Limnological characterization of the lakes of black- and white-waters in the central Amazonian, Brazil

2010 ◽  
Vol 30 (10) ◽  
pp. 1625-1628
Author(s):  
M.A.L. Rubim ◽  
M.A. Villacorta-Correa
2003 ◽  
Vol 329 (1-3) ◽  
pp. 31-38 ◽  
Author(s):  
M Aguilar ◽  
E Barrera ◽  
M Palomar-Pardavé ◽  
L Huerta ◽  
S Muhl

2008 ◽  
Vol 17 (3) ◽  
pp. 45-56 ◽  
Author(s):  
Gascia Ouzounian

Abstract This article explores concepts of acoustic space in postwar media studies, architecture, and spatial music composition. A common link between these areas was the characterization of acoustic space as indeterminate, chaotic, and sensual, a category defined in opposition to a definite, ordered, and rationalized visual space. These conceptual polarities were vividly evoked in an iconic sound-and-light installation, the Philips Pavilion at the 1958 Brussels World Fair. Designed by Le Corbusier, the Philips Pavilion also featured a black-and-white film, color projections, hanging sculptures, and Edgard Varèse’s Poème électronique, a spatial composition distributed over hundreds of loudspeakers and multiple sound routes. Typically remembered as a sequence of abstract sound geometries, the author argues that Poème électronique was instead an allegorical work that told a “story of all humankind.” This narrative was expressed through a series of conceptual binaries that juxtaposed such categories as primitive/enlightened, female/male, racialized/white, and sensual/ rational– contrasts that were framed within the larger dialectic between acoustic and visual space.


2018 ◽  
Vol 4 (1) ◽  
pp. 95-104 ◽  
Author(s):  
MA Jalil ◽  
MP Choudhury ◽  
MM Kabir ◽  
MA Habib

The study was undertaken to characterize of Black Bengal Goat (BBG) under farming condition. Data on the different parameters were collected during July 2006 to June 2013 at BLRI goat research farm. A total of 299 animals of different ages from birth to 36 months of both sexes were included. All type of measurements were taken when goats standing freely. All measurements were taken in metric unit. Data were analyzed by SPSS version 17.0 statistical computer program. In BLRI goat herd, four different types of coat color were observed in BBG i.e. Black, Black and white, Black and brown and completely white. Body length is higher in males than that of females for all generation and age group. Male goats had higher heart girth than that of female goats irrespective of age and generations. Average adult (>24 months age) body weight of male and female goats as 29.9±1.76 and 23.6±0.81 kg, respectively. Wither height was higher in adult males than females for same age. Left and right horn length in both sexes ranged from 3.6 to 13.2 cm. Female goats had higher ear length than male goats. Tail length of Black Bengal goats ranged from 8.0±0.52 to 11.1±0.43 cm and tail breadth ranged from 2.1±0.10 to 3.6±0.43 cm for different age and sex group. Average male foreleg length in >24 months of age possessed higher than that of female. Average udder length and breadth of BBGs were 7.5±0.24, 11.7±0.44 and 14.3±0.46 and 5.9±0.16, 7.4±0.28 and 7.8±0.23 cm, respectively for age groups 6-12, 12-24 and >24 months of age. The average testis length and breadth in adult males were 9.1±0.18, 7.5±0.48 and 9.8±0.49 and 6.8±0.13, 5.2±0.27 and 6.3±0.32, cm respectively for 6-12, 12-24 and >24 months of ages groups.Asian J. Med. Biol. Res. March 2018, 4(1): 95-104


Author(s):  
Wang-Dui Basang ◽  
Tian-Wu An ◽  
Xiao-Lin Luo ◽  
Yan-Bin Zhu ◽  
Luo-Bu Danjiu Danjiu ◽  
...  

In this study, we used high-throughput technology to provide the first transcriptome dataset for differentially expressed miRNA in mixed pools of dermis tissue from black- and white-coated yak to research the possible molecular mechanisms of yak coat pigmentation. In this study, 92,636,002 and 95,917,842 clear reads were generated through Illumina paired-end sequencing. A total of 78 differentially expressed miRNAs (DEMs) were identified, including 59 upregulated and 19 downregulated miRNAs in the mixed pools of white-coated yak compared with the mixed pools of black-coated yak. In addition, 3634 genes were predicted as putative targets of DEMs. These DEGs related to 59 GO categories and were enriched in 216 Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways, including melanogenesis and the Wnt signaling pathway. The results of the current study indicated that the coat color of the yak involved the transcriptional regulation process of miRNAs. These results provide helpful data to understand the molecular mechanisms of yak coat pigmentation.


2017 ◽  
Vol 116 (5) ◽  
pp. 1423-1431 ◽  
Author(s):  
Cláudia Maria Castro Gomes ◽  
Maria Gloria Teixeira Sousa ◽  
Joyce Prieto Bezerra Menezes ◽  
Marliane Campos Batista ◽  
Ana Carolina Stocco Lima ◽  
...  

Author(s):  
O.E. Nwankwo ◽  
S.A. Odewo ◽  
B.A. Ajani ◽  
L.T. Soyewo ◽  
M.S. Nwefuru

Background: There were reports that M. pruriens was edible and natural source of Levodopa used in the treatment of Parkinson’s disease, but the identity of the variety used for the treatment is uncertain. Hence, the present study is important to provide their diagnostic characters for further studies by prospective researchers. Methods: The qualitative study was carried out by observing and recording the features of the taxa while the quantitative was obtained as the leaflet length and width were measured using a metre rule. From each specimen, leaves were randomly selected and measured using metre rule. Standard methods were used in this study. Result: The three taxa possess trifoliate leaves in common and the flower colours are as follows: Yellow in M. flagellipes, purple in M. puriens var. pruriens and white in M. pruriens var. utilis. Testa colours are black, black and white in the M. flagellipes, M. pruriens var. pruriens and M. pruriens var. utilis, respectively. The highest average leaflet length was 17.5 recorded in M. pruriens var. pruriens while the lowest average leaflet length of 8.4 was recorded in M. pruriens var. utilis. The three taxa could be eaten based on review. Petal and testa colour could be used to distinguish the taxa studied.


2015 ◽  
Vol 1115 ◽  
pp. 418-421 ◽  
Author(s):  
Akhama Arifutzzaman ◽  
Iskandar Yaacob ◽  
M.A. Hawlader ◽  
Md Abdul Maleque

Graphene was fabricated by a well-known technique of ignition of magnesium (Mg) metal ribbon in solid carbon dioxide. Two dry ice slabs were used as carbon source for the production of graphene. A hemispherical cavity of about 3-4 cm diameter was carved on surfaces of both dry ice slabs. About 0.5g of Mg ribbon was burnt and immediately placed into the dry ice cavity. It was then covered up by another carved slab of dry ice. After complete combustion, mixture of black and white residues was formed. It was then recovered. 20 ml of 1 M HCl acid was added to the product mixture. Reaction of HCl with MgO and unburned Mg formed MgCl2 which was then washed away by deionized water. The isolated carbon material was separated as product. Characterization of the product was performed using optical microscopy (OM), where images showed the presence of sheet-like light gray objects. Field emission scanning electron microscopy (FESEM) and transmission electron microscope (TEM) analyses revealed the presences of graphene. The lateral length of the sheet was about 3-3.5 μm and the surface area was about 3-5.5 μm2 using images analysis software.


2000 ◽  
Vol 147 (5) ◽  
pp. 1787 ◽  
Author(s):  
Enrique Barrera ◽  
Manuel Palomar Pardavé ◽  
Nikola Batina ◽  
Ignacio González

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