It is important to understand the advantages and disadvantages of perceiving visual information. Throughout history, written and visual information (shapes and pictures) have been used together to perceive, think and, communicate. The discovery of the camera in 1895 enabled pictures of objects to be stored permanently. Photographic techniques also accelerated the development of science and industry.

In 1895, Roentgen discovered x-rays and developed a method to show a person’s bones and internal organs. This gave visual information-based perception more importance. In the past, we tried to sense and understand the surrounding world by using the naked eye within a narrow band of energy originating from the sun. Later on, we realized that we could see only a fraction of what was there.

Virtual reality

Virtual reality environments make perceiving and learning easier and more effective. Events that are expensive and require a long time to perceive and learn can be perceived and learned with less effort and less cost. For example, a virtual reality environment enables a person to tour the ocean’s bottom and deep space within several minutes. In addition, it reveals formerly unseen micro- and macro-objects visible to the naked eye, just as if they were being seen in a dream or were real.

The most powerful visual information techniques are in the advertising, marketing, news, and entertainment sectors. The virtual reality environment is just one cutting-edge development. To gain self-control and learn effectively, an individual can be placed in such an environment, which fully replicates the real world. Such environments are used, for example, to train pilots and doctors. Another suitable use would be to train Muslims for Hajj and Umrah. Such an experience would familiarize them with Makka and Madina, thereby lessening the potential for unexpected problems and better prepare them intellectually and spiritually for these holy voyages.

Visual information and education

The techniques of making objects visible started with discovery of the microscope and the telescope. When combined with multimedia technology, they have an important place in modern education. The correct and effective use of visual information and written information-based perception is improving the quality of education. Similarly, popular Web pages have been transformed into marketing environments that convey their messages through the combined use of scripts, images, sounds, and animation.

Surrounded by these visual tools and techniques, the media has a greater influence upon society than ever before, for it controls the visual information. Educators should teach their students how to analyze and criticize visual information, for producing fake computer-produced images in a visual information-based environment is almost as easy as producing fake written information with a copy machines. They must learn not to believe everything that they see, just as their parents learned not to believe everything that they read in the newspapers.

Conclusion

During the last several centuries, humanity has been led to believe that seeing is believing and don’t believe in what you can’t see. However, advanced visual processing techniques prove that not everything that we see is correct. In fact, such techniques might actually misled individuals, for they can produce images or virtual reality environments very close to the real one.

Many people probably would agree that the transistor was the greatest technological invention of the twentieth century. The first transistor, invented by Jack Kilby and Robert Noyce in 1958, was made from silicon. Even though integrated circuit technology has advanced to the level of putting millions of transistors on a fingernail-sized chip, transistors are still made from silicon. Now, however, both the scientific community and the high-tech industry are very excited about something new: plastic electronics. For many of us, this might sound like an oxymoron, for we know plastic only as an insulator. So how can a protective substrate or a carriage box to the actual electronic device be converted into an electronic device?

The story of plastic electronics started late 1970s with Alan Heeger, Alan Macdiarmid, and Hideki Shirakawa. These scientists demonstrated that the molecular structure of certain polymers (plastics) can be manipulated and then used as conductors. The Swiss Academy of Sciences was somewhat slow in recognizing their work, for they were awarded the Nobel prize in chemistry only in 2000. Nevertheless, the scientific community did not wait for the Nobel committee’s recognition of plastics. Since 1977, plastic has become probably the most common material in our daily lives.

Silicon versus plastic

All computer chips are made out of silicon (semiconductor) and aluminum (metal). Silicon is a great material for integrated circuits, because it is available, can be acquired in an extremely pure state (single crystal or amorphous), and has a very high mobility (the speed that electrons can travel through material). This mobility, in turn, determines the device’s switching speed. However, silicon has one important drawback: It is not easy to process.

Integrated circuit technology can deposit millions of silicon transistors on a single chip. However, the procedure for making these devices usually requires facilities worth billions of dollars, for silicon has to go through complicated photolithography procedures under clean room conditions before it can be incorporated into a device. But is it really worthwhile to spend billions of dollars on such facilities? The answer probably looks obvious, since Intel remains one of the world’s largest companies. However, we do not really need such a high quality in many of the applications for which silicon is used. So if there is something cheaper that can do the job perfectly, why not use it? Plastic is far cheaper, but not so sophisticated an alternative.

Plastic is cheap because billion-dollar facilities are not required to convert it into a device. In fact, the technology needed to process plastic into an electronic device is only slightly more advanced than an ink-jet printer. Electronic circuits are printed on an insulating polymer, and then certain parts of the polymer are exposed to UV light in order to convert the insulating polymer into a conducting polymer. The result is a device in which only the parts that we want to conduct are conducting. Moreover, these conducting parts sit on a protective insulating sheet of plastic. That is pretty much all we need for many applications.

The case for plastic

Plastic has two advantages over silicon: price and flexibility. Like other inorganic elements, silicon has strong covalent bonds between its atoms. As these bonds are rigid, they cannot bend or stretch. Plastic has very loose molecular bonds that can tolerate a significant amount of bending and stretching. Flexibility combined with electronics implies applications like flexible displays that can be rolled up and taken somewhere else, reloadable electronic newspapers that can be bent like paper, disposable mobile phones, and many others.

So if plastic is that good, why is it not the electronics industry’s standard material? For one simple reason: Plastic’s loose molecular bonds, which make the material so flexible, make it more difficult for the electrons to travel through it. Thus, plastic devices are slower than silicon devices. Until several years ago, the mobility of a typical conducting plastic used to be around 0.1 cm2/volts, whereas crystalline (best) silicon could reach 1000 cm2/volts at room temperature. Recently, a new class of polymers (pentacene) has been found in which molecules tend to self-organize. As a result, the mobility has been pushed up to 3 cm2/volts. Scientist working on pentacene estimate a number close to 50 cm2/volts as the limit of achievable mobility for this special polymer.

These expectations are not just wishful thinking of some optimistic scientists. In fact, even now there are some significant outcomes of plastic technology.

Current developments

John Rogers and coworkers from Bell Labs (Lucent Technologies) have patterned 256 polymer transistors on the back-plane of a flexible optical display. Richard Friend and coworkers from University of Cambridge have produced thin film transistor circuits using a high-resolution inkjet printing. Dago de Leeuw and colleagues at Philips Research Laboratories in Eindhoven, The Netherlands, have developed a new technique called photochemical patterning. In photochemical patterning, a light sensitive-polymer is exposed to ultraviolet light through a mask shaped in the form of the desired circuit. The ultraviolet light changes the polymer from a conducting state to a non-conducting state. In this process, the polymer’s resistance can increase as much as 11 orders of magnitude (100000000000). The advantage of this technique over the patterning techniques used for silicon is that it does not need any vacuum and can be used on flexible substrates. The problems with photochemical patterning are that it is not significantly cheaper than photolithography and etching used for silicon, and it can be used only for light-sensitive polymers. Different research groups have developed various techniques that have pros and cons compared to photochemical patterning. However, many of the techniques cannot print features that are small enough for electronic circuits. The critical length is the distance between the transistor’s source and drain, typically 0.01 mm. This is the distance that the field-induced charges have to travel. As the drive current and switching speed of the device depend on this distance, having too large of a distance reduces the capabilities of the device. Another technique that pursues quite a different approach is microcontact printing. Developed by the Bell Labs group, microcontact printing with rubber-like stamps can make small enough features. Scientists have used this technique to make a flexible display in which a transistor controls each pixel. The key point in developing this technique was using gold pads, instead of a polymeric material, to deposit the transistor’s source and drain. Even though this device is not completely plastic, it is a step toward that goal. When a special kind of ink was applied to a thin film of gold, it formed some sort of self-assembled layer on the gold, which then produced well-defined patterns and sharp edges. This provided the required resolution to make small enough features necessary for an electronic device having a reasonable speed. These two techniques show two important aspects of the problem. In photochemical printing, we have a device that is completely plastic and so has the important advantage of flexibility. However, it is not as cheap as it could be and does not have the required resolution. In the second technique, the outcome is not a 100 percent plastic device, so it is not as flexible as a purely plastic circuit. However, it can be manufactured very cheaply and has a better resolution (and thus a higher switching speed).

Conclusion

Many other approaches are being employed to develop this new and exciting technology. If plastic electronics does become standard for at least some applications, it probably will be a hybrid of these different techniques. If the optimistic group of scientists working on plastic electronics prove to be right, one day we might see TV screens curling around the walls of our rooms and even reloadable electronic newspapers that can be folded and carried like regular newspapers. Who knows what new inventions will come with this new technology?

References

• Garnier, F., (et al). Science 265 (1994): 1684-86.
• Gelinck, G., T. Geuns, and D. de Leuw. Applied Physics Letters 77 (2000): 406-8.
• Levi, Barbara G. ‘New Printing Technologies Raise Hopes for Cheap Plastic Electronics.’ Physics Today (February 2001). Online at: www.physicstoday.org/pt/vol-54/iss-2/p20.html.
• Nobel Focus: Electricity through Plastic.’ Physical Review Focus (24 October 2000). Online at: http://focus.aps.org/v6/st18.html.
• Scott, Campbell. ‘Electronics Put It on Plastics.’ Physics in Action. (October 1998). Online at: www.physicsweb.org/article/world/11/30/3/1.
• Voss, David. ‘Cheap and Cheerful Circuits.’ Nature 407 (28 September 2000).

But you don’t know what she did to me! Why didn’t he remember our anniversary? Why weren’t my parents more loving? Sound familiar? Of course, because we have all faced these or similar problems.

Most of us grew up learning that we should try to forgive others. Dr. Luskin, director and co-founder of the Standard University Forgiveness Project, has conducted several studies on forgiveness as a source of various medical and health benefits as well.

He writes: Scientific research clearly shows that learning to forgive is good for one’s health and well-being good for mental health and according to recent data good for physical health as well gratitude, faith, and care have a positive impact on cardiovascular functioning Almost uniformly, the forgiveness studies show positive results in psychological and emotional well-being. People who are taught to forgive become less angry, more hopeful, less depressed, less anxious, less stressed, more confident, and they learn to like themselves more (pp. 77-78).

Dr. Luskin’s main point is that forgiving others helps us lead a more satisfying and fulfilling life. Each of us stores pain from unrealized goals, failed relationships, personal failures, and so on. Over time, it begins to take over our lives and thwart our quest for happiness.

His techniques rest on several foundations, among them identifying your grievance story, starting with the small hurts and working up to the big ones, practicing forgiveness, realizing that forgiveness does not necessarily involve reconciliation or acceptance, understanding that you are the only one suffering, and concluding that it is time to let go and move on.

Some of his techniques are the following:

– PERT (The Positive Emotion Refocusing Technique). Do we watch the Grievance Channel, home of such popular re-runs as I Had Rotten Parents, My Life Was Unfair, or My Parents Mistreated Me? Why are we not switching (recognizing and taking responsibility for our situation) to the Gratitude, Beauty, Forgiveness, or Love channels?

Other elements of PERT are the breath of thanks. Breathe in and out slowly, be aware that you are breathing, and give thanks that you can breathe and are alive. Then apply the heart focus, by bringing to mind a very positive memory and allow the associated feelings of peace and love to engulf you.

– Challenging unenforceable rules. As we cannot control everything and are imperfect, others will continue to disappoint us. Why get mad at them for being human? We are not perfect, so why should we expect them to be perfect? In short, we need to hope for something instead of demand something of others and ourselves.

– HEAL. Hope (for a specific outcome in a specific situation), Educate (limited control results in something unexpected), Affirm (reconnect to your goal by affirming your positive intention), and Long-term (make a long-term commitment to your long-range well-being).

Dr. Luskin recommends practicing these exercises several times a day in a secluded place. Set aside about 15 minutes for each session, and work toward becoming a forgiving person. Acknowledge your submerged anger and pain, decide how to deal with these negative feelings that are harming your emotional balance and physical health, remember how much better you felt the last time you forgave someone, and then do it. This will transform you into someone who finds it natural to forgive and thereby deprive others of their negative power over you.

In our agitated world of ever-rising expectations, this book is just what we need. As Dr. Luskin shows, a dose of realism and forgiving people’s imperfections will lead each of us toward a more fulfilling life. And isn’t that what we all want?

There are many reasons why a developing baby may have congenital problems (Moore, 1989, p.lO8). Exposure to infections and certain drugs (most commonly, alcohol), chromosomal abnormalities and inherited congenital conditions have all been shown to disrupt normal fetal development. In this article we will concentrate on the diagnosis of chromosomal and genetic disorders during pregnancy.

PNT procedures and their interpretation can be extremely intimidating for parents. It is therefore important that tests are done only after a full explanation of the procedures involved and their possible consequences. The aim of PNT is to inform and prepare parents for the birth of an affected infant, so that they can choose between the possible courses of action (Aksoy, 1996). The possibilities will include: (1) in utero treatment; (2) delivery at a special centre for immediate postnatal treatment; and 3) termination of an affected fetus, i.e. abortion.

Over the years, professional standards and laws have evolved which influence the clinical application of PNT and help to tackle many of the complex ethical issues involved. There is little doubt that relatively non-invasive techniques whose primary purpose is to diagnose treatable disorders and then treat them, before or after birth, would be warmly welcomed by all, especially the parents. The fact is, however, that in practice PNT is generally being used to diagnose abnormality and then terminate the life of the unborn babies. The reality is that prenatal diagnosis rarely leads to fetal therapy

In what follows, we will try to explain the range of prenatal tests available and indications for their appropriate use. We will consider some of the technological advances on the horizon in this field of medicine, as well as some of the ethical dilemmas that arise.

Prenatal Diagnostic Tests

Prenatal diagnostic tests can be divided into two types, invasive and non-invasive. Non-invasive tests simply involve a blood sample taken from the pregnant woman or an ultrasound scan. Invasive tests on the other hand are more complicated and involve obtaining a sample of cells or tissue from the developing foetus, either by amniocentesis or chorionic villus biopsy. The samples obtained by invasive tests can be used, specifically to assess the fetal chromosome pattern, to determine if the fetus has a particular genetic mutation, or for a whole range of biochemical assays.

Maternal Blood Sampling. Between 15 and 19 weeks of pregnancy, the pregnant woman attending ante-natal clinic will be offered a blood test. The blood sample will be analysed to assess the level of three proteins, b human chorionic gonadotropin (b HCG), oestriol and a -fetoprotein (a FR). The three levels in combination with the mother’s age can be used to estimate the risk of the baby being affected by a chromosomal problem, especially Down’s syndrome (Wald and Cuckle, 1992, pS63). If the test result indicates a high level of risk, the mother will be offered further tests to assess the status of her baby.

Ultrasound Scan. Ultrasound uses high frequency waves to form a picture as the waves are reflected back by tissues of different density. The developing fetus grows in a liquid filled sac (amnion). As fluid shows black on the scan, this provides a good contrast with the fetal parts allowing high resolution images. Early in the first trimester an ultrasound scan can be used assess the viability of a fetus and to estimate its stage of development. Most women will be offered a formal high resolution scan at between 16 and 19 weeks (Sutton, 1990, pp.20- 1). The images from the scan will be the first time the expectant mothers see the baby. For many, this is a happy event; for the others it could be a very sad event if the scan indicates an abnormality.

Amniocentesis. In this test, done between 15 and 20 weeks of pregnancy (Cohen, 1990, pp.19- 20), a very fine needle is passed through the abdomen under ultrasound guidance, avoiding the fetus, and a sample of amniotic fluid containing fetal cells is withdrawn. The sample is cultured to grow more cells so that the chromosome pattern of the cells can be examined or DNA extracted for genetic analysis. This process can take three weeks, a period of considerable anxiety for the parents. There is also a small risk of miscarriage occurring after an amniocentesis.

Chorionic Villus Sampling. In this test, done in the same way as than amniocentesis but five weeks earlier, a sample of tissue is taken from the developing placental tissue. Both chromosomal and genetic analysis can be performed on this tissue, and the results are available quicker and at an earlier stage of the pregnancy than with amniocentesis. However, there is a higher miscarriage rate following chorionic villus sampling than amniocentesis (Boss, 1994).

Fetal Blood Sampling. Occasionally, when there is concern that a pregnant woman has been exposed to an infection early in her pregnancy, a sample of blood will be taken from the umbilical cord with a very fine needle under ultrasound guidance. This sample is used to assess if the fetus has become infected and at high risk of development problems following the maternal exposure.

New Advances

Advances in prenatal diagnosis have followed rapidly from technological improvements in ultrasound equipment, refinement and experience of current techniques, and the development of new tests. The aim of research in this area is to provide the earliest possible accurate information about the health of the developing baby, and to do so in the way safest for the expectant mothers and their babies. If the information is reassuring, the couple can enjoy the remainder of the pregnancy in the knowledge that everything will progress normally. However, if the result are unfavourable and an abnormality is diagnosed, earlier decisions about potential treatment or termination are possible and so may be less traumatic for those involved.

Fluorescent in situ Hybridisation (FISH). FISH is a technique which uses a specific DNA sequence as a probe to recognise its complementary sequence on a chromosome. The probe has a fluorescent tag attached which lights up when it is attached to the recognised chromosome segment. Recently FISH has been applied to analysis of amniocentesis samples to assess if an extra chromosome 21 is present or not in the cells. Because the amniocentesis cells do not require culturing for this technique the test results can potentially be available sooner than following standard amniocentesis.

Fetal Blood Cells in the Maternal Circulation. At about 6 weeks fetal blood cells can be found in a blood sample taken from a pregnant woman. These cells exists in very small numbers. Recent work has extracted and purified these cells to allow assessment of the fetal chromosome pattern and to determine if the fetus has a specific genetic mutation. Although this technique is very new it has the potential to make the currently used invasive techniques obsolete and will allow very early diagnosis.

Preimplantation Diagnosis. This procedure involves the use of technology developed with in vitro fertilisation (IVF). An oocyte is removed from the woman and brought into contact with spermatozoa from her partner under controlled conditions. One of the spermatozoa effects fertilisation to form a zygote. Following three stages of cell division (this eight-cell stage is termed, the blastocyst), one cell can be removed and used for analysis (Aksoy, 1997a). The DNA sequence of this cell can be determined to identify the presence or absence of a gene mutation that has caused illness in one of the parents. If the cell does not contain the mutation, the blastocyst can be implanted in the womans uterus (womb) to develop into a fetus which is unaffected by the condition that has affected other family members.

Human Genome Project. The aim of the Human Genome Project is to have identified the entire human DNA sequence (genome) by 2005. The extra information generated about specific genes and their association with specific disorders has the potential to expand dramatically the number of genetic tests available to couples with a family history of a genetic condition.

Ethical Issues

It is important to understand the purpose of prenatal diagnosis. It is done to provide parents with information about the health and development of their baby, not to provide them with a reason to have a termination of pregnancy. There are 180,000 terminations performed each year in the United Kingdom, of these 5000 are because of fetal abnormalities diagnosed by prenatal tests. Abortion is a serious problem itself in all regions of the world, developed and developing, and we discussed it in an earlier issue of this magazine (Aksoy 1997b). When prenatal tests reveal that a baby has health problems, parents face a number of difficult questions. Is any treatment available? What are the baby’s chances of survival? What would be the baby’s quality of life if he or she did survive? Some illnesses can be treated during pregnancy and after delivery. One of the main aims of fetal medicine is to develop therapies to treat fetuses and improve the survival. However, some conditions are fatal despite all treatment. In these circumstances couples sometimes take the extremely difficult decision to have a termination of pregnancy

For religious, moral or other reasons many couples opt not to have any tests performed during pregnancy. They feel that even if the results of any test indicated that their baby was affected by a serious condition they should and would continue with the pregnancy. It is important in each situation that the parents’ decisions are respected and supported. The parents need to be given appropriate guidance and counselling rather than be met with disapproval.

In some countries prenatal testing has been extensively used to determine the sex of the baby at an early stage, with the intention of ensuring that only male babies are born (Kusum, 1993). In the United Kingdom, as in many other places, prenatal diagnosis to determine fetal sex is deemed morally unacceptable. It is important that new advances in medicine are paralleled by an informed ethical debate. Prenatal tests should reflect what is appropriate within a society rather than just allowing what is technically feasible. A number of regulatory groups have been formed, including the Human Fertilisation and Embryology Authority (HFEA), to monitor and regulate new advances in this area.

In sum: prenatal diagnosis is a rapidly expanding area of medicine. New techniques are constantly being developed which are aimed at allowing earlier diagnosis, less invasive methods and, ultimately, treatment. It is important that developments are monitored and regulated to ensure that the techniques available are applied within an ethical framework.

REFERENCES

Aksoy, S. (1996) ‘Prenatal Testing: An Ethical Perspective’, The New Journal of Medicine, 13:2, pp.12-14.

Aksoy, S. (1997) ‘Moral Controversies on Preimplantation Genetic Testing’, paper presented at UNESCO Asian Bioetlncs Conference, Kobc-Japan, November 1997.

Aksoy, S. (1997), ‘Abortion: Mercy or Murder?’, The Fountain, 2:17 pp.32-5.

Atkins, A.F.J. and Hey, EN. (1991) ‘The Northern Regional Fetal Abnormality Survey’, in Drife, jO. and Donnai, D.(cds) Antenatal Diagnosis of Fetal Abnormalities, Springer-Verlag Ltd., London.

Boss, J.A. (1994) ‘First Trimester Prenatal Diagnosis: Earlier is not Necessarily Better’, JME, 20 pp.l46-5l. )

Cohen, L.G. (1990 Before Theýr Týme at Risk, American Association on Mental Retardation, Washington DC.

Kusum (1993) ‘The Use of Pre-natal Diagnostic Techniques for Sex Selection: The Indian Scene’, Bioethics, 7: 2/3 pp,149-65.

Moore, K.L. (1989) Before We Are Born: Basic Embryology and Birth Defects, WB. Saunders Comp., Philadelphia.

Sutton, A. (1990) Prenatal Diagnosis: Confronting the Ethical Issues, The Linacre Centre, London.

Wald, NJ. and Cuckle, H.S. (1992) ‘Biochemical Screening’, in Brock, D.J.H., Rodeck, C.H. and Ferguson-Smith, MA.(eds) Prenatal Diagnosis and Screening, Churchill Livingstone, Edinburgh.

Two of the ways that people demonstrate their intelligence are communication and learning. Effective communication requires skills in the analysis of messages received and in the synthesis of messages transmitted. The ‘message’ may be a letter, an article, a poem, musical composition, painting, or indeed any other form of communication. In order to communicate effectively, one must be able to synthesize a message. To do that well needs the ability to make judgements about the level of sophistication of the recipient, careful use of the language of the communication and appropriate speed of presentation. Understanding a message also requires intelligence. A listener needs to know the meaning of most of the words being used and to have some knowledge of the context of the message.

The ability to learn and understand is considered by many as a vital component of intelligence and perhaps a definition of it.

‘Learning denotes the changes in a system that are adaptive in the sense that they enable the system to do the same task or tasks drawn from the same population more effectively the next time.’ ‘When a computer system improves its performance at a given task over time, without re-programming, it can be said to have learned something.’

There are many definitions for Artificial Intelligence or AI. One is: ‘the study of mental faculties that encompasses computational techniques for performing tasks which apparently require intelligence when performed by humans’. The term Artificial Intelligence was first used by John McCarthy in 1956. Since then, and especially in the last two decades, there has been a growing amount of research on AI. With many scientists, engineers and programmers either studying AI techniques or building AI systems or both, national and international organizations dedicated to AI have been formed and are growing. In the USA, for example, there is now an American Association for Artificial Intelligence. A number of AI applications in the medical and engineering fields have been successful and so established AI as a promising area of study with specialist sub-sectors, namely robotics, machine vision, natural language processing, machine learning, expert systems and neural networks.

Looked at closely, each of these sub-sectors turns out to be an attempt to imitate some human organs or faculties. Robotics, for example, aims to imitate what a human being can do using limbs, hands and feet, in co-ordination with the eye and brain-which is what ‘vision systems’ aims to copy. ‘Natural language processing’ is the development of systems that perform tasks using the kind of language that humans use in routine interactions. ‘Machine learning’ aims to make computers learn how to use computational techniques. An ‘expert system’ is built to house and sift large amounts of human knowledge in order to give advice in particular circumstances just as a human expert would do. And ‘neural networks’, as the name suggests, try to reproduce in part the human nervous system.

Even though there have been many successful applications devel

oped in these areas, AI, compared to human intelligence, is still in its infancy. Everyday observation shows that the modest brains of lower animals can perform tasks that are far beyond the range of even the largest and fastest modern electronic computers. Just imagine that any mosquito can fly around at great speed in unknown territory without bumping into objects blocking its path. And a frog’s tongue can catch these insects in full flight within a split second.

At present the number of processors which can be built for specialized parallel hardware is somewhere between 50,000 and 1 million. Compared to the number of neurones in the human brain this number is extremely small. The total number of neurones in the human central nervous system can only be estimated; some estimates put the number about 1011 combined with the average number of synapses per neurones this yields a total of about 1015 synaptic connections in the human brain, the majority of which are developed within a few months after birth.

Comparative facts like those show that there is a lot still to be learnt from human beings, animals and other creatures. When somebody looks at an intelligent system-say a vision system or an intelligent robot, they will remark that it is amazing. Indeed it is amazing to see a system correctly inspect and classify many products in the space of a second. Such systems are already installed and in operation on production lines and their performance is quite good. There are several expert systems in use in real world tasks. The importance of these systems derives from their artificial intelligence which in turn derives from human intelligence. A man-made system can be very smart and artificially very intelligent but no such system so far has been awarded a prize for its innovative abilities. It is the human being who made it who wins the prize. What is prized, what is of higher worth, is not the system but its maker or builder. What about the fantastic system that is a human being? Just as an AI system is strong evidence of the existence of its maker, namely, a human being, so too human beings and other natural systems are more and stronger evidence for the existence of their Maker. To make an artificial intelligence one must first have natural or real intelligence. That means the Maker of human beings and all other creatures has a supernatural power over all of them. Just as no one could say that AI systems build themselves, it should be impossible to say the same for human beings and other creatures. This supernatural power is the All-Mighty Creator. As we have seen, it is not the system but its maker that is prized and respected. Self-evidently, the One who created human intelligence is to be prized and respected more than anything or anyone else. God says in the Qur’an: ‘We have indeed created man in the best of moulds’ (95.3). As we believe that there is definitely a maker of an AI system, why should it be hard to believe that there is a Maker of human being?

References

• CHARNIAK, E. and McDERMOTT, D., (1985) Introduction to Artificial Intelligence, Addison-Wesley Publishing Company.
• HANCOX, P.J., MILLS, W.J. and REID, B. (1990)
• Artificial Intelligence/Expert Systems, Ergosyst Associates, London.
• MULLER, B. and REINHARDT, J. (1990) Neural Networks. An Introduction, Springer Verlag.
• FORSYTH, R. and RADA, R. (1986) Machine Learning:
• Applications in Expert Systems and Information Retrieval, Ellis Horwoood, Chichester.

It is an aspect of the Divine Mercy that everyone of those actions which a practising Muslim is required to do in a particular way and with a particular intention combines a moral-spiritual value with a utilitarian value. For example, it has been objectively demonstrated that, if done properly and regularly, wudu contributes to having clean, healthy skin (see Fountain, 1, pp.33-6). Of course, that is not the point of doing wudu. The point of doing wudu is to get oneself in a state of readiness for worship–for the explicit occasions such as doing the prayer or reading the Qur’an, or, more generally, for initiating any action which the Muslim hopes may be acceptable as worship. The practical benefit of doing the prescribed acts in the prescribed manner is not what makes them acceptable or worthy as acts of worship. If a non-Muslim does the same actions, copying every detail with exact care, or if a Muslim does them but without the proper intention, only the practical benefits are to be hoped for: it is the intention that earns the moral reward. The practical benefit can then be understood as the additional (and not the essential) merit of the prescribed actions–a part of the rationality, the universality, the sheer ease of Islam.

It is in this general perspective that we can best grasp the benefits of slaughtering animals according to the manner prescribed to Muslims. The four conditions of it, after the condition that the animal be one lawful for Muslims to eat, are: 1) that the person doing the slaughtering is a Muslim of sound mind (not mad, not drunk, not legally a minor); 2) that the name of Allah is pronounced before any incision is made; 3) that the instrument used is extremely sharp; 4) that the incision is made in the neck just below the glottis, cutting the throat and oesophagus, the jugular vein and the carotid artery, but (and this is most important) without cutting the spinal cord or severing the head from the body. We should add that it is improper to interfere with the carcass (for example, to begin skinning or dismembering the animal) before convulsions have ceased and its life fully departed.

Plainly, the first and second conditions have to do with the intention, the state of mind, of the person doing the slaughtering. The subsequent conditions have to do with the practical details of carrying out the intention. Studied objectively (that is, without the prejudice of anti-Muslim sentiment), the practical details are found to be the most reliable way of producing wholesome meat without causing undue distress or pain to the animal.

The sharpness of the instrument guarantees the speed of the incision. The speed ensures that, just as when a man cuts himself shaving with a razor, the incision itself is painless (even if, much later, the wound may not be). The particular incision, the cutting of the major blood vessels in the neck, produces an immediate stunning effect: it causes the most massive possible haemorrhaging of blood which, by straightaway cutting the supply of blood to the brain, renders the animal unconscious. However, because the spinal cord is not (must not) be cut, the brain continues to send its electrical impulses to the heart, urgent messages demanding the supply of blood: that is why the animal convulses violently, pumping blood ever more vigorously and so speeding up the haemorrhaging process, until life leaves the body. Certainly, these violent convulsions (the result of rapid muscle contraction) look distressing, but in fact they are painless to the animal which, as we have noted, is unconscious during this process. The body’s own mechanism is thus used to rapidly drain the carcass of blood. Not until the draining of blood is finished is it permissible to proceed with skinning or dismembering the carcass. Why?Blood carries nutrients round the body to feed its tissue cells and carries away the waste product left after the nutrients have been extracted; after processing in the kidneys the blood is purified of these wastes and again circulated. The same blood also carries organisms which are responsible for disease but which in a healthy living body do not present as clinical symptoms. Separated from the body, these disease-carrying organisms are indeed harmful and it is for that reason (among others) that the consumption of blood is forbidden. Moreover, blood in a carcass is the principal breeding- ground for all kinds of bacteria. The failure to drain a carcass adequately renders it liable to rapid putrefaction, making the meat unfit for consumption. The convulsions of the slaughtered animal are the most efficient and (despite appearances) the most painless method of pumping the carcass free of blood.

It is obvious that the methods used for animal slaughter in the industrialized countries are designed for maximum ‘productivity’. That is why various mechanical techniques are used to ‘stun’ the animals in order to speed up the mechanical handling of them. The argument that these techniques are more humane is, frankly, dishonest propaganda put about by the meat trade. There is a great difference between paralysis and unconsciousness: the stunning techniques used, unless very precisely calculated and very accurately administered to each individual animal, may cause paralysis rather than unconsciousness. This means that the animal is motionless (paralysed) and so easy to harness and hoist up, and it looks as if it is not suffering; in fact, it may be quite conscious and in terrible pain. Further, because it is paralysed, the animal’s nervous system is largely disabled so that drainage of blood has to be achieved by rapid, total dismemberment of the carcass by machines–blood is lost by gravity, not by the natural pumping action described above. However, drainage is not as thorough by this method which severely affects the wholesomeness, colour and taste of the meat. Readers of the Qur’an (5.4) will know that (as well as blood and carrion) the meat of animals harassed or strangled or clubbed to death is haram the reason (among others) is that, in a condition of terror, hormones and chemicals are released into the body and bloodstream which distress the tissues and render them unfit for consumption. The Western techniques of stunning before slaughter, because they do not guarantee unconsciousness and do not minimize the terror suffered by the animal, are not acceptable under Islamic rules of slaughter. (Details of the legislation in a number of Western countries–following controlled experiments and government surveys of stunning and slaughtering techniques with different animals–may be consulted in Karodia, 1988.)Let us turn to the two first conditions for lawful slaughtering–namely, that the person be a Muslim of sound mind, that the name of Allah be pronounced. The person must be conscious of what he or she is doing and do it, as it were, in the full awareness that Allah has permitted it and witnessed it. It does not take much imagination to work out that the act of slaughtering an animal is, by this means, individualized: the mechanized, assembly-line taking of life is not acceptable. It may well be that the further preparation of the meat for sale and consumption can (perhaps should) be mechanized so as to increase efficiency and reduce waste. But the act of taking of sentient life, allowed for the purposes of food, must be done mindfully, and may not be handed over to a machine. The moral purpose of these conditions is that human beings do not become arrogant in the dominion they are granted over the animals they farm or hunt for food. That purpose becomes clearer when we recall that there are further stipulations in the Sunna the knife must not be sharpened in front of the animal; one animal should not be slaughtered in sight of another; the animal should be (as a vet does when examining an animal) lain on its side, soothed, and held still before the knife is applied.

All these conditions taken together mean an individual and collective mindfulness, a taking of responsibility. Because the laws of Islam are moral laws, they are not required to be applied where they cannot be applied: something that is impossible to do cannot be commanded to be done–except by mad tyrants. Thus it is that, under the direst necessity, without desiring the unlawful, the unlawful is also permitted. How then is it that Muslims will not understand the mercy, the ease, of that which is prescribed for them to do, but will instead –alas too often–fall under the sway of alien persuasions and do what they must only half-heartedly, sometimes even becoming so impudent as to complain of what benefits them? How should such ingratitude be rewarded except by the reward of all moral stupidity–that, in practice, Muslims come to accept that what is good is bad, and what is bad good? The occasion of ‘Id al-Adha, the ‘Id of sacrifice, is an occasion of mercy remembered and celebrated with thanksgiving and repentance. Let it be, also, an occasion to remember our indebtedness to Islam, for the wisdom, the sanity and spirituality, of what by Allah (through the example and teaching of His Messenger, upon him be peace) is prescribed to us to do.

REFERENCE

KARODI,. A.M. (1988) ‘The Muslim methods of animal slaughter and its scientific and social relevance in non-Muslim societies’, Journal of the Institute of Muslim Minority Affairs, 9 (l),pp.173-85.