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MATERNAL-ZYGOTIC LETHAL INTERACTIONS IN DROSOPHILA MELANOGASTER: THE EFFECTS OF DEFICIENCIES IN THE ZESTE-WHITE REGION OF THE X CHROMOSOME

MATERNAL-ZYGOTIC LETHAL INTERACTIONS IN DROSOPHILA MELANOGASTER: THE EFFECTS OF DEFICIENCIES IN THE ZESTE-WHITE REGION OF THE X CHROMOSOME

While exhaustive testing of zeste-white region single-gene mutations for maternal-zygotic lethal interactions is presently underway, initial observations indicate that the[r]

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STUDIES ON SOME POSITION PSEUDOALLELES AT THE WHITE REGION IN DROSOPHILA MELANOGASTER

STUDIES ON SOME POSITION PSEUDOALLELES AT THE WHITE REGION IN DROSOPHILA MELANOGASTER

Recovered recombination classes from females heterozygous for the mutants Brownex and apricot show that Brownex occupies a separate locus at the left of apricot.. The[r]

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Text Line Extraction from Complex Layout Documents

Text Line Extraction from Complex Layout Documents

For the purpose of segmentation, the histogram of type B is starting from the top most and the region corresponding to the white pixels in the histogram type is cropped from the sub- image as a new image keeping height of the cropped images constant and varying the width according to the histogram. The value of the width from which the image is to be cropped is determined by the address of the topmost pixel of corresponding white region and the address of the lowermost pixel gives us the width up to which we have to crop the image. The cropped set of images thus formed from original textual sub-image for each white regions of the histogram is the segmented vertical lines as shown in fig. 11.
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Spatially modulated structural colour in bird feathers.

Spatially modulated structural colour in bird feathers.

For spinodal decomposition to lead to a permanent nanostructure of the kind we see in the β -keratin foams in bird feather barbs, there must also be some additional control mechanism to arrest the phase separation and lock the structure in place. Otherwise the structure would simply phase separate and it would not be possible to have the spatially modulated photonic structures that we have directly measured using SAXS in this work. The entire barb would have to reach some end point and be all one colour. Our work suggests that in the Jay feather, it is by controlling the duration of the phase separation process before this arrest takes place, which provides modulation and fidelity over the feather colour. In the white region of the barb, coarsening of the β -keratin foam structure proceeds to a greater extent than in the blue region, before the phase separation is arrested. The ability to arrest the phase separation at any point in the coarsening process is what leads to the continuous tuning of colour.
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SPONTANEOUS REVERSION OF THE WHITE-IVORY MUTANT OF DROSOPHILA MELANOGASTER

SPONTANEOUS REVERSION OF THE WHITE-IVORY MUTANT OF DROSOPHILA MELANOGASTER

The properties of the mutant and of the reversion event are consistent with the hypothesis that ivory is a serial tandem duplication of a portion of the white region and reverts[r]

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VITAL GENES THAT FLANK SEX-LETHAL, AN X-LINKED SEX-DETERMINING GENE OF DROSOPHILA MELANOGASTER

VITAL GENES THAT FLANK SEX-LETHAL, AN X-LINKED SEX-DETERMINING GENE OF DROSOPHILA MELANOGASTER

Complementation analysis of methyl methane-sulfonate induced recessive lethal mutations in the zeste-white region of the X-chromosome of Drosophila melanogaster. SKRIPSK[r]

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Climatic versus halokinetic control on sedimentation in a dryland fluvial succession

Climatic versus halokinetic control on sedimentation in a dryland fluvial succession

Interpretation: Single-storey, multi-lateral channel-fill elements represent non- aggrading laterally extensive and laterally mobile braid-belts which were succeeded by non-confined sheet-like elements (Fig. 7b). These elements are dominated by bedload transport processes, with cross-bedded sets representing the downstream migration of dune-scale mesoforms (Miall 1996). The only rare presence of low- angle-inclined Fxt lithofacies indicates that these elements did not migrate laterally to any significant degree; rather, sedimentation occurred predominantly as a result of down-channel migration of sandy bedforms (Miall, 1996). The laterally extensive “sheet-like” nature of these amalgamated channel complexes arose from repeated avulsion of active channels at a single stratigraphic horizon to form a channel belt (Martinsen et al., 1999; Gibling 2006). Original channel width is difficult to determine from outcrop study, but is likely to have been several hundred metres to possibly in excess of 1 km (cf. Tunbridge 1981). The style of termination of F2 elements, which are overlain by non-channelised elements of various types, indicates that the braid- belt either avulsed abruptly to an alternative location elsewhere on the alluvial plain (cf. Mackey & Bridge, 1995; Bridge 2003), else a cessation of channelised fluvial activity occurred throughout the region in favour of non-confined sedimentation, possibly in response to a change to a more arid climate (Blum & Tornqvist, 2000) or to a shut-down in sediment delivery (Leeder et al., 1998).
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Immunohistochemical and ultrastructural properties of the larval ciliary band-associated strand in the sea urchin Hemicentrotus pulcherrimus

Immunohistochemical and ultrastructural properties of the larval ciliary band-associated strand in the sea urchin Hemicentrotus pulcherrimus

The present WMIHC detected β-tubulin in the cyto- plasm immediately beneath the epithelial cell plasma membranes (Fig. 9b, arrow) and in CB cilia in optical tangential sections along the CBAS but it was not co- localized with the CBAS itself (Fig. 9b, red arrow). An overview of the apical surface did not indicate co- localization of the CBAS GAD-positive signal with β- tubulin (Fig. 9c–e). Thus, WMIHC strongly suggested the absence of β-tubulin epitope in the CBAS. However, the β-tubulin epitope was abundant in non-CBAS epi- thelial cells (Fig. 9e). The α-tubulin epitope was not de- tected in cilia or the CBAS (Fig. 9f, white arrows) but was detected again in the cytoplasm of epithelial cells (Fig. 9f ). In contrast to the above two tubulins, acety- lated α-tubulin was detected only in cilia (Fig. 9g, white arrow) but not in the cytoplasm of epithelial cells or the CBAS (Fig. 9g, red arrow). The mouse pre-immune serum did not exhibit positive signals in either the cilia or cytoplasm of the epithelium (Fig. 9h), which was con- sistent with the immunospecificity of the mAbs used to detect the positive signals.
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Effect of Different Level of Potassium on the Yield of White Jute (Corchorus capsularis L.) Fibre in Coastal Region of Bangladesh

Effect of Different Level of Potassium on the Yield of White Jute (Corchorus capsularis L.) Fibre in Coastal Region of Bangladesh

Above observation of the present study, it may be concluded that the variety C-3069 and 55kg K ha –1 as singly or their interaction were more successful for remarkable production of jute. From the present findings of the study it may be suggested that farmers of out country could cultivate the jute by applying 55kg K ha –1 for getting the higher growth and greater production of jute fibre under the agro–ecological zone of Patuakhali. The overall results thus indicated that the farmers may be advised for application of K which are necessary to ensure increased yield and quality of jute. But to assess the optimum requirement of nutrients for commercial jute cultivation, further study should be undertaken on priority basis because the fertility status of Bangladesh soils may vary from place to place or region to region.
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Counting and Separating Damaged Seeds of Soybean Seeds using Image Processing

Counting and Separating Damaged Seeds of Soybean Seeds using Image Processing

In addition, for the research in the medical field, Omid Sarrafzadeh et al. proposed the counting of White Blood Cells for blood smears by converting RGB image to L* a* b* and applying color values a* and b* to use K-means Clustering (KMC) and to find out the beginning of white blood cells. The experiment results showed that the mean segmentation error was 6.46 and the Jaccard Similarity Function which was used to compare the similarity of the data group was 93.71% [6]. A study proposing a technique to find out the perfect area of blood cells for determining cell composition by using image segmentation. Region Growing was used to find the area of the complete blood cell [7]. The study of Sanaha S. Pathan and Avinash D. Harale proposed the use of image processing for counting silkworm eggs. The image segmentation technique was used to find out eggs, and the thresholding technique was used to remove noise. Following this, the object count function in the MATLAB program was used [8].
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Photobiology of the Chloroplast Hosting Mollusc Elysia Timida (Opisthobranchia)

Photobiology of the Chloroplast Hosting Mollusc Elysia Timida (Opisthobranchia)

In the region of 540 nm the wavelength absorbed by carotenoid pigments, as in 'white' light, the slugs reacted to the light, and opened their parapodia at increasing intensities, but onl[r]

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Creating a Sustainable Water Supply for Central Florida

Creating a Sustainable Water Supply for Central Florida

As documented in the Creating a Sustainable Water Supply for Central Florida: A Regional Strategy white paper, it is essential that the water utilities serving the region, in cooperation[r]

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Evaluation of Plant Diversity in the Steppes of White Wormwood of the Region of Saida (Western Algeria)

Evaluation of Plant Diversity in the Steppes of White Wormwood of the Region of Saida (Western Algeria)

The analysis of the phytogeographical spectrum shows the dominance of the species of Mediterranean affinity, they account 27% for the station 1, 23% for the station 2 and 19% for the station 3, reflecting the affiliation of the steppes studied to the Mediterranean region. This confirmation is consensual between the whole of the works on the North African steppes [32] [33]. The endemic species represent approximately 10% of the flora of the area (station 1: 9%, station 2: 8% and station 3: 10%). This order of magnitude of this type is confirmed in the arid steppes of North Africa by several authors [33] [30] [34]. The types Mediterra-Irano-Turanian and West- Mediterranean account 6% of the territory explored. The biogeographical origins Macaro-Mediterranean, Med- Saharo-Arabic, Med-Saharan, Circumboreal, Ibero-Mauretanean, Eurasean, Saharo-Arabic, Paleo-moderate, Sa- haran and endemic Algero-Morrocan are represented each one with a rate of 4% in the three stations.
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A Proline-Rich Region in the Zeste Protein Essential for Transvection and white Repression by Zeste1

A Proline-Rich Region in the Zeste Protein Essential for Transvection and white Repression by Zeste1

The pseudorevertants retain the ability to self-interact, but fail to repress white or support transvection at Ultrabithorax. To account for these observations and evidence indicating that Zeste affects gene expression through Polycomb group (Pc-G) protein complexes that epigenetically maintain chromatin states, we suggest that the regions affected by the z 1 , z 78c , and pseudorevertant lesions mediate interactions between

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A Reexamination of Spreading of Position-Effect Variegation in the white-roughest Region of Drosophila melanogaster

A Reexamination of Spreading of Position-Effect Variegation in the white-roughest Region of Drosophila melanogaster

act in trans to suppress variegating alleles. In comparing different stocks, the frequency of silencing of the roughest gene, which is more distant from heterochromatin, does not correlate with the frequency of silencing of the more proximal white gene on the same chromosome, in contradiction to the expectation of models of continuous linear propagation of silencing. We frequently observed rough eye tissue that is pigmented, as though an active white gene is skipped.

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Analysis of Core Region from Egg White Lysozyme Forming Amyloid Fibrils

Analysis of Core Region from Egg White Lysozyme Forming Amyloid Fibrils

cubation of the K peptide is interpreted by assuming that the tryptophan residue is in more internal and has a propensity to be non-polarized. The possible involvement of hydrophobic amino acids to the pro- cess of fibril formation was additionally suggested by the fact that fibrillation of the K peptide was inhibited by a comparatively high concentration of SDS >5 mM (unpublished data). In native HEWL, the region con- taining the K peptide, which is partially embedded inside the lysozyme molecule and located in the active site cleft (see Figs. 1A and B), might possibly keep the conformational stability of protein and thus repress aggregation. It is inferred that exposure of the K pep- tide region to the surface causes it to act as a core for aggregation/fibrillation and in turn amyloidosis.
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A Novel Local Line Binary Pattern Based Image Segmentation Algorithm for Defocus Blur Y. Meenakshi 1, B. Anuradha2

A Novel Local Line Binary Pattern Based Image Segmentation Algorithm for Defocus Blur Y. Meenakshi 1, B. Anuradha2

Bae and Durand[2] provided the picture processing techniques in which defocus magnification is used to perform blur estimation. To optimize defocus blur suitable to lens aperture with the aid of taking a single photo then estimate the size of blur kernel at edges and similarly they unfold this method to the whole image. In this method multi scale component detector is used and version turning into that attain the size of blur propagate the blur degree thru assuming that fogginess is simple in which depth and coloration are approximately comparable. Using defocus map, they extend the present blurness, which means that blur the blurred region and keeps the pointy areas sharp. In assessment to other techniques extra difficult problems arises which includes depth from defocus, so this proposed method do no longer need precise depth estimation and do no longer need to disambiguate texture plenty less areas. The technique models changes in power the least bit frequencies with blur and no longer just extremely high frequenies (edges).
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Race and region have independent and synergistic effects on dietary intakes in black and white women

Race and region have independent and synergistic effects on dietary intakes in black and white women

reverse causality is unlikely for our main exposures and outcomes (i.e., nutrient intake can not predict race or region). It is possible that disease status may have impacted our results, although we adjusted for several baseline diseases to reduce this potential bias. Selection bias may have resulted from using commercially avail- able lists for recruitment, as not all individuals have listed telephone numbers and/or a mailing address. We are limited by the use of the Block 98 FFQ, which is now relatively old; however, this was among the main tools used to collect dietary data on racially diverse populations at the time this study was conceived (c. 2000) and it specifically included foods contributing to diets among blacks living in the United States (personal communication, Torin Block, NutritionQuest™, Berke- ley, CA). While this FFQ has been validated in a differ- ent population of women [15], it has not yet been validated in the REGARDS population, as aforemen- tioned. FFQs were not designed to measure absolute intakes, and estimates for some of our micronutrients were lower than expected. Using diet records in a small metabolic study, Lovejoy et al. [7] reported similar means to ours for calcium, but other nutrients were generally higher than those we reported, as seen else- where [8,25-27]. Under-reporting is a common error for self-reported dietary instruments, especially the FFQ, and both random and systematic under-reporting may have had an even greater impact in this population, many of whom were older and of lower SES [28] and were overweight or obese [29]. It is also important to remember that while our large sample allowed us to detect (highly) statistically significant differences in nutrient intakes, many of these differences are quite small. Relying upon statistical significance can be mis- leading and some of our findings are likely of limited clinical importance. Nonetheless, along with our compa- nion study in men [17], ours are the first studies to demonstrate that race and region interact together in influencing dietary intakes, underscoring the complexity of eating behavior. Finally, while our analysis showed interesting findings of effect modification (race*region) on nutrient intakes, and our findings appear reasonable, interaction effects can be difficult to replicate [16]; addi- tional research is needed to confirm these results. Table 5 Multivariable linear regression analyses showing associations between race, region, and nutrients among 12,105 women participating in the Reasons for Geographic and Racial Differences in Stroke study 1 (Continued)
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Rice False Smut Fungus, Ustilaginoidea virens, Inhibits Pollen Germination and Degrades the Integuments of Rice Ovule

Rice False Smut Fungus, Ustilaginoidea virens, Inhibits Pollen Germination and Degrades the Integuments of Rice Ovule

Figure 1. Invasion routes of U. virens in the early interac- tion with rice host. (a) Conidia used for in vitro inoculation of rice panicles; (b) Hyphae grow on the surface of rice panicles after co-cultivation on 1/2 MS medium; (c) A spike- let enclosed by white hyphae; (d) The spikelet in (c) was opened, showing hyphae inside the glumes and on the top of stamen, high magnification of the top of the glumes is showed on the right, white arrow indicates hyphae; (e) High magnification of the lower part of (d) showing hyphae on anthers and stigma,hyphae are not observed on the base of floral organs; (f) Scanning electron microsocopy showing hyphae on the surface of the anther; (g) Scanning electron microsocopy showing hyphae around the stigma; (h) Hy- phae infected the base of floral organs, surrounding the anther filaments and enclosing the ovary.
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Black politics in the age of Jim Crow : Memphis, Tennessee, 1865 to 1954

Black politics in the age of Jim Crow : Memphis, Tennessee, 1865 to 1954

said that the politicians who manipulated the black vote in the 1926 election “paved the way for the situation now confronting the people of Memphis and constituting the greatest menace to white supremacy in this city since the reconstruction days.” If he did not protest, Paine said, “I would be false to my own convictions of what is best for both races and disloyal to the ideals and traditions of the [S]outh.” Declaring there was “nothing to fear from votes of [the] class [of] intelligent law-abiding negroes,” he said that office seekers could appeal for “the support of a negro who votes his own convictions.” He opposed the “the recent appeals for racial solidarity and political mass action” and “political activities that [would] give the negro . . . the balance of power in [municipal] political affairs.” He also was against the league’s demands for black firefighters and policemen as well as park admission. Pointing out that he had provided blacks with better public services, he said that he had tried to treat blacks fairly and justly and pledged to continue to do so. 465 The West Tennessee Civic and Political League members responded that “they were determined to show the city officials with the citizens’ ballots that their demands were not idle jests, but declarations for their rights.” 466
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