Saturated hydrocarbons: Each carbon atom is bonded to as many hydrogen atoms as possible. In other words, the carbon atoms are saturated with hydrogen (Source).

or

Saturated means that the hydrocarbon has only single bonds and that the hydrocarbon contains the maximum number of hydrogen atoms for each carbon atom Latech.edu.

But if a carbon chain has side chains, the carbon from the side chain takes the place of a hydrogen. So it doesn't have as many hydrogens as it could have right?

But then I guess I could say that anything except methane has less than the max (4) number of hydrogens.

So what exactly is meant by maximum number of hydrogens?

I've heard many parents, on several occasions, make statements to the effect that they believe it to be harmful to discuss sexuality openly and directly with young children (I'm talking about kids aged 5-10 or so). Movies and TV shows with sex scenes (not pornographic ones, but unmistakeably nonetheless) are given higher age ratings, and many parents are careful not to let their children watch movies that feature sexuality or nudity, even in non-extreme situations. Many parents are upset at the idea of sex ed in schools, particularly for children under the age of 13-14 or so.

In all, there seems to be a consensus (not universal, but widespread in North America at least) that exposing children to sexuality is somehow harmful.

Is there any data to back up or refute that consensus? Any studies on links between exposure to sexuality (at school, through discussions with family, through the media, etc.), and, say, STD rates, teen pregnancy rates, depression rates, sexual abuse rates (as victims or as perpetrators), etc.? Note that I'm not much interested in "starts having sex at an earlier age" (the only effect I've ever seen claimed by a study), unless it is necessarily accompanied by abuse and/or poor use of protection.

I'm particularly interested in the effect of discussing the topic with children, i.e. the child who gets everything explained to them when they're 5 and whose parents are not shy about talking about sexuality in everyday life, versus the child whose parents hold off on "the talk" until they are 14 and try to never mention sexuality in the presence of their children.

I am using the following code to render a set of links. I am however not able to edit the internal_link field through site edit. It is allowing only one field to be editable though I have provided site edit tags for all fields.

In this case...only title is editable.When I remove the site edit tag for title, the inter_link becomes editable.

What am I doing wrong? Any help would be very much appreciated:

@if (lnk.ContainsKey("internal_link"))  
        {
            if(lnk["type"].Value == "Open New Window")
                {  
                    var lk = lf.ResolveLink(lnk["internal_link"].LinkedComponentValues[0].Id);
                    if(lnk.ContainsKey("image"))
                    {
                    @Html.SiteEditField(Model.Component, lnk["internal_link"])
                     <a href="@[email protected]" target="_blank">         
                     @Html.SiteEditField(Model.Component, lnk["image"]) 
                     <img src="@lnk["image"].LinkedComponentValues[0].Multimedia.Url" alt="@lnk["image"].LinkedComponentValues[0].Title" />
                     @Html.SiteEditField(Model.Component, lnk["title"])
                     @Html.Raw(lnk["title"].Value)</a>
                    }

                }
            if(lnk["type"].Value == "Same Window") 
                {
                    var lk1 = lf.ResolveLink(lnk["internal_link"].LinkedComponentValues[0].Id);

                    if(lnk.ContainsKey("image")){
                    <p>
                    @Html.SiteEditField(Model.Component, lnk["internal_link"])
                    <a href="@[email protected]">
                    @Html.SiteEditField(Model.Component, lnk["image"]) 
                    <img src="@lnk["image"].LinkedComponentValues[0].Multimedia.Url" alt="@lnk["image"].LinkedComponentValues[0].Title" />
                    @Html.SiteEditField(Model.Component, lnk["title"])
                    @Html.Raw(lnk["title"].Value)</a></p>
                    }

                    if(!lnk.ContainsKey("image")){                      
                    @Html.SiteEditField(Model.Component, lnk["internal_link"])
                    <a href="@[email protected]">@Html.SiteEditField(Model.Component, lnk["title"])
                    @Html.Raw(lnk["title"].Value)</a>
                    }
                } 
        }

//UPDATED CODE:

@if (lnk.ContainsKey("internal_link"))  
        {
            if(lnk["type"].Value == "Open New Window")
                {  
                    var lk = lf.ResolveLink(lnk["internal_link"].LinkedComponentValues[0].Id);
                    if(lnk.ContainsKey("image"))
                    {
                    @Html.SiteEditField(Model.Component, lnk["internal_link"])
                     <a href="@[email protected]" target="_blank">         
                     <p>@Html.SiteEditField(Model.Component, lnk["image"]) 
                     <img src="@lnk["image"].LinkedComponentValues[0].Multimedia.Url" alt="@lnk["image"].LinkedComponentValues[0].Title" /></p>
                     <p>@Html.SiteEditField(Model.Component, lnk["title"])
                     @Html.Raw(lnk["title"].Value)</p></a>
                    }

                }
            if(lnk["type"].Value == "Same Window") 
                {
                    var lk1 = lf.ResolveLink(lnk["internal_link"].LinkedComponentValues[0].Id);

                    if(lnk.ContainsKey("image")){

                    @Html.SiteEditField(Model.Component, lnk["internal_link"])
                    <a href="@[email protected]">
                    <p>@Html.SiteEditField(Model.Component, lnk["image"]) 
                    <img src="@lnk["image"].LinkedComponentValues[0].Multimedia.Url" alt="@lnk["image"].LinkedComponentValues[0].Title" /></p>
                    <p>@Html.SiteEditField(Model.Component, lnk["title"])
                    @Html.Raw(lnk["title"].Value)</p></a>
                    }

                    if(!lnk.ContainsKey("image")){

                    @Html.SiteEditField(Model.Component, lnk["internal_link"])
                    <a href="@[email protected]"><p>@Html.SiteEditField(Model.Component, lnk["title"])
                    @Html.Raw(lnk["title"].Value)</p></a>
                    }
                } 
        }

I have made 7 or 8 extract brews over the past year and am interested in moving up to all-grain. What equipment is needed, and what steps are added to the process.

I have been posed the following question in one of my assignments. I would like to get some feedback on my answer, and possible some suggestions :).

"A large art gallery has hired you to photograph every individual framed painting in the gallery for an upcoming exhibition. They require colour accurate copies of the artwork for use in a catalogue."

And this is my response to the question.

Chosen Equipment: Transportable studio flash gear, Tripod, 20mm lens, 135mm lens

Explanation: Given that the art gallery is going to use colour accurate copies of the artwork for use in a catalogue, a transportable studio flash gear is important so that the correct exposure is achieved, so as to not darken or lighten to much the colours of the artwork. The tripod is needed so as to minimise the amount rotatation adjustment in post production and to get proper dimensions of the artwork. Preferably the camera on the tripod should be adjusted in such a way that the sensor is parallel to the artwork. As for lens choices, i would choose the 20mm and the 135mm prime lenses. The 20mm, just in case there are some very wide paintings so that they can fit on frame and the 135mm so that the painting can be easily framed from a distance. DOF should not be an issue here since, these are catalouge shots.

What do you guys think?

On my boat I have a number of electronics devices that run on 12V DC and normally get their power from an AC transformer. They include a media player, a network router, and a portable hard drive. Since the boat is wired for 12V DC I would like to set these up to run directly off of the boat's DC. This will free up a lot of power strip space, and eliminate the inefficiency and need to run them through the boat's DC to AC inverter when not connected to shore power.

I've read that this is dangerous territory since the boat's DC system is subject to surges and noise, for example when the starter or the electric windlass are engaged or the VHF radio is in use, and that this can damage electronics directly tied to the boat's DC system. I've also read that while the marine 12V system's voltage can vary from 12 to 14.4v (depending on whether the alternator and charger are engaged), these devices are not tolerant of these voltage fluctuations and are designed to expect a constant regulated voltage from their AC-DC transformer (wall wart). There are marine surge and noise suppression products available ranging from $50 - $200 to address this concern.

The marine market is renowned for its high markup. For safety and navigation applications where help is far away this is merited, but honestly if any of this equipment I am connecting failed nobody would get hurt or lost. The price of the commercial products seems high and I suspect the circuit should be relatively simple. The loads are all less than 5 amps.

I am interested in implementing a custom circuit to accomplish this protection.

Where should I start?

Are there reference designs for such a thing? What are the critical components: voltage regulation, surge suppression, noise suppression?

I've done a bunch or Arduino projects and am comfortable soldering, breadboarding, and putting together a custom through-hole project, but I lack a formal EE education and background. I've also done quite a bit of re-wiring on the boat so am pretty comfortable with the marine DC distribution and circuit protection and the ABYC standards.

A couple examples of commercially available products:

http://www.sto-p.com/pfp/online.htm

http://shop.sailnet.com/charles-1224-volt-suppressor-p-38606.html

edit: is something like this a good starting point: http://www.ti.com/product/lm5118 and if so what else should I add? Ferrite chokes?

I have a queer issue with my Arch-Linux System.

I am unable to get any Sound Output when playing audio, AFTER starting X Server.

The issue is not with Volume Controls or Sound Card Drivers because, if I start any kind of Audio playback BEFORE starting X Server, I have absolutely no issues. The Audio keeps playing even after X Server starts. But if I pause / stop the audio, on restarting playback, I get no audio output.

Even terminating X Server does not resolve this issue. Rebooting the system though, helps.

I tried with different DE's. Checked with GNOME, XFCE, LXDE, KDE. Same issue everytime. So It's not due to a particular environment, but rather an issue with X.

I am not sure what files I should be checking for this. Could any please guide me through?

I am wracking my brain to try to figure out how to retrieve a custom content type's edit form programatically.

For example, I created a content type called "address", and have this:

$form = drupal_get_form("address_node_form");

But it does not work. I get back this warning:

Warning: call_user_func_array() [function.call-user-func-array]: First argument is expected to be a valid callback, 'node_form' was given in drupal_retrieve_form() (line 771 of /home/richardp/public_html/drupal7/d7/includes/form.inc).

I know that in D6 you also had to include an object where you specify the type, but I have tried this and it still doesn't work.

When I try simply $x = node_add("page"); I get a white screen of death, presumably because I ran into a PHP error.

Am I supposed to be including a file first or something like that?

Here are the cards involved:

  • Levitation

    Creatures you control gain flying.

  • Gravity Sphere

    All creatures lose flying.

  • Oblivion Ring

    When Oblivion Ring enters the battlefield, exile a nonland permanent (card). When Oblivion Ring leaves the battlefield, return that permanent (card) to play under its owner's control.

  • Tranquility:

    Destroy all enchantments.

So, I play a Levitation, and all of my creatures gain flying. Next turn, my opponent responds with a Gravity Sphere, and so, since the Gravity Sphere came into play more recently, it overrides Levitation, so all of my creatures would then lose flying. So, I play Oblivion Ring on his Gravity Sphere, my creatures gain flying again. He then plays Oblivion Ring on my Leviation, they lose flying. I then play Tranquility, which simultaneously kills both Oblivion Rings and brings back the Levitation and Gravity Sphere. So at this point, does everyone fly, or do they all stay on the ground?

The Catechism of the Catholic Church implies that over a certain time in the period in the Western Church, there weren't any deacons.

CCC 1571 Since the Second Vatican Council the Latin Church has restored the diaconate "as a proper and permanent rank of the hierarchy," while the Churches of the East had always maintained it.

What is the history and explanation behind this?

The good answer will also correct any wrong assumptions.