A review of the Philips 42PFL9632D 1080p HD LCD TV

Design

The Philips 42PFL9632D LCD HD TV is an extremely attractive model, with a slender narrow frame and solid silver stand. The glossy black frame looks very sophisticated and trendy. The depth of the screen is 256mm which makes it a little bit chunky to wall mount, however not impossible.

Setup/Installation

Simplicity all the way.

Features

We have never seen so many features packed in to a LCD screen (maybe that’s the reason for the chunky depth?). The Philips 42PFL9632 LCD TV has all of the features of any other Plasma or LCD TV rolled in to one. Starting with the LED lighting feature which brings more light and therefore more colours to the image whilst using less power, Philips Perfect Pixel Engine is on board, thankfully. This incorporates the latest 100Hz LCD processing which increases the refresh rate on PAL sources creating an absolutely smooth image. Philips also introduces HD Natural Motion with this model which replaces the previous Digital Natural Motion System. The 42PFL9632 also has a 14 bit colour engine and the ability to display 24 fps from Blu-ray or HD DVD players. There is also a 2 channel Ambilight, 3D Combfilter, Active Control and Light Sensor, Jagged Line Supression, Progressive Scan, Widescreen Plus, Anti-Reflection Coating and 2x 8w speakers. Connectivity is good with 3 HDMI’s sockets, component video, 2 RGB SCARTs, S-Video, USB port and more. The Philips 42PF9632 LCD TV - Stunning in every way

Performance

We found the Philips 42PFL 9632 LCD TV extremely easy to use and we were impressed with the level of simplicity it came with. There are loads of options to suit your personal taste, to select the colour, brightness and warmth for example and these can then be saved to your personal setting. This setting can then be increased, decreased or even switched off. The images we received from this model were of an extremely high standard and failed to disappoint us at all. The images were vibrant and clear and colours were displayed immaculately, whilst motion judder was eliminated and detail was amazing. The huge size of this set manages to display Freeview images perfectly and is by far the best we’ve seen, however HD images are not as impressive but very close behind.

Overall Opinion

The Philips 42PFL9632 LCD TV has some amazing features which all assist in creating and wonderful model with outstanding images. The HD images could be better but definitely, not worth moaning about. If Freeview is more of a concern to you, you will have no reservations about this TV as the images received are absolutely stunning. The price of the 42PFL9632 is pretty average for a model of this size and is really worth every penny for the splendour you receive.

Pros + 1920x1080 pixels + 100hz Clear LCD + 3x HDMI + Stunning images + Fantastic colour reproduction	Cons - Slightly disappointing HD image but only very slightly.
Picture Quality 10/10	Sound Quality 10/10
Connectivity 10/10	Future Compatibility 10/10
Ease Of Use 10/10	Overall Rating

http://www.unbeatable.co.uk/p_repr/Philips-42PFL9632D-42INS-Plasma-Full-100HZ-Ambilight-Tv-Reviews/44609630.html

Philips 42PFP5532D

42in Plasma
Picture Features Usability Value
Surprisingly good all round plasma for a knock down price.
HD Ready:	yes
Resolution:	1024 x 768
Rating:	89%

Design

The first thing that strikes us about the PFP5532D is the quality of finish, which comes as a pleasant surprise on a budget screen. It also looks good, comparing favourably with the somewhat plastic look and feel of many of its rivals.

Features

Picture processing on the 42PFP5532D comes in the shape of 'Pixel Plus HD' technology, which is not the latest incarnation of this technology, but has built a solid reputation for its image enhancement abilities. It has been designed to enhance picture sharpness with Standard Definition (SD) sources as well as High Definition (HD) material, improve natural detail and colour performance.

	Screen: 42in 16:9 Tuner: Digital Sound System: Nicam Resolution: 1024 x 768 Contrast Ratio: 15,000:1 Other Features: Pixel Plus HD, 3D Combfilter , Digital Noise Reduction , Jagged Line Suppression. Sockets: 2 HDMI, 2 SCART, Component Video, Composite Video, S-Video, PC input.

Connectivity on the 42PFP5532 is adequate rather than outstanding with 2 HDMI and 2 Scarts along with the usual Component, Composite and S-video inputs. There is also a useful PC input.

The 3D comb filter has been designed to separate brightness and colour signals more effectively to eliminate cross-colour, cross-luminance and dot-crawl distortion. By separating the colour from the black-and-white information, the technology aims to remove both horizontally and vertically hanging dots, as well as dot crawl.

Philips' 'Incredible Surround' is an audio technology designed to magnify the sound field to create a more immersive audio experience. The technology mixes sounds from left and right expanding the virtual distance between the two speakers. The aim is to enhance the stereo effect, creating a more natural sound.

Performance

Black levels on the 42PFP5532 are excellent, not to the extent that they will trouble the benchmark 'Kuro' range from Pioneer, but good enough to compare favourably with more expensive units from the likes of Panasonic and Samsung. Graduation (and resulting shadow detailing) across darker scenes belies the status of the 42PFP5532 as a budget screen.

High Definition sources benefit considerably from the optimizing Pixel Plus HD engine. Pictures are clean and sharp while displaying incredible amounts of detail.

Inevitably, Standard Definition (SD) performance, especially from Freeview, displays the tell tale signs of trying to adapt a lower quality input for an HD ready screen. Although there is a certain amount of on-screen noise, it is never present to the degree that viewing pleasure is compromised.

Colour reproduction on the 42PFP5532D is another highlight. Displaying none of the over-saturation of some flat panels, colour is never less than wholly natural and convincing, especially with tricky skin tones.

With fast action scenes, we can at last recognize that the technology on the Philips 42PFP5532 is a little short of cutting edge. Fast panning can create a juddering effect, and fast moving images can lose a little clarity. Nevertheless, we still consider the 42PFP5532 a competent performer in this respect, with problems we have described being relatively minor.

For all the audio wizardry, sound on the 42PFP5532 is competent rather than outstanding, seeming to benefit little from the 'incredible sound' technology.

Conclusion

An all too often overlooked choice, the Philips 42PFP5532D offers a compelling price/performance combination.

http://www.hdtvorg.co.uk/reviews/plasma/Philips_42PFP5532D.htm

Chemical differences between DNA & RNA

Both RNA and DNA are composed of repeated units. The repeating units of RNA are ribonucleotide monophosphates and of DNA are 2'-deoxyribonucleotide monophosphates.

Both RNA and DNA form long, unbranched polynucleotide chains in which different purine or pyrimidine bases are joined by N-glycosidic bonds to a repeating sugar-phosphate backbone.

The chains have a polarity. The sequence of a nucleic acid is customarily read from 5' to 3'. For example the sequence of the RNA molecule is AUGC and of the DNA molecule is ATGC

The base sequence carries the information, i.e. the sequence ATGC has different information that AGCT even though the same bases are involved.

Consequences of RNA/DNA chemistry

The DNA backbone is more stable, especially to alkaline conditions. The 2' OH on the RNA forms 2'3'phosphodiester intermediates under basic conditions which breaks down to a mix of 2' and 3' nucleoside monophosphates. Therefore, the RNA polynucleotide is unstable.

The 2' deoxyribose allows the sugar to assume a lower energy conformation in the backbone. This helps to increase the stability of DNA polynucleotides. The following link shows 3-D models of the DNA and RNA nucleotides.

Cytidine deamination to Uridine can be detected in DNA but not RNA because deamination of Cytidine in DNA leads to Uridine not Thymidine. Uridine bases in DNA are removed by a specific set of DNA repair enzymes and replaced with cytidine bases.

http://www.biochem.uwo.ca/meds/medna/NAchem.html

STRUCTURE AND FUNCTION OF RNA

RNA is structurally similar to DNA!

Both nucleic acids are sugar-phosphate polymers and both have nitrogen bases attached to the sugars of the backbone- but there are several important differences.

• They differ in composition:

1. The sugar in RNA is ribose, not the deoxyribose in DNA (as we previously learned).
2. The base uracil is present in RNA instead of thymine.
   

• They also differ in size and structure:

1. RNA molecules are smaller (shorter) than DNA molecules,
2. RNA is single-stranded, not double-stranded like DNA.
   

• Another difference between RNA and DNA is in function. DNA has only one function-STORING GENETIC INFORMATION in its sequence of nucleotide bases. But there are three main kinds of ribonucleic acid, each of which has a specific job to do.

1. Ribosomal RNAs-exist outside the nucleus in the cytoplasm of a cell in structures called ribosomes. Ribosomes are small, granular structures where protein synthesis takes place. Each ribosome is a complex consisting of about 60% ribosomal RNA (rRNA) and 40% protein.
2. Messenger RNAs-are the nucleic acids that "record" information from DNA in the cell nucleus and carry it to the ribosomes and are known as messenger RNAs (mRNA).
3. Transfer RNAs-The function of transfer RNAs (tRNA) is to deliver amino acids one by one to protein chains growing at ribosomes.

http://ncc.gmu.edu/dna/rna.htm

What is the difference between DNA and RNA?

DNA and RNA Introduction

Introduction:

The nucleic acids are informational molecules because their primary structure contains a code or set of directions by which they can duplicate themselves and guide the synthesis of proteins. The synthesis of proteins - most of which are enzymes - ultimately governs the metabolic activities of the cell. In 1953, Watson, an American biologist, and Crick, an English biologist, proposed the double helix structure for DNA. This development set the stage for a new and continuing era of chemical and biological investigation. The two main events in the life of a cell - dividing to make exact copies of themselves, and manufacturing proteins - both rely on blueprints coded in our genes.

There are two types of nucleic acids which are polymers found in all living cells. Deoxyribonucleic Acid (DNA) is found mainly in the nucleus of the cell, while Ribonucleic Acid (RNA) is found mainly in the cytoplasm of the cell although it is usually synthesized in the nucleus. DNA contains the genetic codes to make RNA and the RNA in turn then contains the codes for the primary sequence of amino acids to make proteins.

Nucleic Acid Parts List:

The best way to understand the structures of DNA and RNA is to identify and examine individual parts of the structures first. The complete hydrolysis of nucleic acids yields three major classes of compounds: pentose sugars, phosphates, and heterocyclic amines (or bases).

Phosphate: A major requirement of all living things is a suitable source of phosphorus. One of the major uses for phosphorus is as the phosphate ion which is incorporated into DNA and RNA.

Pentose Sugars:

There are two types of pentose sugars found in nucleic acids. This difference is reflected in their names--deoxyribonucleic acid indicates the presence of deoxyribose; while ribonucleic acid indicates the presence of ribose.

In the graphic on the left, the structures of both ribose and deoxyribose are shown. Note the red -OH on one and the red -H on the other are the only differences. The alpha and beta designations are interchangeable and are not a significant difference between the two.

Heterocyclic Amines:

Heterocyclic amines are sometimes called nitrogen bases or simply bases. The heterocyclic amines are derived from two root structures: purines or pyrimidines. The purine root has both a six and a five member ring; the pyrimidine has a single six member ring.

There are two major purines, adenine (A) and guanine (G), and three major pyrimidines, cytosine (C), uracil (U), and thymine (T). The structures are shown in the graphic on the left. As you can see, these structures are called "bases" because the amine groups as part of the ring or as a side chain have a basic property in water.

A major difference between DNA and RNA is that DNA contains thymine, but not uracil, while RNA contains uracil but not thymine. The other three heterocyclic amines, adenine, guanine, and cytosine are found in both DNA and RNA. For convenience, you may remember, the list of heterocyclic amines in DNA by the words: The Amazing Gene Code (TAGC).

http://www.elmhurst.edu/~chm/vchembook/580DNA.html