ABSTRACT
El presente artículo explora las experiencias de movilidad restringida en personas migrantes venezolanas producto de las medidas gubernamentales para hacer frente a la pandemia en Colombia y Venezuela en la frontera. Desde un diseño narrativo y a través de entrevistas semiestructuradas realizadas entre mayo y septiembre del 2020, la revisión documental y hemerográfica, se determinó que Cúcuta y su área metropolitana se ha configurado en una díada de movilidad/inmovilidad propiciando el atrapamiento y ‘entrampamiento’ en ambos territorios. De este modo, la frontera se asume como productora de lógicas de diferenciación entre ciudadanos y migrantes, acentuadas a partir de la pandemia y la construcción del otro como amenaza de contagio de los dos países sumado a los procesos de securitización y sanitización como estrategias de reafirmación de la soberanía. En conclusión, la pandemia por Covid19 propició la gesta de una frontera restrictiva e inmovilizadora donde antes se mostraba un territorio de intercambio permanente y las personas migrantes se han convertido en sujeto de disputa de las tensas relaciones internacionales entre el gobierno venezolano y los países del continente americano.Alternate : This article explores the experiences of restricted mobility in Venezuelan migrants as a result of government measures to deal with the pandemic in Colombia and Venezuela at the border. From a narrative design and through semi-structured interviews carried out between May and September 2020, the documentary and hemerographic review, it was determined that Cúcuta and its metropolitan area have been configured in a mobility / immobility dyad, promoting entrapment and 'entrapment' processes in both territories. In this way, the border is assumed as a producer of differentiation logics between citizens and migrants, accentuated from the pandemic and the construction of the other as a threat of contagion from the two countries in addition to the securitization and sanitization processes as reaffirmation strategies. of sovereignty. In conclusion, the Covid19 pandemic led to the deed of a restrictive and immobilizing border;where before a territory of permanent exchange was shown and migrants have become a subject of dispute in the tense international relations between the Venezuelan government and the countries of the American continent.
ABSTRACT
The research looks into the impact of stock split announcements on stock prices and market efficiency in the Colombo Stock Exchange (CSE). This research uses a sample of 26 stock split announcements that occurred between 2020 and June 2021. According to the Global Industry Classification Standards, the stock split announcements covered in the study pertain to 26 businesses and 9 industries (GICS). To obtain the results, the usual event research methodology is used. The findings demonstrate significant average abnormal returns of 15.01 percent on the day the stock split news is made public and abnormal returns of 4.11 percent and -4.05 percent one day before and after the stock split announcement date, respectively. The study's findings revealed significant positive abnormal returns one day before the disclosure date, indicating information leakage, and significant negative abnormal returns the next day after the announcement date, indicating CSE informational efficiency. Because stock prices adapt so quickly to public information, these findings support the semi-strong form efficient market hypothesis, which states that investors cannot gain an abnormal return by trading in stocks on the day of the stock split announcement.
ABSTRACT
Background: As the Municipality Council area in Colombo (CMC) experienced the highest number of cases until the end of January 2021, in Sri Lanka, we carried out a serosurvey prior to initiation of the vaccination program to understand the extent of the SARS-CoV-2 outbreak. Methods: SARS-CoV-2 seropositivity was determined in 2,547 individuals between the ages of 10-86 years, by the Wantai total antibody ELISA. We also compared seroprevalence using the haemagglutination test (HAT) to evaluate its usefulness in carrying out serosurveys. Results: The overall seropositivity rate was 24.46%, while seropositivity by HAT was 18.90%. Although The SARS-CoV-2 infection detection rates by PCR were highest in the population between the ages of 20-60 years of age, there was no statistically significant difference in the seropositivity rates in different age groups. For instance, although the seropositivity rate was highest in the 10-20 age group (34.03%), the PCR positivity rate was 9.80%. Differences in the PCR positivity rates and seropositivity rates were also seen in 60-70-year-olds (8.90 vs. 30.4%) and in individuals >70 years (4.10 vs. 1.20%). The seropositivity rate of the females was 29.70% (290/976), which was significantly higher (p < 0.002) than in males 21.2% (333/1,571). Conclusions: A high seroprevalence rate (24.5%) was seen in all age groups in the CMC suggesting that a high level of transmission was seen during this time. The higher PCR positivity rates between the ages of 20-60 are likely to be due to increased testing carried out in the working population. Therefore, the PCR positivity rates, appear to underestimate the true extent of the outbreak and the age groups which were infected.