• 12Feb
    Categories: car monitor video Comments Off

    There are gender differences in learning styles specific to science, math, engineering and technology (STEM) that teachers of these subjects should keep in mind when developing lesson plans and teaching in the classroom. First, overall, girls have much less experience in the hands-on application of learning principles in lab settings than boys. This could occur in the computer lab, the science lab, or the auto lab – the principle is the same for all of these settings – it requires an overall technology problem-solving schema, accompanied by use and manipulation of tools, and spatial relation skills that very few girls bring with them to the classroom on day one in comparison to boys.

    Let’s look at some of the reasons why girls come to the STEM classroom with less of the core skills needed for success in this subject area. Overall, girls and boys play with different kinds of games in early childhood that provide different types of learning experiences. Most girls play games that emphasize relationships (i.e., playing house, playing with dolls) or creativity (i.e., drawing, painting). In contrast, boys play computer and video games or games that emphasize building (i.e., LEGO®), both of which develop problem-solving, spatial-relationship and hands-on skills.

    A study of gender differences in spatial relations skills of engineering students in the U.S. and Brazil found that there was a large disparity between the skills of female and male students. These studies attributed female student’s lesser skills set to two statistically significant factors: 1) less experience playing with building toys and 2) having taken less drafting courses prior to the engineering program. Spatial relations skills are critical to engineering. A gender study of computer science majors at Carnegie-Mellon University (one of the preeminent computer science programs in the country) found that, overall, male students come equipped with much better computer skills than female students. This equips male students with a considerable advantage in the classroom and could impact the confidence of female students.

    Are these gender differences nature or nurture? There is considerable evidence that they are nurture. Studies show that most leading computer and video games appeal to male interests and have predominantly male characters and themes, thus it is not surprising that girls are much less interested in playing them. A study of computer games by Children Now found that 17% of the games have female characters and of these, 50% are either props, they tend to faint, have high-pitched voices, and are highly sexualized.

    There are a number of studies that suggest that when girls and women are provided with the building blocks they need to succeed in STEM they will do as well if not better than their male counterparts. An Introductory Engineering Robotics class found that while males did somewhat better on the pre-test than females, females did as well as the males on the post-test following the class’s completion.

    Another critical area of gender difference that teachers of STEM should keep in mind has less to do with actual skills and experience and more to do with perceptions and confidence. For females, confidence is a predictor of success in the STEM classroom. They are much less likely to retain interest if they feel they are incapable of mastering the material. Unfortunately, two factors work against female confidence level: 1) most girls will actually have less experience with STEM course content than their male counterparts and 2) males tend to overplay their accomplishments while females minimize their own. A study done of Carnegie Mellon Computer Science PhD students found that even when male and female students were doing equally well grade wise, female students reported feeling less comfortable. Fifty-three percent of males rated themselves as “highly prepared” in contrast to 0% of females.

    It is important to note that many of the learning style differences described above are not strictly gender-based. They are instead based on differences of students with a background in STEM, problem-solving, and hands-on skills learned from childhood play and life experience and those who haven’t had the same type of exposure. A review of the literature on minority students and STEM finds that students of color are less likely to have the STEM background experiences and thus are missing many of the same STEM building blocks as girls and have the same lack of confidence. Many of the STEM curriculum and pedagogy solutions that work for female students will also work for students of color for this reason.

    Bridge Classes/Modules to Ensure Core Skills

    Teachers will likely see a gap in the core STEM skills of female and minority students for the reasons described above. Below are some solutions applied elsewhere to ensure that girls and women (and students of color) will get the building block STEM skills that many will be missing.

    Teachers in the Cisco Academy Gender Initiative study assessed the skill levels of each of their students and then provided them with individualized lesson plans to ensure their success that ran parallel to the class assignments. Other teachers taught key skills not included in the curriculum at the beginning of the course, such as calculating math integers and tool identification and use. Students were provided with additional lab time, staffed by a female teaching assistant, knowing that the female students would disproportionately benefit from additional hands-on experience.

    Carnegie-Mellon University came to view their curriculum as a continuum, with students entering at different points based on their background and experience. Carnegie-Mellon’s new frame of a “continuum” is purposefully different than the traditional negative model in which classes start with a high bar that necessitates “remedial” tutoring for students with less experience, stigmatizing them and undermining their confidence. Below is a list of ideas and suggestions that will help ALL students to succeed in the STEM classroom.

    1. Building Confidence

    How do teachers build confidence in female students who often have less experience than their male counterparts and perceive they are behind even when they are not?

    1) Practice-based experience and research has shown that ensuring female students have the opportunity to gain experience with STEM, in a supportive environment, will increase their confidence level.

    2) Bringing in female role models that have been successful in the STEM field is another important parallel strategy that should be used to assist your female students in seeing themselves as capable of mastering STEM classes: if she could do it, then I can too!

    3) Consistent positive reinforcement by STEM teachers of their female students, with a positive expectation of outcome, will assist them in hanging in there during those difficult beginning weeks when they have not yet developed a technology schema or hands-on proficiency and everything they undertake seems like a huge challenge.

    2. Appealing to Female Interests

    Many of the typical STEM activities for the classroom appeal to male interests and turn off girls. For example, curriculum in robots often involves monsters that explode or cars that go fast. “Roboeducators” observed that robots involved in performance art or are characterized as animals are more appealing to girls. Engineering activities can be about how a hair dryer works or designing a playground for those with disabilities as well as about building bridges. Teachers should consider using all types of examples when they are teaching and incorporating activities in efforts to appeal female and male interests. Teachers can also direct students to come up with their own projects as a way of ensuring girls can work in an area of significance to them.

    Research also shows that there are Mars/Venus differences between the genders and how each engages in technology. Overall, girls and women are excited by how the technology will be used – its application and context. Men will discuss how big the hard drive or engine is, how fast the processor runs, and debate the merits of one motherboard or engine versus another. These are topics that are, overall, of less interest to most females.

    The Carnegie-Mellon Study took into account the differences of what engages female students and modified the Computer Science programs’ curriculum so that the context for the program was taught much earlier on in the semester and moved some of the more technical aspects of the curriculum (such as coding) to later in the semester. Authors observed that the female students were much more positive about getting through the tedious coding classes when they understood the purpose of it. Teachers should ensure that the context for the technology they are teaching is addressed early on in the semester by using real world stories and case studies to capture the interest of all of their students.

    3. Group Dynamics in the Classroom

    Research studies by American Association of University Women and Children Now have found that most females prefer collaboration and not competition in the classroom. Conversely, most males greatly enjoy competition as a method of learning and play. Many hands-on activities in technology classes are set up as competitions. Robotics for example, regularly uses competitiveness as a methodology of teaching. Teachers should

    be cognizant of the preference of many girls for collaborative work and should add-in these types of exercises to their classes. Some ways to do this are by having students work in assigned pairs or teams and having a team grade as well as an individual grade. (See Reading 2 on Cooperative Learning.)

    Another Mars/Venus dynamic that STEM teachers should be aware of occurs in the lab there male students will usually dominate the equipment and females will take notes or simply watch. Overall, male students have more experience and thus confidence with hands-on lab equipment than their female counterparts. Teachers should create situations to ensure that their female students are spending an equal amount of time in hands-on activities. Some approaches have been: 1) to pair the female students only with each other during labs in the beginning of the class semester so that they get the hands-on time and their confidence increases, putting them in a better position to work effectively with the male students later on, 2) allot a specific time for each student in pair to use the lab equipment and announce when it’s time to switch and monitor this, and 3) provide feedback to male students who are taking over by letting them know that their partner needs to do the activity as well.

    4. Moving Female Students from Passive Learners to Proactive Problem Solvers

    The main skill in STEM is problem solving in hands-on lab situations. For reasons already discussed regarding a lack of experience, most girls don’t come to STEM classes with these problem-solving skills. Instead, girls often want to be shown how to do things, repeatedly, rather than experimenting in a lab setting to get to the answer. Adding to this issue, many girls fear that they will break the equipment. In contrast, male students will often jump in and manipulate the equipment before being given any instructions by their teacher. Teachers can address this by such activities as: 1) having them take apart old equipment and put it together again, 2) creating “scavenger hunt” exercises that force them to navigate through menus, and 3) emphasizing that they are learning the problem solving process and that this is equally important to learning the content of the lesson and insisting that they figure out hands-on exercises on their own.

    Research has also shown that females tend to engage in STEM activities in a rote, smaller picture way while males use higher order thinking skills to understand the bigger picture and the relationship between the parts. Again, moving female students (and the non-techsavvy student in general) to become problem solvers (versus just understanding the content piece of the STEM puzzle) will move them to use higher order thinking skills in STEM.

    Finally, many teachers have reported that many female students will often want to understand how everything relates to each other before they move into action in the lab or move through a lesson plan to complete a specific activity. The female students try to avoid making mistakes along the way and will not only want to read the documentation needed for the lesson, they will often want to read the entire manual before taking any action. In contrast, the male student often needs to be convinced to look at the documentation at all. Boys are not as concerned with making a mistake a long the way as long as what they do ultimately works. The disadvantage for female students is that they often are so worried about understanding the whole picture that they don’t move onto the hands-on activity or they don’t do it in a timely fashion, so that they are consistently the last ones in the class to finish. Teachers can assist female (and non-tech-savvy) students to move through class material more quickly by providing instruction on how to quickly scan for only the necessary information needed to complete an assignment.

    5. Role Models

    Since the numbers of women in STEM are still small, girls have very few opportunities to see female role models solving science, technology, engineering or math problems. Teachers should bring female role models into the classroom as guest speakers or teachers, or visit them on industry tours, to send the message to girls that they can succeed in the STEM classroom and careers.

    Bibliography

    Medina, Afonso, Celso, Helena B.P. Gerson, and Sheryl A. Sorby. “Identifying Gender Differences in the 3-D Visualization Skills of Engineering Students in Brazil and in the United States”. International Network for Engineering Eucation and Research page. 2 August 2004: [http://www.ineer.org/Events/ICEE/papers/193.pdf].

    Milto, Elissa, Chris Rogers, and Merredith Portsmore. “Gender Differences in Confidence Levels, Group Interactions, and Feelings about Competition in an Introductory Robotics Course”. American Society for Engineering Education page. 8 July 2004: [http://fie.engrng.pitt.edu/fie2002/papers/1597.pdf].

    “Fair Play: Violence, Gender and Race in Video Games 2001”. Children Now page. 19 August 2004: [http://www.childrennow.org/media/video-games/2001/].

    “Girls and Gaming: Gender and Video Game Marketing, 2000”. Children Now page. 17 June 2004: [http://www.childrennow.org/media/medianow/mnwinter2001.html].

    Tech-Savvy: Educating Girls in the New Computer Age. District of Columbia: American Association of University Women Educational Foundation, 2000.

    Margolis, Jane and Allan Fisher. Unlocking the Computer Clubhouse: Women in Computer. Cambridge, MA: The MIT Press, 2003.

    Taglia, Dan and Kenneth Berry. “Girls in Robotics”. Online Posting. 16 September 2004: http://groups.yahoo.com/group/roboeducators/.

    “Cisco Gender Initiative”. Cisco Learning Institute. 30 July 2004: [http://gender.ciscolearning.org/Strategies/Strategies_by_Type/Index.html].

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  • 11Feb
    Categories: car monitor video Comments Off

    www.facebook.com al-eds.com BYPASS AT YOUR OWN RISK! FOR PASSENGER VIEWING ONLY! Joe at Al & Ed’s Autosound in Marina Del Rey, Ca has figured out the bypass for the new Pioneer AVIC-x930BT navigation and bluetooth unit. All you have to do is move the mute pin up one. Be careful not to break the pin or the plug. Use a pick to release the locks and slowly pry out the pin and move it up. Ground that and parking brake wire. Thats it! It lets you watch video and input navigation information while youre driving.

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  • 08Feb
    Categories: car monitor video Comments Off

    Step-by-step video showing how to remove and replace the LCD screen on an iPhone 3G for under $50. 6:30 running time. The well-known video from PDAParts.com does not show all steps for the LCD, and they don’t show the suction cup method to remove the glass. This one shows how to completely remove and replace a new LCD, including steps I could not find shown elsewhere. This is for the LCD only, not the digitizer or the glass. Parts were ordered on Amazon. $35 for the LCD and $6 for the toolkit. This video highlights the LCD repair, and does not show the details of taking the phone apart. Since there are plenty of videos that show how to disassemble/reassemble the phone, we focus only on the LCD.

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  • 01Feb
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    Vomiting in dogs is a very common occurrence and can arise from a wide variety of causes, from simple gastritis to complex diseases of other body systems. Not only is it very distressing for both the dog and owner, it also provides a challenge for the veterinarian. This article explains the multiple causes of vomiting in dogs, including adverse food reactions, and the range of treatment options available.

    What is vomiting?

    Vomiting is the expulsion of food, fluid or debris from the stomach or small intestine due to coordinated movements of the gastrointestinal, musculoskeletal and nervous systems. It is important to differentiate this from regurgitation, which is a passive process rather than a coordinated effort like vomiting.

    Regurgitation is a sign of disease in the esophagus, such as obstructions (foreign bodies such as a stick, bone or toy, or a stricture), esophagitis (inflammation of the esophagus) or megaesophagus (dilatation of the esophagus due to weakening of the smooth muscle). The main difference between regurgitation and vomiting is that regurgitation is effortless, while vomiting is accompanied by strong abdominal contractions.

    How can I tell vomiting and regurgitation apart?

    Sometimes this is not easy to do. Generally speaking, if it happens immediately after eating it is more likely to be regurgitation (though vomiting can still occur then). If the content of the material expelled appears to be completely undigested food, this also supports regurgitation. If the presence of bile can be confirmed though, it is more likely to be vomiting.

    Causes of vomiting

    The most common causes of vomiting are dietary related, either through dietary indiscretion (e.g. overeating, eating overly rich or spoiled food) which causes acute (sudden) vomiting, or adverse food reactions (food allergies) which can cause chronic (long term and intermittent) vomiting.

    However, there are a huge number of other causes arising from either the gastrointestinal system itself (stomach and small intestine) or secondary to disease elsewhere in the body (e.g. liver or kidney disease). Within the stomach, possible causes include:

    1. Gastritis (inflammatory disease)

    2. Stomach ulceration

    3. Stomach cancer

    4. Obstruction (foreign bodies, telescoping of intestine)

    5. Hiatal hernia (part stomach herniating through the diaphragm)

    Possible causes within the intestine include:

    1. Infectious diseases (e.g. parvovirus)

    2. Worms

    3. Inflammatory bowel disease

    4. Intestinal cancer

    Secondary causes of vomiting that are due to disease elsewhere in the body include:

    1. Pancreatitis (infection or inflammation of the pancreas)

    2. Peritonitis (infection in the abdominal cavity)

    3. Hepatitis (liver inflammation)

    4. Kidney failure

    5. Pyometra (infection of the uterus)

    6. Hormonal deficiencies or excesses (e.g. Addisons disease, Diabetes Mellitus, Septicemia, Calcium imbalance)

    Other potential causes that do not fit into the above categories are drug reactions (e.g. digoxin, chemotherapy drugs, NSAIDs) and neurological disorders.

    Treatment of vomiting

    Vomiting is a symptom, not a disease in itself. Whether or not treatment is appropriate depends upon the individual circumstances. If the dog is only vomiting occasionally, is bright and otherwise normal on examination, treatment is probably not necessary. Some dogs with sensitive digestive systems will vomit once or twice a month regardless of any treatment, and if they are otherwise well this should be ignored.

    For acute vomiting cases, the first step should always be to starve the dog for 24 hours (while keeping plenty of water available ad lib). After the period of starvation, the dog should be offered small portions of a very bland food, such as chicken and boiled rice, for a few days. Meals should be fed as smaller portions several times a day, rather than one larger meal.

    Though treating the symptom itself will often improve patient demeanor and comfort, it is no replacement for making a correct diagnosis of the underlying cause, and certain drugs can be harmful if given blindly (for example, giving metoclopromide to a dog with a gastric or intestinal obstruction). Certainly cases of acute and severe vomiting require immediate treatment, as dogs can become rapidly dehydrated, develop electrolyte imbalances and aspiration pneumonia otherwise.

    Managing the vomiting dog

    There are 2 goals when dealing with a vomiting dog:

    1. Identify the underlying cause

    2. Stop the vomiting in a safe and effective manner

    In many cases, anti emetic therapy (the technical term for vomiting is emesis, and therefore drugs used to treat it are called anti emetics) is instigated immediately while the cause is being established.

    A veterinarian will start by taking a full history, focusing especially on normal diet, recent medication, vaccination status and the description of the symptoms. He or she must first make sure that the dog is genuinely vomiting and not regurgitating, which has a completely different set of underlying causes. It is also important to get a graphic description of the material expelled, and whether it contained bile, fresh blood or what appears to be coffee granules (partly digested blood).

    The next step is a full clinical examination, including carefully feeling the abdomen, taking the dogs rectal temperature and assessing the hydration status. Once this is completed, a veterinarian will have a slightly narrowed down list of differential diagnoses in mind. If the dog is not dehydrated, bright in demeanor, and both vital parameters and feeling the abdomen were normal, the veterinarian will often (and rightly so) make a presumptive diagnosis of gastritis, or gastroenteritis if diarrhea is present too, and prescribe antibiotics to combat the likely bacterial infection. The owner is then likely to be sent home with instructions to starve the dog for 24hrs and give bland food for a few days, alongside the antibiotics. The owner is instructed to monitor the dog closely, and return immediately if there are any signs of deterioration, or 2 to 3 days later for a routine check up.

    If there are any findings in the clinical history or the physical examination that trigger concern, then further tests are necessary. The first of these is usually blood tests for hematology and biochemistry profiles. Urine and feces may also be analysed, the latter for either nasty bacteria or parasites. Additional laboratory tests may be required in certain circumstances, such as bile acid stimulation testing if liver dysfunction is suspected, or an ACTH stimulation test to look for adrenal disease.

    The next stage of the work up involves imaging. The most useful is abdominal radiography (xrays), but ultrasonography and endoscopy can also be very important. Radiography and endoscopy both have to be carried out under general anesthesia, while ultrasonography can be performed conscious. If the imaging does not reveal the underlying cause then biopsies may be taken, either endoscopically guided or via exploratory surgery. Histopathology of these samples (studying the tissue microscopically) can give vital clues as to the cause, particularly by differentiating between inflammation and cancer.

    The final diagnostic option is the therapeutic trial. If the dog gets better on the medication prescribed, then it must have been a certain type of disease that responds to that drug. By this rationale, wormers, antibiotics or an exclusion diet trial may be chosen.

    Drugs used in the treatment of vomiting

    1. Stomach protectants and antacids

    These medications are useful when stomach ulceration is suspected. Examples include sucralfate (acts like a band aid over the ulcer), H2 antagonists (reduce acid production) and omeprazole (also reduces acidity).

    2. Metoclopromide

    This drug blocks a neurotransmitter in the brain called dopamine, which prevents activation of the vomiting centre in the brain (known as the Chemoreceptor Trigger Zone). It is only partially effective in doing this though, and has the additional effect of increasing forward motility of the gut. This means it must never be given to dogs that might have a stomach or intestinal obstruction. It can also cause mental changes such as hyperactivity and disorientation.

    3. Phenothiazines (e.g. Acepromazine, ACP)

    These are effective at blocking the dopamine receptors mentioned above, in addition to other receptors involved in the vomiting reflex. They are usually used when metoclopromide has failed, but also have undesirable side effects such as low blood pressure and sedation.

    4. Antihistamines

    Histamine receptors are also present in the Chemoreceptor Trigger Zone, the part of the brain that controls the vomiting reflex. Antihistamines are effective in blocking vomiting that is due to motion sickness, but are little use against other causes.

    5. Domperidone

    Domperidone has a similar action to metoclopromide in that it blocks dopamine receptors and secondarily blocks serotonin receptors, but it does not have the promotility effects of metoclopromide. However, side effects include vulval enlargement and possible effects on fertility.

    6. Maropitant

    This is a new drug that is a Neurokinin 1 (NK1) receptor antagonist. It can be given orally or by injection, and is extremely effective at stopping vomiting by working both on the vomiting centre in the brain and on the stomach itself. It is deemed so effective at stopping vomiting that veterinarians must be careful to properly investigate potentially dangerous underlying causes, that could be masked fatally by this drug.

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  • 21Jan
    Categories: car monitor video Comments Off

    This is a project I’m working on and looking to find people interested in helping helping turn this into reality. The basic idea is to simulate windows in a house such that the viewed scene is indistiguishable from reality. The project involves realtime head tracking, high resolution digital camera video compositing, editing, multi-projector & multi computer displays. Contact me at jonathanclark.com

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  • 15Jan
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    Day 220 August 08, 2011 — ApprenticeA Productions — CAST: Jim Vaylin www.youtube.com www.twitter.com Corrado Coia www.youtube.com www.twitter.com Ethan Wane: www.youtube.com www.twitter.com Executive Producer – Corey Vidal www.youtube.com www.twitter.com —

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  • 12Jan
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    Child safety screens for your wood stove and fireplace. Child guard screens offer hearth protection for your child’s safety around the hot wood burning stove. The intense hot heat

    from fireplaces and wood burning stoves are no place for a child to play. Accidents happen and a child safety screen is designed to detour children from serious burns. Most child guard screens are light weight allowing them to be easily removed when tending a fire. Wood stove screens will offer protection from a child falling into the fireplace yet they are light enough that they will not harm a child if the screen should fall on them. It will scare the child more than it will hurt them. Wood stove child guard safety screen. This is the typical lightweight mesh screen designed for your child’s safety.

    Most of the time your child will feel the hot heat and turn away but

    accidents do happen and you can never be too safe. The mesh screen is projected out a few inches from the hot stove therefore it will be much cooler than the stove. The wood stove

    screen features a center brace across the top to stabilize the screen. The screen is light enough to be removed when tending your wood burning stove yet rigid enough to prevent your child from falling into the hot stove. The child safety screen will also detour flying balls and toys.

    Keep your child safe. KidCo makes a child safety screen for wood stoves. This screen protects your child with vertical bars and no mesh. This screen comes with mounting hardware so it can be attached to the wall at either end. The KidCo wood stove screen comes with 5 – 24″ panels that can be configured to wrap around any stove. Additional panels in 8″ and 24″ sizes can be ordered separately if needed. The center panel features a gate that can be opened

    when tending the wood stove. This child guard screen offers the most protection for your child.

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