DATA EXTRACTION: Totally 43 articles about the close relationship of the proliferation and differentiation of neural stem cells with gene regulation, growth factors, cell factors and microenvironment signals were collected, and 31 met the inclusive criteria.

DATA EXTRACTION: Totally 54 studies about the signal transduction in proliferation and differentiation of Schwann cells were collected and 30 were included, in which there were 14 about the proliferation of Schwann cells, 12 about the differentiation of Schwann cells and 4 about other related signal transduction.

Investigation results showed that altogether 20 species of Thaliacea appeared in the investigation areas, 16 of them in summer, 15 in spring, 11 in autumn and 9 in winter.

(2) on average,when the R&D expenditure of research universities increases 1%,the patent output of the capital region will increase 0.3%,and the patent output of the capital region increases 0.6% percent altogether in three years;

Results The SLN was identified in 97(89.8%)of patients using this method,altogether 180 SLNs were harvested,on average 1.9 SLNs were examined and 12.1ALNs were removed.

Results Altogether 89 639 examples were determined and 4902 HBsAg positives were detected with a positive rate of 5.47%(4 902/89 639) and the HBeAg positive rate was 1.58%(1 397/89 639).

Recombinant Fowlpox Viruses Expressing HA from Subtype H9N2 of Avian Influenza Virus and/or Chicken Type Ⅱ Interferon and Their Protective Efficacies Against Homologous Challenge in Chickens

Preparation of the agonist/antagonist monoclonal antibodies against B7 and CD28 molecules and analysis of their effects on costimulatory signals transduction

The first one is a conjecture of Ian Hughes which states that iff1, ..., fn are primary invariants of a finite linear groupG, then the least common multiple of the degrees of thefi is a multiple of the exponent ofG.

This paper studies intersection theory on the compactified moduli space ${\mbox{$\cal M$}} (n,d)$ of holomorphic bundles of rank n and degree d over a fixed compact Riemann surface $\Sigma$ of genus $g \geq 2$ where n and d may have common factors.

For Fourier-bandlimited symbols, we derive the expected formulae for composition and commutators and construct an orthonormal basis of common approximate eigenvectors that could be used to study spectral theory.

For Fourier-bandlimited symbols, we derive the expected formulae for composition and commutators and construct an orthonormal basis of common approximate eigenvectors that could be used to study spectral theory.

More generally, these results apply both to Gabor frames and to systems of Gabor molecules, whose elements share only a common envelope of concentration in the time-frequency plane.

The flat rank of a totally disconnected locally compact group G, denoted flat-rk(G), is an invariant of the topological group structure of G.

We also show that for any integer n ≥ 1 there is a simple, compactly generated, locally compact, totally disconnected group G, with flat-rk(G) = n and which is not linear.

A visible action on a complex manifold is a holomorphic action that admits a J-transversal totally real submanifold S.

It is shown that for certain totally disconnected fractals, function spaces may be characterized by means of the magnitude of the wavelet coefficients of the functions.

The study also shows that higher orders are almost totally suppressed by MgF2 filter when the wavelength ranges between 115-140 nm.

Altogether 19 groups and 59.03% of total individuals were found in the bottom layer, while only 8 groups and 5.35% of the total individuals in the top.

Altogether, splenic surgery is a new and prosperous discipline, and it is a tremendous stage for young surgeons to be part of.

Altogether, these results indicate that trehalose metabolism in S.

It is possible that they altogether represent a novel class (or classes) of δ-endotoxin receptors.

Some surfaces vanish altogether (such as the contact surfaces in application of the "particle-in-cell" method), while others, such as second shocks, can be identified by investigation of the flow parameters in the "suspicious" region.

1. The conformity of the pattern of Cicindela anchoralis to what has been considered typical of the genus becomes in- telligible if the middle band, which is undoubtedly the most variable of the markings of this species, is assumed to have shifted forward and to have developed extensions both cephaled and caudad along the lateral margin and on the disc of the eIytron.2. The variation of the pattern is of the continuous type and proceeds in one principal direction. As expected, some in- dividuals depart from...

1. The conformity of the pattern of Cicindela anchoralis to what has been considered typical of the genus becomes in- telligible if the middle band, which is undoubtedly the most variable of the markings of this species, is assumed to have shifted forward and to have developed extensions both cephaled and caudad along the lateral margin and on the disc of the eIytron.2. The variation of the pattern is of the continuous type and proceeds in one principal direction. As expected, some in- dividuals depart from this main series, in one way or another and ten such sub-types have been recognized in this study. The range of variation is very considerable.3. The male sex is found to have a greater tendency to lose its pigmentation, and this fact is interpreted as indicating its having a more variable middle band.4. Mating between the different types is entirely at random, the frequency of any given combination is apparently a function of the abundance of the individuals in a given class.5. In describing the elytral pattern of this species, Chevrolat (1845) used these words: "vitta anchorali, cum lienola pone humerum (femina amplioribus); cupreis". He evidently had regarded as typical the pattern showing fullest pigmentation. The present study shows, on the other hand, that such a pat- tern, while most primitive, is not the most representative. The typical pattern is to be sought in Class Ⅳ, the model class. This last remark certainly has wider application and merits the consideration of taxonomists describing highly variable forms.

The differential equation for relaxation oscillation with external impressed e.m.f. is written as

张弛振动之代表算式为一非直线的二次微分方程式在数学上至今未获完全解答颇耳氏(Van der Pol)曾以半解算半作图之方法研究强弛振动,但共方法仅能用於无外加控制电压之情形下故控制影响未能解说本文叙述用罗勃氏(A.A.Bobb)作图方法解析张弛振动之问题,自由振动与控制振动均可应用文中叙明通常之起始条件如何不适宜於作图及如何试设一边界条件而得正确之结果用此方法张弛振动之普通特性与频率减倍之现象,均能解说控制波与强弛振动波之相的关系,亦曾加以讨论所设对称的三次抛物线形之振动特性,未能完满解释偶谐控制波之控制功效

Thirty eighr lower levels, and seventy five higher levels of Ce II have been obtained. The analyzed array contains 925 lines which include a large number of stronger lines. The lowest level is believed to be df(1G°4)6s2G°31/2. It is also shown that the determination of g values, or the actual term designations, requires an extensive measurement of Zeeman effect.