bluuebunny/crossref_metadata_2025_split huggingface dataset:
An empirical model for the urban heat island intensity for a site in Manchester
Authors: Levermore Geoffrey J , Parkinson John B 
Published: July 2016

The urban heat island intensity is the difference in temperature between a site close to the centre of a city and a site close to but outside the city (the rural site). The urban heat island intensity varies continuously throughout the day and is strongly dependent on the weather conditions at the time. The most important weather parameters are the wind speed, the cloud cover and the solar radiation. We have developed an empirical model for the urban heat island intensity and applied it to a site near the centre of Manchester and a rural site at Rostherne, approximately 17 km away. Weather data from the Met Office station at Rostherne are available from the British Atmospheric Data Centre. Our model uses the measured wind speed, the measured cloud cover and the measured solar radiation from Rostherne. The parameters of the model are adjusted to give a best fit to the measured urban heat island intensity for the year 2014. The model is then used to predict the hourly urban heat island intensity for the first six months of 2015, obtaining good results especially as the values of the parameters are not changed throughout the year and the model does not make use of the temperatures at either site. The accuracy of the model is such that if used for a basic heating and cooling load calculations the accuracy of the annual demand is high. Practical applications: Many buildings that building services engineers and other building designers design are in urban or city centres. However, the weather data for their designs are based on near-rural weather data which do not include the urban heat island effect. This paper describes a method to ascertain the urban heat island effect in the centre of Manchester. A designer could apply this for Manchester and as an initial indication to other similar urban areas. This will allow the rural weather data to be adjusted on an hourly basis for the urban heat island effect throughout the year.
Exhaust ventilation performance in residential washrooms for bioaerosol particle removal after water closet flushing
Authors: Mui KW , Wong LT , Yu HC , Cheung CT , Li N 
Published: July 2016

Potential bioaerosol infection risk associated with toilet flushing has not been sufficiently addressed in the design of residential washroom exhaust system. This study evaluates the performance of exhaust ventilation for residential washrooms in terms of air change rate, washroom size, washroom geometry, and locations of door louver, exhaust and water closet. Three bioaerosol species namely Escherichia coli (ATCC 10536), Serratia marcescens (ATCC 6911), and Cladosporium cladosporioides (ATCC 16022) are included in the simulations. By shortening the distance between the locations of exhaust and emission source (i.e. water closet), the fractional counts of bioaerosol particles exhausted can be increased. An increased air change rate and a louvered door can also improve the exhaust ventilation performance, yet with a longer time to steady state. This study should provide a useful source of reference for washroom exhaust designers to minimize bioaerosol infection risk. Practical application: This paper shows for residential washroom with an exhaust fan installed, the ventilation performance can be improved by an increased air change rate, and by shortening the distance between the locations of exhaust and emission source.
Mitral valve repair using a semirigid ring: patient selection and early outcomes
Authors: Wan Song , Lee Alex PW , Attaran Saina , Yu Peter SY , Au Sylvia SW , Kwok Micky WT , Lau Rainbow WH , Wong Randolph HL , Wan Innes YP , Ng Siu-Keung , Underwood Malcolm J 
Published: July 2016

Background Commonly used complete mitral annuloplastic rings include saddle-shaped and semirigid rings, with no clear indication for either type. A semirigid ring may be preferred in patients whose native mitral saddle shape is well maintained. We present our experience of using semirigid rings for mitral valve repair. Methods We routinely measured the annular height-to-commissural width ratio by 3-dimensional transesophageal echocardiography prior to mitral repair. We generally chose a semirigid (Memo 3D) ring in patients whose annular height-to-commissural width ratio was normal (≥ 15%). The same semirigid ring with an additional chordal guiding system (Memo 3D ReChord) was selected for patients with anterior leaflet or bileaflet pathology. Over an 18-month period, 66 patients with severe degenerative ( n = 60) or functional ( n = 6) mitral regurgitation had Memo 3D ( n = 32) or Memo 3D ReChord ( n = 34) rings implanted. Results Postoperative 3-dimensional transesophageal echocardiography was completed in all patients (mean follow-up 7 ± 5 months). The majority of patients had no or mild residual mitral regurgitation; only two had moderate (2+) mitral regurgitation. There was no mortality at 30-days or on midterm follow-up. Conclusions Our series represents the first Asian clinical experience using the Memo 3D ReChord ring. Although the long-term durability of mitral repair with this type of semirigid annuloplastic ring warrants further validation, our current clinical data are encouraging.
The impact of a focused vascular lower limb arterial duplex (F-VLAD) scan in management decisions for acute limb ischaemia
Authors: Normahani Pasha , Aslam Mohammed , Standfield Nigel J , Jaffer Usman 
Published: July 2016

Objective: To establish the diagnostic accuracy of a ‘focused vascular lower limb arterial duplex scan (F-VLAD)’ developed to facilitate rapid decision-making for acute limb ischaemia (ALI). Methods: Ten cases of ALI were identified from our patient database; clinical details, history and examination findings were extracted from the clinical notes. Original ‘full’ duplex ultrasound (DUS) pictorial reports were ‘re-formatted’ to include only anatomical segments included in the ‘F-VLAD’ scan. The series of 10 reports were emailed to 1741 vascular surgeons. Each recipient received a random mixture of full and F-VLAD scans. Participants were asked regarding next step in management and confidence in decision-making (Likert scale; 1 strongly disagree, 5 strongly agree). The cases were again sent out to the same database and respondents were asked as to the cause of ischaemia (embolic or thrombosis). Results: Eighty-one participants responded to the first survey and 43 participants to the second survey. Participants felt more confident making decisions regarding management using the full duplex report compared to the F-VLAD report (4 (3-4) vs 3 (2-4), median (IQR); p<0.001). However, there was no significant difference in diagnostic accuracy (differentiating embolus from thrombosis) when comparing the F-VLAD and full DUS reports (85.4% vs 88.3%; p=0.461). F-VLAD and ‘full’ DUS reports had comparable sensitivity (85.1% vs 86.8%), specificity (85.6% vs 89.2%),positive predictive value (PPV) (80.4% vs 81.9%) and negative predictive value (NPV) (89.2% vs 92.2%), respectively. Conclusion: The F-VLAD scan has comparable accuracy to a traditional full DUS in diagnosing the underlying aetiology of ALI. This may facilitate surgeon-performed point-of-care DUS.
Del Nido cardioplegia in low risk adults undergoing first time coronary artery bypass surgery
Authors: Guajardo Salinas Gustavo E. , Nutt Roger , Rodriguez-Araujo Gerardo 
Published: July 2016

Objectives: Single-dose del Nido cardioplegia has been used in the pediatric population for many years. Only a small amount of data exists about its use in adult cardiac surgery. We sought to compare the outcomes of all patients undergoing coronary artery bypass, using our 4:1 blood cardioplegia versus single-dose 1:4 del Nido cardioplegia, at our institution. Methods: Data were retrospectively reviewed from all patients during 2 consecutive years (2013-2014). We switched our cardioplegia protocol from 4:1 blood cardioplegia to exclusively 1:4 single-dose del Nido cardioplegia in early 2014. A total of 408 patients were evaluated. Two hundred and forty-nine consecutive patients underwent coronary artery bypass using blood cardioplegia and 159 using del Nido Cardioplegia. Results: Cardiopulmonary bypass time, cross-clamp time, in-hospital mortality and length of stay were similar (p>0.05): 63 ± 23 vs. 65 ± 21 min, 50 ± 20 vs. 52 ± 20 min, 0.8% vs. 0.6% and 6.4 ± 3 vs. 5.8 ± 3 days, respectively. For secondary outcomes: patients requiring defibrillation was 105/249 (42%) vs. 13/159 (8%) (p<0.0001), blood transfusion was required in 96/249 (38%) vs. 48/159 (30%) (p<0.085), total volume administered was 1139mL vs. 813 mL per case (p<0.0001), hematocrit change was 11.6% vs. 10.9% (p<0.04) and the mean cost per dose was $157.54 vs $5.74. Conclusions: Single-dose del Nido cardioplegia is an effective and economic cardioplegia and can be used with good outcomes in coronary surgery. Most patients have spontaneous return of sinus rhythm and there is a trend towards decreased transfusion rate.
Awareness and Perception of Strabismus Among the Youths And Women of Child-Bearing Age in a Local Government in South Western Nigeria
Authors: Bodunde Olubunmi , Runsewe-Abiodun Tamramat , Alabi Adekunle , Adetunji Janet , Olowonyo Michael , Adefuye Bolanle 
Published: July 2016

Purpose To determine the level of awareness, attitudes, and perceptions of strabismus among youth and women of child-bearing age in southwestern Nigeria. Methodology Fifteen Focus Group Discussions were carried out in Ogun State Nigeria on awareness, attitudes, and perceptions of people toward strabismus. A thematic phenomenological approach was used for the analysis. Results A total of 139 people participated in the Focus Group Discussions, with a male:female ratio of 1:∼4. Although there was a fairly high level of awareness of strabismus in the populace, their attitudes and perceptions of the disease were poor, based on unfounded fears and misconceptions of the disease. Conclusions We conclude that the negative perception and acceptance of people with strabismus by the people in southwestern Nigeria is based on poor knowledge of the disease. As a result, the stigma attached to the condition appears to interfere with accessing health-care services for treatment.
Occupational therapists in community mental health teams for older people in England: Findings from a five-year research programme
Authors: Abendstern Michele , Tucker Sue , Wilberforce Mark , Jasper Rowan , Challis David 
Published: July 2016

Introduction This English study is the first to focus on the contribution of occupational therapists to the work of community mental health teams for older people. Method A mixed methods study comprising: a national survey of community mental health team managers; caseload audit; qualitative interviews; and a practitioner survey provided information on team membership and functions, user characteristics, accounts of occupational therapists’ roles and experiences, and work characteristics. Findings Occupational therapists worked mainly with people with dementia and were involved in both generic and specialist tasks, with the latter focusing largely on maintaining functionality. They had found ways to balance their roles for the benefit of the team without loss of professional identity. Some differences of opinion between clinical leads and occupational therapists were reported. Stress levels among occupational therapists were similar to those of professional colleagues. Conclusion Some findings contrast with earlier studies of community mental health teams for working-age adults, offering new insights into the nature of the occupational therapists’ experiences. To ensure that occupational therapists in these settings are able to contribute effectively, a shared understanding of their role is required between them and their clinical leads.
The role of methysergide in migraine and cluster headache treatment worldwide – A survey in members of the International Headache Society
Authors: MacGregor E Anne , Evers Stefan ,   on behalf of the International Headache Society
Published: July 2016

Background Methysergide has been as an effective treatment for migraine and cluster headache for over 50 years but has recently been investigated by the European Medicines Agency due to safety concerns. Methods To assess the need for continuing availability of methysergide, the International Headache Society performed an electronic survey among their members. Results The survey revealed that 71.3% of all respondents had ever prescribed methysergide and 79.8% would prescribe it if it were to become available. Respondents used it more in cluster headache than migraine, and reserved it for use in refractory patients. Conclusion The vast majority of headache experts in this survey regarded methysergide a unique treatment option for specific populations for which there are no alternatives, with an urgent need to continue its availability. This position was supported by the International Headache Society.
The Extent, Nature and Distribution of Child Poverty in India
Authors: Gordon David , Nandy Shailen 
Published: July 2016

Despite a long history, research on poverty has only relatively recently examined the issue of child poverty as a distinct topic of concern. This article examines how child poverty and well-being are now conceptualized, defined and measured, and presents a portrait of child poverty in India by social and cultural groups, and by geographic area. In December 2006, the UN General Assembly adopted a definition of child poverty which noted that children living in poverty were deprived of (among other things) nutrition, water and sanitation facilities, access to basic health care services, shelter and education. The definition noted that while poverty hurts every human being ‘it is most threatening and harmful to children, leaving them unable to enjoy their rights, to reach their full potential and to participate as full members of the society’. Researchers have developed age-specific and gender-sensitive indicators of deprivation which conform to the UN definition of child poverty and which can be used to examine the extent and nature of child poverty in low and middle-income countries. These new methods have ‘transformed the way UNICEF and many of its partners both understood and measured the poverty suffered by children’ (UNICEF, 2009). This article uses these methods and presents results of child poverty in India based on nationally representative household survey data for India.
Risk Factors for Hospitalization of Home Hospice Enrollees Development and Validation of a Predictive Tool
Authors: Phongtankuel Veerawat , Johnson P. , Reid M. C. , Adelman R. D. , Grinspan Z. , Unruh M. A. , Abramson E. 
Published: July 2016

Background: Over 10% of hospice patients experience at least 1 care transition 6 months prior to death. Transitions at the end of life, particularly from hospice to hospital, result in burdensome and fragmented care for patients and families. Little is known about factors that predict hospitalization in this population. Objectives: To develop and validate a model predictive of hospitalization after enrollment into home hospice using prehospice admission risk factors. Design: Retrospective cohort study using Medicare fee-for-service claims. Participants: Patients enrolled into the Medicare hospice benefit were ≥18 years old in 2012. Outcome Measured: Hospitalization within 2 days from a hospice discharge. Results: We developed a predictive model using 61 947 hospice enrollments, of which 3347 (5.4%) underwent a hospitalization. Seven variables were associated with hospitalization: age 18 to 55 years old (adjusted odds ratio [95% confidence interval]: 2.94 [2.41-3.59]), black race (2.13 [1.93-2.34]), east region (1.97 [1.73-2.24]), a noncancer diagnosis (1.32 [1.21-1.45]), 4 or more chronic conditions (8.11 [7.19-9.14]), 2 or more prior hospice enrollments (1.75 [1.35-2.26]), and enrollment in a not-for-profit hospice (2.01 [1.86-2.18]). A risk scoring tool ranging from 0 to 29 was developed, and a cutoff score of 18 identified hospitalized patients with a positive predictive value of 22%. Conclusions: Reasons for hospitalization among home hospice patients are complex. Patients who are younger, belong to a minority group, and have a greater number of chronic conditions are at increased odds of hospitalization. Our newly developed predictive tool identifies patients at risk for hospitalization and can serve as a benchmark for future model development.
Quality of life in patients receiving telemedicine enhanced chronic heart failure disease management: A meta-analysis
Authors: Knox Liam , Rahman Rachel J , Beedie Chris 
Published: July 2016

Background Previous reviews have investigated the effectiveness of telemedicine in the treatment of heart failure (HF). Dependent variables have included hospitalisations, mortality rates, disease knowledge and health costs. Few reviews, however, have examined the variable of health-related quality of life (QoL). Methods Randomised controlled trials comparing the delivery methods of any form of telemedicine with usual care for the provision of HF disease-management were identified via searches of all relevant databases and reference lists. Studies had to report a quantitative measure for mental, physical or overall QoL in order to be included. Results A total of 33 studies were identified. However, poor reporting of data resulted in the exclusion of seven, leaving 26 studies with 7066 participants. Three separate, random effects meta-analyses were conducted for mental, physical and overall QoL. Telemedicine was not significantly more effective than usual care on mental and physical QoL (standardised mean difference (SMD) 0.03, (95% confidence interval (CI) −0.05–0.12), p = 0.45 and SMD 0.24, (95% CI −0.08–0.56), p = 0.14, respectively). However, when compared to usual care, telemedicine was associated with a small significant increase in overall QoL (SMD 0.23, (95% CI 0.09–0.37), p = 0.001). Moderator analyses indicated that telemedicine delivered over a long-duration (≥52 weeks) and via telemonitoring was most beneficial. Conclusion Compared to usual care, telemedicine significantly increases overall QoL in patients receiving HF disease management. Statistically non-significant but nonetheless positive trends were also observed for physical QoL. These findings provide preliminary support for the use of telemedicine in the management of heart failure without jeopardising patient well-being.
Spanish heritage speakers in the Netherlands: Linguistic patterns in the judgment and production of mood
Authors: van Osch Brechje , Sleeman Petra 
Published: July 2016

Purpose: This study investigates heritage speakers of Spanish in the Netherlands regarding their knowledge of Spanish mood. Previous research has demonstrated that heritage speakers of Spanish in the US have problems with mood, especially subjunctive mood and particularly in contexts where choice of mood is variable and depends on semantic and pragmatic factors. Moreover, heritage speakers are often reported to experience fewer problems with oral production tasks tapping into implicit knowledge than with judgment tasks targeting metalinguistic knowledge. This study aims to investigate whether these patterns can be confirmed for heritage speakers of Spanish in the Netherlands. Methodology: In all, 17 heritage speakers from the Netherlands and 18 monolingual speakers of Spanish completed a contextualized elicited production task. Each item contained a context targeting either indicative or subjunctive mood. Below each context followed the beginning of a sentence which the participants were instructed to complete. Both obligatory and variable uses of mood were included. The results were compared to findings from a contextualized scalar acceptability judgment task described in an earlier study using the same conditions and the same participants. Data and analysis: All responses were coded as felicitous or infelicitous given the accompanying context and were analyzed using mixed effects modeling. The results demonstrate that the heritage speakers are less accurate in their choice of mood than monolingual speakers, particularly on subjunctive mood and in variable contexts. Furthermore, heritage speakers deviated more from the monolingual patterns in the production task than in the judgment task. Findings/conclusion: These results confirm several patterns attested for heritage speakers of Spanish in the US, namely the increased vulnerability of subjunctive mood and in contexts where mood is not obligatorily selected. However, in contrast to previous literature, this study reports better performance on a metalinguistic judgment task than on an oral production task. This finding is attributed to differences in societal circumstances between both heritage speaker populations. Implications of the research: This study confirms the heterogeneity of heritage speakers as a population and emphasizes the importance of taking societal circumstances into consideration.
Radiocarpal Injuries: Cone Beam Computed Tomography Arthrography, Magnetic Resonance Arthrography, and Arthroscopic Correlation among 21 Patients
Authors: Suojärvi N. , Haapamäki V. , Lindfors N. , Koskinen S. K. 
Published: July 2016

Background and Aims: Patients with acute or chronic wrist pain often undergo wrist arthroscopy for evaluation of chondral and ligamentous abnormalities. The purpose of this study was to compare findings of wrist arthroscopy with cone beam computed tomography arthrography and magnetic resonance arthrography. Materials and Methods: Altogether, 21 patients with wrist pain underwent cone beam computed tomography arthrography, magnetic resonance arthrography, and wrist arthroscopy. Chondral surfaces of the scaphoid, lunate, and radius facing the scaphoid and lunate were evaluated. The scapholunate ligament, the lunotriquetral ligament, and the triangular fibrocartilage complex were classified as either intact or torn. Sensitivity, specificity, positive and negative predictive values, and accuracy with 95% confidence intervals were assessed. Results: For chondral lesions (n = 10), cone beam computed tomography arthrograms showed slightly higher specificity than magnetic resonance arthrography. The sensitivity of cone beam computed tomography arthrography was also better for these lesions, except for those on the chondral surface of the lunate. For triangular fibrocartilage complex injuries (n = 9), cone beam computed tomography arthrography showed a better specificity and sensitivity than magnetic resonance arthrography. For ligamentous injuries (n = 6), cone beam computed tomography arthrograms were more sensitive, but less specific than magnetic resonance arthrography images. However, the number of lesions was very small and the 95% confidence intervals are overlapping. Conclusion: Cone beam computed tomography is an emerging imaging modality that offers several advantages over computed tomography and magnetic resonance imaging. Its usefulness particularly in ligamentous injuries should be further explored in a larger study. Cone beam computed tomography arthrography seems to offer similar sensitivity, specificity, and accuracy compared to magnetic resonance arthrography and therefore serves as a valuable option in evaluating patients with wrist pain.