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The Common Core State Standards are designed to prepare students to succeed. The standards are evidence- and research-based, aligned with college and work expectations, include rigorous content and skills, and are informed by other top performing countries. They were developed in consultation with teachers and parents ...
IEEE 802.11 is a series of protocols for wireless networking. Often these are called Wireless LAN, WLAN, or Wi-Fi. Such a protocol allows computers that have the needed radio parts to communicate with each other, without a cable. There are many types of Wi-Fi standards, known as 802.11 a, b, g, n, and recently ac & ad....
Early California: pre-1769–1840s: Native California "Daisy and Lena about six months after the missionaries came. Under love, and the power of the Gospel she had become a Christian, and had gone through the first reader." California's 1850 Act, which enabled landowners to act as the "protectors" of Native American chil...
Imagine your child reading, but with all wrong sounds and incorrect pronunciation. What will it sound like? How will it help them? In this case, Phonics plays a very important role in developing your child’s reading skills. The idea behind phonics is that letters represent sound of spoken language and there is a logica...
Unit 1: Your Feelings This unit focusses on identifying and promoting positive health behaviors, including physical, mental, and emotional health. Lesson 1 Staying Healthy How do you keep your body, relationships and mind healthy? Students will demonstrate ways in which they can enhance and maintain their health and we...
The phrase “no taxation without representation” was used in Boston but no one is sure who first used it. Boston politician James Otis was famously associated with the phrase “taxation without representation is tyranny. ” The British Parliament had controlled colonial trade and taxed imports and exports, and the America...
Carbon dioxide and carbon dioxide are two gases and they are both composed of carbon and oxygen. Both of them are also present in air so they are around us. The Difference Between Carbon monoxide and Carbon dioxide is that carbon monoxide only has one oxygen atom while carbon dioxide has two oxygen atoms. This changes ...
The next time you go to the New Jersey shore (What other shore is there?), look closely at the clam shells. Or run your finger down the outside of the shell. If it's an ocean quahog (Arctica islandica), you could find as many as 405 small ridges. Yes, you guessed where this is going: A 405-year-old shell. It counts tim...
This colourful image shows a cosmic lighthouse known as the Egg Nebula, which lies around 3000 light-years from Earth. The image, taken with the NASA/ESA Hubble Space Telescope, has captured a brief but dramatic phase in the life of a Sun-like star. The Egg Nebula is a ‘preplanetary nebula’. These objects occur as a dy...
Python String-: Strings can be created by enclosing the character or the sequence of characters in the quotes. Python allows us to use single quotes, double quotes, or triple quotes to create the string.For example str=" welcome in python" String Method in Python-: Most of the Python string methods are built into the s...
In the year 1795 the celebrated French printer and type-founder, FIRMIN DIDOT of Paris, coined the name “STEREOTYPE” for printing from solid lead plates. Stereo, in Greek, means rigid, solid, and the Greek word typos means type, letter, character. Hence the combined word stereotype means a rigid, solid plate made of ty...
Comets are traveling balls of astronomic history. Their origins go back to the formation of the solar system, approximately 4.6 billion years ago. When the sun was formed, it caused gases and dust to be dispelled into space. Some of these materials later formed planets, while quantities of these gases and dust settled ...
Ganymede's Auroras Point To Ocean Below Its Icy Surface The Hubble Space Telescope has revealed that Jupiter’s largest moon, Ganymede, has a vast ocean below its icy surface that’s larger than all of Earth’s surface water. The telescope picked up these clues from lights high in Ganymede’s thin atmosphere that shimmer w...
Often when we hear the word sustainability we think ‘caring for the environment’, reduce, reuse, recycle, gardening etc. However, education for sustainability is more than just looking after the environment. It includes three pillars as set out by the United Nations in 1992 – the Social pillar (includes social and cult...
Approximately one third of Jesus’ teachings in the New Testament consist of some forty parables and twenty A parable is a form of speech used to illustrate and make a point with the help of a picture. Recognizable and perhaps a story that the audience can identify with, the picture is intended to provide an understandi...
14 Elementary Data Types Variables are vital to nearly all programming languages. In Python, variables are “names that refer to data.” The most basic types of data that can be referred to are defined by how contemporary computers work and are shared by most languages. Integers, Floats, and Booleans Consider the integer...
Caitlin Maltbie 009606309 Take Home Essay Question 2: Racial Wealth Gap Between Blacks and Whites After racialdiscriminationwas made illegal in the 1960s, blatant and bigotracismhas seemed to disappear, yet remaining racist attitudes have continued to put blacks at an overall disadvantage due to the progression of thes...
1910-1920 Mexican Revolution You would think that this war had nothing to do with Anishinabe People. That is incorrect however! As mentioned over and over, 100,000's of Indians and even large numbers of blacks, fled to north Mexico to escape from evil white intentions. That occurred primarily in 18th and 19th century y...
Air Force Day is a celebration of airpower in the aftermath of World War Two. This observance is slightly complicated due to the nature of American air power at the time, but the designation of Air Force Day was an important step toward the recognition of United States air superiority in both Europe and Asia at the tim...
What Does Open Database Connectivity Mean? Open Database Connectivity (ODBC) is an interface standard for accessing data and communicating with database systems, regardless of the operating system (OS), database system (DS) or programming language. This is accomplished by using ODBC drivers that serve as a bridge betwe...
The Yurok are Native Americans of northern California. Some Yurok traditionally lived in small villages on the coast of the Pacific Ocean. Others lived along the lower Klamath River. The Yurok built rectangular houses using wood from redwood trees. They hunted, fished, and gathered nuts, berries, and other wild plant f...
A new look inside 2,000-year-old concrete – made from volcanic ash, lime (the product of baked limestone), and seawater – has provided new clues to the evolving chemistry and mineral cements that allow ancient harbor structures to withstand the test of time. The research has also inspired a hunt for the original recipe...
Pumpkin Plant Life Cycle A common sight in autumn, bright orange pumpkins bring color to the season. They are the fruit of the pumpkin plant and, aside from being carved into jack-o'-lanterns, can be used in making pies, puddings, breads, cookies and soups. Pumpkins are an annual plant and grow to maturity in a single ...
Today there two earthquakes were measured at Bárðarbunga – 3.9 on Richter Scale. Besides that, water from its geothermal areas probably finds it way from there to the river Jökulsá á Fjöllum. In 2014 the volcanic site of Bárðarbunga erupted. It was called the Holuhraun eruption, because the lava came up to the surface ...
Accounting, also known as accountancy, is the measurement, processing, and communication of financial and non-financial transactions and related information about businesses and corporations. Accountants are the ones who carry out the task of financial reporting, or accounting. Accounting is thousands of years old and ...
In the 1800s, westward expansion brought settlers and their livestock into direct contact with native predator and prey species. Much of the wolves’ prey base was destroyed as agriculture flourished. With the prey base removed, wolves began to prey on domestic stock, which resulted in humans eliminating wolves from mos...
Emancipation Proclamation (September 17, 1862) Following the Union Army victory at Antietam, Maryland on September 17, 1862, President Abraham Lincoln issued a preliminary emancipation proclamation. This document gave the states of the Confederacy until January 1, 1863 to lay down their arms and peaceably reenter the U...
The Jack Spratt Coffee House on Chicago’s South Side played an early, unsung role in the civil rights movement. In 1942, it was the scene of one of the first nonviolent sit-ins, presaging the more celebrated lunch counter sit-ins that focused the nation’s attention on racial discrimination almost 20 years later. Photo ...
Music is used in many ways, including enjoyment, education and for therapeutic purposes. Now, research shows that using music to learn a physical task can aid in developing the parts of the brain that process sound and control movement. The team conducting the study at the University of Edinburgh published their findin...
The interstellar object, which is currently already outside the solar system, according to some scientists, has a natural explanation. A new study published in Nature confirms that ‘Oumuamua’s peculiar acceleration is due to the release of molecular hydrogen gas. According to astrochemist Jennifer Bergner of the Univer...
Lectures and Beyond Depending upon your Course Goals and desired Student Learning Outcomes, a well-crafted lecture can be engaging and informative. As a complementary tool, experiential learning strategies can help students process and apply key concepts, and theories. 1. Clearly define the goals of lectures in your co...
Lesson 2 Equivalent Decimals Let’s think about equivalent decimals. Warm-up True or False: Equivalent Fractions Decide whether each statement is true or false. Be prepared to explain your reasoning. Activity 1 Card Sort: Diagrams of Fractions and Decimals Your teacher will give you a set of cards. Each large square on ...
As other’s have suggested, one important purpose of puns in Shakespeare's Romeo and Juliet is to lighten the mood so that the audience remains entertained throughout the play despite the tragic ending they know is coming. Another important purpose of the puns is to have the audience see the skillful way in which Shakes...
African American History Month 2020 VI It is certainly true that, in the 21st century, more African American artists than ever before—in a wider range of expression—are participating in the American “art world.” As African Americans continue to experience injustice in terms of access to education, housing, healthcare, ...
What are pelagic deposits? Ocean deposits usually consist of unconsolidated sediments, which can come from various sources, and are deposited at the ocean floor. Thickness of these deposits vary greatly from one ocean to another (Fig.1). Ocean deposits can be differentiated on the basis of their composition, source, me...
1. How many cards did he drop? 2. Write down a guess. I’d start the class with Estimation 180 Day 4 because Robert Kaplinsky made a good point, will the students ask for the information I’m providing in Act 2? If not, how can we lead them there? The lamppost estimation could get the kids into the needed mindset. 3. Wha...
True innovation is hard to find, as few things come out of nothing. Take the now ubiquitous selfie, for example. The format may have changed but the concept of making self-portraits is hundreds, if not thousands of years old. The same is true of many inventions that we typically think of as modern, some of which actual...
Bats fly with breathtaking precision because their wings are equipped with highly sensitive touch sensors, cells that respond to even slight changes in airflow, researchers have demonstrated for the first time. Scientists from Johns Hopkins University, as well as Columbia University and the University of Maryland, dete...
A robust body of research tells us that flexibility and accuracy with fractions are among the most critical elements for student success in later mathematics. One of the most important jobs of middle-grade elementary teachers is to support all children to build on their understanding of whole numbers and conceptualize ...
3.7. Elasmobranch biology Elasmobranchii is a subclass of Chondrichthyes or cartilaginous fish, including the sharks (superorder Selachii) and the rays, skates, and sawfish (superorder Batoidea). Sharks are an ancient class of fish that first appeared about 400 million years ago and have remained virtually unchanged fo...
The moving, sailing and sliding rocks of Racetrack Playa, Death Valley National Park in California have garnered the attention of many scientists and visitors throughout the years. The Racetrack Playa is a dry lake featuring the race track imprints of the moving rocks. The moving rocks are a geological phenomenon where...
Celts in Asia Minor - Part 4 of Celtic History Explained Co-written by Jeff King and Arienne King In part 3 of Celtic History Explained, we talked about the disastrous invasion of the Balkans by Celtic tribes led by their king Brennus. These European tribes were known to the Greeks as the Keltioi (Celts), the Galatae (...
Over the last few weeks, P5-7 have been taking part in a Renewables STEM Challenge run by the Glasgow Science Centre. They learnt about different kinds of renewable energy, including how these work and why we need to use more renewable sources of energy, and also had great fun making working wind turbines. The final pa...
The Lakota people or the people of Standing Rock are one of the first original Native American tribes who inhabited the North Americas before the arrival of Europeans. Often referred to as the Great Sioux Nation, these people can be divided into three distinct groups based on the language and geography; Dakota (Santee,...
Back to: GOVERNMENT SS1 Welcome to class! In today’s class, we will be talking about the constitution and constitutionalism. Enjoy the class! Constitution and Constitutionalism A constitution can be referred to as a book or document which contains the rules and principle by which a state is governed. It is the fundamen...
Life on Earth is getting older. No, that isn't a reference to people living longer (although that is happening, too). It refers to how long ago life first emerge on this planet. This year alone, a number of studies have asserted that life is older than we believed, and now, researchers from the University of Tokyo have...
Bullying is a widespread problem that has lasting effects on students. According to the Centers for Disease Control and Prevention (CDC), around 1 in 5 teens have been bullied on high school property. Electronic bullying, or cyberbullying, is even more prevalent. Over 1 in 6 teens reported experiencing cyberbullying wi...
Kivas were architecturally unique rooms or structures built by Ancestral Puebloans in southwest Colorado that served important ceremonial and social functions. Architecturally, they are recognized in the archaeological record in southwestern Colorado as far back as AD 500, although there are widespread inconsistencies ...
As the world becomes increasingly aware of the need to reduce carbon emissions and adopt sustainable practices, finding ways to reduce energy consumption has become a top priority for many businesses and households. While solar panels have been a popular choice for those seeking to generate clean energy, they can be ex...
Fog is often described as a stratus cloud resting near the ground. Fog forms when the temperature and dew point of the air approach the same value (i. e, dew-point spread is less than 5°F) either through cooling of the air (producing advection, radiation, or upslope fog) or by adding enough moisture to raise the dew po...
What Is It? An abscess is a limited area of pus formed as a result of a bacterial infection. The body's immune system reacts to the infection, and sends white blood cells to the area to try to get rid of the bacteria. Pus is a mixture of live and dead white blood cells, enzymes and parts of destroyed cells and tissues....
Native American Tools, Implements, and Utensils. While a tool is that with which something is made, an implement that with which work is done, and a utensil that in or on which something is prepared or used up, they can not always be distinguished among primitive peoples, who utilize one thing for many purposes. Many f...
ROGUE proteins responsible for mad cow disease have been discovered in the saliva of cows infected as part of an experiment. The finding might pave the way for a simple test for BSE before the symptoms are apparent. The result from a team led by Yuichi Murayama at the National Institute of Animal Health in Tsukuba, Jap...
Introduction to : Studying triangles is exactly what it sounds like—studying three angles. If that's the case, we'd better go back (to the future?) and dust some cobwebs off those angle concepts we learned a few chapters ago. Here's a quick refresher: - Acute angles have measures of less than 90°. They're the cute litt...
Here, [A] and [B] are the concentrations of A and B. x and y depend on which step is rate-determining. If the reaction mechanism is a very simple one, where A and B hit each other and then go to products through one transition state, then x=a and y=b. k is the rate constant of the reaction. This changes with temperatur...
Many people assume that, as a direct result of women’s war work during the First World War, they were given the vote on equal terms to men. However, they were not. The move for women to have the vote started in 1897 when Millicent Fawcett founded the National Union of Women’s Suffrage. She believed in peaceful protest....
Difficulty visualising place value groupings - Provide the student with 30 single iceblock sticks and 20 bundles of 10 sticks. Place a two-digit number in front of the student, for example, 32, and ask the student to model it with the sticks. - Provide the student with place value blocks (ones, tens, and hundreds) and ...
Women's contribution to both wars was significant; though the attitudes towards their contribution were typically paternalistic. While some women managed to receive a tertiary education and others to go into non-traditional career paths, for the most part women were expected to be primarily involved in "duties at home"...
A Brief History of the Double Bass by Lawrence Hurst The modern double bass is not a true member of either the violin or viol families. Most likely its first general shape was that of a violone, the largest member of the viol family. Some of the earliest basses extant are violones, (including C-shaped sound holes) that...
In logic, extensionality, or extensional equality refers to principles that judge objects to be equal if they have the same external properties. It stands in contrast to the concept of intensionality, which is concerned with whether the internal definitions of objects are the same. Consider the two functions f and g ma...
Nobody knows exactly why dinosaurs went extinct but scientists are considering and studying a few main ideas. One idea is that dinosaurs were no longer able to evolve. Throughout time, all living creatures have had to adapt to circumstances such as weather, availability of foods, and predators! If dinosaurs were no lon...
The trend for the past several years has been to take as much action as possible to reduce carbon-based emissions, particularly carbon dioxide (CO2), in an effort to trim the effects of global warming. A report by the University Herald cites a study by the University of New South Wales (granted, its name and date of pu...
(NaturalNews) Scientists have discovered a type of bacteria that can survive in outer space for more than a year. Researchers carried out the experiment on a type of bacteria known as OU-20, which lives in limestone cliffs off the coast of the English fishing village of Beer. It is closely related to a group of cyanoba...
Zine Teacher Guides Introducing the middle school zine teacher guides The Teacher Guide for each middle school zine is a comprehensive classroom unit of 4–6 thematic lessons. Each lesson’s activities and discussions lead students to a deeper understanding and active application of the short texts in the zine. Download ...
Chimpanzees at Gombe Stream National Park in Tanzania. Credit: Ian Gilby Humans share about 99 percent of our genomes with chimpanzees. Now, research finds we share something else: gut bacteria. The bacterial colonies that populate the chimpanzee intestinal tract are mirror images of those found in the human gut, resea...
The Chesapeake always is on the minds of members of the William & Mary geology team investigating effectiveness of riparian buffers. Their research, which is funded by the Virginia Environmental Endowment, is part of the overall effort to save the Bay. Riparian buffers are thin bands of forest used to prevent agricultu...
Process of change from an agrarian, handicraft economy to one dominated by industry and machine manufacture. It began in England in the 18th century. Technological changes included the use of iron and steel, new energy sources, the invention of new machines that increased production (including the steam engine and the ...
The famous Pole Star lies less than one degree from the Northern Celestial Pole, and so always lies north from an Earth-bound observer's point of view. Its name comes from Latin, Stella Polaris, meaning simply 'Pole Star'. Its alternative and much rarer name, Cynosura, comes from the Greek for 'tail of the dog'. As the...
Micronutrient Supplements: Vitamin A and Zinc Vitamin A and Zinc are specific micronutrients that are both vital for child survival. When a child does not get enough vitamin A, there is a higher risk of illness and death from common infections like diarrheal disease and measles. Vitamin A is also vital for eyesight: de...
Build a Light Bulb - Circuit Science When you are conducting experiments and demonstrations using electricity, you'll use the science of circuits. Amazing things are possible with circuits including alarms, radios, and lights. In the Build a Light Bulb experiment, you'll use household items to construct a complete circ...
One of the lowest mass supermassive black holes ever observed in the middle of a galaxy has been identified, thanks to NASA's Chandra X-ray Observatory and several other observatories. The host galaxy is of a type not expected to harbor supermassive black holes, suggesting that this black hole, while related to its sup...
The Púchov culture was an archaeological culture named after site of Púchov-Skalka in Slovakia. Its probable bearer was the CelticCotini and/or Anartes tribes. It existed in northern and central Slovakia (although it also plausibly spread to the surrounding regions) between the 2nd century BCE and the 1st century CE. T...
\|This article needs additional citations for verification. (July 2008)\| Norms are concepts (sentences) of practical import, oriented to effecting an action, rather than conceptual abstractions that describe, explain, and express. Normative sentences imply "ought-to" types of statements and assertions, in distinction to...
Portolan charts, it was always assumed, were compiled by medieval European mapmakers from contemporary sources. A Dutch doctoral dissertation now disproves this: these nautical charts are impossibly accurate, not just for medieval Europe, also for other likely sources, the Byzantines and the Arabs. So who made them – a...
Egocentrism is characterized by preoccupation with one's own internal world. Egocentrics regard themselves and their own opinions or interests as being the most important or valid. To them, self-relevant information is seen to be more important in shaping one’s judgments than are thoughts about others and other-relevan...
Before we get into Newton’s Second Law, we need to get up to speed with acceleration. In physics acceleration is defined as a change in velocity. In other words, it is a change in speed or a change in direction. It is how much time it takes something to go from one velocity to another. Remember that velocity is speed a...
The pH scale tells us the strength of an acid or a base, just like kilograms tells us how heavy an object is. Acids and bases are all around us, most liquids are either basic or acidic. Although distilled water has a pH of 7 meaning it is neutral. Stay updated and subscribe to "Science News For Kids" our monthly e-zine...
Yummy! S’mores are on the way! Did you ever toast marshmallows over a campfire? The sweet treats singe on the outside and melt on the inside. Both the fire and the toasted marshmallows are evidence of chemical changes. In the process of burning, the wood changes to ashes and gases, and the outside of the marshmallow tu...
Johns Hopkins researchers have discovered a discrete region of themonkey brain that processes pitch, the relative high and low points ofsound, by recognizing a single musical note played by differentinstruments. Given the similarities between monkeys and man, humans may have asimilar pitch-processing region in the brai...
The Khitan adopted a Chinese name for their dynasty and Chinese reign titles and temple names for their emperors, built a Chinese-style capital city, and devised a Chinese-influenced administrative system and written scripts. Thus, they governed in their traditional domains and in the territories they occupied in China...
Pacific Island Ecosystems Research Center Native Species Biology The Hawaiian Islands are a chain of volcanoes which erupted from the ocean floor in the middle of the Pacific Ocean. They are 3,800 kilometers (2,400 miles) from the nearest continental shores and so all terrestrial plants and animals had to arrive by cha...
A culture's values are its ideas about what is good, right, fair, and just. Sociologists disagree, however, on how to conceptualize values. Conflict theory focuses on how values differ between groups within a culture, while functionalism focuses on the shared values within a culture. For example, American sociologist R...
About one hundred years ago, S. Arrhenius brought forward a hypothesis that the atmospheric temperature of at the surface of the Earth was increasing under the influence of the glasshouse effect created by carbonic acid gas. Since that time, the researchers, when simulating the planet climate, have mainly focused on O2...
Discrimination is literally when something or someone is distinguished from someone or something. Discrimination against is when a person is treated unfairly or badly because of something about that person. The Universal Declaration of Human Rights affirms that all persons must be protected any kind of discriminations ...
bean beetle, common name for a destructive beetle, Epilachna varivestis, of the ladybird beetle family. Although nearly all other members of this family are beneficial carnivores, the bean beetle attacks leguminous plants, especially beans. Both larva and adult feed on the undersides of leaves and sometimes on the pods...
Sight is a very powerful sense and easily dominates our lives, and since 1976, researchers have known that it can actually override at least our sense of hearing. The McGurk effect is when someone hears one sound, but sees something associated with another sound, and believes the other sound is what they actually heard...
King Tut’s tomb was comprised of four main rooms; the antechamber, the annex, the burial chamber, and the treasury room. This tomb was extraordinary as it was only one of two pharaoh tombs ever discovered in Egypt that had not been robbed of its treasure. The other pharaoh’s tomb found, Psusennes I, was the king who re...
The Gruithuisen Domes The Gruithuisen Domes are located on the northeast border of Oceanus Procellarum at the highlands-mare boundary. The three Gruithuisen domes are named for nearby Gruithuisen crater. The two largest domes have been unofficially referred to for many years as Gruithuisen Gamma and Gruithuisen Delta, ...
Submitted by C.J. Johnson In mid-April 1861¸ the War Between the States began with the shelling of the Federal-held Fort Sumter, outside Charleston, South Carolina. Initially, there were no Union or Confederate black regiments. It was not until the Emancipation Proclamation that black troops were allowed in the Union a...
Otto Hahn (1879-1968) was a German Chemist, who was awarded the Nobel Prize for Chemistry in 1944 – for his work in discovering Nuclear Fission. He was a distinguished Chemist who worked in the pioneering fields of radio chemistry. After the Second World War, he was a campaigner against the use of nuclear weapons and b...
Black History Resources in PBS LearningMedia Celebrate Black History Month in your classroom by highlighting the African American artists, educators, icons, and influential leaders that have impacted our nation’s history and culture. Use PBS LearningMedia to enhance your lessons with interviews, historic images and vid...
Overview of the Environmental Effects The grounding of the Sea Empress in February 1996 caused one of the largest and most environmentally damaging oil spills in European history. About 72,000 tonnes of crude oil were released into the seas around the coast of South-West Wales, a region renowned for the beauty and dive...
Some writers from other parts of the United States have mistakenly assumed the term Creole to refer only to people of mixed racial descent, but this is not the traditional Louisiana usage. In fact some locals, especially those of relatively pure French and Spanish Creole descent, have often argued that the traditional ...
Foundations of Big Bang Cosmology The Big Bang model of cosmology rests on two key ideas that date back to the early 20th century: General Relativity and the Cosmological Principle. By assuming that the matter in the universe is distributed uniformly on the largest scales, one can use General Relativity to compute the ...
The Human Rock Cycle Students, like adults, have various learning styles. Some of us learn best by talking and listening, others by reading. Many of us, including young students, learn best by doing — by moving, exploring, touching, and feeling. Acting out geologic processes can be a powerful way of building understand...
How many words can you think of that mean "home"? Your fourth grader will learn 24 words that will add accuracy and intrigue to his writing. Vocabulary building is important at any age. With this worksheet, your child will learn 24 synonyms for pretty, and get to practice them. Improving vocabulary is an important step...
Severe acute respiratory syndrome (SARS) is a serious illness caused by a virus called a coronavirus. SARS was first described in Asia in February 2003. It was discovered in Chinese patients who had fever and severe breathing problems. In spring 2003, SARS quickly spread among humans with close person-to-person contact...
The Amistad Rebellion Obstacles and Opportunities The Amistad captives had been kidnapped and transported to Cuba from Africa in violation of Spanish law barring slave trafficking. The Cuban enforcement of this statute was, however, notoriously lax. Bribes and a little careful night navigation were usually all that wer...
The Debye sheath (also electrostatic sheath) is a layer in a plasma which has a greater density of positive ions, and hence an overall excess positive charge, that balances an opposite negative charge on the surface of a material with which it is in contact. The thickness of such a layer is several Debye lengths thick,...
Forecasting is a method or a technique for estimating future aspects of a business or the operation. It is a method for translating past data or experience into estimates of the future. It is a tool, which helps management in its attempts to cope with the uncertainty of the future. Forecasts are important for short-ter...

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