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  • Articles  (18)
  • Environment  (18)
  • American Association for the Advancement of Science (AAAS)  (18)
  • Blackwell Publishing Ltd
  • Cell Press
  • 1995-1999
  • 1985-1989
  • 1980-1984
  • 1975-1979  (18)
  • 1940-1944
  • 1978  (18)
Collection
  • Articles  (18)
Publisher
  • American Association for the Advancement of Science (AAAS)  (18)
  • Blackwell Publishing Ltd
  • Cell Press
  • Springer  (1)
Years
  • 1995-1999
  • 1985-1989
  • 1980-1984
  • 1975-1979  (18)
  • 1940-1944
Year
  • 1
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1978-12-08
    Description: The relative frequency of appearance of discontinuities in the postsynaptic thickening, or perforations in the subsynaptic plate, increased with age and experience. Rats reared from weaning in complex or social environments had a significantly higher proportion of occipital cortical synapses with perforations than did rats reared in isolation. In addition, the relative frequency of these perforations more than tripled between 10 and 60 days of age. Shifts in the frequency of perforations can occur independently of changes in the size of synpases. This result suggests a new potential mechanism of synaptic plasticity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Greenough, W T -- West, R W -- DeVoogd, T J -- New York, N.Y. -- Science. 1978 Dec 8;202(4372):1096-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/715459" target="_blank"〉PubMed〈/a〉
    Keywords: *Aging ; Animals ; Cerebral Cortex/ultrastructure ; Environment ; Male ; Occipital Lobe/*ultrastructure ; Rats ; Synapses/ultrastructure ; Synaptic Membranes/*ultrastructure
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1978-10-20
    Description: Retinal growth in young Sebastes diploproa involves the succession of three distinct cone patterns. Development of the final pattern with the loss of single cones occurs in close temporal association with a permanent migration from the surface to deep water. The results suggest that loss of single cones depends upon the change in environment and that the loss occurs through fusion to double elements.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boehlert, G W -- New York, N.Y. -- Science. 1978 Oct 20;202(4365):309-11.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/694534" target="_blank"〉PubMed〈/a〉
    Keywords: Age Factors ; Animals ; Environment ; Fishes/*physiology ; Light ; Photoreceptor Cells/*physiology ; Retina/ultrastructure ; Species Specificity ; Trout/physiology
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  • 3
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1978-12-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1978 Dec 22;202(4374):1265-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/725600" target="_blank"〉PubMed〈/a〉
    Keywords: DNA, Recombinant/*standards ; Environment ; Environmental Pollution/prevention & control ; Government Regulation ; Legislation as Topic ; Research Design/*standards ; Risk Assessment ; United States
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  • 4
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1978-03-10
    Description: Despite asynchrony, saccades of left and right eyes of African chameleons had similar timing statistics. Prominent qualitative aspects of these statistics did not change if one or both eyes were masked. Evidently, an internal stochastic process regulated chameleon saccade generation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mates, J W -- New York, N.Y. -- Science. 1978 Mar 10;199(4333):1087-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/628832" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Environment ; *Eye Movements ; Functional Laterality ; Lizards/*physiology ; *Saccades ; Stochastic Processes ; Vision, Ocular
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1978-04-21
    Description: Beginning at different ages in their preschool years, groups of chronically undernourished children from Colombian families of low socioeconomic status participated in a program of treatment combining nutritional, health care, and educational features. By school age the gap in cognitive ability between the treated children and a group of privileged children in the same city had narrowed, the effect being greater the younger the children were when they entered the treatment program. The gains were still evident at the end of the first grade in primary school, a year after the experiment had ended.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McKay, H -- Sinisterra, L -- McKay, A -- Gomez, H -- Lloreda, P -- New York, N.Y. -- Science. 1978 Apr 21;200(4339):270-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/635585" target="_blank"〉PubMed〈/a〉
    Keywords: Age Factors ; Child ; Child, Preschool ; Cognition/*physiology ; Education ; Environment ; Humans ; Learning Disorders/*prevention & control ; Nutrition Disorders/diet therapy/*physiopathology ; Nutritional Physiological Phenomena ; Socioeconomic Factors ; Time Factors
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  • 6
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1978-05-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ryan, A J -- New York, N.Y. -- Science. 1978 May 26;200(4344):919-24.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/644334" target="_blank"〉PubMed〈/a〉
    Keywords: Athletic Injuries/prevention & control/rehabilitation/therapy ; Environment ; Forecasting ; Hemodynamics ; Humans ; Muscles/physiology ; Nutritional Physiological Phenomena ; Physical Education and Training ; Physical Endurance/drug effects ; Physical Fitness ; Recreation ; Respiration ; *Sports Medicine/trends ; Superstitions
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  • 7
    Publication Date: 1978-06-23
    Description: In all species studied, the medial preoptic area has been found to be necessary for male copulatory behavior. No recovery of sexual function from the medial preoptic area lesions appears to have been reported. This study demonstrates that rats with large lesions of the medial preoptic area exhibit adult male sexual behavior when the surgery is performed prepuberally and the rats have interacted socially with peers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Twiggs, D G -- Popolow, H B -- Gerall, A A -- New York, N.Y. -- Science. 1978 Jun 23;200(4348):1414-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/663624" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Copulation/*physiology ; Environment ; Hypothalamus/*physiology ; Male ; Preoptic Area/*physiology ; Rats ; *Sexual Maturation
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  • 8
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1978-03-17
    Description: During a procedure to monitor carbon monoxide (CO) concentrations inside a traveling car, it was discovered that CO emissions from individual passing vehicles produced accurately measurable increases in the CO concentration. The CO produced by individual vehicles varied by three orders of magnitude; this finding demonstrates that a relatively small number of cars can be responsible for a high percentage of total vehicle CO Emissions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chaney, L W -- New York, N.Y. -- Science. 1978 Mar 17;199(4334):1203-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/75569" target="_blank"〉PubMed〈/a〉
    Keywords: Automobile Driving ; Automobiles/standards ; Carbon Monoxide/*analysis ; Environment ; Rural Population ; United States ; Urban Population ; Vehicle Emissions/*analysis
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  • 9
    Publication Date: 1978-06-30
    Description: Mercury concentrations in Pacific hake increase with fish size and with the latitude of collection. While the mercury-size trend is consistent with data for other species, the latitudinal trend is opposite to that reported for other fishes over the same geographical area. Consequently, latitudinal trends of mercury concentrations in fishes do not necessarily indicate trends of mercury concentrations in water. Food habits and metabolism may cause the observed variations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cutshall, N H -- Naidu, J R -- Pearcy, W G -- New York, N.Y. -- Science. 1978 Jun 30;200(4349):1489-91.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/663631" target="_blank"〉PubMed〈/a〉
    Keywords: Age Factors ; Animals ; Environment ; Fishes/*metabolism ; Mercury/*metabolism ; Water Pollutants/*metabolism ; Water Pollutants, Chemical/*metabolism
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  • 10
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1978-06-23
    Description: The city of Warsaw was razed at the end of World War II and rebuilt under a socialist government whose policy was to allocate dwellings, schools, and health facilities without regard to social class. Of the 14,238 children born in 1963 and living in Warsaw, 96 percent were given the Raven's Progressive Matrices Test and an arithmetic and a vocabulary test in March to June of 1974. Information was collected on the families of the children, and on characteristics of schools and city districts. Parental occupation and education were used to form a family factor, and the district data were collapsed into two factors, one relating to social marginality, and the other to distance from city center. Analysis showed that the initial assumption of even distribution of family, school, and district attributes was reasonable. Mental performance was unrelated either to school or district factors; it was related to parental occupation and education in a strong and regular gradient. It is concluded that an egalitarian social policy executed over a generation failed to override the association of social and family factors with cognitive development that is characteristic of more traditional industrial societies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Firkowska, A N -- Ostrowska, A -- Sokolowska, M -- Stein, Z -- Susser, M -- Wald, I -- New York, N.Y. -- Science. 1978 Jun 23;200(4348):1357-62.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/663616" target="_blank"〉PubMed〈/a〉
    Keywords: Child ; *Cognition ; Educational Status ; Environment ; Humans ; Occupations ; Poland ; Socioeconomic Factors
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  • 11
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1978-06-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gori, G B -- Richter, B J -- New York, N.Y. -- Science. 1978 Jun 9;200(4346):1124-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/653358" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Age Factors ; Aged ; Child ; Child, Preschool ; Costs and Cost Analysis ; Environment ; Female ; Government ; Humans ; Infant ; Life Expectancy ; Male ; Middle Aged ; Population Dynamics ; *Preventive Medicine ; Social Security ; Socioeconomic Factors ; United States
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  • 12
    Publication Date: 1978-09-29
    Description: Human sleep is characterized by episodes of immobility punctuated by major postural shifts. The organization of this motor activity was shown with a combination of photographic and electroencephalographic recording to be periodic and related to the electroencephalographic sleep cycle. The amount of immobility as measured photographically was positively related to subjective estimates of the goodness of sleep.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hobson, J A -- Spagna, T -- Malenka, R -- New York, N.Y. -- Science. 1978 Sep 29;201(4362):1251-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/694515" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Electroencephalography ; Environment ; Female ; Humans ; Male ; *Movement ; Photography ; Sleep Stages/*physiology
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  • 13
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1978-05-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Press, F -- New York, N.Y. -- Science. 1978 May 19;200(4343):737-41.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/644319" target="_blank"〉PubMed〈/a〉
    Keywords: Agriculture ; Climate ; Economics ; Environment ; Forecasting ; Government ; Research ; *Science ; United States
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  • 14
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1978-05-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Saward, E -- Sorensen, A -- New York, N.Y. -- Science. 1978 May 26;200(4344):889-94.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/644331" target="_blank"〉PubMed〈/a〉
    Keywords: Attitude to Health ; Education, Medical ; Environment ; Environmental Exposure ; Environmental Health ; Government ; Humans ; Insurance, Health ; Nutritional Physiological Phenomena ; *Preventive Medicine ; Public Health ; Risk ; United States
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  • 15
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1978-07-14
    Description: As the pluripotent cells of early embryos differentiate, each progressively loses the potency to develop into several phenotypes. Ultimately, each cell becomes irreversibly restricted to the expression of a single phenotype. Although in many instances details regarding those restriction events are well known, there is little information concerning the nature of the gene transcription changes involved. A model that accounts for the diminution of developmental potential as resulting from progressive, irreversible repression of previously active genes is presented. A scheme of progressive gene repression, rather than selective gene activation, is most consistent with observations from experimental embryology as well as from more recent biochemical experimentation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Caplan, A I -- Ordahl, C P -- New York, N.Y. -- Science. 1978 Jul 14;201(4351):120-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/351805" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blastocyst/physiology ; *Cell Differentiation ; Cell Nucleus/physiology ; Cytoplasm/physiology ; Environment ; Enzyme Repression ; Extremities/physiology ; *Genes ; *Models, Biological ; *Morphogenesis ; Phenotype ; Regeneration ; Transcription, Genetic
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  • 16
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1978-12-01
    Description: Early mental development is analyzed from an evolutionary viewpoint and related to the dynamic interplay of genetic programming, maturational status, and environmental influence. Data are reported from a large sample of twins and siblings who have been tested longitudinally from 3 months to 6 years of age. Monozygotic twins became increasingly concordant with age and also paralleled each other for the spurts and lags in development. Dizygotic twins became less concordant with age and eventually matched their singleton siblings as closely as one another. The overall results suggested that the course of mental development is guided by the intrinsic scheduling of the genetic program acting in concert with maturational status and environmental influence.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilson, R S -- New York, N.Y. -- Science. 1978 Dec 1;202(4371):939-48.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/568822" target="_blank"〉PubMed〈/a〉
    Keywords: Behavior/physiology ; *Biological Evolution ; Child ; Child, Preschool ; Environment ; Female ; Genes ; *Growth ; Humans ; Infant ; Infant, Newborn ; Infant, Premature ; Intelligence ; Mental Processes/*physiology ; Pregnancy ; *Twins
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  • 17
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1978-04-07
    Description: Sensitivity to static pictorial information for depth develops between 22 and 26 weeks of age. When conflicting binocular and surface-texture information was minimized, 26- to 30-week-old infants directed their reaching to the apparently closer side of a photograph of a window rotated in depth. Younger infants, from 20 to 22 weeks of age, did not direct their reaching to the pictorially nearer side of the display but did reach with a high degree of directionality when presented with a real window rotated in depth.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yonas, A -- Cleaves, W T -- Pettersen, L -- New York, N.Y. -- Science. 1978 Apr 7;200(4337):77-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/635576" target="_blank"〉PubMed〈/a〉
    Keywords: Behavior/physiology ; *Child Development ; Depth Perception/*physiology ; Environment ; Humans ; Infant
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  • 18
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1978-09-29
    Description: Chicks whose vision was restricted to the frontal visual field became extremely myopic (mean, -10 diopters; maximum, -24 diopters) and had eyes of increased axial length. Animals restricted to lateral field vision did not differ from normal animals. Monocular deprivation of form vision also produced myopia and eye enlargement and, in addition, produced increased anterior chamber depth.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wallman, J -- Turkel, J -- Trachtman, J -- New York, N.Y. -- Science. 1978 Sep 29;201(4362):1249-51.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/694514" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chickens ; Environment ; Eye/pathology ; Myopia/*etiology/pathology ; Visual Fields
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