Category: science kits

Monday, 20 May 2013

07:40 – I’m going to have to have a talk with the management at Brian Center. Barbara and Frances are very upset because the clothes they take over there for their dad keep disappearing and he ends up wearing donated clothes from their common supply. I know what’s going on. Dutch needs to be changed frequently, so they put on whatever they have available and send the dirty clothes to their own industrial laundry. If some of Dutch’s clothes are in the batch, they end up mixed in with all the others and instead of being returned to Dutch they end up in the common pile and distributed to other patients in the facility. But I understand why Barbara and Frances are upset; they keep buying new clothes for their dad, and those clothes keep disappearing. So I’m going to tell management that, although we appreciate them providing additional clothes for Dutch as needed, we really want them to put all the dirty clothes in plastic bags that we provide and leaving them for us to collect and launder.

Our stock of biology kits is getting perilously low. Barbara labeled a bunch of containers yesterday, so today I’ll work on filling those. Once I finish that, I’ll start making up subassemblies for 90 more biology kits.


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Saturday, 18 May 2013

09:41 – Barbara’s mom seems to be doing pretty well. Last night was the first she’d spent alone since she got out of the hospital. Barbara and Frances are arranging to have someone come in for a couple hours three or four times a week to help her with laundry, cleaning, and so on. But they’ve made it completely clear to Sankie that she’s going to have to make it on her own. No more having someone with her 24 hours a day. Unfortunately, Dutch isn’t doing well at all. I cringe every time the phone rings.

We’re hoping that today will be a relatively ordinary day. Barbara is out cutting the grass right now, and I’m doing laundry. She’s going to go over to visit her dad this afternoon. I’ll go with her if she wants me to. Visiting Dutch isn’t easy for me and of course is even harder for Barbara. The last two or three days when I visited, he just sat there unresponsive most of the time. When he did speak, I couldn’t understand most of what he said and I got no sense that he understood anything I said. Frances and Sankie visited Dutch last night. Barbara talked later to Frances, who said that Dutch was so deeply asleep when they arrived that they couldn’t wake him. When they did, he was talking nonsense for a while, but he did eventually start talking and acting normally for a while at least. I told Barbara that that reminded me of my father toward the end. He was generally non-responsive, but when my brother drove over from Raleigh to visit, my dad would intentionally try to act and speak normally and would tell my brother that he was fine. As soon as my brother left, my dad would immediately drop back into his non-responsive state. Dutch is behaving the same way, telling people that he’s not ill and that he’s going to get his strength back and return to live with Sankie at Creekside. Obviously, that’s not going to happen, but I think Dutch actually believes it will.


13:50 – Barbara is out running errands and visiting her dad. I’m finishing up the laundry, printing container labels, and putting together purchase orders.

We’re down to about 4,000 bottles in stock. With about 1,800, we’re in good shape on the 30 mL wide-mouth pharma packers, because we don’t use them in large numbers. Depending on the mix of kits, 1,800 is enough for something in the range of 350 to 600 kits. We also have 1,000 or so of the 30 mL amber glass bottles on hand, which again we use in relative small numbers. But we have only 1,100 of the 15 mL PE bottles, which we use in very large numbers, and we’re completely out of the 30 mL PE bottles, which we use in numbers about half as large as the 15 mL ones. So I’m cutting a PO for 4,400 more of the 15 mL and 3,000 of the 30 mL, along with caps for them.

It’s time to stop screwing around with making up only enough for 30 or 60 sets of chemicals or small parts bags. Other than chemicals with relatively short expiration dates (such as the Kastle-Meyer reagent in the forensics kits), we’re going to start making up stuff in batches sufficient for 90 to 180 kits at a crack.

That also means I’m using some different suppliers. For example, until now, I’ve been buying multiple bottles of methylene blue stain from one of our regular suppliers. That vendor carries only 10 g bottles, which is sufficient to make up one liter per bottle of stain powder. So this time I’m going with a vendor that carries methylene blue stain in 100 g bottles. That’s sufficient for 10 liters, or 667 kits’ worth. I may make up only four liters at a time, but at least I won’t have to keep track of how many small bottles of the stain I have on hand.

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Thursday, 16 May 2013

08:09 – Barbara just left for work. She’s staying with her mom tonight, so Colin and I are on our own. She and Frances have emphasized to their mom that she absolutely, positively has to be able to get along on her own at the apartment, because they can’t continue keeping her company 24×7. Tonight is Barbara’s last night over there. Frances may or may not stay with Sankie tomorrow night. But, one way or another, Sankie has to be able to deal with living on her own, or the only alternative will be to transfer her to an assisted-living facility.

Barbara’s dad is not doing well. We stopped over to see him late yesterday afternoon to take him some more clothes. He was asleep when we got there, and Barbara wasn’t able to wake him, despite touching him and speaking loudly to him. Dutch had been to visit the doctor earlier that day, and the doctor told them it was time to have him transferred to Hospice. The problem is, Dutch doesn’t believe he’s ill. To add to the congestive heart failure and kidney failure, he now has a UTI.

Meanwhile, kit sales are booming. We shipped six kits yesterday, and are averaging just over three kits per day for the last week. Our stock of finished kits is dwindling. We’re down to under a hundred kits of all types in stock, so it’s time for me to start issuing purchase orders for more components. If I have time this afternoon, I’ll start filling more bottles and making up some chemicals.


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Wednesday, 15 May 2013

10:57 – Barbara is taking the day off from work. She stayed at her parents’ apartment last night to keep her mom company, and says that Sankie is doing well. She’s taking Sankie to a doctor’s appointment this afternoon and then coming home. Colin will be delighted to see her. It’s very hard on him when she’s gone overnight.

Yesterday afternoon, I had the new system pretty much ready to go. I almost shutdown the old system and pulled it off my desk. I’m glad I didn’t. When I came into my office this morning, the display on the new system was black with a blinking white cursor at the top left corner. The system now refuses to boot. It just comes up to that blinking white cursor. Fortunately, my old system is still connected and working. In fact, the Ethernet problems appear to have resolved themselves, and it’s now working perfectly. I really, really hated Kubuntu 12.04 anyway. I may just re-install everything on Ubuntu 12.04 and suffer from its horrible interface. It can’t be any worse than the horrible Kubuntu 12.04 interface.

Kit sales are on the rise. We’ve shipped four kits so far today, and with the month half gone our MTD sales are already more than twice those of the whole month of May 2012. Given that more than 90% of total May 2012 sales were in the second half of the month, this may turn out to be our biggest month so far in 2013. I’d better get back to work on building more kits. We’re down to less than a hundred in finished goods inventory.


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Monday, 13 May 2013

09:33 – Barbara’s mom is being discharged from the hospital today. She and Frances are going to get her back to the apartment at Creekside, but Sankie really isn’t ready to be on her own yet. Frances will stay with Sankie overnight tonight, and not leave tomorrow morning until the person they’ve hired to sit with Sankie during the day arrives. Barbara will head over there after work to relieve that person and stay with her mom Tuesday night and Wednesday morning, until someone arrives to relieve her. Then Frances will take Wednesday night, and so on, until Barbara and Frances are satisfied that Sankie will be okay on her own. It’s a question of physical rather than mental issues. Sankie is doing fine mentally, and wants to be back at home in the apartment, but she’s still extremely weak and terrified of falling. Barbara and Frances are taking her by the medical supply place on the way home to get her a walker, which should help a lot. I also encouraged Barbara to look into lift chairs while they were there. A lift chair is an immense help to someone in Sankie’s condition.

Meanwhile, with Barbara and Frances both fully occupied taking care of their mom, I’ll be visiting their dad in the Brian Center nursing home. Barbara visited him yesterday and said that he pretty much completely ignored her. He wouldn’t speak to her. This is nothing new. Dutch for the last couple of weeks has been very short with Barbara and Frances. I suspect he blames them for being in the hospital and then the nursing home, rather than back at the apartment where he really wants to be. Unfortunately, I think that’s very unlikely to happen. It’ll surprise me if Dutch ever recovers enough to move downstairs to the assisted-living floor at Brian Center, let alone moving back to the apartment. And Sankie really doesn’t want Dutch at the apartment. She can’t take care of him and she knows that, and she’s terrified that he’ll drop dead before her eyes.

Science kits continue to sell well. We’ve already shipped three today, and sales for this month are on track to be three to four times sales in May 2012. Until now, we’ve been building kits in batches of 30, but I think we’ll ramp that up to batches of 60.


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Friday, 10 May 2013

08:26 – Barbara’s dad arrived at the Brian Center nursing home just before lunchtime yesterday. I stopped over to see him as Barbara was helping him get settled in. He’s currently on the second floor, which is the skilled-care (nursing home) floor. We’re hoping that he’ll soon be well enough to move downstairs to the assisted-living floor. The Brian Center is one of the best-rated facilities around here, which is why we chose it for my mom when we had to move her to a nursing home. That was 10 years ago, and the place doesn’t seem to have changed much. A few of the staff from back then are still there.

One of the things I found most impressive about the place is that there’s no odor. Not only no urine odor, but no pervading smell of disinfectants. The place just doesn’t smell at all, which is very difficult to accomplish in a nursing home. There are plenty of staff, and they’re all friendly. Dutch was eating lunch when I arrived, and he said the food was good. And, of course, the place is only a couple miles from our house, so it’s easy to get over there for frequent visits.

While we were there, I asked one of the senior staff members about something that had been bothering me. When my mom was at Brian Center, she had an extraordinary nurse, whose name I couldn’t remember. It was LaToya. LaToya was a delightful young woman, and my mother loved her. She was 23 years old, and a single mother of a toddler. One day, she wasn’t at work. Nor the next, nor the next. We asked about her, and were stunned to learn that she was in the hospital and not expected to live. Shortly after, we learned that she had died of a rare genetic condition. My mother was inconsolable, not just because LaToya had been her favorite nurse, but because LaToya was only 23 years old and left a young toddler motherless. I couldn’t believe I’d forgotten her name. She deserves to be remembered.

Colin was due for his annual checkup, so around 4:15 we headed off to the vet, making a stop at Dutch’s apartment on the way to pick up some stuff for him. The traffic was hideous, as always, but we managed to make it out to Clemmons in time for the 5:15 vet appointment.

Our vet is Sue Stephens, and we’ve been taking our dogs to see her for about 25 years. She originally had her own practice not far from us, but 15 years ago or more she sold her practice. She’d signed a non-compete that restricted her from practicing near her old practice, and she ended up working part-time at a practice out in Clemmons. Driving out there is a pain in the ass, but Sue is the best vet I’ve ever known, and we considered it worth the hassle to continue seeing her, particularly when we had older dogs with more health problems.

So, we got out there and, as always, the first thing was to get Colin on the scale. The scale wasn’t cooperating very well, refusing to settle at 0.00 even when tared. On the first attempt, Colin weighed 85 pounds (~ 39 kilos). On the second, 81 pounds. On the third, 82 pounds. I stepped on the scale, which said I weighed 203.4 pounds (~ 93 kilos). So, we concluded that Colin likely weighs somewhere around 83 pounds. Sue wants to see Colin down to 68 pounds, which we think is ridiculous. He’s not fat now. At 68 pounds, he’d look anorexic.

I asked Sue if there was any factual basis in terms of morbidity or mortality for the recommended weights vets use for dogs. There apparently isn’t, other than one study Purina did many years ago, in which they apparently didn’t bother even to define their terms. I told Sue this reminded me of the recommended weights physicians use for people. Morbidity/mortality is significantly lower for people who are “overweight” versus those who are “normal weight”, which pretty definitively establishes that so-called “overweight” is in fact the proper weight and what they define is “normal weight” is in fact underweight. And any normal person looking at Colin would not think he was too heavy. We’re not going to make any significant changes to his diet unless and until he actually starts to look chubby.

Nor me, for that matter. On our wedding day, I was 30 years old and weighed 238 pounds. Over the last 30 years, and particularly over the last 5 or 10, my weight has been gradually decreasing. It’s not that I’ve been trying to lose weight; it’s just that I eat less and less as I get older. As I said to Barbara yesterday, I’m now almost down to my tennis-playing weight of 185 to 190, and maybe I should take up the game again. I quickly assured her that I was only kidding. With vertigo affecting my balance and some arthritis in my hands, there’s no way I’d even attempt it.

We’re on schedule to start shipping the LK01 Life Science Kits on Monday. There are 30 of them on the assembly table right now that are nearly complete, missing only a few components. We’ll finish them up this weekend.


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Thursday, 9 May 2013

09:49 – Barbara just left for the hospital. They’re discharging her dad this morning and transporting him to the Brian Center nursing/rehab facility. It’s one of the best ones available, and it’s where my mom lived for a year before her final illness. It’s also only about a mile from our house, which’ll make it a lot easier for Barbara to visit. Barbara’s sister works not far from it, so it’ll be easy for her to visit as well. No word yet on when Sankie will be released, but it may be this weekend. She’s recovering well, emotionally as well as physically, and told Barbara she wants to go back to their apartment at Creekside Retirement Village. Once she’s off the IV antibiotics, I’m sure they’ll be taking her home.

I was getting low on pipe tobacco, so I ordered five pounds (2.3 kilos) yesterday. It’s a Dunhill My Mixture 965 clone, and it cost me about $27/pound, with free shipping. Years ago, I used to smoke the real Dunhill 965, but Dunhill hasn’t actually produced it for many years. Instead, they license out the name. They’ve done that serially with two or three different manufacturers over the years, and it’s never been the same as the original stuff. The clone I ordered is actually better than the branded stuff from the current manufacturer, which costs about twice as much as the clone. The vendor was backordered for a couple weeks on the clone 965 product, which is fine. I always reorder when I get down to my last pound, and five pounds lasts me about seven months.

While I was on the phone with the vendor, I asked the guy about the possible new taxes on pipe tobacco. He said they were following the matter, but had no real idea if or when these new taxes would come into play. I’ve heard numbers as high as $100/pound in new taxes, and told the guy they needed to keep their mailing list updated on when these new taxes would come into effect so that we could stock up before the price skyrocketed. I also told him that I was in North Carolina and if it really came to that I’d just start growing my own.

Since I was making phone calls anyway, I decided to call DMV to make an appointment to renew my driver’s license, which expires next month. After getting busy signals several times, I finally got through and told the guy that answered that I wanted to make an appointment. He said “just a moment” and put me on hold. Eighteen minutes later, the call disconnected. So I called back, getting busy signals several times, and finally got a person on the line. I told him I’d been dropped after 18 minutes on hold. He apologized and … put me on hold. Fortunately, this time someone picked up after about 15 seconds and made the appointment for me.

I was on a roll, so I decided to call Time-Warner Cable tech support and see if they could do something about the Internet problems we’d been having for several days. They’d gotten much worse by yesterday, and I ended up connected to a nice young woman, who said that my modem had been up for six months and needed to be reset. She verified that we had Internet service and basic cable TV. She said the modem was a TWC Internet + VoIP modem. I explained that we formerly had VoIP but no longer had it. She said, “So you’re talking to me on a phone?” I said, “Yes, but …” She said “I’ll reset your modem now.” I continued “we’re on a third-party VoIP service so if you reset the modem you’ll kill our call”, but I was talking to dead air. I looked down to see the modem lights resetting. Oh, well. The reset worked, and our Internet is now running normally.

I managed to get 30 sets of the LK01 Life Science chemical bags made up yesterday, and 30 sets of the small parts bags. Today I’ll assemble shipping boxes for them and get some finished kits built. Then I’d better start on a new batch of biology kits, because we’re down to 20 or so of those in stock.


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Wednesday, 8 May 2013

09:13 – We’re in reasonably good shape with regard to finished-goods inventory on our current science kits, with 70 or 80 assorted ones in stock. Over the next couple days, I’ll make up 30 sets of chemical bags and small parts bags for the LK01 Life Science kits. This weekend we’ll build the shipping boxes and assemble 30 LK01 kits to be ready to start shipping them Monday.

With both parents still in the hospital, Barbara and Frances are still waiting to find out when they’ll be discharged, and where they’ll be discharged to. It’s pretty clear that Dutch will have to be discharged to a nursing home, but there’s no way to know which one because it all depends on which nursing homes have a bed available at the time he’s discharged. We’re hoping that Sankie will be well enough to return to their apartment at Creekside, but we won’t know that for sure until she’s ready to be discharged.


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Tuesday, 7 May 2013

08:11 – With Barbara’s mom and dad both in the hospital, she and Frances are even busier than usual. They expect Dutch to be discharged late this week, and are looking at assisted-living facilities to decide which are acceptable to have Dutch transferred to. Their mom is being treated for a lung infection, and they’re not sure at this point how long she’ll be in the hospital or whether she’ll be going home to the apartment or will need to go to an assisted-living facility for at least a while. We’re hoping that Sankie’s outlook will improve sufficiently that she’ll be able to return directly to their apartment.

I’m busy putting together subassemblies for a first batch of thirty LK01 Life Science Kits. At this point, it’s all a matter of assembly except that we’re out of stock on bottles of methyl cellulose. I have two liters of that made up, but none bottled. The second bottle-top dispenser I ordered arrived yesterday, so I just need to get some bottles filled. We announced that the LK01 kits would begin shipping the week of 26 May, but we may in fact have them ready to start shipping as early as next Monday.


11:00 – One thing I didn’t think about when we decided to start building and selling science kits is the amount of physical labor involved, particularly as our sales ramp up. I just hauled four cases of goggles downstairs and stacked them. On the return trips upstairs, I’m hauling up finished kits, five at a time. I have about four dozen kits to haul up and more stuff to haul down. And UPS should show up today with a couple cases of 144 glass beakers and several cases of 100 mL graduated cylinders. If I catch Don as he pulls up, I’ll ask him to roll those crates around back to save me having to carry them downstairs.

I tend to think of components as small, light items, which is true individually. How much can a stainless-steel spatula or a glass stirring rod weigh, after all? But put a case of 700 of each of them in a large box along with similar quantities of two or three other “small, light” items, and the mass adds up quickly. At 30, I wouldn’t have thought twice about any of this stuff; at nearly 60, it becomes an aerobic workout. Between hauling components and kits up and down the stairs and walking Colin, I probably get more exercise than most guys my age.


14:56 – Urk. Now that’s embarrassing. I’m starting to clean off my main desk to make room for the new system. I’m going to run it side-by-side with the current system until I’m sure everything I need is migrated over. So, as I was moving piles of stuff off my desk, what did I notice but a stack of five hard drives in those clear plastic form-fitted cases. I looked at the first one: “Oh, well, it’s only 160 GB, not big enough to worry about.” At the second: “Oh, well, it’s only 500 GB.” At the third: “Oh, well, it’s only 1.5 TB.” At the fourth: “Oh, well, it’s only, uh, 2 TB.” At the fifth: “Oh, shit. Another 2 TB drive.” Both 2 TB drives, as best I remember, have never been used other than briefly to test a RAID system. Oh, well. One can never have too many hard drives. I’d completely forgotten I had these. I’ll probably just stick them in an external eSATA drive carrier and use them for portable backup.


16:20 – With Europe already turning into a smoking pile of rubble, I sometimes wonder if Comrade Barroso has been inhaling too much of that smoke: Federal Europe will be ‘a reality in a few years’, says Jose Manuel Barroso

Federated, hell. They’ll be lucky if the EU still exists. The euro certainly won’t, unless it’s a Southern-tier euro, with the protestant Northern tier returning to their own currencies, or perhaps, if they haven’t learned their lesson from this catastrophe, a shared Deutsche Mark under whatever name. I’ve known for years that Barroso, that “former” Marxist, is delusional, but he keeps coming up with even more impressive castles in the sky. Barroso, who defines the term True Believer, no doubt actually believes that not just the eurozone but the EU 27 will fall in with his ridiculous plans. Even now, the UK is teetering on the edge of withdrawing from the EU, and with prominent defections among even his own Tories, Cameron may not be able to hold things together for another year, let alone until the proposed referendum on EU membership four years from now. And what are the chances that Germany, Finland, and Holland will agree to pay not just the Southern tier’s outstanding debts but to continue to subsidize them forever and without limit? I’d say the probability is slightly more than zero. Maybe 0.000001.

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Sunday, 5 May 2013

07:55 – Barbara left yesterday morning to run some errands and then head over to her parents’ apartment to pick up a few items for her dad before visiting him in the hospital. While she was gone, I got a call from a young woman at the hospital, whom I assumed to be one of the nurses caring for Dutch. She was calling to give Barbara an update on her dad’s condition, so I gave her Barbara’s cell phone number. She said I wasn’t on Dutch’s HIPAA list, so she wasn’t allowed to tell me anything, but asked since she already had me on the phone if I’d mind her asking a few questions about Dutch. I answered as best I could based on what Barbara has been telling me. She thanked me before she hung up. It wasn’t until I talked to Barbara later that I found out she wasn’t a nurse. She was one of Dutch’s doctors. At first, I wondered if I’d been unconsciously sexist/agist, but that wasn’t it at all. I assumed that she was a nurse because she wasn’t at all hurried or arrogant. She took her time and didn’t seem to be at all in a hurry to finish the conversation and move on to the next item on her to-do list. She talked to me as though I were an intelligent person who might have useful information rather than just someone she had to talk to to complete a checklist. I suspect that Dutch is lucky to be her patient.

The replacement hard drive for my new system arrived several days ago, but I hadn’t had a spare moment to do anything with it. While Barbara was away yesterday afternoon, I took the time to install the drive and get Linux Mint 13 LTS up and running. The system is still sitting on the kitchen table, but it’ll shortly move into my office, where it will sit, along with its new monitor, keyboard, and mouse, alongside my current system. I’ll run them side-by-side until I’m satisfied that everything I care about on the current system–apps and data and configurations–has been migrated successfully to the new system. Then and only then I’ll do a cut-over.

I’d originally planned to install the system to the 128 GB SSD, but I changed my mind. I installed Linux to the hard drive, and will use the SSD as a second drive devoted exclusively to data. When I leave the house for anything more than walking Colin, I’ll unmount the SSD, slide it out of its bay, and take it along.


09:33 – I just boxed up another forensic science kit and set it out to ship tomorrow. That’s the third one in the last week, which is about two more than I’d expect to sell in a week this time of year. (The biology kits and chemistry kits both ordinarily outsell the forensic science kits by a factor of four or five.) We’re down to only six forensic science kits in stock, so we’d better get another 30 built soon. Or at least get the small parts bags made up and the chemicals bottled and bagged. Given those, we can build kits as needed on the fly.

Going through the list of chemicals and reagents we’ll need for the new batch of forensic kits I noticed glycerol, which is one of my least favorite chemicals to fill bottles with. The stuff is viscous, which makes it very difficult to fill bottles manually because it wants to form a bubble at the bottle’s mouth and then blurp over and run down the side of the bottle. Using the automatic dispenser is easier, but the viscosity of glycerol makes it almost a gym workout to use the pump. Then I realized that the viscosity of glycerol is strongly affected by temperature. At room temperature, the stuff is gloppy. At around body temperature (37 C) to hot tap water temperature (50 C), the stuff is much, much less viscous. So, the next time I fill glycerol bottles, I’m going to run a bucket of hot tap water and put the 3.8 liter stock bottle of glycerol in it to warm up before I dispense it.

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