lunes, 31 de agosto de 2015
¿Qué pasa cuando comemos?
En Biología empezamos a estudiar el sistema digestivo y sus distintos organos y funciones. A continuación, adjuntaré un trabajo hecho en Thinglink, en el cual muestro a través de unos puntos señalados en una imagen las distintas tareas del sistema digestivo.
martes, 18 de agosto de 2015
Mirá mamá, ¡estoy en la tele!
El proyecto "Donar es amar", iniciado en el 2011, fue un proyecto creado con el afán de invitar a reflexionar sobre la necesidad de donar órganos y conocer cuándo y cómo es posible hacerlo. Fue un proyecto tan masivo, que el programa de noticias del Canal 13, "TN", hizo una nota sobre esta concientización. Los periodistas de dicho programa hicieron preguntas a los alumnos, a la docente creadora de la idea y al fundador de la F.A.T.H. (Fundación Argentina de Trasplante Hepático) sobre que trataba el conocido "Donar es amar". También se muestra en la nota como se han subastado esculturas en forma de corazón y como se hizo un encuentro coral para recaudar fondos para el ya mencionado proyecto. En mi opinión, creo que la gente que trabaja en el Canal 13 ha hecho un gran acto de bondad al difundir el proyecto por los distintos medios, tales como el Internet y la televisión, ya que sin ellos, habría bastante gente que probablemente no se hubiera enterado sobre la existencia de este acto de amor y caridad como lo es "Donar es amar".
domingo, 9 de agosto de 2015
Climates summary
EQUATORIAL CLIMATE: It's located in the Equator, five degrees north and five degrees south exactly. There's not a dry season or a wet season, but anyhow, some months can be drier than others. Temperatures are high and constant, with an annual range of 2ºC approximately, as the sun is always at a high angle in the sky. Furthermore, the climate stays wet during the whole year, with an average rainfall of 2000/2500 mm. Winds in this climate, are light and variable. The most important characteristic of this climate is it's daily pattern, what means that, once the sun rises, the heat starts evaporating all the moisture from the rain from the previous day. By midday temperatures can reach 33ºC, so air goes up and starts creating clouds with the moisture it brings. In the afternoon, this clouds are turned into "Cumulonimbus", and they precipitate in long thunderstorms. When the night reaches, rain had stopped. This cycle occurs every day, and that's why it's called "daily pattern".
TROPICAL (INTERIOR) CONTINENTAL CLIMATE: The tropical continental climate, also named tropical interior climate, is located inside the continent, away from coasts, between five and fifteen degrees north and south of the Equator. Unlike the Equatorial climate, this one has a big change between the cool and dry season and the hot and wet season. In the first one mentioned before, the sun is overhead to the opposite hemisphere, causing temperature to decrease and the incoming winds take away all the moisture left by the other season. Nevertheless, in the hot and wet season, as the sun points directly to the land, the temperatures increase, producing high precipitations. Both seasons are a result of the sun positioning. Anyway, the average temperature is 31ºC.
MONSOON CLIMATE: Monsoon means "seasons" which refers to the two main seasons in this climates: the south-west monsoon and the north-east monsoon. The south-west monsoon is located in the north of the Himalayas, where it is completely hot because the sun hits directly this region. As a consequence, air goes up and a region of low pressure is created.When moisture reach the mountains, the air goes up and it gets higher, it cools and it precipitates. However, the north-east monsoon is created when the sun heats to the south instead of heating in the north. In this way, an area of high pressure is formed at the north of the Himalayas, so winds try to "escape. This winds come from the land, and as a result, they are dry, what means that they don't produce rainfalls. This two seasons are determined by the reversal in the wind direction. Furthermore, this climate is located in South-east region of Asia.
HOT DESERT CLIMATE: Hot deserts are located on the west side of the continents between five and thirty degrees north and south from the Equator. This climates have a high evapotranspiration, which is the evaporated water from plants, animals, land and oceans. In addition, this regions have high temperatures when the sun hits them directly, and lower temperatures when the sun is in the opposite hemisphere. Whatsmore, coastal areas are cooler because of the influence of the sea and the offshore currents. While the inland temperatures can reach 50ºC during the day, during the night temperatures are extremely cold, because there aren't clouds to retain the heat. Moreover, deserts have scarce precipitation of approximately 250/300 mm for two reasons: Cold winds come from the sea with no or little moisture, and the winds come from the lands, so they don't bring any moisture either, or if not, winds have to cross mountain ranges, creating rain shadows.
COLD CLIMATES: The cold climates can be found in the northern hemisphere, poleward side, 60ºC north of the Equator. In this climate, winters are incredibly cold, with almost no day-light and short summers with long hours of day-light which create high temperatures. Precipitation in this regions, they aren't heavy because, as the air is freezing, it can't retain moisture and as these regions are far away from the sea, winds don't carry moist. Because of this precipitation, rain fall as snow or sometimes, even as hail.
TROPICAL (INTERIOR) CONTINENTAL CLIMATE: The tropical continental climate, also named tropical interior climate, is located inside the continent, away from coasts, between five and fifteen degrees north and south of the Equator. Unlike the Equatorial climate, this one has a big change between the cool and dry season and the hot and wet season. In the first one mentioned before, the sun is overhead to the opposite hemisphere, causing temperature to decrease and the incoming winds take away all the moisture left by the other season. Nevertheless, in the hot and wet season, as the sun points directly to the land, the temperatures increase, producing high precipitations. Both seasons are a result of the sun positioning. Anyway, the average temperature is 31ºC.
MONSOON CLIMATE: Monsoon means "seasons" which refers to the two main seasons in this climates: the south-west monsoon and the north-east monsoon. The south-west monsoon is located in the north of the Himalayas, where it is completely hot because the sun hits directly this region. As a consequence, air goes up and a region of low pressure is created.When moisture reach the mountains, the air goes up and it gets higher, it cools and it precipitates. However, the north-east monsoon is created when the sun heats to the south instead of heating in the north. In this way, an area of high pressure is formed at the north of the Himalayas, so winds try to "escape. This winds come from the land, and as a result, they are dry, what means that they don't produce rainfalls. This two seasons are determined by the reversal in the wind direction. Furthermore, this climate is located in South-east region of Asia.
HOT DESERT CLIMATE: Hot deserts are located on the west side of the continents between five and thirty degrees north and south from the Equator. This climates have a high evapotranspiration, which is the evaporated water from plants, animals, land and oceans. In addition, this regions have high temperatures when the sun hits them directly, and lower temperatures when the sun is in the opposite hemisphere. Whatsmore, coastal areas are cooler because of the influence of the sea and the offshore currents. While the inland temperatures can reach 50ºC during the day, during the night temperatures are extremely cold, because there aren't clouds to retain the heat. Moreover, deserts have scarce precipitation of approximately 250/300 mm for two reasons: Cold winds come from the sea with no or little moisture, and the winds come from the lands, so they don't bring any moisture either, or if not, winds have to cross mountain ranges, creating rain shadows.
COLD CLIMATES: The cold climates can be found in the northern hemisphere, poleward side, 60ºC north of the Equator. In this climate, winters are incredibly cold, with almost no day-light and short summers with long hours of day-light which create high temperatures. Precipitation in this regions, they aren't heavy because, as the air is freezing, it can't retain moisture and as these regions are far away from the sea, winds don't carry moist. Because of this precipitation, rain fall as snow or sometimes, even as hail.
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