bluuebunny/crossref_metadata_2025_split huggingface dataset:
Reactive extraction of L‐valine with di(2‐ethylhexyl) phosphate acid
Authors: Bai Huihua , Guo Kaixuan , Chen Xue , Chang Zhixian , Li Deliang 
Published: September 2016

AbstractBACKGROUNDReactive extraction is a promising technique for the recovery of amino acids from aqueous solutions. The reactive extraction of L‐valine with di(2‐ethylhexyl) phosphate acid (D2EHPA) has been studied in this work. An expression for the equilibrium distribution ratio (D) was proposed to describe the experimental data.RESULTSThe diluents, equilibrium pH value (pHeq), the concentration of L‐valine and D2EHPA were found to be the key factors that affected D. The highest D was observed at pHeq around 2.6 with 1‐octanol as diluent. D value increased with increase of the concentration of D2EHPA. In contrast, with increase of the concentration of L‐valine, D value decreased. The extraction mechanism was analyzed using Fourier infrared spectra. The reactive extraction mechanism of L‐valine with D2EHPA was mainly via proton‐transfer and ion‐exchange process. By fitting the experimental data, (1:1) complex of L‐valine with D2EHPA was deduced. The comparison of theoretical D values with the experimental data verified the reliability of the proposed mechanism equations.CONCLUSIONSL‐valine was efficiently extracted from aqueous solutions using D2EHPA in 1‐octanol, which provides preliminary practical information and theoretical basis for the separation of L‐valine, as well as its purification and recovery. © 2016 Society of Chemical Industry
Evaluating the potential of thermal read‐out techniques combined with molecularly imprinted polymers for the sensing of low‐weight organic molecules
Authors: van Grinsven B. , Betlem K. , Cleij T.J. , Banks C.E. , Peeters M. 
Published: September 2016

AbstractIn recent years, there has been a tremendous increase in the papers published on synthetic recognition elements. Molecularly imprinted polymers (MIPs), also referred to as “man‐made mimics” of antibodies, are able to rebind their template molecules with high affinity. Advantages compared with those of natural receptors include their excellent thermal and chemical stability, low cost, and ease of the production process. However, their use in commercial biosensors is limited owing to the difficulty to incorporate MIPs into suitable sensing platforms and traditional detection techniques, such as chromatography, that require bulky and sophisticated equipment. In this review, we evaluate the potential to use MIPs combined with thermal read‐out for the detection of low‐weight organic molecules. We discuss thermal methods to study MIP‐template complexation and to determine neurotransmitters concentrations. In particular, we highlight the heat‐transfer method, a recent technique that is straightforward and low cost and requires minimal instrumentation. Until now, sample preparation involves a 2‐step process, making it time‐consuming, and measuring biological samples is difficult owing to the noise in the signal. Different sample preparation methods are discussed, and it will be demonstrated how this affects the thermal response. An outlook is given in novel methods that can simplify and speed up sample preparation. Finally, we show a novel thermal technique, which is based on the analysis of transport of thermal waves rather than evaluating the fixed heat‐transfer resistance. Through applying the concept of thermal waves, signal‐noise ratio is significantly increased, which results in lower detection limits and has potential for the study of biological samples.
Asymmetric Polymer Particles with Anisotropic Curvatures by Annealing Polystyrene Microspheres on Poly(vinyl alcohol) Films
Authors: Tseng Hsiao‐Fan , Cheng Ming‐Hsiang , Jeng Kai‐Sheng , Li Jia‐Wei , Chen Jiun‐Tai 
Published: September 2016

Anisotropic polymer particles such as Janus particles have attracted significant attention in recent years because of their unique properties and unusual self‐assembly behavior. Most anisotropic polymer particles synthesized so far, however, only have different chemical regions compartmentalized on the particles. It remains a great challenge to fabricate anisotropic polymer particles with different shapes within a single particle. A novel approach is developed to prepare anisotropic polymer particles that contain two hemispheres with different curvatures by annealing polystyrene microspheres on poly(vinyl alcohol) films. During the annealing process, the polymer microspheres gradually sink into the polymer films and transform to asymmetric polymer particles, driven by the surface and interfacial tensions of the polymers. Selective removal techniques are also used to confirm the morphologies of the asymmetric particles.image
Mobile app for treatment of stress urinary incontinence: A randomized controlled trial
Authors: Asklund Ina , Nyström Emma , Sjöström Malin , Umefjord Göran , Stenlund Hans , Samuelsson Eva 
Published: September 2016

AimsTo evaluate the effect of a mobile app treatment for stress urinary incontinence (SUI) in women.MethodsRandomized controlled trial, conducted 2013‐2014 in Sweden. Community‐dwelling adult women with ≥1 SUI episode/week recruited through our website and randomized to app treatment (n = 62) or control group (postponed treatment, n = 61). One participant from each group was lost to follow‐up. Intervention was the mobile app Tät® with a treatment program focused on pelvic floor muscle training (PFMT), and information about SUI and lifestyle factors. Primary outcomes, 3 months after randomization: symptom severity (International Consultation on Incontinence Modular Questionnaire Urinary Incontinence Short Form [ICIQ‐UI SF]); and condition‐specific quality of life (ICIQ Lower Urinary Tract Symptoms Quality of Life [ICIQ‐LUTSqol]).ResultsOne hundred and twenty‐three women were included (mean age 44.7), with moderate/severe SUI (97.5%, 120/123), mean ICIQ‐UI SF score 11.1 (SD 2.8) and mean ICIQ‐LUTSqol score 34.4 (SD 6.1) at baseline. At follow‐up, the app group reported improvements in symptom severity (mean ICIQ‐UI SF score reduction: 3.9, 95% confidence interval 3.0‐4.7) and condition‐specific quality of life (mean ICIQ‐LUTSqol score reduction: 4.8, 3.4‐6.2) and the groups were significantly different (mean ICIQ‐UI SF score difference: −3.2, −4.3to −2.1; mean ICIQ‐LUTSqol score difference: −4.6, −7.8 to −1.4). In the app group, 98.4% (60/61) performed PFMT at follow‐up, and 41.0% (25/61) performed it daily.ConclusionsThe mobile app treatment was effective for women with SUI and yielded clinically relevant improvements. This app may increase access to first‐line treatment and adherence to PFMT.
Sex and Intimacy after Stroke
Authors: Kautz Donald D. , Van Horn Elizabeth R. 
Published: September 2016

Abstract

Problem:
The sequelae of a stroke can negatively affect sex and intimacy for survivors and their partners.

Purpose:
This clinical article offers practical evidence-based recommendations for nurses to use in advising couples who may be experiencing sexual problems due to decreased desire, erectile dysfunction, vaginal dryness, paraparesis, pain, spasticity, fatigue, aphasia, concrete thinking, emotional lability, shame, embarrassment, fear, depression, or neurogenic bladder.

Key Findings and Clinical Relevance:
Recent research and clinical articles show that intimacy and sexual concerns are often ignored by the rehabilitation team, yet research shows that couples want information to assist them to maintain their sexual relationships. Using the PLISSIT model to address sexual concerns, nurses can facilitate discussions to aid couples toward improved sexual function and quality of life.
Fe Oxides on Ag Surfaces: Structure and Reactivity
Authors: Shipilin M. , Lundgren E. , Gustafson J. , Zhang C. , Bertram F. , Nicklin C. , Heard C. J. , Grönbeck H. , Zhang F. , Choi J. , Mehar V. , Weaver J. F. , Merte L. R. 
Published: September 2016

AbstractOne layer thick iron oxide films are attractive from both applied and fundamental science perspectives. The structural and chemical properties of these systems can be tuned by changing the substrate, making them promising materials for heterogeneous catalysis. In the present work, we investigate the structure of FeO(111) monolayer films grown on Ag(100) and Ag(111) substrates by means of microscopy and diffraction techniques and compare it with the structure of FeO(111) grown on other substrates reported in literature. We also study the NO adsorption properties of FeO(111)/Ag(100) and FeO(111)/Ag(111) systems utilizing different spectroscopic techniques. We discuss similarities and differences in the data obtained from adsorption experiments and compare it with previous results for FeO(111)/Pt(111).
Utility of Diffusion-Weighted MRI to Detect Changes in Liver Diffusion in Benign and Malignant Distal Bile Duct Obstruction: The Influence of Choice of b-Values
Authors: Karan Belgin , Erbay Gurcan , Koc Zafer , Pourbagher Aysin , Yildirim Sedat , Agildere Ahmet Muhtesem 
Published: September 2016

Purpose The study sought to evaluate the potential of diffusion-weighted magnetic resonance imaging to detect changes in liver diffusion in benign and malignant distal bile duct obstruction and to investigate the effect of the choice of b-values on apparent diffusion coefficient (ADC). Methods Diffusion-weighted imaging was acquired with b-values of 200, 600, 800, and 1000 s/mm2. ADC values were obtained in 4 segments of the liver. The mean ADC values of 16 patients with malignant distal bile duct obstruction, 14 patients with benign distal bile duct obstruction, and a control group of 16 healthy patients were compared. Results Mean ADC values for 4 liver segments were lower in the malignant obstruction group than in the benign obstruction and control groups using b = 200 s/mm2 ( P < .05). Mean ADC values of the left lobe medial and lateral segments were lower in the malignant obstruction group than in the benign obstructive and control groups using b = 600 s/mm2 ( P < .05). Mean ADC values of the right lobe posterior segment were lower in the malignant and benign obstruction groups than in the control group using b = 1000 s/mm2 ( P < .05). Using b = 800 s/mm2, ADC values of all 4 liver segments in each group were not significantly different ( P > .05). There were no correlations between the ADC values of liver segments and liver function tests. Conclusion Measurement of ADC shows good potential for detecting changes in liver diffusion in patients with distal bile duct obstruction. Calculated ADC values were affected by the choice of b-values.
Early life diet containing prebiotics and bioactive whey protein fractions increased dendritic spine density of rat hippocampal neurons
Authors: Waworuntu Rosaline V. , Hanania Taleen , Boikess Steven R. , Rex Christopher S. , Berg Brian M. 
Published: September 2016

AbstractEarly life nutrition plays an important role in brain development. Emerging research in rodents, piglets and humans suggest that prebiotics, milk fat globule membrane and lactoferrin may each play unique roles in brain development and cognitive functions. However, knowledge of their combined impact is lacking. We show here that providing weanling rats with a diet containing milk fat globule membrane, lactoferrin and a polydextrose/galactooligosaccharide prebiotic blend led to a significant increase in total dendritic spine density in hippocampal dentate gyrus neurons. Region‐specific alterations in dendritic spine density and morphology could provide a mechanistic basis underlying broader cognitive benefits, but further research is required to demonstrate functional consequences of these observations.
A New Baby in the Bedroom: Frequency and Severity of Postpartum Sexual Concerns and Their Associations with Relationship Satisfaction in New Parent Couples
Authors: Schlagintweit Hera E. , Bailey Kristen , Rosen Natalie O. 
Published: September 2016

ABSTRACT

Introduction
New parents are faced with many novel stressors, including possible changes to their sexual relationships. Although postpartum sexual concerns appear to be pervasive in new parents, little is known about the severity of these concerns or how they relate to new mothers' and fathers' relationship satisfaction.

Aim
To describe the frequency and severity of postpartum sexual concerns and examine associations between frequency and severity of postpartum sexual concerns and relationship satisfaction in new-parent couples.

Methods
Participants were 239 new-parent couples of a healthy infant 3 to 12 months old. Both members of the parenting couple completed an online survey within 1 month of each other.

Main Outcome Measures
Frequency and severity of postpartum sexual concerns were assessed using a 20-item Likert-type questionnaire adapted from a previously validated measurement. Relationship satisfaction was assessed with the Couples Satisfaction Index.

Results
A wide range of postpartum sexuality concerns was highly prevalent and moderately distressing in new mothers and fathers alike. New fathers' greater severity of postpartum sexual concerns was associated with their own and new mothers' decreased relationship satisfaction, whereas new mothers' greater severity of postpartum sexual concerns was associated only with lower relationship satisfaction in new fathers. In addition, new mothers' greater frequency of postpartum sexual concerns was associated with their own and new fathers' lower relationship satisfaction, whereas new fathers' frequency of postpartum sexual concerns was unrelated to the couples' relationship satisfaction.

Conclusion
Postpartum sexual concerns are pervasive and moderately distressing in new parents. The increased frequency and severity of these concerns were associated with decreased relationship well-being in both members of the couple. New mothers might need more assistance adjusting to the number of sexual concerns that they are experiencing, whereas new fathers might need more help adjusting to distress related to sexual issues.
Posibles cambios de perspectiva en los estudios sobre remesas y espacios domésticos: el caso de los mayas yucatecos
Authors: Vidussi Carla 
Published: September 2016

Este artículo analiza la migración desde la perspectiva local sobre el espacio y la manera como se percibe y experimenta. A través de una reflexión sobre estudios en torno a las remesas, se abordará el tema de lacasa habitación como uno de los principales destinos del dinero que los emigrantes envían a sus comunidades. Analizando los conceptos de casa, propiedad y espacio doméstico entre los mayas yucatecos de laépoca colonial y contemporáneos —sin pretender sugerir la existencia de una unidad étnica a nivel diacrónico y regional— se evidenciará la importancia de la perspectiva local para entender las razones que llevana los emigrantes de Yucatán a invertir su dinero en la construcción de nuevos espacios domésticos en sus comunidades de origen.
El estudio del Islam en América Latina: trabajos académicos (1980-2010)
Authors: Rosemberg Fuentes Velvet 
Published: September 2016

En las dos últimas décadas han proliferado las investigaciones sobre el islam en América Latina, aunque de una manera todavía muy general. Las publicaciones aún son dispersas, toda vez que la gran mayoría son escritos cortos que se han presentado en distintos foros de corte académico sin amplia difusión; algunos más son artículos integrados a libros con temas muy generales, lo que ha dificultado su localización. Sinembargo, muchos de ellos han podido recuperarse a través de una búsqueda exhaustiva y puntual, cuyos resultados referiré de manera sistematizada en este espacio. La lectura y análisis de los materiales recopilados me ha permitido detectar y esbozar algunas líneas de investigación en las que clasificaré las distintas obras.
Insufficient evidence for vitamin E in Alzheimer's disease
Authors: Hermann Dirk M. 
Published: September 2016

AbstractVitamin E has recently been suggested to slow down the progression of Alzheimer's disease. Current evidence is based on three studies in patients with Alzheimer's disease and one study in patients with mild cognitive impairment which all together included only 1756 patients. Importantly, two of these studies were negative, and the two other studies had severe methodological weaknesses that preclude more definite interpretation. Based on the notion from patients suffering from cerebrovascular diseases that vitamin E may induce serious side effects (i.e., hemorhagic stroke), vitamin E cannot be recommended for use in Alzheimer's patients.
Pediatric acute gastroenteritis: understanding caregivers’ experiences and information needs
Authors: Albrecht Lauren , Hartling Lisa , Scott Shannon D. 
Published: September 2016

ABSTRACTObjectivesPediatric acute gastroenteritis (AGE) is a common condition with high health care utilization, persistent practice variation, and substantial family burden. An initial approach to resolve these issues is to understand the patient/caregiver experience of this illness. The objective of this study was to describe caregivers’ experiences of pediatric AGE and identify their information needs, preferences, and priorities.MethodsA qualitative, descriptive study was conducted. Caregivers of a child with AGE were recruited for this study in the pediatric emergency department (ED) at a tertiary hospital in a major urban centre. Individual interviews were conducted (n=15), and a thematic analysis of interview transcripts was completed using a hybrid inductive/deductive approach.ResultsFive major themes were identified and described: 1) caregiver management strategies; 2) reasons for going to the ED; 3) treatment and management of AGE in the ED; 4) caregivers’ information needs; and 5) additional factors influencing caregivers’ experiences and decision-making. A number of subthemes within each major theme were identified and described.ConclusionsThis qualitative descriptive study has identified caregiver information needs, preferences, and priorities regarding pediatric AGE. This study also identified inconsistencies in the treatment and management of pediatric AGE at home and in the ED that influence health care utilization and patient outcomes related to pediatric AGE.
Ondansetron for pediatric concussion; a pilot study for a randomized controlled trial
Authors: Gravel Jocelyn , Carrière Benoit , D’Angelo Antonio , Crevier Louis , Beauchamp Miriam H. , Mâsse Benoît 
Published: September 2016

AbstractObjectivesAssess the feasibility of a study evaluating one dose of oral ondansetron to decrease post-concussion symptoms at one week and one month following concussion in children aged 8 to 17 years old.MethodThis was a pilot study for a randomized, triple-blind controlled trial of one dose of either ondansetron or placebo performed in a tertiary care pediatric emergency department. Participants were children aged 8 to 17 years who sustained a concussion in the previous 24 hours and visited a single emergency department. The outcome of interest was an increase from pre-concussion baseline of at least 3 symptoms from the Post-Concussion Symptom Inventory, measured at one week and at one month following concussion. The primary outcome was to determine the proportion of children who completed the assessment at one week following the intervention. Secondary outcome was the proportion of children who completed the assessment at one month following the intervention. All children, care givers, and those assessing the outcomes were blinded to the group assignment.ResultsOf the 218 children presenting with a concussion during the study period, we screened 108 and found 36/108 (33%) eligible to participate and 16/108 (14.8%) agreed to participate. All enrolled patients were compliant with the intervention and follow-up.ConclusionIn our study population, approximately one-third of the screened concussion patients were eligible to participate and approximately one half of those eligible agreed to participate. Our study found that most enrolled patients preferred electronic follow-up; the noncompliance rate was minimal.
Surface elevation changes during 2007–13 on Bowdoin and Tugto Glaciers, northwestern Greenland
Authors: TSUTAKI SHUN , SUGIYAMA SHIN , SAKAKIBARA DAIKI , SAWAGAKI TAKANOBU 
Published: September 2016

ABSTRACTTo quantify recent thinning of marine-terminating outlet glaciers in northwestern Greenland, we carried out field and satellite observations near the terminus of Bowdoin Glacier. These data were used to compute the change in surface elevation from 2007 to 2013 and this rate of thinning was then compared with that of the adjacent land-terminating Tugto Glacier. Comparing DEMs of 2007 and 2010 shows that Bowdoin Glacier is thinning more rapidly (4.1 ± 0.3 m a−1) than Tugto Glacier (2.8 ± 0.3 m a−1). The observed negative surface mass-balance accounts for <40% of the elevation change of Bowdoin Glacier, meaning that the thinning of Bowdoin Glacier cannot be attributable to surface melting alone. The ice speed of Bowdoin Glacier increases down-glacier, reaching 457 m a−1 near the calving front. This flow regime causes longitudinal stretching and vertical compression at a rate of −0.04 a−1. It is likely that this dynamically-controlled thinning has been enhanced by the acceleration of the glacier since 2000. Our measurements indicate that ice dynamics indeed play a predominant role in the rapid thinning of Bowdoin Glacier.
A Highly Precise Chronology for the Process of Neolithization in Southern Scandinavia: The ESS Project in Lund, Sweden
Authors: Schulz Paulsson Bettina , Andersson Magnus , Artursson Magnus , Brink Kristian 
Published: September 2016

AbstractIn 2013, one of Sweden’s largest archaeological excavations started in association with the building of the European Spallation Source (ESS) multidisciplinary research center in Lund. The 160 radiocarbon dates that were produced for the project represent the most exhaustive dating program for a Scandinavian site so far and provide evidence for the human impact and activities on the site from the Mesolithic to the Iron Age. This article presents the results within a Bayesian statistical framework for the 70 14C dates from the Early Neolithic settlement (object 1) and a burial site with dolmens and wooden façades. For the first time, a highly precise chronology provides deeper insight into the Neolithization processes and the early settlement strategies in southern Scandinavia from ~3800 cal BC onwards.