湖南石门发现褐胸鹟

<正>壶瓶山国家级自然保护区位于湖南省北部石门县境内。2013年7月5日,在该保护区的袁家岭(30°03′05.1″N,110°55′01.6″E,海拔639 m)常绿阔叶林下观察到1只鹟科鸟类(图1)。经仔细观察,该鸟体型较小,胸与两胁黄褐色,体羽偏褐色,尾上覆羽、尾羽和两翅等羽缘黄褐色,无翼斑,眼先及眼圈灰白色,下体灰白色,上嘴黑色,下嘴基黄色,脚暗黄。根据照片对比,符合褐胸鹟的鉴别特征(赵正阶l995,约翰·马敬能等2000,郑作     

贵州贵阳发现长尾夜鹰北大核心CSCD

2018年10月26日,在贵州省贵阳市龙洞堡国际机场内(26°32′30″N,106°48′11″E,海拔1132m,挂网高度0.5m)网捕到一只夜鹰科(Caprimulgidae)鸟类,受条件限制未进行鸟体测量及DNA测序等工作,拍照后立即放飞。经查阅《中国鸟类分类与分布名录》(郑光美2017),贵州仅有普通夜鹰(Caprimulgusindicus)分布,但该鸟体色以及尾羽特征均与普通夜鹰不符,较符合长尾夜鹰(C.macrurus)的特征描述。     

西藏察隅县发现灰头麦鸡

<正>2016年6月19日,在西藏自治区察隅县竹瓦根镇(97°27'20.03″E,28°39'14.04″N,海拔2 302 m)观察到1只灰色涉禽,该鸟全身呈灰褐色,喙呈黄色,喙端有黑斑,头灰色,胸前有黑色条状斑,腹部白色,飞行时背部褐色,翅初级飞羽黑色、次级飞羽白色,尾白色。经鉴定,该鸟为灰头麦鸡Vanellus cinereus(MacK innon et al.,2000),通过查阅文献(中国科学院青藏高原综合科学考察队,1983;郑光美,2011;刘迺发等,2013;曲利明,2014),发现该鸟为西藏鸟类新纪录。     

西藏墨脱县发现家八哥

2019年10月31日和11月3日,在西藏自治区墨脱县达木乡(95°27′48.39″E,29°29′39.22″N,海拔1 577 m)观察到1只椋鸟科 Sturnidae鸟类在民房屋顶活动,该鸟头黑色,身体褐色,喙黄色,眼周有明显的黄色裸皮区域,脚黄色,尾下覆羽具白色端斑(图1),经鉴定为家八哥Acridotheres tristis。     

宁夏泾源发现灰翅鸫和黄臀鹎

正采用夜鹰HD-SG-009红外相机对宁夏泾源县六盘山国家级自然保护区的哺乳动物及地面活动的鸟类进行监测期间,于2018年6月10日在二龙河林场安放的红外相机(35°16′24.35″N,106°20′56.84″E,海拔2 535 m)拍摄到一种雀形目鸟类(图1a)。该鸟除翅和尾羽黑褐色外,其余全为橄榄褐色;嘴橘黄色,眼圈黄色,腿和爪暗肉色。2019年3月9日在六盘山国家级自然保护区(35°24′19.38″N,106°23′13.08″E,海拔1 782 m)拍摄到一种雀形目鸟类(图1b)。其额、头顶、枕、眼先、眼周均为黑色;耳羽灰褐或棕褐色,背、肩、腰至尾上覆羽土     

河南董寨发现中华仙鹟

正河南董寨国家级自然保护区位于河南省南部的罗山县境内(114°18′～114°30′E,31°28′～32°09′N),2019年5月12日上午,保护区鸟类环志站技术人员在七里冲保护站进行鸟类环志时,捕获1只小型鸟类,捕获地生境为荒废农田边的灌丛林(114°14′25″E,31°02′40″N,海拔125 m)。该鸟整体呈深蓝色,头顶及背部灰蓝色,颏部和喉部蓝黑色,胸部棕黄色并向喉部形成一小的倒三角形的凸起,两胁淡橙褐色,下体整体灰白色,嘴黑色,     

陕西省鸟类新记录——半蹼鹬

2019年8月31日,笔者于陕西省渭南市蒲城县荆姚镇一晒碱池内(109°25′7.45″34°48′417〃N,海拔362 m)观察到1只半蹊鹏Limnodromus semipalmatus(图1)。使用NIKON D850和SIGMA S150-600镜头拍照并观察。该鸟整体呈灰褐色沾黄色,嘴长而直呈黑色,端部略粗,虹膜褐色,具污白色眉纹,贯眼纹深色至眼基,背灰褐色,两翼羽毛深褐色具浅色羽缘,胸部及两侧染棕黄,腹部白色,胁部及尾白色并具黑色横纹,脚黑色。查阅《中国鸟类野外手册》(约翰?马敬能等,2000)、《中国鸟类志》(赵正阶,2001)、《中国鸟类图鉴》(曲利明,2014)和《中国鸟类分类与分布名录(第三版)》(郑光美,2017)以及相关文献资料,确认其为陕西省鸟类新记录。初步推测其在陕西省为迷鸟,居留型有待进一步观察。     

西藏昌都发现白鹭

<正>2013年9月至2014年6月,笔者在西藏昌都市八宿县、贡觉县、芒康县和昌都县先后观察并拍摄到白鹭(Egretta garzetta),为西藏首次发现。2013年9月29日,在八宿县然乌镇政府后方的湖边(29°30′17.28″N,96°45′25.44″E,海拔3 934 m),观察到2只白鹭成鸟,其体形纤瘦,全身羽毛白色,头部无羽冠,肩、背和前胸的蓑状羽也消失,呈冬羽特征;虹膜为黄色;眼先黄绿;嘴黑色,但嘴裂处及下嘴基部显淡黄色;胫与跗跖部黑色,趾黄绿色。2014年5月至6月,     

贵州习水发现淡绿鵙鹛

正2017年5月8日在贵州习水县的箐山森林公园(28°20′17.11″N,106°11′13.51″E,海拔1 362 m)的针阔混交林中发现2只形态相似而未能辨识的鸟类,与暗绿绣眼鸟(Zosterops japonicus)混群觅食。经查阅相关资料和文献(约翰·马敬能等2000,赵正阶2001,Reddy 2008,郑光美2011,Dickinson et al.2014),确认该鸟种为淡绿贝鸟鹛(Pteruthius xanthochlorus),隶属于雀形目(Passeriformes)莺雀科(Vireonidae)贝鸟鹛属,为贵州省鸟类分布新记录种。     

陕西省鸟类新记录——文须雀

2018年5月25-29日进行陕西省榆林地区鸟类监测时,在陕西省红碱淖国家级自然保护区(109°53′33″E,39°04′26″N,海拔1220 m)观察到15只文须雀Panurus biarmicus,其中,雄性成鸟2只,幼鸟13只。用Kowa双筒望远镜(10×42)观察,Canon EOS 7DⅡ和100~400 mm变焦镜头相机拍照(图1、图2),该鸟嘴黄色,脚黑色,上体棕黄色,翅黑色具白色翅斑,尾甚长。     

Relations of the Al,B, Ba,Br, Ca,Cl, Cu,Fe, K,Li, Mg,Mn, Na,P, S,Si, Sr,and Zn mass fractions to morphometric parameters in pediatric and nonhyperplastic young adult prostate glands

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.     

Simultaneous measurement of the trace elements Al, As, B, Be, Cd, Co, Cu, Fe, Li, Mn, Mo, Ni, Rb, Se, Sr, and Zn in human serum and their reference ranges by ICP-MS

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.     

The Effect of Age and Gender on Al, B, Ba, Ca, Cu, Fe, K, Li, Mg, Mn, Na, P, S, Sr, V, and Zn Contents in Rib Bone of Healthy Humans

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.     

Crystal structure, detonation performance, and thermal stability of a new polynitro cage compound: 2, 4, 6, 8, 10, 12, 13, 14, 15-nonanitro-2, 4, 6, 8, 10, 12, 13, 14, 15-nonaazaheptacyclo [5.5.1.13, 11. 15, 9] pentadecane

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.     

Distribution of N,P, K,Ca, Mg,S, Zn,Fe, Mn and Cu in groundnut

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.     

Potential Compounds for Oral Cancer Treatment: Resveratrol,Nimbolide, Lovastatin,Bortezomib, Vorinostat,Berberine, Pterostilbene,Deguelin, Andrographolide,and Colchicine

Oral cancer is one of the main causes of cancer-related deaths in South-Asian countries. There are very limited treatment options available for oral cancer. Research endeavors focused on discovery and development of novel therapies for oral cancer, is necessary to control the ever rising oral cancer related mortalities. We mined the large pool of compounds from the publicly available compound databases, to identify potential therapeutic compounds for oral cancer. Over 84 million compounds were screened for the possible anti-cancer activity by custom build SVM classifier. The molecular targets of the predicted anti-cancer compounds were mined from reliable sources like experimental bioassays studies associated with the compound, and from protein-compound interaction databases. Therapeutic compounds from DrugBank, and a list of natural anti-cancer compounds derived from literature mining of published studies, were used for building partial least squares regression model. The regression model thus built, was used for the estimation of oral cancer specific weights based on the molecular targets. These weights were used to compute scores for screening the predicted anti-cancer compounds for their potential to treat oral cancer. The list of potential compounds was annotated with corresponding physicochemical properties, cancer specific bioactivity evidences, and literature evidences. In all, 288 compounds with the potential to treat oral cancer were identified in the current study. The majority of the compounds in this list are natural products, which are well-tolerated and have minimal side-effects compared to the synthetic counterparts. Some of the potential therapeutic compounds identified in the current study are resveratrol, nimbolide, lovastatin, bortezomib, vorinostat, berberine, pterostilbene, deguelin, andrographolide, and colchicine.     

New Coleoptera records from New Brunswick, Canada: Stenotrachelidae, Oedemeridae, Meloidae, Myceteridae, Boridae, Pythidae, Pyrochroidae, Anthicidae, and Aderidae

We report 19 new species records for the faunal list of Coleoptera in New Brunswick, Canada, six of which are new records for the Maritime provinces, and one of which is new Canadian record. We also provide the first recent records for five additional species in New Brunswick. One new species of Stenotrachelidae, Cephaloon ungulare LeConte, is added to the New Brunswick faunal list. Additional records are provided for Cephaloon lepturides Newman, as well the first recent record of Nematoplus collaris LeConte. Two species of Oedemeridae, Asclera puncticollis (Say) and Asclera ruficollis (Say), are newly reported for New Brunswick, and additional locality and bionomic data are provided for Calopus angustus LeConte and Ditylus caeruleus (Randall). The records of Ditylus caerulus are the first recent records for the province. Three species of Meloidae, Epicauta pestifera Werner, Lytta sayi LeConte, and Meloe augustcollis Say are reported the first time for New Brunswick; Epicauta pestifera is newly recorded in Canada. Lacconotus punctatus LeConte and the family Mycteridaeis newly recorded for New Brunswick. The first recent records of Borus unicolor Say (Boridae) are reported from the province. One new species of Pythidae, Pytho siedlitzi Blair, and the first recent records of Pytho niger Kirby are added to the faunal list of New Brunswick. Three species of Pyrochroidae are newly reported for the province, including Pedilus canaliculatus (LeConte) and Pedilus elegans (Hentz), which are new for the Maritime provinces. Five species of Anthicidae and the first recent record of Anthicus cervinus LaFerté-Sénectére are newly reported for New Brunswick. Anthicus melancholicus LaFerté-Sénectère, Sapintus pubescens (LaFerté-Sénectère), Notoxus bifasciatus (LeConte), and Stereopalpus rufipes Casey are new to the Maritime provinces faunal list. Ambyderus granularis (LeConte) is removed from the faunal list of the province. Three species of Aderidae, Vanonus huronicus Casey, Zonantes fasciatus (Melsheimer), and Zonantes pallidusWerner, are newly recorded for New Brunswick; Zonantes fasciatus and Vanonus huronicus are new for the Maritime provinces' faunal list. Collection data, bionomic data, and distribution maps are presented for all these species.     

Reference values for the concentrations of As,Cd, Co,Cr, Cu,Fe, I,Hg, Mn,Mo, Ni,Pb, Se,and Zn in selected human tissues and body fluids

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.     

Regional Mapping Panels for Chromosomes 3, 4, 5, 11, 15, 17, 18, and X

The NIGMS Human Genetic Mutant Cell Repository collects and distributes well-characterized human/rodent somatic cell hybrid regional mapping panels for human chromosomes 3, 4, 5, 11, 15, 17, 18, and X. Each regional mapping panel consists of 4 to 11 hybrids that divide the chromosome into 5 to 11 intervals. These panels have been extensively characterized by the submitters and the NIGMS Repository.     

Competitive inhibition and selectivity enhancement by Ca in the uptake of inorganic elements (Be, Na, Mg, K, Ca, Sc, Mn, Co, Zn, Se, Rb, Sr, Y, Zr, Ce, Pm, Gd, Hf) by carrot (Daucus carota cv. U.S. harumakigosun)

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.