自然周期与人工周期方案264个冻融胚胎移植临床结局比较

目的:比较自然周期与人工周期内膜准备方案冻融胚胎移植(F-ET)的临床结局。方法:264个F-ET周期,其中自然周期冻融胚胎移植180周期,人工周期冻融胚胎移植84周期,比较各组患者年龄、不孕年限、基础内分泌(FSH、LH、E2)水平、移植日内膜厚度、平均移植胚胎数、移植胚胎级别、胚胎种植率、生化妊娠率、临床妊娠率、流产率、多胎率、分娩率等指标,并比较移植日不同子宫内膜厚度对临床结局的影响。结果:胚胎种植率、生化妊娠率、临床妊娠率、流产率、多胎率分别为:自然周期组29.4%、51.1%、82.1%、13.4%、16.4%;人工周期组31.3%、47.6%、80.0%、13.3%、16.7%,两组间比较均无统计学意义(P>0.05)。结论:自然周期和人工周期方案在F-ET中的临床结局相似。

Prediction of the Hualian Earthquakes in Taiwan and an Extended Discussion on the Method of Commensurability

The method of commensurability was used by the authors to predict the great earthquake of magnitude 7.5 that occurred on March 31,2002 in Taiwan 70km away from Hualian. Analyzing the earthquakes of magnitude≥7.0 which occurred in the Hualian area of Taiwan within the 20th century, the authors discovered that the occurrences of the earthquakes are commensurable. The earthquakes of magnitude 7.6 which occurred in Hualian of Taiwan, on September 20th, 1999 and of magnitude 7.5 which occurred 70 km away from Hualian, on March 31th, 2002 appeared at the commensurable point of K=2 and the period times the golden section, respectively. An extended discussion is carried out on the method of commensurability and its implied physical significance, especially on the contribution of the commensurable periodic extension made by Prof. Weng Wenbo.

Dynamics and Relationships of Ca,Mg,Fe in Litter,Soil Fauna and Soil in Pinus koraiensis-Broadleaf Mixed Forest

The Liangshui Natural Reserve in Heilongjiang Province of China was selected as the study area. The authors collected the samples of forest litter （Tilia amurensis, Fraxinus mandshurica, Pinus koraiensis, Acer mono, Betula costata, and mixed litter）, soil in humus horizon （0--5cm） and soil horizon （5-20cm）, and soil macrofauna （Oligochaeta, Geophiloporpha and Juliformia） from 2001 to 2002. The role of soil macrofauna in the material cycle was analyzed through comparing the macro-element contents among various parts of the subsystems and using enrichment index （El）. The results indicate that dynamic changes of various litters are very complicated. The contents of Fe in each kind of litter increase firstly, and then decrease in the study period. The changes of macro-element contents are greater in the broad-leaf litter than in the coniferous litter, and the mixed litter is in the middle level, but the differences among them are not significant. The contents of Mg and Fe in humus are higher than those in soil, but the contents of Ca in soil are higher than that in humus. The dynamic changes of macro-element contents in soil and soil fauna are not consistent with those in litter. The diplopod presented obvious enrichment of Ca and Mg （E1〉1）, but it does not significantly enrich Fe. Earthworm has a stronger enrichment ability of Fe than diplopod and scolopendra, but E1〈1. Soil fauna can make great influences on the material cycle of the subsystems.

Optimal control of natural resources in mining industry

The paper focuses on the optimal control of natural resources in mining industry. The purpose is to pro- pose an optimal extraction series of these resources during the lifetime of the Mine＇s maintenance. Fol- lowing the proposed optimal control model, a sensitivity analysis has been performed that includes the interest rate impact on the optimal solution. This study shows that the increasing of the interest rate sti- mulates faster extraction of the resources. The discounting factor induces that the resource has to be extracted faster hut this effect is counterbalanced by the diminishing returns of the annual cash flow. At higher parameters of ＂alpha＂ close to one of the power function about 80% from the whole resource will be extracted during the first 4 years of object/mine maintenance. An existence of unique positive root with respect to return of investment has been proposed and proved by two ways： by the ＂method of chords＂ and by using specialized software.

Implementation of Action Research to Challenge Poverty of Local Communities in Forest Protection Area

Forest land including forest protection areas in Indonesia have been degraded due to poverty of local communities who live in the surrounding areas. They tend to destroy the forest and are less attentive to forest conservation causing conflict between local community and government. Forest protection areas are very fragile and at risk from natural disaster, mainly in small islands. Natural resources management in small islands needs to be done properly. Therefore, a research has been done for local communities in the Gunung Sirimau forest protection area, Ambon, with objectives to increase income in local communities and knowledge of forest conservation. This study used the action research method. The results of this study showed that income of local communities in three demplots increased by IDR 3,966,000 （in cycle 1）, IDR 20,107,000 （in cycle 2） and IDR 25,897,000 （in cycle 3）. Unfortunately, their knowledge regarding forest conservation and tree maintenance, both in theory and practice is still low. A lot of effort is needed to increase their knowledge in the next action research. The effort to increase income of local communities and its knowledge of forest conservation should be done step by step. If their knowledge is sufficient, promotion of the environmental service of forest protection areas through carbon trade implementation can be carried out.

To a Question about Forecasting Number of Micromammalia （Rodentia）

In the present study, the data for population dynamics of micromammalia in Dnipropetrovs＇k Region in 1957-1999 and Dnipro-Orel＇s Natural Reserve at 1991-2009 are adduced. With the purpose to drawing up of the long-term forecast at number are analyzed long-term lines of number on background kind＇s fine micromammals of dominant group. The analysis of long standing rows of number small mammals and comparison data with Wolf number were demonstration, which indicate that dynamic of number phone species （and dominant in particular） carry a cyclic character and contact with 11-year cycles of sun activity. Consequently, it was clearing up hidden periodical in dynamic of number mouse rodents. By that observation was dependence from cycles of sun activity. Probably, that in 2012 year, before peak of sun activity in 2013, next high increase about the number of small mammals for maxima （＂outbreak＂ mass reproduction is a peak ＂big wave＂） will take place.

Periodic tables of diatomic and triatomic molecules

The Mendeleev periodic table of atoms is one of the most important principles in natural science. However, there is shortage of analog for molecules. Here we propose two periodic tables, one for diatomic molecules and one for triatomic molecules. The form of the molecular periodic tables is analogous to that of Mendeleev periodic table of atoms. In the table, molecules are classified and arranged by their group number G, which is the number of valence electrons, and the periodic number P, which represents the size of the molecules. The basic molecular properties, including bond length, binding energy, force constant, ionization potential, spin multiplicity, chemical reactivity, and bond angle, change periodically within the tables. The periodicities of diatomic and triatomic molecules are thus revealed. We also demonstrate that the periodicity originates from the shell-like electronic configurations of the molecules. The periodic tables not only contain free molecules, but also the "virtual" molecules present in polyatomic molecules. The periodic tables can be used to classify molecules, to predict unknown molecular properties, to understand the role of virtual molecules in polyatomic molecules, and to initiate new research fields, such as the periodicities of aromatic species, clusters, or nanoparticles. The tables should be of interest not only to scientists in a variety of disciplines, but also to undergraduates studying natural sciences.