### Adjective or Noun for Describing a Written Entity Devoid of Meaning

I wrote a blog post that was about pretty much nothing, but couldn’t come up with a good word to describe its lack of meaning. I was hoping for a more interesting word than just meaningless.

### Is there an enhanced third-party firmware for Pentax SLR cameras?

I am wondering whether there is a kit for making software improvements to the Pentax K-x camera.

What I'm after is something akin to the CHDK, which is a firmware enhancement for many Canon point-and-shoot models.

### Should we tell all performance related problems to manager?

I was a newbie in software industry, in India, after completing my graduation. Started as a software developer but there was something I could not figure it out what was wrong with me as new technology was assigned to me. I was not able to meet the deadlines. They asked me to share my problems but due to shyness, physiological fear of under performance, contemporary competition and eventually work load prevented me to share anything. Also, my lead was not so co-operative in knowing my weakness, problems. Things that prevented me from saying was the fear of under performance. So day by day my problems started and consequently I have to reluctantly say GOODBYE.

So my question is "Is it good to share one's individual problems with the manager irrespective of manager's nature?" ?

### Get multiple sub-resources with one single endpoint

I'm currently trying to build an API to be used for reporting-purposes. Therefore I do only need to implement some GET endpoints.

In my simple scenario there are two resources. An event and the creator of the event. Each event has one creator.

For one report I do need all events created between a given time-frame.

• GET /api/Events/?start=someStartDate&end=someEndDate

which will get me those events. Now I do need the creators as well.

How can this be done without calling GET /api/Creators/{creatorId} for each event returned by the first call (which can be quite a lot)?

It's no option to pass event-ids as they are Guids which would exceed the maximum url-length for GET. Are there any best practices like a new endpoint? But how would this endpoint look like?

I also thought about including the creator directly into the EventResource. Unfortunately, this got me also headaches as of a creator can have a list of events (which have a creator, which has events, ... and so on).

Would it make sense to have two kinds of resources like some sort of base-eventresource which has only simple properties and an extenden event-resource which has other resources encapsulated? But where should I draw the line? Also I then would need two endpoints for each resource (base and extended) which may confuse the client.

Hope here is the right place for such kind of questions. Maybe the solution is obvious but I'm already in too deep to see it.

### Plotting the sum of two points on an elliptic curve

I am doing an experiment to prove the associativity of the addition of points on an elliptic curve. So far, I have produced a code which allows me to move points on my curve.

To find their sum, I need to draw a line till it intersects a curve in the third point, then mirror this point around $x$ axis and put a dot there.

But I am completely stuck in this moment. I have tried using NSolve with InterpolatingPolynomial, but got no result.

Here is the code so far:

Extr = {x /. #, y /. #} &;
Att =
Extr[
NMinimize[{(x - #[[1]])^2 + (y - #[[2]])^2, x - x^3 + y^2 == 0}, {x, y}, AccuracyGoal -> 10, PrecisionGoal -> 8][[2]]] &;

DynamicModule[{loc1 = {0, 0}, pt1 = {0, 0}, pt2 = {1, 0}, loc2 = {1, 0}, pt3= {-1, 0}},
{
LocatorPane[Dynamic[{loc1, loc2}],
ContourPlot[{y^2 - x (x - 1) (x + 1) == 0}, {x, -2, 2}, {y, -2, 2},
AxesLabel -> Automatic, ImageSize -> 600,
Epilog -> {Red, PointSize[Large],
Point[Dynamic[pt1 = Att[loc1]]],
Green,
Point[Dynamic[pt2 = Att[loc2]]],
Yellow, Thick,
Dynamic[InfiniteLine[{pt1, pt2}]]
}
]
],
Dynamic[{pt1, pt2, pt3}];
}
]


How should I get a point of intersection into pt3 so it will be of the same type as pt1 and pt2?

### If/When to stop asking a client for clarification and just design

I am an in-house designer for a small tech start-up business. I create all of their advertising materials.

This is an issue I've run into many times with my point of contact from whom I get the design requests from.

for example they are asking me to create a backdrop for a trade show booth and they just asked for a "simple" background. After asking for more details they respond just make a "colored background" with our logo. At which I ask do you mean you want a solid colored background or an interesting pattern that will catch peoples attention?

So my question is: is there a time to stop asking questions and just design something to give them options. Because I feel many times I'm not sure if they know what they really want. Or should I just send them what they asked for a solid colored backdrop with their logo?

I also always direct the design requests to this google form:

to make the information gathering process more streamlined. But it seems the longer I've been using the form the less motivated my point of contact is to fill it with the most information.

Any tips on how teach the client the importance of information gathering?

### Finding specific activity of an enzyme from Km values for a reversible enzyme reaction

I have an enzymatic equation in the form:

$$E + S\xleftrightarrow[k_{-1} = 2.6\text{ x }10^{-2} \text{s}^{-1}]{k_1 = 3 \text{ x }10^8 \text{M}^{-1}\text{s}^{-1}} EX \xleftrightarrow[k_{-2} = 3.8\text{ x }10^{-8} \text{M}^{-1}\text{s}^{-1}]{k_2 = 1.45 \text{ x }10^3 \text{s}^{-1}} E + P$$

For the forward reaction, I have calcluated the $K_m$ value to be:

$${K_m}_f = \frac{k_{-1}+k_2}{k_1} = 4.83\text{ x }10^{-6}\text{M}$$

And for the reverse, I calculated $K_m$ to be:

$${K_m}_r = \frac{k_{-1}+k_2}{k_{-2}} = 3.82\text{ x }10^{-6}\text{M}$$

From this info, I need to somehow calculate the specific activity of the enzyme in both the forward and reverse reactions.

The weight of one enzyme unit is 50,000 kDa.

Specific activity is defined as the number of 'Units' per mg of protein.

One enzyme unit is defined as the amount of enzyme that catalyzes the formation of 1 μmol of product per min under optimal assay conditions, which are assumed for this question (saturation of substrate in forward reaction / saturation of product in reverse reaction).

Can anyone point me in the right direction? I have a feeling that this is related to the $V_{max}$ term in the Michaelis-Menten equation:

$$v = \frac{V_{max}\text{[S]}}{K_m + \text{[S]}}$$

In that $K_m = \text{[S] at}\frac{1}{2}V_{max}$.

So, $$[S]_{f} \text{ at } V_{max} = 2(4.83\text{ x }10^{-6}\text{M}) = 9.66\text{ x }10^{-6}\text{M}$$

So, $$[S]_{r} \text{ at } V_{max} = 2(3.82\text{ x }10^{-6}\text{M}) = 7.64\text{ x }10^{-6}\text{M}$$

but I dont know how to relate it to specific activity.

### Ping [computer] get strange IP address

On my local network, I have multiple computers that I connect to. I don't typically remember the IP address nor do I care. This morning, I went to RDP put "Sam" in the field and pressed enter. It wouldn't connect so I opened up a command prompt to see if I could ping her computer and got something I have never seen before.

C:\Documents and Settings\wbeard52>ping sam
Pinging sam.WORKGROUP [67.215.65.132] with 32 bytes of data:
Reply from 67.215.65.132: bytes=32 time=51ms TTL=56


Obviously, I have a computer named "sam" on the local network and I cam RDP into her computer with her IP address (not the one listed here). I don't have anything in the routing table that I can see.

wbeard52>route print
===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x2 ...00 0e 35 a5 6f b2 ...... Intel(R) PRO/Wireless 2200BG Network Connection
- Packet Scheduler Miniport
===========================================================================
===========================================================================
Active Routes:
Network Destination        Netmask          Gateway       Interface  Metric
0.0.0.0          0.0.0.0   192.168.52.208  192.168.52.152       10
127.0.0.0        255.0.0.0        127.0.0.1       127.0.0.1       1
192.168.52.0    255.255.255.0   192.168.52.152  192.168.52.152       10
192.168.52.152  255.255.255.255        127.0.0.1       127.0.0.1       10
192.168.52.255  255.255.255.255   192.168.52.152  192.168.52.152       10
224.0.0.0        240.0.0.0   192.168.52.152  192.168.52.152       10
255.255.255.255  255.255.255.255   192.168.52.152  192.168.52.152       1
Default Gateway:    192.168.52.1
===========================================================================
Persistent Routes:
None


What would be causing the ping to be sent to an IP address in San Francisco?