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Chao Wu, Xinyue Ye, Fu Ren, You Wan, Pengfei Ning, Qingyun Du
Housing is among the most pressing issues in urban China and has received considerable scholarly attention. Researchers have primarily concentrated on identifying the factors that influence residential property prices and how such mechanisms function. However, few studies have examined the potential factors that influence housing prices from a big data perspective. In this article, we use a big data perspective to determine the willingness of buyers to pay for various factors. The opinions and geographical preferences of individuals for places can be represented by visit frequencies given different motivations...
2016: PloS One
Hiroko Makita, Emiko Tanaka, Satoshi Mitsunobu, Masayuki Miyazaki, Takuro Nunoura, Katsuyuki Uematsu, Yoshihiro Takaki, Shinro Nishi, Shigeru Shimamura, Ken Takai
A novel iron-oxidizing chemolithoautotrophic bacterium, strain ET2(T), was isolated from a deep-sea sediment in a hydrothermal field of the Bayonnaise knoll of the Izu-Ogasawara arc. Cells were bean-shaped, curved short rods. Growth was observed at a temperature range of 15-30 °C (optimum 25 °C, doubling time 24 h) and a pH range of 5.8-7.0 (optimum pH 6.4) in the presence of NaCl at a range of 1.0-4.0 % (optimum 2.75 %). The isolate was a microaerophilic, strict chemolithoautotroph capable of growing using ferrous iron and molecular oxygen (O2) as the sole electron donor and acceptor, respectively; carbon dioxide as the sole carbon source; and either ammonium or nitrate as the sole nitrogen source...
October 20, 2016: Archives of Microbiology
Franziska Szokoli, Michele Castelli, Elena Sabaneyeva, Martina Schrallhammer, Sascha Krenek, Thomas G Doak, Thomas U Berendonk, Giulio Petroni
In the past ten years, the number of endosymbionts described within the bacterial order Rickettsiales has constantly grown. Since 2006, 18 novel Rickettsiales genera inhabiting protists, such as ciliates and amoebae, have been described. In this work, we characterize two novel bacterial endosymbionts from Paramecium collected near Bloomington, Indiana (USA). Both endosymbiotic species inhabit the cytoplasm of the same host. The Gram-negative bacterium "Candidatus Bealeia paramacronuclearis" occurs in clumps and is frequently associated with the host macronucleus...
October 14, 2016: Applied and Environmental Microbiology
Anne Gulbech Ording, Uffe Heide-Jørgensen, Christian Fynbo Christiansen, Mette Nørgaard, John Acquavella, Henrik Toft Sørensen
Survival among patients with metastatic breast cancer may vary according to the site of metastasis and receptor status. We used Danish nationwide medical registries to establish a cohort of patients with metastatic breast cancer (870 with de novo metastatic disease and 3518 with recurrent disease with distant metastasis) diagnosed during 1997-2011. We examined 1-year and >1 to 5-year mortality associated with first site of metastasis and receptor expression status of the primary tumor. Cox proportional regression was used to compute confounder-adjusted mortality rate ratios (MRRs) associated with site of metastasis, stratified by receptor status...
October 7, 2016: Clinical & Experimental Metastasis
Priscila Corraini, Anne Gulbech Ording, Victor W Henderson, Szimonetta Szépligeti, Erzsébet Horváth-Puhó, Henrik Toft Sørensen
INTRODUCTION: The impact of cancer and other comorbidity on the risk of venous thromboembolism (VTE) after stroke is poorly understood. METHODS: We used Danish population-based national databases to conduct a cohort study encompassing 201,025 patients diagnosed with a first-time ischemic stroke, intracerebral hemorrhage, subarachnoid hemorrhage or unspecified stroke between 1995 and 2012. As a comparison cohort, 983,222 members of the general population were matched to the stroke patients by date of diagnosis, year of birth, sex, and specific comorbidities, using conditions in the Charlson Comorbidity Index and other VTE risk factors...
September 29, 2016: Thrombosis Research
Nicole L D'Antonio, David S Gilliam, Brian K Walker
Dense Acropora cervicornis aggregations, or patches, have been documented within nearshore habitats in Southeast Florida (SE FL) despite close proximity to numerous anthropogenic stressors and subjection to frequent natural disturbance events. Limited information has been published concerning the distribution and abundance of A. cervicornis outside of these known dense patches. The first goal of this study was to conduct a spatially extensive and inclusive survey (9.78 km(2)) to determine whether A. cervicornis distribution in the nearshore habitat of SE FL was spatially uniform or clustered...
2016: PeerJ
Tone Bjørge, Mika Gissler, Anne Gulbech Ording, Anders Engeland, Ingrid Glimelius, Maarit Leinonen, Henrik Toft Sørensen, Steinar Tretli, Anders Ekbom, Rebecca Troisi, Tom Grotmol
BACKGROUND: Data are conflicting regarding the role of endogenous sex hormones in colorectal carcinogenesis. In this large population-based study, we pooled data from birth and cancer registries in four Nordic countries, to evaluate the risk of colorectal adenocarcinoma in relation to women's reproductive history. METHODS: We conducted a population-based case-control study among women registered in Nordic birth registries. The study included colorectal adenocarcinoma cases diagnosed in Denmark, Finland, Norway, and Sweden during 1967-2013 and up to 10 matched controls per case, in total 22 185 cases and 220 246 controls...
October 4, 2016: British Journal of Cancer
Fengyuan Deng, James R W Ulcickas, Garth J Simpson
Fluorescence optical rotary dispersion (F-ORD) is proposed as a novel chiral-specific and interface-specific spectroscopic method. F-ORD measurements of uniaxial assemblies are predicted to be fully electric-dipole-allowed, with corresponding increases in sensitivity to chirality relative to chiral-specific measurements in isotropic assemblies that are commonly interpreted through coupling between electric and magnetic dynamic dipoles. Observations of strong chiral sensitivity in prior single-molecule fluorescence measurements of chiral interfacial molecules are in excellent qualitative agreement with the predictions of the F-ORD mechanism and challenging to otherwise explain...
October 13, 2016: Journal of Physical Chemistry Letters
Abhijit Pakhare, Yogesh Sabde, Ankur Joshi, Rashmi Jain, Arun Kokane, Rajnish Joshi
BACKGROUND & OBJECTIVES: Dengue epidemics have been linked to various climatic and environmental factors. Dengue cases are often found in clusters; identification of these clusters in early phase of epidemic can help in efficient control by implementing suitable public health interventions. In year 2014, Bhopal City in Madhya Pradesh, India witnessed an outbreak of dengue with 729 recorded cases. This study reports spatial and meteorological determinants and, demographic and clinical characteristics of the dengue outbreak in Bhopal City...
July 2016: Journal of Vector Borne Diseases
Mitzy Pepper, David G Hamilton, Thomas Merkling, Nina Svedin, Bori Cser, Renee A Catullo, Sarah R Pryke, J Scott Keogh
The spectacular threat display of the savannah specialist Australo-Papuan frilled lizards has made them one of the world's most iconic reptiles. They are increasingly used as a model system for research in evolutionary biology and ecology but little is known of their population structure. Their distribution across northern Australia and southern New Guinea also provides an opportunity to examine biogeographic patterns as they relate to the large-scale movement of savannah habitat during the Plio/Pleistocene and the associated increase in aridity...
September 21, 2016: Molecular Phylogenetics and Evolution
Kim J Fernie, Luis Cruz-Martinez, Lisa Peters, Vince Palace, Judit E G Smits
Research investigating the effects of air contaminants on biota has been limited to date. Captive adult female American kestrels (Falco sparverius) were exposed to a mixture of benzene (0.6 ppm), toluene (1 ppm), nitrogen dioxide (NO2; 2 ppm) and sulfur dioxide (SO2; 5.6 ppm), in a whole-body inhalation chamber. Thyroid axis responses to meet metabolic demands were examined through thyroid histology, plasma thyroxine (T4), and triiodothyronine (T3), and hepatic outer ring deiodination (T4-ORD). Plasma free (F) T3 and T4 were measured at baseline, and at 9 days and 18 days of exposure, whereas total (T) T3 and TT4, thyroid histology and hepatic T4-ORD were determined at the final 18 day exposure...
October 3, 2016: Environmental Science & Technology
Min-Hung Chen, Po-Yuan Chen, Ching-Hsing Luo
An adaptive integration method is proposed for computing cardiac action potential models accurately and efficiently. Time steps are adaptively chosen by solving a quadratic formula involving the first and second derivatives of the membrane action potential. To improve the numerical accuracy, we devise an extremum-locator (el) function to predict the local extremum when approaching the peak amplitude of the action potential. In addition, the time step restriction (tsr) technique is designed to limit the increase in time steps, and thus prevent the membrane potential from changing abruptly...
October 1, 2016: Computers in Biology and Medicine
Matthew Hansen, William Loker, Craig Warden
INTRODUCTION: The association between geographic factors, including transport distance, and pediatric emergency medical services (EMS) run clustering on out-of-hospital pediatric endotracheal intubation is unclear. The objective of this study was to determine if endotracheal intubation procedures are more likely to occur at greater distances from the hospital and near clusters of pediatric calls. METHODS: This was a retrospective observational study including all EMS runs for patients less than 18 years of age from 2008 to 2014 in a geographically large and diverse Oregon county that includes densely populated urban areas near Portland and remote rural areas...
September 2016: Western Journal of Emergency Medicine
Mobolaji Adeolu, Seema Alnajar, Sohail Naushad, Radhey S Gupta
Understanding of the phylogeny and interrelationships of the genera within the order "Enterobacteriales" has proven difficult using the 16S rRNA gene and other single-gene or limited multi-gene approaches. In this work, we have completed comprehensive comparative genomic analyses of the members of the order "Enterobacteriales" which includes phylogenetic reconstructions based on 1548 core proteins, 53 ribosomal proteins, 4 multilocus sequence analysis proteins, as well as examining the overall genome similarity amongst the members of this order...
September 11, 2016: International Journal of Systematic and Evolutionary Microbiology
Kasper Adelborg, Erzsébet Horváth-Puhó, Anne Ording, Lars Pedersen, Henrik Toft Sørensen, Victor W Henderson
AIMS: The association between heart failure and dementia remains unclear. We assessed the risk of dementia among patients with heart failure and members of a general population comparison cohort. METHODS AND RESULTS: Individual-level data from Danish medical registries were linked in this nationwide population-based cohort study comparing patients with a first-time hospitalization for heart failure between 1980 and 2012 and a year of birth-, sex-, and calendar year-matched comparison cohort from the general population...
September 9, 2016: European Journal of Heart Failure
S Orde, S J Huang, A S McLean
Echocardiography is developing rapidly. Speckle tracking echocardiography is the latest semi-automatic tool that has potential to quantitatively describe cardiac dysfunction that may be unrecognised by conventional echocardiography. It is a non-Doppler, angle-independent, feasible and reproducible method to evaluate myocardial function in both non-critically ill and critically ill populations. Increasingly it has become a standard measure of both left and right ventricle function in specific patient groups, e...
September 2016: Anaesthesia and Intensive Care
Fatemeh Abedi-Astaneh, Homa Hajjaran, Mohammad Reza Yaghoobi-Ershadi, Ahmad Ali Hanafi-Bojd, Mehdi Mohebali, Mohammad Reza Shirzadi, Yavar Rassi, Amir Ahmad Akhavan, Bagher Mahmoudi
INTRODUCTION: Cutaneous leishmaniasis (CL) is among the top 10 infectious disease priorities in the world, and the leading cause of morbidity in Iran. The present study was conducted to assess the risk of CL, and to determine some epidemiological features of the disease in endemic areas of Qom Province in Central Iran during 2009 to 2013. METHODS: Data regarding human cases of the disease were obtained from the Qom Province Health Center, prepared and stored in a spatial database created in ArcGIS10...
2016: PloS One
Takao Iino, Moriya Ohkuma, Yoichi Kamagata, Seigo Amachi
A chemo-organotrophic iodide (I-)-oxidizing bacterium strain C-3T isolated from natural gas brine of an iodine recovery facility in Kujukuri, Chiba, Japan, was characterized for representation of a novel species in the class Alphaproteobacteria. Phylogenetic analysis based on the 16S rRNA gene sequence revealed that nearest neighbours of strain C-3T were members of the genera Eilatimonas, Kordiimonas, Rhodothalassium and Temperatibacter with 88-91% sequence similarity. Cells of strain C-3T were aerobic, Gram-negative, non-sporulating and rod-shaped (1...
August 26, 2016: International Journal of Systematic and Evolutionary Microbiology
Ruschca Jacobs, Stephanus Malherbe, Andre G Loxton, Kim Stanley, Gian van der Spuy, Gerhard Walzl, Novel N Chegou
There is an urgent need for new tools for the rapid diagnosis of tuberculosis disease. We evaluated the potentials of 74 host markers as biomarkers for the immunological diagnosis of tuberculosis and monitoring of treatment response. Fifty-five individuals that presented with signs and symptoms requiring investigation for tuberculosis disease were prospectively recruited prior to clinical diagnosis, at a health centre in Cape Town, South Africa. Patients were later classified as having tuberculosis disease or other respiratory diseases (ORD) using a combination of clinical, radiological and laboratory findings...
August 19, 2016: Oncotarget
Jian-Ming He, Shi-Yue Zhang, Qing Mu
Counter-current Chromatography (CCC) has gradually become a popular method for preparative separation, especially in natural product isolation. As an effective separation method, one-dimensional (1D) CCC often results in insufficiently resolved peaks, due to limitations in the separation efficiency and peak capacity in an equipment. Therefore, two dimensional (2D)/multi-dimensional (multi-D) CCC strategies with recycling elution mode were developed to achieve successful separation of target compounds. However, the reported 2D or multi-D CCC approaches lead to experimental costs, complicated procedures, higher requirements for equipment, and increased time consumption...
September 16, 2016: Journal of Chromatography. A
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