Given a passage classify if the passage has a definite objective/aim/goal or not. Output '1' if the passage has a defininte objective/aim/goal and output '0' if the passage does not have a definite objective/aim/goal.

Example Input: Matrix metalloproteinases (MMPs) play pivotal roles in tumor progression. MMP-13 (collagenase-3) digests collagen and other extracellular components.', 'Reverse transcriptase-polymerase chain reaction (RT-PCR), immunohistochemistry and zymograph were used to study the roles of MMP-13 during the neoplastic process of oral squamous cell carcinoma (OSCC).', 'Increase of MMP-13 mRNA and protein expression in OSCC cell lines relative to cultivated normal oral keratinocytes was found. MMP-13 mRNA expression in OSCC was significantly higher than in non-cancerous match tissue (NCMT) in 36 tissue pairs. Esophageal squamous cell carcinoma also exhibited high MMP-13 mRNA expression. The percentage of OSCC exhibiting strong MMP-13 immunoreactivity was significantly higher than pre-invasive lesion and NCMT. Treatment with >5 microm epigallocatechin-3-gallate (EGCG) to OEC-M1 cells suppressed the expression and activity of MMP-13.
Example Output: 0

Example Input: Endothelin receptor antagonists improve pulmonary arterial hypertension (PAH). Mutations in the bone morphogenetic protein (BMP) type 2 receptor (BMPR2) predispose to PAH. Here, we sought to determine whether there might exist interactions between these 2 signaling pathways and their effect on the acquisition of the altered phenotype of pulmonary artery smooth muscle cells (PA-SMCs) observed in PAH.', 'Expression of BMPR2, of the BMP agonist BMP4, and of the BMP antagonists gremlin1 and gremlin2 was evaluated in lungs and in PA-SMCs from 6 PAH patients and 14 controls treated with endothelin-1. Endothelin-1 pre-treated PA-SMCs were assessed for proliferation, apoptosis, and downstream signaling activation of Smad1/5/8 and p38 mitogen-activated protein kinase (p38(MAPK)) after BMP2 treatment.', 'In PA-SMCs from PAH patients, expression of BMPR2 and BMP4 decreased, whereas expression of gremlin1 and gremlin2 increased compared with controls. Treatment of control PA-SMCs with endothelin-1 induced a dose-dependent increase in gremlin1 and gremlin2, whereas BMPR2 and BMP4 expression decreased, reaching similar levels as those observed in PAH cells. In control PA-SMCs, endothelin-1 pre-treatment reduced inhibitor of DNA binding 1 (Id1) expression and Smad1/5/8 activation induced by BMP2, whereas it enhanced p38(MAPK) activation. Moreover, BMP2 decreased serum-induced proliferation and increased the pro-apoptotic Bax/Bcl-2 ratio. These effects were attenuated by endothelin-1 pre-treatment. Endothelin-1 did not alter BMPR2 signaling in PA-SMCs from PAH patients.
Example Output: 0

Example Input: Protocols call for the start of hormonal therapy with levothyroxine after the declaration of brain death. As the hormonal perturbations occur during the process of brain death, the role of the early initiation of levothyroxine therapy (LT) to salvage organs is not well defined. The aim of this study was to evaluate the impact of early LT (before the declaration of brain death) on the number of solid organs procured per donor.', 'We performed an 8-year retrospective analysis of all trauma patients who progressed to brain death. Patients who consented for organ donation, received LT, and donated solid organs were included. Patients were dichotomized into two groups: early LT group, patients who received LT before the declaration of brain death, and late LT group, those who received LT after brain death. The two groups were compared for differences in demographics, clinical characteristics, need for vasopressor, and number of solid organ donation.', 'A total of 100 solid organ donors were identified of which, 41% (n=77) donors who received LT therapy were included. LT before the declaration of brain death was initiated in 37 patients compared with 40 patients who had it started after the declaration of brain death. There was no difference in demographics between the two groups except that patients in the early LT group were more likely to be hypotensive on presentation (54% vs. 25%, p = 0.001). Early LT therapy was associated with an increase in solid organ procurement rate (odds ratio, 1.9; 95% confidence interval, 1.4-2.7; p = 0.01). Sixty-seven patients donated a total of 291 solid organs.
Example Output:
0