962 resultados para Ku Klux Klan (1915- )
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Uranium isotopes were measured in waters and suspended particulate matters (SPM) of the main channel of Yellow River, China that were sampled during four field trips between August 2005 and July 2006. The results show that the concentration of dissolved U (2.04-7.83 mu g/l) and the activity ratio of U-234/U-238 (1.36-1.67) are much higher than the average U concentrations and activity ratios of global major rivers. Mass balance calculations using the results of simulated experiments and measurement data show that the section of the Yellow River between Lanzhou and Sanmenxia has its dissolved U derived from two sources: suspended sediments (68%) and groundwater/runoff from loess deposits (32%). Both sources are related to the heavy erosion of the Chinese Loess Plateau. (C) 2008 Elsevier Ltd. All rights reserved.
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Three different forms of PS I complexes were isolated from a siphonous marine green alga, Codium fragile, by Triton X-100 sucrose gradient centrifugation. Zone III had a Chl a/b>20, and designated as PS I. core complex CC I because it created only CP I band in mild PAGE. Zone IV and V had absorption at 436 and 674 nm, 467 and 650 nm, and 540 nm, suggesting the presence of Chl a, Chl b, siphonaxanthin and siphonein, Chl a/b were 3.23 and 2.4, respectively. Both CP I and CP I a bands were observed when they were subjected to mild PAGE. Therefore, Zone IV and V were different forms of PS I complexes that consisted of CC I and different amount of light-harvesting complex LHC I. Zone III contained only 66 and 56 ku peptides in SDS-PAGE, while Zone IV and V had 4 different LHC I peptides of 25, 26, 26.2 and 27.5 ku in addition to 66, 56 ku peptides. Fluorescence emission spectra showed that efficient energy transfer were kept among pigments in isolated PS I complexes. Excitation energy absorbed by Chl b, siphonaxanthin and siphonein can be transferred to Chl a.
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A new member of antimicrobial protein genes of the Crustin family was cloned from haemocytes of the Chinese shrimp Fenneropenaeus chinensis by 3' and 5' RACE. The full-length cDNA of Crustin-like gene contains a 390 bp open reading frame, encoding 130 amino acids. The deduced peptide contains a putative signal peptide of 17 amino acids and mature peptide of 113 amino acids. The molecular mass of the deduced mature peptide is 12.3 ku. It is highly cationic with a theoretical isoelectric point of 8.5. The deduced amino acids sequence of this Crustin showed high homology with those of Penaeus (Litopenaeas) setferus. Northern blotting showed that the cloned Crustin gene was mainly expressed in haemocytes, gill, intestine, and RNA in situ hybridization indicated that the Crustin gene was constitutively expressed exclusively in haemocytes of these tissues. Capillary electrophoresis RT-PCR analysis showed that Crustin was up-regulated dramatically from 12 to 48 h after a brief decrease of mRNA during first 6 h in response to microbe infection. The level of Crustin mRNA began to restore at 72 h post-challenge. This indicated that Crustin gene might play an important role when shrimps are infected by bacterial pathogen.
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A new model is proposed to estimate the significant wave heights with ERS-1/2 scatterometer data. The results show that the relationship between wave parameters and radar backscattering cross section is similar to that between wind and the radar backscattering cross section. Therefore, the relationship between significant wave height and the radar backscattering cross section is established with a neural network algorithm, which is, if the average wave period is <= 7s, the root mean square of significant wave height retrieved from ERS-1/2 data is 0.51 m, or 0.72 m if it is >7s otherwise.
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A new algorithm is proposed to estimate significant wave height from QuikSCAT scatterometer data. The results show that the relationship between wave parameters and the radar backscattering cross section is similar to that between wind and the radar backscattering cross section. Therefore, the relationship between significant wave height and the radar backscattering cross section is established with a neural network algorithm. If the average wave period is less than or equal to 7 s, the root mean square errors of the significant wave height retrieved from QuikSCAT data are 0.58 m for HH polarization (HH-pol) and 0.60 m for VV polarization (VV-pol). If the average wave period is greater than 7 s, the root mean square errors of the significant wave height retrieved from QuikSCAT data are 0.83 m (HH-pol) and 1.10 m (VV-pol), respectively.
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The Yellow River (Huanghe) is the second largest river in China and is known for its high turbidity. It also has remarkably high levels of dissolved uranium (U) concentrations (up to 38 nmol l(-1)). To examine the mixing behavior of dissolved U between river water and seawater, surface water samples were collected along a salinity gradient from the Yellow River plume during September 2004 and were measured for dissolved U concentration, U-234:U-238 activity ratio, phosphate (PO43-), and suspended particulate matter. Laboratory experiments were also conducted to simulate the mixing process in the Yellow River plume using unfiltered Yellow River water and filtered seawater. The results showed a nonconservative behavior for dissolved U at salinities < 20 with an addition of U to the plume waters estimated at about 1.4 X 10(5) mol yr(-1). A similarity between variations in dissolved U and PO43- with salinity was also found. There are two major mechanisms, desorption from suspended sediments and diffusion from interstitial waters of bottom sediments, that may cause the elevated concentrations of dissolved U and PO43- in mid-salinity waters. Mixing experiments indicate that desorption seems more responsible for the elevated dissolved U concentrations, whereas diffusion influences more the enrichment of PO43-.
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The present paper reports 8 pontoniine shrimp species, from Anambas and Natuna, Indonesia, i. e., Anchistus miersi (De Man, 1888), Conchodytes meleagrinae Peters, 1852, Hamodacotylus boschmai Holthuis, 1952, Jocaste japonica (Ortmann, 1890), Palaemonella pottsi (Borradaile, 1915), Periclimenes andamanensis Kemp, 1922, Periclimenes attenuatus Bruce, 1971, and Periclimenes grandis (Stimpson, 1860).
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Wydzia Nauk Politycznych i Dziennikarstwa: Stosunki Midzynarodowe
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Wydzia Nauk Spoecznych: Instytut Filozofii
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Tematem artykuu jest ksika bezporednio nie zaliczana do literatury Holocaustu, wybitna powie ycie i los, rosyjskiego pisarza i dziennikarza Wasilija Grossmana, ktry dzi uznawany jest za jednego z najwaniejszych twrcw rosyjskich XX wieku. ycie i los okazuje si przykadem ujcia dramatu Shoah na tle wojny jako czci wielkiej Historii poddanej szalestwom ideologii i polityki nazistw oraz terroru i rosncego z drugiej strony antysemityzmu w pastwie bolszewickim. Jednoczenie Zagada pozostaje w tym utworze przede wszystkim tragedi konkretnych osb, widziana w porzdku pojedynczej ludzkiej egzystencji, ktra nie daje si nigdy cakowicie sprowadzi do tego, co bezosobowe i masowe. Indywidualna perspektywa humanizuje obraz historii, ale te i go podwaa w jego oglnych strukturach i narracjach. Artyku opisuje elementy, ktre skadaj si na ydowski wtek utworu. Dla jego odczytania wany okazuje si szerszy kontekst biografii Grossmana i historia powstania oraz wydania powieci ycie i los. Jak wida rosyjski pisarz dokona dwch znaczcych gestw w odniesieniu do problemu reprezentacji Zagady: z jednej strony zwrci si ku konwencjom literackim, wykorzysta epicki rozmach, kompozycj wielowtkow i panoramiczne ujcia wraz z ich koncepcj realizmu, wehikularnoci sowa, a jednoczenie wyszed poza estetyczne ramy tekstu literackiego, wprowadzi elementy lirycznych opisw i autobiograficzne akcenty oraz podkreli etyczny wymiar caoci jako formy pamici o tych niezliczonych ofiarach nie tylko Zagady, ale i kadego XX wiecznego totalitaryzmu.
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Warto poznawcza zamieszczonych w tomie artykuw polega na ogldzie gier jako nowego zjawiska w kulturze i na staraniach o zrozumienie ich atrakcyjnoci oraz na wysiku poszukiwania ich pozytywnej roli wobec uytkownikw. Autorzy artykuw podejmuj rozmaite tematy zwizane w pierwszym rzdzie z grami komputerowymi i fabularnymi. Przedstawiaj ich nowe cechy, owietlaj je z rnych punktw widzenia: medialnego, socjologicznego, psychologicznego, etycznego. I co rwnie interesujce, dostrzegaj wiele powiza z dobrze zakorzenionymi w kulturze dziedzinami, na przykad z literatur czy filozofi. Czytelnik zyskuje wgld w dzisiejszy stan bada nad grami. Nie tylko otrzymuje obraz wstpnych refleksji, ale ma szans zetkn si z postaw badawcz w stosunku do gier. (z recenzji wydawniczej prof. dr hab. Maryli Hopfinger)
