Search for SUSY in (Leptons +) Jets + E_T^miss final states

We study the observability of the squarks and gluinos in CMS at LHC. Classical E_T^miss + jets final state as well as a number of additional multilepton signatures (0 leptons, 1 lepton, 2 leptons of the same sign, 2 leptons of the opposite sign and 3 leptons) are investigated . The detection of these sparticles relies on the observation of an excess of events over Standard Model background expectations. The study is made in the framework of a minimal SU(5) mSUGRA model as a function of m_0, m_1/2 for 4 sets of model parameters : tan(beta) = 2 or 35 and sign(mu) = +/- 1 and for fixed value of A_0 = 0. The CMS detector response is modelled using CMSJET 4.51 fast MC code (non-GEANT). The results obtained are presented as 5 sigma detection contours in the m_0, m_1/2 planes and with optimized selection cuts in various regions of the parameter space. The result of these investigations is that with integrated luminosity L=10^5 pb^-1 the squark and gluino mass reach is about 2.5 TeV and covers most of the interesting parts of parameter space according to neutralino relic density expectations. The influence of signal and background cross-section uncertainties on the reach contours is estimated. The effect of pile-up on signal and background is also discussed. This effect is found to be insignificant for E_T^miss and single lepton signatures, whilst only a minor deterioration is seen for multilepton final states.Comment: 28 pages, 28 figure

When the Orioles Come North Again

VERSE 1The gentle evening breeze was softly sighing,The silver moon was gleaming in the sky,I kissed away the tears, for you were crying,I said, “Don’t worry, I’ll come bye and bye;”You whispered, “Sweetheart, I will never doubt you,My heart goes with you ev’rywhere you stray;This world’s a dreary place for me without you,But I’ll be happy when I hear you say:” CHORUS“When the orioles come North again,And the violets cover the plain,Then the reapers’ sweet songWill be heard all day long,For the sunshine must follow the rain;We’ll forget all our sorrow and pain,In the music of Love’s sweet refrain,By the murmuring streamWe will linger and dream,When the orioles come North again. VERSE 2They say that ev’ry cloud has silver lining,They say the darkest hour’s before the dawn,I’m sorry that I left you there repining,I know that you have missed me since I’ve gone;The years have drifted by since last we parted,But I am longing for you more each day!Forgive me if I left you broken-hearted!I mean it when to you again I say: CHORU

Spontaneous Mutations Decrease Sensitivity of Gene Expression to Random Environmental Variation in Caenorhabditis elegans

Biological phenotypes are described as “canalized” if they are robust to minor variation of environment and/or genetic background. The existence of a robust phenotype logically implies that some underlying mechanism must be variable, in the sense of “able to vary”, in order to compensate for variation in the environment and/or genetic effects. Several lines of evidence lead to the conclusion that deleterious mutations predictably render morphological, developmental, and life-history traits more sensitive to small random environmental perturbations - that is, mutations de-canalize the phenotype. and the common (unmutated) ancestor. There was significantly less environmental variance in the MA lines than in the ancestor, both among replicates of the same gene and among genes.Deleterious mutations consistently decrease the within-line component of variance in transcript abundance, which is straightforwardly interpreted as reducing the sensitivity of gene expression to small random variation in the environment. This finding is consistent with the idea that underlying variability in gene expression might be mechanistically responsible for phenotypic robustness

Pictures From Life\u27s Other Side

Illustration of man and woman sitting together, two men fighting over a woman on ground, man reading newspaper while child looks at woman ironing clothing, and general on horse commanding soldiers; Illustrations of individual men and women\u27s faces below varied illustrationshttps://scholarsjunction.msstate.edu/cht-sheet-music/7918/thumbnail.jp

The Moonlight, the Rose and You

[Verse 1] The rose is asleep, she nods her head \u27Neath s bridal veil of dew, And dreaming she blushes rosey red, Caress\u27d by the moonlight so true; Would you I\u27d pluck the rose? Ah! no, Sad would the moon grow too, I\u27ve learned, dear, to love them long ago, The moonlight, the rose and you. [Refrain] Moonlight, roses, Come love, the world reposes, Why should we care tho\u27 years belong, You have my heart, I have your song; Moonlight, roses, Mem\u27ries the fond heart encloses. Dear dreams, near dreams, The moonlight, the rose and you. [Verse 2] A melody sweet the night wind sings, A melody ever new, The song that the silv\u27ry moonlight brings, The rose that is kiss\u27d by the dew; So would I sing to you for aye, Sing while the heart beats true, Just loving forever and a day, The moonlight, the rose and yo

Magic Polygons and Their Properties

Magic squares are arrangements of natural numbers into square arrays, where the sum of each row, each column, and both diagonals is the same. In this paper, the concept of a magic square with 3 rows and 3 columns is generalized to define magic polygons. Furthermore, this paper will examine the existence of magic polygons, along with several other properties inherent to magic polygons.Comment: 7 pages, 4 figure