bluuebunny/crossref_metadata_2025_split huggingface dataset:
Echolocation call production during aerial and terrestrial locomotion by New Zealand's enigmatic lesser short-tailed bat,Mystacina tuberculata
Authors: Parsons Stuart , Riskin Daniel K. , Hermanson John W. 
Published: January 2010

SUMMARYLinkage of echolocation call production with contraction of flight muscles has been suggested to reduce the energetic cost of flight with echolocation, such that the overall cost is approximately equal to that of flight alone. However, the pattern of call production with limb movement in terrestrially agile bats has never been investigated. We used synchronised high-speed video and audio recordings to determine patterns of association between echolocation call production and limb motion by Mystacina tuberculata Gray 1843 as individuals walked and flew, respectively. Results showed that there was no apparent linkage between call production and limb motion when bats walked. When in flight, two calls were produced per wingbeat, late in the downstroke and early in the upstroke. When bats walked, calls were produced at a higher rate, but at a slightly lower intensity, compared with bats in flight. These results suggest that M. tuberculata do not attempt to reduce the cost of terrestrial locomotion and call production through biomechanical linkage. They also suggest that the pattern of linkage seen when bats are in flight is not universal and that energetic savings cannot necessarily be explained by contraction of muscles associated with the downstroke alone.
Sclerotherapy: a study comparing polidocanol in foam and liquid form
Authors: Uncu H 
Published: January 2010

Objectives Compression sclerotherapy has been satisfactorily used for half a century for the treatment of varicose veins of the lower extremities. The effect of sclerosing solutions is that of making endofibrosis and vascular damage via producing endothelial injury. Different sclerosing agents were used by applying many different sclerotherapy methods. In recent years, sclerosing foam has been introduced in sclerotherapy with the goal of increasing the efficacy in the treatment of varicose veins. It is still uncertain whether foam or liquid form is superior. The aim of this study is to determine the efficacy and safety of the sclerosant polidocanol – which is a well-known detergent-type sclerosing agent – in foam form compared with liquid form. Methods A total of 100 women patients with telengiectases and small varicose veins of less than 4 mm were included in this study. The patients were divided into two groups according to presenting dates. Fifty patients who presented first were classified as the first group. They were treated with Tessari's foam sclerotherapy method. The second fifty patients who presented later were placed in the second group. They were treated with the liquid form of polidocanol. Extremity veins that did not have insufficiency at the saphenofemoral junction were divided into three groups as <1 mm, 1–2 mm and >2 but <4 mm, and the veins were treated with 0.25%, 0.5% or 1% of polidocanol, respectively. Clinical improvement, patients' complaints and side-effects were determined after treatment. Results Complete disappearance was determined in 84% of patients in the foam form group and in 72% in the liquid form group. Although polidocanol in foam form's success rate was higher than the liquid form of polidocanol to clear the vessels, this result did not reach statistical significance ( P = 0.148). There was no significant difference also in the side effects between each group. Conclusion Compression sclerotherapy is an effective and useful method for treating small varicose veins and telengiectases. Both polidocanol foam and polidocanol liquid forms are effective and safe sclerosing agents. The rates of side-effects were similar for both sclerotherapy methods. Although efficacy to clear the small varicose veins and telengiectases with foam polidocanol seems to be more successful than with liquid polidocanol, it is early to declare the superiority of the foam sclerotherapy method.
Seasonal variations in the onset and healing rates of venous leg ulcers
Authors: Simka M 
Published: January 2010

Objectives As many vascular pathologies exhibit circannual fluctuation, the aim of this study was to assess the chronobiological features of venous ulcers. Methods Based on a retrospective survey of the case histories of 391 venous ulcer patients, the rates of ulcer onset and healing in each month were analysed statistically; a time series was constructed to evaluate the seasonality. Results There was a significantly higher frequency of ulcer onset during the warmer part of the year (April–October), and onset showed strong seasonality. Healing rates were also unequally and statistically significantly distributed throughout the year: ulcers that appeared or that were treated with specialized treatment in the winter or summer healed slower in comparison to ulcers that began in the spring or autumn. Conclusions Venous ulcers exhibit circannual fluctuations in their onset and healing rates. Hypothetically, in addition to exacerbation of chronic venous insufficiency, seasonal variations in immune system activity might potentially be responsible for this phenomenon.
Shedding light: laser physics and mechanism of action
Authors: De Felice E 
Published: January 2010

Lasers have affected health care in many ways. Clinical applications have been found in a number of medical and surgical specialities. In particular, applications of laser technology in phlebology has made it essential for vein physicians to obtain a fundamental knowledge of laser physics, laser operation and also to be well versed in laser safety procedures. This article reviews recommended text books and current literature to detail the basics of laser physics and its application to venous disease. Laser safety and laser side effects are also discussed.
The role of perforators in chronic venous insufficiency
Authors: O'Donnell T F 
Published: January 2010

Thesis Venous ulcers (VU) consume considerable resources in healthcare systems, up to 1% of healthcare budgets in industrialized countries. Best practice guidelines (GLs) incorporate evidence-based diagnostic and therapeutic recommendations in a cost-effective manner and have been associated with improved and less costly outcomes for many diseases. Objectives To determine whether there are common elements in GLs for VU and their evidentiary strength. Methods A systematic analysis of GLs for VU that were identified through clinicaltrials.gov, a government-sponsored website, and from experts outside the USA. Results Ten of 12 GLs on VU (7 North America and 5 Europe) were evidence-based, with the majority using the GRADE method. Only two had been developed or updated within the last three years. Venous duplex and ankle ABIs were recommended in all. Debridement was suggested in two, while simple non-adherent wound dressings were favoured in nine, and hydrocolloid in two. Only one GL discussed a range of dressing options, dependent on the condition of the VU. High pressure multi-layer compression bandages were favoured in 10. Only two focused on the importance of improving ankle joint mobility. Conclusions While there are numerous evidence-based GLs for VU, the majority may lag recent developments in the field. There is consensus on the elements for dressings and compression among the various GLs, which should facilitate the development of a common consensus GL, similar to that for DVT/PE. To improve patient care and reduce wasted resources, it is imperative for specialty societies to develop this consensus document.
Using Personal Strengths with Intention in Pharmacy: Implications for Pharmacists, Managers, and Leaders
Authors: Traynor Andrew P , Janke Kristin K , Sorensen Todd D 
Published: January 2010

Background: The importance of allowing individuals to use their strengths in a work environment has been articulated through research focused on general audiences as well as by thought leaders within pharmacy. In particular, the work of Gallup has described how organizations that foster an environment in which employees frequently use their strengths achieve increased productivity, customer and employee satisfaction, and improved success at meeting goals. Despite acknowledging the importance of such an environment, little has been articulated in the pharmacy literature regarding how pharmacists can identify and apply their unique strengths within their profession. Objective: To provide an overview of the concept of individual strengths, the value of utilizing strengths in the profession, and the authors' experiences facilitating an awareness of this concept with student pharmacists, pharmacy residents, and pharmacists. Methods: Discovery and application of strengths has become a foundational theme in leadership development activities at the University of Minnesota College of Pharmacy. The learning process begins with building awareness and identifying individual talents using the Clifton StrengthsFinder Profile and reflecting on previous use of these talents. Throughout the activities, participants are encouraged to examine how professional experiences that correlate with their talents intersect and affect their knowledge and skills. Finally, participants are encouraged to utilize and maximize their talents in a team environment. Results: Experience has been gained delivering this educational process to 225 student pharmacists, 39 ambulatory care residents, and 22 practicing pharmacists. Participants have viewed this program favorably and articulated that utilization and growth of strengths is valuable to their career. Conclusions: In order to achieve our potential as a profession, it is critical to identify and apply the strengths that individual pharmacists bring to their practice settings. The identification, understanding, and application of strengths have the potential to increase professional satisfaction, enhance leadership, and empower change that will evolve patient-centered care.
Self‐harm in a mixed clinical population: The roles of self‐criticism, shame, and social rank
Authors: Gilbert Paul. , McEwan Kirsten. , Irons Chris. , Bhundia Rakhee. , Christie Rachael. , Broomhead Claire. , Rockliff Helen. 
Published: January 2010

Objectives.This study explored the relationship of forms and functions of self‐criticism, shame, and social rank variables to self‐harm, depression, and anxiety.Design.The study used a questionnaire design.Method.In‐patients and day‐patients (N= 73) completed a series of questionnaires measuring self‐harm, mood, self‐criticism, shame, and social comparison.Results.Self‐harm was significantly associated with forms and functions of self‐criticism, shame, and feelings of inferiority (low social rank). The self‐persecuting function of self‐criticism was especially linked to self‐harm, depression, and anxiety.Conclusions.This study adds to a growing literature on the importance of recognizing the pathogenic effects of negative self‐critical thoughts and feelings about the self and the value of distinguishing different types of self‐criticism.
The psychosocial context of depressive rumination: Ruminative brooding predicts diminished relationship satisfaction in individuals with a history of past major depression
Authors: Pearson Katherine A. , Watkins Edward R. , Kuyken Willem , Mullan Eugene G. 
Published: January 2010

Objective. To test the hypothesis that rumination contributes to poor social functioning by examining whether ruminative brooding predicts subsequent relationship satisfaction in individuals with a history of major depression.Method. Participants (N=57) were interviewed to assess depressive symptoms and completed self‐report measures of brooding and relationship satisfaction, at intake into the study (Time 1) and 3 months later (Time 2).Results. Brooding was related concurrently to relationship satisfaction at Time 2 (p<.01; approaching significance at Time 1, p=.06). Baseline brooding predicted diminished relationship satisfaction 3 months later, controlling for baseline relationship satisfaction (p<.05).Conclusions. Brooding may be an early warning sign for increasing relationship difficulties in those vulnerable to depression.
High-dose GH treatment limited to the prepubertal period in young children with idiopathic short stature does not increase adult height
Authors: van Gool S A , Kamp G A , Odink R J , de Muinck Keizer-Schrama S M P F , Delemarre-van de Waal H A , Oostdijk W , Wit J M 
Published: January 2010

ObjectiveTo assess the long-term effect of prepubertal high-dose GH treatment on growth in children with idiopathic short stature (ISS).Design and methodsForty children with no signs of puberty, age at start 4–8 years (girls) or 4–10 years (boys), height SDS <−2.0 SDS, and birth length >−2.0 SDS, were randomly allocated to receive GH at a dose of 2 mg/m2 per day (equivalent to 75 μg/kg per day at start and 64 μg/kg per day at stop) until the onset of puberty for at least 2 years (preceded by two 3-month periods of treatment with low or intermediate doses of GH separated by two washout periods of 3 months) or no treatment. In 28 cases, adult height (AH) was assessed at a mean (s.d.) age of 20.4 (2.3) years.ResultsGH-treated children (mean treatment period on high-dose GH 2.3 years (range 1.2–5.0 years)) showed an increased mean height SDS at discontinuation of the treatment compared with the controls (−1.3 (0.8) SDS versus −2.6 (0.8) SDS respectively). However, bone maturation was significantly accelerated in the GH-treated group compared with the controls (1.6 (0.4) versus 1.0 (0.2) years per year, respectively), and pubertal onset tended to advance. After an untreated interval of 3–12 years, AH was −2.1 (0.7) and −1.9 (0.6) in the GH-treated and control groups respectively. Age was a positive predictor of adult height gain.ConclusionHigh-dose GH treatment restricted to the prepubertal period in young ISS children augments height gain during treatment, but accelerates bone maturation, resulting in a similar adult height compared with the untreated controls.
Effect of Growth Conditions on Structural and Electrical Properties of Ga-doped ZnO Films Grown by Plasma-assisted MBE
Authors: Avrutin Vitaliy , Liu H.Y. , Izyumskaya Natalia , Reshchikov Michael A. , Özgür Ümit , Kvit A.V. , Voyles Paul , Morkoç Hadis 
Published: January 2010

AbstractZnO has recently attracted a great deal of attention as a material for transparent contacts in light emitters and adsorbers. ZnO films heavily doped with Ga (carrier concentration in the range of 1020 - 1021 cm-3) were grown on a-plane sapphire substrates by RF plasma-assisted molecular beam epitaxy. Oxygen pressure during growth (i.e. metal (Zn+Ga)–to–oxygen ratio) was found to have a crucial effect on structural, electrical, and optical properties of the ZnO:Ga films. As-grown layers prepared under metal-rich conditions exhibited resistivities below 3×10-4 Ω-cm and an optical transparency exceeding 90% in the visible spectral range. In contrast, the films grown under the oxygen-rich conditions required thermal activation and showed inferior structural, electrical, and optical characteristics even after annealing.
Optimising the Low Temperature Growth of Uniform ZnO Nanowires
Authors: Gabrielyan Nare , Paul Shashi , Cross Richard B.M 
Published: January 2010

AbstractZinc oxide (ZnO) nanowires have been widely investigated and various different methods of their synthesis have been suggested. This work is devoted to the optimisation of the growth conditions for uniform in terms of structure and evenly distributed ZnO nanowire arrays. The nanowire growth process includes two steps: 1. Radio-frequency (RF) magnetron sputtering of a ZnO nucleation layer onto a substrate; 2. A hydrothermal growth step of ZnO nanowires using the aforementioned sputtered layer as a template. The optimisation process was divided into two sets of experiments: (i) the deposition of different thicknesses of the ZnO nucleation layer and the subsequent nanowire growth step (using the same conditions) for each thickness. The results revealed a strong dependence of the nanowire size upon the seed layer thickness and structural properties; (ii) a second set of experiments were based on growth solution temperature variation for the nucleation layers of the same thicknesses. This also showed nanowire size and distribution change with solution temperature variation.
Materials Study of the Competing Group-V Element Incorporation Process in Dilute-Nitride Films
Authors: Sarney Wendy L. , Svensson Stefan P. 
Published: January 2010

AbstractThe incorporation of small amounts of N into III-V antimonide-containing semiconductor alloys allows a drastic expansion of available wavelengths for infrared (IR) detector applications. Quaternary films containing three group-V elements can be lattice matched to the most prevalent substrates for IR applications, such as InAs, GaAs, and GaSb. It is not trivial to incorporate N while maintaining the high crystalline quality required for IR devices. Current materials characterization studies of dilute-nitride films consisting of more than two group-V elements has yielded conflicting information related to their competing behavior and the extent of N incorporation. Due to challenges related to light-element microanalysis for many characterization techniques, and the small concentrations of N involved, it is difficult to quantify the amount of N incorporated into dilute-nitride films. In this study, we use transmission electron microscopy (TEM), energy-dispersive spectroscopy (EDS), and x-ray diffraction (XRD) to study the incorporation behaviors of the competing group-V elements in InAsSbN films.
Development of Milliwatt Power AlGaN-based Deep UV-LEDs by Plasma-assisted Molecular Beam Epitaxy
Authors: Liao Yitao , Thomidis Christos , Bhattacharyya Anirban , Kao Chen-kai , Moldawer Adam , Zhang Wei , Moustakas Theodore D. 
Published: January 2010

AbstractIn this paper, we report the development of AlGaN-based deep ultraviolet LEDs by rf plasma-assisted molecular beam epitaxy (MBE) emitting between 277 and 300 nm. Some of these devices were evaluated after fabrication at bare-die and some at wafer-level configurations. Devices with total optical output of 1.3 mW at injection current of 200 mA were produced, with maximum external quantum efficiency (EQE) of 0.16%. These performance values are equivalent to those reported for deep UV-LEDs grown by the Metalorganic chemical vapor deposition (MOCVD) method and measured at bare-die configuration. In parallel, we have evaluated the internal quantum efficiency (IQE) of AlGaN quantum wells, and found that such wells emitting at 250 nm have an IQE of 50%. From the analysis of these data, we concluded that the efficiency of deep UV LEDs is not limited by the IQE but by the light extraction efficiency, injection efficiency or a combination of both.
Growth of Single-Walled Carbon Nanotubes on Surface with Controlled Structures
Authors: Zhang Jin , Hong Guo , Xie Liming , Yu Xuechun , Liu Zhongfan 
Published: January 2010

AbstractDue to their excellent properties, single-walled carbon nanotubes (SWNTs) have been regarded as one of the most potential materials for future applications in nanoelectronic devices. However, there is a huge gulf between production and applications. To meet the needs for applications, SWNTs' chirality, metallic/semiconducting property and morphology should be controlled in the growth process. Together with our recent works, we present herein a brief review on the growth of SWNTs on surface with controlled structures, including 1) Cap engineering for SWNTs growth with controlled chirality; 2) Reaction activity diversity induced growth of semiconducting SWNTs; and 3) Combination of two growth modes for fabricating SWNTs on surface with controlled morphology.
Synchrotron Photoluminescence Spectroscopy of Boron Nitride Nanotubes with Different Metal Impurities
Authors: Yu Jun , Chen Ying Ian , Li Luhua , Cheng Bing-ming , Yu Dehong 
Published: January 2010

AbstractIn this paper, the impurity influences of BNNTs on photoluminescence (PL) analysis have been investigated systematically. Similar PL spectra were obtained from bulk disk of the cold-pressed BNNTs and dispersed individual BNNTs deposited on CaF2 substrate. Metal impurities such as Fe and Au do not affect PL emissions of the BNNTs strongly possibly because Au doping creates sever structural damages but do not change the electronic structure.
Determination of the wurtzite content and orientation distribution of nanowire ensembles
Authors: Kriegner Dominik , Keplinger Mario , Stangl Julian , Andrews Aaron M. , Klang Pavel , Mandl Bernhard , Mårtensson Thomas , Borgstrom Magnus , Deppert Knut , Samuelson Lars , Strasser Gottfried , Bauer Güenther 
Published: January 2010

AbstractWe present x-ray diffraction based methods to quantitatively determine the wurtzite content of nanowire ensembles and to investigate the effect of twinning. An increased lattice constant in growth direction is found for all investigated InAs and InP nanowire samples. This increase is independent of the wurtzite content. Using x-ray pole figures we find that twinning is present in GaAs/Si branched nanowires, which leads to 60° rotations of the lattice.
Assembly of Nanowires by Contact-Line Deposition
Authors: Zhang Mei , Abdelsalam Farag , McDargh Zach , Zhang Chuck , Wang Ben 
Published: January 2010

AbstractThe post-synthetic assembly of nanowires into desired configurations presents a unique challenge. Through the use of a microscope we observed the behaviors of different nanowires during the drying of their solutions. In addition, we also viewed the resulting dried patterns on substrates by AFM and SEM. We found that nanowires are deposited and aligned along the contact line. The evaporation-induced capillary flow carries the nanowires to the contact line and their alignment there is due to self-assembly directed by solvent evaporation. Based on our observations, we developed a contact-line-deposition process and successfully assembled aligned nanowires in proper patterns on substrates.
Silica-coated Silver Nanoparticles
Authors: Sotiriou Georgios A , Pratsinis Sotiris E. 
Published: January 2010

AbstractSilver (Ag) nanoparticles dispersed in an amorphous silica (SiO2) matrix or coated by a SiO2 layer were synthesized by flame spray pyrolysis (FSP). The coated nanoparticles were produced by using a modified enclosed FSP setup, in which the SiO2 precursor was injected through a ring above the FSP nozzle at various burner-ring-distances (BRDs), after the core Ag nanoparticles had been formed. The produced nanoparticles were characterized by XRD, BET, TEM and UV/vis analysis. The Ag particle size was possible to be controlled by tuning the FSP parameters. For the SiO2 coated nanoparticles, larger Ag core sizes were obtained for higher BRDs. All the produced nanoparticles exhibited the characteristic plasmon resonance frequency of Ag nanoparticles.