾病双负担。这一态势具有社会文化的复杂性和应对的长期性两个重要特征,挑战与机遇并存,也使得中国参与非洲卫生治理有了更多可能。本文在回顾中国对非医疗援助与合作历史后,... 详细信息

随着慢性病在非洲的崛起,其疾病谱发生了变迁,与传染病同为疾病双负担。这一态势具有社会文化的复杂性和应对的长期性两个重要特征,挑战与机遇并存,也使得中国参与非洲卫生治理有了更多可能。本文在回顾中国对非医疗援助与合作历史后,发现慢性病领域尚未受到关注。在重新审视中国参与非洲卫生治理意义后,发现参与非洲慢性病治理挑战重重,但可积极争取主动权,可使中国摆脱西方后继者的身份陷阱和西方话语权障碍。同时,树立正确的利义观,辩证认识参与非洲慢性病治理的积极意义和潜在市场价值。因此,中国应在认识上、行动上和文化互补上取得统一,超越单纯的援助论、合作论,夯实学理基础,探讨更多可能。

关键词：疾病谱变迁全球卫生治理中国非洲

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科技公司崭新的解决方案

财经文摘 2006年第2期 82-83页

作者： erick Schonfeld 赵丽娜（编译）

当新年来临之际，每个人都会给自己和周围的人一些承诺。但对于科技公司来说，他们又在期待什么呢？以下来自新年的科技公司全新的解决方案绝对不是预测，是这些公司凭借自身能力完全可以企及的新年目标。

关键词：科技公司移动电话 Google 无线通讯