Input-Output Analysis: Foundations and Extensions

Finally, second edition of "THE" input-output analysis text book is out! I received my order from the UK. Since its first edition was published in 1985, it has been almost 25 years. Miller and Blair included many updates in input-output field.



In particular, they include SDA. I was a bit disappointed because the coverage of SDA was not that long (13 pages). Oh, well, long-waited new edition is here anyway, so I am glad. I am sure that this textbook can help many students and researchers in input-output field including myself.

Autopsy at the shore

When I went fishing yesterday morning, I found fish bones spread around at the shore. It was large fish. Nothing much left, but only white bones. My curiosity urged me to start my own autopsy.



Without skull, total length was 50 cm. Including skull, it might be about 60 something fish. Decent size fish. It seems like carp.



After taking the picture, I found its skull nearby, and it confirmed that it was carp. I carefully inspected the skull, but could not figure out cause of death. I expected to find fish hook at its gills. Considering size of the fish, it was tool young to die naturally. Carp's life span is 40 to 50 years. I didn't count rings at its ear bone, but it look like 5 to 7 years old.



What killed the carp?

1. Predator: there is pike in the Hudson river. I am skeptical about pike attack. Because there are plenty of small preys that pike munch on.
2. Pollution or disease: Possible. I have never seen a dead fish at the shore though.
3. Deep hooking: I think it is very possible. All fishermen are very careful not to hurt their catch when they release them. But sometimes, fish swallow hook, and it is fatal. From my experience, lure fishing has rare chance to deep-hook. I can set hook before fish eat the hook. But in case of bait fishing, there is greater chance of deep-hooking. To prevent deep hooking, I often use circle hook for bait fishing. I will write about circle hook in the future. For catch-and-release, we need to be more careful.
   

Lesson learned: drag setting for kayak fishing

Last Saturday, I went kayak-fishing nearby small lake. The lake, which is a famous fishing destination in this region, is always challenge to me: It is hard to catch a decent size fish. I thought clarity might be anissue: the lake is so clear that it is hard to fool fish. Thus, I decided to focus on deep section of lake where clarity is low. I used dark green color tube with 1/8 oz jig head. The result was successful. I could get continuous nibbles.

However, I could not firmly set hook or lost while fighting. It was frustrating. I solved one side of puzzle, but the other side still remains unsolved. Make long story short, the reason was at my drag setting of reel. I set drag as usual for typical lure fishing. But it was mistake. I should have set it firmly or set no drag. What I found was that because I was on freely moving piece of plastic, there was natural drag system. I didn't need to fiddle with my reel at all. Double drag system, my reel and moving kayak, made it harder to set hook and fight.

When I do not anchor my kayak, I will set no drag. It will help me to set hook. By the way, after realizing this, I nailed a largemouth bass. Not a monster, but it pulled my kayak around. It was a fun!

Sorry, no picture.

Weirdest fish ever, sort of...

I have been busy with summer internship, I went fishing regularly though. Mostly near my apartment complex, short trip. BTW, in May I passed candidacy exam, which is a milestone of Ph.D. program.

Yesterday evening, I went out carping at Hudson river. I used pre-made Premium Carp Bait strawberry. I have never caught carp with this bait. But keep trying. As an insurance, I cast catfish bait as well. Oh, boy, catfish are really active nowadays.

Anyway, after one hour of waiting, suddenly there was strong nibbling at carp rig. I did not rush giving enough time for carp to suck up the treble hook. Then, I set hook. To my disappointment, I could not feel the carp at the end of my tackle. But I could clearly tell that I had caught something. Tiny fish maybe?

When the small fish surfaced, I could see yellow color with black dots. It was ugly looking fish. I thought it might be Goby or some kind of invasive species. To my vast surprise, it was foul-hooked fish like swimbait!!! "Are you kidding me? How can I hook a swimbait with carp rig? Not even with other lure. Are there someone at the bottom of the river and meesing with me?" I could not stop questioning. Here is a picture of my catch.


You can see the treble hook is set on the belly of the swimbait. Foul hook!


Close shot. Black dots look like fungi. Kinda gross.


I have been fishing at the same spot with swimbaits. So, at first I suspected that it might be mine, but it turned out to be not. Considering the condition of the swimbait, it might be under water at least for one year. It has been de-colorlized, and hooks are rusty. But it still seems to be usable. :) What a productive catch! Just kidding, I will not use it.

After catching this tropy, I came back home without any success. Next time, I willl write some success stories.

First bass of this season!

I have been busy with school works and internship. This afternoon, I decided to make a brief fishing trip to the Hudson river, where I can walk in 5 minutes, and I caught my first bass of this season.



It isn't that bad as a season opener, is it? It was a 3 pounder. I used Powerbait's 3 inch Realstick. Yep, I am a big fan of swimbait.


Here is another shot of the fish, which shows whole body.



I wish it will be a good season for all!

DMZ in My Mind

Today I finished one short essay which I have been thinking about for 9 years. Yes, 9 years. It is about an incident that happened while I way staying in Vancouver, Canada. When you read it, you will know why it took so long. I put a link to the essay at Misc. Article section at this blog.

Dissertation Boot Camp

There was an dissertation boot camp at RPI during the last weekend. I participated in it in desperate hope. It was the best training session ever. The camp was informative and also motivational. I learned timed writing, writing skills and how to use writing support tools. Four faculties instructed 14 students for two whole days during weekend. I should have taken this program earlier; They just started it this year.

Useful Tools:

• Free Mind: It is a mind mapping tool. It has diverse functions. You should use it instead squible on a piece of paper.
  
• Zotero: It is a reference management software. There are bunch more functions, such as note taking. It works with Firefox or Netscape as a plug-in. At MS Word, you can cite while you type if you install plug-in for Word. If you hav not known it, you should give it a shot. I strongly recommend it. Plug-in for Open Office is here.
  
• Evernote: It is a note collecting tool. I found that Zotero also takes note as it does. Personally I prefer to use Zotero. But it has a nice function to save user's data on-line.
• OpenOffice: I was not a big fan of Open Office V.2. But version 3 is totally different. I found V.3 is very powerful in typing formula in document. Open Office can generate PDF file and even LaTeX file with. I can convert its document to MS word format, too. I think I will not go back to MS Word.
  
• LaTeX: I need this for math presentations and dissertation formating. Equation editor at MS words is too bad... What I will do is that first I do my word processing at Open Office, then convert Open document to LaTeX file. I can do final touch with LaTeX. If you are a RPI student, you can get LaTeX at RPI help desk.
  

What I found at the boot camp homepage. I found this funny:

WHEN TO CALL A FACULTY COACH

Junior professors, midcareer faculty members, and even the most seasoned of academics sometimes need help with managing at least one aspect of their careers. Here are a few signs of when you might need to give a faculty coach a call:

* You're mired in a departmental battle.
* You can only work under deadline pressure.
* You've allowed teaching and service work to take up all of your time.
* You're a chronic procrastinator.
* You start papers but never finish them.
* You're baffled by putting together a promotion and tenure portfolio.
* You can't find time to do research.
* You avoid writing at all costs.
* You're not clear on the expectations for tenure.
* You need help maintaining momentum.

SOURCE: Successful Academic, The Academic Ladder, Success in Academe
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How many of them describe you? In my case, um... 6 out of 10. Rest 4 are the cases of assistant professors. Deadline pressure, that's what I like...