The Biological Resources M.Sc. degree programme combines the advanced study of the natural sciences with relevant interdisciplinary subjects such as engineering and socio-economics to impart the knowledge and the critical eye to evaluate the future potential of certain biological resources in a scientific manner. This expertise is crucial in countless real-world applications, for example in the development of ‘bio-based products’ such as bioenergy, biopackaging, bioplastic or new sources of food, to name a few.
Views: 1101 Hochschule Rhein-Waal
Stories of Science - Building affordable homes using local biological resources People in rural India live in traditional ‘mud’ or ‘earth’ houses, houses made with soil. This material is not water-resistant and, over time, rain causes the walls to crumble. PhD-student Yask Kulshreshtha (TU Delft) wants this to change and is trying to develop materials made out of local biological resources that makes mud walls water-resistant. His aim is to build earth houses that are affordable, durable and desirable. More information in the full Story of Science: http://ow.ly/6cch30ntHGH Faculty Civil Engineering & Geosciences Discover all Stories of Science: https://www.tudelft.nl/en/ceg/research/stories-of-science/ Follow us on Twitter: https://twitter.com/TUDelft_CT
Views: 1087 TU Delft
by Fikri A Rafani, Intern from University Islam Antarabangsa Malaysia
Views: 557 MENGO
Hank teaches us why water is one of the most fascinating and important substances in the universe. Follow SciShow on Twitter: http://www.twitter.com/scishow Like SciShow on Facebook: http://www.facebook.com/scishow Review: Re-watch = 00:00 Introduction = 00:42 Molecular structure & hydrogen bonds = 01:38 Cohesion & surface tension = 02:46 Adhesion = 03:31 Hydrophilic substances = 04:42 Hydrophobic substances = 05:14 Henry Cavendish = 05:49 Ice Density = 07:45 Heat Capacity = 09:10 Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-Series-DVD-Set Citations: http://www.extension.umn.edu/distribution/youthdevelopment/components/0328-02.html http://www.uni.edu/~iowawet/H2OProperties.html http://www.hometrainingtools.com/properties-water-science-teaching-tip/a/1274/ http://science.howstuffworks.com/environmental/earth/geophysics/h2o7.htm http://www.robinsonlibrary.com/science/chemistry/biography/cavendish.htm http://chemistry.mtu.edu/~pcharles/SCIHISTORY/HenryCavendish.html http://www.nndb.com/people/030/000083778/ http://www.notablebiographies.com/Ca-Ch/Cavendish-Henry.html TAGS: water, hydrogen, oxygen, molecule, covalent bond, cohesion, adhesion, polarity, hydrogen bond, surface tension, capillary action, hydrophilic, hydrophobic, ionic bond, ion, universal solvent, henry cavendish, chemistry, specific gravity, density, heat capacity, evaporation, biology, crashcourse, crash course, hank green Support CrashCourse on Subbable: http://subbable.com/crashcourse
Views: 3168830 CrashCourse
County of Calaveras Biological Resources Information Program Presentation for the Stagecoach Road Low Water Crossing Replacement Project
Views: 48 Alluvion Biological Consulting
Santa Clara Valley Water District's Cunningham Flood Detention Project Biological Resources Information Program
Views: 21 Alluvion Biological Consulting
011 - Biogeochemical Cycles In this video Paul Andersen explains how biogeochemical cycles move required nutrients through the abiotic and biotic spheres on our planet. Matter on the Earth is conserved so producers must receive required nutrients through the water cycle, carbon cycle, nitrogen cycle, phosphorus cycle, and sulfur cycle. Do you speak another language? Help me translate my videos: http://www.bozemanscience.com/translations/ Music Attribution Intro Title: I4dsong_loop_main.wav Artist: CosmicD Link to sound: http://www.freesound.org/people/CosmicD/sounds/72556/ Creative Commons Atribution License Outro Title: String Theory Artist: Herman Jolly http://sunsetvalley.bandcamp.com/track/string-theory All of the images are licensed under creative commons and public domain licensing: Alpine Landscape Cone Top Rock 01b Al1By Glitch, n.d. https://openclipart.org/detail/208714/alpine-landscape-cone-top-rock-01b-al1. balin, jean victor. Cartoon Cloud, December 2, 2009. . https://commons.wikimedia.org/wiki/File:Cartoon_cloud.svg. Cow by Newtonguarinof, n.d. https://openclipart.org/detail/10433/cow. Factory By Anonymous, n.d. https://openclipart.org/detail/23962/factory. Georgerhoads. English: Archimedean Excogitation, Located in Boston MA., August 1, 2014. Own work. https://commons.wikimedia.org/wiki/File:Archimedean_Excogitation.jpg. ———. English: This Is an Earlier Photo of George Rhoads Working on One of His Rolling Ball Sculptures., August 28, 2013. Own work. https://commons.wikimedia.org/wiki/File:George_Rhoads_working_on_ball_machine.jpg. ———. English: This Is a Sketch of One of the Ball Machines Created by George Rhoads, Earthworks., September 12, 2014. Own work. https://commons.wikimedia.org/wiki/File:Earthworks.jpg. Lab", This image has been created during “DensityDesign Integrated Course Final Synthesis Studio” at Polytechnic University of Milan, organized by DensityDesign Research Lab Image is released under CC-BY-SA licence Attribution goes to "Roberta Rosina, DensityDesign Research. English: “A Food Web Consists of All the Food Chains in a Single Ecosystem” [Cit. National Geographic Education], December 1, 2014. Own work. https://commons.wikimedia.org/wiki/File:Food_Web.svg. Simple Tree 2 By Merlin2525, n.d. https://openclipart.org/detail/125665/simple-tree-2. Volcano3 By Merilynw, n.d. https://openclipart.org/detail/190587/volcano3.
Views: 389787 Bozeman Science
Subject:Environmental Sciences Paper: Water resources and management
Views: 696 Vidya-mitra
Advance your industry knowledge and expertise with All Things Water video courses featuring water treatment processes, water sector innovations, environmental challenges and public policies impacting the water industry. The first video in this series covers the activated sludge process, the main secondary biological process used in virtually all wastewater treatment plants worldwide.
Views: 229950 blacoh
This is introductory lecture on a CBSE Class 10th topic - Management of Natural Resources. This chapter is divided into 6 lectures, so make sure you watch the other five lectures for a better understanding. Link to more videos on various topics - http://bit.ly/2gqvRG9
Views: 298117 PuStack
View full lesson: http://ed.ted.com/lessons/why-is-biodiversity-so-important-kim-preshoff Our planet’s diverse, thriving ecosystems may seem like permanent fixtures, but they’re actually vulnerable to collapse. Jungles can become deserts, and reefs can become lifeless rocks. What makes one ecosystem strong and another weak in the face of change? Kim Preshoff details why the answer, to a large extent, is biodiversity. Lesson by Kim Preshoff, animation by TED-Ed.
Views: 1032866 TED-Ed
Explore some properties of water with the Amoeba Sisters! It's all about those hydrogen bonds. Video has handout: http://www.amoebasisters.com/handouts Terms discussed include adhesion, cohesion, surface tension, specific heat - all made possible by those amazing hydrogen bonds. Support us on Patreon! http://www.patreon.com/amoebasisters Our FREE resources: GIFs: http://www.amoebasisters.com/gifs.html Handouts: http://www.amoebasisters.com/handouts.html Comics: http://www.amoebasisters.com/parameciumparlorcomics Connect with us! Website: http://www.AmoebaSisters.com Twitter: http://www.twitter.com/AmoebaSisters Facebook: http://www.facebook.com/AmoebaSisters Tumblr: http://www.amoebasisters.tumblr.com Pinterest: http://www.pinterest.com/AmoebaSisters Instagram: https://www.instagram.com/amoebasistersofficial/ Visit our Redbubble store at http://www.amoebasisters.com/store.html The Amoeba Sisters videos demystify science with humor and relevance. The videos center on Pinky's certification and experience in teaching science at the high school level. Pinky's teacher certification is in grades 4-8 science and 8-12 composite science (encompassing biology, chemistry, and physics). Amoeba Sisters videos only cover concepts that Pinky is certified to teach, and they focus on her specialty: secondary life science. For more information about The Amoeba Sisters, visit: http://www.amoebasisters.com/about-us.html We cover the basics in biology concepts at the secondary level. If you are looking to discover more about biology and go into depth beyond these basics, our recommended reference is the FREE, peer reviewed, open source OpenStax biology textbook: https://openstax.org/details/books/biology *We mention that water makes up "3/4 of the Earth's surface" and we wish we had said "nearly" This number is going to be an estimate, but here is a source that puts it around 71%. https://water.usgs.gov/edu/earthhowmuch.html We take pride in our AWESOME community, and we welcome feedback and discussion. However, please remember that this is an education channel. See YouTube's community guidelines https://www.youtube.com/yt/policyandsafety/communityguidelines.html and YouTube's policy center https://support.google.com/youtube/topic/2676378?hl=en&ref_topic=6151248. We also reserve the right to remove comments with vulgar language. Music is this video is listed free to use/no attribution required from the YouTube audio library https://www.youtube.com/audiolibrary/music?feature=blog We have YouTube's community contributed subtitles feature on to allow translations for different languages. YouTube automatically credits the different language contributors below (unless the contributor had opted out of being credited). We are thankful for those that contribute different languages. If you have a concern about community contributed contributions, please contact us.
Views: 768813 Amoeba Sisters
This firm was produced by SOIL AND WATER CONSERVATION BUREAU in Taiwan. It records some particular farmland measures at slope areas in past 50 years, as well as it introduces the history of the Bureau.
Views: 46581 Yung-Chuan Ko
Kid VO: We consume biological resources every day but they may run out Consider shark fin soup Can’t we consume other kinds of soup? Super: Endangered Kid VO: Endangered seafood Can’t we switch to other dishes that come from sustainable sources? Super: Sustainable sources Kid VO: Paper cups and plates Can’t we avoid using them? Greetings can be sent in many ways Can’t we change our consumption habits to conserve biological resources for the next generation to enjoy? Consume wisely to conserve biological resources Super: Consume Wisely to Conserve Biological Resources Sustainable Consumption of Biological Resources www.afcd.gov.hk Environmental Campaign Committee logo Environment and Conservation Fund logo Agriculture, Fisheries and Conservation Department logo
3 Minute Water and Waste Water Video Tutorials by AET For more information or comments contact us here: https://www.aqua-equip.com/ Water testing equipment can be found here: https://www.aqua-equip.com/parts/ BOD – Biological oxygen demand is the most important used assessment to determine water quality. Its a measurement unit and stands for the needed amount of oxygen by aerobic biological organisms to break down organic matter. COD in comparison stands only for everything that can be chemically oxidized and is therefore less specific. The biochemical process of BOD removal can be described with the equation: Organic matter + O2 is converted into Co2 + H20 As higher the degree of water pollution as more organic matter is present and as more Oxygen is needed for the oxidization, hence, as higher is the BOD level. The most commonly laboratory test method used is called the BOD5 test. For this testing method one liter of waste water is filled into a testing bottle and the consumed oxygen during 5 days of incubation is measured. The test method uses 5 days of incubation time as after 5 days most organic material has already been degraded. The test sample is continuously agitated under the absence of light and a sensor measures the decline of pressure caused by oxygen consumption. Typical values for BOD levels are 2 to 8mg/l in moderately polluted rivers. In comparison untreated sewage in the US has a BOD level of about 300mg/l whereas European sewage averages around 600mg/l. The lower BOD level in the US are caused by a greater water use per capita. Waste water treatment plants use different technologies to increase BOD removal significantly. One common method is to increase the amount of biological organisms by providing more surface area for attached growth. Fill media plastic blocks consists of corrugated sheets and ensure a good water and air mixing to supply the biological organisms with nutrients and oxygen. Each fill media block can provide up to 250 m2 surface area for attached growth!
Views: 1296 Karl-Uwe Schmitz
Hank gives the run down on the top five ways humans are negatively impacting the environment and having detrimental effects on the valuable ecosystem services which a healthy biosphere provides. Like Crash Course? http://www.facebook.com/YouTubeCrashCourse Follow Crash Course! http://www.twitter.com/TheCrashCourse T*mbl Crash Course: http://thecrashcourse.tumblr.com Table of Contents Ecosystem Services 00:51 The Importance of Biodiversity 04:07 Deforestation 06:42 Desertification 06:49 Global Warming 07:59 Invasive Species 08:51 Overharvesting 09:20 Crash Course/SciShow videos referenced in this episode: Hydrologic and Carbon Cycles: http://www.youtube.com/watch?v=2D7hZpIYlCA Nitrogen and Phosphorus Cycles: http://www.youtube.com/watch?v=leHy-Y_8nRs Ecological Succession: http://www.youtube.com/watch?v=jZKIHe2LDP8 Climate Change: http://www.youtube.com/watch?v=M2Jxs7lR8ZI Invasive Species: http://www.youtube.com/watch?v=eDOwTXobJ3k Food Shortage: http://www.youtube.com/watch?v=bPLJP84xL9A References and image licenses for this episode can be found in the Google document here: http://dft.ba/-3n5P Support CrashCourse on Subbable: http://subbable.com/crashcourse
Views: 1276927 CrashCourse
Hank introduces us to one of the most diverse and important families in the tree of life - the vascular plants. These plants have found tremendous success and the their secret is also their defining trait: conductive tissues that can take food and water from one part of a plant to another part. Though it sounds simple, the ability to move nutrients and water from one part of an organism to another was a evolutionary breakthrough for vascular plants, allowing them to grow exponentially larger, store food for lean times, and develop features that allowed them to spread farther and faster. Plants dominated the earth long before animals even showed up, and even today hold the world records for the largest, most massive, and oldest organisms on the planet. Crash Course Biology is now available on DVD! http://dft.ba/-8bCC Like CrashCourse @ http://www.facebook.com/YouTubeCrashCourse Follow CrashCourse @ http://www.twitter.com/TheCrashCourse Table of Contents 1) 3 Tissue Types 02:37 2) Primary Growth 03:04 3) Secondary Growth 03:28 4) Dermal Tissue 04:47 a) Epidermis 04:54 5) Parenchyma Cells 05:39 6) Vascular Tissue 05:58 7) Xylem 05:58 8) Collenchyma 07:10 9) Sclerenchyma 07:35 10) Ground Tissue 08:25 a) Mesophyll 08:17 b) Photosynthesis 08:47 11) Phloem 09:54 References http://www.uic.edu/classes/bios/bios100/lecturesf04am/lect17.htm http://www.deseretnews.com/article/700071982/Central-Utahs-Pando-worlds-largest-living-thing-is-threatened-scientists-say.html?pg=all http://www.popsci.com/science/article/2012-02/200000-year-old-patch-seagrass-worlds-oldest-living-organism crashcourse, biology, vascular plant, plant, successful, diversity, diverse, conductive tissue, evolution, growth, largest, most massive, oldest, dermal tissue, vascular tissue, ground tissue, photosynthesis, sprout, germination, primary growth, herbaceous, secondary growth, woody tissue, organ, root, stem, meristem, leaf, epidermis, cuticle, trichomes, root hairs, parenchyma, cortex, xylem, evapotranspiration, collenchyma, sclerenchyma, lignin, mesophyll, chloroplasts, stomata, phloem, sieve cells, sieve-tube elements, internal pressure, diffusion Support CrashCourse on Subbable: http://subbable.com/crashcourse
Views: 977399 CrashCourse
This lecture explains about the Wastewater treatment process and industrial wastewater management with sewage treatment. http://shomusbiology.weebly.com/ Download the study materials here- http://shomusbiology.weebly.com/bio-materials.html Sewage treatment is the process of removing contaminants from wastewater and household sewage, both runoff (effluents), domestic, commercial and institutional. It includes physical, chemical, and biological processes to remove physical, chemical and biological contaminants. Its objective is to produce an environmentally safe fluid waste stream (or treated effluent) and a solid waste (or treated sludge) suitable for disposal or reuse (usually as farm fertilizer). Using advanced technology it is now possible to re-use sewage effluent for drinking water, although Singapore is the only country to implement such technology on a production scale in its production of NEWater. Source of the article published in description is Wikipedia. I am sharing their material. © by original content developers of Wikipedia. Link- http://en.wikipedia.org/wiki/Main_Page
Views: 377508 Shomu's Biology
SORRY FOR SPELLING MISTAKE (WEST=WASTE) buy link Waterproof Mini Water Pump, DC 9V (White) SMALL DC PUMP +BATTERY CAP+SWITCH +small pipe Amazon:https://amzn.to/2BqDGto Amazon:https://amzn.to/2UHxCDy Flipkart : https://bit.ly/2Mw4cE4 PART-2 ( https://youtu.be/z1gDr7hMN8k) FOR (TREE +LAMPS+LED+RESISTOR+CARS) AMAZON: https://amzn.to/2OZT983 MY NEW CHANNEL( SUBSCRIBED ALSO) https://bit.ly/2Buq0wT MATERIAL USED 2BY3 FUT PLYWOOD 6 PLASTIC BOX THERMACOL FOR FACTORY PVC PYP STROW 6 TO 10 PLASTIC TREES PLASTIC HOUSE LED 9 VOLT BATTERY 9 VOLT DC WATER PUMP BATERY CAP SWITCH WATER PYPE SMALL COLOR PAPERS Wastewater (or waste water) is any water that has been affected by human use. Wastewater is "used water from any combination of domestic, industrial, commercial or agricultural activities, surface runoff or stormwater, and any sewer inflow or sewer infiltration". Therefore, wastewater is a byproduct of domestic, industrial, commercial or agricultural activities. The characteristics of wastewater vary depending on the source. Types of wastewater include: domestic wastewater from households, municipal wastewater from communities (also called sewage) or industrial wastewater from industrial activities. Wastewater can contain physical, chemical and biological pollutants. Households may produce wastewater from flush toilets, sinks, dishwashers, washing machines, bath tubs, and showers. Households that use dry toilets produce less wastewater than those that use flush toilets. Wastewater may be conveyed in a sanitary sewer which conveys only sewage. Alternatively, it can be transported in a combined sewer which includes stormwater runoff and industrial wastewater. After treatment at a wastewater treatment plant, the treated wastewater (also called effluent) is discharged to a receiving water body. The terms "wastewater reuse" or "water reclamation" apply if the treated waste is used for another purpose. Wastewater that is discharged to the environment without suitable treatment causes water pollution.
Views: 1086098 SR Robotics
Natural Resources part 19 (Nitrification and de-nitrification and Biological) CBSE class 9
Views: 8515 ExamFear Education
030 - Water Pollution In this video Paul Andersen explains how water quality can be degraded by pollutants. Wastewater is the main source of water pollution and can be measure using the BOD (biochemical oxygen demand). Dead zones, cultural eutrophication, disease, and other pollutants are included. A basic description of sewage treatment, septic systems, and water purification is also included. Do you speak another language? Help me translate my videos: http://www.bozemanscience.com/translations/ Music Attribution Intro Title: I4dsong_loop_main.wav Artist: CosmicD Link to sound: http://www.freesound.org/people/CosmicD/sounds/72556/ Creative Commons Atribution License Outro Title: String Theory Artist: Herman Jolly http://sunsetvalley.bandcamp.com/track/string-theory All of the images are licensed under creative commons and public domain licensing: Agency, U. E. P. (1990). English: Illustration (cutaway view) of rapid sand filter for water purification. Retrieved from https://commons.wikimedia.org/wiki/File:Rapid_sand_filter_EPA.jpg Allen, R. S. & J. (2010). English: Red circles on this map show the location and size of many of our planet’s dead zones. Retrieved from https://commons.wikimedia.org/wiki/File:Aquatic_Dead_Zones.jpg Annabel. (2009). English: Overview of the Aquafin waste water treatment plant of Antwerpen-Zuid,. Retrieved from https://commons.wikimedia.org/wiki/File:WWTP_Antwerpen-Zuid.jpg Betts, L. (1999). English: View of runoff. Retrieved from https://commons.wikimedia.org/wiki/File:Runoff_of_soil_%26_fertilizer.jpg C, T. E. , Ulrich, L. , Lüthi, C. , Reymond, Ph , Zurbrügg. (2014). English: Schematic of a septic tank. Retrieved from https://commons.wikimedia.org/wiki/File:Schematic_of_a_septic_tank_2.png Cuyahoga River on Fire. (n.d.). Retrieved from http://www.clf.org/wp-content/uploads/2012/10/Cuyahoga-Fire1.jpg Jordan, C. (2009). Deutsch: Die unveränderten Mageninhalte eines toten Albatross-Jungen, aufgenommen im September 2009 im Midway Atoll National Wildlife Refuge im Pazifik mit Plastik-Treibgut, das dem Jungtier von seinen Eltern gefüttert wurde. Retrieved from https://commons.wikimedia.org/wiki/File:Albatross_at_Midway_Atoll_Refuge_(8080507529).jpg Knobil, M. (2005). English: Cholera hospital with several empty beds. Retrieved from https://commons.wikimedia.org/wiki/File:Cholera_hospital_in_Dhaka.jpg Madprime. (2007). English: K12 E Coli colonies on a plate. Retrieved from https://commons.wikimedia.org/wiki/File:Ecoli_colonies.png Matthewjparker. (2013). English: An image of Cyanobacteria, Tolypothrix. Retrieved from https://commons.wikimedia.org/wiki/File:Tolypothrix_(Cyanobacteria).JPG Mayuno. (2007). kanamachi water purification plant. Retrieved from https://commons.wikimedia.org/wiki/File:Kanamachi-water_purification_plant.JPG NASA, C. S. (2002). English: Acid mine drainage. Retrieved from https://commons.wikimedia.org/wiki/File:Rio_tinto_river_CarolStoker_NASA_Ames_Research_Center.jpg NIH, C. R. M. L. NIAID. (Unknown date). Čeština: Escherichia coli v elektronovém mikroskopu. Retrieved from https://commons.wikimedia.org/wiki/File:EscherichiaColi_NIAID.jpg NOAA, N. (2010). English: Gulf of Mexico Dead Zone. Retrieved from https://commons.wikimedia.org/wiki/File:Dead_Zone_NASA_NOAA.jpg Photobank, M. (2007). Oiled Bird - Black Sea Oil Spill. Retrieved from https://commons.wikimedia.org/wiki/File:Oiled_Bird_-_Black_Sea_Oil_Spill_111207.jpg Point-source water pollution, Unknown location - Indiana Dunes - epa.gov. (n.d.). Retrieved December 14, 2015, from https://www.flickr.com/photos/thoth-god/4078908973/ Prevention, C. for D. C. and. (1992). (From source) This cholera patient is drinking oral rehydration solution. Retrieved from https://commons.wikimedia.org/wiki/File:Cholera_rehydration_nurses.jpg Redstarpublications. (2013). English: Photograph of a septic system drainfield. Retrieved from https://commons.wikimedia.org/wiki/File:Septic-system.jpg Ryan. (2000). Pollution at Varanasi ghats. Retrieved from https://commons.wikimedia.org/wiki/File:Varanasi_ghats.jpg Secretariat, S. (2009a). English: Here the wastewater is only light grey. Retrieved from https://commons.wikimedia.org/wiki/File:Influent_raw_wastewater_(note_grey_colour_in_glass_jar)_(3232393634).jpg Secretariat, S. (2009b). English: Photo by Kennedy Mayumbelo in 2006. Retrieved from
Views: 132483 Bozeman Science
Major issues related to environmental pollution and depletion of valuable natural resources are discussed in this video in very simple student friendly language and in HINDI. The video will help a lot scoring high in Board Exam and Pre Medical Tests. Visit the site given below for purchasing our lecture videos: https://concept-tutorials.teachable.com Environmental Issues | Biology Class 12 Pollution: Any undesirable change in physical, chemical or biological characteristics of air, water or soil. Control of Air Pollution: 1. Electrostatic Precipitator: It removes particulate matter present in exhaust from thermal power plant. ü It has electrode wires that release electrons. ü These electrons attach to dust particles giving them negative charge. ü These negatively charged particles are passed through positively charged collecting plates. Thus, dust particles settle on collecting plates. 2. Scrubber removes gases like SO2. In a scrubber, the exhaust is passed through spray of water or lime (CaO). 3. Catalytic Converter: Expensive metals like Pt, Pd and Rd as catalyst are fitted into automobiles for reducing emission of poisonous gases. As the exhaust passes through catalytic converter, unburnt hydrocarbons are converted into CO2 and H2O, carbon monoxide and Nitric oxides are changed to CO2 and N2 gas respectively. Water Pollution: Domestic sewage and industrial effluents: ü Solids are relatively easy to remove, dissolved salts such as nitrates, phosphates, toxic metal ions and organic compounds are very difficult to be removed. ü Microbes involved in biodegradation of organic matter in water body consume a lot of oxygen and as a result, there is a sharp decline in dissolved O2 at the point of sewage discharge. This causes mortality of fish and other aquatic organisms. ü Presence of large amount of nutrient in water causes excessive growth of free floating algae called algal bloom. Algal blooms cause deterioration of water quality and increase in fish mortality. Some algae are extremely toxic to human beings and other animals. ü Eichhornia (terror of Bengal) also grows abundantly in eutrophic water bodies. ü Sewage from hospitals contains many undesirable pathogenic microbes which may cause outbreak of serious diseases like typhoid, cholera, jaundice, etc. ü Waste water from industries contains toxic substances and heavy metals like Hg, Pb, etc. Bio magnification refers to increase in concentration of toxic substance at successive trophic levels. It happens because most of the toxic substances are lipid soluble and thus accumulated by organic matter. High concentrations of DDT disturb Ca metabolism in birds which causes thinning of egg shell and their premature breaking eventually causing decline in bird's population. Eutrophication: ü It is natural ageing of a lake due to nutrient enrichment of its water. ü However, pollutants from human activities radically accelerate the ageing process. This phenomenon is called cultural or accelerated eutrophication. ü Prime contaminants are nitrates and phosphates which act as plant nutrients. ü They over stimulate growth of algae, resulting in algal blooms and decrease concentration of water dissolved O2 which is vital to other aquatic organisms. ü Other pollutants in lake may poison whole population of fish whose decomposing remains further deplete water's dissolved O2 content. Thus the lake is choked to death. Organic Farming: ü Integrated organic farming is a cyclical, zero waste procedure where waste products from one process are cycled in as nutrients for other processes. ü This allows maximum utilisation of resources and increases efficiency of production. ü The process includes beekeeping, dairy management, water harvesting, composting and agriculture which support each other and are extremely economical and sustainable. ü Cattle excreta are used as manures. ü Crop waste is used to create compost which can be used as natural fertilizers. O3 layer in Atmosphere: ü The stratospheric or good O3 protects life on earth from UV radiations. It acts as a shield absorbing UV radiations from the sun. Ozone Hole: There is balance between production and degradation of O3 in the atmosphere. The balance has been disrupted due to enhancement of O3 degradation by CFCs (Chlorofluorocarbons). Ozone Hole over Antarctica: ü Every year, O3 hole is formed over Antarctica during spring of Southern Hemisphere (Sept- Oct). ü O3 depleting substances released by industrialised countries of Europe, North America, Russia and Japan reach stratosphere from where they are pushed towards poles by winds. ü During winter, there is no sunlight which is required for reaction between Cl and O3. Sunlight is available during spring when ozone depletion occurs on a large scale. Concept Tutorial presents ‘Class 12 | Chapter 16 Environmental Issues’ in very simple language to help students in the best possible way. #biology #environmentalissues #SaveMotherEarth
Views: 1462 Concept Tutorial
Hank brings us to the next level of ecological study with ecosystem ecology, which looks at how energy, nutrients, and materials are getting shuffled around within an ecosystem (a collection of living and nonliving things interacting in a specific place), and which basically comes down to who is eating who. Like Crash Course! http://www.facebook.com/YouTubeCrashCourse Follow Crash Course! http://www.twitter.com/TheCrashCourse Table of Contents 1) Defining Ecosystems 0:49:1 2) Trophic Structure 4:44:1 a) Primary Producers 5:27 b) Primary Consumers 5:41 c) Secondary Consumers 5:49:1 d) Tertiary Consumers 5:58:2 e) Detrivores 6:08:1 3) Bioaccumulation 8:47 References and image licenses for this episode in the Google doc here: http://dft.ba/-3f2M Support CrashCourse on Subbable: http://subbable.com/crashcourse
Views: 818974 CrashCourse
Hank talks about the last major way humans are impacting the environment in this penultimate episode of Crash Course Ecology. Pollution takes many forms - from the simplest piece of litter to the more complex endocrine distruptors - and ultimately, humans are responsible for it all. Like Crash Course: http://www.facebook.com/YouTubeCrashCourse Follow Crash Course: http://www.twitter.com/TheCrashCourse T*mbl Crash Course: http://thecrashcourse.tumblr.com Table of Contents 1) Natural Compounds 01:12:1 a) Carbon 01:35 b) Nitrogen and Phosphorous 02:11:2 c) Cyanide 04:05 d) Mercury 05:15 e) Sulfur & Nitrogen Dioxide 05:58 2) Synthetic Compounds 06:51 a) Endocrine Disruptors 07:09 References for this episode can be found in the Google document here: http://dft.ba/-3wpP Support CrashCourse on Subbable: http://subbable.com/crashcourse
Views: 453662 CrashCourse
Dr. Vahid Rahmani (Assistant Professor of Biological and Agricultural Engineering) discusses water availability and management concerns in Kansas and how those concerns are magnified in nonstationary climates. This talk was presented for students participating in the capstone course of the natural resources and environmental science secondary major and was open to the general public as part of the natural resources and environmental science seminar series. The NRES Secondary Major and its seminar series are supported by the Office of the Provost, College of Agriculture, College of Arts & Sciences, and the Department of Biological and Agricultural Engineering.
Lecture: Global changes and biological invasion of alien species Yury Dgebuadze (International Union of Biological Sciences, A.N. Severtsov Institute of Ecology and Evolution and Russian Academy of Science) The biological invasion of alien species as establishment of species population outside of their native range dramatically intensified in the end of the ХХ century. Thus biological invasion is not only intentional introduction valuable species and accidental introduction with traffic, ballast waters etc., but self-spreading of species because the climate and density changes and anthropogenic destruction of native ecosystems. In global scale biological invasions of alien species cause biota homogenization when as a result both taxonomic (set of species) and ecological (set of ecological guilds, communities and ecosystems) diversity are changing in many regions. In local scale ecosystems transformation and sometimes degradation are observed. The last occurrence connects with ecosystem persistence loss to any influences including natural changes. Natural biological resources such as forest resources, water resources, pasturable resources, and game resources, which exploited by humans in extensive way in such transformed ecosystems sharply decreased. Alien species, which have cause and transmit diseases or consume other organisms bring decline of biological production in artificial ecosystems also. The studies revealed that vulnerability of ecosystems to alien species introduction is one of the least studied and the most difficult questions. However, from the data obtained it is possible to assume that an ecosystem primary production growth and pressure of predators make the system more vulnerable when aboriginal competitors and parasites block invasions. Biological invasion process supposes that introduced species on the one hand have to adapt to new climate of the region of introduction and on the other hand discomfort aboriginal species. This allows presuming corresponding alterations in the regulation of the vulnerability of ecosystems to invasions. Under climate warming ecosystems are more vulnerable because of the primary production growth when the role of aboriginal species in the regulation process lowers as many of them are discomforted. It is obvious that introduced species from the warmer climatic zones receive a competitive advantage. Data obtained during the last two decades in Eurasia confirm the correctness of these assumptions. The analysis of the introduced species composition showed that southern species predominate in many places of this continent. Global change as sum of climate change and human impact promotes the invasion process through the growth of primary production of ecosystems and ecological regulation of their vulnerability to alien species invasions. Many cases show that alien species invasions can nullify attempts to use ecosystems or keep them from destruction. Insect pests, weed and allergen plants; rodents and some other mammals have already done severe damage to both artificial and natural ecosystems. Some of them maintain and spread natural foci of diseases. International Union of Biological Sciences (IUBS) promotes international collaborations in this field among different countries, by organizing special program: Biological Consequences of Global Change (BCGC), symposia, workshops and trainings.
Join the Amoeba Sisters as they take a brisk "stroll" through their biology playlist! This review video can refresh your memory of major concepts, help you identify what you need to re-study, and reinforce vocab. Expand these details for table of contents, info about the optional video companion handout, and more! VIDEO COMPANION: -We have an optional video companion handout linked on our website https://www.amoebasisters.com/handouts -To find it, scroll down to the topic "review" (alphabetically listed) TIME-STAMPED TABLE OF CONTENTS *Click on the time stamps to access that part of the video. Also, the numbers on the left of the topics correspond to the grid box on our video companion. 1. Characteristics of Life 1:56 2. Levels of Organization 2:36 3. Biomolecules 3:47 4. Enzymes 4:36 5. Prokaryotic Cells & Eukaryotic Cells AND Intro to Cells 5:27 6. Inside the Cell Membrane AND Cell Transport 6:31 7. Osmosis 7:43 8. Cellular Respiration, Photosynthesis, AND Fermentation 8:57 9. DNA (Intro to Heredity) 10:03 10. DNA Replication 11:41 11. Cell Cycle 12:34 12. Mitosis 13:55 13. Meiosis 14:41 14. Alleles and Genes 16:10 15. Genetics (including Monohybrid, Dihybrid, Sex-Linked Traits, Multiple Alleles, Incomplete Dominance & Codominance, AND Pedigrees) 17:57 16. Protein Synthesis 19:30 17. Mutations 20:58 18. Natural Selection AND Genetic Drift 22:00 19. Bacteria 24:12 20. Viruses 25:17 21. Classification AND Protists & Fungi 26:21 22. Plant Structure 27:58 23. Plant Reproduction in Angiosperms 29:15 24. Food Chains & Food Webs 31:22 25. Ecological Succession 33:00 26. Carbon & Nitrogen Cycle 34:40 27. Ecological Relationships 36:56 28. Human Body System Functions Overview 38:30 Full Biology Playlist Link: https://www.youtube.com/playlist?list=PLwL0Myd7Dk1F0iQPGrjehze3eDpco1eVz Important Note: Unlike our concept videos, which are all under 10 minutes, this is a very long review video! Even after all of the proofing, it's possible a typo will escape us or we will determine a clarification is needed. Check the pinned comment for any clarifications or typo corrections. Support us on Patreon! http://www.patreon.com/amoebasisters More ways to Support Us? http://www.amoebasisters.com/support-us.html Our Resources: Biology Playlist: https://www.youtube.com/playlist?list=PLwL0Myd7Dk1F0iQPGrjehze3eDpco1eVz GIFs: http://www.amoebasisters.com/gifs.html Handouts: http://www.amoebasisters.com/handouts.html Comics: http://www.amoebasisters.com/parameciumparlorcomics Unlectured Series: https://www.amoebasisters.com/unlectured Connect with us! Website: http://www.AmoebaSisters.com Twitter: http://www.twitter.com/AmoebaSisters Facebook: http://www.facebook.com/AmoebaSisters Tumblr: http://www.amoebasisters.tumblr.com Pinterest: http://www.pinterest.com/AmoebaSisters Instagram: https://www.instagram.com/amoebasistersofficial/ Visit our Redbubble store at http://www.amoebasisters.com/store The Amoeba Sisters videos demystify science with humor and relevance. The videos center on Pinky's certification and experience in teaching science at the high school level. Pinky's teacher certification is in grades 4-8 science and 8-12 composite science (encompassing biology, chemistry, and physics). Amoeba Sisters videos only cover concepts that Pinky is certified to teach, and they focus on her specialty: secondary life science. For more information about The Amoeba Sisters, visit: http://www.amoebasisters.com/about-us.html Our textbook reference is OpenStax- a FREE, peer reviewed, open source biology textbook: OpenStax, Biology. OpenStax CNX. Nov 7, 2018 http://cnx.org/contents/[email protected] Our intro music designed and performed by Jeremiah Cheshire. End music is this video is listed free to use/no attribution required from the YouTube audio library https://www.youtube.com/audiolibrary/music?feature=blog
Views: 64694 Amoeba Sisters
Hank introduces us to ecology - the study of the rules of engagement for all of us earthlings - which seeks to explain why the world looks and acts the way it does. The world is crammed with things, both animate and not, that have been interacting with each other all the time, every day, since life on this planet began, and these interactions depend mostly on just two things... Learn what they are as Crash Course Biology takes its final voyage outside the body and into the entire world. Stay tuned in the coming weeks for a new Crash Course in ECOLOGY! Crash Course Biology is now available on DVD! http://dft.ba/-8bCC Like CrashCourse: http://www.facebook.com/YouTubeCrashCourse Follow CrashCourse: http://www.twitter.com/TheCrashCourse Table of Contents 1) Ecological Hierarchy 02:01:2 a) Population 02:12 b) Community 02:26:1 c) Ecosystem 02:50 d) Biome 03:22:1 e) Biosphere 03:51 2) Key Ecological Factors 04:07 a) Temperature 05:06:1 b) Water 05:37 3) Biome Type 06:03:1 References/Image Licenses: http://dft.ba/-2qQ3 crash course, biology, ecology, hank green, science, organism, interaction, molecule, environment, hierarchy, Earth, ecological, population, community, predation, cooperation, competition, ecosystem, soil, water, air, temperature, energy, materials, physical environment, biome, technique, adaptation, condition, evolution, biosphere, biotic, abiotic, predator, animal, plant, food, shelter, moisture, sunlight, elevation, category, chemistry, enzyme, photosynthesis, physiognomy, biodiversity, tropical rainforest, tundra, desert, grassland, taiga, human impact Support CrashCourse on Subbable: http://subbable.com/crashcourse
Views: 1019527 CrashCourse
Support us : https://www.instamojo.com/@exambin/ Download our app : http://examb.in/app Environmental Impact Assessment Developmental projects in the past were undertaken without any consideration to their environmental consequences. As a result the whole environment got polluted and degraded. In view of the colossal damage done to the environment, governments and public are now concerned about the environmental impacts of developmental activities. So, to assess the environmental impacts, the mechanism of Environmental Impact Assessment also known as EIA was introduced. EIA is a tool to anticipate the likely environmental impacts that may arise out of the proposed developmental activities and suggest measures and strategies to reduce them. EIA was introduced in India in 1978, with respect to river valley projects. Later the EIA legislation was enhanced to include other developmental sections since 1941. EIA comes under Notification on Environmental Impact Assessment (EIA) of developmental projects 1994 under the provisions of Environment (Protection) Act, 1986. Besides EIA, the Government of India under Environment (Protection) Act 1986 issued a number of other notifications, which are related to environmental impact assessment. EIA is now mandatory for 30 categories of projects, and these projects get Environmental Clearance (EC) only after the EIA requirements are fulfilled. Environmental clearance or the ‘go ahead’ signal is granted by the Impact Assessment Agency in the Ministry of Environment and Forests, Government of India. Projects that require clearance from central government can be broadly categorized into the following sectors • Industries • Mining • Thermal power plants • River valley projects • Infrastructure • Coastal Regulation Zone and • Nuclear power projects The important aspects of EIA are risk assessment, environmental management and Post product monitoring. Functions of EIA is to 1. Serve as a primary environmental tool with clear provisions. 2. Apply consistently to all proposals with potential environmental impacts. 3. Use scientific practice and suggest strategies for mitigation. 4. Address all possible factors such as short term, long term, small scale and large scale effects. 5. Consider sustainable aspects such as capacity for assimilation, carrying capacity, biodiversity protection etc... 6. Lay down a flexible approach for public involvement 7. Have a built-in mechanism of follow up and feedback. 8. Include mechanisms for monitoring, auditing and evaluation. In order to carry out an environmental impact assessment, the following are essential: 1. Assessment of existing environmental status. 2. Assessment of various factors of ecosystem (air, water, land, biological). 3. Analysis of adverse environmental impacts of the proposed project to be started. 4. Impact on people in the neighborhood. Benefits of EIA • EIA provides a cost effective method to eliminate or minimize the adverse impact of developmental projects. • EIA enables the decision makers to analyses the effect of developmental activities on the environment well before the developmental project is implemented. • EIA encourages the adaptation of mitigation strategies in the developmental plan. • EIA makes sure that the developmental plan is environmentally sound and within limits of the capacity of assimilation and regeneration of the ecosystem. • EIA links environment with development. The goal is to ensure environmentally safe and sustainable development. Environmental Components of EIA: The EIA process looks into the following components of the environment: • Air environment • Noise component : • Water environment • Biological environment • Land environment EIA Process and Procedures Steps in Preparation of EIA report • Collection of baseline data from primary and secondary sources; • Prediction of impacts based on past experience and mathematical modelling; • Evolution of impacts versus evaluation of net cost benefit; • Preparation of environmental management plans to reduce the impacts to the minimum; • Quantitative estimation of financial cost of monitoring plan and the mitigation measures. Environment Management Plan • Delineation of mitigation measures including prevention and control for each environmental component, rehabilitation and resettlement plan. EIA process: EIA process is cyclical with interaction between the various steps. 1. Screening 2. Scoping 3. Collection of baseline data 4. Impact prediction 5. Mitigation measures and EIA report 6. Public hearing 7. Decision making 8. Assessment of Alternatives, Delineation of Mitigation Measures and Environmental Impact Assessment Report 9. Risk assessment
Views: 24056 Exambin
006 - Soil and Soil Dynamics In this video Paul Andersen explains how soils are formed and classified. Weathering of rock creates particles which are mixed with water, air, and organic material. Soils are classified according to particle size, chemical makeup, and horizon distribution. A brief discussion of soil loss through erosion, compaction, and salinization is included. Do you speak another language? Help me translate my videos: http://www.bozemanscience.com/translations/ Music Attribution Intro Title: I4dsong_loop_main.wav Artist: CosmicD Link to sound: http://www.freesound.org/people/CosmicD/sounds/72556/ Creative Commons Atribution License Outro Title: String Theory Artist: Herman Jolly http://sunsetvalley.bandcamp.com/track/string-theory All of the images are licensed under creative commons and public domain licensing: “Agriculture.” Wikipedia, the Free Encyclopedia, September 4, 2015. https://en.wikipedia.org/w/index.php?title=Agriculture&oldid=679392257. Agriculture, US Department of. English: Soil Profile. Units Are Inches., Unknown. http://soils.usda.gov/education/resources/lessons/profile/. https://commons.wikimedia.org/wiki/File:Soil_profile.png. “Bathroom Faucet Tool - Free Tools and Utensils Icons.” Flaticon. Accessed September 6, 2015. www.flaticon.com/free-icon/bathroom-faucet-tool_47502. “Content Library - OpenStax CNX.” Accessed September 6, 2015. http://cnx.org/contents/[email protected]:22/Sustainability:-A-Comprehensiv. Fir0002. A Diagram of the Rock Cycle, February 10, 2008. Own work. https://commons.wikimedia.org/wiki/File:Rockcycle_edit.jpg. “Irrigation.” Wikipedia, the Free Encyclopedia, September 1, 2015. https://en.wikipedia.org/w/index.php?title=Irrigation&oldid=678999049. Khruner. English: Baveno Pink Granite., November 28, 2007. Own work. https://commons.wikimedia.org/wiki/File:Rocks_-_Pink_granite_Baveno.JPG. “Loam.” Wikipedia, the Free Encyclopedia, August 12, 2015. https://en.wikipedia.org/w/index.php?title=Loam&oldid=675775126. Princedesmers01. Français : La Poterie À Safi Maroc., October 2, 2012. Own work. https://commons.wikimedia.org/wiki/File:Argile_p%C3%A9trissant_au_soleil..JPG. Rcole17. English: Primary Succession Occurring over Time., May 27, 2015. Template:Https://en.wikipedia.org/wiki/Primary succession. https://commons.wikimedia.org/wiki/File:Primary_Succession_Diagram.svg. “Root Hair.” Wikipedia, the Free Encyclopedia, September 4, 2015. https://en.wikipedia.org/w/index.php?title=Root_hair&oldid=679478724. “Soil.” Wikipedia, the Free Encyclopedia, August 28, 2015. https://en.wikipedia.org/w/index.php?title=Soil&oldid=678270096. “Soil Horizon.” Wikipedia, the Free Encyclopedia, August 31, 2015. https://en.wikipedia.org/w/index.php?title=Soil_horizon&oldid=678827049. “Soil Retrogression and Degradation.” Wikipedia, the Free Encyclopedia, July 21, 2015. https://en.wikipedia.org/w/index.php?title=Soil_retrogression_and_degradation&oldid=672402214. “Weathering.” Simple English Wikipedia, the Free Encyclopedia, May 19, 2015. https://simple.wikipedia.org/w/index.php?title=Weathering&oldid=5137919. n.d. https://openclipart.org/detail/140107/maize-plant.
Views: 316232 Bozeman Science
PERMANENT PATRIOT YOU TUBE : https://www.youtube.com/channel/UC9Wyspu9IfdFwMq0T0wtBLw https://www.youtube.com/user/PH1NPHAN PERMANENT PATRIOT FACEBOOK : https://www.facebook.com/PERMANENTPATRIOT/ http://2onthefrontline.com/ http://Commieblaster.com/
Views: 23 PERMANENT PATRIOT
Dr. Stacy Hutchinson (Department of Biological and Agricultural Engineering and Interim Director of the Urban Water Institute, Kansas State University) discusses the scope and significance of water issues in non-rural landscapes and strategies for better meeting our water challenges both now and into the future. This talk was presented for students participating in the capstone course of the Natural Resources and Environmental Science (NRES) Secondary Major and was open to the general public as part of the Natural Resources and Environmental Science Seminar Series. NRES at K-State is supported by the Office of the Provost, College of Agriculture, College of Arts & Sciences, and the Department of Biological and Agricultural Engineering.
Find the full free online course at: http://alison.com/courses/Planet-Earth-Systems-and-Resources Find all of ALISON's 500+ free online courses at: http://alison.com/course/ Planet Earth is unique in the Solar System as it has just the right systems and resources to give rise to life. This free online course will review the systems and resources found on Earth such as the flow of energy around the planet, the cycling of matter, the geology of the planet, the Earth's atmosphere and biosphere, groundwater and surface water, and mineral, soil and biological resources. The course reviews the impact humans are having on these systems and resources and will look at air, soil and water pollutants, and how humans manage the land. This course will be of great interest to professionals working in areas related to the environmental sciences or earth sciences, to all teachers of geography and science, and to students who are thinking of a career in the environmental sciences or earth sciences. It should also be of interest to anyone who simply wants to understand better our physical place in the universe which is constantly evolving around us.
Views: 309 Alison
In this video Malvika Choudhary explains about definition of biodiversity,types(Genetic biodiversity,species biodiversity and ecosystem biodiversity)its importance and the reason behind loss of biodiversity.Its Hindi version is also available.for more information visit www.suvidhyaa.com or email at [email protected]
Views: 482607 Suvidyaa
Rotary biological contactor is a very cost effective treatment mechanism compared to resources used in ASP. and with the use of banana leaves as bio media inside it; odour and fly nuisance is controlled. COD, BOD, pH and TDS monitoring of waste water under treatment is done for this prototype testing. The results on 7th day are absolutely amazing! #indianprototype #Indianengineeringprojects #govtofIndia
Views: 307 Prasad Bhadane
County of Merced Campus Parkway Phase II Part A and Part B Project, Biological Resources Information Program
Views: 37 Alluvion Biological Consulting
Explore several ecological relationships with The Amoeba Sisters! Ecological relationships discussed include predation, competition, and symbiotic relationships (parasitism, mutualism, and commensalism). See table of contents by expanding details 👇 Video has a handout on http://www.AmoebaSisters.com/handouts! Table of Contents: Predation (Predatory and Prey) 1:41 Competition 2:39 Symbiotic Relationships 3:30 (including parasitism 3:36, mutualism 4:16, commensalism 5:05) Vocab used throughout video includes host, parasite, predator, prey, biotic, and abiotic factors. Support us on Patreon! http://www.patreon.com/amoebasisters Our FREE resources: GIFs: http://www.amoebasisters.com/gifs.html Handouts: http://www.amoebasisters.com/handouts.html Comics: http://www.amoebasisters.com/parameciumparlorcomics Connect with us! Website: http://www.AmoebaSisters.com Twitter: http://www.twitter.com/AmoebaSisters Facebook: http://www.facebook.com/AmoebaSisters Tumblr: http://www.amoebasisters.tumblr.com Pinterest: http://www.pinterest.com/AmoebaSisters Instagram: https://www.instagram.com/amoebasistersofficial/ Visit our Redbubble store at http://www.amoebasisters.com/store.html The Amoeba Sisters videos demystify science with humor and relevance. The videos center on Pinky's certification and experience in teaching science at the high school level. Pinky's teacher certification is in grades 4-8 science and 8-12 composite science (encompassing biology, chemistry, and physics). Amoeba Sisters videos only cover concepts that Pinky is certified to teach, and they focus on her specialty: secondary life science. For more information about The Amoeba Sisters, visit: http://www.amoebasisters.com/about-us.html We cover the basics in biology concepts at the secondary level. If you are looking to discover more about biology and go into depth beyond these basics, our recommended reference is the FREE, peer reviewed, open source OpenStax biology textbook: https://openstax.org/details/books/biology We take pride in our AWESOME community, and we welcome feedback and discussion. However, please remember that this is an education channel. See YouTube's community guidelines https://www.youtube.com/yt/policyandsafety/communityguidelines.html and YouTube's policy center https://support.google.com/youtube/topic/2676378?hl=en&ref_topic=6151248. We also reserve the right to remove comments with vulgar language. Music is this video is listed free to use/no attribution required from the YouTube audio library https://www.youtube.com/audiolibrary/music?feature=blog
Views: 292089 Amoeba Sisters
Can one use reed plants to purify water contaminated with oil? Bauer certainly can! Together with BAUER Nimr LLC in Oman, BAUER Resources GmbH developed a solution – wherein reed plants separate oil from water – for the problem faced by the oil industry. In the midst of a desert landscape around 700 km from Muscat, Oman, a green oasis arose, creating a home for numerous species of animals and plants. The reed-bed treatment plant, which, after an expansion, today purifies up to 115,000 m³ of oil-contaminated water every day, is one of the largest natural water purification systems in the world. In October 2017, the BAUER Group was commissioned to increase the capacity by 60,000 m³ to 175,000 m³ per day. The company has already won several awards for this pioneering project.
Views: 2861 BAUERGruppe
Free energy salt water & magnets with light bulbs - Experiment science projects at home
Views: 2701886 MC tech
The Institute of Marine Biological Resources and Inland Waters (IMBRIW) - HCMR, together with the Faculty of Geology and Geo-Environment of the National and Kapodistrian University of Athens, the consultancy company of D. Argyropoulos & associates and AVMAP GIS A.E. has undertaken the ECOFLOW project funded by the Hellenic General Secretariat of Research and Technology in the framework of the NSRF 2007-2013. The ECOFLOW methodology for the assessment of ecological flow is based on the observation of fish species "preferences" in relation to four parameters (depth, velocity, substrate and cover) at microhabitat scale.
Views: 143 imbriw
Alien invaders, endangered natives, and declining fisheries : a history of fish in the upper San Francisco estuary; given by Peter Moyle, Professor of Fish Biology, UC Davis. Keywords: Fishes, ecology, Suisun Marsh, non-indigenous pets, biological diversity conservation Credits: producer:Water Resources Center Archives, sponsor:Metropolitan Water District of Southern California
Views: 445 UC Berkeley Events
Research suggests that more diverse ecosystems are better for the bottom line. Thanks to the University of Minnesota for sponsoring this video! http://twin-cities.umn.edu/ Credits (and Twitter handles): Script Writer: Peter Reich Script Editor: Kate Yoshida (@KateYoshida) Video Illustrator: Ever Salazar (@eversalazar) Video Director: Emily Elert (@eelert) Video Narrator: Emily Elert (@eelert) With Contributions From: Henry Reich, Alex Reich, David Goldenberg Music by: Nathaniel Schroeder: http://www.soundcloud.com/drschroeder Peter's Science paper: http://science.sciencemag.org/content/354/6309/aaf8957 ___________________________________________ A big thank-you to our supporters on https://www.patreon.com/MinuteEarth : - Maarten Bremer - Jeff Straathof - Tony Fadell - Muhammad Shifaz - Mark Roth - Melissa Vigil - Valentin - Alberto Bortoni _________________________________________ Like our videos? Subscribe to MinuteEarth on YouTube: http://goo.gl/EpIDGd Support us on Patreon: https://goo.gl/ZVgLQZ Also, say hello on: Facebook: http://goo.gl/FpAvo6 Twitter: http://goo.gl/Y1aWVC And find us on itunes: https://goo.gl/sfwS6n ___________________________________________ We try to leave jargon out of our videos, but if you want to learn more about this topic, here are some handy keywords to get your googling started: Biodiversity - the variety of genes, species, and ecosystems Conservation - ethical use and protection of valuable natural resources (e.g. trees, minerals, wildlife, water) Ecosystem - a biological community of interacting organisms and their physical environment Ecosystem services - benefits people obtain from ecosystems (four categories: supporting, provisioning, regulating, and cultural) Richness - the number of species in an ecological community, landscape, or region Pollinators - animals that help plants reproduce by moving pollen from male flowers to female flowers Pollution - the introduction of contaminants into the natural environment (e.g. chemicals, particles, noise, heat, light) ___________________________________________ References: Bartomeus, I., Park, M.G., Gibbs, J., Danforth, B.N., Lakso, A.N. and Winfree, R., 2013. Biodiversity ensures plant–pollinator phenological synchrony against climate change. Ecology Letters, 16(11), pp.1331-1338. Dee LE, Miller SJ, Peavey LE, Bradley D, Gentry RR, Startz R, Gaines SD, Lester SE. 2016 Functional diversity of catch mitigates negative effects of temperature variability on fisheries yields. Proc. R. Soc. B 83: 20161435. http://dx.doi.org/10.1098/rspb.2016.143 Delgado-Baquerizo, M., L. Giaramida, P. B. Reich, A. N. Khachane, K. Hamonts, C. Edwards, L. Lawton, B. K. Singh. 2016. Lack of functional redundancy in the relationship between microbial diversity and ecosystem functioning. Journal of Ecology doi: 10.1111/1365-2745.12585 "FAO, “Global Forest Resources Assessment 2015 - How are the world’s forests changing? ” (Food and Agriculture Organization of the United Nations, Rome, Italy, 2015) FAO, “Contribution of the forestry sector to national economies, 1990-2011” (Food and Agriculture Organization of the United Nations Rome, 2014) Garibaldi, Lucas A., et al. ""Mutually beneficial pollinator diversity and crop yield outcomes in small and large farms."" Science 351.6271 (2016): 388-391. Isbell, Forest, et al. ""Biodiversity increases the resistance of ecosystem productivity to climate extremes."" Nature 526.7574 (2015): 574-577." Isbell, F., Tilman, D., Polasky, S., & Loreau, M. (2015). The biodiversity‐dependent ecosystem service debt. Ecology letters, 18(2), 119-134. Liang J, T Crowther, GFBI, and PB Reich. 2016. Positive biodiversity–productivity relationship predominant in global forests. Science 14 Oct 2016: Vol. 354, Issue 6309, DOI: 10.1126/science.aaf8957. http://science.sciencemag.org/content/354/6309/aaf8957 Liang, J, M Zhou, PC Tobin, AD McGuire, PB Reich. 2015. Biodiversity influences plant productivity through niche–efficiency. Proceedings of the National Academy of Sciences 112:5738–5743. McCarthy, Donal P., et al. "Financial costs of meeting global biodiversity conservation targets: current spending and unmet needs." Science 338.6109 (2012): 946-949. Reich PB, D Tilman, F Isbell, K Mueller, S Hobbie, D Flynn, N Eisenhauer. 2012. Impacts of biodiversity loss escalate as redundancy fades. Science 336:589-592. Tilman, D, PB Reich, J Knops, D Wedin, T Mielke, C Lehman. 2001. Diversity and productivity in a long-term grassland experiment. Science 294: 843-845.
Views: 382309 MinuteEarth
Learn about diffusion, osmosis, and concentration gradients and why these are important to cells. Watch the next lesson: https://www.khanacademy.org/science/biology/membranes-and-transport/passive-transport/v/passive-transport-and-selective-permeability?utm_source=YT&utm_medium=Desc&utm_campaign=biology Missed the previous lesson? https://www.khanacademy.org/science/biology/membranes-and-transport/diffusion-and-osmosis/v/hypotonic-isotonic-and-hypertonic-solutions-tonicity?utm_source=YT&utm_medium=Desc&utm_campaign=biology Biology on Khan Academy: Life is beautiful! From atoms to cells, from genes to proteins, from populations to ecosystems, biology is the study of the fascinating and intricate systems that make life possible. Dive in to learn more about the many branches of biology and why they are exciting and important. Covers topics seen in a high school or first-year college biology course. About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit www.khanacademy.org, join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy's Biology channel: https://www.youtube.com/channel/UC82qE46vcTn7lP4tK_RHhdg?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 1735489 Khan Academy
Biomimicry design, explained with 99% Invisible. Check them out here: https://99percentinvisible.org/ Subscribe to our channel here: http://goo.gl/0bsAjO Japan’s Shinkansen doesn’t look like your typical train. With its long and pointed nose, it can reach top speeds up to 150–200 miles per hour. It didn’t always look like this. Earlier models were rounder and louder, often suffering from the phenomenon of "tunnel boom," where deafening compressed air would rush out of a tunnel after a train rushed in. But a moment of inspiration from engineer and birdwatcher Eiji Nakatsu led the system to be redesigned based on the aerodynamics of three species of birds. Nakatsu’s case is a fascinating example of biomimicry, the design movement pioneered by biologist and writer Janine Benyus. She's a co-founder of the Biomimicry Institute, a non-profit encouraging creators to discover how big challenges in design, engineering, and sustainability have often already been solved through 3.8 billion years of evolution on earth. We just have to go out and find them. This is one of a series of videos we're launching in partnership with 99% Invisible, an awesome podcast about design. 99% Invisible is a member of http://Radiotopia.fm Additional imagery from the Biodiversity Heritage Library: https://www.flickr.com/photos/biodivlibrary/ Vox.com is a news website that helps you cut through the noise and understand what's really driving the events in the headlines. Check out http://www.vox.com to get up to speed on everything from Kurdistan to the Kim Kardashian app. Check out our full video catalog: http://goo.gl/IZONyE Follow Vox on Twitter: http://goo.gl/XFrZ5H Or on Facebook: http://goo.gl/U2g06o
Views: 4520250 Vox
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