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1.
BA Siame SF Mpuchane BA Gashe J Allotey G Teffera 《Canadian Metallurgical Quarterly》1998,61(12):1670-1673
Sorghum and maize form the main dietary staple foods in Botswana. Other products such as peanuts, peanut butter, phane (an edible larval stage of an emperor moth Imbrasia belina Westwood), and pulses (cowpeas and beans) are also widely used as food and for the manufacture of feeds. These important food and feed commodities were analyzed for the presence of aflatoxins, fumonisin B1, and zearalenone. Aflatoxins were detected in 40% of the samples analyzed. The concentration of total aflatoxins ranged from 0.1 to 64 microg/kg. The mean concentration ranged from 0.3 microg/kg in sorghum to 23 microg/kg in peanut butter. Peanut butter samples were the most contaminated (71%). No aflatoxins were detected in maize. Fumonisin B1 was detected in 36% of the samples. Maize samples were the most contaminated (85% of the samples) with the concentration ranging from 20 to 1,270 microg/kg. No fumonisin B1 was detected in peanuts, phane, and beans. Zearalenone was only found in 2.6% of the samples analyzed at 40 microg/kg. Aflatoxins were the most common toxins detected in foods and feeds in Botswana. However, fumonisin B1 was more prevalent in maize than aflatoxins or zearalenone. 相似文献
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In memoriam Professor Hugo Adrian, born 1926, deceased 1994, in Santiago, Chile. After completion of his studies in veterinary medicine, he followed a successful career in neurophysiological research. He was Research Associate (1961-1962) and Visiting Professor (1973-1976) at the Neurophysiology Department University of Wisconsin, USA. He was the first Director (1958-1960) of the Institute of Physiology at the Austral University, Valdivia, and was Professor (1963-1973; 1977-1994) and Chairman of the Department of Physiology and Biophysics, University of Chile, Santiago, Chile, where he led a group of researchers in auditory physiology, introduced the use of computer techniques to physiological studies, and developed several projects of applied neurophysiology. 相似文献
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The authors previously reported that male offspring of mothers rats given alkaline ionized water (AKW) showed a significantly higher body weight by day 14 after birth than did offspring of mother rats given tap water (TPW); furthermore, marked myocardial necrosis and fibrosis were observed particularly in the former male offspring at the age of 15 weeks. In the present experiment we looked for differences in bioparameters, namely the milk yield of mothers and suckled milk volume of the offspring, between the AKW- and the TPW-treated groups in order to reveal the factors which cause the unusual body weight gain in the offspring. Even though we were able to repeat our previous observation (the body weight of the male offspring of the AKW group increased significantly more by day 14 and 20 after birth and of the female by day 20 after birth than did that of the TPW group (p < 0.05), no significant difference was noted in any of the bioparameters, including those related to milk production and consumption. It is thus suspected that the water-hydrated cation, which was transferred either to the fetus through the placenta or to the offspring through the milk, might be the cause of the unusual body weight increase. Since calcium plays an important role in skeletal formation, it is tentatively concluded that the higher calcium concentration of AKW enriched the mother, serum calcium which was transferred to the fetus through the placenta and to the offspring through the milk. 相似文献
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IM Rutkow 《Canadian Metallurgical Quarterly》1997,132(9):983-990
OBJECTIVE: To study the hypothesis that numbers of surgical operations in the United States have increased from 1983 and 1994. DESIGN: Analysis of data from the National Center for Health Statics. SETTING: Short-stay general and specialty noninstitutional hospitals, and freestanding ambulatory surgical facilities, exclusive of federal, military, and Veterans Affairs hospitals. PATIENTS: Five-percent national sample. MAIN OUTCOME MEASURE: Ten most frequent surgical operations or classes of surgical procedures within neurosurgery, ophthalmology, otorhinolaryngology, cardiothoracic surgery, general surgery, urology, obstetrics and gynecology, and orthopedics. RESULTS: In 1994, the 10 most frequently performed surgical operations in the United States totaled 7,929,000 cases. This contrasted with 5,731,000 top 10 procedures in 1983, or an increase of 38%. The most common surgical operation in 1994 was cataract extraction, totaling 2,049,000 cases. Groin herniorrhaphy (689,000 procedures) remained the most common operation performed by a general surgeon. Cesarean section was the most frequently completed obstetrical-gynecological operation (858,000 procedures) and the country's second most common surgical procedure in 1994. Arthroscopy of the knee (632,000 procedures) demonstrated enormous growth (153%) and was the country's seventh most frequent operation in 1994. Transurethral prostatectomy (229,000 procedures) underwent the most precipitous decline (29%) of any No. 1-ranked specialty procedure. CONCLUSIONS: Numbers of top 10 surgical operations have increased in every surgical specialty except obstetrics-gynecology. Explanations may be the presence of new technologies, willingness of a preexisting reservoir of patients to undergo now less anxiety-provoking procedures, or less stringent indications. 相似文献
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The researchers surveyed 295 members of the Association for Play Therapy on their attitudes related to working with families when treating children. The results indicated the majority of play therapists held attitudes conducive to involving families in their approaches with children. However, mixed findings were found in specific areas related to the implementation of play therapy with families, suggesting barriers may exist. These mixed findings included a decreased percentage of play therapists that felt like play therapy was effective in family therapy when compared with the high level who felt that play and family therapy approaches could be integrated. Moreover, the respondents were divided on issues such as parents' willingness to be involved in therapy with their children and if parents were actually resistant to being included in sessions with their children. These mixed findings suggest that a wide range of attitudes and experiences about parental involvement exist among play therapists in the field. The authors raise key questions for the play therapy field to consider in more depth and suggest improvements that may be needed in play therapy education to increase the efficacy of play therapists' skills in working with families. (PsycINFO Database Record (c) 2011 APA, all rights reserved) 相似文献
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Results of a 1994-1995 national survey of 9,985 abortion patients reveal that women who live with a partner outside marriage or have no religious identification are 3.5-4.0 times as likely as women in the general population to have an abortion. Nonwhites, women aged 18-24, Hispanics, separated and never-married women, and those who have an annual income of less than +15,000 or who are enrolled in Medicaid are 1.6-2.2 times as likely to do so; residents of metropolitan counties have a slightly elevated likelihood of abortion. When age is controlled, women who have had a live birth are more likely to have an abortion than are those who have never had children. Catholics are as likely as women in the general population to have an abortion, while Protestants are only 69% as likely and Evangelical or born-again Christians are only 39% as likely. Since 1987, the proportion of abortions obtained by Hispanic women and the abortion rate among Hispanics relative to that for other ethnic groups have increased. The proportion of abortion patients who had been using a contraceptive during the month they became pregnant rose from 51% in 1987 to 58%. Nonuse is most common among women with low education and income, blacks, Hispanics, unemployed women and those who want more children. The proportion of abortion patients whose pregnancy is attributable to condom failure has increased from 15% to 32%, while the proportions reporting the failure of other barrier methods and spermicides have decreased. 相似文献
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This study examines long-term health and physical readiness trends in the U.S. Navy. We mailed lifestyle questionnaires to all participants in baseline studies between 1983 and 1989 who were still on active duty in 1994. Commands provided body composition and physical readiness test scores for the participants. Two longitudinal cohorts were created: an 8-year sample (N = 640) with matched data from 1986, 1989, and 1994; and an 11-year sample (N = 1,576), with data from 1983 and 1994. Analyses of both cohorts revealed significant improvements in cardiovascular fitness, muscle strength, exercise, lean body mass, dietary habits, and sleep, as well as significant decreases in tobacco and alcohol use and job stress. However, hypertension rates, percentage of body fat, and body mass index increased over time. Women's scores were significantly better than men's on a number of factors. Overall, these findings suggest that the Navy's health promotion efforts have had a significant positive effect on the fitness and health behaviors of career Navy men and women. 相似文献
10.
HT Band 《Canadian Metallurgical Quarterly》1975,80(4):761-771
A survey of biochemical polymorphism among glucose- and non-glucose-metabolizing enzymes was carried out on the June 1973 collection from the South Amherst, Mass. Drosophila melanogaster natural population. Polymorphic levels are among the highest recorded for this species; polymorphism among glucose-metabolizing enzymes did not differ significantly from that among non-glucose-metabolizing enzymes. Two loci, G6Pd on the X and Est-6 on the 3rd chromosome, displayed significant excesses of heterozygotes. Adh on the 2nd and Idh, Odh and Ao on the 3rd chromosome showed significant heterozygote deficiencies. Idh is ten map units to the left of Est-6, Odh twelve map units to the right and Ao is seven units beyond Odh. Temperatures in the two-week June period prior to collection were exceedingly variable. Daily high/low ranged between 76 degrees/40 degrees and 97 degrees/65 degrees F. These results support the findings of Frydenberg and Simonsen (1973) that in some populations glucose-metabolizing enzymes tend to be as polymorphic as non-glucose-metabolizing ones. They also add to the evidence obtained from other plant and animal populations that increased biochemical polymorphism is associated with more variable and/or colder climates. The increase may in part be due to increased polymorphism among glucose-metabolizing enzymes. Comparisons utilizing published data on other D. melanogaster populations and on D. robusta indicate a clinal increase in heterozygosity among glucose-metabolizing enzymes as one moves northward. 相似文献
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BACKGROUND: Sarcoidosis is a multisystemic granulomatous disease of unknown etiology, while Lyme borreliosis is a multisystemic disorder caused by Borrelia burgdorferi. The purpose of this study is to evaluate the relationship between sarcoidosis and Lyme borreliosis in a region of Japan where Lyme borreliosis is endemic. METHODS: We determined the seroprevalence of anti-Borrelia burgdorferi antibodies as well as antibodies three Japanese Borrelia strains by enzyme-linked immunosorbent assay and dotblot assay using purified Borrelia-specific proteins in 46 patients with confirmed sarcoidosis and 150 controls (50 disease controls and 100 healthy controls) in Hokkaido, the affected region. RESULTS: Fifteen patients with sarcoidosis (32.6%) tested positive for Borrelia spirochete in both assays, compared with two disease controls (4.0%) and two healthy controls (2.0%). The seroprevalence of anti-Borrelia antibodies in patients with sarcoidosis was much higher in the affected region than in the region in our previous study were Lyme borreliosis is non-endemic. CONCLUSION: In a region where Lyme borreliosis is endemic, Borrelia infection may be partially associated with sarcoidosis. 相似文献
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WA Leigh 《Canadian Metallurgical Quarterly》1995,1(2):177-196
Provides a review of the major issues raised during the 1993-1994 national health reform debate, with emphasis on the implications of these issues for women's health. I begin with an overview of the current health care system and the access to care by women in it, based in part on their health characteristics. The need to reform the current system is noted, along with a discussion of the major issues and proposals debated during 1993-1994, the years of the 103d US Congress. Questions are raised that could enable women's health advocates and activist women health care consumers to assess the implications for women of various future health reform proposals. 相似文献
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All mammary lesions diagnosed at the Institute of Pathological Anatomy of the University of Modena have been systematically filed since 1990 and reported in a bulletin, which is issued twice a year and delivered to health operators. So far, 5.188 cases of breast lesions, comprising 1.999 non-neoplastic pathologies, 1.040 benign tumors, 1.943 primary malignant neoplasms and 206 recurrences, have been filed. During the quinquennium 1990-1994, a progressive numerical reduction in diagnoses of non-neoplastic lesions coupled to an increase of benign tumors has been observed, whereas the number of primary malignant tumors has not changed. In particular, a statistically significant increase in diagnoses of carcinoma-in-situ and of fibrocystic disease associated with moderate-risk lesions (atypical hyperplasias) has been detected, whereas the number of cases of single fibrocystic disease has decreased. This reduction, however, is not significant. A slight increase of breast carcinomas smaller than 1 cm and 2 cm, coupled to a decrease of those exhibiting dimensions between 2 and 5 cm, has been found. The collection and systematic analysis of cases of mammary lesions appears to represent a useful tool to study the incidence of different breast pathologies in the general populations. It can also be viewed as a simple way to test the reliability of diagnostic methods used for selection of surgical cases. 相似文献
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This study examines trends in induced abortion rates in England and Wales, from 1969 to 1994. A comparison of the trends between the different age groups shows contrasting changes and interesting features. The only age group to show a continuous increase since 1969 has been females aged 11 to 14 years. This may be due to birth cohort effect, as younger women begin sexual activity in a social environment of higher risk than previous cohorts. These considerations have important implications for the organisation of preventive services particularly health education. In spite of the availability of improved and better contraceptive services and sex education, the cohort analysis suggests that induced abortion rates in each successive cohort was higher than the preceding cohort. 相似文献
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Of 208 school psychology programs in the US, 193 responded to an initial letter requesting program directors to return a postcard questionnaire indicating if the program used a university-based clinic as a field placement for school psychology students. Of the 92 programs reporting use of such a clinic, 71 completed a lengthy follow-up questionnaire. 60 of these questionnaires were completed in a telephone interview, and 11 were completed by mail. The questionnaire addressed administrative/organizational (e.g., administration) and training (e.g., supervisory practices) issues. Results are reported in terms of the percentage of programs reporting different practices. Specific clinic-based field experiences and common issues in this model of field experience are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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Presents the official Treasurer's Report for the American Psychological Association (APA) operations for 1994. The report addresses substantial revenue growth from the communications program, meetings, real estate investments, and membership. Additional sources of income, in the form of programs and services added or expanded over the past 5 yrs, are highlighted. Revenues and expenses are discussed in terms of a comparison between 1992 and 1993 by directorates (Science, Practice, Public Interest, and Education), Central Programs, Grants and Contracts, and Communications. Information on changes in APA's fund balance, or net worth, is presented. A positive financial future is predicted for the APA. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
18.
M Michael 《Canadian Metallurgical Quarterly》1996,276(5):364-368
OBJECTIVE: To evaluate access to and distribution and quality of medical supplies donated by humanitarian aid organizations to hospitals and health services during the war in Bosnia and Croatia. DESIGN: Retrospective survey of 68 representatives of hospitals and field hospitals regularly caring for inpatients between May 1994 and April 1995. SETTING: Three study areas: the Republic and Federation of Bosnia-Herzegovina, Republika Srpska (part of Bosnia-Herzegovina controlled by Bosnian Serbs), and Republika Srpska Krajina (part of Croatia controlled by Croatian Serbs during the study period). PARTICIPANTS: Of 68 hospital representatives, 44 completed the survey (65% response rate). Respondents did not include representatives from 11 hospitals and field hospitals that could not be contacted because of operational obstacles resulting from the ongoing war. RESULTS: Lack of supplies was reported as an important limitation by 62% (26/42) of respondents, followed by lack of staff and security, physical isolation, and lack of infrastructure. Antibiotics were mentioned by 76% (32/42) of respondents as the unavailable drug or item most urgently needed. The majority of drug and medical supplies used to treat patients had been supplied by 5 humanitarian aid organizations. The frequency with which respondents mentioned their ?own means? (eg, from the ministry of health or respective municipalities) was relatively low (9%), reflecting the high degree of dependency on humanitarian aid. All respondents rated the quality of donated supplies and the working relationship with the donating organization as ?very good? or ?satisfactory?; 93% 41/44) of respondents indicated that the donated supplies were appropriate. Six of 44 respondents preferred to receive supplies as part of assembled kits; 70% (31/44) preferred to receive such assistance as loose supplies according to demand. CONCLUSION: During war, access and security are beyond the control of humanitarian agencies. Assistance coordination, however, must be provided. Although a consensus on policies and objectives between different humanitarian organizations is difficult to reach, satisfactory complementarity can be achieved. The systematic and continuous gathering of information at the recipient and user level, beginning at the early phase of the conflict, is recommended to maintain appropriate assistance. 相似文献
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The authors analysed all cases of occupational diseases diagnosed in Poland over the last three years. The following variables were considered: age, gender of patients, duration of exposure to factors inducing occupational disease, nosologic units, and the types of work places by the European Activity Classification and their localization by voivodships. The obtained results helped to formulate the following conclusions: 1. The number of occupational diseases in the period under study ranged annually between 11,156 and 11,320 cases. The incidence rates (number of cases/100,000 employed) fell within 116-131. 2. The general incidence of occupational diseases was shaped by: hearing impairment, chronic diseases of voice organs, communicable and invasive diseases, pneumoconioses, skin diseases, vibratory syndrome and poisoning. 3. The majority of diagnosed diseases occurred at least after 10 years of occupational exposure to causal factor. 4. The highest incidence of occupational diseases by the European Activity Classification was observed in mining and quarrying, manufacture, education and health services. 5. The analysis of the occupational disease incidence in individual work places indicated a number, however small, of enterprises which are a major source of these diseases. 相似文献
20.
D Alexander 《Canadian Metallurgical Quarterly》1997,21(4):284-304
As part of a series of papers to mark the 21st year of publication of Disasters, it is opportune to consider some of the changes that have occurred in the field it has covered so diligently for the last two decades. The paper begins with a brief review of the major natural disasters during this period and assesses their impact. It then considers the problem of how to define two key concepts: natural disaster and vulnerability, which remains an open question. The latter is one of the key determinants of the former. Next comes a review of what has occurred in the disasters field since the journal began publication, including some notes on the rise in vulnerability, the information technology revolution and the dilemmas of hazard mitigation. The following two sections assess, respectively, what hoped-for developments did not occur during the period studied and what assets were lost in the name of progress. For example, on the theoretical front, academic over-specialisation has predominated, while on the practical side there has been insufficient transfer of technology to where it is needed. The paper concludes that analyses of disaster need to become more sophisticated and multi-disciplinary and must take account of several forms of context within which developments take place. 相似文献