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Shannon Piper
Works at Aristocrat Technologies, Inc.
Attended Ashford University
Lives in Las Vegas, NV
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Shannon Piper

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For the first time a team of researchers has discovered of a ring of rocks circling a very young star. These 'pebbles' are believed to be a crucial link in formation of planets. Dr Jane Greaves of the University of St Andrews presented the work at the National Astronomy Meeting at
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Is there any harm to be incurred by just pulling a flash drive out? Why do we need safe removal at all?
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Misconceptions About Evolution and Their Corrections

MISCONCEPTION: Evolution is a theory about the origin of life.

CORRECTION: Evolutionary theory does encompass ideas and evidence regarding life's origins (e.g., whether or not it happened near a deep-sea vent, which organic molecules came first, etc.), but this is not the central focus of evolutionary theory. Most of evolutionary biology deals with how life changed after its origin. Regardless of how life started, afterwards it branched and diversified, and most studies of evolution are focused on those processes.

MISCONCEPTION: Evolutionary theory implies that life evolved (and continues to evolve) randomly, or by chance.

CORRECTION: Chance and randomness do factor into evolution and the history of life in many different ways; however, some important mechanisms of evolution are non-random and these make the overall process non-random. For example, consider the process of natural selection, which results in adaptations — features of organisms that appear to suit the environment in which the organisms live (e.g., the fit between a flower and its pollinator, the coordinated response of the immune system to pathogens, and the ability of bats to echolocate). Such amazing adaptations clearly did not come about "by chance." They evolved via a combination of random and non-random processes. The process of mutation, which generates genetic variation, is random, but selection is non-random. Selection favored variants that were better able to survive and reproduce (e.g., to be pollinated, to fend off pathogens, or to navigate in the dark). Over many generations of random mutation and non-random selection, complex adaptations evolved. To say that evolution happens "by chance" ignores half of the picture. To learn more about the process of natural selection, visit our article on this topic. To learn more about random mutation, visit our article on DNA and mutations.

MISCONCEPTION: Evolution results in progress; organisms are always getting better through evolution.

CORRECTION: One important mechanism of evolution, natural selection, does result in the evolution of improved abilities to survive and reproduce; however, this does not mean that evolution is progressive — for several reasons. First, as described in a misconception below (link to "Natural selection produces organisms perfectly suited to their environments"), natural selection does not produce organisms perfectly suited to their environments. It often allows the survival of individuals with a range of traits — individuals that are "good enough" to survive. Hence, evolutionary change is not always necessary for species to persist. Many taxa (like some mosses, fungi, sharks, opossums, and crayfish) have changed little physically over great expanses of time. Second, there are other mechanisms of evolution that don't cause adaptive change. Mutation, migration, and genetic drift may cause populations to evolve in ways that are actually harmful overall or make them less suitable for their environments. For example, the Afrikaner population of South Africa has an unusually high frequency of the gene responsible for Huntington's disease because the gene version drifted to high frequency as the population grew from a small starting population. Finally, the whole idea of "progress" doesn't make sense when it comes to evolution. Climates change, rivers shift course, new competitors invade — and an organism with traits that are beneficial in one situation may be poorly equipped for survival when the environment changes. And even if we focus on a single environment and habitat, the idea of how to measure "progress" is skewed by the perspective of the observer. From a plant's perspective, the best measure of progress might be photosynthetic ability; from a spider's it might be the efficiency of a venom delivery system; from a human's, cognitive ability. It is tempting to see evolution as a grand progressive ladder with Homo sapiens emerging at the top. But evolution produces a tree, not a ladder — and we are just one of many twigs on the tree.

MISCONCEPTION: Individual organisms can evolve during a single lifespan.

CORRECTION: Evolutionary change is based on changes in the genetic makeup of populations over time. Populations, not individual organisms, evolve. Changes in an individual over the course of its lifetime may be developmental (e.g., a male bird growing more colorful plumage as it reaches sexual maturity) or may be caused by how the environment affects an organism (e.g., a bird losing feathers because it is infected with many parasites); however, these shifts are not caused by changes in its genes. While it would be handy if there were a way for environmental changes to cause adaptive changes in our genes — who wouldn't want a gene for malaria resistance to come along with a vacation to Mozambique? — evolution just doesn't work that way. New gene variants (i.e., alleles) are produced by random mutation, and over the course of many generations, natural selection may favor advantageous variants, causing them to become more common in the population.

MISCONCEPTION: Evolution only occurs slowly and gradually.

CORRECTION: Evolution occurs slowly and gradually, but it can also occur rapidly. We have many examples of slow and steady evolution — for example, the gradual evolution of whales from their land-dwelling, mammalian ancestors, as documented in the fossil record. But we also know of many cases in which evolution has occurred rapidly. For example, we have a detailed fossil record showing how some species of single-celled organism, called foraminiferans, evolved new body shapes in the blink of a geological eye, as shown below.

Source:
(http://evolution.berkeley.edu/evolibrary/misconceptions_faq.php#a1)

#science #change #evolutionarybiology #human  
#evolution #adaptation #fossilrecord #migration  
#biology #changeoevertime #advantageous #traits  
#misconceptions #naturalselection #genetics #chromosomes #dna #rna #survival #beneficial
#corrections #climatechange #randommutation  
#evolve #disease #mammalianancestors  
#ancestors #sexualmaturity #adaptivechange  
#genes #photosynthesis #homosapien  
#organisms #pathogens #homosapienevolution  
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Researchers in France are developing the DNA inspired data storage technology that Prof. George Church used to store millions of book copies in a single drop of liquid
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Senate Republicans prove once again that they have no interest in actually governing.
Mitch McConnell is blocking dozens of President Obama's judicial appointments in an attempt to rig the courts.
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The long-term problems at Fox News were exposed as CNN beat Fox News among the key age 25-54 demo for four straight days last week.
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Misconceptions About Evolution and Their Corrections

MISCONCEPTION: Evolution is a theory about the origin of life.

CORRECTION: Evolutionary theory does encompass ideas and evidence regarding life's origins (e.g., whether or not it happened near a deep-sea vent, which organic molecules came first, etc.), but this is not the central focus of evolutionary theory. Most of evolutionary biology deals with how life changed after its origin. Regardless of how life started, afterwards it branched and diversified, and most studies of evolution are focused on those processes.

MISCONCEPTION: Evolutionary theory implies that life evolved (and continues to evolve) randomly, or by chance.

CORRECTION: Chance and randomness do factor into evolution and the history of life in many different ways; however, some important mechanisms of evolution are non-random and these make the overall process non-random. For example, consider the process of natural selection, which results in adaptations — features of organisms that appear to suit the environment in which the organisms live (e.g., the fit between a flower and its pollinator, the coordinated response of the immune system to pathogens, and the ability of bats to echolocate). Such amazing adaptations clearly did not come about "by chance." They evolved via a combination of random and non-random processes. The process of mutation, which generates genetic variation, is random, but selection is non-random. Selection favored variants that were better able to survive and reproduce (e.g., to be pollinated, to fend off pathogens, or to navigate in the dark). Over many generations of random mutation and non-random selection, complex adaptations evolved. To say that evolution happens "by chance" ignores half of the picture. To learn more about the process of natural selection, visit our article on this topic. To learn more about random mutation, visit our article on DNA and mutations.

MISCONCEPTION: Evolution results in progress; organisms are always getting better through evolution.

CORRECTION: One important mechanism of evolution, natural selection, does result in the evolution of improved abilities to survive and reproduce; however, this does not mean that evolution is progressive — for several reasons. First, as described in a misconception below (link to "Natural selection produces organisms perfectly suited to their environments"), natural selection does not produce organisms perfectly suited to their environments. It often allows the survival of individuals with a range of traits — individuals that are "good enough" to survive. Hence, evolutionary change is not always necessary for species to persist. Many taxa (like some mosses, fungi, sharks, opossums, and crayfish) have changed little physically over great expanses of time. Second, there are other mechanisms of evolution that don't cause adaptive change. Mutation, migration, and genetic drift may cause populations to evolve in ways that are actually harmful overall or make them less suitable for their environments. For example, the Afrikaner population of South Africa has an unusually high frequency of the gene responsible for Huntington's disease because the gene version drifted to high frequency as the population grew from a small starting population. Finally, the whole idea of "progress" doesn't make sense when it comes to evolution. Climates change, rivers shift course, new competitors invade — and an organism with traits that are beneficial in one situation may be poorly equipped for survival when the environment changes. And even if we focus on a single environment and habitat, the idea of how to measure "progress" is skewed by the perspective of the observer. From a plant's perspective, the best measure of progress might be photosynthetic ability; from a spider's it might be the efficiency of a venom delivery system; from a human's, cognitive ability. It is tempting to see evolution as a grand progressive ladder with Homo sapiens emerging at the top. But evolution produces a tree, not a ladder — and we are just one of many twigs on the tree.

MISCONCEPTION: Individual organisms can evolve during a single lifespan.

CORRECTION: Evolutionary change is based on changes in the genetic makeup of populations over time. Populations, not individual organisms, evolve. Changes in an individual over the course of its lifetime may be developmental (e.g., a male bird growing more colorful plumage as it reaches sexual maturity) or may be caused by how the environment affects an organism (e.g., a bird losing feathers because it is infected with many parasites); however, these shifts are not caused by changes in its genes. While it would be handy if there were a way for environmental changes to cause adaptive changes in our genes — who wouldn't want a gene for malaria resistance to come along with a vacation to Mozambique? — evolution just doesn't work that way. New gene variants (i.e., alleles) are produced by random mutation, and over the course of many generations, natural selection may favor advantageous variants, causing them to become more common in the population.

MISCONCEPTION: Evolution only occurs slowly and gradually.

CORRECTION: Evolution occurs slowly and gradually, but it can also occur rapidly. We have many examples of slow and steady evolution — for example, the gradual evolution of whales from their land-dwelling, mammalian ancestors, as documented in the fossil record. But we also know of many cases in which evolution has occurred rapidly. For example, we have a detailed fossil record showing how some species of single-celled organism, called foraminiferans, evolved new body shapes in the blink of a geological eye, as shown below.

Source:
(http://evolution.berkeley.edu/evolibrary/misconceptions_faq.php#a1)

#science #change #evolutionarybiology #human  
#evolution #adaptation #fossilrecord #migration  
#biology #changeoevertime #advantageous #traits  
#misconceptions #naturalselection #genetics #chromosomes #dna #rna #survival #beneficial
#corrections #climatechange #randommutation  
#evolve #disease #mammalianancestors  
#ancestors #sexualmaturity #adaptivechange  
#genes #photosynthesis #homosapien  
#organisms #pathogens #homosapienevolution  
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"The Confederate flag should come down because it is embarrassing to all Americans"

Coates tracks the history of what Confederate sympathizers have said the Civil War was about. Until the 50s, the defenders themselves said that it was about white supremacy. Then all of a sudden it became about heritage. And even now, the flag isn't coming down because it's racist, it's about how it's impolite to show this to people who "may have been" hurt.

This mythology of manners is adopted in lieu of the mythology of the Lost Cause. But it still has the great drawback of being rooted in a lie. The Confederate flag should not come down because it is offensive to African Americans. The Confederate flag should come down because it is embarrassing to all Americans. The embarrassment is not limited to the flag, itself. The fact that it still flies, that one must debate its meaning in 2015, reflects an incredible ignorance. A century and a half after Lincoln was killed, after 750,000 of our ancestors died, Americans still aren’t quite sure why.
The meaning of the Confederate flag is best discerned in the words of those who bore it.
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Collections Shannon is following
Education
  • Ashford University
    Organizational Management
  • Project Management Institute
    Project Management Professional
  • Community College of the Air Force
    Electronic Systems Technology
  • Judson Senior High School
    1989
Basic Information
Gender
Male
Story
Tagline
Prince Hall F. & A. M.
Bragging rights
I have a beautiful wife and son.
Work
Occupation
Project Manager
Skills
Stuff
Employment
  • Aristocrat Technologies, Inc.
    Project Manager, 2006 - present
  • Department of the Air Force
    Special Instrumentation and Telemetry, 2002 - 2006
  • United States Air Force Reserves
    Public Health, 2002 - 2006
  • United States Air Force
    Precision Measurement Equipment Laboratory / Instrumentation and Telemetry, 1992 - 2002
Places
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
Las Vegas, NV
Previously
San Antonio, TX - Lancaster, CA - Rosamond, CA - Edwards Air Force Base, CA - Biloxi, MS - Huetschenhausen, Germany - Kaiserslautern, Germany - Ramstein Air Base, Germany - Lowry Air Force Base CO - San Antonio, TX - Naples, Italy - Denver, CO - San Antonio, TX - Little Rock Air Force Base, AR
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Shannon Piper's +1's are the things they like, agree with, or want to recommend.
Ants show left bias when exploring new spaces
phys.org

Unlike Derek Zoolander, ants don't have any difficulty turning left. New research from the University of Bristol, UK published today in Biol

News Anchor Completely Loses It For The Best Possible Reason - Must See!
www.whydontyoutrythis.com

You'd call this guy crazy if he weren't brilliant, concise and 100% right-on-the-money.

'An Amazing Display Of Actually Saying Stuff'
www.huffingtonpost.com

On Thursday night's "Daily Show," Jon Stewart had a lot of new DNC material to work with, and for once he was pretty satisfied with what he

The Federal Bailout That Saved Mitt Romney | Politics News | Rolling Stone
www.rollingstone.com

Government documents prove the candidate's mythology is just that

A thank you note for Todd Akin
feministing.com

I'm a pretty even-keeled kind of gal. I don't lose my temper that easily. I'll get irritated, sure, and sometimes that irritation will get v

Google Fiber: Here's what you need to know
gigaom.com

Google Fiber just launched today to offer faster access to consumers with a TV product, a terabyte of free storage in G Drive and more. The

Andrew Sullivan: How Obama's Long Game Will Outsmart His Critics
www.thedailybeast.com

Andrew Sullivan on how the president may just end up outsmarting them all.