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Bacillus thuringiensis
B. thuringiensis (commonly known as 'Bt') is an insecticidal bacterium, marketed worldwide for control of many important plant pests - mainly caterpillars of the Lepidoptera (butterflies and moths) but also mosquito larvae, and simuliid blackflies that vector river blindness in Africa. Bt products represent about 1% of the total ‘agrochemical’ market (fungicides, herbicides and insecticides) across the world. The commercial Bt products are powders containing a mixture of dried spores and toxin crystals. They are applied to leaves or other environments where the insect larvae feed. The toxin genes have also been genetically engineered into several crop plants (see Agrobacterium). The method of use, mode of action, and host range of this biocontrol agent differ markedly from those of Bacillus popilliae.

Segnalato da: Daniela Garelli
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http://http://helios.bto.ed.ac.uk/bto/microbes/bt.htm

Bacillus thuringiensis
Le nom de Bacillus thuringiensis fut, suite à la découverte de S. Ishiwata, introduit en 1911 par le biologiste E. Berliner qui l’avait remarqué dans des silos à grains de Thuringe. Cette bactérie est une bactérie Gram+ qui fait partie des bactérie à endospores. Elle reste très courante dans la nature : on la trouve dans près de 18% des sols naturels. C’est un parasite d’insecte qui se développe abondamment dans les silos à grains et les greniers où les larves d’insectes sont nombreuses et les conditions climatiques et de luminosité sont favorables.
Segnalato da: Daniela Garelli
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http://http://quasimodo.versailles.inra.fr/inapg/ostrizone/lutte/biopesticide.htm

Temperature, Heat, and Expansion
TEMPERATURE

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Converting Between Temperature Scales
You read that the temperature in Paris is 20 degrees Celsius. What is this value in degrees Fahrenheit? This page from USA TODAY will show you how to convert between Celsius and Fahrenheit.

Thermometers and Thermostats

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Segnalato da: iolanda perugini
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http://www.phschool.com/science/cpsurf/heat/3_21lear.html

Heat Transfer
CONDUCTION

Firewalking
How is it possible to walk
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Segnalato da: iolanda perugini
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http://www.phschool.com/science/cpsurf/heat/3_22lear.html

changeof phase
evaporation condensation...
Segnalato da: iolanda perugini
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http://www.phschool.com/science/cpsurf/heat/3_23lear.html

Thermodynamics
ABSOLUTE ZERO

Temperature and Absolute Zero
Why do some things feel hot and others feel cold? What is absolute zero? Find out the answers to these and other questions in this lesson from the Physics 2000 site maintained by the University of Colorado at Boulder.

The Biggest Chill

Segnalato da: iolanda perugini
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http://www.phschool.com/science/cpsurf/heat/3_24lear.html

states of matter
states ofmatter
Segnalato da: iolanda perugini
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http://www.edinformatics.com/math_science/states_of_matter.htm

Unit of thermodynamic temperature (kelvin)
Unit of thermodynamic temperature (kelvin)
Segnalato da: iolanda perugini
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http://physics.nist.gov/cuu/Units/kelvin.html

what is heat?
The Universe is made up of matter and energy. Matter is made up of atoms and molecules (groupings of atoms) and energy causes the atoms and molecules to always be in motion - either bumping into each other or vibrating back and forth. The motion of atoms and molecules creates a form of energy called heat or thermal energy which is present in all matter. Even in the coldest voids of space, matter
Segnalato da: iolanda perugini
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http://coolcosmos.ipac.caltech.edu//cosmic_classroom/light_lessons/thermal/heat.html

what is temperature
The atoms and molecules in a substance do not always travel at the same speed. This means that there is a range of energy (the energy of motion) among the molecules. In a gas, for example, the molecules are traveling in random directions at a variety of speeds - some are fast and some are slow.

Temperature is a measure

Segnalato da: iolanda perugini
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http://coolcosmos.ipac.caltech.edu//cosmic_classroom/light_lessons/thermal/temperature.html

heat vs temperature
differenza calore temperatura
Segnalato da: iolanda perugini
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http://coolcosmos.ipac.caltech.edu//cosmic_classroom/light_lessons/thermal/differ.html

measuring temperature
There are many ways to detect heat. The method chosen often depends on what heat source we are trying to measure. For example, the way we detect the heat in the air is different from how we detect heat from a fire or heat from objects in deep space.

We have all felt various levels of heat. Our skin is a good detector of heat and we interpret the average molecular motion within an object as a feeling that the object is hot or cold. However our skin does not always give us consistent measurements of heat energy.

Segnalato da: iolanda perugini
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http://coolcosmos.ipac.caltech.edu//cosmic_classroom/light_lessons/thermal/measure.html

Hands-On-Physics HEAT & TEMPERATURE
HEAT & TEMPERATURE
Segnalato da: iolanda perugini
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http://hop.concord.org/h1/phys/h1p.html

About Temperature
What is Temperature?
In a qualitative manner, we can describe the temperature
Segnalato da: iolanda perugini
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http://www.eo.ucar.edu/skymath/tmp2.html

Temperature
Temperature
We measure temperature by a variety of means. The most primitive measurement is direct sensing by the human body. We immediately discern whether something we touch is hot or cold relative to our own body. Furthermore, we can detect a hot stove from a

Segnalato da: iolanda perugini
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http://physics.nmt.edu/~raymond/classes/ph13xbook/node221.html

Energy, Work, Heat, Temperature
Energy, Work, Heat, Temperature

Segnalato da: iolanda perugini
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http://dbhs.wvusd.k12.ca.us/webdocs/Thermochem/Energy-Work-Heat-Temp.html

Juice_01
Immagine relativa al percorso "I Feed RSS"
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http://www.edurete.org/public/upload/juice_screen_01.gif

Juice_02
Immagine relativa al percorso didattico "Feed RSS"
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http://www.edurete.org/public/upload/juice_screen_02.gif

Juice_03
Immagine relativa al percorso didattico "Feed RSS"
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http://www.edurete.org/public/upload/juice_screen_03.gif

Juice_04
Immagine relativa al percorso didattico "Feed RSS"
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http://www.edurete.org/public/upload/juice_screen_04.gif

image1
wlan capus
Segnalato da: Carlo GINO SIS A042
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http://www.edurete.org/public/upload/image1.jpg

image0
burkina
Segnalato da: Carlo GINO SIS A042
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http://www.edurete.org/public/upload/image0.jpg

image2
IEEE MODEL
Segnalato da: Carlo GINO SIS A042
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http://www.edurete.org/public/upload/image2.jpg

Histology
Basic tissue type, skin, inflammation, tools. Cardiovascular system,Respiratory system,Renal system. Nervous tissue,skin, muscle,bone & cartilage,eye,ear.
Endocrine system,Reproductive systems, Gastrointestinal system

Segnalato da: Federica Bussi
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http://www.siumed.edu/%7Edking2/index.htm

Histologie, Embryologie, Cytogénétique
Les epitheliums,le tissu conjonctif,le tissu adipeux,les tissus minéralisés,l'ossification, le tissu musculaire,le tissu nerveux,l'appareil cardio-vasculaire, le tissu sanguin La peau

Segnalato da: Federica Bussi
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http://lhec.teso.net/enseignements/p1/polyp1/tdm.html

Historia de la ciencia
La Histología en España en el siglo XIX
Segnalato da: Federica Bussi
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http://www.termila.com/CONTENIDOHISTOLOGIA.html

Bone physiology
Bone physiology
Remodeling, Bone strength, Biomechanics, Mineralization density,Physiology of osteoporosis treatments, Notes about leptins Notes about arteriosclerosis and osteoporosis, Bone changes in pregnancy and lactation Animated illustrations.Quiz
Segnalato da: Federica Bussi
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http://courses.washington.edu/bonephys/ophome.html

Metabolismo osseo
Struttura e composizione ossea, Cellule ossee,Fibrille ossee,Minerale osseo,Composizione ossea,Metabolismo osseo,Flusso e trasformazioni del materiale,Regolazione del metabolismo osseo,Malattie metaboliche ossee
Segnalato da: Federica Bussi
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http://www.pforster.ch/GruPraTer/Osteoporosi/MetabolOsseo.htm#Metabolismo

Articles: Calcium metabolism
Example of title: Effects of calcium, dairy product, and vitamin D supplementation on bone mass accrual and body composition in 10-12-y-old girls: a 2-y randomized trial.
Nutrition Influences Skeletal Development from Childhood to Adulthood: a Study of Hip, Spine, and Forearm in Adolescent Females
Diet in midpuberty and sedentary activity in prepuberty predict peak bone mass,...

Segnalato da: Federica Bussi
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http://www.ajcn.org/cgi/content/abstract/54/1/245S

Compressione
Definizione fisica della compressione nel sito di Wikipedia, l'enciclopedia libera.
Segnalato da: Barbara Ruozzi
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http://it.wikipedia.org/wiki/Compressione_fisica

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