keyword
MENU ▼
Read by QxMD icon Read
search

1977

keyword
https://www.readbyqxmd.com/read/28110198/variation-of-atmospheric-14-co2-and-its-spatial-distribution
#1
Shugang Wu
The atmospheric (14)CO2 is usually presented in the Δ(14)C notation, which cannot reflect its absolute quantity change. This article presents the atmospheric radiocarbon activity concentrations (aacn, reported in mBq/m(3)) in recent years at nine observation stations. The aacn at Schauinsland decrease from 1977 to 1993 but between 1993 and 2003 keeps at a relative steady state. Atmospheric aacns were higher in the northern hemisphere than that in the southern hemisphere. The aacns in the northern hemisphere show clear seasonal cycle with higher value in winter and lower value in summer, while this seasonality is not obvious in the southern hemisphere...
January 19, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28109825/trends-in-coronary-risk-factors-and-electrocardiogram-findings-from-1977-to-2009-with-10-year-mortality-in-japanese-elderly-males-the-tanushimaru-study
#2
Sachiko Nakamura, Hisashi Adachi, Mika Enomoto, Ako Fukami, Eita Kumagai, Yume Nohara, Shoko Kono, Erika Nakao, Akiko Sakaue, Tomoko Tsuru, Nagisa Morikawa, Yoshihiro Fukumoto
BACKGROUND: An understanding of the trends in regard to coronary risk factors and electrocardiogram (ECG) findings has an important role in public health. We investigated the trends in coronary risk factors and main ECG findings in 1977, 1989, 1999, and 2009 in the Japanese cohort of the Seven Countries Study, in Tanushimaru, a typical farming town on Kyushu Island. METHODS AND RESULTS: A total of 1397 subjects (231 in 1977, 332 in 1989, 389 in 1999, and 445 in 2009) were enrolled in this study, and all of them were males aged over 65 years...
January 18, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28109411/the-challenge-in-improving-the-diets-of-supplemental-nutrition-assistance-program-recipients-a-historical-commentary
#3
EDITORIAL
Barry M Popkin
This paper provides a historical background for the current nutrition issues faced by the Supplemental Nutrition Assistance Program (SNAP). The Food Stamp Program evolved into SNAP during a period when U.S. diets, particularly those of the poor, became less healthful. During the 1960s, the U.S. (Kennedy-Johnson era) addressed malnutrition first with a pilot project focused on retail sales and cash food stamps, which showed that low-income consumers purchased relatively healthy foods for a fairly high-quality diet...
February 2017: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28103844/genetic-risk-score-and-risk-of-stage-3-chronic-kidney-disease
#4
Jiantao Ma, Qiong Yang, Shih-Jen Hwang, Caroline S Fox, Audrey Y Chu
BACKGROUND: We developed a genetic risk score (GRS) and examined whether the GRS may predict incident stage 3 chronic kidney disease (CKD) independent of common clinical risk factors. METHOD: The present study included 2,698 individuals who attended the 15th (1977 to 1979) and the 24th exams (1995 to 1998) in the Framingham Original cohort or the 6th (1995 to 1998) and the 8th exams (2005 to 2008) in the Framingham Offspring cohort. A weighted GRS was constructed combining 53 single nucleotide polymorphisms (SNPs) associated with lower creatinine-based estimated glomerular filtration rate (eGFR)...
January 19, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28103712/endogenous-and-antipsychotic-related-risks-for-diabetes-mellitus-in-young-people-with-schizophrenia-a-danish-population-based-cohort-study
#5
Anto P Rajkumar, Henriette Thisted Horsdal, Theresa Wimberley, Dan Cohen, Ole Mors, Anders D Børglum, Christiane Gasse
OBJECTIVE: Diabetes mellitus contributes to excessive cardiovascular deaths and reduced life expectancy in schizophrenia. This population-based cohort study investigated the endogenous risk for diabetes in antipsychotic-naive schizophrenia and evaluated the risks added by starting antipsychotic treatment in people with schizophrenia. METHOD: The study followed all people born in Denmark on or after Jan. 1, 1977, until Jan. 1, 2013 (N=2,736,510). The Danish Psychiatric Central Research Register ascertained schizophrenia diagnoses...
January 20, 2017: American Journal of Psychiatry
https://www.readbyqxmd.com/read/28091881/identifying-metabolites-of-meclonazepam-by-high-resolution-mass-spectrometry-using-human-liver-microsomes-hepatocytes-a-mouse-model-and-authentic-urine-samples
#6
Svante Vikingsson, Ariane Wohlfarth, Mikael Andersson, Henrik Gréen, Markus Roman, Martin Josefsson, Fredrik C Kugelberg, Robert Kronstrand
Meclonazepam is a benzodiazepine patented in 1977 to treat parasitic worms, which recently appeared as a designer benzodiazepine and drug of abuse. The aim of this study was to identify metabolites suitable as biomarkers of drug intake in urine using high-resolution mass spectrometry, authentic urine samples, and different model systems including human liver microsomes, cryopreserved hepatocytes, and a mice model. The main metabolites of meclonazepam found in human urine were amino-meclonazepam and acetamido-meclonazepam; also, minor peaks for meclonazepam were observed in three of four urine samples...
January 13, 2017: AAPS Journal
https://www.readbyqxmd.com/read/28079064/lasing-action-from-photonic-bound-states-in-continuum
#7
Ashok Kodigala, Thomas Lepetit, Qing Gu, Babak Bahari, Yeshaiahu Fainman, Boubacar Kanté
In 1929, only three years after the advent of quantum mechanics, von Neumann and Wigner showed that Schrödinger's equation can have bound states above the continuum threshold. These peculiar states, called bound states in the continuum (BICs), manifest themselves as resonances that do not decay. For several decades afterwards the idea lay dormant, regarded primarily as a mathematical curiosity. In 1977, Herrick and Stillinger revived interest in BICs when they suggested that BICs could be observed in semiconductor superlattices...
January 11, 2017: Nature
https://www.readbyqxmd.com/read/28078751/cardiac-remodelling-during-normotensive-and-hypertensive-complicated-pregnancies-a-systematic-review-and-meta-analysis
#8
REVIEW
Sander de Haas, Chahinda Ghossein-Doha, Lauren Geerts, Sander Mj van Kuijk, Joris van Drongelen, Marc Ea Spaanderman
OBJECTIVE: The aim of this systematic review and meta-analyses was to comprehensively describe the normotensive pattern of cardiac remodelling during human singleton pregnancies and compared to that during hypertensive complicated pregnancies. METHODS: We performed a meta-analysis of the current literature on cardiac remodelling during normotensive and complicated pregnancies. Literature was retrieved from PubMed (NCBI) and Embase (Ovid) databases. Included studies needed to report a reference measurement (matched non-pregnant control group, pre-pregnancy, or post-partum) and measurements during a predetermined gestational interval...
January 12, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28068340/phylogeography-of-rift-valley-fever-virus-in-africa-and-the-arabian-peninsula
#9
Abdallah M Samy, A Townsend Peterson, Matthew Hall
Rift Valley Fever is an acute zoonotic viral disease caused by Rift Valley Fever virus (RVFV) that affects ruminants and humans in Sub-Saharan Africa and the Arabian Peninsula. We used phylogenetic analyses to understand the demographic history of RVFV populations, using sequence data from the three minigenomic segments of the virus. We used phylogeographic approaches to infer RVFV historical movement patterns across its geographic range, and to reconstruct transitions among host species. Results revealed broad circulation of the virus in East Africa, with many lineages originating in Kenya...
January 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28067518/agglomeration-of-monomers-and-dimers-contribution-in-precipitation-kinetics-microscopic-approach
#10
Gersh O Berim, Lana I Brim, Eli Ruckenstein
A microscopic theory of precipitation kinetics in solution developed previously by Ruckenstein and co-workers (Dadyburjor, D.B.; Ruckenstein E. {\it J.Cryst.Growth} 1977, {\bf 40}, 279-290; Bhakta, A.; Ruckenstein E. {\it J.Chem.Phys.} 1995, {\bf 103}, 7120-7135.) is generalized. The processes (not considered in the original approach) of monomer-monomer agglomeration leading to creation of dimers as well as absorption (emission) of dimers by solute particles leading to their growth (decay) are included in the theory...
January 9, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28061544/findings-from-the-adjuvant-colon-cancer-end-points-accent-collaborative-group-the-power-of-pooled-individual-patient-data-from-multiple-clinical-trials
#11
Lindsay A Renfro, Daniel J Sargent
The Adjuvant Colon Cancer End Points (ACCENT) Collaborative Group was formed 15 years ago to address scientific questions in early stage colon cancer that could best be answered by pooling individual patient data across many randomized clinical trials. Today, the ACCENT database contains detailed information collected from over 40,000 patients enrolled onto 27 major adjuvant colon cancer trials conducted between 1977 and 2009. Since its inception, the ACCENT group has led many sophisticated analyses addressing a variety of clinical questions, such as the long-term survivorship of colon cancer patients by treatment, the time course of oxaliplatin benefit, and support for the use of disease-free survival (DFS) as a surrogate endpoint for overall survival (OS), among many others...
December 2016: Chinese Clinical Oncology
https://www.readbyqxmd.com/read/28060931/earliest-human-presence-in-north-america-dated-to-the-last-glacial-maximum-new-radiocarbon-dates-from-bluefish-caves-canada
#12
Lauriane Bourgeon, Ariane Burke, Thomas Higham
The timing of the first entry of humans into North America is still hotly debated within the scientific community. Excavations conducted at Bluefish Caves (Yukon Territory) from 1977 to 1987 yielded a series of radiocarbon dates that led archaeologists to propose that the initial dispersal of human groups into Eastern Beringia (Alaska and the Yukon Territory) occurred during the Last Glacial Maximum (LGM). This hypothesis proved highly controversial in the absence of other sites of similar age and concerns about the stratigraphy and anthropogenic signature of the bone assemblages that yielded the dates...
2017: PloS One
https://www.readbyqxmd.com/read/28060810/whole-genome-sequence-analysis-of-salmonella-typhi-isolated-in-thailand-before-and-after-the-introduction-of-a-national-immunization-program
#13
Zoe A Dyson, Duy Pham Thanh, Ladaporn Bodhidatta, Carl Jeffries Mason, Apichai Srijan, Maia A Rabaa, Phat Voong Vinh, Tuyen Ha Thanh, Guy E Thwaites, Stephen Baker, Kathryn E Holt
Vaccines against Salmonella Typhi, the causative agent of typhoid fever, are commonly used by travellers, however, there are few examples of national immunization programs in endemic areas. There is therefore a paucity of data on the impact of typhoid immunization programs on localised populations of S. Typhi. Here we have used whole genome sequencing (WGS) to characterise 44 historical bacterial isolates collected before and after a national typhoid immunization program that was implemented in Thailand in 1977 in response to a large outbreak; the program was highly effective in reducing typhoid case numbers...
January 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28057146/-molecular-epidemiology-of-japanese-encephalitis-viruses-isolated-in-yunnan-province-1977-2010
#14
Y Feng, H L Zhang, W H Yang, Y Z Zhang, L J Huang, S Z Deng, Y J Sun, D J Yang, J H Zhou
Objective: To understand the genetic and molecular epidemiologic characteristics of 63 strains of Japanese encephalitis virus (JEV) isolated in Yunnan province, China during 1977-2010. Methods: Suckling mice were inoculated with viruses continuously and the viral nucleic acid were extracted from the brain-grinding supernatants of the infected and moribund mice, then the gene fragments of E region were amplified by RT-PCR. Bioinformatics (Clustal X, DNAstar, Mega 5.0 and other software) was used to analyze the nucleotide and deduced amino acid sequences and phylogenetic trees...
November 10, 2016: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28057010/update-on-lysinuric-protein-intolerance-a-multi-faceted-disease-retrospective-cohort-analysis-from-birth-to-adulthood
#15
Wladimir Mauhin, Florence Habarou, Stéphanie Gobin, Aude Servais, Anaïs Brassier, Coraline Grisel, Célina Roda, Graziella Pinto, Despina Moshous, Fahd Ghalim, Pauline Krug, Nelly Deltour, Clément Pontoizeau, Sandrine Dubois, Murielle Assoun, Louise Galmiche, Jean-Paul Bonnefont, Chris Ottolenghi, Jacques de Blic, Jean-Baptiste Arnoux, Pascale de Lonlay
BACKGROUND: Lysinuric protein intolerance (LPI) is a rare metabolic disease resulting from recessive-inherited mutations in the SLC7A7 gene encoding the cationic amino-acids transporter subunit y(+)LAT1. The disease is characterised by protein-rich food intolerance with secondary urea cycle disorder, but symptoms are heterogeneous ranging from infiltrative lung disease, kidney failure to auto-immune complications. This retrospective study of all cases treated at Necker Hospital (Paris, France) since 1977 describes LPI in both children and adults in order to improve therapeutic management...
January 5, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/28055035/dna-sequencing-technologies-2006-2016
#16
Elaine R Mardis
Recent advances in the field of genomics have largely been due to the ability to sequence DNA at increasing throughput and decreasing cost. DNA sequencing was first introduced in 1977, and next-generation sequencing technologies have been available only during the past decade, but the diverse experiments and corresponding analyses facilitated by these techniques have transformed biological and biomedical research. Here, I review developments in DNA sequencing technologies over the past 10 years and look to the future for further applications...
February 2017: Nature Protocols
https://www.readbyqxmd.com/read/28054202/best-one-hundred-papers-of-international-orthopaedics-a-bibliometric-analysis
#17
Andreas F Mavrogenis, Panayiotis D Megaloikonomos, Georgios N Panagopoulos, Cyril Mauffrey, Andrew Quaile, Marius M Scarlat
INTRODUCTION: International Orthopaedics was founded in 1977. Within the 40 volumes and 247 issues since its launch, 5462 scientific articles have been published. This article identifies, analyses and categorises the best cited articles published by the journal to date. METHODS: We searched Elsevier Scopus database for citations of all papers published in International Orthopaedics since its foundation. Source title was selected, and the journal's title was introduced in the search engine...
January 4, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28035469/tree-ring-based-reconstruction-of-streamflow-for-the-zaqu-river-in-the-lancang-river-source-region-china-over-the-past-419%C3%A2-years
#18
Dingmu Xiao, Xuemei Shao, Ningsheng Qin, Xiaomei Huang
Tree-ring width standard chronologies were created from juniperus przewalskii Kom data collected in the Lancang River Headwaters region. Statistical analysis results showed high correlation (r = 0.69) between the composite tree-ring chronology and instrumental streamflow records at the Xiangda Hydrological Station during the annual September-August interval. Streamflow of the Zaqu River in the Lancang river source region was reconstructed for the past 419 years. The model was stable and revealed 14 extremely dry years and 6 extremely wet years...
December 29, 2016: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28033270/pretreatment-elevated-serum-lactate-dehydrogenase-as-a-significant-prognostic-factor-in-malignant-mesothelioma-a-meta-analysis
#19
Yi Zhuo, Lanying Lin, Shushan Wei, Mingwei Zhang
BACKGROUND: Lactate dehydrogenase (LDH) as a hypoxia-regulator plays a vital role in alternative metabolic pathways of cancer cells. Numerous studies have assessed the prognostic value of elevated pretreatment LDH in malignant mesothelioma (MM). However, the results have been largely inconsistent. Hence, the aim of current study was to investigate the prognostic value of pretreatment LDH levels in patients with MM by performing a meta-analysis of relevant studies. METHODS: A literature search for English language studies, which investigated the association of LDH levels with overall survival (OS) in malignant mesothelioma, was performed in the electronic databases, PubMed, Medline, Embase, and Web of Science...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28026710/trends-in-unintentional-injury-mortality-in-canadian-children-1950-2009-and-association-with-selected-population-level-interventions
#20
Sarah A Richmond, Jennifer D'Cruz, Armend Lokku, Alison Macpherson, Andrew Howard, Colin Macarthur
OBJECTIVES: To examine unintentional injury mortality rates in children (0-19 years) in Canada from 1950 to 2009 against national population-level injury prevention interventions. METHODS: Injury mortality rates were age and sex adjusted. Changes in trend and level of mortality rates were assessed at pre-specified intervention periods using segmented linear regression analyses for interrupted time series. Maximum likelihood estimation was used with a second order autoregressive error process...
December 27, 2016: Canadian Journal of Public Health. Revue Canadienne de Santé Publique
keyword
keyword
84386
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"