RSS Feeds

Earth Science

Space Science

Life Science

Fields of Scientific Study

Nanotechnology

Cancer

Definitions of The Fields of Scientific Study

MICROWAVE FOR ANIMALS' STERILIZATION

April 25, 2003

As soon as human beings domesticated the first wild animals, they faced the challenge of regulating the animals' reproductive function. Even nowadays the issue has not been solved yet. Traditional surgical sterilization techniques are uneconomical and the animals survive them uneasily even if the operation is performed under general anaesthetic. Recently significant invenstments and effort have been made to develop chemical contraceptives in the form of injections or forage supplements. However, they are not always efficient and cause as a rule undesirable physiological and behavioural side effects to the animals (varying from bulls and boars through dogs and cats).

Meanwhile, physiologists are aware of the fact that even the several degree overheating of the genitals oppresses reproductive functions of the mammals' organism. The researchers decided to try SHF electromagnetic fields for this purpose as these fields would ensure local heating and could be measured accurately.

The researchers used two magnetrons (their cumulative capacity being equal to 35 W) as the SHF radiation source. The animals under experiment were fastened on the back in the chute and were imposed to directional irradiation via the horn antenna. For example, the 30-second irradiation at the most was sufficient for the ten-day old boars to achieve the sterilization effect that lasted for the entire period of fattening the boars through to the slaughter, i.e. for eight months. Male dogs and cats require a slightly different approach. The experiments have proved that the microwave radiation frequency and duration should be adjusted to achieve the required effect for various animals of different age.

It seems that this method is nowadays the most effective, secure and humane type of sterilization for farming and domestic animals. The animals do not feel the pain and behave quitely. The lack of changes typical of physiological stress has been shown by the histological study and blood test. The cost of the microwave-sterilization has not been evaluated yet, but it is evidently lower than that of any other applicable sterilization method.
The Kharkov researchers believe that the microwave-technology will help to solve sanitary and ecological problem of outcast' quantity control in towns and will equip veterinaries with a reliable and humane sterilization method for farming animals and domestic pets. Of course, the pets should not be put into the microwave oven - they would not survive that!

Informnauka (Informscience) Agency

Science Research Departments

	The Everything Kids' Science Experiments Book: Boil Ice, Float Water, Measure Gravity-Challenge the World Around You! (Everything Kids Series) by Tom Robinson (Author) Science has never been so easy - or so much fun! With The Everything Kids' Science Experiments Book, all you need to do is gather a few household items and you can recreate dozens of mind-blowing, kid-tested science experiments. High school science teach Tom Robinson shows you how to expand your scientific horizons - from biology to chemistry to physics to outer space. You'll discover answers to questions like: Is it possible to blow up a balloon without actually blowing into it? What is inside coins? Can a magnet ever be "turned off"? Do toilets always flush in the same direction? Can a swimming pool be cleaned with just the breath of one person? Get ready to enter the laboratory and learn how to conduct cool experiments, understand scientific terms...
	Scientific Explorer's Mind Blowing Science Kit for Young Scientists by Scientific Explorer Mind blowing experiments to delight and educate young scientists! Erupt a color changing volcano. Mix up magic ooze with a mind of its own. Play with sand that never gets wet. Mix safe chemicals and watch colors change before your eyes. You'll amaze yourself and your friends as you explore the science behind these truly remarkable reactions.
	The Science Book: Everything You Need to Know About the World and How It Works (National Geographic) by National Geographic (Author), Marshall Brain (Foreword) A delight for the casual reader, yet so complete and wide-ranging that science buffs and students will welcome it, The Science Book encapsulates centuries of scientific thought in one richly illustrated volume. Natural phenomena, revolutionary inventions, and the most up-to-date investigations are explained in detailed text, and 2,000 vivid illustrationsincluding 3-D graphics and pictogramsmake the information even more accessible and amazing to discover. The Science Book offers both a general overview of topics for the browsing reader and more specific information for those seeking deeper insight into a particular subject. Six major sections, ranging from the universe and planet Earth to biology, chemistry, physics, and mathematics, encompass everything from microscopic life...
	Scientific Explorer's Disgusting Science - A Kit for Studying the Science of Revolting Things by Scientific Explorer Grow your own friendly germs and fuzzy molds. Mix up a batch of coagulating fake blood. Even make a stinky intestine. learn the science behind unmentionable bodily functions while doing some truly NASTY Experiments. Ages 8+
	The Complete Book of Science, Grades 5-6 by School Specialty Publishing (Author) The Complete Book of Science for grades 5 to 6 teaches children important science skills! Children complete a variety of exercises that help them develop a number of skills in this 352 page workbook. Including a complete answer key this workbook features a user-friendly format perfect for browsing, research, and review. Over 4 million in print! The best-selling Complete Book series offers a full complement of instruction, activities, and information about a single topic or subject area. Containing over 30 titles and encompassing preschool to grade 8 this series helps children succeed in every subject area! ...
	What Is the World Made Of? All About Solids, Liquids, and Gases (Let's-Read-and-Find-Out Science, Stage 2) by Kathleen Weidner Zoehfeld (Author), Paul Meisel (Author) Did you ever walk through a wall? Drink a glass of blocks? Have you ever played with a lemonade doll, or put on milk for socks? This latest addition to the Let's-Read-and-Find-Out Science series introduces the youngest readers to an important science concept: the differences between solids, liquids, and gases. Any child who wants to know why he can't walk through a wall will enjoy Kathleen Zoehfeld's simple text and Paul Meisel's playful illustrations.
	Scientific Explorer's Tasty Science Chemistry in the Kitchen Kit by Scientific Explorer Who knew science could taste so good? With this kit, you’ll whip up cupcakes, cookies, candy, and more—all in the name of science! Learn what makes cakes rise, candy crystallize, and more real chemistry happen in the kitchen. Tasty Science is packed with ingredients, recipes, activity cards, a test tube laboratory, and lots more to explore the science of taste.
	Popular Science (1-year) by Bonnier Corporation The 'What's New'" magazine of science and technology. Covering the latest developments in cars, electronics, communications, tools, energy, aviation, science, space exploration and much more.
	Science in Seconds for Kids: Over 100 Experiments You Can Do in Ten Minutes or Less by Jean Potter (Author) Make lightning in your room! Keep paper dry under water! Lose weight by going upstairs! See colors that aren’t there! Experience the magic of science with these quick, easy experiments and activities from Jean Potter. You can complete each activity in ten fun-filled minutes or less. Clear, step-by-step instructions and illustrations help you get it right every time. The projects help you learn about everything from why eggs aren’t round to how submarines surface and submerge. You will find most of the required materials already in your home, backyard, or neighborhood, and you can perform the experiments practically anywhere. The 108 activities in this book cover twelve different subject areas, including air, animals, energy, gravity, magnetism, light, the human body, and much more....
	Scientific Explorer's Spa Science Chemistry Kit by Scientific Explorer Whip your bath into a frothy fizzing sea of color and fragrance. Make colorful, fragrant bath gels, bath fizzers, spa lotion, bath balm, a face mask, and shampoo. Mix colors and fragrances to creat your own product line with secret and exclusive mixtures. Explore the science of gels, fragrance and fizzers. Mixing fragrances in the bathtub is a delight for both girls and boys. It’s one of the best ways to introduce them to the fun of science. Kids will spend hours in the tub with this kit mixing ingredients to make foaming frothing baths and smelling potions and conducting science experiments to see how scents affect our alertness, moods and memories. Comparing the responses of siblings, parents and friends makes this a shared adventure the entire family will enjoy