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1.
The needs of people with serious mental illnesses have dominated much of the debate on reforming community care. In this article Peter Campbell, who has used mental health services many times in the past, explains how the reforms could affect people like him. He welcomes the thinking behind the changes, particularly the idea that people who use community care should take part in planning services, but he warns that implementing the new philosophy might prove very difficult. Mr Campbell is secretary of a voluntary organisation for users of mental health services called Survivors Speak Out. The views he expresses here are his own, and do not necessarily reflect those of Survivors Speak Out.  相似文献   

2.
Rudolf Jaenisch explains how the quest for an answer to the simple question of viral tropism in the mouse lead him to a life-long career in regulation of gene expression in the early embryo and pluripotent stem cells. He shares his experience about what it takes to develop into a successful scientist; expresses his concern about the challenges facing young scientists entering the field - not all of them funding related - and candidly offers some solid tips on opportunities to take advantage of and mistakes to avoid. Being mindful of when to let go of a project, and staying focused on what is important, are probably obvious tips, but they need to be re-stated, since they also appear to be the most difficult to accomplish. Dr. Jaenisch continues to work tirelessly on the problem of epigenetic control in the early embryo and its connection with stem cells.  相似文献   

3.
4.
Johann, Heinrich, Ferdinand von Autenrieth [1772–1835], was a teacher of anatomy, physiology and pharmacology at the University of Tübingen, Germany. He was the author of a famous textbook on Physiology and one of the earliest pharmacologists [Öffentlicher Lehrer der Arzneykunst]. In his textbooks, he presented a lot of information that and how biological rhythms influenced physiological functions in the human body, the book was used for his medical lectures for students. He can be regarded as on of the earliest chronophysiologists. Most important, he assumed a chemical stimulation responsible for generating the periodicities in the human body.  相似文献   

5.
During his long career as a principal investigator and educator, Eli Sercarz trained over 100 scientists. He is best known for developing hen egg white lysozyme (HEL) as a model antigen for immunologic studies. Working in his model system Eli furthered our understanding of antigen processing and immunologic tolerance. His work established important concepts of how the immune system recognizes antigenic determinants processed from whole protein antigens; specifically he developed the concepts of immunodominance and crypticity. Later in his career he focused more on autoimmunity using a variety of established animal models to develop theories on how T cells can circumvent tolerance induction and how an autoreactive immune response can evolve over time. His theory of "determinant spreading" is one of the cornerstones of our modern understanding of autoimmunity. This review covers Eli's entire scientific career outlining his many seminal discoveries.  相似文献   

6.
Thomas Hunt Morgan taught at Bryn Mawr College from 1891 until1904. During his years there he concentrated his research interestson embryology; he included regeneration as an integral partof development. This article maintains that Morgan did not abandonhis interest in embryology when he became a geneticist at Columbia,but it deals mainly with his teaching and research while atBryn Mawr. He worked on the development of a great diversityof organisms, plant and animal, he used widely differing experimentalmethods to investigate them, and he concerned himself with manydifferent general and special problems. He strove to investigateproblems that were directly soluble by experimental intervention,and was highly critical, in the best possible way, of the experimentsand interpretations made by his contemporaries, who regardedhim as a leader. He exerted his influence on developmental biologynot only through his research, but also through a number offine textbooks, and by his teaching. During his Bryn Mawr yearshe encouraged his students, undergraduate and graduate, to carryout independent research. He sometimes published with them asco-author, but dozens of articles by his students were publishedwithout carrying Morgan's name as co-author.  相似文献   

7.
Sergei Winogradsky, was born in Russia in 1856 and was to become a founder of modern microbiology. After his Master's degree work on the nutrition and growth physiology of the yeast Mycoderma vini at the University of St. Petersburg, he joined the laboratory of Anton DeBary in Strassburg. There he carried out his studies on the sulfur-oxidizing bacterium Beggiatoa which resulted in his formulation of the theory of chemolithotrophy. He then joined the Swiss Polytechnic Institute in Zurich where he did his monumental work on bacterial nitrification. He isolated the first pure cultures of the nitrifying bacteria and confirmed that they carried out the separate steps of the conversion of ammonia to nitrite and of nitrite to nitrate. This led directly to the concept of the cycles of sulfur and nitrogen in Nature. He returned to Russia and there was the first to isolate a free-living dinitrogen-fixing bacterium. In the flush of success, he retired from science and spent 15?years on his familial estate in the Ukraine. The Russian revolution forced him to flee Russia. He joined the Pasteur Institute in Paris where he spent his remaining 24?years initiating and developing the field of microbial ecology. He died in 1953.  相似文献   

8.
Portuguese businessman António Champalimaud surprised his family when his will, opened after his 2004 death, revealed that he was bequeathing €500 million ($690 million), about a quarter of his estate, to establish a foundation for applied biomedical research. He also surprised law professor and one-time Portuguese Health Minister Leonor Beleza, whom he named to lead the foundation. Beleza, who met Champalimaud just once, agreed in principle to run his proposed foundation during a phone call in 2000 but did not hear any further until his death. She has now returned from a global tour of medical research institutions and foundations lasting over a year to determine how best to spend Champalimaud's millions.On 5 October, the Champalimaud Foundation opened its seaside Center for the Unknown in Lisbon, Portugal. The center will host about 600 researchers and physicians and 300 patients when it reaches full staffing levels. Lucas Laursen recently called Beleza to ask how she laid the groundwork and what lies ahead.  相似文献   

9.
R Patterson 《CMAJ》1996,154(11):1725-1727
After spending 15 years in university, Dr. Robert Patterson recently received the right to write FRCSC after his name, and then began to look for gainful employment as a general surgeon. It was a long and frustrating search. He recounts how he finally found work in northern Alberta, and wonders if next year''s residents will encounter the same shortage of opportunities that he discovered.  相似文献   

10.
Till Roenneberg is Professor of Chronobiology at the University of Munich. He studies the circadian clock from its cellular/molecular mechanisms up to the consequences of shift work. He received his education in Munich and London, and worked in the 1980s with Woody Hastings at Harvard. Since then, he has built up the Centre for Chronobiology at the Munich Medical School. For many years, he has coordinated circadian research and education in Germany and in Europe. He is also involved in reforming the University curriculum, incorporating problem-based approaches. He has received international prizes for both his research and his teaching.  相似文献   

11.
1. Rehfisch (1994) made various recommendations for how to increase chironomid biomass and its availability to waders in artificial lagoons. We argue that his studies form an insufficient basis for some of these recommendations.
2. He suggested protocols for depth manipulation based on a model predicting biomass in terms of depth and depth squared which was not a meaningful representation of his data. This model should therefore not be used as a guide for managing water levels.
3. He predicted that biomass would peak at a depth of about 117 cm, yet he only studied depths of up to 54 cm. We used data from a large, permanent, brackish lake to illustrate how biomass at shallow depths cannot be used to predict that found at greater depths.
4. His aim of a simple model allowing managers to predict chironomid biomass on the basis of depth in artificial lagoons was unrealistic, owing to wide variation in the biomass–depth relationship within and between sites.
5. The value of his 'inverted sombrero' design for a wader lagoon needs to be demon strated empirically. He advocated regular drying-out of lagoons followed by immediate refilling, a flooding cycle that may not maximize chironomid biomass.  相似文献   

12.
A 60-year-old male physician is self-referred to your office for evaluation of his erectile dysfunction, which has been worsening for 5 years. He reports his erections rarely achieve fullness for penetration, and he is unable to ejaculate. He has tried sildenafil citrate (Viagra(R); Pfizer Inc, New York, NY) with mild success in the past. He has a strong libido and feels healthy. He rarely exercises, but is on his feet most of the day at work. He has been healthy his whole life and never seeks a doctor's attention. He has no other medical problems. His only medication is a baby aspirin once a day. His physical examination, including genitalia, is normal. As part of his initial visit, should his serum testosterone level be checked by his urologist?  相似文献   

13.
A number of personality and style-of-life variables were found to be significantly related to frequency of marijuana use, in a study of 1215 students on the University of California, Los Angeles, campus. Compared with the non-user, in composite the typical marijuana-user is somewhat depressed, more inclined to doubt his emotional adjustment. He likes to take risks and seeks stimulation; he has strong political opinions; he believes in punishment for law-breakers, but he is more likely to question it. He is not religious; he is less well identified with parents, and he has a lower opinion of their marital adjustment. He is not decisive about career goals; he is a fine arts or liberal arts major. He uses alcohol, sometimes in combination with marijuana; he first tried marijuana after entering college and is not increasing his use. The typical marijuana-user in the sample uses it infrequently, twice a month or less often, and is not likely to be using other drugs. The frequent user probably uses other drugs.  相似文献   

14.
Dr Shigeo Yamanouchi was born in Yamagata Prefecture and completed his secondary education at Tokyo Higher Normal School (THNS) where he was also a professor until 1904. In 1905, he went to the University of Chicago in the USA and earned a PhD in Botany in 1907. He is best noted for his excellent research on the cytology and life histories of the marine algae Polysiphonia, Fucus, Cutleria, Aglaozonia and Zanardinia, published between 1906 and 1921 while he was associated with the University of Chicago. He also described the freshwater green alga Hydrodictyon africanum. In 1910, he returned to THNS as a Professor and wrote several botanical textbooks, receiving his DSc degree in 1911 and traveling in England and the USA as an advisor for the Japanese Ministry of Education during 1911–1913. For much of the time between 1920 and 1942 he remained in the USA, returning to Japan following the advent of World War II, During his later life, he was in obscurity, and sadly there is very little recorded of his activities in the post-war years. He died in Tokyo on 2 February 1973 at the age of 96.  相似文献   

15.
ABSTRACT

Chronobiology lost a great and distinguished physician-scientist, Pietro Cugini (Figure 1). He will be dearly missed by his family, his friends, and the field he helped shape and guide as he remained active until the end of his life at 83 years of age. In the middle of the worst pandemic the world has known in recent times, but not from COVID-19, Pietro passed away unexpectedly in front of his Rome apartment, on Via Latina, the same street where he was born and where he spent most of his life. He was buried shortly afterward in the Monumental cemetery of Marino. There was no formal ceremony as funerals were suspended because of the coronavirus. A proper ceremony will take place as soon as travel and congregation are possible. Pietro is survived by his three children, Silvia, Raffaella and Riccardo Cugini.  相似文献   

16.
Atsushi Komamine was one of the pioneers of plant tissue culture in Japan and a researcher with many friends throughout the world. His objective was to determine the potential capacities of plant cells, and he contributed considerably to plant tissue cultivation research by establishing several unique culture systems that controlled cell division and differentiation. He emphasized that the uniformity of cultured cells and the synchrony of the plant cell response at a high frequency were necessary to study the functions of plant cells using biochemical and molecular biological methods. He trained over 300 people, and many outstanding individuals in academia and industry emerged under his tutelage. He was an outstanding mentor: with his accommodating attitude, he was loved dearly by students and foreign researchers alike. He set up the Asia Pacific Association of Plant Tissue Culture and Agribiotechnology in 2000, and he established the international journal Plant Biotechnology Reports with Jang R. Liu in 2006, thereby contributing to Asian plant sciences. In addition to describing his achievements and activities, this article aims to paint a portrait of the man himself.  相似文献   

17.
Edouard Chatton (1883–1947) began his scientific career in the Pasteur Institute, where he made several important discoveries regarding pathogenic protists (trypanosomids, Plasmodium, toxoplasms, Leishmania). In 1908 he married a "Banyulencque", Marie Herre; from 1920, he focused his research on marine protists. He finished his career as Professor at the Sorbonne (Paris) and director of the Laboratoire Arago in Banyuls-sur-mer, where he died in 1947. André Lwoff (1902–1994) lived several scientific lives in addition to his artistic and family life. But it is the study of protists that filled his first life after he encountered the exceptional Master who was Chatton. Lwoff's father was a psychiatrist and his mother an artist sculptor. He became a Doctor of Medicine in 1927 and then a Doctor of Sciences in 1932, his thesis dealing with biochemical aspects of protozoa nutrition. He met Chatton in 1921 and – until Chatton's death – their meetings, first in Roscoff and then in Banyuls-sur-mer, were numerous and their collaboration very close. Their monograph on apostome ciliates was one of the peaks of this collaboration. In 1938, Lwoff was made director of the Microbial Physiology Department at the Pasteur Institute in Paris, where he began a new life devoted to bacteria, and then to viruses, before pursuing his career as director of the Cancer Research Institute in Villejuif (France). Lwoff was awarded the Nobel Prize in Physiology or Medicine in 1965. He died in Banyuls in 1994. "Master" and "pupil" had in common perseverance in their scientific work, conception and observation, a critical sense and rigor but also a great artistic sensibility that painting and drawing in the exceptional surroundings of Banyuls-sur-mer had fulfilled. Electronic Publication  相似文献   

18.
The German-born American scientist Jacques Loeb (1859-1924) was one of the most important promoters of experimental biology around 1900. He was best known for his physico-chemical explanations of psychological processes and his biotechnological approach to artificial parthenogenesis. At the start of the First World War, Loeb was deeply troubled by the deterioration of the international scientific community and the growing alienation of his German and American colleagues. The aim of this paper is to examine Jacques Loeb's activities aimed at advancing scientific internationalism before, during, and after the war. Loeb, for example, tried to negotiate the publication of German authors in American journals during the war, at a time when this was categorically rejected by publishers. Immediately after the war, he tried to create a specific system aimed at disseminating scientific literature and funding selected European colleagues, in order to overcome what he considered reactionary and hegemonic forces within German scientific institutions. His correspondence with eminent scientists from all over the world (amongst them Albert Einstein, Richard Goldschmidt, Otto Meyerhof, Otto Warburg, Paul Ehrlich, Wolfgang Ostwald, Wilhelm Roux, and Ross Harrison) will serve as a source for the analysis. Special emphasis will be placed on the question how Jacques Loeb integrated epistemology, his particular world view, and his social commitment into the workings of his own life and how he tried to extend his scientific goal of controlling biological systems to the sphere of international science.  相似文献   

19.
About two years ago, on a cool Southern California day, Vasili Davydov addressed a group of social scientists at the University of California, San Diego. He began his talk with a paradox. He had come, he said, to tell us about educational activity. He promised to exhibit principles that promote educational activity, and applied programs deriving from those principles. Then he laughed. "But you'll never see educational activity in the school," he said, and laughed again.  相似文献   

20.
Robert Chambers and Thomas Henry Huxley helped popularize science by writing for general interest publications when science was becoming increasingly professionalized. A non-professional, Chambers used his family-owned Chambers' Edinburgh Journal to report on scientific discoveries, giving his audience access to ideas that were only available to scientists who regularly attended professional meetings or read published transactions of such forums. He had no formal training in the sciences and little interest in advancing the professional status of scientists; his course of action was determined by his disability and interest in scientific phenomena. His skillful reporting enabled readers to learn how the ideas that flowed from scientific innovation affected their lives, and his series of article in the Journal presenting his rudimentary ideas on evolution, served as a prelude to his important popular work, Vestiges of the Natural History of Creation. Huxley, an example of the new professional class of scientists, defended science and evolution from attacks by religious spokesmen and other opponents of evolution, informing the British public about science through his lectures and articles in such publications as Nineteenth Century. He understood that by popularizing scientific information, he could effectively challenge the old Tory establishment -- with its orthodox religious and political views -- and promote the ideas of the new class of professional scientists. In attempting to transform British society, he frequently came in conflict with theologians and others on issues in which science and religion seemed to contradict each other but refused to discuss matters of science with non-professionals like Chambers, whose popular writing struck a more resonant chord with working class readers. This revised version was published online in July 2006 with corrections to the Cover Date.  相似文献   

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