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"EL PROBLEMA A SOLUCIONAR En Europa, y particularmente en España y Portugal, el público, los responsables de la gestión y otros grupos clave relacionados con especies exóticas invasoras (EEI) tienen una comprensión sesgada de las amenazas y problemática planteada por estas EEI. Esto dificulta la movilización de sectores relevantes y otras partes interesadas para su gestión y control, especialmente con introducciones que no afectan la salud humana o a intereses económicos importantes. Las EEI y sus impactos no se conocen lo suficiente y se consideran con frecuencia con un escaso efecto socioeconómico.   El proyecto LIFE INVASAQUA (LIFE17 GIE/ES/000515), financiado por el programa LIFE, tiene como principal objetivo apoyar la comunicación, la formación y la difusión de información sobre las Especies Exóticas Invasoras (EEI) acuáticas en España y Portugal."

Comic Life, descargar gratis. Comic Life 1.3.8: Crea originales comics con tus propias fotografías. Existen muchos programa para crear presentaciones y álbumes con tus propias fotos, pero pocos tan originales

"The transition from unicellular to multicellular life was one of a few major events in the history of life that created new opportunities for more complex biological systems to evolve. Predation is hypothesized as one selective pressure that may have driven the evolution of multicellularity. Here we show that de novo origins of simple multicellularity can evolve in response to predation. We subjected outcrossed populations of the unicellular green alga Chlamydomonas reinhardtii to selection by the filter-feeding predator Paramecium tetraurelia. Two of five experimental populations evolved multicellular structures not observed in unselected control populations within ~750 asexual generations. Considerable variation exists in the evolved multicellular life cycles, with both cell number and propagule size varying among isolates. Survival assays show that evolved multicellular traits provide effective protection against predation. These results support the hypothesis that selection imposed by predators may have played a role in some origins of multicellularity."

"No country in the world currently meets the basic needs of its citizens at a globally sustainable level of resource use. Our research, recently published in Nature Sustainability (and summarised in The Conversation), is the first to quantify the national resource use associated with achieving a good life for over 150 countries. It shows that meeting the basic needs of all people on the planet would result in humanity transgressing multiple environmental limits, based on current relationships between resource use and human well-being. The chart below demonstrates the profound challenge nations currently face. National performance on seven environmental sustainability indicators is plotted against eleven minimum social thresholds for a good life (see About page for further details). Ideally, nations would be located in the top-left corner with no biophysical boundaries transgressed and all minimum social thresholds achieved."

"The Real Life Social Network v2"

"Carbon dioxide (CO2) is a gas essential for life- animals exhale it, plants sequester it. It exists in Earth's atmosphere in comparably small concentrations, but is vital for sustaining life. CO2 is termed a greenhouse gas (GHG) - a gas which absorbs and emits thermal radiation creating the 'greenhouse effect'. Along with other greenhouse gases, such as nitrous oxide and methane, CO2 is important in sustaining a habitable temperature for the planet: if there were absolutely no GHGs, our planet would be simply too cold. It has been estimated that without these gases, the average surface temperature of the Earth would be about -18 degrees celcius.1 Since the Industrial Revolution, however, energy-driven consumption of fossil fuels has led to a rapid increase in emissions of CO2, disrupting the global carbon cycle and leading to a planetary warming impact. As an international community, UN member parties have set a target of limiting average warming to 2 degrees celcius above pre-Industrial temperatures."

The Mars 2020 Perseverance Rover will search for signs of ancient microbial life, which will advance NASA's quest to explore the past habitability of Mars. The rover has a drill to collect core samples of Martian rock and soil, then store them in sealed tubes for pickup by a future mission that would ferry them back to Earth for detailed analysis. Perseverance will also test technologies to help pave the way for future human exploration of Mars. Strapped to the rover's belly for the journey to Mars is a technology demonstration - the Mars Helicopter, Ingenuity, may achieve a "Wright Brothers moment " by testing the first powered flight on the Red Planet. Searching for Ancient Life, Gathering Rocks and Soil There are several ways that the mission helps pave the way for future human expeditions to Mars and demonstrates technologies that may be used in those endeavors. These include testing a method for producing oxygen from the Martian atmosphere, identifying other resources (such as subsurface water), improving landing techniques, and characterizing weather, dust, and other potential environmental conditions that could affect future astronauts living and working on Mars.

"Generating electricity is not only inefficient, it also makes pedal power less sustainable, less robust and more costly. To begin with, batteries have to be manufactured, and they have to be replaced regularly. This requires energy, which can completely negate the ecological advantage of pedal power. According to this research paper (pdf), the embodied energy of a 150Wh lead-acid battery (like the one offered with the Windstream pedal power generator) is at least 37,500 Wh, which equals 250 full charges of the battery (more sources: 1/2). In other words: if you can deliver 75 watts of power to the battery, you have to pedal for 500 hours in order to generate the energy that was needed to manufacture the battery. Because the life expectancy of a lead-acid battery can be as low as 300 discharge/charge cycles (sources: 1/2), you are basically pedalling to produce the energy required to manufacture the battery. If you also factor in the embodied energy of other electronics and parts, the ecological advantage of a pedal powered generator connected to a battery becomes rather doubtful. It might costs more energy than it delivers."

"Generating electricity is not only inefficient, it also makes pedal power less sustainable, less robust and more costly. To begin with, batteries have to be manufactured, and they have to be replaced regularly. This requires energy, which can completely negate the ecological advantage of pedal power. According to this research paper (pdf), the embodied energy of a 150Wh lead-acid battery (like the one offered with the Windstream pedal power generator) is at least 37,500 Wh, which equals 250 full charges of the battery (more sources: 1/2). In other words: if you can deliver 75 watts of power to the battery, you have to pedal for 500 hours in order to generate the energy that was needed to manufacture the battery. Because the life expectancy of a lead-acid battery can be as low as 300 discharge/charge cycles (sources: 1/2), you are basically pedalling to produce the energy required to manufacture the battery. If you also factor in the embodied energy of other electronics and parts, the ecological advantage of a pedal powered generator connected to a battery becomes rather doubtful. It might costs more energy than it delivers."

1. The Primordial Soup 2. Deep-Sea Vents 3. Panspermia 4. The Deep-Hot Biosphere Theory 5. The Radioactive Beach Hypothesis

1. The Primordial Soup 2. Deep-Sea Vents 3. Panspermia 4. The Deep-Hot Biosphere Theory 5. The Radioactive Beach Hypothesis

"Back in the 1980s, a group of social workers in Jamaica visited low-income homes one hour a week for two years, bearing age-appropriate toys for the kids and advice on child rearing for the parents. Researchers tracked the outcomes, and a generation later, the results are in. The children whose homes were visited by social workers became adults who earn wages that are 25 percent higher than those earned by peers who had not been visited. Their I.Q.s are an average seven points higher, and they are less likely to resort to crime or suffer from depression. Other studies, including several recent ones in the United States, have shown similar results, contributing to a consensus on the importance of early childhood development that has led governments around the world to increase spending on the first five years of life. In Latin America and the Caribbean, a region of longstanding social and economic inequality, several countries have been especially ambitious. Brazil and Chile doubled the coverage of day care services over the past decade, while in Ecuador they grew sixfold. These investments build on historic gains in child nutrition and health. But while Latin American children are now healthier and more likely to attend preschool, they still lag far behind in learning, particularly in the areas of language and cognition, when compared with their counterparts in wealthy countries. What are we doing wrong? ..."

"Back in the 1980s, a group of social workers in Jamaica visited low-income homes one hour a week for two years, bearing age-appropriate toys for the kids and advice on child rearing for the parents. Researchers tracked the outcomes, and a generation later, the results are in. The children whose homes were visited by social workers became adults who earn wages that are 25 percent higher than those earned by peers who had not been visited. Their I.Q.s are an average seven points higher, and they are less likely to resort to crime or suffer from depression. Other studies, including several recent ones in the United States, have shown similar results, contributing to a consensus on the importance of early childhood development that has led governments around the world to increase spending on the first five years of life. In Latin America and the Caribbean, a region of longstanding social and economic inequality, several countries have been especially ambitious. Brazil and Chile doubled the coverage of day care services over the past decade, while in Ecuador they grew sixfold. These investments build on historic gains in child nutrition and health. But while Latin American children are now healthier and more likely to attend preschool, they still lag far behind in learning, particularly in the areas of language and cognition, when compared with their counterparts in wealthy countries. What are we doing wrong? ..."

"Max Roser (2016) - 'World Poverty'. Published online at OurWorldInData.org. Retrieved from: http://ourworldindata.org/data/growth-and-distribution-of-prosperity/world-poverty/ In the past only a small elite lived a life without poverty. Since the onset of industrialization - and as a consequence of this, economic growth1 - the share of people living in poverty started decreasing and has kept on falling ever since. But as a consequence of falling poverty, the health of the population improved dramatically over the last two centuries, and the population started to grow.2 The growth of the population caused the absolute number of poor people in the world to increase; only recently has the absolute number of people living in poverty started to fall as well. This data entry chronicles the falling poverty over the last centuries."

"Max Roser (2016) - 'World Poverty'. Published online at OurWorldInData.org. Retrieved from: http://ourworldindata.org/data/growth-and-distribution-of-prosperity/world-poverty/ In the past only a small elite lived a life without poverty. Since the onset of industrialization - and as a consequence of this, economic growth1 - the share of people living in poverty started decreasing and has kept on falling ever since. But as a consequence of falling poverty, the health of the population improved dramatically over the last two centuries, and the population started to grow.2 The growth of the population caused the absolute number of poor people in the world to increase; only recently has the absolute number of people living in poverty started to fall as well. This data entry chronicles the falling poverty over the last centuries."

Las 3 reglas de @ramusallam: 1 la curiosidad va primero 2 aceptar el desastre 3 practicar la reflexión "It took a life-threatening condition to jolt chemistry teacher Ramsey Musallam out of ten years of "pseudo-teaching" to understand the true role of the educator: to cultivate curiosity. In a fun and personal talk, Musallam gives 3 rules to spark imagination and learning, and get students excited about how the world works. "

Las 3 reglas de @ramusallam: 1 la curiosidad va primero 2 aceptar el desastre 3 practicar la reflexión "It took a life-threatening condition to jolt chemistry teacher Ramsey Musallam out of ten years of "pseudo-teaching" to understand the true role of the educator: to cultivate curiosity. In a fun and personal talk, Musallam gives 3 rules to spark imagination and learning, and get students excited about how the world works. "

SLOODLE is a free and open source project which integrates the multi-user virtual environments of Second Life® and/or OpenSim with the Moodle® learning-management system.

"Close Reading and Argument Writing - Authentically Across the Curriculum 7/16/2015 0 Comments Close reading of informational texts and non-fiction articles is not - and should not be - reserved for language arts classes. Every content area would be immensely enhanced if science teachers, social studies teachers, physical education teachers, welding teachers, woodworking teachers (in other words, "all technical subjects," as Common Core states) would not push aside the textbook, but instead embrace it, along with content area and trade articles. Students would then simultaneously learn how to dissect the readings while gaining knowledge in these content areas. What often happens is that teachers feel that students can't handle the text books or can't read the articles independently - and often that is true. However, when teachers instead go into a survival mode, of sorts, and read aloud the whole chapter or article or summarize it with a slideshow, it ends up doing a disservice to students - students are not learning HOW to read these complex texts. They are not learning how to acquire the information on their own. They are not being given the skills to read the sometimes intricate information within a particular content area or even within their possible future trade. They are not being given the opportunity to read, understand, articulate, and discuss or even debate topics within their area of study. Teachers sometimes feel that they can't do these things with students because they are not language arts teachers, or because they don't have time, or simply because they don't know how. Alternatively, a simple solution is to let go of the control and let students do…..with the guidance called close reading. Close reading is a guided reading approach. It is guided because 1) the close reading strategy is reserved for complex texts that are often too high for students to be left with independently and 2) students don't use close reading strateg

Tapas minimalistas de libros animadas, video

"This book YOUNG & CREATIVE - Digital Technologies Empowering Children in Everyday Life aims to catch different examples where children and youth have been active and creative by their own initiative, driven by intrinsic motivation, personal interests and peer relations. We want to show the opportunities of digital technologies for creative processes of children and young people. The access to digital technology and its growing convergence has allowed young people to experiment active roles as cultural producers. Participation becomes a keyword when "consumers take media into their own hands". Digital technologies offer the potential of different forms of participatory media culture, and finally creative practices. YOUNG and CREATIVE is a mix of research articles, interviews and case studies. The target audience of this book is students, professionals and researchers working in the field of education, communication, children and youth studies, new literacy studies and media and information literacy."

"Because energy fuels both human development and environmental damage, policies that encourage energy demand reduction can run counter to policies for alleviating poverty, and the other way around. Achieving both objectives can only happen if energy use is spread more equally across societies. However, while it's widely acknowledged that part of the global population is living in 'energy poverty', there's little attention given to the opposite condition, namely 'energy excess' or 'energy decadence'. Researchers have calculated minimum levels of energy use needed to live a decent life, but what about maximum levels? "

"A young girl's life gets turned upside-down in this tragic second a day video. "

"As I've pointed out previously, I doubt there will be a human on Earth by mid-2026. Indeed, I doubt there will be complex life on this planet by then. It'll be a small world, as was the case in the wake of each of the five prior Mass Extinction events on Earth. Bacteria, fungi, and microbes will dominate."