ZM, "if such a stimulus is applied to one part of a plant, might the response be exhibited in only a part of the plant" Very likely, sometimes. However, there is considerable evidence of remote signaling. So, a stress in one part of a plant can trigger a response in other parts. Percy Wright, a Canadian plant breeder, told a story of how "His uncle moved from Saskatchewan had moved west to the Okanagan and for sentimental reasons had grafted some ultra hardy Saskatchewan plums onto a few branches of the peach trees in his orchard. A harsh test winter arrived after a few years which decimated not only the peach crop, but also the trees themselves. Most were killed outright or at the least severely injured. However the peach trees with ultra hardy Saskatchewan plums grafted in the branches had no winter damage whatsoever!" The environmental stress (cold? short days?) was detected by the ultra hardy plums, which then communicated an appropriate response -- presumably to the roots. When they went dormant, the rest of the tree had no choice but to follow. Here's a more recent example of remote signaling: Plant Mol Biol. 2003 Nov; 53(4): 493-511. Rootstock effects on gene expression patterns in apple tree scions. Jensen PJ, Rytter J, Detwiler EA, Travis JW, McNellis TW "Like many fruit trees, apple trees (Malus pumila) do not reproduce true-to-type from seed. Desirable cultivars are clonally propagated by grafting onto rootstocks that can alter the characteristics of the scion. For example, the M.7 EMLA rootstock is semi-dwarfing and reduces the susceptibility of the scion to Erwinia amylovora, the causal agent of fire blight disease. In contrast, the M.9 T337 rootstock is dwarfing and does not alter fire blight susceptibility of the scion. This study represents a comprehensive comparison of gene expression patterns in scions of the 'Gala' apple cultivar grafted to either M.7 EMLA or M.9 T337. Expression was determined by cDNA-AFLP coupled with silver staining of the gels. Scions grafted to the M.9 T337 rootstock showed higher expression of a number of photosynthesis-related, transcription/translation-related, and cell division-related genes, while scions grafted to the M.7 EMLA rootstock showed increased stress-related gene expression. The observed differences in gene expression showed a remarkable correlation with physiological differences between the two graft combinations. The roles that the differentially expressed genes might play in tree stature, stress tolerance, photosynthetic activity, fire blight resistance, and other differences conferred by the two rootstocks are discussed." The stress (fire blight infection) affected the scion, but the rootstock somehow mediated the response. You're right that stress "can encompass a wide range of factors, many of which we might not think of as 'stress'." To paraphrase Forest Gump, "Stress is as stress does." In the broad sense, any sort of change in conditions is stressful. Many kinds of environmental stress are easily tolerated and usefully exploited by plants (or animals) long accustomed to them. However, unfamiliar changes/conditions can provoke more profound disturbances. Changes in photoperiod, for example, are often exploited by plants to provide a trigger for flowering. But when certain plants (e.g., tropical) are exposed to the wide ranging photoperiods of northern regions, they may respond oddly. In its native habitat (Brazil) the beautiful Amaryllis fulgida (Hippeastrum striatum var. fulgidum) bears a cluster of 2-4 flowers on a scape around 18 inches tall. But when the species was first cultivated in Britain in the early 19th century, it changed dramatically. "This specimen was imported by Mr. Harrison, from Brazil, and was drawn at Aighburgh, April, 1832. Some of the leaves measured twenty-nine inches in length and nearly three in breadth; the first flower-stem (bearing eight flowers) attained the height of thirty inches, and would probably have become somewhat taller, but was generously cut for the completion of the present figure; a second scape immediately succeeded it, twenty-eight inches high and having six flowers." By the end of the century, the gigantism was gone. Generations of offspring from the original specimens soon became adapted to the British seasons and reverted to the original "type." Other differences in "stress" are obvious. I was thinking of various species of roses that tolerate very different conditions, and are also stressed by very different conditions. Forest species (e.g., Rosa pinetorum) are weakened by exposure to full sun, whereas R. arkansana thrives in full light. R. rugosa happily tolerates salt spray when grown near the ocean, while others are likely to be killed. Some favor in humus (woodland types) while others grow and flower best in sand. Furthermore, there are distinct "sensitive periods" (or "critical periods") in plant development. An environmental condition that is usually tolerated without much difficulty can become very stressful during a fairly brief period of transition. And one more item that I just found while looking for something else: Biosystems. 1995 ;36 (1):71-7 8527698 Adaptive determinism during salt-adaptation in Sorghum bicolor. H Seligmann , G N Amzallag During adaptation to salinity, plants of Sorghum bicolor showed malformations affecting the leaves in development (DPL). At the end of the adaptation process, the plants were regrouped according to their pattern of DPL response. The distribution of the plant population in different patterns depended on environmental conditions. However, a positive relationship between the frequency of a pattern and its rate of development has been found. Similarly, a negative relation between the frequency of a pattern and the rate of senescence for the same pattern has been observed. The results reveal the existence of an orientation of the plant response towards the patterns with highest developmental rate and lowest rate of senescence. This property is defined as "adaptive determinism". Results indicate that the NaCl acts as a trigger for adaptation to a whole range of environmental perturbations. This suggests that adaptation to salinity is not a pre-programed response of the plants, and may be related to learning processes occurring in animals. Amzallag made some very interesting studies of the effects of salt on sorghum. I just decided to make a bibliography of his papers. Karl Here is a link that might be useful: Salt stress in Sorghum bicolor

The label says it has 512 MB of memory. I'm not sure which memory this is referring to, but if it is the RAM on the motherboard, it could use an upgrade. Windows XP likes to have 2 Gigabyte (2 GB) or more. You are using a wireless router on a DSL sevice. Make sure that your wireless router is secured so that someone else within range can't horn in and ride piggyback on your connection for free. The more computers using the connection, the slower it gets for any one computer. The next potential bottle neck is the DSL service. If this is over a phone line, it may not be a large jump in speed over a standard dial-up service. A good connection does have marked improvement in speed, but a troublesome connection looses much speed advantge. Consider taking the computer to a shop or friend and try on their lines. Another problem, if over a phone line, is a noisy line. Thw phone company can test your phone line for quality. Make sure that you tell the technicam that this line will be used for internet service. If over a phone line, another bottleneck can be the phone company. It may not have installed equipemnt capable of high speed data transfer. If you have a friend who has a high speed cable connection with a wireless router, you may want to try your computer on his connection. Have the computer checked out at a computer shop to discover if it is the computer or the DSL service to your house.

First off jpeg is a lossy file format. What this means is every time you save the image you lose a few bytes. Over many saves and conversions you end up with an image that is not very good. Be sure to save original jpegs on a cd that can't be written onto and work on copies. If you are uploading originals that are clear on your computer but not the web site check to be sure the images are not being resized. When I put a picture on my website I can tell the browser to shrink or expand it to a different size. For example I might have a 640x480 jpeg and tell the webpage to show it as 320x240 or 1280x960 or anything else. That will make the picture not look as well. ( and most likely what your problem is ) shrink or expand the picture your self and upload an image that is the proper size rather than doing it in html.

The most practical way to have the running tally is to use an e-commerce suite installed on the web server. It sets cookies necessary to do what you want. They run about $400 unless you pay a higher monthy hosting bill. Thats why I suggested an experienced web designer/mgr can set this up for you, possibly bypassing the need for added expense. Maybe you can find some cheapo shopping cart scripts or software too by doing a search.