Nature and Science

ISSN 1545-0740

(Quarterly, Started in 2003)

Volume 2 - Number 4 (Cumulated No. 5), December 12, 2004

Cover Page, Content, Introduction, Call for Papers

CONTENTS

1 The New Concepts to Big Bang and to Black Holes:Both Had No Singularity at All (Part 1)

Dongsheng Zhang

11 Concept and Protocol to Isolate Cholesterol-reducing Bacteria from Carnivores

Hongbao Ma

18 Patient Referral at the Grass-roots Level in Pakistan

Habib Ahmed Afsar, Muhammad Younus

28 Preparation and Structure of a Novel Crystalline Adduct of Two Organotin Compounds [Ph₂Sn-SnPh₂•(μ-PhCO₂)₂] and (Ph₃Sn-SnPh₃)

Bin Zhao, Fan Li Lu, Feng Qin Wang, Jin Chao Tao

34 Study on the PPE Model Based on RAGA to Evaluating the Water Quality

Qiang Fu, Wei Zu

39 The Creation of Management System, Water Property Rights and Economic Results Research of the Small Irrigative Regions in China

Yonggang Xie, R. N. Yadava

49 Research on the Storage Methods of Lactic Acid Bacteria Strains Separated from DVS

Yanfen Liu，Xuejun Gao, Yuting Cong, Yahui Peng, YingLiu

54 Agricultural Mechanization Contribution Rate Calculation Software Package Development

Xiaojie Zong

57 Control of the Behavior Dynamics for Motion Planning of Mobile Robots

Xingjian Jing, Yuechao Wang, Dalong Tan

65 Alfalfa Drying Properties and Technologies – in Review

Haiqing Wu

68 Regression Analysis for Mapping Dynamic Trait QTL in Outbred Population

Huijiang Gao, Runqing Yang, Wenzhong Zhao, et al.

79 The Effect of Nitrogen Level on mMain Nutrient of Sugar Beet

Baiyan Cai, Jingping Ge

84 Discussion on Intellectual Property’s Private Right Nature

Wenjun Liu

87 The Relationship Between Ownership Structure and Firm Performance: an Empirical Analysis over Heilongjiang Listed Companies

Ping Jiang

91 Comprehensive Evaluating Model Based on Coefficient of entropy and Grey relating Degree to Underground Water Quality

Xianqi Zhang，Chuang Liang，Huiqing Liu