In this task, you are given a abstract of article and corresponding title of an article. Your task is to generate label "yes" if title is right for article, otherwise generate "no".

Q: Abstract: T cell activation and function require a structured engagement of antigen-presenting cells. These cell contacts are characterized by two distinct dynamics in vivo: transient contacts resulting from promigratory junctions called immunological kinapses or prolonged contacts from stable junctions called immunological synapses. Kinapses operate in the steady state to allow referencing to self-peptide-MHC (pMHC) and searching for pathogen-derived pMHC. Synapses are induced by T cell receptor (TCR) interactions with agonist pMHC under specific conditions and correlate with robust immune responses that generate effector and memory T cells. High-resolution imaging has revealed that the synapse is highly coordinated, integrating cell adhesion, TCR recognition of pMHC complexes, and an array of activating and inhibitory ligands to promote or prevent T cell signaling. In this review, we examine the molecular components, geometry, and timing underlying kinapses and synapses. We integrate recent molecular and physiological data to provide a synthesis and suggest ways forward.. Title: Oxidant stress promotes disease by activating CaMKII.

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Q: Abstract: Clustered regularly interspaced short palindromic repeats (CRISPR)-Cas systems provide adaptive immunity against phage via spacer-encoded CRISPR RNAs that are complementary to invasive nucleic acids. Here, we challenge Streptococcus thermophilus with a bacteriophage, and used PCR-based metagenomics to monitor phage-derived spacers daily for 15 days in two experiments. Spacers that target the host chromosome are infrequent and strongly selected against, suggesting autoimmunity is lethal. In experiments that recover over half a million spacers, we observe early dominance by a few spacer sub-populations and rapid oscillations in sub-population abundances. In two CRISPR systems and in replicate experiments, a few spacers account for the majority of spacer sequences. Nearly all phage locations targeted by the acquired spacers have a proto-spacer adjacent motif (PAM), indicating PAMs are involved in spacer acquisition. We detect a strong and reproducible bias in the phage genome locations from which spacers derive. This may reflect selection for specific spacers based on location and effectiveness.. Title: E2F1-3 Switch from Activators in Progenitor Cells to Repressors in Differentiating Cells

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Q: Abstract: Purpose To evaluate the global trends in health burden of people visually impaired from cataract in terms of disability-adjusted life years (DALY) and its correlations with national levels of socioeconomic development. Methods Global, regional, and national DALY numbers, crude rate, and age-standardized rate of cataract vision loss by age and sex were obtained from the database of the Global Burden of Disease Study 2015. The human development index, per capita gross domestic product, and other country-level data were derived from international open databases. Regression analysis was used to assess the correlations between age-standardized DALY rate and socioeconomic variables. Results The global DALY numbers of cataract vision loss increased by 89.42%, from 2048.18 (95%CI [confidence interval]: 1457.60-2761.80) thousands in 1990 to 3879.74 (95% CI: 2766.07-5232.43) thousands in 2015 (P < 0.001). Females had higher DALY number 315.83 (95%CI: 237.17-394.4) and crude rate 38.29 (95%CI: 35.35-41.23) after adjusting for age and country (all P < 0.001). The age-standardized DALY rate was higher in countries with low human development index (HDI), with 91.03 (95%CI: 73.04-108.75) for low HDI, 81.67 (95%CI: 53.24-108.82) for medium HDI, 55.89 (95%CI: 36.87-69.63) for high HDI, and 17.10 (95%CI: 13.91-26.84) for very high HDI countries (P < 0.01), respectively. The national age-standardized DALY rates in 2015 were negatively associated with both HDI (R2 = 0.489, P < 0.001) and per capita gross domestic product (R2 = 0.331, P < 0.001). Stepwise multiple regression showed that HDI was significantly correlated with national age-standardized DALY rates in 2015 after adjusting for other confounding factors (P < 0.001). Conclusions The global health burden of vision loss due to cataract increased between 1990 and 2015 despite considerable efforts from the World Health Organization and VISION 2020 initiatives.. Title: Variations and Trends in Health Burden of Visual Impairment Due to Cataract: A Global Analysis.

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