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  • 1
    Article
    Article
    Language: English
    In: Nature, September 2019, Vol.573(7775), pp.487-490
    Description: In some ways, the British were playing catch-up. Since the mid-nineteenth century, local universities throughout the German-speaking states had been recruiting academic talent in contests for prestige - latter-day Galileos were snatched up by government-funded institutions. Before long, he was consulting...
    Keywords: Government ; History ; Policy ; Research Management
    ISSN: 00280836
    E-ISSN: 1476-4687
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  • 2
    Language: English
    In: Nature, April 7, 2011, Vol.472(7341), p.30(2)
    Keywords: Technical Institutes -- History ; Technical Institutes -- Finance ; Technical Institutes -- Innovations
    ISSN: 0028-0836
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  • 3
    Article
    Article
    In: Nature, 2017, Vol.543(7644), p.176
    Keywords: Military Science -- Analysis ; Satellites (Spacecraft) -- Technology Application;
    ISSN: 0028-0836
    E-ISSN: 1476-4687
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  • 4
    Language: English
    In: Nature, July 30, 2015, Vol.523(7562), p.523(3)
    Keywords: Nuclear Weapons – Social Aspects ; Physicists – Social Aspects
    ISSN: 0028-0836
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  • 5
    Language: English
    In: The Science of the Total Environment, April 15, 2013, Vol.450-451, p.92(16)
    Description: To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.scitotenv.2013.01.096 Byline: David Kaiser, Daniela Unger, Guanglong Qiu, Haolang Zhou, Huayang Gan Keywords: Macro-tides; Anthropogenic impact; Long-term trend; Flushing; Nutrient pollution; River export Abstract: Global understanding of land-ocean nutrient fluxes increasingly recognizes the disproportionate importance of small rivers. We studied nutrient fluxes from a small catchment in fast developing southern China to uncover effects of land-use. Water was sampled in the macro-tidal estuary of Nanliu River and adjacent Lianzhou Bay in spring and summer of investigate spatial and temporal variations of dissolved nutrients. High riverine concentrations of nitrate (NO.sub.3; up to 220[mu]M) and phosphate (PO.sub.4; up to 3.7[mu]M) mainly originated from agricultural fertilizer input. Riverine dissolved silica (Si; up to 47[mu]M) increased in the oligosaline part of the estuary through human disturbance of bottom sediments. Dissolved organic nitrogen (DON; up to 194[mu]M) and ammonium (NH.sub.4; up to 40[mu]M) concentrations increased within the estuary due to inputs from livestock and mussel beds, respectively. Aquaculture ponds contained high concentrations of NH.sub.4 (up to 355[mu]M) and DON (up to 151[mu]M) but are not an important source to the estuary due to rare wastewater discharge and low absolute nutrient amounts relative to river export. Nutrient concentrations in Lianzhou Bay were low because tidal currents disperse land-derived nutrients offshore into the adjacent Beibu Gulf. A high proportion of regenerated nitrogen in the bay suggests that primary production is sustained by rapid in situ nutrient cycling between primary producers and benthic consumers. High nutrient export makes the Nanliu River an important nutrient source for the north-western South China Sea, despite its proportionately small size. Macro-tide induced short-term concentration changes exceed variability on seasonal and sub-seasonal scales. All nutrients vary inter-annually and between seasons, depending on precipitation-driven river runoff. Total nutrient export to Beibu Gulf coastal waters is stronger during the high discharge period in summer and autumn. In recent years changing nitrogen to phosphorus ratios have alleviated phosphorus limitation in Lianzhou Bay, permitting increased primary productivity. Article History: Received 12 November 2012; Revised 28 January 2013; Accepted 28 January 2013
    Keywords: Ponds ; Rivers ; Fertilizers ; Rain ; Livestock ; Tidal Currents ; Phosphates ; Estuaries
    ISSN: 0048-9697
    Source: Cengage Learning, Inc.
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  • 6
    Language: English
    In: Nature, Dec 20, 2012, Vol.492(7429), p.345(3)
    Keywords: Influenza Research – Censorship ; Influenza Research – Ethical Aspects
    ISSN: 0028-0836
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  • 7
    Language: English
    In: Seminars in Pediatric Neurology, December 2013, Vol.20(4), pp.242-245
    Description: Our brain activity demonstrates amazing stability across multiple time frames ranging from a few milliseconds to several hours. The longer cycles are commonly called ultradian rhythms and they correspond to infralow frequencies (ILFs) in the milli-Hz range (0.001 Hz). Ultradian rhythms between 90 minutes and 2 hours or longer are readily observed in our electroencephalogram, and they reflect periods of activity and rest, cycles of cortical excitability and plasticity followed by relative inactivity. Our nightly sleep is organized into similar stages (rapid eye movement and non–rapid eye movement sleep) as is our daily behavior (ie, the basic rest-activity cycle). Astrocytes often exhibit milli-Hz ILFs, and they play a major role in shaping neuronal plasticity and activity, and thus may organize or influence the basic rhythms of sleep and waking. The nature and importance of astrocytes in human brain functioning is subsequently reviewed.
    Keywords: Medicine
    ISSN: 1071-9091
    E-ISSN: 1558-0776
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  • 8
    Language: English
    In: Journal of Substance Abuse Treatment, January 2016, Vol.60, pp.21-26
    Description: Screening, Brief Intervention, and Referral to Treatment (SBIRT) is a public health program used to identify, reduce, and prevent problematic use, abuse, and dependence on alcohol and illicit drugs that has been adapted for implementation in emergency departments and ambulatory clinics nationwide. This study used a combination of observational, timing, and descriptive analyses from a multisite evaluation to understand the workflow processes implemented in 21 treatment settings. Direct observations of 59 SBIRT practitioners and semi-structured interviews with 170 stakeholders, program administrators, practitioners, and program evaluators provided information about workflow in different medical care settings. The SBIRT workflow processes are presented at three levels: service delivery, information storage, and information sharing. Analyses suggest limited variation in the overall workflow processes across settings, although performance sites tailored the program to fit with existing clinical processes, health information technology, and patient characteristics. Strategies for successful integration include co-locating SBIRT providers in the medical care setting and integrating SBIRT data into electronic health records. Provisions within the Patient Protection and Affordable Care Act of 2010 call for the integration of behavioral health and medical care services. SBIRT is being adapted in different types of medical care settings, and the workflow processes are being adapted to ensure efficient delivery, illustrating the successful integration of behavioral health and medical care.
    Keywords: Sbirt ; Workflow ; Process ; Integration ; Emergency Department ; Ambulatory Clinic ; Social Welfare & Social Work
    ISSN: 0740-5472
    E-ISSN: 1873-6483
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  • 9
    Language: English
    In: Chemosphere, June 2016, Vol.153, pp.39-47
    Description: Sediment cores from the central Beibu Gulf and its northern coastal mangroves were analyzed for polycyclic aromatic hydrocarbons (PAH), the organo-chlorine pesticides dichlorodiphenyltrichloroethane (DDT) and hexachlorobenzene (HCB), and polychlorinated biphenyls (PCB), to reconstruct the organic pollution history of developing south-west China. Reflecting regional development, in the gulf ∑PAH (38–74 ng g ) decreased towards the surface after peak concentrations near 10 cm, while ∑DDT (ND – 0.5 ng g ) increased due to fresh inputs, and HCB (ND – 0.04 ng g ) occurred only in surface sediments. Profiles in mangrove sediments showed a continuing local scale increase in ∑PAH (29–438 ng g ) as well as ∑DDT (0.2–41.0 ng g ) and HCB (0.01–1.01 ng g ) pollution, despite some variability. No trend was evident for ∑PCB (ND – 0.22 ng g ), which was not detected in the central gulf. Calculated loads estimate that 2816 ng cm PAHs and 7 ng cm DDTs are stored in depositional areas of the Beibu Gulf. Mangrove sediments, threatened by land-use-change, contain 1400–4600 ng cm PAHs and 34–39 ng cm DDTs.
    Keywords: Sediment Cores ; Pollution Trends ; Polycyclic Aromatic Hydrocarbons ; Organo-Chlorine Pesticides ; Mass Inventory ; South China Sea ; Chemistry ; Ecology
    ISSN: 0045-6535
    E-ISSN: 1879-1298
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  • 10
    Article
    Article
    In: Science, June 14, 1996, Vol.272(5268), p.1598(1)
    Description: Bacteria often practice autoinduction, in which a molecule released and reabsorbed by the same cell adjusts genetic expression according to local density of signalling cells. Autoinducers, first noticed in luminescent bacteria, were identified in Agrobacterium tumefaciens by Margaret More.
    Keywords: Bacteria -- Research ; Cell Interactions -- Research ; Bioluminescence -- Research ; Genetic Regulation -- Research
    ISSN: 0036-8075
    E-ISSN: 10959203
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