TASK DEFINITION: In this task, you're given a paragraph and title from the research paper. Your task is to classify whether the given title is suitable or not for the research paper based on the given paragraph. Return "True" if title is proper according to paragraph else "False".
PROBLEM: Paragraph: We evaluated if interventions aimed at air travellers can delay establishment of a SARS-CoV-2 outbreak in a previously unaffected country. Methods: For countries with no sustained SARS-CoV-2 transmission and with no shared border with affected regions we simulated arriving infected air travellers. We assessed the effectiveness of syndromic screening at departure and/or arrival & traveller sensitisation to the COVID-2019-like symptoms with the aim to trigger rapid self-isolation and reporting on symptom onset to enable contact tracing. We assumed that syndromic screening would reduce the number of infected arrivals and that traveller sensitisation reduce the average number of secondary cases. We report the minimal expected delay achievable in 50% (75% & 97.5%) of simulations. In the simulations we account for uncertainty in the number of secondary cases in the absence of air traveller targeted interventions and the arrival times of infected cases and also present sensitivity analyses on arrival rates of infected travellers and the effectiveness of traveller sensitisation. Results: Under baseline assumptions exit and entry screening combined with traveller sensitisation can delay a local SARS-CoV-2 outbreak by at least 83 (75% of simulations: at least 36, 97.5% 8) days while there is no more than 1 infected traveller per week. The benefit of entry screening is small if exit screening is effective: the combination of only exit screening and traveller sensitisation can delay an outbreak by at least 76 (75%: 33, 97.5%: 7) days. With increasing rates of infected travellers, less effective sensitisation or without screening these delays shrink rapidly to a week or less. Conclusion: Syndromic screening and traveller sensitisation in combination could delay outbreaks in yet unaffected countries and support local containment efforts, but only if infected traveller numbers are very low. . CC-BY 4.0 International license It is made available under a author/funder, who has granted medRxiv a license to display the preprint in perpetuity. is the (which was not peer-reviewed) The copyright holder for this preprint .
Title: Title: Interventions targeting air travellers early in the pandemic may delay local outbreaks of SARS-CoV-2

SOLUTION: True

PROBLEM: Paragraph: Chitin is a linear polysaccharide of N-acetylglucosamine, which is highly abundant in nature and mainly produced by marine crustaceans. Chitosan is obtained by hydrolytic deacetylation. Both polysaccharides are renewable resources, simply and cost-effectively extracted from waste material of fish industry, mainly crab and shrimp shells. Research over the past five decades has revealed that chitosan, in particular, possesses unique and useful characteristics such as chemical versatility, polyelectrolyte properties, gel-and film-forming ability, high adsorption capacity, antimicrobial and antioxidative properties, low toxicity, and biocompatibility and biodegradability features. A plethora of chemical chitosan derivatives have been synthesized yielding improved materials with suggested or effective applications in water treatment, biosensor engineering, agriculture, food processing and storage, textile additives, cosmetics fabrication, and in veterinary and human medicine. The number of studies in this research field has exploded particularly during the last two decades. Here, we review recent advances in utilizing chitosan and chitosan derivatives in different technical, agricultural, and biomedical fields. A large number of chitosan-based composites were investigated for removal of metal ions from aqueous solutions. They include chitosan-polymer macromolecular complexes (as cellulose, cellulosic matrix like cotton fibers, alginate, polyvinyl alcohol, polyvinyl chloride), chitosan ceramics, as well as clay and silicate composites (bentonite, montmorillonite, perlite, and zeolite) (Wan Ngah et al. 2011) . Due to the vast number of scientific publications on chitosan-based adsorption that have been published, only a representative sample is depicted for Cr(VI) and Cu(II). Cognate composites were devised as adsorbents of other metal ions (Cd, As, Fe, Pb, Co, Pb, Hg, Ni, Zn, U) that can be found in the detailed reviews of Reddy and Lee (
Title: Chitin/Chitosan: Versatile Ecological, Industrial, and Biomedical Applications

SOLUTION: False

PROBLEM: Paragraph: DAP-related apoptotic kinase-2 (DRAK2), a DAP kinase family member, is highly expressed in B and T lymphocytes in the human and the mouse. To determine whether DRAK2 plays a role in B cell activation and differentiation, we analyzed germinal centers (GCs) and the specific antibody response to NP in drak2 / mice immunized with the thymus-dependent (TD) conjugated hapten NP 16 -CGG. In drak2 / mice, spleen GCs were normal in size and morphology, but their number was reduced by as much as five-fold, as compared to their wild-type littermates. This was not due to a defect in B cell proliferation, as the BrdU uptake was comparable in DRAK2-deficient and wild-type B cells. Rather, the proportion of apoptotic GC B and T cells in drak2 / mice was significantly higher than that in wild-type control mice, as shown by 7-AAD and TUNEL staining. In drak2 / mice, the generation of high affinity IgG antibodies was impaired in spite of the seemingly normal somatic hypermutation (SHM) and class switch DNA recombination (CSR) machineries in drak2 / B cells. In NP 16 -CGG-immunized drak2 / mice, T cell-intrinsic Bcl-xL transgene expression increased the number of GCs and rescued the high affinity IgG response to NP. These findings suggest a novel role for DRAK2 in regulating the GC reaction and the response to TD antigens, perhaps through increased survival of T cells and enhanced B cell positive selection. They also suggest that DRAK2-deficiency is not involved in regulating intrinsic B cell apoptosis.
Title: A role for DRAK2 in the germinal center reaction and the antibody response

SOLUTION:
False