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Although all companions are considered unique, icist dragons are exceedingly interesting. They cannot exist except in the coldest of environments, and they eat only snow and icicles. They eat so much that the ground would be bare, except for the storms other ice creatures summon. It is odd that icists do not control the weather strongly, when it is necessary for their existence. They must rely heavily on the spelled caverns below ground, and the company of ice gyphons and phoenixes. In the warmer months some of these beasts choose to remain at the castle, far below the castle, while some decide to travel north. These icists are escourted to the Arkene by whichever ice companions are traveling there as well. Nyiara, a magi who has deep affection for these animals, often undertakes the journey herself, ensuring that these icists make it there safely. If left in a warm place for too long, icists quickly get ill, almost melting and becoming listless. If this ever occurs, the creature must quickly be brought to cold location and surrounded in blocks of ice. Even if rescued immediately, the icist will be listless for a while. It is unfortunate that the usual cooling spells never seem to work on these creatures, almost as though another spell is already in place, blocking any magic. Despite the many mysteries surrounding them, there is no question that they are worthy creatures to be called companions, with their powers.
Egg
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This strange egg is perfectly round and incredibly cold.
Hatchling
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All hatchlings are curious little things, and icists are no exceptions. They take great care to explore every nook and cranny that The Keep possesses, and can be found in the strangest of place: fast asleep in a bathtub, or curled up in a cauldron. When they are first born, they sleep most of the time, which can be very irritating. This is because their coloring perfectly matches the snow, and a human companion can spend hours searching for a hatchling only to find it has fallen asleep in a snowbank. They become more active as they age, and thus easier to find. The growth of horns can give away their locations as well. They use these sharp horns against each other for fun, ramming nearby trees and their playmates. They socialize well with other ice creatures, and love to explore down by the frozen lake, where they will sometimes find an octopus to play with. These hatchlings have no qualms about water, but will break the sheet of ice covering the lake and slip in, reveling in the frigid water. When the day comes to a close, icist hatchlings make their way back to the large caves, where they will spend the night asleep.
Adult
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Horns emerge from icists as they age, setting them apart from most draconians and wyrms. No one is quite certain if these creatures are entirely dragons, but it is what they resemble the most. Some categorize them as wyrms, but they are nowhere near as badly tempered as most wyrms, being far more amiable companions. Although they they lack the wings of a dragon, and are not able to fly, icists are extremely agile. Their long, curled tails serve almost as extra limbs, and they often use it to hold an icicycle while they munch on it. They seem to draw strength from anything cold, and even a grown icist will take a moment to submerge themselves in snow, playing. Only a sharp pair of antlers and a bright blue gem alerts you to their presence. The beautiful blue jewel on their heads seems to be made from ice, as it is cold to the touch. As with most creatures who boast such a beautiful gem, the stone possesses magical powers, in this case the much coveted ability to mimic other powers. Such an amazing power comes with its own drawbacks, of course: though able to copy other's magics, icists can only do so less strongly. For instance, they may use another's companions skills, like the ability to call rain down, but the rain will only be a drizzle, not a full storm. This is an incredible magic, but it did not save them when their old home began to grow warmer and endanger them.
Additional Information
 - No. 173
 - Obtained from An Anonymous Note quest
 - Released: December 7, 2010
 - Artist: GlassWalker
 - Breeding:
 - Icist Icist Icist
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Holly Pester is a poet and multidisciplinary writer working through archives and written histories, with gossip, radical tales and dream logic. Pester has featured in readings, performances and sound installations at Segue, New York, dOCUMENTA 13, the Serpentine Poetry Marathon. Her book, go to reception and ask for Sara in red felt tip is a collection of archive fan-fiction (Book Works 2015) and her album, Common Rest (Test Centre 2016) is a collection of collaborative lullabies and sound poems. She is lecturer in Poetry and Performance at University of Essex.
shown here are ideas, interests – and on the outside are ways of engaging with them. Plays with the unfixed order of work – not simply idea, making, and final piece – these are completely interchangeable.
hannah weiner, an inspirational artist. weiner had schizophrenia and she would hallucinate, seeing words everywhere – she calls her work clairevoyance, she claimed her mental illness as part of her work, used what she was as part of it.
"THe fast" was a book of hers, she made it by locking herself in her apartment and starving herself – this coupled with her mental illness made her hallucinate wildly and go insane – Pester says, "I found myself completely agreeing with her."
Hallucination as a mode of art – Pester has bouts of hypnagogia, the boundary between waking and sleep, where sleep paralysis, lucid dreaming and other mental phenomena occur. the artist uses this as a new, different way of thinking/using the brain.
A piece of work installed in a telephone box outside the royal academy. she says, "i like to tell people i've exhibited in the royal academy, albeit in this parasitic way"
a storage tank of reserved otherness – telephone box
she played a sound piece which was a chaotic, incoherent poem
"Go to reception and ask for Sara in red felt tip" is one of Pester's publications.
"Brush" is an experimental sound piece. It was described as a lullaby by the artist, although it sounds nothing like a traditional lullaby – there are no words, little in the way of rhythm, and consists of mostly white noise.
It was made collaboratively; the artists sat in one room, brushing their hair and singing softly into a microphone. Their sound engineer took snippets of the recordings, put several effects on them and put together the piece, resulting in about 3 minutes of haunting, yet strangely beautiful noise. In fact you could probably drift off to it, hence being described as a lullaby.
To finish off her talk, Pester did a close reading of her poem "aborted":
"like history this sliced-up worm carries on in both directions
I know thee, I have found thee, & I will not let thee go
They dug and buried
arrests were made
giving birth by a hedgerow I ask the hedgerow what it feels
like to be broken into
It was verses we should've sung
bring back my
I doubled up
Is there a dead bird in you?
You're a strike-through line
dived over your sitter to the next incur
Ask me. Do I end here. I fall. I drink a foot. I ask the wall,
What plot did you sneak
to improve the noun for staff?
to slur a rebel's speech
livers split out pours solution

source: m-a-p/FineFineWeb


text:
So, you went to space and left the door open?
As discussed in my last post, this table is a "missing sidebar" describing what happens to things on spaceships after they are exposed to a hard vacuum. This was fun to research and I definitely found some surprising things.
Note that even though this is for a futuristic campaign (the Deeps of Lyrae setting) obviously I was not able to research the effects of vacuum on futuristic technology (e.g., that found in GURPS Ultra Tech). But I think you can extrapolate from here. Some discussion of the plausibility of all this is in my last post.
This table was written for the Deeps of Lyrae setting. That's TL 11^ and has artificial gravity and routine space travel (as it is a Traveller variant). That is important to understand some of the items below.
Foreshadowing: I saved the most interesting thing for last. It is very cool.
Hard Vacuum Effects
- If the vacuum can get to them, liquids instantly evaporate. e.g., in a glass of water effectively the water disappears.
- Thin plastic bottles containing soda, water, or cleaning supplies may explode, tear open, or remain intact. It is likely that thin plastic containers will deform in shape (getting larger).
- If the decompression was explosive, I'd expect refrigerators and freezers are thrown open, spewing their contents across the room.
- Thin plastic bags of food in Paper/Cardboard boxes, such as crackers and cereals: Explode.
- Food containing moisture is turned into a crumbly dust.
- You might think vacuum-packed items would be safe, but not. Since vacuum–packing does not actually remove all of the air from a package (just most of it), a vacuum-packed foil package of ground coffee will inflate, deform, and explode – spraying ground coffee around the room.
- Tupperware can pop open or slightly deform, or it may be unharmed.
- Surprisingly (to me): If they are not thrown out of a refrigerator (or off of a high shelf) and onto the floor because of the escaping air of decompression, eggs will survive hard vacuum with no trouble.
- Fresh food, especially fruits and vegetables, explodes and turn to dust. No more strawberries on the Serenity. 😦
- Things like plastic toothpaste tubes and shampoo bottles may survive unharmed. If the cap was left open (or cracked), their contents will not.
- Glass Containers:
- Some glass containers may be totally unaffected: Vacuum tubes used in early electronics and early light bulbs were glass chambers built to survive vacuum. Or picture a sturdy thick-walled jelly container with a clamp lid or a heavy glass canning jar… you will still have jam. But if there are flaws in the glass even a thick container may shatter.
- As an aside, this means I think the GURPS rule I mentioned in my last post–one of the few pieces of guidance about equipment and vacuum that we receive–is actually wrong. It states that a wine bottle would be destroyed but as long as the cork was solidly in there and the bottle was thick I think it would actually be fine.
- Metal Containers:
- A metal can of food (or soda or beer, for that matter) will likely be unaffected by vacuum. (In the longer term, the dehydration of glue may cause the label to fall off.)
- Living Creatures (other than humans):
- I realize living creatures are not usually "equipment," but this seems to go here. Maybe we are talking about trained bomb-sniffing service dogs.
- GURPS rules handles damage to human bodies, but what about other bodies? Almost all insects and animals will not survive vacuum (and die in a dreadful way), as per the GURPS rules for people.
- On the plus side, you might think hard vacuum will at least de-louse your ship, but there are a few exceptions. Most creatures have their bodily fluids sucked out, and their body then crumples inwards. But ticks, dragonfly nymphs, and dormant tardigrades can survive hard vacuum without problems. Whoa.
- Hydroponics or Farming Operations:
- …are destroyed. See The Martian.
- I think this has to be bad as I imagine there is some moisture in the fibers of clothing, but I can't find any sources that have addressed what happens to the contents of your dresser if your stateroom gets a hard vacuum. The Goddard Space Flight Center said in 1969 that "degradation occurs in an unpredictable manner" and that organic materials are the least likely to survive unharmed. So: people who dress in fashions from the 1970s would be better off? (More polyester?)
- If they work in the way present-day computers do, they will stop working in a few seconds when convection and conduction stop as they can no longer shed heat. The motherboard will detect that the temperature is too hot to safely operate and the computer will shut down. However, when air is returned they can be started again and could be undamaged. (But see wiring, below.)
- The insulation on wires. Couldn't find much on this. It will outgas but…? Does this matter? An open question.
- There is no way to remove heat from electrical wiring due to the loss of convection. This could be a serious problem.
- …will fail as they will either lose their lubricating properties, or they will outgas unwanted materials into machinery, or both.
- …will fail as they immediately dry up. Imagine all of the door numbers and signs falling off the wall. Well, if you still have gravity.
- Books and papers:
- If books and papers made from trees are still used in the future, that's a problem in vacuum. Even "dry" paper is up to 10% water. However I'm not sure what will happen to them. I know it will be bad.
- Mechanical Watches:
- Another surprising find for me. It's likely no problem. It was common for Apollo astronauts to wear an Omega watch on the outside of their spacesuit, during the moon walks, so that they could use the stopwatch feature to time activities
- Suction Cups:
- …fall off.
- Plastics (and the atmosphere):
- Significant offgassing from plastics can produce toxic compounds that are still present when air is restored, but air processing systems are likely to handle this problem anyway, as normal offgassing is already a problem in recycled air systems and filters will be in place.
- There still might be a problem with unusual ship cargos, however? What if you had an entire cargo hold full of plastic? Sounds bad.
- Small Electronic Devices (powered or unpowered)
- may work fine. e.g., A cellular phone will work in a hard vacuum.
- Electric Motors (if powered):
- Motors will short out or may operate for a short time, then break.
- They may operate briefly, then overheat because of the lack of cooling air and convection, causing a component to fail at a high temperature.
- They may short out because air insulates them against arcing and when the air is removed new electrical connections can be made.
- Their components may deform or release volatile gasses that interfere with the operation of equipment.
- (See also the last entry on this table for an additional hazard.)
- Electrical Equipment: (if powered)
- Old-fashioned fuses will blow at half their rated capacity because they cannot shed heat, but modern circuit breakers depend less on air circulation and are not subject to this problem.
- Some solders are not suitable for vacuum and so soldered connections will be broken.
- All circuits will operate at higher temperatures and unprotected circuits will overheat, but cannot catch fire because of the vacuum.
- Plastic components in electrical equipment such as casings and insulation may melt, producing a new configuration of wiring and potentially electrical arcs as noted above.
- In general, if vacuum is present but power is not switched off, the equipment could stop working because of one of the above three problems. Components damaged by vacuum will need to be replaced – the system will not just start working again when air is restored and power is switched back on.
- Water will boil out of the toilets, potentially spectacularly if combined with the moving air of an uncontrolled decompression. That should be fun.
- Aside from that, pipes should hold up well. The cement used to seal connections between plastic (e.g., PVC) pipes may eventually degrade, but if the pipes are mechanically sealed, even pressed tightly into each other, this will not be much of a problem and it may take a long time to manifest. If a ship is left in a hard vacuum for years and air is restored, the plumbing may have a few new leaks.
- You could specify that the reactor keeps working as it is engineered to withstand vacuum, or you could stay that it switches to "emergency standby" that keeps the core/plasma/antimatter/whatever safe, but doesn't do much else. If the reactor stays online and continues to power the whole ship you might run into other problems as specified above!
- Reactors are dangerous enough anyway that if used shipboard I expect they would be built with safety systems that shut down the reactor when atmospheric pressure is lost.
- Is it possible to keep running them? Not sure. The reactor core would already be sealed. But even though the core will be sealed, if the reactor isn't shut down the supporting equipment is electrical and will overheat. In general it is subject to the problems described above.
- Bloodthirsty GMs might be interested in what happens with a system like a fusion reactor where parts need to keep running —

source: openbmb/Ultra-FineWeb


Monday, December 11, 2017
Homophobia at American Library Association Again
Homophobia rears again at the American Library Association [ALA]. When one fakes claims of homophobia so as to promote oneself, that results in increased real discrimination against the LGBT community, real gays, lesbians, bisexuals, transgenders, really being harmed. And ALA's Office for Intellectual Freedom [OIF] is at it again, implying the crux of whistleblower action against a West Bend, WI, library was 80 LGBT books:
Valerie Nye: You experienced a challenge eight years ago, to a large number of books when you were working at the public library. Can you describe the challenge?
Kristin Pekoll:
It was a six-month challenge that shoved me hard into the spotlight. The parent wanted over 80 LGBT books removed from the library.
The truth is that claim about the 80 LGBT books was withdrawn, thus it was not the crux of the matter. But ALA OIF is at it again with the false or misleading claims of discrimination, and resultant harm, against the LGBT community.
So I commented as follows, and the comment is currently "awaiting moderation":
"The parent wanted over 80 LGBT books removed from the library." That is highly misleading and harms the LGBT community since fake claims of LGBT discrimination results in actual increased discrimination. The complaint about the LGBT books was withdrawn because the claimant realized the request was inappropriate. So OIF saying that was the main issue means OIF is simply faking more discrimination against the LGBT community. It follows a pattern of OIF faking claims about LGBT discrimination so as to raise its own profile for its own reasons. I even recorded an author admitting ALA OIF fakes its annual lists, in this case 2010, to place LGBT books on the list of "banned books" even though other books had been challenged more often. Indeed, after I exposed this, LGBT books fell off the annual hoax list for two years. But the fakery started again and is continuing to this day with the resultant harm to the LGBT community.
"Organizations like this use superiority and self-righteousness to knock others down. Their goal is to convince librarians and teachers and parents and readers that there is something shameful in reading and learning about ideas that they consider wrong." I did not do that (and we all know you are talking about SafeLibraries). Point to a single instance where I did that, in West Bend or anywhere. Reading is not the issue. Writing is not the issue. The issue is ALA OIF misleading communities to promote its own interests. Faking claims about LGBT discrimination is just one of many examples of ALA faking claims to mislead communities, and people are being harmed as a result, especially in the LGBT community. ALA even lost a major case in the US Supreme Court in 2003 but misleads people about the results of that case to this very day.
"My colleague, Deborah Caldwell Stone, has a great quote in her office that I have great fondness for: 'Dance like no one is watching. Email like it may one day be read aloud in a deposition.'" This very same person used her personal email to order librarians to destroy evidence ALA OIF gave training featuring a trainer who asked why a women would let small children around a gay man, precisely to avoid FOIA disclosures. ALA rehired that trainer who dropped out after being exposed--if I recall Deborah Caldwell Stone did the rehiring. More homophobia at ALA. It's like a group thing at ALA OIF.
So I'm saddened to see OIF continuing with the same false information that uses the LGBT community to give itself a bump. If ALA OIF were a private company, your group homophobia would have result[ed] in the lot of you being fired long ago.
There's so much more I could say about how ALA OIF's homophobia makes me angry because of the harm it likely causes. But I might get sued again with another settlement offer that I delete this current reporting, like when I wrote Gay Hate @ Your Library. It's still up, go read what ALA wanted censored, and it's staying up.
Librarians, this homophobia is never going to stop so long as ALA OIF continues on unabated, without even a single challenge, without even a single peep.
By the way,
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On Twitter:
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text:
I have two methods which are being used to estimate a specific signal. I have a ground truth measurement of this signal and these two methods are using noisy data to estimate this signal. This signal is computed using a sliding window, meaning that two consecutive estimates are not independent (the window is 30 seconds and a new estimate is made every 1 second, so the overlap in consecutive estimates is 29 seconds). So I now have two sets of estimates - one for each method. I want to determine which method is better, i.e. which one will have smaller residuals. I am using the absolute value of these residuals for the significance test, so the test has to be non-parametric (sort of a folded normal distribution).
The two sets of estimates are paired - they are measured at the same point in time, just using different methods. I have been looking at Wilcoxon signed-rank test but there is an assumption that each pair is independent from each other, which they are not in this case.
What is the best way to perform a statistical test on paired data for which each population is not independent?
Please let me know if any clarification is required. Thanks in advance!


text:
September 6, 2000
Headquarters, Washington, DC
John Ira Petty
Johnson Space Center, Houston, TX
The most up-to-the-minute language-instruction technology, used in the space program, may come to the rescue of some venerable old languages and cultures.
Native American educators are looking at technology from NASA's Johnson Space Center, Houston, TX, in their efforts to preserve and teach their peoples' languages. Johnson's Language Education Center, one of the largest and most advanced of its kind, teaches astronauts, Russian cosmonauts and others English, Russian and Japanese.
Vernon Finley and Johnny Arlee, language instructors at Salish Kootenai College on the Flathead Indian Reservation at Pablo, in northwestern Montana, recently visited the language center.
Arlee teaches the Salish Cultural Leadership Program at the college. The program's goal is to pass cultural leadership on to future generations by developing leaders to replace the elders. "Most who still speak the Salish language are elders," said Arlee, who at 59 is among the youngest of the fewer than 100 who still speak their native Salish language.
Finley, 46, teaches Kootenai. "While there have been language preservation efforts, they have not produced many fluent speakers," said Finley. "Unfortunately, the Kootenai are even fewer in number than the Salish, with fewer elders to speak and teach the language." Both cultures view language fluency as a vital part of the development of future leaders.
The teachers' visit to Johnson verified that they are moving in the right direction. Although they are concerned that they must produce many of their own materials, the center provides models that they can use in developing their tools.
"I believe the two visitors have seen technology and methodology that will help them teach and preserve their languages. It was a very productive visit, " said Tony Vanchu, director of the Language Education Center.
NASA's continuing efforts to transfer benefits of space-related research and development to the private sector are coordinated by Johnson's Office of Technology Transfer and Commercialization.
- end -

source: HuggingFaceFW/fineweb-edu


PPL Tutor Help Center
The CAA e-Exams
Written by Karl Bunyan
Updated 4 months ago
All PPL Ground School exams in the UK are now taken through the CAA's e-Exam System. This differs from the old system in that there is now a much larger question bank, and questions are randomised (rather than being one of three non-changing papers). The syllabus, however, is the same.
At PPL Tutor we've always believed that the best way to prepare for the exams was also the best way to prepare for flying i.e. learn the material rather than just the answers. Although we realise that being able to practice the exact exams before you sit them "for real" is a real benefit, the larger question bank means that 1) there are many more questions a student would have to attempt to memorise, if that was how they wanted to pass and 2) it's much harder for any exam application to mirror that database.
Given that, we are taking the approach of expanding both our question banks and our revision content so we can help you to learn the subject, not just the questions.
Plus, of course, we provide all Air Law content for free. As this is generally the first exam to be taken then, as before, the best approach is to study and practice for this exam with PPL Tutor and if you think the application has helped you to pass then you can consider paying for the other subjects.
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Write closures with Python
It is not the easiest bit to grasp, but really worth it.
A closure is a function that returns a function.
def multiplier_of(x):
 def multiply(y):
 return x * y
 return multiply
multiplywith5 = multiplier_of(5)
# multiplywith5 is equal to:
#
# def multiply(y):
# return 5 * y
#
print(multiplywith5(9)) # => 45
In Rubyland one usually uses blocks (yield) instead of closures.
⬅ Read previous Read next ➡


How to Make Date Paste
Many of our desserts and baking recipes rely heavily on date paste as a replacement for sugar. Because date paste includes the same nutrients you find in dates, it brings more nutrition to a dish than refined sugars. Date paste, however, is not easily available in most major grocery stores, which might leave you scratching your head. Never fear! Date paste is just date puree, and it's easy to make. Here are some tips for getting good results.
Apple-Date Torte
Apple-Date Torte is a wonderful dessert for trying out date paste because it's very forgiving where consistency is concerned.
1. Choose your dates.
For the best health benefit, look for whole, unsweetened dates. The ingredients label on the package should say only "dates." Some dried or chopped, candied dates contain added sugar, which you don't need.
2. Choose your amount.
Estimating your quantity is tricky, since date sizes vary by type and your ultimate volume will also depend on how much water you add. As a general rule of thumb, however, you will get approximately 1 cup of date paste for 12 Medjool dates.
3. Soak your dates.
Straight up dates will produce a paste thick enough to jam most blenders and getting a smooth consistency can be challenging. Cover your dates with warm water for 1 hour, then drain the liquid off completely, reserving the liquid.
4. Puree the dates.
Using the most powerful blending tool in your kitchen (blender, food processor, whatever you own that's strongest), puree the dates. If you're having trouble getting them to a nice paste consistency (think tomato paste for comparison), add in just enough water to reach a workable consistency.
5. Store the extra.
Because amounts can be challenging to adjust, it's not a bad idea to make date paste in a larger batch than you expect to need. Measure out 1/4 cup increments onto a parchment covered baking sheet and cover loosely with plastic wrap. Freeze for 4-6 hours, then transfer to a freezer bag for later use.


text:
Isolated Reductive Dehalogenase Genes
Ritalahti, Kirsti M.
MetadataShow full item record
The invention is directed to novel reductive dehalogenase genes encoding for reductive dehalogenases which are capable of dehalogenating halogenated organic compounds and may be useful in the bioremediation of pollutants. In particular, the invention provides an isolated polynucleotide of a novel vinyl chloride dehalogenase gene (bvcA). The novel vinyl chloride dehalogenase gene encodes a reductive dehalogenase that is capable of the complete reduction of vinyl chloride to ethene.
- Georgia Tech Patents


text: This rare instrument, combining a transverse flute and an oboe in the form of a walking stick, is made of narwhal tusk, a precious material once valued higher than gold and believed to be from the horn of the mythological unicorn. Georg Henrich Scherer was the last and most important member of a well-known eighteenth-century family of German woodwind makers. Among his clients was Frederick the Great, who played and owned a small collection of flutes. The king pursued a scientific interest in testing the acoustical attributes of different materials, which may account in part for the use of narwhal tusk. This instrument is said to have been a gift from Frederick to his finance minister. Scherer made a similar instrument, now in the Landesmuseum, Darmstadt. Walking-stick instruments became fashionable in the first half of the nineteenth century, but were usually conceived as a single instrument, be it a recorder, a fiddle, or a flute.


text:
lets say you get called out, confronted or talked to about your problematic behavior. great, someone just revealed that they believe in your capacity to change and grow, you should be grateful they haven't given up on you.
now if you choose to tip toe around them or act like a sad puppy, this is problematic. why? its not accountable, it puts the attention back on you, it is further using your privilege, entitlement. just don't do it. apologize again if you have to, or remind yourself why the person talked to you in the first place. this might be your awareness calling you out and telling you its time to own your privilege.
fabian romeroindigenous immigrant queer boi writer and educator


What can future doctors learn from patients with rare diseases?
As it does every year, Orphanet Journal of Rare Diseases partnered with Findacure in its Student Voice essay contest. The overall winner will be published in the journal on Rare Disease Day, and we are proud to present the other finalists here. For this entry, undergraduate and masters students from around the world were asked to use a case study to demonstrate what future doctors can learn from patients with rare diseases. In this blog, Timothy Badcock describes his experience in helping a patient with X-linked agammaglobulinaemia.
As a junior doctor and student on a Masters in Public Health course, I find that I am still learning every day from all sources, including patients (or perhaps especially from patients). Most patients I see are listened to, diagnosed, and treated as they make their way out of my room and inner psyche… but not this one. This patient has drastically altered my own understanding of patient health beliefs/illness-models.
A 20 year old patient attended my morning clinic with a chest infection, which would usually be pretty common. My patient reported a two-week history of a cough with no sputum production and no shortness of breath. He didn't feel unwell. When listening to his chest there were crackles on both sides and he didn't have any raised lymph nodes. He suggested he wanted antibiotics, which is not a rare request.
"Whilst I'm here doc, can I weigh myself? I'm eating big meals all the time but I'm still not gaining weight." The patient was 1.90m with BMI of 22.8. He had joined a rowing club and been told to gain 10% of his body weight. He had taken this to heart and set about to eating roughly double the recommended daily intake of food.
He had seen several different GPs for five similar coughs in the past 12 months and on two occasions had been prescribed antibiotics. He had a stable sexual partner and did not inject drugs. Prior to this year, he had never seen a doctor for anything other than immunisations. It struck me how often he was attending despite looking well and not striking me as health anxious. Subsequently I started him on antibiotics and took a series of blood tests to check his immune system.
I now ask patients about how they feel when they have been diagnosed with a condition.
All of his routine bloods came back as being normal but on the third day, his immunoglobulin (infection fighting cells) test showed negligible numbers. I picked up the phone and immediately referred him to immunology. The next day the patient attended an outpatient appointment and was diagnosed with X-linked agammaglobulinaemia, a rare chromosome disorder that he would have had since birth, finding him unable to produce the immune cells which fight infection. Presenting with symptoms in one's twenties is incredibly rare as the condition usually manifests with recurrent illnesses, from 6 months old at termination of breastfeeding.
After a few weeks of antibiotics and an infusion to replace his missing immunoglobulins he bounded into my room. "Doc, check out my weight". He beamed at his 5Kg gain in 6 weeks. "How can I help you today?" I asked. "Oh nothing, I just wanted to thank you for listening to me".
Since then I have seen him on several occasions to review how he has been doing. He has been fully educated about his condition by both myself and his team of doctors in the hospital. He understands that he will need lifelong treatment and that he is at a much higher risk of infections compared to his peers. Attending all of his regular infusions will limit that risk but he will still need to be vigilant about preventing infections and self-monitoring.
The most interesting part was how much he believed that his new diagnosis gave him a reason for why he had been unable to put on weight, and why he had always had a sniffly nose for as long as he could remember. For him the revelation opened doors rather than closed them. Now he could put on the weight he needed to do the activities that he enjoyed. He had even more energy than he had previously. He understood his body. He was happy to talk about his experience with others. Eventually he stopped coming to see me, too busy enjoying his new life of vitality.
As a consequence of meeting this patient, I now ask patients about how they feel when they have been diagnosed with a condition. I ask what the diagnosis means to them and I subtly try to shift their illness belief towards looking at the positive aspects. I am a firm believer that people rarely remember what you say, but that they will remember how you made them feel. In the case of a life-long chronic disease, no approach is more important than this as it encourages patients to engage with their doctor for what will be a life-long journey. I want to make patients optimistic.
View the latest posts on the On Medicine homepage


text:
- 12 Letter-sized (8½" x 11″) sheets suitable to pass through your inkjet printer or draw directly using a permanent marker or pencil – use for appliqué, paper piecing, quilting and embroidery.
- Water-soluble, it can also be used as a stabilizer, either as backing or a topper, for various projects.
- Easily tears away or simply wash as normal to dissolve the paper.
- Ideal for: quilting patterns, foundation piecing, hand work, needlepunch, shadow work, heirloom work, counted cross stitch, quilting templates, thread sketching, edge work, 3-D applique, cut work and charted needlework.
- By Pellon.


text:
An aircraft whose airspeed is vnot has to fly from town O (at
the origin) to town P, which is a distance D due east. There is a
steady gentle wind shear, such that vwind =Vyxhat, where x and y
are measured east and north respectively. Find the path y=y(x),
which the plane should follow to minimize flight time, as
(a) Find the plane's ground speed in terms of vnot, V, phi (the angle by which the plane heads to the north of east), and the plane's position.
(b) Qrite down the time of flight as an integral of the form. Show that if we assume that yprime and phi both remain small (as is certainly reasonable it the wind speed is not too large), then the integrand f takes the approximate form (1+1/2yprimesquaredd)/1+ky) (times an unintersting constant) where k=V/vnot.
(c) Write down the Euler-Lagrange equation that determines the best path. How far north does this path take the plane, if D=2000 miles, vnot=500mph, and the wind shear is V=.5 mph/mi? How much time does the plane save by following this path?


text:
the article through here: martinhilbert.net/WorldInfoCapacity.html
- Digital Communication. Tata McGraw-Hill Education. 2005. ISBN 978-0-07059117-2. _URL_
- Bit Calculator – a tool providing conversions between bit, byte, kilobit, kilobyte, megabit, megabyte, gigabit, gigabyte
- BitXByteConverter – a tool for computing file sizes, storage capacity, and digital information in various units
Original source: _URL_ Read more


Translator Disclaimer
Paper
29 October 2014 Light field creating and imaging with different order intensity derivatives
Author Affiliations +
Abstract
Microscopic image restoration and reconstruction is a challenging topic in the image processing and computer vision, which can be widely applied to life science, biology and medicine etc. A microscopic light field creating and three dimensional (3D) reconstruction method is proposed for transparent or partially transparent microscopic samples, which is based on the Taylor expansion theorem and polynomial fitting. Firstly the image stack of the specimen is divided into several groups in an overlapping or non-overlapping way along the optical axis, and the first image of every group is regarded as reference image. Then different order intensity derivatives are calculated using all the images of every group and polynomial fitting method based on the assumption that the structure of the specimen contained by the image stack in a small range along the optical axis are possessed of smooth and linear property. Subsequently, new images located any position from which to reference image the distance is Δz along the optical axis can be generated by means of Taylor expansion theorem and the calculated different order intensity derivatives. Finally, the microscopic specimen can be reconstructed in 3D form using deconvolution technology and all the images including both the observed images and the generated images. The experimental results show the effectiveness and feasibility of our method.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yu Wang and Huan Jiang "Light field creating and imaging with different order intensity derivatives", Proc. SPIE 9273, Optoelectronic Imaging and Multimedia Technology III, 92730Z (29 October 2014); _URL_
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College Kid Perfects the Pot Fridge
If you live in a primitive environment, like a desert, modern amenities aren't going to do you much good. A refrigerator would come in handy, but what are you going to do, plug it into your camel!
However, rural farmers in Nigeria, who don't have access to water, electricity or even transportation, have been refrigerating things for years.
They use a simple contraption. One big pot, with a small pot placed in the middle, wet sand goes in between the two and as the water evaporates it cools whatever's in the center pot.
And now, a British college student has modernized the contraption.
Unlike the third-world fridge, 21 year old, Emily Cummins's supped up version is made with metal cylinders, wire mesh and wood, but it works the same way. In between the cylinders is some sort of wet absorbent material, like soil, wool or sand, and evaporation does the rest.
The sustainable refrigerator requires no electricity and can keep foods, like meat and milk, cool for days, holding steady at about 43 degrees Fahrenheit; The Guardian reports.
I don't know how practical it is, especially since you have to keep rewetting the sand. Also, it kind of looks like a birdfeeder.
Via EarthFirst.
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Appidemic: Underground Kingdom for iPad
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The thing I remember most fondly about Choose Your Own Adventure books, beside the wild and fantastic stories, was that you had a sense of making decisions, and that your decisions could lead to death. The books made no bones about it, you were dead, usually in a grisly manner, and it was your fault. After all, you made the choice. But, of course, if you kept your thumb parked on the decision page, you could quickly backtrack and tell yourself that wasn't really what you meant to do. This proud tradition continues with Underground Kingdom, an interactive fiction book for iPad that's based on an original Choose Your Own Adventure book, but is now separate of the series.
What is it?
Underground Kingdom is an interactive book. It's not a game, except that you make decisions, and there are no puzzles to solve other than making your way through the story itself. You—a genderless character who's face is never seen—are part of a scientific expedition to Greenland investigating a bottomless crevasse that may lead to a lost land inside a hollow Earth. And since the app is titled Underground Kingdom, chances are good that it will.
After falling into the crevasse, you'll have to find your way back home as you make your way through a fantastic land filled with gigantic, rainbow colored birds and simian kingdoms, and you'll either avert or take part in a war.
Underground Kingdom
Then there's the matter of the missing scientist, who fell into the crack more than a year ago. Can you make it home? Do you want to try?
How does it work?
After reading a page of story, you swipe to the next page, which might contain an illustration or a decision point. The illustrations have a few interactive elements—tapping on a character will make him speak a line, tapping on a hut will show you what's inside—but these don't affect the story at all. The decision points are two to three boxes, each of which make it clear what action you're trying to take.
Once you make a choice, the story continues in the same fashion until you reach one of 23 endings; some good, some bad. If you immediately regret your decision, you can swipe back (just like turning a page), or you can take advantage of the menu page, which shows a map of all the pages you've visited, all the choices you didn't take (indicated with a red dot) and all the endings you've encountered (indicated with a blue diamond). A handy counter also tells you how many of the endings you've unlocked.
And, of course, there is the ubiquitous social media feature, letting you send the results of your adventure to Twitter or Facebook, along with a brief description of how you ended up.
Is it addictive?
Underground Kingdom is a classic CYOA in every sense: pitched with a sense of childlike wonder at a fantasy world just ripe for exploration, but with dramatic stakes and consequences. Finding the "best" path is a matter of trial and error, with some choices leading to unexpected areas of the story. I was pleasantly surprised at how deep the story got; after coming to my first ending after a handful of choices, I was disappointed, then went back and discovered a much deeper branch on my second try that lead to an even wider branch to explore different parts of the hollow earth.
The book will evoke nostalgia for those adults who loved Choose Your Own Adventure, but is probably best pitched towards kids. The story is straightforward, the options are clear, and the illustrations are colorful and imaginative. And like I say, it keeps those wonderfully ghoulish endings where you're left to contemplate how your own greed, foolishness, or outright bad luck brought you to a horrible, horrible death.
Category: Interactive Fiction
Developer: Visual Baker
Cost: $2.99
Download: Underground Kingdom
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text:
Corkscrew Seal Lesions
Two seals found on the same stretch of beach in 2009 were juvenile harbour seals (Phoca vitulina). Three seals examined in 2010 were pregnant adult harbour seals.
The key pathological findings were consistent in all five seals suggesting a common cause. All had corkscrew-shaped wounds originating on the left hand side of the mouth and spiraling in a single, clean-cut continuous wound around the head and neck to end midway down the body. In every case, the wound spiraled clockwise when viewed head-on.
The carcasses were relatively decomposed, however it is considered the seals were alive when the injuries were sustained. With this degree of trauma it is likely death was instantaneous.
Seal skin is tough and these animals showed a single unbroken clean cut, angled at about 35 degrees towards the tail. The cut extended onto the ribcage but did not cause rib fractures or trauma to underlying harder body structures. The juvenile seals examined by SMRU exhibited cuts through the bone of the skull. (see picture)
The blubber and connective tissue had been 'peeled' off the underlying skeleton, indicating powerful shear forces were involved in addition to the cutting process.
There was no evidence of any underlying disease process in any of the seals examined. Blubber thickness was normal for the time of year in all cases. The stomach of one animal had a large amount of partially digested fish showed it had recently fed.
The seals we examined were either juvenile or heavily pregnant. It is possible animals in these groups have different feeding behaviors, or are slower than normal.


text:
Honors requirements for physics and astronomy majors
The requirements for graduation with honors in physics are:
- Minimum cumulative GPA of 3.3 and total of six honors courses (18 hours minimum) overall, including two honors courses outside the major
- At least three honors courses (of 3 or more semester hours each) in physics or astronomy; at least one of the three must be an advanced theory course from 335-376, excluding 347
- Cumulative GPA of at least 3.3 in physics, astronomy, and mathematics collectively
- Completion of an approved physics major, with at least 40 semester hours of physics or the secondary education physics major (Astronomy 384 and Astronomy 395 may be counted in the 40 hours.)
- Successful completion of a departmentally approved research project in physics or astronomy (typically through summer research) and Physics or Astronomy 395.
To obtain honors credit in any physics or astronomy course, a student can make a contract with the course instructor regarding a special project. Alternatively, a student in an Introductory level physics course up through Physics 235 or in a 100–200 level astronomy course may earn honors in that course by concurrently taking the seminar course, Physics 195, and completing its requirements. A student must earn a grade of "B" or better in a course to receive honors designation for that course.


text: NON is a project space founded by video artist Chan Sook Choi and architect Ido Shin. As Koreans living in Berlin since 2001, since the very beginning they have been interested in seeking a kind of universal identity spanning the various backgrounds of Berlin based contemporary artists in order to examine the question of identity as it is often perceived from the outside; according to gender, nationality and cultural milieu. To this end they created NON Berlin - Asia Contemporary Art Platform - in 2014. Two ideas are the mainstay of this: firstly, 'NON' means 'to discuss' in Chinese. Thus NON Berlin opens up a platform for discussing the dichotomy between 'East and West' and 'Asia and Europe' and initiates 'face to face' meetings, facilitating exchange, discourse and networking. Secondly, and somewhat paradoxically, NON Berlin serves as a negation, 'not Berlin', although the project space - a draw for artists and producers from the independent cultural scenes of the world - is situated in Berlin's centre. NON Berlin is not limited to a particular artistic scene or cultural identity. Instead, it presents projects that seek new interdisciplinary perspectives in order to create an intermediary zone for re-evaluating existing categories. Nomads from multiple or dynamic locations, and mostly stemming from multicultural backgrounds, possess a sensibility for current topics, transformations and fractures via their positioning as contemporary artists.


text:
Failla leads Ohio State Discovery Theme – Foods for Health
Food plays a critical role in our health. Mark Failla, faculty emeritus of human nutrition, is interim faculty lead with Ohio State's Discovery Theme focused on the science of using food and nutrition to promote health and prevent disease.
Under the initiative, Failla helps select new faculty, including Rachel Kopec ('12 PhD) an assistant professor of human nutrition. Kopec uses metabolomics technology to understand how different individuals metabolize nutrients and other compounds in foods. Knowledge of these differences will help personalize diets and find novel foods that promote wellness or decrease risk and severity of disease.
Failla also played a critical role in planning the Inaugural Conference on Personalized Food and Nutritional Metabolomics for Health, which was jointly held with the 14th Annual Mass Spectrometry Symposium at Ohio State in May. The event further enhanced collaborative efforts among academic research teams and stimulated the development of strategic partnerships with the food and health industries.
Learn more at Discovery.osu.edu.


your own, you can easily do it with the help of a few tips and guidelines.
All you need are some essential tools, supplies, and a whole lot of patience.
Take a look at this short, useful guide on how to install a urinal on your own without any problem or inconvenience.
Step 1: Gather Essential Tools
First things first, you need to gather all the supplies that are required to hang or mount a urinal on a wall.
Some of the basic tools and accessories that you will need include:
 - Tape measure
 - Electric drill
 - Clean rag
 - PVC cement
 - Tape
 - Pencil
 - Level
 - Plywood
 - Drill bits
 - Drywall saw
 - Carpenter's level
Step 2: Fit the Mounting Board for Support
Once you have all the tools well in place, the next step is to fit a mounting board to the wall in order to provide support to the urinal.
For this, take a piece of weather-treated plywood and then adequately secure it on the wall studs with the help of some nails.
Step 3: Add a Water Line
At this point, you need to determine where the water supply will be located so that you can add the water line.
You can use a stencil here to mark the exact locations at a height of 24 inches. Drill pilot holes with the help of a drill machine.
The holes will be drilled where you'll be mounting the hanger screws.
Then, use the drywall saw to remove the required drywall in order to attach the wastewater line along with the water supply line in the marked location.
Place the pipes in the correct position in a way that they attach to the front of the faucet.
Try to make sure that you add a shut-off valve before placing the pipe in its desired position.
This will make it easy for you to turn off the water supply whenever you want.
Step 4: Attach the Urinal Wall Hangers
Urinal Wall Hangers
With the help of the supplied screws and nails, you should now mount the urinal wall hangers in their respective positions.
Use a carpenter's level to make sure that the hangers are mounted correctly at the same level.
You can adjust them as per your requirements.
Also, another important thing to do is to screw the wall hangers not only to the wall but also to the supporting wooden mounting board that you attached earlier in step 2.
Step 5: Install a Drain in the Urinal
Before hanging the urinal on the wall, fit the drain first into the urinal.
Add a layer of caulk to the ring of metal present at the bottom of the urinal by placing a strainer into the hole.
Press it down further till it is sealed tightly.
Additionally, add a combination of rubber and metal washers on the other side of the urinal, underneath the strainer, and secure it further with the help of a nut or two.
Step 6: Install Waste Outlet
With the help of PVC cement, connect the waste outlet to the waste pipe that you installed earlier.
Make sure that the outlet connection is exactly where it should be to prevent any problems later.
Step 7: Hang the Urinal
This is the final step for how to install a urinal. Carefully lift it and hold it above the wall hangers and align the position of the urinal according to that of the waste outlet.
Attach it in a way that the waste opening is located behind the urinal.
Place it well into the hangers and tighten the screws just enough to hold the urinal firmly against the wall.
Over-tightening will simply crack the porcelain surface of the urinal, so don't tighten the attachment screws too much.
How High Should a Urinal Be Mounted?
Man Installing A Urinal
For standard home use, installing a wall-mounted urinal should be done at a height of 24 inches, which is the average height for mounting a wall urinal.
The said 24 inches are basically measured from the floor all the way up to the rim of the urinal.
Although this is the standard height for a wall-urinal, it can still vary depending on where you live because different residential communities tend to have specific regulations and rules when it comes to urinals.
It is best to check the local codes of your building when installing a urinal in your bathroom or toilet.
Do Urinals Have Built-In Traps?
Yes, some models and types of urinals do come with built-in traps that play a very important role in the entire process.
For instance, a standard urinal has a pipe known as a "P-trap" where all the water is flushed into it by the urinal.
This P-trap is designed in a way that it forms a water seal to prevent the escape of sewer gases into the atmosphere.
Also, most water-free or waterless urinals feature a built-in 'EcoTrap,' which serves two main purposes.
Firstly, it allows a smooth, uninterrupted flow of urine to the bottom of the urinal until it reaches plumbing sewer connections.
Secondly, it also prevents the escape of sewer odors and stops them from affecting the indoor air quality of the restroom.
Are Urinals Hygienic?
Man Cleaning Urinals
The thing with urinals is that you must use them properly if you wish to ensure their good hygiene and cleanliness.
Additionally, you need to follow a proper cleaning routine if you have urinals in your home.
Try to make sure that the faucets, pipes, and other fittings are cleaned daily and sanitized regularly.
Additionally, you can also place disposable urinal mats on the floor in order to help dispel unpleasant odor from the air and keep it fresh.
However, on the other hand, waterless or water-free urinals that we discussed earlier are considered to be completely hygienic since they don't make use of any water.
No water means that the surface of these urinals is always dry and barely ever damp, which greatly prevents the growth of bacteria and mold. This ensures great hygiene and cleanliness at all times.
Final Word
Now that you've learned how to install a urinal, you can easily make the switch from traditional toilets to modern, waterless urinals that not only prevent water wastage, but also save a lot of your time, money, and efforts at the same time.
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text:
The Ju 87 Stuka was a purpose-built dive-bomber which entered Luftwaffe service in 1935. Over 6,500 Stukas were built, and they were highly accurate and successful when there was no fighter opposition present.
It had many unique design features including an automatic system for dive recovery, so that if the pilot blacked out during pull-up, the Ju 87 would level itself without intervention from the pilot.
The standard armament was 1 x 250Kg bomb and 2 x 50Kg bombs, with 2 x 7.92mm machine guns in the wings and one for defence in the rear cockpit.
This example is a Ju 87 B2 of StabII/StG 1 Luftwaffe 1941.


How to Send a Message on Nextdoor
As you most likely already know, Nextdoor is a social network made for neighborhoods. It gives you a chance to get to know your neighbors better, assuming that they're also using the app. Besides posting public posts, you can send private messages to people, just like on most other social networks. Here's how to do this from a computer, an Android smartphone, and an iPhone.
Sending a Message from Your Computer
If you're in front of a computer screen, you can send a message using your web browser:
 1. Open the Nextdoor website. Make sure that you're logged in.
 2. Near the bottom of the navigation menu, there's a "Directory" button. Click on it.
 3. A list of people in your neighborhood will appear. Next to each person, there's a "Message" button to the right. Click on that button to proceed.
 4. A new pop-up window will appear, prompting you to enter the message subject and text.
 5. When you're done, click on the "Send" button.
You can also send a message to someone from the Newsfeed if you've come across a post of theirs:
 1. Find the post in question and then click on the post author's name.
 2. Choose "Message."
 3. Enter the message subject and text. When you're done, click on "Send."
Sending a Message from Your Android Phone
Make sure that you have the "Nextdoor for Android" app and that you're logged in here. If you don't have it, you can download it for free from the Play Store. After you've done that and you've logged in, follow these steps:
 1. In the bottom-right corner of the screen, there should be a round green button with a white plus inside. Tap on it.
 2. Choose "Private Message."
 3. The app will then take you to the list of your neighbors. Find and select the person that you would like to message.
 4. Tap on the "Next" button.
 5. Write your message. Tap on the "Send" button after you're finished.
To send a message to a person from a post on the "Newsfeed," here are the steps you should take on the Android app:
 1. Find the post on the "Newsfeed" if you haven't done so already.
 2. Look for the profile picture of the post author and tap on it.
 3. Select "Send private message."
 4. Write your message. When done, tap "Send."
Sending a Message from Your iPhone
Again, whichever smartphone you're using, you need to have their corresponding apps installed. If you don't have the "Nextdoor for iPhone" app installed, you can download it from the App Store. Here's how to send Nextdoor messages from your iPhone, provided you have opened the app and logged in already:
 1. At the bottom of your screen, there will a button that only has two conversation bubbles. Give it a tap.
 2. Choose the "Compose" option. It's located in the top-right corner.
 3. Look for the neighbor you're planning to message.
 4. After you have found your person, select "Next."
 5. Write your message, then tap on the "Send" button when done.
To directly message someone through their Newsfeed post:
 1. Find the message or post in the Newsfeed.
 2. Tap on the profile picture of the post author.
 3. Proceed with "Send private message."
 4. Compose your message. After that, tap on "Send."
Staying Connected
Since Nextdoor is a social network, the ease of sending messages on it doesn't come as a surprise. Why not go ahead and get to know your new neighbors better? There's no reason to put it off.
Are you happy with your current neighborhood? Have you been using some form of social media to keep in touch with your neighbors? Let us know in the comments below.
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I need some help in finishing up installation of Rainbird drip irrigation system in my garden. If you would like to do some light work, call _PHONE_.
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How to Monitor SQL Queries
 - Updated on 15 Jun 2018
 - 1 minute to read
 - Contributors
If your app relies on a database, you know that problems in the database often have wide-reaching impact downstream. In this section, you will learn how to make SQL monitors to effectively monitor query results. SQL Monitors are a great way to more proactively keep tabs on data and database health.
Preparing for SQL Monitors
If you haven't already set up the database information within Retrace, you should setup your database credentials, configure a database connection, and then create a reusable query. See the SQL Connections article to see how to set this up.
SQL Monitors Page
To begin, go to the Monitoring page and find the SQL Queries tab. Select "Add New" to configure a new monitor.
Select A Type Of Query To Monitor
You will be given the option to create new a monitor from an existing query or to create a new query to be monitored. Retrace supports SQL Server, MySQL, Oracle, and PostgreSQL database types.
When creating a new query to be monitored, you will be asked to enter the database connection details for the query.
Select A Query And Connection
If you chose to use an existing query, you will select which query to use here. Next you will choose an existing connection to run the query on. The query will be sent from an agent currently installed on one of your Active Devices.
Once you create the SQL connection and select the query, you can then add and configure monitors.
Configure the Monitor
Below is an example of some settings you could configure to monitor a SQL query.
Duration: Depending on how long the SQL statement takes to execute, an alert could be set up to notify you about it. In the example above, alerts will occur at 1, 2, or 3 seconds.
Record Count: This warning will occur every time a record count is 1 or greater. In this case, this would alert you every time a customer is missing an email address in the database.
Result Check: This setting will check the value of the query results. This is especially useful if you want an alert for unexpected query results.


Working with local files (Simple)
Exclusive offer: get 50% off this eBook here
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by Christophe Muller | August 2013 | Open Source
This article by Christophe Muller, from the book Instant Mercurial SCM Essential How-to, explains how to work with local files, either personal projects or files you wish to be version controlled (for example, source code or configuration files). You will learn how to create a new repository, make changes, and track them (selecting files to track, recording changes, and reversing those changes).
(For more resources related to this topic, see here.)
Getting ready
Now that you have Mercurial set up on your computer, you are going to use it to track all the changes that can happen in a configuration directory, for example, in the configuration files of Apache2 (a web server). It could of course be used in any other type of directory and files: your home directory configuration files, some personal development projects, or some Mozilla Firefox configuration files such as user.js and prefs.js, and likewise. If you do not have Apache2 installed on your computer, you can do the same type of exercises, for instance, in $HOME/src. Also, with the owners of the /etc/apache2 files being root, you will need to change their owner to your account. For example, your username/group both being mary/mary:
$ sudo chown -R mary:mary /etc/apache2/
How to do it...
 1. The first thing to do is to initialize a new repository by typing these lines:
 $ cd /etc/apache2/
 $ hg init
 2. You can then show the status of the files in your new repository, that is, which files are tracked and which are unknown to Mercurial, and also which files have changed, which have been deleted, and so on. This is done using the Mercurial status command:
 $ hg status
 ? apache2.conf
 ? conf.d/charset
 ? […]
 ? sites-available/default-ssl
 ? sites-enabled/000-default
 3. As you can see, everything is untracked right now. The way to tell Mercurial which files you want to be version controlled and added to your newly created repository is by using the add command. For example, if you want to track changes in the apache2.conf file, and all the files of the sites-available directory, you need to type:
 $ hg add apache2.conf sites-available/
 4. Showing the status again, Mercurial now tells us that three files have been added (by showing A, which denotes Added ; instead of ?—, denoting Unknown , in front of its path):
 $ hg status
 A apache2.conf
 A sites-available/default
 A sites-available/default-ssl
 ? conf.d/charset
 […]
 5. Now if you want to record the initial version of these files (the one provided by your distribution), you need to use the commit command and add a log message using the -m option:
 $ hg commit -m"initial version"
 6. Using the log command, you can print the entire history of your repository (here you used commit only once, so only one change—called a changeset —is listed):
 $ hg log
 changeset: 0:7b3b5fcb16d0
 tag: tip
 user: Mary <_EMAIL_> […date…]
 summary: initial version
 7. Whenever you change a file, you can record the modification in Mercurial with the commit command. Let's type the following sequence using the status, diff, commit, and log commands:
 $ vi apache2.conf
 ..make some changes: add "# new line" at the end of the file
 $ hg status -m
 M apache2.conf
 $ hg diff
 diff -r 7b3b5fcb16d0 apache2.conf
 […]
 +# new line
 $ hg commit -m"added a line at the end"
 $ hg log
 changeset: 1:02704fcf58b1
 user: Mary <_EMAIL_>
 summary: added a line at the end
 changeset: 0:7b3b5fcb16d0 […]
 8. You can also reverse the modifications; for instance, if you modify a line again in apache2.conf, such as changing # new line by # new linez, using the diff command, you can see your modification:
 $ hg diff
 diff -r b0d2bfb95d81 apache2.conf […]
 -# new line
 +# new linez
 9. It is then possible to come back to the latest saved version using the revert command:
 $ hg revert apache2.conf
 $ hg status
 ? apache2.conf.orig
 $ tail -1 apache2.conf
 # new line
 10. At this stage, you can't see the M apache2.conf file any more, and the value at the last line is the one that is not modified, but there is a new file called apache2.conf.orig; this is because the revert command saves your modifications in a backup file. You can either delete it afterward or you can use the --no-backup option if you know what you do. Mercurial has a conservative philosophy to avoid losing data.
 11. Finally, if you realize that you do not need a file any more, you can remove it from being version controlled and from your working directory by using the remove command. For example, if you don't need the SSL configuration file of Apache, you can remove it by typing:
 $ hg remove sites-available/default-ssl
 $ hg status
 R sites-available/default-ssl
 Instant Mercurial Distributed SCM Essential How-to
 13
 $ hg commit -m"removed unused ssl conf file"
 $ ls sites-available/
 default
 12. Note that the file has disappeared from your working directory, and even if you create a file with the same name, it will not be version controlled anymore (unless you add it again). But, of course, it is still possible to get it back or to get a version of apache2.conf exactly how it came with the distribution. In order to do that, you need to use the update command and ask to switch to revision 0:
 $ hg update -C 0
 $ ls sites-available/
 default default-ssl
 $ tail -1 apache2.conf
 Include sites-enabled/
 13. In order to switch back to the latest revision (it is coined the tip), you can just call update again with no revision passed as an argument:
 $ hg update -C
 2 files updated, 0 files merged, 1 files removed, 0 files
 unresolved
How it works...
With this sequence, you already know how to manage versions of your personal projects: save a version, undo a change, retrieve an older version, and so on. Let's take a closer look at what happens under the hood.
After you type hg init, a directory called .hg is created:
$ ls -a
. apache2.conf envvars magic mods-enabled sites-availabl
.. conf.d .hg mods-available ports.conf sites-
This directory, called a repository, contains the history of your project and some Mercurial metadata. This is where Mercurial records all your revisions of tracked files (actually, it stores only the differences between each revision, like RCS/CVS/Subversion, and in compressed form, so the size is usually less than that of the the actual data!). And also, this is where it stores the commit messages, information about branches, tags, bookmarks, and so on. All the other files and directories beside .hg are your project files; they form what is called a working directory. If ever you would like to forget version control in this zone, you can just remove the .hg directory.
Another interesting thing to note is that, contrary to Subversion for instance, in a local .hg repository, you do not have less information than in a repository in a central server! Your installation of Mercurial actually allows you to have both a client command (or GUI), with which you can work locally or with distant servers, and a server, with which you can share your work with colleagues. This is because, with DVCS ( Distributed VCS ), there is no difference between the data checked out to work with and the data ready to be published. When you either create a local repository or clone an existing one from a server, you have all the necessary information (in the .hg directory) to become a publisher yourself.
There's more...
This section will discuss supplementary commands or options.
Other commands
First of all, Mercurial has many commands (the list of which you can get with the command hg help


text:
CLIMBERS envy Sherpas their ability to thrive on thin mountain air. Now Canadian researchers have discovered how Sherpas' hearts use oxygen more efficiently than those of lowlanders.
When oxygen is abundant, heart muscle cells get most of their energy from burning free fatty acids, breakdown products of fat. While these fatty acids yield more energy than any other foods, they are relatively wasteful of oxygen. Glucose has a lower yield but is more efficient. Peter Hochachka and his team at the University of British Columbia in Vancouver believe that Sherpas' heart muscles rely more on glucose than on fatty acids. Using glucose, the muscles can produce up to 60 per cent more energy for every molecule of oxygen.
The team studied six Sherpas from Nepal and used magnetic resonance spectroscopy, a technique for imaging the "signature" of specific molecules, to study the metabolism of their heart muscle.
Cells store energy ...
To continue reading this article, subscribe to receive access to all of newscientist.com, including 20 years of archive content.


text:
Whole blood viscosity parameters and cerebral blood flow.
This report describes the statistical relationship of several whole blood viscosity parameters and cerebral blood flow (CBF) in 53 consecutive patients and normal controls. Significant correlations were present between CBF and serum fibrinogen (P = .05), hematocrit (P less than .05), and a relationship involving both fibrinogen and hematocrit (P less than .01). We conclude that heightened whole blood viscosity does correlate with decreased cerebral blood flow in the ranges measured in our patients, that both fibrinogen and hematocrit must be taken into consideration in viscosity determinations, and that changes in viscosity may have an important effect on CBF in regions of low flow.
- Copyright © 1982 by American Heart Association


Comparing RTMG Carbon Fiber Air Intakes with Stock Air Intakes
Comparing RTMG Carbon Fiber Air Intakes with Stock Air Intakes 1
Benefits of RTMG Carbon Fiber Air Intakes
When it comes to improving the performance of your vehicle, upgrading the air intake system can make a significant difference. One popular option in the market is the RTMG carbon fiber air intake. These air intakes offer several advantages over stock air intakes, giving your vehicle a performance boost and enhancing its overall efficiency.
 - Increased Airflow: RTMG carbon fiber air intakes are designed to provide maximum airflow to your engine. The unique design and construction of these air intakes allow for a more efficient intake of air, ensuring that your engine receives a sufficient amount of clean and cool air for combustion. This increased airflow leads to improved horsepower and torque, giving your vehicle a noticeable boost in performance.
 - Lightweight: Carbon fiber is known for its lightweight properties. Compared to stock air intakes, which are typically made of heavier materials, RTMG carbon fiber air intakes are significantly lighter. This reduction in weight helps to improve the overall weight distribution of your vehicle, which can enhance its handling and maneuverability.
 - Durability: Another advantage of RTMG carbon fiber air intakes is their durability. Carbon fiber is a strong and resilient material that can withstand the rigors of the road. Unlike stock air intakes, which are prone to cracking or warping over time, carbon fiber air intakes can withstand high temperatures and other harsh conditions without compromising performance.
 - Enhanced Engine Sound: One added benefit of installing an RTMG carbon fiber air intake is the enhanced engine sound. These air intakes are designed to provide a deeper and more aggressive engine sound, giving your vehicle a sporty and exhilarating tone. This improvement in sound adds to the overall driving experience and can make your vehicle stand out from the crowd.
 - Overall, the RTMG carbon fiber air intakes offer a range of benefits that can improve the performance and aesthetics of your vehicle. From increased airflow and horsepower to enhanced durability and engine sound, these air intakes are a popular choice among car enthusiasts looking to take their vehicle to the next level. Explore this external source we've arranged for you and discover additional details on the subject discussed. Expand your knowledge and explore new perspectives, cold air intake for vw Golf _URL_
 Drawbacks of Stock Air Intakes
 While stock air intakes are the standard option that comes with most vehicles, they have some drawbacks that limit their performance and potential. Understanding these drawbacks can help you make an informed decision when considering an upgrade to an RTMG carbon fiber air intake.
 - Restricted Airflow: Stock air intakes are designed with restrictions in airflow to meet various regulations and requirements. This restricted design can limit the amount of air that reaches your engine, affecting its performance and power output. Upgrading to an RTMG carbon fiber air intake removes these restrictions and allows for a more efficient and unrestricted airflow.
 - Heavy Construction: Stock air intakes are often made of heavier materials, such as plastic or metal. The weight of these materials can negatively impact your vehicle's weight distribution and handling. In contrast, RTMG carbon fiber air intakes are significantly lighter, improving overall weight distribution and contributing to better handling and maneuverability.
 - Poor Filtration: Stock air intakes often come with basic and standard air filters that may not effectively filter out contaminants. This can allow dirt, debris, and other particles to enter your engine, potentially causing damage over time. RTMG carbon fiber air intakes typically come with advanced filtration systems that offer superior protection for your engine.
 - Considering these drawbacks, it becomes clear why many car enthusiasts opt for an upgrade to RTMG carbon fiber air intakes. By addressing the limitations of stock air intakes, these upgrades provide a more efficient and effective solution for improving engine performance and overall driving experience.
 Conclusion
 When it comes to enhancing the performance of your vehicle, the choice between stock air intakes and RTMG carbon fiber air intakes is clear. The benefits of RTMG carbon fiber air intakes, such as increased airflow, lightweight construction, durability, and enhanced engine sound, far outweigh the limitations of stock air intakes. By investing in an RTMG carbon fiber air intake, you can take your vehicle's performance and aesthetics to new heights. To achieve a thorough learning journey, we suggest exploring this external source. It contains valuable and relevant information about the subject. Find more on this topic here, dive deeper and expand your knowledge!
 Before making any modifications to your vehicle's air intake system, it is recommended to consult with a professional or do thorough research to ensure compatibility and proper installation. Upgrading to an RTMG carbon fiber air intake can be a rewarding and worthwhile investment, providing long-term benefits and an enhanced driving experience.
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Let $\Gamma$ be a discrete cocompact subgroup of the euclidean motion group $$ G={\mathbb R}^d\rtimes O(d). $$ Let $\phi:G\to O(d)$ the projection homomorphism. Is it true that $\phi(\Gamma)$ is finite?
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Aakumadula, why not post this as an answer? It seems sufficiently precise and comprehensive – Yemon Choi Mar 6 '13 at 16:13
Yemon Choi, I thought this was just a reference. But I see your point, that it will look like an unanswered query. – Aakumadula Mar 6 '13 at 17:04
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1 Answer
up vote 6 down vote accepted
The answer is yes. This is a theorem of Bieberbach (see Corollary (8.26) of the book "Discrete Subgroups of Lie Groups" by M.S.Raghunathan (Springer Ergebnisse Tract).
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Interesting (to me!) that this is an established result, since without the co-compactness assumption the conclusion fails: an irrational winding in SO(2) combined with the one-dimensional discrete subgroup of translations immediately gives a non-discrete image in SO(2). – paul garrett Mar 7 '13 at 0:47
Professor Garrett, I do not understand your remark. If I have an element of the form $(v,r)$ in the semi-direct product of ${\mathbb R}^2$ with $SO(2)$, where $r$ is an irrational rotation, there is no guarantee that itw powers (vector component) is discrete: the $n$-th power vector component is of the form $(1+r+\cdots +r^{n-1})v$, which can well converge. – Aakumadula Mar 7 '13 at 1:16
Of course, you can take $v\in {\mathbb R}^n$ $n\geq 3$ which is fixed by the rotation $r$, in which case you get a discrete group. When you assume "co-compactness", the vector parts are sufficiently many that the rotation parts do not always fix the vector part. – Aakumadula Mar 7 '13 at 1:24
_USER_: indeed, this is a funny situation. It is late for me here in my time-zone, but (in case you'd not already in your own time thought through the facts) I'll add comments tomorrow which I hope will clarify the thing that'd been in my mind. Irrelevant to the question as posed. yes. – paul garrett Mar 7 '13 at 2:00
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Ethane Sigma Bond Rotation Conformers
ethane sigma bond
Methane Ball & Stick Model
Methane is the smallest molecule consisting of just carbon and hydrogen, CH₄. The second smallest hydrocarbon is ethane, C₂H₆. It is sometimes written H₃C–CH₃. The "dash" between the two carbon atoms represents a single bond. It is also a sigma bond. What is a sigma bond? And what are ethane sigma bond rotation conformers?
What is a Sigma Bond?
The carbon to carbon single bond is a covalent bond. That is, bonding electrons lying between the two carbon atoms are shared equally. A sigma bond is the strongest variety of covalent bond. The two atoms overlap head-on. One could view such a bond as being of cylindrical symmetry or like a straight line between the two atoms. Hence, the dash notation. Since the overlap is essentially a force, the atoms can, unless prevented by other factors, rotate with respect to each other about that bond.
Each of the two carbon atoms has three hydrogen atoms bonded to it, equally spread about, so the –CH₃ groups resemble propellers. These methyl group "propellers" can spin about the C–C sigma bond. While they are not prevented from so rotating, all the possible conformations the two groups can attain are not equal. Some force the molecule to take on a little greater energy. Others allow its release.
Rotation About the C–C Sigma Bond
Chemists us a variety of mechanical models to visualize physical properties of atoms and molecules. For ethane's rotation about the C-C sigma bond, the following YouTube video employs both the space-filling models and the ball and stick model
Ethane Sigma Bond Rotation Conformers
Ethane Sigma Bond
Ethane Staggered Conformation
Here are our ball and stick model images of the lowest and the highest energy conformers of ethane. Each hydrogen atom is surrounded by a small cloud of negative electrons.
ethane sigma bond
Ethane Eclipsed Conformer
The potential energy of the conformer with all six hydrogen atoms in closest proximity (the eclipsed structure) to each other is the greatest, due to repelling forces being at a maximum. This makes it the least stable conformer. The conformer with the hydrogen atoms furthest apart (the staggered conformation) possesses the least potential energy and so is the most stable.
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text: This is a story about the four little turtles was accidentally contaminated the especially chemical mud solution so that they become great turtle warriors. Although they still have the shape of turtles, they can walk and talk like humans. A teacher has nurtured and taught martial art for these four turtles to become the guardians of justice. The context is New York City, where crime is widespread increasingly and people are yearning the appearance of the heroes. That is when the ninja turtles emerge from the sewers and begin enforcing the justice.


text:
|Uploaded:||February 17, 2012|
|Updated:||February 17, 2012|
I really didn't know what type of scene to make for a forest like theme with when creating this next landscape lesson with a 'for kids' theme. After thinking of what else I could create that could help aid people with drawing specific backgrounds, I came up with the idea to do a tutorial on "how to draw a jungle for kids", step by step. This lesson is going to be full of trees, leaves, foothills, and a bunch of moss filled ground. A jungle is a place that has heated temperatures, with a muggy, misty, sticky feel. I had so much fun making this jungle because my little eight year old sister helped me out with the concept. I think that there is a lot of potential with this background because you can add some tropical birds, insects and even reptiles to accent the whole drawing. I was going to include some wild life, but I thought I would leave that up to you guys. Well, that's it, have fun with drawing a jungle for kids, and I will return in a bit with some more fun for you all.


(redirected from Re-entrant code)
Also found in: Thesaurus, Encyclopedia.
also re-en·trant (rē-ĕn′trənt)
1. Reentering; pointing inward.
2. Music Of or relating to strings that, when plucked in order, make a discontinuously rising and falling sequence of pitches: a lute with reentrant tuning.
A reentrant angle or part.
(riˈɛn trənt)
1. a reentering angle or part.
2. a person or thing that reenters or returns.
3. reentering or pointing inward: a reentrant angle.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.reentrant - (of angles) pointing inward; "a polygon with re-entrant angles"
References in periodicals archive?
Since a TFH can be called at any time, it must be designed as re-entrant code, similar to that used for interrupt and signal handling.
High-level languages such as C do not provide the necessary functions for creating re-entrant code. As a result, this code must be written in assembly language, and it is usually not portable.
The program counter is then modified to contain the start address of the generic TFH re-entrant code. As a result, the next instruction executed by the thread will be the TFH.


text:
Inmarsat brings IoT connectivity to rural hydroelectric power stations in Wales
RWE, a German power company in the UK, has partnered with satellite operator, Inmarsat, to implement satellite IoT connectivity to its hydroelectric power stations in rural northwest Wales.
RWE power stations are located in the mountains of Snowdonia, which receives the most amount of rainfall in Wales, providing suitable conditions for hydroelectric power generation. However, connectivity is unreliable and satellite technology integration has been proposed as a solution. IoT devices deliver up-to-date data instead of requiring staff to travel to the remote locations to gather measurements.
Inmarsat's ELERA network connects across RWE's IoT-connected power stations and has an astounding 99.9 percent availability. Sensors record rainfall, air, humidity, water levels and temperatures at intervals. This recorded data is then used to optimize electricity output while reducing environmental impact.
John McNab, Operations and Maintenance Engineer at RWE, posited that up-to-date data provided by the IoT connectivity aids in planning of maintenance by ensuring safety for workers during harsh weather conditions. McNab also stated that the data also helps in decision making when supplying renewable energy to its customers.


text:
Straw and silk ribbon
Given by N A Bicknell
Museum no. T.59-1936
The printed hat band on this child's straw hat depicts the aeroplane flown by French aviator Louis Bleriot (_PHONE_) on the first flight across the English channel, in July 1909. The flight is significant in aviation history because it was the first time a plane was flown across a large body of water.
The hat is of a popular shape for children in this period. The green petersham edging on the brim of the hat is also used at the centre of the crown. This green ribbon motif is decorated with large silk embroidery stitches, a style of embellishment which was frequently used in women's fashionable dress at the end of the first decade of the 20th century.


text:
Surname – PATER
Meaning/Origin – The name PATER comes from the Latin pater, meaning "father". In English, it is pronounced PAY-ter or PAH-ter. Hear it pronounced by a Polish speaker here.
Countries of Origin – The surname Pater can be found in several countries. According to the World Names Profiler, the countries with the highest frequency per million residents are the Netherlands, with 176, and Poland with 115. The next highest countries (and their respective frequency per million) are Luxembourg (43), France (8), Belgium (7), Canada (6), United States (6), and Germany (5). Although Great Britain is not currently listed with a high frequency, in past centuries Pater was also considered to be a British name.
Spelling Variations - The spelling does not vary in the Netherlands, but in Poland you will find a few variations, including Patera, Paterak, Paterała, Paterek, Paterkiewicz, and Paterski. (Source: Polish Surnames: Origins and Meanings, Second Edition by William F. Hoffman)
Surname Maps – The following maps illustrate the frequency of the PATER surname in the Netherlands and Poland. According to _URL_ there are about 1,500 people with the surname in the United States, with the heaviest concentration in Pennsylvania.
SOURCE: familienaam.nl database, _URL_ accessed October 10, 2009.
SOURCE: Mojkrewni.pl "Mapa nazwisk" database, _URL_ accessed October 10, 2009.
Famous Individuals with the Surname – Walter Horatio Pater (4 August 1839 – 30 July 1894) was an English writer and art critic (see some of his works here at Project Gutenberg). Jean-Baptiste Pater (29 December 1695 – 25 July 1736) was a French painter.
My Family – My Pater family comes from Poland. My earliest ancestor so far with this name is Hilary Pater, born between _PHONE_ in Poland. My line of descent is as follows: Jan (b. 1834, Kamieńskie Budy) > Jozef Pater (b. 21 Sep 1864, Ruda Guzowska, which later became Żyrardów) > Ludwik (Louis) (b. 24 Aug 1893, Żyrardów) > Henry (b. 25 Mar 1912, Philadelphia). Jozef and his family immigrated to the U.S. (Philadelphia, PA) from 1905 to 1907.
A female Pater (daughter of Jozef) may have settled in New Jersey or New York with her husband and family. The family is rumored to have cousins in Chicago as well (possibly owners of a movie theater in the 1940′s).
Based on information in the IGI, my great-grandfather's cousins remained in Żyrardów – Jozef (son of Marcin, brother of my Jozef) died in 1942 at the age of 45, and his son Bronislaw died in 1943 at the age of 22. I can only assume they died as a result of the war, but more research is needed about their lives and deaths.
My Research Challenges – I need to find evidence of Hilary's birth, marriage, and death in Polish records. He was named on his son's marriage record, but I have not yet located his own records. I would like to trace the name as far back as possible to determine if the family immigrated to Poland from somewhere else. In addition, I would like to track down the descendants of my grandfather's (Henry's) brothers, Walter Pater and Eugene Pater (Walter used the alias Walter Miller) and fill in some missing information about my great-grandfather's sisters and their families.
Other Pater Families – The Family Organisation Pater in the Netherlands is led by Bram Pater. They have researched over 30,000 names in seven different Pater lines – including some in Poland (though not my own branch). If you can read Dutch, check it out!
Surname Message Boards – There is a rather inactive message board on Ancestry here.
Miscellaneous - The American Soundex code for Pater is P360 and the Daitch-Mokotoff Soundex Code is 739000. There are 386 individuals in the U.S. Social Security Death Index with the surname Pater (four are related to me – Elizabeth, Henry, Mae, and Eugene).
This post is #1 of an ongoing series about surnames.


text:
There is no legitimate reason why women can't be sushi chefs, but plenty of excuses and old wives' tales abound in the male-dominated world of raw fish. Here, we recount the top reasons given to us by men as to why women and raw fish don't gel:
5. Because women menstruate: In an interview with the WSJ, Yoshikazu Ono, the son of Jiro Ono who runs the three-starred Michelin restaurant Sukiyabashi Jiro in Tokyo, says:
"The reason is because women menstruate. To be a professional means to have a steady taste in your food, but because of the menstrual cycle women have an imbalance in their taste, and that's why women can't be sushi chefs."
4. Because women wear makeup and perfume: These interfere with olfactory senses when preparing sushi.
3. Because women can't handle the work: Sushi involves hard labor, including gutting and slicing fish, working long hours and taking the last train home.
2. Because women have smaller hands: That messes up the size of the nigiri (mound of rice upon which the fish is placed).
1. And the number one reason: Because women's hands are too warm, which makes the rice too warm.
Needless to say, all of these reasons are bogus, folks.
View a slideshow of Nadeshico Sushi in Tokyo. It is Japan's first sushi restaurant featuring a cast of female chefs.
Follow Mariko Sanchanta on Twitter _USER_
For the latest news and analysis, follow _USER_


text:
An orange day. A black day. A blue day. These are some of the colors the hero of this Dr. Seuss poetry program goes through, as the young boy and his dog experience the changing colors of moods. The Minnesota Orchestra provides the music that goes with these moods. Set to state-of-the-art animation, the orchestral arrangements perfectly reflect the changing colors and shapes that represent the changes people go through as they face the ups and downs of life. Narrated by Holly Hunter, the educational program is aimed at sensitizing children to their emotional lives and how music and color can affect them.
by Rose of Sharon Winter synopsis


text:
2017 PEDESTRIAN MODELLING & VISUALISATION SHOWCASE
DATE: 2017 | CLIENT: Internal
- High quality 3D rendered video
- High quality 3D rendered still images
- Utilising VISWALK for more dynamic pedestrian movements
- Advanced linking between VISSIM/VISWALK and 3D Studio Max
- Specially developed pedestrian models and animation
As part of the ongoing in house development programme, Multimodal built detailed 3D models based around three areas which had been previously modelled for traffic or pedestrian studies. These areas were:
- London Victoria station
- A London-based international sports stadium
- London Bridge
The original VISSIM models had to be thoroughly prepared by inputting VISWALK elements such as pedestrian areas, routes and obstacles.
There was also a need to develop and update the library of 3D models used for vehicles, pedestrians and cyclists, which meant remodelling all of the motion capture for animation and developing a new VISSIM and VISWALK library of objects based on these new models, allowing full linking between VISSIM and the 3D modelling and rendering package used.
Once this was achieved and fully calibrated, all network elements and animation were exported from VISSIM/VISWALK, and bought into the 3D modelling package, where simple geometry and transport models were replaced with detailed models to allow a more photo-real output.


text:
Journal of Archaeological Science doi:10.1016/j.jas.2009.11.016
Radiocarbon evidence indicates that migrants introduced farming to Britain
Archaeologists disagree about how farming began in Britain. Some argue it was a result of indigenous groups adopting domesticates and cultigens via trade and exchange. Others contend it was the consequence of a migration of farmers from mainland Europe. To shed light on this debate, we used radiocarbon dates to estimate changes in population density between 8000 and 4000 cal BP. We found evidence for a marked and rapid increase in population density coincident with the appearance of cultigens around 6000 cal BP. We also found evidence that this increase occurred first in southern England and shortly afterwards in central Scotland. These findings are best explained by groups of farmers from the Continent independently colonizing England and Scotland, and therefore strongly support the migrant farmers hypothesis.


text:
We report on the preparation of capacitive-type relative humidity sensors incorporating plasma-activated multi-wall carbon nanotube (p-MWCNT) electrodes and on their performance compared with existing commercial technology. Highly open porous conductive electrodes, which are almost impossible to obtain with conventional metal electrodes, are fabricated by spray-depositing MWCNT networks on a polyimide layer. Oxygen plasma activation of the MWCNTs is also explored to improve the water adsorption of the MWCNT films, by introducing oxygen-containing functional groups on the CNT surface. Polyimide humidity sensors with optimized p-MWCNT network electrodes exhibit exceptionally fast response times (1.5 for adsorption and 2 s for desorption) and high sensitivity (0.75 pF/% RH). These results may be partially due to their percolated pore structure being more accessible for water molecules, expending the diffusion of moisture to the polyimide sensing film, and partially due to the oxygenated surface of p-MWCNT films, allocating more locations for adsorption or attraction of water molecules to contribute to the sensitivity.
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering
- Electrical and Electronic Engineering