7,455 research outputs found
Determinants of the Closing Probability of Residential Mortgage Applications
After allowing applicants to "lock" the interest rate, mortgage originators are concerned with protecting themselves from adverse outcomes due to interest-rate changes. One may expect applicants would strive to close applications when rates rose, while letting themselves fall out when rates decline. Our results show that applicant response to interest-rate changes and volatility are modest. The most important predictor of closing probability is the length of the lock period, with shorter locks being more likely to close. Applications for single-family are more likely to close than are those for multiunit dwellings. Applications for owner-occupied properties are more likely to close than are those for investment properties. Applicant characteristics such as loan affordability, education and age have a small influence on closing rate. Gender has an effect for some loan programs, and marital status appears to be irrelevant. Discount points affect refinance mortgages more than purchase mortgages. Conventional applications are more likely to close than FHA and VA, and applications for refinance, in general, are less likely to close. Results are mixed for ARM and fifteen-year applications, as well as for whether it was the original application, or a relock.
The Influence of Race in Residential Mortgage Closings
This study examines how applicants identified as Asian, Black or Hispanic differ in mortgage closing outcomes compared to the remaining applicants. First, the findings show that minority applicants are somewhat less likely to close a loan for purchase, but equally likely to close a loan for refinance. A more important question this study addresses is whether minority borrowers have less efficient closing outcomes. The findings show no statistical difference between minority and non-minority applicants. This indicates that originators do not demonstrate a ‘‘taste for discrimination’’ by basing their loan approval for minorities on whether the loan can be profitably sold.
Real Estate Agent Remarks: Help or Hype?
This article groups the remarks of a multiple listing service listing into common themes and then uses a hedonic pricing model to determine whether such comments are priced in a meaningful way. The comments provide information on the motivation of the seller, location of the property and physical improvements or defects. Most of the comments analyzed are statistically significant. Negative comments are associated with lower sales prices suggesting the helpful nature of comments. Some of the positive comments, however, including "new paint" and "good location" are also associated with lower sales prices suggesting that some comments may be better classified as hype.
Property Assessments and Information Asymmetry in Residential Real Estate
This paper presents a game theoretic model of property tax assessment that allows a tax appraiser to either choose a high or a low assessment. The owner either accepts or challenges this assessment. A ‘‘fixed effects’’ regression model is used to evaluate the differences in the assessed values of a sample of houses from Bexar County, Texas during 2000 and 2001. Where the owner of the house is identified as a state licensed property tax consultant, the assessed value, after adjusting for size, age, and other economic characteristics, ranged from a statistically robust 2.5% to 6.2% lower than neighboring houses.
The Attitudes and Beliefs About Manual Therapy Held By Patients Experiencing Low Back Pain: A Scoping Review
Background
Manual therapy (MT) is commonly used to manage low back pain (LBP) and involves a complex interaction between the practitioner and patient. Attitudes and beliefs about MT may play a role in the outcomes seen in patients experiencing LBP. However, knowledge of patients’ attitudes and beliefs regarding MT is currently limited.
Objective
To map the existing published literature on the attitudes and beliefs about MT in patients experiencing LBP.
Design
Scoping Review.
Method
A systematic search was conducted across the PubMed, CINAHL, PsycINFO and Scopus databases. Study selection involved screening 1) title and abstracts and 2) full text articles. Data was analyzed to provide a descriptive summary of the studies and to develop themes of patients’ attitudes and beliefs about MT.
Results
A total of 767 records were identified from the initial search strategy. Following study selection, 14 articles were included for data analysis. Five themes related to patients’ attitudes and beliefs about MT were developed from the existing literature. Attitudes and beliefs about MT are explored and measured inconsistently with only one validated tool available.
Conclusion
MT is believed to be a preferential and effective treatment with accepted levels of post-treatment soreness. This review indicated that patients believe that MT has a biomedical mechanism of action and is suitable for biomedical causes of LBP. Several gaps in the literature are present that require further investigation
Findings from a pilot randomised trial of an asthma internet self-management intervention (RAISIN)
<b>Objective </b>To evaluate the feasibility of a phase 3
randomised controlled trial (RCT) of a website (Living
Well with Asthma) to support self-management.<p></p>
<b>Design and setting</b> Phase 2, parallel group, RCT,
participants recruited from 20 general practices across
Glasgow, UK. Randomisation through automated voice
response, after baseline data collection, to website
access for minimum 12 weeks or usual care.<p></p>
<b>Participants </b>Adults (age≥16 years) with physician
diagnosed, symptomatic asthma (Asthma Control
Questionnaire (ACQ) score ≥1). People with unstable
asthma or other lung disease were excluded.<p></p>
<b>Intervention</b> Living Well with Asthma’ is a desktop/
laptop compatible interactive website designed with
input from asthma/ behaviour change specialists, and
adults with asthma. It aims to support optimal
medication management, promote use of action plans,
encourage attendance at asthma reviews and increase
physical activity.<p></p>
<b>Outcome measures</b> Primary outcomes were
recruitment/retention, website use, ACQ and mini-
Asthma Quality of Life Questionnaire (AQLQ).
Secondary outcomes included patient activation,
prescribing, adherence, spirometry, lung inflammation
and health service contacts after 12 weeks. Blinding
postrandomisation was not possible.<p></p>
<b>Results </b>Recruitment target met. 51 participants
randomised (25 intervention group). Age range
16–78 years; 75% female; 28% from most deprived
quintile. 45/51 (88%; 20 intervention group) followed
up. 19 (76% of the intervention group) used the
website, for a mean of 18 min (range 0–49). 17 went
beyond the 2 ‘core’ modules. Median number of logins
was 1 (IQR 1–2, range 0–7). No significant difference
in the prespecified primary efficacy measures of ACQ
scores (−0.36; 95% CI −0.96 to 0.23; p=0.225), and
mini-AQLQ scores (0.38; −0.13 to 0.89; p=0.136). No
adverse events.<p></p>
<b>Conclusions</b> Recruitment and retention confirmed
feasibility; trends to improved outcomes suggest use of
Living Well with Asthma may improve self-management
in adults with asthma and merits further development
followed by investigation in a phase 3 trial
Systemic restoration of UBA1 ameliorates disease in spinal muscular atrophy
Acknowledgments Blood biochemistry analysis and serum analysis were performed by the Easter Bush Pathology Department, University of Edinburgh. Animal husbandry was performed by Centre for Integrative Physiology bio-research restructure technical staff, University of Edinburgh. Assistance with intravenous injections was provided by Ian Coldicott (University of Sheffield) and Hannah Shorrock (University of Edinburgh). Human blood cDNA was a gift to GH from Kathy Evans, University of Edinburgh. Imaging was performed at the IMPACT imaging facility, University of Edinburgh, with technical assistance from Anisha Kubasik-Thayil. The authors would also like to thank Lyndsay Murray for technical discussions relating to qRT-PCR analysis. This work was supported by funding from the SMA Trust and the Anatomical Society (via grants to THG); the Euan MacDonald Centre for Motor Neurone Disease Research (via grants to THG and SHP); the Wellcome Trust (via grants to EJNG and THG); Muscular Dystrophy UK (via grants to THG and CGB); a Elphinstone Scholarship from the University of Aberdeen (to SHP); and The French Muscular Dystrophy Association (via grants to CM and JC).Peer reviewedPublisher PD
Use of whole-genus genome sequence data to develop a multilocus sequence typing tool that accurately identifies Yersinia isolates to the species and subspecies levels
The genus Yersinia is a large and diverse bacterial genus consisting of human-pathogenic species, a fish-pathogenic species, and a large number of environmental species. Recently, the phylogenetic and population structure of the entire genus was elucidated through the genome sequence data of 241 strains encompassing every known species in the genus. Here we report the mining of this enormous data set to create a multilocus sequence typing-based scheme that can identify Yersinia strains to the species level to a level of resolution equal to that for whole-genome sequencing. Our assay is designed to be able to accurately subtype the important human-pathogenic species Yersinia enterocolitica to whole-genome resolution levels. We also report the validation of the scheme on 386 strains from reference laboratory collections across Europe. We propose that the scheme is an important molecular typing system to allow accurate and reproducible identification of Yersinia isolates to the species level, a process often inconsistent in nonspecialist laboratories. Additionally, our assay is the most phylogenetically informative typing scheme available for Y. enterocolitica
Long-term determination of energetic electron precipitation into the atmosphere from AARDDVARK subionospheric VLF observations
We analyze observations of subionospherically propagating very low frequency (VLF) radio waves to determine outer radiation belt energetic electron precipitation (EEP) flux magnitudes. The radio wave receiver in Sodankylä, Finland (Sodankylä Geophysical Observatory) observes signals from the transmitter with call sign NAA (Cutler, Maine). The receiver is part of the Antarctic-Arctic Radiation-belt Dynamic Deposition VLF Atmospheric Research Konsortia (AARDDVARK). We use a near-continuous data set spanning November 2004 until December 2013 to determine the long time period EEP variations. We determine quiet day curves over the entire period and use these to identify propagation disturbances caused by EEP. Long Wave Propagation Code radio wave propagation modeling is used to estimate the precipitating electron flux magnitudes from the observed amplitude disturbances, allowing for solar cycle changes in the ambient D region and dynamic variations in the EEP energy spectra. Our method performs well during the summer months when the daylit ionosphere is most stable but fails during the winter. From the summer observations, we have obtained 693 days worth of hourly EEP flux magnitudes over the 2004–2013 period. These AARDDVARK-based fluxes agree well with independent satellite precipitation measurements during high-intensity events. However, our method of EEP detection is 10–50 times more sensitive to low flux levels than the satellite measurements. Our EEP variations also show good agreement with the variation in lower band chorus wave powers, providing some confidence that chorus is the primary driver for the outer belt precipitation we are monitoring
Quantitative analysis of regulatory flexibility under changing environmental conditions
The circadian clock controls 24-h rhythms in many biological processes, allowing appropriate timing of biological rhythms relative to dawn and dusk. Known clock circuits include multiple, interlocked feedback loops. Theory suggested that multiple loops contribute the flexibility for molecular rhythms to track multiple phases of the external cycle. Clear dawn- and dusk-tracking rhythms illustrate the flexibility of timing in Ipomoea nil. Molecular clock components in Arabidopsis thaliana showed complex, photoperiod-dependent regulation, which was analysed by comparison with three contrasting models. A simple, quantitative measure, Dusk Sensitivity, was introduced to compare the behaviour of clock models with varying loop complexity. Evening-expressed clock genes showed photoperiod-dependent dusk sensitivity, as predicted by the three-loop model, whereas the one- and two-loop models tracked dawn and dusk, respectively. Output genes for starch degradation achieved dusk-tracking expression through light regulation, rather than a dusk-tracking rhythm. Model analysis predicted which biochemical processes could be manipulated to extend dusk tracking. Our results reveal how an operating principle of biological regulators applies specifically to the plant circadian clock
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