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Abbas, E.,Abelev, B.,Adam, J.,Adamová,, D.,Adare, A. M.,Aggarwal, M. M.,Aglieri Rinella, G.,Agnello, M.,Agocs, A. G.,Agostinelli, A.,Ahammed, Z.,Ahmad, N.,Ahmad Masoodi, A.,Ahmed, I.,Ahn, S. A. Springer Berlin Heidelberg 2013 The European physical journal. C, Particles and fi Vol.73 No.11
<P>The ALICE Collaboration at the LHC has measured the J/<I>ψ</I> and <I>ψ</I>′ photoproduction at mid-rapidity in ultra-peripheral Pb–Pb collisions at [FORMULA OMISSION].</P><P>The charmonium is identified via its leptonic decay for events where the hadronic activity is required to be minimal. The analysis is based on an event sample corresponding to an integrated luminosity of about 23 μb<SUP>−1</SUP>. The cross section for coherent and incoherent J/<I>ψ</I> production in the rapidity interval −0.9<<I>y</I><0.9, are [FORMULA OMISSION] and [FORMULA OMISSION], respectively. The results are compared to theoretical models for J/<I>ψ</I> production and the coherent cross section is found to be in good agreement with those models incorporating moderate nuclear gluon shadowing at Bjorken-<I>x</I> around 10<SUP>−3</SUP>, such as EPS09 parametrization. In addition the cross section for the process <I>γγ</I>→<I>e</I><SUP>+</SUP><I>e</I><SUP>−</SUP> has been measured and found to be in agreement with models implementing QED at leading order.</P>
Corrosion Behavior Optimization by Nanocoating Layer for Low Carbon Steel in Acid and Salt Media
( Ahmed S. Abbas ),( Bahaa Sami Mahdi ),( Haider H. Abbas ),( F. F. Sayyid ),( A. M. Mustafa ),( Iman Adnan Annon ),( Yasir Muhi Abdulsahib ),( A. M. Resen ),( M. M. Hanoon ),( Nareen Hafidh Obaeed ) 한국부식방식학회 2023 Corrosion Science and Technology Vol.22 No.1
In this paper, a SiC nano electroless nickel plating layer with excellent corrosion resistance was fabricated using the Taguchi method. The electroless plated low carbon steel was subjected to tests to examine the influence of corrosive media, microhardness, and corrosion rate on the corrosion resistance of this alloy. Three different corrosive media (HCl, Na<sub>2</sub>SO<sub>4</sub>, and NaCl) at various temperatures (80, 90, and 100 ℃) were used, and at three different times (40, 80, and 120 min.) with a speed of stirring equal to 500 rpm. The results of microhardness were found from 134.276 HV to 278.578 HV at various conditions, while the corrosion rate results were obtained from 0.89643 mpy to 7.12571 mpy at different circumstances. Corrosion, and mechanical characteristics were explained using Taguchi design. Taguchi technique was used to account for all possible combinations of elements in order to conduct a complete study. Models that link the response and procedure parameters were developed using the results of these tests, and the analysis of variance was utilized to validate these models (ANOVA). For maximum efficiency, a function called “desirability” was applied to all responses at once.
Elnemr, Gamal M,El-Rashidy, Ahmed H,Osman, Ahmed H,Issa, Lotfi F,Abbas, Osama A,Al-Zahrani, Abdullah S,El-Seman, Sheriff M,Mohammed, Amrallah A,Hassan, Abdelghani A Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.2
Triple-negative breast cancers constitute about 15% of all cases, but despite their higher response to neoadjuvant chemotherapy, the tumors are very aggressive and associated with a poor prognosis as well as a higher risk of early recurrence. This study was retrospectively performed on 101 patients with stage II and III invasive breast cancer who received 6-8 cycles of neo-adjuvant chemotherapy. Out of the total, 23 were in the triple negative breast cancer subgroup. Nuclear Ki-67 expression in both the large cohort group (n=101) and triple negative breast cancer subgroup (n=23) and its relation to the pathological response were evaluated. The purpose of the study was to identify the predictive value of nuclear protein Ki-67 expression among patients with invasive breast cancers, involving the triple negative breast cancer subgroup, treated with neoadjuvant chemotherapy in correlation to the rate of pathological complete response. The proliferation marker Ki-67 expression was highest in the triple negative breast cancer subgroup. No appreciable difference in the rate of Ki-67 expression in triple negative breast cancer subgroup using either a cutoff of 14% or 35%. Triple negative breast cancer subgroup showed lower rates of pathological complete response. Achievement of pathological complete response was significantly correlated with smaller tumor size and higher Ki-67 expression. The majority of triple negative breast cancer cases achieved pathological partial response. The study concluded that Ki-67 is a useful tool to predict chemosensitivity in the setting of neoadjuvant chemotherapy for invasive breast cancer but not for the triple negative breast cancer subgroup.