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1.
中国阳蝇属一新种记述(双翅目:蝇科)   总被引:2,自引:0,他引:2  
记述采自宁夏回族自治区的阳蝇属一新种,定名为六盘山阳蝇Helina liupanshanensis Yang et Ma,sp.nov.。模式标本保存于辽宁省卫生防疫站。新种与中国青海省的玉树阳蝇Helina yushuensis Sun,Sun et Ma,1998近缘,但新种的额较狭,翅前鬃缺如,腹部背板无正中条,第5腹板呈方形等可以区别。  相似文献   

2.
中国阳蝇属一新种记述   总被引:1,自引:1,他引:0  
本文记述自黑龙江省哈尔滨市(太阳岛)采到的阳蝇属一新种,哈尔滨阳蝇Helina harbinensis sp.nov.模式标本存于黑龙江省卫生防疫产。  相似文献   

3.
四川丽蝇族三新种:双翅目:丽蝇科   总被引:3,自引:0,他引:3  
冯炎 《动物分类学报》1998,23(3):328-332
1980-1994年在四川一些地区采获的蝇类标本中,发现丽蝇族Calliphorini3新种,分别命名为二郎山蚓蝇Onesia erlangshanensis sp.nov.花蚓蝇Onesia flora sp.nov.大叶陪丽蝇Bellardia megaloba sp.nov.,模式示本存于作者所在单位。  相似文献   

4.
四川省阳蝇属三新种:双翅目:蝇科   总被引:1,自引:0,他引:1  
邓安孝  冯炎 《四川动物》1995,14(4):139-143
阳蝇属三新种,双鬃阳蝇,新种Helinaduplicisetasp.nov;大斑阳蝇,新种Helinamagnimuculatasp.nov。欢愉阳蝇,新种Heliniahestasp.nov。模式标本I号存华西医科大学,Ⅱ,Ⅲ号存在于雅安地区卫生防疫站。  相似文献   

5.
太白山木蚜蝇亚科二新种   总被引:1,自引:0,他引:1  
本文中国木蚜蝇亚科二新种;即太白山木蚜蝇Xylota tabaishanensis sp.nov.及江氏铜木蚜蝇Chalcosyrphus (xylotina)jiangi sp.nov,模式标本保存于上海农学院昆虫标本室。  相似文献   

6.
本文记述采自我国山西省的棘蝇属Phaonia R。-D。,1830一新种:方山棘蝇Phaonia fangshanensis,sp.nov。模式标本保存在沈阳师范学院昆虫研究所。  相似文献   

7.
中国四川蝇科五新种(双翅目)   总被引:8,自引:2,他引:6  
记述采自中国四川雅安地区及附近山区蝇科5新种:亮绿翠蝇Neomyia nitelivirida,sp.nov.;名山妙蝇Myospila mingshanana,sp.nov.;广叶阳蝇Helinaplatycerca,sp.nov.;西南阳蝇Helina xinanana,sp.nov.;圆尾圆蝇Mydaea discocerca,sp.nov.。模式标本存北京军事医学科学院医学昆虫标本馆。  相似文献   

8.
川藏地区棘蝇属六新种(双翅目:蝇科)   总被引:2,自引:0,他引:2  
本文报道川藏地区棘蝇6新种,1.暗基棘蝇Phaonia nigricoxa sp.nov,2.宽条棘蝇Phaonia latistriata sp.nov.3.似唇棘蝇Phaonia chilitica sp.nov,4.瘤叶棘蝇Phaonia tuberosuratyla sp.nov.,5.茂汶棘蝇Phaonia maowerensis sp.nov.6.平叶棘蝇Phaonia flatice  相似文献   

9.
中国四川省有瓣蝇类三新种:双翅目:麻蝇总科,蝇总科   总被引:3,自引:0,他引:3  
冯炎 《昆虫分类学报》1999,21(2):138-142
本文报道四川省有瓣蝇类3新种,小口瘦粉蝇Dexopolleniaparviostiasp.nov(丽蝇科)齿腹粪蝇Scathophagaodontosternitasp.nov(粪蝇科),橙须重毫蝇Dichaetomyiapalpiaurantiacasp.nov(蝇科)模式标本存北京军事医学科学院医学昆虫标本馆。  相似文献   

10.
中国齿股蝇属三新种(双翅目:蝇科)   总被引:1,自引:0,他引:1  
本文报道了中国四川省齿股蝇属Hydrotaea R。-D。,1830三新种;长鬃齿股蝇H.logisteta,sp.nov.;钝齿股蝇H.obtusisteta,sp.nov.l类邻齿股蝇H.affinoides,sp.nov.模式标本存在北京军事医学科学院医学昆虫标本馆。  相似文献   

11.
The goal of this article was to establish reference ranges of the concentration of trace elements in human serum and to compare these results with those reported by other authors. We describe the sample preparation and measurement conditions that allow the rapid, precise, and accurate determination of Al, As, B, Be, Cd, Co, Cu, Fe, Li, Mn, Mo, Ni, Rb, Se, Sr, and Zn in human serum samples (n=110) by inductively coupled plasma-mass spectrometry (ICP-MS). Accuracy and precision were determined by analyzing three reconstituted reference serum samples by comparison with other methods and by the standard addition procedure. The advantages of the ICP-MS method include short time of analysis of the elements mentioned, low detection limit, high precision, and high accuracy. Disadventages include a high risk of contamination due to the presence of some of the elements of interest in the environment, the relatively delicate sample handling, and the high cost of the equipment.  相似文献   

12.
Summary Concentration of N, P, K, Ca, Mg and S in summer groundnut crop was higher than in kharif while Zn, Fe, Mn and Cu contents were higher in summer crop. Kernel's N, P and Zn; Leaflet's Ca and Mn; Stem's K and Fe; Root's S and Cu and Petiole's Mg contents were highest. Shell's N, P, K, Mg, S, Zn and Cu; Kernel's Ca, Fe and Mn contents were the least. N, P, K, S, Zn and Cu concentrations decreased linearly as the crop grew. Ca, Mg, Fe and Mn concentrations did not display any distinct pattern. Ca concentration was positively correlated with pod yield in both the seasons.  相似文献   

13.
This report attempts to formulate reference ranges of elemental concentrations for 15 trace elements in selected human tissues and body fluids. A set of samples consisting of whole blood, blood serum, urine, milk, liver, and hair were chosen and considered for 15 elements of biological significance: As, Cd, Co, Cr, Cu, F, Fe, I, Hg, Mn, Mo, Ni, Pb, Se, and Zn. The results represent wholly or partially data received from 40 countries of the global regions of Africa, Asia, Europe, North, South, and Central America, Australia, and New Zealand. This survey, even if qualitative, has been useful in demonstrating certain trends of trace-element scenarios around the world. It is of course recognized that both diet and environment exert a strong influence on the distribution pattern of several elements, such as As, Cd, Mn, Pb, Se, and Zn. A limited comparison of the available information on soil status of different countries reflected some interesting associations for elements, such as Mn and Zn. Importantly, this study revealed that only a few countries were in a position to identify a reasonable amount of data on samples requested for this project. Regretably, for a number of countries, any dependable data for even such essential elements as Cu, Fe, and Zn were not available. In view of the nutritional importance of many elements, the time is ripe for concerted efforts by intergovernmental agencies to initiate investigations or commission task forces/projects to generate reliable reference data for selected global regions, which sadly lack data of any kind at present.  相似文献   

14.
A new polynitro cage compound 2, 4, 6, 8, 10, 12, 13, 14, 15-nonanitro-2, 4, 6, 8, 10, 12, 13, 14, 15-nonaazaheptcyclo [5.5.1.1(3,11).1(5,9)] pentadecane (NNNAHP) was designed in the present work. Its molecular structure was optimized at the B3LYP/6-31 G(d,p) level of density functional theory (DFT) and crystal structure was predicted using the Compass and Dreiding force fields and refined by DFT GGA-RPBE method. The obtained crystal structure of NNNAHP belongs to the P-1 space group and the lattice parameters are a = 9.99 ?, b = 10.78 ?, c = 9.99 ?, α = 90.01°, β = 120.01°, γ = 90.00°, and Z = 2, respectively. Based on the optimized crystal structure, the band gap, density of state, thermodynamic properties, infrared spectrum, strain energy, detonation characteristics, and thermal stability were predicted. Calculation results show that NNNAHP has detonation properties close to those of CL-20 and is a high energy density compound with moderate stability.  相似文献   

15.
The unitary conductances and permeability sequences of the rat connexin40 (rCx40) gap junction channels to seven monovalent cations and anions were studied in rCx40-transfected neuroblastoma 2A (N2A) cell pairs using the dual whole cell recording technique. Chloride salt cation substitutions (115 mM principal salt) resulted in the following junctional maximal single channel current-voltage relationship slope conductances (γj in pS): CsCl (153), RbCl (148), KCl (142), NaCl (115), LiCl (86), TMACl (71), TEACl (63). Reversible block of the rCx40 channel was observed with TBA. Potassium anion salt γj are: Kglutamate (160), Kacetate (160), Kaspartate (158), KNO3 (157), KF (148), KCl (142), and KBr (132). Ion selectivity was verified by measuring reversal potentials for current in rCx40 gap junction channels with asymmetric salt solutions in the two electrodes and using the Goldman-Hodgkin-Katz equation to calculate relative permeabilities. The permeabilities relative to Li+ are: Cs+ (1.38), Rb+ (1.32), K+ (1.31), Na+ (1.16), TMA+ (0.53), TEA+ (0.45), TBA+ (0.03), Cl (0.19), glutamate (0.04), and NO3− (0.14), assuming that the monovalent anions permeate the channel by forming ion pairs with permeant monovalent cations within the pore thereby causing proportionate decreases in the channel conductance. This hypothesis can account for why the predicted increasing conductances with increasing ion mobilities in an essentially aqueous channel were not observed for anions in the rCx40 channel. The rCx40 effective channel radius is estimated to be 6.6 Å from a theoretical fit of the relationship of relative permeability and cation radius.  相似文献   

16.
17.
The variation with age of the 18 trace element mass fractions and some histological characteristics of intact prostate glands of 50 subjects aged 0–30 years was investigated by instrumental neutron activation analysis, inductively coupled plasma atomic emission spectrometry, and a quantitative morphometric analysis. Mean values ± standard error of the mean (M ± SΕΜ) for the mass fractions (in milligrams per kilogram wet tissue) of these trace elements in pre-puberty were: Al 28.5 ± 9.0, B 0.40 ± 0.11, Ba 1.48 ± 0.44, Br 10.5 ± 1.5, Ca 241 ± 30, Cl 3,203 ± 278, Cu 3.51 ± 0.89, Fe 33.7 ± 4.1, K 2,364 ± 145, Li 0.020 ± 0.004, Mg 153 ± 23, Mn 0.46 ± 0.06, Na 2,286 ± 130, P 1,391 ± 100, S 1,698 ± 132, Si 62 ± 11, Sr 0.38 ± 0.08, and Zn 27.6 ± 2.3. During puberty and postpuberty, when there is a significant increase in circulating androgens, the mean values were: Al 7.2 ± 1.4, B 0.21 ± 0.05, Ba 0.25 ± 0.06, Br 5.8 ± 1.0, Ca 433 ± 81, Cl 2,314 ± 201, Cu 1.77 ± 0.13, Fe 20.9 ± 1.6, K 2,585 ± 118, Li 0.0088 ± 0.0014, Mg 232 ± 27, Mn 0.34 ± 0.04, Na 1,875 ± 107, P 1,403 ± 98, S 1,673 ± 73, Si 22.2 ± 3.1, Sr 0.22 ± 0.03, and Zn 93.3 ± 8.9. Mean values (M ± SΕΜ) of percent volumes (%) of the stroma, epithelium and lumen in the prostate before puberty were 73.4 ± 2.6, 20.4 ± 1.7, and 4.45 ± 0.94, respectively, versus 46.5 ± 2.5, 38.5 ± 1.9, and 14.9 ± 1.2 during puberty and postpuberty. This work’s results confirm that the Zn mass fraction in prostate tissue is an androgen-dependent parameter. For the first time it has been demonstrated that the glandular lumen is a main pool of Ca, Mg, and Zn accumulation and that the stroma is a main pool of Al, B, Ba, Br, Cl, Cu, Fe, Mn, Na, and Si accumulation in the normal human prostate, for the age range 0–30 years. It was concluded that the Ca, Mg, and Zn binds tightly within the prostatic fluid, because the volume of glandular lumen reflects the volume of prostatic fluid.  相似文献   

18.
The effect of age and gender on major, minor, and trace element contents in the intact rib bone of 80 relatively healthy 15–55-year-old women and men was investigated. Contents or upper limit of contents of 16 chemical elements in the rib bone were determined by inductively coupled plasma atomic emission spectrometry (ICP-AES). Mean values (M?±?SΕΜ) for the mass fraction of Ba, Ca, Cu, Fe, K, Li, Mg, Na, P, S, Sr, and Zn (milligram per kilogram of dry bone) were as follows: 2.54?±?0.16, 171,400?±?4,050, 1.35?±?0.22, 140?±?11, 1,874?±?71, 0.049?±?0.011, 2,139?±?38, 5,378?±?88, 75,140?±?1,660, 1,881?±?51, 291?±?20, and 92.8?±?1.5, respectively. The upper limits of contents of Al, B, Mn, and V were <7.20, <0.65, <0.36, and <0.03, respectively. Statistically significant tendency for the Ca, Mg, and P content to decrease with age was found in the human rib bone, regardless of gender. The mass fraction of Fe in the male rib bone increases with age. It was shown that higher Ca, Mg, Na, P, and Sr mass fractions as well as lower Fe content were typical of female ribs as compared to those in male ribs.  相似文献   

19.
We investigated the uptake of inorganic elements (Be, Na, Mg, K, Ca, Sc, Mn, Co, Zn, Se, Rb, Sr, Y, Zr, Ce, Pm, Gd, and Hf) and the effect of Ca on their uptake in carrots (Daucus carota cv. U.S. harumakigosun) by the radioactive multitracer technique. The experimental results suggested that Na, Mg, K, and Rb competed for the functional groups outside the cells in roots with Ca but not for the transporter-binding sites on the plasma membrrane of the root cortex cells. In contrast, Y, Ce, Pm, and Gd competed with Ca for the transporters on the plasma membrane. The selectivity, which was defined as the value obtained by dividing the concentration ratio of an elemental pair, K/Na, Rb/Na, Be/Sr, and Mg/Sr, in the presence of 0.2 and 2 ppm Ca by that of the corresponding elemental pair in the absence of Ca in the solution was estimated. The selectivity of K and Rb in roots was increased in the presence of Ca. The selectivity of Be in roots was not affected, whereas the selectivity of Mg was increased by Ca. These observations suggest that the presence of Ca in the uptake solution enhances the selectivity in the uptake of metabolically important elements against unwanted elements.  相似文献   

20.
《Ibis》1894,36(3):447-460
  相似文献   

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