Tuesday, December 2, 2014

Sea Cucumber Excrement Could Save Coral Reefs



Sea Cucumber Excrement Could Save Coral Reefs

Oceans around the world have been acting like carbon sponges for billions of years.

Oceans suck in huge amount of carbon dioxide and thus maintaining the level of carbon dioxide in our atmosphere. They act link a sink or deposit box for carbon emissions. But the continuous rise of carbon dioxide level due to anthropogenic activities causes the oceans to become acidic. Yes-even with 4 feet of snow in Buffalo in recent weeks, HUMAN KIND IS ALTERING THE ENVIRONMENT.  

Low water pH is detrimental to coral reefs and aquatic lives, annihilating delicate reefs and fish eggs. This acidic water also effects the calcification of corals, their growth and ability to buffer our shores from storms and tidal influences.

There is one creature that could help save the reefs-- the humble sea cucumber.

Sea cucumbers are echinoderms from the class Holothuroidea. They are marine animals with a leathery skin and an elongated body containing a single, branched gonad. Sea cucumbers are found on the sea floor worldwide. The number ofholothurian species worldwide is about 1,717with the greatest number being in the Asia Pacific region. Sea cucumbers serve a useful role in the marine ecosystem as they help recycle nutrients, breaking down detritus and other organic matter after which bacteria can continue the degradation process.
Like all echinoderms, sea cucumbers have an endoskeleton just below the skin, calcified structures that are usually reduced to isolated microscopic ossicles (or sclerietes) joined by connective tissue. In some species these can sometimes be enlarged to flattened plates, forming an armour. 
Image: animals.nationalgeographic.com
Image: seattletimes.nwsource.com

"When they ingest sand, the natural digestive processes in the sea cucumber's gut increases the pH levels of the water on the reef where they defecate," says One Tree Island deputy director, Professor Maria Byrne.

The excrement of this humble creature contains calcium carbonate (CaCO3), which is an essential component of coral.

"To survive, coral reefs must accumulate CaCO3at a rate greater than or equal to the CaCO3 that is eroded from the reef [by ocean acidification]," Maria says.

The waste also provides nutrients to assist coral growth.
One problem is the sea cucumbers are also threatened. Many of these are gathered for human consumption and some species are cultivated in aquaculture systems. The harvested product is variously referred to as trepangbĂȘche-de-mer or balate. If you ever saw an eviscerated sea cucumber you really have to wonder about the things people eat and like.....  But that is another entry. Given its role in coral conservation, we need to control sea cucumber harvesting to lessen the impact on reef health.

info: http://www.australiangeographic.com.au/journal/sea-cucumber-poo-could-save-great-barrier-reef-ocean-acidification-coral-one-tree-island.htm

Sunday, November 30, 2014

Research Is A Dangerous Business

When people talk about risk at work, they normally mean the risk of getting laid off, terminated, losing a business deal, and probably encountering some minor accidents like electrocution while charging their electronics. 

Unlike these risks, the risks you encounter during research are far more unpredictable because you work with unpredictable subjects; the weather (climate scientists), wild animals (zoologists), chemicals (chemists), toxic jellies (marine biologists), unpredictable monkeys (lab scientists) and sometimes, the product of your own research - worm holes and such (physicists). Even in social sciences, the research is often far more dangerous than your average nine-to-five job.
Research isn't your typical 9-5 job.
Image: www.the-scientist.com
One particular technique in psychology, called participant observation, involves taking part in the activities of those you want to study. For example, if you wish to study the drug cartel, you would need to actually get your hands dirty. Sociologist Mick Bloor, a professor at the Cardiff School of Social Sciences once ended up in a bar fight while studying male prostitution in Glasgow. Lorraine Dowler from the Pennsylvania State University was forced to flee when her interviewee became the target of a street-level assassination attempt. Social scientist Frank Burton woke up one morning to find a submachine gun pointed at him. The body of Ken Pryce was found washed up on a Caribbean beach after investigating criminology in Jamaica.

These are just of the few workplace hazards that face researchers at work. We have yet to include stories of marine biologists who have face sharks and other dangerous marine predators, zoologists battling malaria, herpetologists getting bitten by snakes, and conservationists and medical scientists battling fanatic animal-rights activists. All very real possibilities in the modern world.

In April 2013, an animal-rights group that calls itself Fermare Green Hill (or Stop Green Hill) occupied an animal facility at the University of Milan, Italy, at the weekend, releasing mice and rabbits and mixing up cage labels to confuse experimental protocols. Certainly makes a strong case for microchip IDS and tattoos. Researchers at the university said that it will take years to recover their work. Michela Matteoli, a neurobiologist who works on autism and other disorders and lost most of her own research in the attack, says that she found some research students crying in the disrupted facility on Monday morning. Many of the animals at the facility were genetic models for psychiatric disorders such as autism and schizophrenia.

study conducted in 1994 by Brian D Crandall and Peter W Stahl intended to investigate whether humans could digest bones. They trapped some shrews and after skinning and brief evisceration, they boiled one of the carcasses for approximately 2 minutes before swallowing it whole; head, limbs, body and tail. Without chewing. Talk about taking one for the team.

So it's very disrespectful for anyone to brush aside any researcher's project and label them as useless.


Research is not just for geeks. It's also for James Bond. 

Thursday, November 20, 2014

Tuatara Thursday

Tuatara holds clues to human evolution


 A recent paper in Journal of Heredity by Craig Lowe, David Haussler and colleagues at the University of California provides an excellent example of this in action, using sequences from the tuatara genome to identify the evolutionary origin of parts of the human genome.
Lowe and colleagues were looking for functional elements (like parts of genes and their regulatory regions) in the human genome that originated from retrotransposon insertions.  Retrotransposons are mobile bits of DNA that have a tendency to make copies of themselves and insert themselves in various different places in the genome.  They contain everything needed for this copying, plus often include functional modules like exons of genes, or transcription factor binding sites.  These functional modules may be co-opted for a new function in the new site, a process known asexaptation.  Once a retrotransposon is inserted in a new location it is often inactivated, and then begins to accumulate mutations which render it unrecognisable as a retrotransposon. This makes it difficult to identify exaptation events in any given genome and hence trace the origin of many of the functional elements of that genome.  However, by comparing the genomes of many different species in different lineages it may be possible to identify ancestral versions of these elements, and so trace their evolutionary history.
Lowe and colleagues found a previously unknown retrotransposon in the small part of the tuatara genome that has been sequenced.

This retrotransposon is of a type known as a LINE – Long Interpersed Nucleotide Element - and was named EDGR-LINE  (endangered-LINE).  A search of human genome against this sequence found 18 elements that are likely to be the result of insertion of this retrotransposon into the genome at some point in evolutionary time.  Seventeen of these elements are gene regulatory regions and one is an exon of a gene calledASXL3.  ASXL3 is important for regulation of other genes during development and the additional exon co-opted from EDGR-LINE appears to help control its expression.

These 18 exaptation events likely occurred early in mammalian evolution, but the retrotransposon itself has long since been inactivated in humans so all traces of it have been lost.  The functional elements it contained are able to be identified because they are under strong purifying selection (i.e. have not accumulated many mutations), so can still be aligned with the tuatara sequence.  Its only through this comparison that it is possible to know that these 18 elements originated from the same retrotransposon.
EDGR-LINE was also found in the lizard, frog, and coelecanth, but no traces of it remain in mammals, crocodylia and birds.  EDGR-LINE appears to be more slowly evolving in tuatara than in lizards, so is closest to the mammalian ancestral version of EDGR-LINE and hence more informative for identifying elements in the human genome. In fact, 10 of the 18 elements could only be identified by comparison with tuatara and not with these other species.

Evolution of the EDGR-LINE in vertebrates. The EDGR-LINE appears to have been introduced in the common ancestor of tetrapods and lobe-finned fish, and lineages where the LINE was active are shown with green. The LINE is not noticeable in mammals, crocodylia, aves, or testudines, so it has already been inactivated at least twice in evolution.
This is not the only example of genomic information from a rare species shedding light on the evolutionary history of human genome.  The genome of the threatened desert tortoise Gopherus agassizii also harbours an ancient LINE that has enabled functional elements of the human genome to be identified.  Lowe and colleagues speculate that this may be due to the very nature of endangered species, and ran simulations to show that theoretically, mobile elements like LINEs are active for longer and evolve more slowly in small populations.   This effect comes about because of the relationship between population size and selection – selection is more efficient in large populations so is more likely to remove genetic variants which are mildly harmful (or deleterious) to the organism, and to fix mutations which are beneficial.  The smaller the population, the more likely it is that deleterious genetic variants will become fixed in that population and beneficial mutations will be removed.  Insertion of mobile elements into new places in the genome is almost always deleterious, as it messes with existing genes and their regulatory regions.  Thus small populations will be more likely to accumulate additional copies of the mobile elements, and less likely to accumulate mutations which would remove or inactivate them.  I should point out here that tuatara are not actually classified as endangered (as the paper claims), but they have had a historically low population size, with probably a severe population bottleneck during the oligocene inundationof the New Zealand land mass.  In addition, we now know that even large tuatara populations can have a small effective population size, as few individuals actually contribute to mating at any one time.
Lowe and colleagues point out that without the tuatara, we would not have been able to identify these particular functional elements in the human genome, and that we never know what additional information about human evolution we might glean from threatened species in the future.  This underscores the importance of projects like the Genome10Kinitiative to sequence 10,000 vertebrate genomes.  Of course I would add that we should preserve these species for their intrinsic worth not just because of what they can tell us about human evolution, but this paper does highlight the unexpected ways that genomic data from diverse species can help us understand evolution.

Lowe, C., Bejerano, G., Salama, S., & Haussler, D. (2010). Endangered Species Hold Clues to Human Evolution Journal of Heredity DOI:10.1093/jhered/esq016

Sunday, November 16, 2014

Hair- what good is it?





Why Are We Not Hairy Like Other Apes?

We humans are dubbed the "naked apes" because, well, obviously not many of us have hairs all over our body. If evolution is true, we should be hairy like bonobos, no?
Image: fanpop.com 
Darwin said our ancestors discarded coarser hairs since it's warm like sauna out there on the savannah. And he suggested that we looked sexier without the hair covering our sexual features. Seriously though I can't imagine getting turned on by primates.

Contrary to popular belief, we aren't entirely naked. We do have hairs covering our body, and they are called the vellus hair. And we do have the same density of body hair as other apes of our size.
Image: http://www.squidoo.com 
In a study published in Biology Letters last year, Isabelle Dean and Michael T. Siva-Jothy from the University of Sheffield, UK wrote that fine body hair improves our detection of parasites.
They recruited 29 university students through Facebook, aged between 19 and 27 years for the experiment. Each participant had one of their arms shaved. The researchers then drew a rectangle of Vaseline on both their forearms, and while the volunteers looked away, the duo placed a bed bug within the rectangles.
Image: knifesharpeningtips.com 
Dean and Siva-Jothy found out that the participants took longer time to detect the presence of bed bugs on their shaved arm. Also, vellus hair made it harder for the bugs to find an ideal spot to suck on. On unshaved arms, the parasites took between 22 and 26 seconds to find a good place, compared to just 18-19 seconds on shaved arms.

The results showed that fine hair helped us to avoid falling prey to parasites. The researchers further highlighted that other blood-sucking parasites prefer to bite hairless sites on bats and the featherless areas of birds.

So now you know why mosquitoes always bite you at the relatively hairless underside of wrists and ankles.


Sunday, February 2, 2014

Why Don't Penguins Fly?


Because it's energetically-inefficient to be both a diver and a flyer at the same time. 

A recent study on a penguin-like seabird, the thick-billed murre, shows that it's inefficient to be both; be a Jack of all trade and a master of none.
This is probably how penguins flew several million years ago. Image: www.polartrec.com
Murres are horrible aviators. They beat their wings really fast and they land awkwardly. They fare better in the water, but still not as good as penguins.

The study, conducted by Kyle Elliot et al of the University of Manitoba, Canada, shows that when flying, murres burn energy at 31 times their rate at rest. It's the highest energy-spending rate known for bird. Other animals burn energy at 25 times their rate at rest when working the hardest. In the water, a murre also burn more energy diving compared to a penguin of the same size.
A group of diving murres. Image: travel.nationalgeographic.com
But flying has its own advantages. A murre can escape land predators taking to the sky while penguins, well, can only waddle like a penguin. That's why there are no penguins in the North Pole and no polar bears and arctic foxes in the Antarctic.

So in a way, a murre is the bridge between the flying and non-flying birds, though they're not especially good at both. Evolution is truly fascinating is it not?

Tuesday, November 26, 2013

Disaster Kit - for the home

Part of good disaster preparation is having a disaster kit.  One for home, work and vehicle.

There is no right set of 'stuff' for a disaster kit.  As there is no standard container to store it all in.  Some like the flexibility of a backpack, which exemplifies the concept of a "Go-bag", others like a large duffle, or even a plastic bin with supplies.  You can get rather flexible and make a multi faceted approach and have multiple levels of disaster kits and go bags to be prepared for the right response.

I will separate these kits into three different categories.  A shelter in place kit, a go kit- for the quick evacuations and an everyday carry kit.

Today I will discuss the shelter in place kit.


Shelter In Place:
This kit should consist of what you need to sustain your family for nearly any potential threat you deemed plausible in yesterday's threat analysis.  At a minimum food, water, medicine, clothing, important documents and means to sustain yourself for a minimum of 5 days.

Since this kit will most likely be at your permanent home, we can look at your options and have some additional flexibility.  Hurricane Sandy was an event that lasted for 10-14 days.  Some select folks were without power for 17 days.  Why not expand your selection to cover at least 2 weeks, if not 3 weeks.

Let me start with water.  As mentioned earlier, a good rule of thumb would be 1 gallon per person per day.  A family of 5 would need 5 gallons a day.  Don't forget the pets!  Now water weights about 8 pounds per gallon, so a day's worth of water for this family is about 40 pounds.  Not exactly portable. A 21 day supply of water is not exactly practical as well.  A twenty one day supply is over 100 gallons.  Some people will be able to have 2 55 gallon water containers in storage.  If you have the space and inclination two 55 gallon drums stored properly will provide you a solid 3 weeks of water for a family of 5.  For most space is an issue and storage of 105 gallon jugs or barrels is not always practical.  I always suggest having at least 35 gallons of semi portable water in hand in the form of 5 gallon 'water cooler' jugs and gallon jugs and smaller bottles. This will get you through the first week when disruption is presumably at its highest.  So where do you obtain the remaining 70+ gallons? There are a few options.  As the disaster unfolds, or the day before fill your tub(s) with water, fill large pots with water and other clean containers.  You can instantly create over 100 gallons of temporary storage in just a few minutes. Of course water in the tub must be sanitized before use.  They do make once plastic liners that store in a medicine cabinet you can deeply and fill your tub that reduces the risk of contamination, so that may be an option for those grossed out thinking of drinking from their tub.  As for filtration, a chemical treatment of 8 drops of bleach per gallon for 30 minutes works, as do ceramic gravity filters or micro pump filtration systems.  Each have pros and cons.  But clean water in a disaster is a lifesaver.  A rain barrel to collect run off, storage of tub water, and local collection are three viable ways to obtain more water.  The risk with local collection is contamination.  This water may have petrochemical and pesticide residue from recent storms or disaster events, may have high levels of bacteria and other contaminates.  It should be boiled and filtered and run through carbon before considered safe.

On to food.  Most people may have a variety of packaged foods, and canned goods in the house.  No one likes to go shopping daily for meals.  Take a look around and see what your working inventory is.  Then see what it takes to prepare it.  Will you have an over? Stove? Microwave? The realistic answer is not likely.  Without power your gas stove may operate, but in extreme disaster your gas may be off as well.  You may need to cook on an outdoor grill or camp fire.  Do you have the requisite utensils for doing this? One can make a simple block/brick outdoor oven with some bricks and/or cinder blocks, but if you do not have them set up beforehand they will do you little good.  A propane grill has a finite operating time and is only as good as the last time you filled it up.  Camp stoves have limited power and also require fuel on hand.  All are viable short and medium term solutions and are easy and common enough to have on hand.  Just be sore your camp stove has spare fuel, your grill is topped off and you have practiced and planned for use of a ire pit or make sift block stove outdoors.

The food you do have may still require additional processing.  Like a bender or refrigeration.  Those food items would generally be off the table.  But things easily prepared with water (from your supply), that require merely heat to prepare, or better yet no heat are ideal.  Since perishables will spoil rather quickly it is good to have some long life foods on hand.  Canned goods are excellent.  Just be sure to have at least 2 manual can openers!  Jar foods and home canned products are also excellent.  Keeping these items as part of your regular pantry and restocking when you use will ensure freshness and ensure they are products your family actually will eat.  It does you no good to stock up on 500 pounds of rice and peanut butter if your family hates both. Some typical good storage foods include canned vegetables, fruits, meats, and sauces.  With a nice pot of boiling water, dry pasta or rice mixed with a can to two from the pantry ca make a simple meal for a family.  A simple griddle over a fire and biscuit mix will allow for griddle cakes or similar even without dairy.

Along with your pantry storage have a dedicated supply of additional canned and dry products.  Include simple pleasures for kids and yourself like chocolate, granola bars, cookies as well.  But primarily focus on the nutritious foods and not junk.  These should get rotated at least annually an again be foods your family will consume.  For a family of 5 for 21 days consider at least 1 can of vegetables, fruit and meat/soup per day.  That is 15 cans of food per family per day. If you figure your pantry lasts 1 week, then you can gain another 7 days with 105 cans of food.  This sounds like a lot but you would be surpassed how much space it really takes.  A can of chicken, or corn is not huge.  They can be stored in crates in the basement or underneath beds or on the bottom of closets.  Ideally where they will not be exposed to excessive moisture, heat or cold.  You can get over 450 cans of food under a twin bed single stacked.  In slide out plastic totes you can store well over 1000 cans.  To round out your storage some bags of beans, rice, pasta and other 'dry' products can supplement any canned meals.  You can eat quite well and have plenty of variety using nothing but dry foods and canned foods. It may not be ideal for ever, but for the type of disaster we are preparing for it would sustain you just fine.

There is also long term food options.  Many companies make and sell freeze died, or dehydrated foods that last for 5-20 years.  These can be single ingredients or entire meals.  Some brands are better than others and some meals or combos work better than others, but they take minimal space and can feed your family well in an extended crisis. Also consider MREs.  These are not the C Rats of old, but are self contained, often available with chemical warming units, that provide a days or meals worth of nutrition in a vacuum sealed kit that stores for 3-7 years.  A case typically has 12 meals with 1200-1300 calories.  That one case which is a bit bigger than a shoe box could sustain your family of 5 for 2-3 days.  Not gourmet living nor as satisfying as a full meal but could get your though a rough patch before services are restored.

A combination of pantry items, dry goods, canned goods, long term storage and MRE make for a well rounded kit.  Be sure to have on hand items like beef jerky, granola bars, fruit (for vitamin C) and vegetables in cans and dry.  When local supermarkets hold can sales and the like you can stock up easily for a relatively low cost and be more prepared to weather out a disaster at home.

In addition to water and food you need to account for your shelter.  Your dwelling may have minor dame.  If it sustained more tun minor damage you may consider evacuation which will be covered later this week. Items to have on hand for your kit at home would include tarps, plastic sheeting, duct tape and half sheets of plywood.  These can easily and quickly path leaky roofs, broken windows and minor damage.Even the most tool inept can clumsily seal a window with plastic and duct tape.  For those more handy, your basic tools can offer more advanced quick repairs.  Just realize power may be out and your collection of battery powered drills, saws and such will not work for long.  A good old fashioned hand drill, hand saw and screw driver still have a place in this world.  Tarps and cord (any weather resistant rope or cord, many like 550 paracord as it has many others uses as well) can help create shelters or patch up existing ones.  I prefer grommeted tarps as they standup to wind and abuse better.  While your tool kits and disaster tool preps do not have to be with your shelter in place kit they should be accessible and identified in advance.

Personal items and medication and first aid  Every house should have a nice assortment of first aid items for everyday use.  If you don't then you are already behind the curve on this.  Basic materials would be bandages, sterile gauss pads and wrap, elastic bandages, antibiotic cream and ointment, lip balm, disinfectant, rubbing alcohol and assorted over the counter medications for  family to treat pain, fever, allergy,  cough and cold as deemed appropriate.In addition a dedicated kit should go with your disaster supplies.  It should contain all of the above in addition to some more robust bandages. You may not have 911 service immediately after a disaster, so the more severe lacerations or even a fracture may have to be dealt with at home.  Having additional gauze wraps, bandages, trauma pads, cardboard and foam splits and triangular bandages should be in the kit.  Also a huge factor is mental preparedness and training.  At the absolute minimum have a good book on first aid in your kit.  You can learn as you go.  But be proactive and take a first aid and CPR class.  Better yet get First Responder, CERT or EMT training.  You can be a valuable resource to your family and community that way. Different levels of first aid and medical kits will be covered in another day.


We have now covered water, food, simple shelter and simple first aid items.  Next is clothing.  In the northern climates be sure you have plenty of warm clothes and blankets.  You may find yourself without heat for days to weeks.  Thermal undergarments, layers, sweaters, head covering and goo socks all will make life more comfortable.  In more hot climates loose fitting yet protective garments is critical.  Related is loose clothing that protects against insects.  In a serious disaster the insect population may spike and your risk the spread of disease. Protective clothing to minimize mosquito and other biting insect access and good bug spray are a must. A comfortable person is far more mentally prepared to die out adversity than a cold/hot miserable person.

Most of these items you may already possess.  Take the time to inventory your food, water, medical supplies and tools and have a plan as to where you can store more and gather the essentials together for your shelter in place kit.

Do not forget important documents.  A USB key of scanned important documents is great, but also copies or even originals of wills, insurance papers, power of attorney, passports, birth certificate, etc should be protected yet available for immediate access in the vent of evacuation.  I like to scan all of these documents including banking and credit card info and keep an encrypted USB stick and have my copies/originals as needed in water proof sealed bags ready to go.  A simple fire rated safety box can protect them from fire and water, especially of they are double wrapped in sealable document bags and is easy to grab and go should you need it.  Redundant off site storage is valuable. Scans of less critical items can be stored in secure 'cloud' space, safe deposit boxes (keep in mind you do not always have access here) and with trusted family members in different geographic regions.

Last for this topic is communication.  As cellular and land line and internet may be disrupted, especially locally and for incoming calls yo need a communication plan.  An out of state/area person of contact is a great idea.  Make someone or someones outside your local area a point of contact.  You need to get word to them and they will disseminate this info to all other friends and family.  Arrange these numbers to be shared in advance.  Be aware in this digital age cell phones are more common than land lines.  In all likelihood both types of phone will be disrupted for various reasons.  Land lines are vulnerable to physical pole and line damage from high winds; cellular systems are easily overloaded and require constant owed as does your handheld phone.  Cordless phones will not work without power, so have a back up corded phone s well.  For family locally that are out and about like at a job or offsite when disaster hits make pre planed methods of contact.  Be it the outside contact person or other pre arranged method.  For example, if a is aster strikes and I am commenting I will try to make contact between 4-5 PM and again 9-10 PM or every 5 hours until you get through.  This helps alleviate some fears if someone cannot get in touch immediately and you know when to expect communication so you can spare battery powered devices until those windows.

This information is all disaster prep 101. Preparations can get far more involved and have layers upon layers of contingencies.  Before we get to those levels we need to ensure the basics are covered.

Monday, November 25, 2013

Planning for the unknown

This will be part of a series of articles dealing with preparedness.  With winter storms approaching much of the Eastern US and a holiday weekend approaching it is a great time to review basic concepts for being prepared.

Whether you believe in a zombie apocalypse or just want to be prepared for the next large scale power outrage, having a plan and some basic items is critical.  What you basic needs are doesn't change and many of the basic three - food, water and shelter are rathe generic for any type of disaster.

Your first step is to take stock of your potential threats.  I call this the threat analysis.  Every location is subject to a different threat analysis. I like to break this down further into natural, man made and technological disasters.  Natural would be anything like hurricanes, wildfires, floods, tornados, earthquakes and the like.  Man made could be as simple as a car hitting a critical utility pole, to a terrorist attack consisting of a dirty bomb, to a civil unrest and riot situation.  Technological can be caused by either of the previous two types but lies more in a failure of critical infrastructures and technologies we all depend on.  Examples include cell phones, electricity and running clean water.

Hurricanes Katrina, Sandy and Irene all have taught us not to take for granted getting 'help' quickly and how severe the damage may be.  Those living with the risk of tornado or earthquake know all too well how quickly it can all change in mere seconds.

So a few reminders.  Our government- both local, county, state and federal have some responsibility to managing disasters, responding to them and providing support from them.  We as citizens cannot wholly rely on them to support us.  For a host of reasons, aid may be delayed by hours, days or even weeks.  While your issue is the center of your world, there are hundreds of other immediate situations and limited resources to deal with them all.  Even a simple winter storm can delay critical services like EMS, fire and police response.

Threat Analysis
Identify most common disasters that occurIdentify possible hazards with most severe impactConsider recent or historical impactsIdentify susceptible locations in the community for specific hazardsConsider what to expect from disruption of services

From this you can start to develop a plan of what you need to keep you and your family protected. You may have a zombie defense plan or merely weather related plans, but should the unexpected happen, any plan will benefit you and your family. You should now develop a disaster plan.  This is a written plan detailing the basics of what you need to do for the various threats you felt needed to be addressed.  Some questions to ask are:
Where will you meet family members? Who is your out-of-State check-in contact?Will you have an extended stay? Shelter in place? Evacuate?How will you escape your home? Workplace? School? What route (and several alternates) will you use to evacuate your neighborhood?Do you have transportation?Did you practice your plan?

These are just some basic questions to ask yourself.
Consider special needs cases like sick and infirm, chidden, elderly, and pets.  These factors should be tarn into account. You should have easy access to important documents like passports, wills, banking information, property lists, insurance papers, mortgage documents, birth certificates, etc.  Often a digital and encrypted off site storage can provide an excellent backup.  Do not rely on home protection alone, or even keeping them in a safe deposit box.  In a large scale disaster that safe deposit box may be unavailable. 

The three main killers in a disaster are shelter, water and food.  You cannot survive long without all three.  You can plan to shelter in place - your home or apartment, but you have to have backup plans in the case of home loss, or having to evacuate.  Your vehicle is another shelter in place option.  Getting stuck in the snow along an interstate with 3 kids is a problem.  For an hour or two you may just have some frayed nerves.  For 8 hours you have real needs for bathroom, food and possibly medical needs.

The first step after your disaster plan is your disaster kit.  Keep one in your home, vehicle and place of business.  The primary and most extensive should be the one in your home.
 1. Important documents and cash.
2. Water - 1 gallon per person per day for 5 days minimum.
3. Means of filtering additional water and storage. A simple hand filter, bleach, etc.
4. Non-perishable food for the family for 5 days minimum and means to prepare it.
5. Season and disaster specific clothing and footwear.
6 Medications and personal items.
7.Battery powered flashlight and radio with spare batteries
8. First Aid kit
9. Signal Whistle for help
10. Dust mask, heavy gloves
11. Wrench and simple tools to turn off utilities and perform basic functions
12. Manual can opener
13. Written disaster plan with contact numbers
14. Something to do - books, dominoes chess.

Keep in mind the Katrina disaster lasted for week.  Hurricane Sandy lasted for days before services returned to normal. 

Ask yourself could you and your family survive with no power (including heat, water, refrigeration, etc.) for the next 7 days? What if you couldn't purchase any goods for the next 2 weeks? This is possible if there was an infrastructure problem or computer problem with the Nation's telecom and payment processing.  Hurricane Sandy was cash only for a full week in most places.  If the local grocery store and pharmacy couldn't accept debit or credit cards would you ave cash on hand?

These are just some simple questions to make you think and start planning.  Subsequent posts will detail more specifically what steps you take to get on the road to basic preparedness levels.

FEMA suggests the following at a minimum:


FAMILY SUPPLY LIST

Ready Kids & The Federal Emergency Management Agency present:
Family Supply List
Emergency Supplies:
Water, food, and clean air are important things to have if an emergency happens. Each family or individual's kit should be customized to meet specific needs, such as medications and infant formula. It should also be customized to include important family documents.
Recommended Supplies to Include in a Basic Kit:
- Water, one gallon of water per person per day, for drinking and sanitation
- Food, at least a three-day supply of non-perishable food
- Battery-powered radio and a NOAA Weather Radio with tone alert, and extra batteries for both
- Flashlight and extra batteries
- First Aid kit
- Whistle to signal for help
- Infant formula and diapers, if you have an infant
- Moist towelettes, garbage bags and plastic ties for personal sanitation
- Dust mask or cotton t-shirt, to help filter the air
- Plastic sheeting and duct tape to shelter-in-place
- Wrench or pliers to turn off utilities
- Can opener for food (if kit contains canned food)
Clothing and Bedding:
If you live in a cold weather climate, you must think about warmth. It is possible that the power will be out and you will not have heat. Rethink your clothing and bedding supplies to account for growing children and other family changes. One complete change of warm clothing and shoes per person, including:
- A jacket or coat
- Long pants
- A long sleeve shirt
- Sturdy shoes
- A hat and gloves
- A sleeping bag or warm blanket for each person
Family Supply List (continued)
Below are some other items for your family to consider adding to its supply kit. Some of these items, especially those marked with a * can be dangerous, so please have an adult collect these supplies.
- Emergency reference materials such as a first aid book or a print out of the information on www.ready.gov
- Rain gear
- Mess kits, paper cups, plates and plastic utensils
- Cash or traveler's checks, change
- Paper towels
- Fire Extinguisher
- Tent
- Compass
- Matches in a waterproof container*
- Signal flare*
- Paper, pencil
- Personal hygiene items including feminine supplies
- Disinfectant*
- Household chlorine bleach* - You can use bleach as a disinfectant (diluted nine parts water to one part bleach), or in an emergency you can also use it to treat water. Use 16 drops of regular household liquid bleach per gallon of water. Do not use scented, color safe or bleaches with added cleaners.
- Medicine dropper
- Important Family Documents such as copies of insurance policies, identification and bank account records in a waterproof, portable container

That is a minimum recommendation.  A longer shelter in place situation would require additional food and water. Following a disaster it may be many days before basic services are restored.  And while helpers may start up in your area, wouldn't it be preferable to shelter in place at home?




Sunday, November 24, 2013

Ode to a Jellyfish

Ode to a Jellyfish 
I was stung by your beauty today,
Ardour and ache so hard to convey,
Traps focused to invisible shrill,
Left stopped shaky stunned wonderstruck still.
A rose's thorn bites with its pressure,
No life exchanged with feel inside her,
But you, adrift, Brownian at sea,
Mingled a wave from your soul with me,
A toxic quiver 'leased in my veins,
With more blitzlieb than Cupid's best pains.
I shall ever aftertaste that fruit,
Forbidden me, this clay plodding brute.
Such passion, even before my eyes,
Spied perfections of form make their rise.
Your sphere. Osmotic. Undulant. Pure.
Blue angelwing glow, ascendent lure,
Lemniscate patterns traced 'cross your top,
Distractive grace of tentacles drop.
Injured, I should have swum for the beach,
But all, I confess, longed deeper reach.
Would I trade away a life for this?
One parlous tryst? One undersea kiss?
Aether's flesh charge up me become you,
Feed me your venom, philter and dew,
Come love me in poison that livens,
Come drown me in potion that drunkens.
When lovers love, with eyes the eyes gaze.
A touch touches touch, as two skins graze.
To smell one other's smell, nose rubs nose.
To taste all that tastes, another kiss flows.
But while I float with your drifts'n hovers,
We're giv'n no chance to tread as lovers,
Eons have left us no sense we share,
No kiss, no caress, no word, no stare.
Oh, to've met you on earlier sand,
'Fore mammals betrayed water for land,
Epochs where such a love might carry,
Embraced in lost time's station'ry tarry...
No such strand, alas, hath destiny,
To rend me from Land and you from Sea.
Still, I'll build castles of sand, and more,
Kingdoms for you! I wait on the shore.


James Clarage; Beachhouse; Crystal Beach, Texas; August 30, 1992.

clarage@rice.edu

Friday, November 22, 2013

Trematode: A Penis-Eating Parasite


There are many things in this world you do not want to encounter. For example the Candiru fish which lodges inside the urethra. Or perhaps something nasty like Ebola.  Some parasites live in the mouth - think Isopods in the mouth or tongue, or parasites in the intestines.

Today, I'm going to write about another parasite that eats not the tongue, but--get ready to cringe, guys--phallus.

Fortunately for us men these parasites prefer the penis of a type of sea snail called whelk.
A whelk. Image: http://en.wikipedia.org
Tremadotes are small parasitic flatworms that use molluscs as their intermediate hosts to reach their definitive host, the vertebrates. And once they end up in a molluscs, for instance a whelk, they will start chomping away the entire whelk gonad while waiting for a fish, for example an Atlantic cod, to devour the whelk. Thus passing along the life cycle to begin all over again.

In April 2000, a group of scientists from Canada decided to evaluate the impact of the parasites on the population of whelks in the northern gulf of St. Lawrence. The study--led by scientist Francoise Tetreault--involved collecting and dissecting 600 whelks and looking at their gonads, and compared the size of their gonads with the distribution of parasites.

The researchers discovered that there were 23% female and 15% male whelk whose gonads were affected. The parasite infected the digestive system as well, but 97% of the infected whelks had their gonads covered by 90% of the parasite.The parasite munched away a large portion of the male penis and changed the once bright color of the female gonad into pale grey.
Picture (B) shows an uninfected whelk. Its penis is labelled as "P".
Picture (D) shows an infected whelk. Look at the "P", and the whelk's sad face.
Awwww.... 
Picture (A) shows the gonad(G) and digestive system(DG) of a female whelk.
Pciture (B) shows the pale grey gonad of an infected female whelk.
Luckily for us there is no parasite that loves eating human penis, just living inside for a while. As for the whelks, they can only watch helplessly as the trematode feasts on their manhood.
Sucks to be a male whelk.But also goes to show you there is always something bigger in the ocean to eat you, and if its not bigger, then its smaller and will still eat you.