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- Associate Professor of Medicine
- Member of the Duke Cancer Institute
- Affiliate of the Regeneration Next Initiative
From 1998 to antibiotic abbreviation order 50 mg minocycline visa 2002 antibiotic 30s ribosomal subunit discount minocycline 50mg fast delivery, the incidence rate for pesticide exposure- related illness was 7 infection under crown buy generic minocycline canada. From 1998 to 2002, there were 2,593 pesticide-related acute illnesses reported; only 3 cases were highly severe (0. Of the 278 cases deemed moderate or high severity, 135 reported respiratory symptoms associated with their pesticide-related illness. Further research on the impact of exposure, types of chemicals and other fac- tors could lead to improvements in pesticide-use policies. They are more likely to be employed in industries such as agriculture, mining (coal, silica), textiles, demolition, manufacturing (asbestos) and service maintenance (cleaning supplies). One study found that over the 25-year period following the end of mining for the Navajo Nation, uranium mining was greatly linked to lung cancer among Navajo men in New Mexico and Arizona due to exposure to radon byproducts. When uranium decays, it produces radium; when the radium then decays, it produces radon. Sixty-seven percent of the lung cancers among Navajo men occurred in former uranium miners. The risk of developing lung cancer is over 28 times greater for Navajo miners exposed to uranium than those not ex- posed. This represents a unique example of how occupational exposure to risk factors accounts for the majority of lung cancer seen in a population. Please view the State of Lung Disease in Diverse Communities 2007 report at. The highest total for days away from work due to respiratory illnesses was in the service sec- tor (750), though the mining industry had the highest rate at 6. Department of Energy, improving buildings and indoor environments could reduce health care costs and sick leave and increase work- er performance, resulting in an estimated productivity gain of $30 billion to $150 billion annually. For the United States, the corresponding annual health care savings, plus productivity gains, include: $6 billion to $19 billion from reduced lung disease, $1 billion to $4 billion from reduced allergies and asthma, $10 billion to $20 billion from reduced sick building syndrome symptoms and $12 billion to $125 billion from direct improvements in worker performance unrelated to health. The American Lung Association supports researchers studying the causes of and cures for occupational lung diseases. One such research project is studying proteins that are involved in wound repair in the lungs. Toxins and pollutants are constantly contacting the epi- thelium, a layer of cells inside the lung that seal out such hazards. Studying how the lungs repair this cell damage will increase understanding of injury response and lung disease prevention. Want to learn more about research funded by the American Lung Association on occupational lung diseasesfi A laboratory at the University of Iowa is hoping to improve knowledge of treatment for asbestosis and other pulmonary fbrosis diseases by studying the role of certain cells in the devel- opment of asbestosis. A host of other studies also are focusing on pulmonary fbrosis and obstructive lung diseases. Thousands of advocates have joined the American Lung Association to tell Con- gress that more needs to be done to fght occupational lung diseases. It can occur in response to a variety of associated disorders and taking certain medicines. At rest, blood pressure in a normal pulmonary artery is 15 mmHg (15 millimeters of mercury), and rises during exercise. Fenfuramine and dexfenfu-5 ramine were taken off the market in September 1997 after being linked to heart valve damage. It is seen more commonly in full-term infants who have underlying diseases such as re- spiratory distress, sepsis or lung hypoplasia (below normal size or immature). As the right ventricle gets larger, the patient can develop irregular heart rhythms, which can lead to sudden death. Even when the disease has progressed, the symptoms may be confused with other conditions that affect the heart and the lungs. Anticoagu- lants or blood thinners also may be used to keep blood from clotting internally; warfarin is the recommended type. These drugs include prostanoids, endothelin receptor antagonists and phosphodiesterase-5 inhibitors. The diagnosis of persistent pulmonary hypertension of the newborn is usually made within 24 hours after birth.
Increased systemic vascular resistance rate reduces cardiac output simply because of fewer cardiac cycles antimicrobial ointment brands 50 mg minocycline for sale. Contractility is the natural ability of cardiac muscle fibers to virus c buy cheap minocycline 50 mg on-line Preload is the volume of blood in the ventricles at end-diastole (just shorten during systole antibiotics for dogs clavamox purchase minocycline 50 mg without prescription. The blood in the ventricles exerts pressure on rial pressures and eject blood during systole. Diastolic filling is impaired by • Safe roads or neighborhoods for walking decreased ventricular compliance. As a result, maximal heart rate, car- such as a cardiac rehabilitation program or structured exercise diac reserve, and exercise tolerance are reduced. Teach patients how to adapt to changes in cardiovascular the older adult with heart failure may not be dyspneic, instead pre- function associated with aging, such as the following: senting with weakness and fatigue, somnolence, confusion, disori- • Allowing longer warm-up and cool-down periods during exercise entation, or worsening dementia. Dependent edema and respiratory • Engaging in regular exercise such as walking five or more times crackles may or may not indicate heart failure in older adults. Limited mobility or • Maintaining adequate fluid intake visual acuity may cause the older adult to rely on prepared foods • Preventing infection through pneumococcal and influenza that are high in sodium such as canned soups and frozen meals. Ventricular remodeling occurs as the heart chambers and Decreased cardiac output initially stimulates aortic barorecep- myocardium adapt to fluid volume and pressure increases. Norepinephrine increases heart rate and contractility by stimu- additional stretch causes more effective contractions. Cardiac output improves as both heart hypertrophy occurs as existing cardiac muscle cells enlarge, in- rate and stroke volume increase. Norepinephrine also causes arterial creasing their contractile elements (actin and myosin) and force and venous vasoconstriction, increasing venous return to the heart. Increased venous return increases ventricular filling and myocardial Although these responses may help in the short-term regulation stretch, increasing the force of contraction (the Frank-Starling mech- of cardiac output, it is now recognized that they hasten the deterio- anism). Overstretching the muscle fibers past their physiologic limit ration of cardiac function. Heart failure pro- Blood flow is redistributed to the brain and the heart to main- gresses due to the very mechanisms that initially maintained circula- tain perfusion of these vital organs. Aldosterone stimulates Beta-receptors in the heart become less sensitive to continued sodium reabsorption in renal tubules, promoting water retention. In contrast, alpha-receptors on constriction and salt and water retention, with a resulting increase peripheral blood vessels become increasingly sensitive to persis- in vascular volume. Increased ventricular filling increases the force tent stimulation, promoting vasoconstriction and increasing after- of contraction, improving cardiac output. Chapter 31 • Nursing Care of Patients with Cardiac Disorders 923 Initially, ventricular hypertrophy and dilation increase cardiac affected. Many patients have components of both systolic and dia- output, but chronic distention causes the ventricular wall eventually stolic failure. The ventricles continue to dilate to accommodate the excess right ventricle may be primarily affected. In chronic heart failure, fluid, but the heart loses the ability to contract forcefully. Coro- muscle may eventually become so large that the coronary blood sup- nary heart disease and hypertension are common causes of left-sided ply is inadequate, causing ischemia. Left-sided heart failure also can lead to right- pathway is continually stimulated. This mechanism ultimately raises sided failure as pressures in the pulmonary vascular system increase the hemodynamic stress on the heart by increasing both preload with congestion behind the failing left ventricle. As heart function deteriorates, less blood is delivered As left ventricular function fails, cardiac output falls. Ischemia and necrosis of the in the left ventricle and atrium increase as the amount of blood re- myocardium further weaken the already failing heart, and the cycle maining in the ventricle after systole increases. Increased pressures in this normally its output to meet metabolic needs of the body, increasing the cardiac low-pressure system increase fluid movement from the blood vessels into interstitial tissues and the alveoli (Figure 31–1 •).
The sartorius (femoral nerve antibiotic resistance is ancient cheap minocycline online master card, L2—L3) antibiotic x 14547a purchase 50 mg minocycline with visa, the longest muscle in the body virus or bacteria generic 50 mg minocycline fast delivery, has a complex set of actions. It is an abductor, flexor, and lateral rotator of the hip and a flexor and medial rotator of the knee. The Knee Joint the major movements that take place at the knee joint are flexion and extension. The movement of internal and external rotation of the lower leg at the knee is not clinically relevant. Flexion of the knee is carried out primarily by the hamstring muscles (biceps femoris, semimembranosus, and semitendinosus). Other muscles (popliteus, gracilis, sartorius, and gastrocnemius) may play a contributory role. The belly of the long head overlies the short head except just above the popliteal fossa. Both heads are innervated by the sciatic nerve (L5, S1-S2), but the long head is supplied by the tibial division and the short head by the peroneal division. The innervation of the short head by the peroneal division is important in distinguishing lesions involving the peroneal nerve at the knee from those involving the peroneal division of the sciatic, which may be otherwise inseparable. Involvement of the short head is not detectable by physical examination but can be detected electromyographically. The common peroneal nerve at the knee lies just medial to the biceps femoris tendon. The semimembranosus and semitendinosus muscles (internal or medial hamstrings) are supplied by branches of the sciatic nerve (L5, S1-S2). With the knee in partial flexion, the patient resists the examiner’s attempts to straighten the knee. Another test is to have the prone patient attempt to maintain both knees flexed at about 45 degrees from horizontal with the feet slightly apart. Examination of knee flexion with the patient prone makes it easier to see and palpate the muscle contractions and lessens the likelihood of misinterpretation due to simultaneous action of the hip flexors. The sartorius may be examined by having the patient attempt to flex the knee against resistance with the hip flexed and rotated laterally (Figure 27. The prone patient attempts to maintain flexion of the leg while the examiner attempts to extend it; the tendon of the biceps femoris can be palpated laterally and the tendons of the semimembranosus and semitendinosus, medially. With the thigh flexed and rotated laterally and the knee moderately flexed, the patient attempts further flexion of the knee against resistance. It is composed of four large muscles: rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius, which are united into a common tendon inserted into the upper border of the patella. It is capable of generating as much as 1,000 pounds of force—three times more than the hamstrings. The rectus femoris originates from the ilium and runs straight down the middle of the thigh. The other three muscles originate from the shaft of the femur and only cross the knee joint. Since the rectus femoris also crosses the hip, it serves as a hip flexor as well as a knee extensor. The vastus medialis is sometimes divided into two parts: vastus medialis longus and vastus medialis oblique. Although the oblique head is often examined electromyographically, it in fact is the only portion of the quadriceps that is incapable of extending the knee. The quadriceps may be tested when the patient, sitting or supine, attempts to extend the knee against the examiner’s resistance (Figure 27. The quadriceps is so powerful it is nearly impossible to overcome in the normal adolescent or adult except by taking extreme mechanical advantage. A sometimes useful technique for testing knee extension is the “barkeeper’s hold,” a hold usually applied to the elbow to control unruly patrons. To examine the right quadriceps, the examiner, standing on the outer aspect of the knee and reaching around from the inner aspect, places his left elbow, forearm pronated, beneath the patient’s flexed knee, puts his right hand as far down on the shin as possible, and then grips his right forearm with his left hand, locking the patient’s leg in a vice from front and back. The examiner then pulls upward with the elbow while pushing downward with the hand as the patient tries to extend his knee (Figure 27. The supine patient attempts to extend the leg at the knee against resistance; contraction of the quadriceps femoris can be seen and palpated. The patient will have marked difficulty in rising from a kneeling position and in climbing stairs; he can walk backward, but has difficulty walking forward.
And so something occurred which was equivalent to bacteria zebra purchase minocycline 50 mg amex an assertion that at some time in the past I had doubted the real existence of the Acropolis which antibiotics for uti while trying to conceive discount 50mg minocycline fast delivery, however antibiotics for sinus infection augmentin cheap 50mg minocycline with visa, my memory rejected as being incorrect and, indeed, impossible. A Disturbance Of Memory On the Acropolis 4828 the two distortions involve two independent problems. Without for the moment particularizing as to how I have arrived at the idea, I will start from the presumption that the original factor must have been a sense of some feeling of the unbelievable and the unreal in the situation at the moment. I could not account for this doubt; I obviously could not attach the doubt to my sensory impressions of the Acropolis. But I remembered that in the past I had had a doubt about something which had to do with this precise locality, and I thus found the means for shifting the doubt into the past. I did not simply recollect that in my early years I had doubted whether I myself would ever see the Acropolis, but I asserted that at that time I had disbelieved in the reality of the Acropolis itself. It is precisely this effect of the displacement that leads me to think that the actual situation on the Acropolis contained an element of doubt of reality. I have certainly not yet succeeded in making the process clear; so I will conclude by saying briefly that the whole psychical situation, which seems so confused and is so difficult to describe, can be satisfactorily cleared up by assuming that at the time I had (or might have had) a momentary feeling: ‘What I see here is not real. I made an attempt to ward that feeling off, and I succeeded, at the cost of making a false pronouncement about the past. They are spoken of as ‘sensations’, but they are obviously complicated processes, attached to particular mental contents and bound up with decisions made about those contents. They arise very frequently in certain mental diseases, but they are not unknown among normal people, just as hallucinations occasionally occur in the healthy. Nevertheless they are certainly failures in functioning and, like dreams, which, in spite of their regular occurrence in healthy people, serve us as models of psychological disorder, they are abnormal structures. These phenomena are to be observed in two forms: the subject feels either that a piece of reality or that a piece of his own self is strange to him. In the latter case we speak of ‘depersonalizations’; derealizations and depersonalizations are intimately connected. There is another set of phenomena which may be regarded as their positive counterparts what are known as ‘fausse reconnaissance’, ‘deia vu’, ‘deja raconte’ etc. A naively mystical and unpsychological attempt at explaining the phenomena of ‘deja vu’ endeavours to find evidence in it of a former existence of our mental self. Depersonalization leads us on to the extraordinary condition of ‘double conscience’, which is more correctly described as ‘split personality’. But all of this is so obscure and has been so little mastered scientifically that I must refrain from talking about it any more to you. A Disturbance Of Memory On the Acropolis 4829 It will be enough for my purposes if I return to two general characteristics of the phenomena of derealization. The first is that they all serve the purpose of defence; they aim at keeping something away from the ego, at disavowing it. Now, new elements, which may give occasion for defensive measures, approach the ego from two directions from the real external world and from the internal world of thoughts and impulses that emerge in the ego. It is possible that this alternative coincides with the choice between derealizations proper and depersonalizations. There are an extraordinarily large number of methods (or mechanisms, as we say) used by our ego in the discharge of its defensive functions. An investigation is at this moment being carried on close at hand which is devoted to the study of these methods of defence: my daughter, the child analyst, is writing a book upon them. The most primitive and thorough-going of these methods, ‘repression’, was the starting point of the whole of our deeper understanding of psychopathology. Between repression and what may be termed the normal method of fending off what is distressing or unbearable, by means of recognizing it, considering it, making a judgement upon it and taking appropriate action about it, there lie a whole series of more or less clearly pathological methods of behaviour on the part of the ego. You remember the famous lament of the Spanish Moors ‘Ay de mi Alhama’, which tells how King Boabdil received the news of the fall of his city of Alhama. But he will not ‘let it be true’, he determines to treat the news as ‘non arrive’. The verse runs: ‘Cartas le fueron venidas que Alhama era ganada: las cartas echo en el fuego, y al mensajero matara.
He certainly must have brought a retinue with him his closest followers antibiotics sinusitis buy minocycline line, his scribes virus 5 hari order minocycline online pills, his domestic servants virus 32 removal purchase minocycline 50mg without prescription. The tradition which alleges that Moses was a Levite seems to be a clear distortion of the fact: the Levites were the followers of Moses. This solution is supported by the fact which I have already mentioned in my earlier essay that it is only among the Levites that Egyptian names occur later. They multiplied in the course of the next generations, became fused with the people they lived among, but remained loyal to their master, preserved his memory and carried out the tradition of his doctrines. At the time of the union with the disciples of Yahweh they formed an influential minority, culturally superior to the rest. Moses And Monotheism 4869 I put it forward as a provisional hypothesis that between the fall of Moses and the establishment of the new religion at Kadesh two generations, or perhaps even a century, elapsed. I see no means of deciding whether the Neo-Egyptians (as I should like to call them here) that is, those who returned from Egypt met their tribal kinsmen after the latter had already adopted the Yahweh religion or earlier. What happened at Kadesh was a compromise, in which the share taken by the tribes of Moses is unmistakable. Here we may once again call on the evidence afforded by circumcision, which has repeatedly been of help to us, like, as it were, a key-fossil. This custom became obligatory in the Yahweh religion as well and, since it was indissolubly linked with Egypt, its adoption can only have been a concession to the followers of Moses, who or the Levites among them would not renounce this mark of their holiness. So much of their old religion they wished to rescue, and in return for it they were prepared to accept the new deity and what the priests of Midian told them about it. We have already mentioned that Jewish ritual prescribed certain restrictions on the use of God’s name. It is tempting to bring this prescription into our context, but that is only a conjecture without any other basis. We do not understand why it was revived precisely in the Jewish Law; it is not impossible that this happened under the influence of a fresh motive. There is no need to suppose that the prohibition was carried through consistently; in the construction of theophorous personal names that is, in compounds the name of the God Yahweh might be freely used. As we know, critical Biblical research supposes that the Hexateuch has two documentary sources. These are distinguished as J and E, because one of them uses ‘Jahve’ as the name of God and the other ‘Elohim’: ‘Elohim’, to be sure, not ‘Adonai’. But we may bear in mind a remark by one of our authorities: ‘The different names are a clear indication of two originally different gods. Moses And Monotheism 4870 We brought up the retention of circumcision as evidence for the fact that the founding of the religion at Kadesh involved a compromise. We can see its nature from the concordant accounts given by J and E, which thus go back on this point to a common source (a documentary or oral tradition). Its leading purpose was to demonstrate the greatness and power of the new god Yahweh. Since the followers of Moses attached so much value to their experience of the Exodus from Egypt, this act of liberation had to be represented as due to Yahweh, and the event was provided with embellishments which gave proof of the terrifying grandeur of the volcano god such as the pillar of smoke which changed at night into a pillar of fire and the storm which laid bare the bed of the sea for a while, so that the pursuers were drowned by the returning waters. This account brought the Exodus and the founding of the religion close together, and disavowed the long interval between them. So, too, the law-giving was represented as occurring not at Kadesh but at the foot of the Mount of God, marked by a volcanic eruption. This account, however, did grave injustice to the memory of the man Moses; it was he and not the volcano god who had liberated the people from Egypt. So a compensation was owing to him, and it consisted in the man Moses being transferred to Kadesh or to Sinai-Horeb and put in the place of the Midianite priests. We shall find later that this solution satisfied another imperatively pressing purpose. In this manner a mutual agreement, as it were, was arrived at: Yahweh, who lived on a mountain in Midian, was allowed to extend over into Egypt, and, in exchange for this, the existence and activity of Moses were extended to Kadesh and as far as the country east of the Jordan. Thus he was fused with the figure of the later religious founder, the son-in-law of the Midianite Jethro, and lent him his name of Moses. Of this second Moses, however, we can give no personal account so completely was he eclipsed by the first, the Egyptian Moses unless we pick out the contradictions in the Biblical description of the character of Moses. He is often pictured as domineering, hot- tempered and even violent, yet he is also described as the mildest and most patient of men. These last qualities would evidently have fitted in badly with the Egyptian Moses, who had to deal with his people in such great and difficult matters; they may have belonged to the character of the other Moses, the Midianite.
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