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https://www.readbyqxmd.com/read/28538656/recent-advances-in-c-c-and-c-n-bond-forming-reactions-catalysed-by-polystyrene-supported-copper-complexes
#1
REVIEW
Pavel Drabina, Jan Svoboda, Miloš Sedlák
This present mini-review covers recently published results on Cu(I) and Cu(II) complexes immobilized on polystyrene carriers, which are used as heterogeneous, eco-friendly reusable catalysts applied for carbon-carbon and carbon-nitrogen forming reactions. Recent advances and trends in this area are demonstrated in the examples of oxidative homocoupling of terminal alkynes, the synthesis of propargylamines, nitroaldolization reactions, azide alkyne cycloaddition, N-arylation of nitrogen containing compounds, aza-Michael additions, asymmetric Friedel-Crafts reactions, asymmetric Mukaiyama aldol reactions, and asymmetric 1,3-dipolar cycloaddition of azomethine ylides...
May 24, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28535172/invited-commentary-the-framingham-offspring-study-a-pioneering-investigation-into-familial-aggregation-of-cardiovascular-risk
#2
JoAnn E Manson, Shari S Bassuk
Launched in 1948, the Framingham Heart Study was a seminal prospective cohort study of 5,209 adult residents of Framingham, Massachusetts, that was designed to uncover the determinants and natural history of coronary heart disease. Data from this original cohort established the cardiac threat posed by high blood pressure, high cholesterol, smoking, obesity, physical inactivity, diabetes, and other factors. In the late 1960s, investigators conceived the innovative idea of assembling a second cohort that comprised the adult children of the original study population (and these children's spouses)...
May 23, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28534769/a-systematic-investigation-of-lateral-estimation-using-various-interpolation-approaches-in-conventional-ultrasound-imaging
#3
Zhi Liu, Chengwu Huang, Jianwen Luo
Accurate lateral displacement and strain estimat- ion is critical for some applications of elasticity imaging. Typically, motion estimation in the lateral direction is challenging because of low sampling frequency and lack of phase information in conventional ultrasound imaging. Several approaches have been proposed to improve the performance of lateral estimation, such as lateral interpolation on the RF signals (Interp_RF), lateral interpolation on the cross-correlation function (Interp_CCF) and lateral interpolation on both the RF signals and cross-correlation function (Interp_Both)...
May 17, 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28534377/incidence-and-mortality-trends-of-ovarian-cancer-in-central-serbia
#4
Aleksandar Antonijevic, Natasa Rancic, Mirko Ilic, Branislav Tiodorovic, Miodrag Stojanovic, Jasmina Stefanovic
PURPOSE: Ovarian cancer (OC) is the most fatal cancer in females. The objective of this paper was to determine the incidence and mortality trends of OC in central Serbia from 1999 to 2003. METHODS: Data about all new cases and deaths of OC were obtained from the Serbian Cancer Registry. Data were analyzed for the central of Serbia which encompasses the territory of Serbia without its northern and southern regions. Data of the female population were obtained from the population censuses in the years 1991, 2002 and 2011...
March 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28534269/water-quality-trend-and-change-point-analyses-using-integration-of-locally-weighted-polynomial-regression-and-segmented-regression
#5
Hong Huang, Zhenfeng Wang, Fang Xia, Xu Shang, YuanYuan Liu, Minghua Zhang, Randy A Dahlgren, Kun Mei
Trend and change-point analyses of water quality time series data have important implications for pollution control and environmental decision-making. This paper developed a new approach to assess trends and change-points of water quality parameters by integrating locally weighted polynomial regression (LWPR) and segmented regression (SegReg). Firstly, LWPR was used to pretreat the original water quality data into a smoothed time series to represent the long-term trend of water quality. Then, SegReg was used to identify the long-term trends and change-points of the smoothed time series...
May 23, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28532622/solid-waste-generation-and-characterization-in-the-university-of-lagos-for-a-sustainable-waste-management
#6
A E Adeniran, A T Nubi, A O Adelopo
Waste characterization is the first step to any successful waste management policy. In this paper, the characterization and the trend of solid waste generated in University of Lagos, Nigeria was carried out using ASTM D5231-92 and Resource Conservation Reservation Authority RCRA Waste Sampling Draft Technical Guidance methods. The recyclable potential of the waste is very high constituting about 75% of the total waste generated. The estimated average daily solid waste generation in Unilag Akoka campus was estimated to be 32...
May 19, 2017: Waste Management
https://www.readbyqxmd.com/read/28532308/contributions-of-national-and-global-health-estimates-to-monitoring-health-related-sustainable-development-goals-in-thailand
#7
Kanitta Bundhamcharoen, Supon Limwattananon, Khanitta Kusreesakul, Viroj Tangcharoensathien
The Millennium Development Goals (MDGs) triggered increased demand for data on child and maternal mortality for monitoring progress. With the advent of the Sustainable Development Goals (SDGs) and growing evidence of an epidemiological transition towards non-communicable diseases, policy makers need data on mortality and disease trends and distribution to inform effective policies and support monitoring progress. Where there are limited capacities to produce national health estimates (NHEs), global health estimates (GHEs) can fill gaps for global monitoring and comparisons...
January 2017: Global Health Action
https://www.readbyqxmd.com/read/28532304/producing-hiv-estimates-from-global-advocacy-to-country-planning-and-impact-measurement
#8
Mary Mahy, Tim Brown, John Stover, Neff Walker, Karen Stanecki, Wilford Kirungi, Txema Garcia-Calleja, Peter D Ghys
BACKGROUND: The development of global HIV estimates has been critical for understanding, advocating for and funding the HIV response. The process of generating HIV estimates has been cited as the gold standard for public health estimates. OBJECTIVE: This paper provides important lessons from an international scientific collaboration and provides a useful model for those producing public health estimates in other fields. DESIGN: Through the compilation and review of published journal articles, United Nations reports, other documents and personal experience we compiled historical information about the estimates and identified potential lessons for other public health estimation efforts...
January 2017: Global Health Action
https://www.readbyqxmd.com/read/28531949/wastewater-discharge-impact-on-drinking-water-sources-along-the-yangtze-river-china
#9
Zhuomin Wang, Dongguo Shao, Paul Westerhoff
Unplanned indirect (de facto) wastewater reuse occurs when wastewater is discharged into surface waters upstream of potable drinking water treatment plant intakes. This paper aims to predict percentages and trends of de facto reuse throughout the Yangtze River watershed in order to understand the relative contribution of wastewater discharges into the river and its tributaries towards averting water scarcity concerns. The Yangtze River is the third longest in the world and supports more than 1/15 of the world's population, yet the importance of wastewater on the river remains ill-defined...
May 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28530625/-robot-assisted-and-laparoscopic-pyeloplasty
#10
Juan Ignacio Pascual-Piédrola, Imanol Merino-Narro, Mateo Hevia-Suárez, Francisco Javier Ancizu-Marckert, Ángel García-Cortés, Pablo Domenech-López
OBJECTIVES: Uretero-pelvic junction (UPJ) obstruction has been classically treated by open dismembered pyeloplasty. Recently, laparoscopic (LP) and robotic pyeloplasty (RP) have become the techniques of choice for the treatment of UPJ stenosis in adult and pediatric population. Our objective in this paper is to review the results of minimally invasive surgery as the treatment of UPJ obstruction, the trend to use these approaches and the current limits of LP and RP. METHODS: A review of most relevant papers and meta-analysis about LP and RP in pediatric and adult population was performed using PubMed...
May 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28529670/perspective-fabrication-of-integrated-organ-on-a-chip-via-bioprinting
#11
Qingzhen Yang, Qin Lian, Feng Xu
Organ-on-a-chip has emerged as a powerful platform with widespread applications in biomedical engineering, such as pathology studies and drug screening. However, the fabrication of organ-on-a-chip is still a challenging task due to its complexity. For an integrated organ-on-a-chip, it may contain four key elements, i.e., a microfluidic chip, live cells/microtissues that are cultured in this chip, components for stimulus loading to mature the microtissues, and sensors for results readout. Recently, bioprinting has been used for fabricating organ-on-a-chip as it enables the printing of multiple materials, including biocompatible materials and even live cells in a programmable manner with a high spatial resolution...
May 2017: Biomicrofluidics
https://www.readbyqxmd.com/read/28527153/the-rise-of-phenology-with-climate-change-an-evaluation-of-ijb-publications
#12
Alison Donnelly, Rong Yu
In recent decades, phenology has become an important tool by which to measure both the impact of climate change on ecosystems and the feedback of ecosystems to the climate system. However, there has been little attempt to date to systematically quantify the increase in the number of scientific publications with a focus on phenology and climate change. In order to partially address this issue, we examined the number of articles (original papers, reviews and short communications) containing the terms 'phenology' and 'climate change' in the title, abstract or keywords, published in the International Journal of Biometeorology in the 60 years since its inception in 1957...
May 19, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28526627/dynamic-fatigue-measurement-of-human-erythrocytes-using-dielectrophoresis
#13
Yuhao Qiang, Jia Liu, E Du
Erythrocytes must undergo severe deformation to pass through narrow capillaries and submicronic splenic slits for several hundred thousand times in their normal lifespan. Studies of erythrocyte biomechanics have been mainly focused on cell deformability and rheology measured from a single application of stress and mostly under a static or quasi-static state using classical biomechanical techniques, such as optical tweezers and micropipette aspiration. Dynamic behavior of erythrocytes in response to cyclic stresses that contributes to the membrane failure in blood circulation is not fully understood...
May 16, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28526393/energy-drink-consumption-and-marketing-in-south-africa
#14
Nicholas Stacey, Corné van Walbeek, Mashekwa Maboshe, Aviva Tugendhaft, Karen Hofman
Energy drinks are a fast-growing class of beverage containing high levels of caffeine and sugar. Advertising and marketing have been key to their growth in South Africa. This paper documents trends in energy drink consumption and energy drink advertising, and examines the relationship between exposure to energy drink advertising and consumption. Logistic regressions were estimated of categories of energy drink consumption on individual characteristics, as well as exposure to energy drink advertising. Exposure to advertising is measured by reported viewing of channels high in energy drink advertising...
May 16, 2017: Preventive Medicine
https://www.readbyqxmd.com/read/28521750/data-for-improvement-and-clinical-excellence-a-report-of-an-interrupted-time-series-trial-of-feedback-in-home-care
#15
Kimberly D Fraser, Anne E Sales, Melba Andrea B Baylon, Corinne Schalm, John J Miklavcic
BACKGROUND: There is substantial evidence about the effectiveness of audit with feedback, but none that we know have been conducted in home care settings. The primary purpose of the Data for Improvement and Clinical Excellence - Home Care (DICE-HC) project was to evaluate the effects of an audit and feedback delivered to care providers on home care client outcomes. The objective of this paper is to report the effects of feedback on four specific quality indicators: pain, falls, delirium, and hospital visits...
May 18, 2017: Implementation Science: IS
https://www.readbyqxmd.com/read/28517028/aic-identifies-optimal-representation-of-longitudinal-dietary-variables
#16
John VanBuren, Joseph Cavanaugh, Teresa Marshall, John Warren, Steven M Levy
OBJECTIVES: The Akaike Information Criterion (AIC) is a well-known tool for variable selection in multivariable modeling as well as a tool to help identify the optimal representation of explanatory variables. However, it has been discussed infrequently in the dental literature. The purpose of this paper is to demonstrate the use of AIC in determining the optimal representation of dietary variables in a longitudinal dental study. METHODS: The Iowa Fluoride Study enrolled children at birth and dental examinations were conducted at ages 5, 9, 13, and 17...
May 18, 2017: Journal of Public Health Dentistry
https://www.readbyqxmd.com/read/28514641/mapping-workforce-configuration-and-operational-models-in-australian-emergency-departments-a-national-survey
#17
Glenn Gardner, Anne Gardner, Sandy Middleton, Julie Considine, Gerard Fitzgerald, Luke Christofis, Anna Doubrovsky, Margaret Adams, Jane O'Connell
Objective Hospital emergency departments (ED) in Australia and internationally have been experiencing increased demand, resulting in reduced hospital quality, impaired access and adverse health outcomes. Effective evaluation of new ED service models and their effect on outcomes is reliant on baseline measures of the staffing configuration and organisational characteristics of the EDs being studied. The aim of the present study was to comprehensively measure these variables in Australian EDs.Methods Australian hospital EDs with 24-h medical and nursing cover were identified and invited to participate in the study...
May 18, 2017: Australian Health Review: a Publication of the Australian Hospital Association
https://www.readbyqxmd.com/read/28514311/trends-in-esophageal-and-esophagogastric-junction-cancer-research-from-2007-to-2016-a-bibliometric-analysis
#18
Yan Miao, Ran Liu, Yuepu Pu, Lihong Yin
BACKGROUND: This study aimed to analyze the scientific outputs of esophageal and esophagogastric junction (EGJ) cancer and construct a model to quantitatively and qualitatively evaluate pertinent publications from the past decade. METHODS: Publications from 2007 to 2016 were retrieved from the Web of Science Core Collection database. Microsoft Excel 2016 (Redmond, WA) and the CiteSpace (Drexel University, Philadelphia, PA) software were used to analyze publication outcomes, journals, countries, institutions, authors, research areas, and research frontiers...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28512075/public-trust-in-vaccination-an-analytical-framework
#19
Vijayaprasad Gopichandran
While vaccination is one of the most successful public health interventions, there has always been a parallel movement against vaccines. Apart from scientific factors, the uptake of vaccinations is influenced by historical, political, sociocultural and economic factors. In India, the health system is struggling with logistical weaknesses in taking vaccination to the remotest corners; while on the other hand, some people in places where vaccination is available resist it. Unwillingness to be vaccinated is a growing problem in the developed world...
April 2017: Indian Journal of Medical Ethics
https://www.readbyqxmd.com/read/28511832/impact-factor-universalism-and-reliability-of-assessment
#20
Andrzej Grzybowski, Rafał Patryn
In 1955, Eugene Garfield (1925-1917) published a paper in Science where for the first time he advocated the necessity of introducing parameters to assess the quality of scientific journals. Underlying this necessity was an observation of a trend where the whole area of influence in academic publishing was dominated by a narrow group of large interdisciplinary research journals. For this reason, along with Irving H. Sher, they created the impact factor (IF), also called the Garfield impact factor, journal citation rate, journal influence, and journal impact factor...
May 2017: Clinics in Dermatology
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