By V. Kadok. Wilmington College, New Castle Delaware. 2018.
If you are not already familiar with one of these packages purchase ginette-35 2mg otc, we recommend that you enrol in a short course to learn how to use it well discount 2mg ginette-35 visa. You will also be able to produce handouts cheap ginette-35 2mg without a prescription, notes, and multi-media presentations incorporating pictures, movies and sound as well as text and diagrams of many kinds. Your finished work can be presented as slides and overheads using video projectors or standard equipment, via the Internet, and on desktop computers. The time required to learn to use a package will pay handsome dividends and open up a range of possibilities for you to make high quality materials. When making overhead transparencies using this kind of software, remember the principle of simplicity – avoid the risk of overpowering your students with complex type- faces, distracting background designs and inappropriate colours. Learn some simple concepts of presentation design as well as how to master the technology. Other uses of the overhead projector There are other, less orthodox ways in which you can use the overhead projector. Silhouettes of cardboard cut-outs or solid objects can be projected on to the screen. Transparent or translucent materials such as liquids in test tubes or biological specimens mounted on, or contained in, clear containers can also be prepared. It is usual to place the projector so that it is adjacent to the lectern or table from which you are working. Ensure that the projected image is square on the screen and free from angular and colour distortions. Angular distortions in the vertical axis can sometimes be overcome by tilting the top of the screen forward. Colour distortions, such as red or blue in the corners of the projected image, can usually be remedied by making an adjustment to the lamp. It is important to turn the electricity off at the power point before the adjustment is attempted. Whenever a projector is moved, or before a presentation is commenced, the focus and position of the image must be checked. Once this is done, it is usually unnecessary to look at the screen again, particularly if you use a pen or pointer directly on the transparency. If you wish to mask out part of the transparency, place a sheet of paper between the film and the glass stage of the projector. The weight of the transparency should prevent the paper from moving or falling away. Remember to allow students plenty of time to read what you have projected. One way is to read carefully the transparency to yourself word for word. As well, make sure that anything you have to say complements the transparency. Do not expect 171 students to listen to you and to look at something on the screen that is only vaguely related to what is being said. It is advisable to have the lamp on only when a transparency is being used in your teaching otherwise the projected image or the large area of white light will distract the students’attention. THE 35 MM SLIDE PROJECTOR Much of what has been said about the overhead projector applies to slide projection. However, you will recognize that there are important differences between the two and that one of these is that full-colour images can be used in slides. This may be an advantage but with some material it may also be a disadvantage, unless the students’ level of understanding is sufficient to enable them to see what is relevant and pertinent in the material you are using. Slide interpretation can be aided by including in the photograph an appropriate reference point or a scale. Slide preparation The major error in slide making is to assume that legibility in one medium, such as a table in a book or a journal, ensures slide legibility.
But he also concluded that he thought Gordon was well on his way to becoming truly healthy buy ginette-35 2mg otc, perhaps for good discount ginette-35 2 mg with amex. Conclusion Somatization disorder is a difﬁcult diagnosis and one that should not be made without proper evaluation by an experienced psychiatric expert 2 mg ginette-35 fast delivery. Nor should this diagnosis be assigned simply because someone has a mystery ail- ment that has not yet been identiﬁed. In Gordon’s case, his orthopedic sur- geon had studied much about this illness after the pioneering work that had been done by John Sarno, M. That, together with Gordon’s lifelong pattern of illnesses, pointed the physician in the direction of a somatization disorder diagnosis. Finally, Gordon’s history of sexual abuse coupled with his high func- tioning in all areas made his doctor wonder what Gordon did and still does with the rage and emotional pain that would be a natural by-product of his history of sexual abuse. That rage needed an outlet, and based on Gordon’s history, physical disorders may have been the only acceptable, albeit painful, way to release his rage. Famed psychotherapist Alice Miller, in her book Thou Shalt Not Be Aware: Society’s Betrayal of the Child summed it up this way: “The truth about our childhood is stored up in our body and although we can repress it, we can never alter it. Our intellect can be deceived, our feelings manip- ulated, our perceptions confused and our body tricked with medication. Of course, as we have said many times during the course of this book, it is easy for a doctor who does not have a diagnosis for your mystery mal- ady to say it’s “stress” or “in your mind,” but sometimes it really is. If you suspect you might have somatization disorder, do the modiﬁed version of Could Your Symptoms Be All (or Partly) in Your Mind? If you are truly looking for wellness, you must be willing to go deep within and ask yourself the “hard questions. Although there are countless books on them, childhood diseases are not always easily identiﬁable or diagnosable. Many children have mystery maladies, and the solutions to them must be sleuthed out in the same man- ner as for their adult counterparts. Some will require the participation of a pediatric pathologist to help you identify your child’s illness. Others are simply a matter of tracking the origin of symptoms and creating a detailed enough picture of the mys- tery malady that any pediatrician—or even you, the parent—can identify. Here’s how the Eight Steps to Self-Diagnosis helped in four cases: eleven-year-old Jessica, eight-year-old David, four-year-old Lourdes, and nine-year-old Justin, each of whom had a different condition. Because their caring and diligent parents and doctors worked through the Eight Steps, each of these children is now a diagnostic success story. Case Study: Jessica Jessica was a red-haired, freckle-faced sixth grader who loved school and especially loved playing the ﬂute in music class. Around Thanksgiving and quite out of the blue, Jessica began to complain of joint pains and stiffness. Her symptoms were worse in the mornings and on some of those mornings, 187 Copyright © 2005 by Lynn Dannheisser and Jerry Rosenbaum. These days were random, but Jessica’s mom, Marsha, knew just how sick her daughter was when it also happened on music-class mornings. On those days, Jessica would sometimes remain in bed until midday when she ﬁnally felt well enough to get up. There was just one problem: by the time she arrived at the doctor’s ofﬁce, Jessica appeared normal. Jessica must have visited her pediatrician six times over a two-month period, and each time her doctor could ﬁnd no physical evidence of a prob- lem. Finally, he suggested a referral for what he called “attention-seeking behavior. Nevertheless, she followed the doctor’s suggestion and took her daughter to a mental health counselor “just in case.
Prevention and progression of recollapse and progres- sive joint space narrowing were observed on the follow-up radiographs buy generic ginette-35 2 mg line, and the relationship with the extent of viable articular surface of the femoral head was also studied ginette-35 2 mg otc. Of the remodeling after surgery generic 2mg ginette-35 amex, respherical contour on the collapsed area that moved medially and improvement of degenerative joint narrowing were investi- gated. The necrotic focus was moved to the medial portion of the femoral head on postoperative anteroposterior radiographs in all 48 hips. A 30-year-old woman receiving high doses of corticosteroids for treatment of multiple sclerosis. A Preoperative anteroposterior radiograph of her right hip showed extensive col- lapsed lesion without viable area on loaded portion below the acetabular roof. Arrows show anterior and posterior demarcation area between necrotic and noncollapsed viable portion. C A 150° posterior rotational osteotomy with 15° varus position was per- formed. Anteroposterior (AP) radiograph taken 3 months after operation revealed adequate viable joint surface of the femoral head below the acetabular roof. D Viable area was 82% on 45° ﬂexion AP radiograph taken at the same time. E AP radiograph taken 11 years after operation disclosed spherical contour of the medial femoral head (arrow). Flexion was 80°, abduction was 30°, and Japa- nese Orthopaedic Association (JOA) hip score was 96 points. F A 45° ﬂexion AP radiograph taken 11 years after operation showed sphericity of the femoral head 94 T. Respherical contour on the medial collapsed area on ﬁnal anteroposterior radiographs of 35 hips was studied. Of the improvement of degenerative joint on 8 hips with joint space narrowing preoperatively, observation was made for changes of acetabular subchon- dral roof on anteroposterior radiographs at 6 months, 2 years, and ﬁnal follow-up. Results On postoperative anteroposterior radiographs taken in the short period after surgery (less than 1 year), the lateral noncollapsed viable area of joint surface facing the ace- tabular roof was 21% to 100% (mean, 58) in all 48 hips. On postoperative 45° ﬂexion anteroposterior radiographs, the lateral noncollapsed viable area was 11% to 100% (mean, 54); 10 hips showed group A (Fig. Of the extent of viable area on anteroposterior radiographs, 3 hips were in group A, 2 were in group B, and 4 were in group A (Table 3). In 40 hips of stage 3B, recollapse was found in 3 hips and joint narrowing was noted on 7 hips. Recollapse occurred on 1 hip and joint narrowing was seen on 2 of 8 hips with stage 4 (Table 4). Resphericity of the medial collapsed area of the femoral head was observed in 34 of 35 hips (97%) on the ﬁnal anteroposterior radiographs (Fig. Of changes of the acetabular subchondral roof for the 8 hips with joint space narrowing before opera- tion, atrophic changes of the acetabular subchondral roof were noted 6 months after operation in all hips. The shape of the acetabular roof was improved and reformed by 2 years after the procedure. The joint space was increased when comparing it to before the surgery and was maintained at ﬁnal follow-up anteroposterior radiographs. Relationship between extent of viable area of femoral head after operation corre- sponding with acetabular roof, recollapse, and progressive joint space narrowing Conventional AP radiographs (n = 48) Total Group A Group B Group C Recollapse 4 (8%) Progressive joint space narrowing 9 (19%) Table 4. Relationship between stages, recollapse, and progressive joint space narrowing Stage Recollapse Progressive joint space narrowing 3B 3/40 hips (8%) 7/40 hips (18%) 4 /8 hips (12%) 2/8 hips (25%) Posterior Rotational Osteotomy in Femoral Head Osteonecrosis 95 With regard to the range of motion, in hips without recollapse or joint space nar- rowing, the ﬂexion angle was 60° to 130° (mean, 100°), and abduction angle was 15° to 40° (mean, 22°). Hips with either recollapse or joint space narrowing evidenced ﬂexion from 40° to 100° (mean, 96°) and abduction from 5° to 25° (mean, 19°). Clinical evaluation according to the Japanese Orthopaedic Association hip score system was 84 to 100 points (mean, 91) in hips without recollapse or 50 to 83 points (mean, 67) in those without joint space narrowing. Two hips were revised with a total hip arthro- plasty around 15 years after surgery. Causes of the unsuccessful results including early failure were postoperative inadequate viable area under the weight-bearing portion below the acetabular roof in 3 hips, vascular impairment by operation in 2, and living bone that fractured after a high level of activities in 2, degenerative change in 2, and challenging procedure in 1 because of the young age of the patient. Discussion Several kinds of procedures for joint preservation of femoral head osteonecrosis appear to be effective in early-stage and small or mid-sized necrosis [1–3,12]. Joint preservation of femoral head osteonecrosis with extensive and collapsed lesions in young patients may be an important challenge for orthopedic surgeons.
His name is eponymic with applied it to deformities wherever contracted spondylitic syndrome purchase ginette-35 2mg visa. To appreciate the importance of subcutaneous teno- tomy generic 2 mg ginette-35 free shipping, the horrendous proportion and devastating effects of open surgery in pre-Listerian days must be kept in mind generic 2mg ginette-35 with amex. As becomes obvious in this preface, the technic of Stromeyer’s procedure was used as a wedge for the development of muscu- loskeletal surgery vis-a-vis the brace and stretch- ing era of the early days of our specialty. His ﬁrst paper on the subject was published in 1833; however, the classic of Stromeyer was his book on Operative Orthopedics. Even within his lifetime, the Syme amputation was recognized as a major technical advance. Hudson, The Mechanical Surgery, described the Syme amputation as follows: “No amputation of the inferior extremity can ever compare in its value to the subject with that of the ankle joint originated by Mr. That same year he resigned the chair James Syme was born in Edinburgh in November at the University of Edinburgh, to which he had 1799, the son of well-to-do parents. He school days he was fascinated with the subject of was buried in the family vault at St. In the Scotsman Philosophy a new solvent for India rubber derived newspaper of June 20, 1870, there is a resume of from coal tar. Syme’s character and achievements as a Glasgow manufacturer named Macintosh, and surgeon. It is believed to be from the pen of had Syme followed the advice of his friends, our Joseph Lister: “The most prominent feature of rainproof garments today might be referred to as Mr. Syme’s character was uncompromising truth- “Symes” and not “Macintoshes. In 1833 he was appointed to the chair of clinical surgery at the University of Edinburgh and was given an appointment on the staff of the Royal Inﬁrmary. In 1853 Joseph Lister migrated from London to Edinburgh and established a warm relationship with James Syme. By his marriage with Agnus, Syme’s eldest daughter, Lister became the son-in- law of the distinguished professor and acted as his assistant and substitute on many occasions. Syme introduced conservative alternatives to major amputations and is best remembered for his contribution of ankle disarticulation with preser- vation of the heel pad as an alternative to below- knee amputation. Since cartilage is more resistant to infection, the postoperative healing with this new operation, reported by Syme in 1844, was much better than with other traditional types of 329 Who’s Who in Orthopedics he was fully alive to the advantages of medical training, and sent all his ﬁve sons to a medical school—surely a unique occurrence for one family. The eldest and the youngest, Hugh Owen and John Lewis, became widely known, one as a pioneer of orthopedic surgery and the other as a leader in gynecology. Because of indifferent health he was sent to live with his grandparents at Rhos Colyn, where he went to school until the age of 13 years. During this time he sustained an injury, the effects of which were life-long. In later years he always wore a seaman’s cap with the peak Hugh Owen THOMAS tilted down over the injured eye in order to protect it from cold winds and to screen the disﬁgure- 1834–1891 ment. From Rhos Colyn he went on to the college at New Brighton, where he remained until the age Hugh Owen Thomas was born at Bodedern, of 17, when he became apprenticed for 4 years to Anglesey, on August 23, 1834. They derived from Evan Thomas of Maes, the University of Edinburgh at a time when Syme, of Spanish descent, who died in 1814 at the age Simpson, and Goodsir were at the height of their of 79 years. Lister and Turner, newly arrived from in Llanfairynghornwy Church, Anglesey, by Vis- London, were beginning their great careers in count Bulkeley, in which tribute was paid to the Scotland. After two winter sessions he transferred esteem in which he was held as a great boneset- to University College, London, where he spent a ter. In 1857, when 23 years of age, he Thomas, left Wales and settled in Liverpool at 72 qualiﬁed as a member of the Royal College of Great Crosshall Street. He acquired an extensive Surgeons and then went to study the work of practice in the treatment of fractures and bone and French surgeons in the hospitals of Paris. He held conservative views and admired the ingenuity and craftsmanship of the differed from other bonesetters in that he never surgical instrument-makers and brought home attempted to manipulate joints except to reduce ophthalmic knives on which he subsequently dislocations by slow traction.
The advent of molecular sequencing technology and three-dimensional image reconstruction has made the design of antibiotics easier 2 mg ginette-35 amex. Penicillin is one of the antibiotics in a class known as beta-lactam antibiotics discount ginette-35 2mg with amex. This class is named for the ring struc- Antibiotic resistance cheap 2 mg ginette-35 otc, a problem that develops when ture that forms part of the antibiotic molecule. If an antibiotic is used antibiotics include the tetracyclines, aminoglycosides, properly to treat an infection, then all the infectious bacteria rifamycins, quinolones, and sulphonamides. The action of should be killed directly, or weakened such that the host’s these antibiotics is varied. However, the use of too low otics exert their effect by disrupting the manufacture of pepti- a concentration of an antibiotic or stopping antibiotic therapy doglycan, which is main stress-bearing network in the before the prescribed time period can leave surviving bacteria bacterial cell wall. These surviving bacteria have demonstrated the construction of the subunits of the peptidoglycan or by pre- resistance. If the resistance is governed by a genetic alteration, venting their incorporation into the existing network. In the genetic change may be passed on to subsequent genera- another example, amonglycoside antibiotics can bind to a sub- tions of bacterial. For example, many strains of the bacterium unit of the ribosome, which blocks the manufacture of protein, that causes tuberculosis are now also resistant to one or more or can reduce the ability of molecules to move across the cell of the antibiotics routinely used to control the lung infection. As a final example, the As a second example, some strains of Staphylococcus aureus quinolone antibiotics disrupt the function of an enzyme that that can cause boils, pneumonia, or bloodstream infections, uncoils the double helix of deoxyribonucleic acid, which is are resistant to almost all antibiotics, making those conditions vital if the DNA is to be replicated. Ominously, a strain of Staphylococcus Besides being varied in their targets for antibacterial (which so far has been rarely encountered) is resistant to all activity, different antibiotics can also vary in the range of known antibiotics. They are lethal against only a few See also Bacteria and bacterial infection; Bacterial genetics; types (or genera) of bacteria. Other antibiotics are active Escherichia coli; Rare genotype advantage against many bacteria whose construction can be very differ- ent. Such antibiotics are described as having a broad-spec- trum of activity. ANTIBIOTICS, HISTORY OF DEVELOP- In the decades following the discovery of penicillin, a MENT • see HISTORY OF THE DEVELOPMENT OF ANTIBIOTICS myriad of different antibiotics proved to be phenomenally effective in controlling infectious bacteria. Antibiotics quickly became (and to a large extent remain) a vital tool in the physician’s arsenal against many bacterial infections. ANTIBODY-ANTIGEN, BIOCHEMICAL AND Indeed, by the 1970s the success of antibiotics led to the gen- MOLECULAR REACTIONS Antibody-antigen, biochemical, and molecular reactions erally held view that bacterial infectious diseases would soon be eliminated. However, the subsequent acquisition of resist- Antibodies are produced by the immune system in response to ance to many antibiotics by bacteria has proved to be very antigens (material perceived as foreign. This associa- by modifying the antibiotic slightly, via addition of a different tion is governed by biochemical and molecular forces. This acts to alter the tree-dimensional struc- In two dimensions, many antibody molecules present a ture of the antibiotic. At the tips of the arms of the molecules are regions to produce susceptibility to the new antibiotic for a relatively that are variable in their amino acid sequences, depending short time. The 25 Antibody and antigen WORLD OF MICROBIOLOGY AND IMMUNOLOGY arm-tip regions are typically those that bind to the antigen. See also Immune system; Immunoglobulins and immunoglob- These portions of the antibody are also known as the antigenic ulin deficiency syndromes; Laboratory techniques in determinants, or the epitopes. Hydrogen bonds are important in stabilizing the AAntibody and antigenNTIBODY AND ANTIGEN antibody-antigen association. Antigens, which are usually proteins or polysaccha- The hydrogen bonds that are important in antigen-anti- rides, stimulate the immune system to produce antibodies. The body bonding form between amino acids of the antibody and antibodies inactivate the antigen and help to remove it from the antigen. While antigens can be the source of infections from antibody and the antigen create other hydrogen bonds.
10 of 10 - Review by V. Kadok
Votes: 304 votes
Total customer reviews: 304