27 results match your criteria catchment hundreds

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Aquatic Ecosystems of the Anthropocene: Limnology and Microbial Ecology of Mine Pit Lakes.

Microorganisms 2021 Jun 3;9(6). Epub 2021 Jun 3.

Mine Water and Environment Research Centre (MiWER), School of Science, Edith Cowan University, 270 Joondalup Drive, Joondalup 6101, Australia.

Mine pit lakes ('pit lakes') are new aquatic ecosystems of the Anthropocene. Potentially hundreds of meters deep, these lakes are prominent in the landscape and in the public consciousness. However, the ecology of pit lakes is underrepresented in the literature. Read More

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Impacts of coastal land use change in the wet tropics on nearshore coral reefs: Case studies from Papua New Guinea.

Mar Pollut Bull 2021 Jul 12;168:112445. Epub 2021 May 12.

Formerly ARC Centre of Excellence for Coral Reef Studies, College of Science and Engineering, James Cook University, Townsville, QLD, Australia.

Logging and plantation agriculture are vital to economies and livelihoods in tropical nations, including Papua New Guinea. To meet global demand, hundreds of thousands of ha of diverse natural habitat have been logged, cleared and replaced with monoculture crops. Resulting hydrological changes have increased sediment, nutrient and pesticide runoff, impacting down-stream habitats. Read More

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Rapidly measuring spatial accessibility of COVID-19 healthcare resources: a case study of Illinois, USA.

Int J Health Geogr 2020 09 14;19(1):36. Epub 2020 Sep 14.

CyberGIS Center for Advanced Digital and Spatial Studies, University of Illinois at Urbana-Champaign, Urbana, IL, USA.

Background: The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), causing the coronavirus disease 2019 (COVID-19) pandemic, has infected millions of people and caused hundreds of thousands of deaths. While COVID-19 has overwhelmed healthcare resources (e.g. Read More

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September 2020

Habitat use, movement and activity of two large-bodied native riverine fishes in a regulated lowland weir pool.

J Fish Biol 2020 Mar 23;96(3):782-794. Epub 2020 Feb 23.

Department of Environment, Land, Water and Planning, Arthur Rylah Institute for Environmental Research, Heidelberg, Australia.

The construction of dams and weirs, and associated changes to hydrological and hydraulic (e.g., water level and velocity) characteristics of rivers is a key environmental threat for fish. Read More

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Treatment as Prevention: Concepts and Challenges for Reducing HIV Incidence.

J Acquir Immune Defic Syndr 2019 12;82 Suppl 2:S104-S112

Departments of Social and Behavioral Sciences, Biostatistics, and Epidemiology of Microbial Diseases, Center for Methods in Implementation and Prevention Sciences, Yale School of Public Health, New Haven, CT.

Background: Four of the largest HIV prevention trials have been conducted in sub-Saharan Africa, enrolling hundreds of thousands of participants in catchment areas of millions of people. The trials have focused on community-level interventions to increase diagnosis and initiation of antiretroviral therapy (ART) to improve health and reduce HIV transmission. Universal test-and-treat strategies are deployed to achieve viral suppression thereby reducing risk to uninfected persons, known as treatment as prevention (TasP). Read More

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December 2019

A Diverse Array of Fluvial Depositional Systems in Arabia Terra: Evidence for mid-Noachian to Early Hesperian Rivers on Mars.

J Geophys Res Planets 2019 Jul 22;124(7):1913-1934. Epub 2019 Jul 22.

Planetary Science Institute Tucson AZ USA.

Branching to sinuous ridges systems, hundreds of kilometers in length and comprising layered strata, are present across much of Arabia Terra, Mars. These ridges are interpreted as depositional fluvial channels, now preserved as inverted topography. Here we use high-resolution image and topographic data sets to investigate the morphology of these depositional systems and show key examples of their relationships to associated fluvial landforms. Read More

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Long-term changes of water quality in aquaculture-dominated lakes as revealed by sediment geochemical records in Lake Taibai (Eastern China).

Chemosphere 2019 Nov 24;235:297-307. Epub 2019 Jun 24.

State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography & Limnology, Chinese Academy of Sciences, Nanjing, 210008, China.

The rapid development and exploitation of the Yangtze River basin in order to ensure human food security and increase living space in recent decades has resulted in significant potential for degradation of water quality in the river and in hundreds of lakes. Understanding how lake environments have evolved to their present state under a variety of external influences is crucial for evaluating their current status and anticipating future scenarios of environmental changes. However, the lakes along the middle reaches of the Yangtze River (MRY) are as yet little studied. Read More

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November 2019

Phenology of Trichodesmium spp. blooms in the Great Barrier Reef lagoon, Australia, from the ESA-MERIS 10-year mission.

PLoS One 2018 14;13(12):e0208010. Epub 2018 Dec 14.

Commonwealth Scientific and Industrial Research Organization (CSIRO), Canberra, Australia.

Trichodesmium, a filamentous bloom-forming marine cyanobacterium, plays a key role in the biogeochemistry of oligotrophic ocean regions because of the ability to fix nitrogen. Naturally occurring in the Great Barrier Reef (GBR), the contribution of Trichodesmium to the nutrient budget may be of the same order as that entering the system via catchment runoff. However, the cyclicity of Trichodesmium in the GBR is poorly understood and sparsely documented because of the lack of sufficient observations. Read More

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The Lake-Catchment (LakeCat) Dataset: characterizing landscape features for lake basins within the conterminous USA.

Freshw Sci 2018 Jun;37:208-221

National Health and Environmental Effects Research Laboratory, Western Ecology Division, US Environmental Protection Agency, 200 SW 35 Street, Corvallis, Oregon 97333 USA.

Natural and human-related landscape features influence the ecology and water quality of lakes. Summarizing these features in a hydrologically meaningful way is critical to understanding and managing lake ecosystems. Such summaries are often done by delineating watershed boundaries of individual lakes. Read More

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Early intervention services in Greece: Time to focus on people at high risk.

Psychiatriki 2018 Jan-Mar;29(1):58-63

Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom.

Over the last twenty years, a lot of early intervention services operate worldwide with the aim of offering assistance and promoting the early diagnosis and management, not only of people who experience a first episode of psychosis but also of individuals that are at high risk of developing psychosis. The early intervention services that operate in other countries have been reviewed in correlation with the current status of early intervention services for psychosis in Greece. Early intervention services were first established in Australia, and now hundreds of similar programs exist in Europe, North America and Asia. Read More

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October 2018

Estimation of p,p'-DDT degradation in soil by modeling and constraining hydrological and biogeochemical controls.

Environ Pollut 2018 Aug 11;239:179-188. Epub 2018 Apr 11.

Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University, Kamenice 753/5, Brno, 62500, Czech Republic; Norwegian Institute for Water Research, Oslo, NO-0349, Norway. Electronic address:

Despite not being used for decades in most countries, DDT remains ubiquitous in soils due to its persistence and intense past usage. Because of this it is still a pollutant of high global concern. Assessing long term dissipation of DDT from this reservoir is fundamental to understand future environmental and human exposure. Read More

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Potential for long-term transfer of dissolved organic carbon from riparian zones to streams in boreal catchments.

Glob Chang Biol 2015 Aug 20;21(8):2963-79. Epub 2015 Mar 20.

Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences (SLU), P.O. Box 7050, Lennart Hjelms väg 9, Uppsala, 750 07, Sweden.

Boreal regions store most of the global terrestrial carbon, which can be transferred as dissolved organic carbon (DOC) to inland waters with implications for both aquatic ecology and carbon budgets. Headwater riparian zones (RZ) are important sources of DOC, and often just a narrow 'dominant source layer' (DSL) within the riparian profile is responsible for most of the DOC export. Two important questions arise: how long boreal RZ could sustain lateral DOC fluxes as the sole source of exported carbon and how its hydromorphological variability influences this role. Read More

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Predicting aquifer response time for application in catchment modeling.

Ground Water 2015 May-Jun;53(3):475-84. Epub 2014 May 19.

CSIRO Water for a Healthy Country National Research Flagship, CSIRO Land and Water, Private Bag 2, Glen Osmond, SA 5064, Australia.

It is well established that changes in catchment land use can lead to significant impacts on water resources. Where land-use changes increase evapotranspiration there is a resultant decrease in groundwater recharge, which in turn decreases groundwater discharge to streams. The response time of changes in groundwater discharge to a change in recharge is a key aspect of predicting impacts of land-use change on catchment water yield. Read More

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January 2016

Dynamics of pollutant discharge in combined sewer systems during rain events: chance or determinism?

Water Sci Technol 2014 ;69(8):1751-8

IFSTTAR - Centre de Nantes-Département géotechnique eau et risques, route de Bouaye CS4, 44344 Bouguenais cedex, France.

A large database of continuous flow and turbidity measurements cumulating data on hundreds of rain events and dry weather days from two sites in Paris (called Quais and Clichy) and one in Lyon (called Ecully) is presented. This database is used to characterize and compare the behaviour of the three sites at the inter-events scale. The analysis is probed through three various variables: total volumes and total suspended solids (TSS) masses and concentrations during both wet and dry weather periods in addition to the contributions of diverse-origin sources to event flow volume and TSS load values. Read More

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[OFEK virtual medical records: an evaluation of an integrated hospital-community system].

Harefuah 2011 Feb;150(2):72-8, 209

Smokler Center for Health Policy Research, Myers-JDC-Brookdale Institute.

Background: In 2005, an innovative system of hospital-community on-line medical records ("OFEK") was established at Clalit Health Services to reduce costs and improve medical care.

Goals: To examine the utilization of OFEK and its impact on quality indicators and medical-service utilization.

Method: Examining frequency of use of OFEK with OFEK's own track-log data; "before" and "after" data were used to compare changes in quality indicators and service utilization for experimental versus control groups. Read More

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February 2011

The impact of an integrated hospital-community medical information system on quality of care and medical service utilisation in primary-care clinics.

Inform Health Soc Care 2011 Mar 3;36(2):63-74. Epub 2011 Feb 3.

Smokler Center for Health Policy Research, Myers-JDC-Brookdale Institute, JDC Hill, POB 3886, Jerusalem 91037, Israel.

Background: In 2005, an innovative system of hospital-community, on-line medical records (OFEK) was introduced in Clalit Health Services (CHS).

Goals: To examine OFEK's use and impact on quality indicators and medical-service utilisation in CHS primary-care clinics.

Methods: Examining the frequency of OFEK's use with its own track-log data; comparing 'before' and 'after' quality indicators and service utilisation of experimental versus control clinics. Read More

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Point-source effects on N and P uptake in a forested and an agricultural Mediterranean streams.

Sci Total Environ 2011 Feb 24;409(5):957-67. Epub 2010 Dec 24.

Departament d'Ecologia, Universitat de Barcelona, Diagonal 645, E-08028 Barcelona, Spain.

We examined the effect of point-source inputs from wastewater treatment plants (WWTP) on in-stream uptake of ammonium, nitrate and phosphate and compared it between two streams draining catchments with contrasting land use. The selected streams were La Tordera and Gurri (NE Spain), draining a forest- and an agriculture-dominated catchment, respectively. In each stream, we compared nutrient uptake metrics, estimated from nutrient additions, between two reaches located upstream and downstream of a WWTP input. Read More

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February 2011

Ethnoveterinary uses of medicinal plants among traditional herbal healers in Alaknanda catchment of Uttarakhand, India.

Afr J Tradit Complement Altern Med 2010 Apr 3;7(3):195-206. Epub 2010 Apr 3.

G.B. Pant Institute of Himalayan Environment and Development, Garhwal Unit, Uttarakhand, India.

The people of far-flung rural areas still depend to a large extent upon plants and household remedies for curing veterinary ailments. The folk knowledge of ethnoveterinary medicine and its significance has been identified by the traditional communities through a process of experience over hundreds of years. The paper deals with 34 ailments commonly found in nine different categories of livestock/animals (i e. Read More

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Family factors in the intergenerational transmission of offending.

Crim Behav Ment Health 2009 ;19(2):109-24

Institute of Criminology, Cambridge University, Cambridge, UK.

Background: Convicted parents tend to have convicted children, but there have been few previous studies of transmission between three generations, especially including both records and interviews for hundreds of people.

Method: In the Cambridge Study in Delinquent Development (CSDD), 411 south London males have been followed up from age 8 to age 48. These males (generation 2, G2) are compared with their fathers and mothers (generation 1, G1), and with their biological sons and daughters (generation 3, G3). Read More

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Population puzzle. Suburban sprawling.

Hosp Health Netw 2007 May;81(5):36-8, 40-2, 2

What's a hospital to do when hundreds and even thousands of new residents move into its formerly quiet little community every month? That's the predicament that Dixie Regional Medical Center in Utah and many other boom-town hospitals are in; they must decide how to transform themselves to meet the needs of a rapidly changing marketplace. City hospitals face a similar challenge: affluent young professionals and empty-nesters revitalize certain neighborhoods while other areas lose their long-time- and well-insured-population base to the suburbs. Read More

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Terrestrial discharge into the Great Barrier Reef Lagoon: nutrient behavior in coastal waters.

M J Devlin J Brodie

Mar Pollut Bull 2005 21;51(1-4):9-22. Epub 2004 Nov 21.

Centre for Environment, Fisheries and Aquaculture Science, Pakefield Road, Lowestoft NR33 0HT, UK.

Pollution of coastal regions of the Great Barrier Reef World Heritage Area (GBRWHA) is dominated by river discharge associated with agricultural development of the adjacent catchments. Runoff of sediment, nutrients and pesticides has sharply increased since European settlement. Since 1991 plumes from river discharge entering the GBRWHA have been mapped by aerial mapping of plume edges and concentrations of contaminants in plumes measured. Read More

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Accelerated sea-level rise from West Antarctica.

Science 2004 Oct 23;306(5694):255-8. Epub 2004 Sep 23.

EG&G Inc., NASA Goddard Space Flight Center (GSFC)/Wallops Flight Facility (WFF), Building N-159, Wallops Island, VA 23337, USA.

Recent aircraft and satellite laser altimeter surveys of the Amundsen Sea sector of West Antarctica show that local glaciers are discharging about 250 cubic kilometers of ice per year to the ocean, almost 60% more than is accumulated within their catchment basins. This discharge is sufficient to raise sea level by more than 0.2 millimeters per year. Read More

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October 2004

Sedimentology and geochemistry of a perennially ice-covered epishelf lake in Bunger Hills Oasis, East Antarctica.

Antarct Sci 2000 ;12(2):131-40

Earth and Environmental Sciences, University of Illinois at Chicago 60607, USA.

A process-oriented study was carried out in White Smoke lake, Bunger Hills, East Antarctica, a perennially ice-covered (1.8 to 2.8 m thick) epishelf (tidally-forced) lake. Read More

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December 2000

Malaria and the Narmada-river development in India: a case study of the Bargi dam.

Ann Trop Med Parasitol 1999 Jul;93(5):477-88

Malaria Research Centre (Field Station), Jabalpur, India.

The largest river-valley development to be proposed in India is that in the Narmada valley. The building of the Bargi dam, a multi-purpose irrigation and hydro-electric project, in Jabalpur, in central India, formed part of the first phase of the development of this valley (1974-1988). Many villages and several hectares of land in three districts were submerged as the waters rose behind the dam, the worst affected area being the catchment area of the primary health centre (PHC) at Narayanganj, in Mandla district. Read More

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[Reconstruction of mental health services in the Federation of Bosnia-Herzegovina].

Med Arh 1999 ;53(3):127-30

Psihijatrijska klinika, Univerziteta u Sarajevu.

The war in Bosnia and Herzegovina has caused severe suffering of the population, and left behind destruction and misery. Hundreds of thousands were killed, ten thousands were severely injured, and almost the whole population has endured severe psychological traumas. The consequences today are numerous stress related psychical disorders, and especially PTSD. Read More

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November 1999

HMOs move east.

L Kertesz

Mod Healthc 1995 Oct;25(44):73-4, 76-8, 80-1

California HMOs, experts in squeezing costs out of the healthcare system by slashing hospital utilization and placing more physicians at risk, are looking for new lands to conquer. Leading the trend are four big HMOs that have been on an expansion binge east of the Sierras in the past several years. Foundation Health Corp. Read More

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October 1995

Spatial diversity in the mid-Flandrian vegetation history of North Gill, North Yorkshire.

New Phytol 1993 Mar;123(3):599-647

Departments of Biological Sciences and Geography, University of Durham, Science Laboratories, South Road, Durham DH1 3LE, UK.

The results of investigating a series of 11 pollen and stratigraphic profiles in peats along a 350 m stream section are described. Each profile has a small pollen catchment overlapping little with its neighbour's and the diagrams therefore show fine spatial resolution of the vegetational history. Fine temporal resolution is provided by 1 cm, or for certain sections 1 mm, interval samples. Read More

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