bluuebunny/crossref_metadata_2025_split huggingface dataset:
Design and characterisation of a three‐forked micropump on a fluid circulation channel
Authors: Mun Byung‐Phil , Park Chang‐Ju , Yoo Sung‐Keun , Lee Jong‐Hyun 
Published: May 2013

A fluid circulation micropump that has three control channels activated by a single pressure source is reported. The proposed micropump can rotate a fluid in one direction because the control channels have widths that decrease in the fluid flow direction, thereby squeezing a fluid channel with different deflections under an identical pressure. The response time and deflection of the control channels are also investigated to demonstrate the effect of width differences on the flow rate of the micropump. In this reported work, several micropumps with different channel width ratios are fabricated, and their flow rates are experimentally analysed; the maximum flow rate of the proposed micropump was 10.8 nl/min at 3 Hz and 350 kPa for control channel widths of 300, 200 and 100 μm.
Lift‐off process of piezoelectric lead–zirconate–titanate thin film using self‐assembled monolayer as sacrificial layer
Authors: Lu Jian , Takagi Hideki , Maeda Ryutaro 
Published: May 2013

In this work, a hydrophobic self‐assembled monolayer, perfluorodecyltrichlorosilane (FDTS) (CF3(CF2)7 (CH2)2SiCl3), was proposed as a sacrificial layer for a lift‐off process of a piezoelectric lead–zirconate–titanate (PZT) thin film on a Pt/Ti/SiO2/Si substrate. A FDTS fine pattern was firstly vapour deposited on a Pt/Ti/SiO2/Si substrate by a lift‐off process, and then the PZT precursor was spin‐coated on the Pt/Ti/SiO2/Si substrate, post‐baked so the solvent decomposed and evaporated and annealed for crystallisation. The experimental results demonstrated that the super‐hydrophobic FDTS with a contact angle of >120° is effective in preventing PZT crystallisation because of its thermal stability during PZT post‐baking, and its barrier‐effects between the spin‐coated PZT precursor and the Pt/Ti substrate. After removing the FDTS and the PZT which is on top of the FDTS by a second lift‐off process using ultrasonic agitation, a PZT fine pattern was successfully obtained on the Pt/Ti/SiO2/Si substrate with a thickness of 200–300 nm and feature size of a few tens of microns. In this Letter, the hydrophobic properties and surface morphology of different types of FDTS were studied and its barrier‐effect on PZT crystallisation were analysed. The effects of PZT thickness in each spin‐coating to lift‐off the and PZT properties were investigated. The obtained PZT pattern was evaluated by an X‐ray diffraction measurement.
Room‐temperature synthesis of Mg(OH)2 nanorods and nanowires in Mg–H2O–NaCl reaction system
Authors: Liu Zongjian , Chen Jingyun , Zheng Yifan 
Published: May 2013

A novel method based on the reaction between Mg foil and water in the presence of NaCl has been employed to synthesise one‐dimensional (1D) Mg(OH)2 nanostructures. It is found that the presence of NaCl not only increases the reaction rate but also results in the formation of 1D Mg(OH)2 nanostructures with their morphologies being related to the NaCl concentration. Nanorods with 100–400 nm in width and more than 1 μm in length are observed when the NaCl concentration is low, whereas nanowires with 20–120 nm in diameter and several micrometres in length and their self‐assembled nest‐like structures are formed in the case of high NaCl concentration. The authors’ results have also shown that both nanorods and nanowires grow along the [110] direction. Based on experimental observations, a possible mechanism is proposed for the growth of 1D Mg(OH)2 nanostructures and their self‐assembled structures.
Surface modification of nanoparticles with octadecyl trichlorosilane and its effects on photocatalytic activity
Authors: Qian Jianhua , Ma Quanliang , Xu Jiasheng 
Published: May 2013

The surfaces of titanium dioxide (TiO2) nanoparticles were modified with octadecyl trichlorosilane (OTS) as a coupling agent in different conditions. In order to improve the nanoparticles' dispersion and transform the interactions between nanoparticles in different conditions, the grafting of OTS on the TiO2 nanoparticles' surface was characterised by thermogravimetric analysis and Fourier transform infrared techniques. An ultraviolet (UV) spectrophotometer was employed to evaluate the absorbance of UV‐light in the wavelength range of 200–900 nm. To assess the light catalytic activity, UV/vis diffuse reflectance spectra were applied to detect the absorbance of Rhodamine B, which was absorbed in the dark and degraded under a lamp. An effective method has been provided to improve photocatalytic activity, which may also be applied to the modification of other nanomaterials.
Comparison of postoperative pain between laser‐assisted uvulopalatoplasty, uvulopalatopharyngoplasty, and radiofrequency volumetric tissue reduction of the palate
Authors: Troell Robert J. , Powell Nelson B. , Riley Robert W. , Li Kasey K. , Guilleminault Christian 
Published: May 2013

OBJECTIVESThis study compares the posttreatment discomfort between laser‐assisted uvulopalatoplasty (LAUP), uvulopalatopharyngoplasty (UPPP), and radiofrequency volumetric tissue reduction (RFVTR) of the palate through the use of visual analog pain scales and a quantitative assessment of the analgesic medication taken.METHODSIn one group, LAUP (n = 10) or UPPP (n = 9) was used to treat patients' snoring or sleep‐disordered breathing (SDB), and the other group underwent RFVTR (n = 22).RESULTSThe mean numbers of days with pain after RFVTR, LAUP, and UPPP were 2.6, 13.8, and 14.3 days, respectively. Narcotic analgesics were required in the RFVTR, LAUP, and UPPP groups in 9%, 100%, and 100% of the subjects, respectively. The mean number of these days requiring narcotic pain medications for RFVTR, LAUP, and UPPP was 0.2, 11.8, and 12.4 days, whereas the total narcotic equivalent was 0.3, 7.4 and 29.6 days, respectively.CONCLUSIONRFVTR of the soft palate produced less posttreatment pain than LAUP or UPPP. LAUP and UPPP appeared to show little difference in the severity or duration of posttreatment discomfort.
Intraoperative radiolymphoscintigraphy for detection of occult nodal metastasis in patients with head and neck squamous cell carcinoma
Authors: Zitsch Robert P. , Todd Daniel W. , Renner Gregory J. , Singh Amolak 
Published: May 2013

OBJECTIVESWe sought to determine the feasibility and utility of intraoperative radiolymphoscintigraphy as a screening procedure for the detection of occult metastatic disease in selected cases of head and neck squamous cell carcinoma (HNSCC).METHODSPatients with accessible primary HNSCC and no evidence of metastatic disease who were already undergoing planned surgical resection of the primary tumor and elective neck dissection met the inclusion criteria. Before resection, a handheld gamma probe was used to find the radiolabeled sentinel lymph node (SLN). The neck specimen was examined ex vivo by using the gamma probe; the SLN or SLNs were dissected free from the specimen and sent separately for histopathologic examination.RESULTSAt least one SLN was identified in all patients enrolled thus far. Four patients had microscopic carcinoma found in the SLN. Two of these had cancer only in the SLN, and two had disease both in the SLN and the remaining specimen.CONCLUSIONSIntraoperative radiolymphoscintigraphy appears to be a feasible and promising procedure to aid the surgeon in more accurately detecting occult metastatic HNSCC.
Comparison of open, percutaneous, and translaryngeal tracheostomies
Authors: Maccallum Patricia L. , Parnes Lorne S. , Sharpe Michael D. , Harris Chris 
Published: May 2013

INTRODUCTIONWith 3 tracheostomy techniques currently available, controversy exists regarding which is safest and most economical. Percutaneous (PDT) and the new translaryngeal (TLT) tracheostomies are cited as more cost‐effective than the traditional open surgical procedure because they are bedside techniques. Our objective was to compare the perioperative and postoperative complications of the 3 techniques.STUDY DESIGNThis was a prospective trial involving 100 consecutive patients who underwent tracheostomy between April and December of 1997 at the London Health Sciences Centre and St Joseph's Health Centre in London, Canada.RESULTSFifty open tracheostomies were performed. Indications included prolonged ventilation (n = 42), airway protection (n = 5), pulmonary hygiene (n = 2), and sleep apnea (n = 1). A tension pneumothorax was the one significant intraoperative complication. Fifteen postoperative complications occurred, most notable of which was a 2‐L hemorrhage at 24 hours. Thirty‐seven TLTs were performed, 20 in patients with coagulopathy. Indications were prolonged intubation (n = 27), airway protection (n = 9), and pulmonary hygiene (n = 1). One intraoperative complication of accidental decannulation occurred. One postoperative complication, a pretracheal abscess, occurred in a decannulated transplant patient 2 weeks after the procedure. Thirteen PDTs were performed. Indications were prolonged intubation (n = 6), airway protection (n = 6), and tracheal toilet (n = 1). No significant complications occurred.CONCLUSIONSTLT and PDT have fewer complications than the traditional open technique. TLT appears to have the greatest utility in the coagulopathic patient.
Short‐ and long‐term outcomes of canalith repositioning for benign paroxysmal positional vertigo
Authors: Nunez Robert A. , Cass Stephen P. , Furman Joseph M. 
Published: May 2013

This is a prospective, nonrandomized study of the canalith repositioning procedure (CRP) for treatment of benign paroxysmal positional vertigo (BPPV). CRP was used to treat 168 patients with BPPV. Patient data were gathered by yearly telephone interviews to determine whether symptoms of position‐induced vertigo had returned. After 1 or 2 treatment sessions 91.3% of patients reported complete symptom resolution. Average follow‐up for the study population after the initial treatment was 26 months. A recurrence rate of 26.8% was found among those patients who initially reported resolution of symptoms after CRP. Application of recurrence data to a Kaplan‐Meier estimation suggests a 15% recurrence rate per year of BPPV, with a 50% recurrence rate of BPPV at 40 months after treatment. There was no significant association between cure or recurrence rate and sex, age, duration of symptoms, presumed cause, or treating physician.
Vestibular dysfunction in Gulf War syndrome
Authors: Roland Peter S. , Haley Robert W. , Yellin Wendy , Owens Kris , Shoup Angela G. , Holt G. Richard 
Published: May 2013

METHODSVestibular complaints of Gulf War veterans were characterized by a nested case‐control study of 23 veterans with 3 different Gulf War syndromes and 20 matched control subjects. All subjects completed a standardized symptom questionnaire and underwent standard audiovestibular tests administered by audiologists blinded to group identities.RESULTSThe prevalence of reported dizzy spells was higher in veterans with Gulf War syndromes 1 (100%), 2 (85%), and 3 (100%) than in controls (25%, P < 0.0001). Dizzy spells were more frequent, lasted longer, and involved a wider variety of accompanying symptoms in veterans with syndrome 2 than in those with syndromes 1 and 3. Audiovestibular testing showed greater interocular asymmetry of nystagmic velocity on sinusoidal harmonic acceleration in syndromes 1 (P = 0.015) and 2 (P = 0.002), greater asymmetry of saccadic velocity in syndrome 2 (P = 0.4), diminished nystagmic velocity after caloric stimulation bilaterally in syndrome 3 (P = 0.02 to 0.04), more subjects with pathologic nystagmus (P = 0.09), and greater interside asymmetry of wave I to III interpeak latency on auditory brain stem response in syndromes 1 (P = 0.005) and 2 (P = 0.07). Asymmetry of gain on sinusoidal harmonic acceleration and pathologic nystagmus were most strongly associated with symptoms of paroxysmal vertigo (P = 0.002 and 0.07, respectively); asymmetry of saccadic velocity, with the severity of vertigo (P = 0.004); and abnormal caloric response, with chronic dysequilibrium (P = 0.006).CONCLUSIONSThe findings are compatible with a subtle neurologic injury from organophosphate‐induced delayed neurotoxicity.
Complications of postoperative radiation therapy after partial laryngectomy in supraglottic cancer: A long‐term evaluation
Authors: Laccourreye Ollivier , Hans StÉPhane , Borzog‐Grayeli Ali , Maulard‐Durdux Catherine , Brasnu Daniel , Housset Martin 
Published: May 2013

This retrospective study, based on a series of 90 patients with invasive squamous cell carcinoma of the supraglottis, was designed to document the functional outcome and complications after postoperative radiation therapy following partial laryngeal surgery. The surgical procedure was a standard supraglottic laryngectomy in 62 patients and a supracricoid partial laryngectomy in 28 patients. All of the patients had an unremarkable postoperative course and achieved locoregional control. The average dose delivered to the remaining larynx was 51.2 Gy (range 25‐71 Gy). The average dose delivered to the neck was 50.6 Gy (range 2270 Gy). The patients were treated at 180‐cGy per fractions in a continuous course technique with a cobalt 60 beam. In 5 patients (5.5%) complications led to cessation of postoperative radiation therapy, and the total dose delivered to the remaining larynx and neck was less than 40 Gy. All patients were followed up for a minimum of 10 years or until death. The 5‐, 10‐, and 15‐year actuarial survival estimates were 71.5%, 44.3%, and 36.3%, respectively. The 5‐, 10‐, and 15‐year actuarial severe complication estimates were all 11.2%. Overall, severe complications occurred in 15 patients. Severe complications led to death in 3 patients (3.3%), permanent gastrostomy in 3 (3.3%), and permanent tracheostomy in 1 (1.1%). A severe complication never resulted in completion of total laryngectomy. In univariate analysis, the mean dose delivered to the larynx was the only variable statistically related to the incidence of a severe complication. The mean dose delivered to the larynx was statistically higher (P= 0.014) in patients who had severe complications (60 Gy) than in patients who did not (50 Gy).
Surgical treatment of labyrinthine fistula caused by cholesteatoma
Authors: Soda‐Merhy Antonio , Betancourt‐SuÁRez Miguel Angel 
Published: May 2013

In a 144‐month period, 27 cases of labyrinthine fistula (LF) were seen, and 360 mastoid operations were performed; the LF prevalence was 7.5%. Primary symptoms were hypoacusis, otorrhea, vertigo, tinnitus, and otalgia. All patients underwent preoperative CT scans and preoperative audiometry. LF diagnosis was made before surgery for 93% of patients on the basis of symptoms, signs, and imaging studies. With respect to surgical technique, the canal‐wall‐down procedure was performed in 92%, and the canal‐wall‐up procedure was performed in 8%. In 88% of patients the fistula was located in the horizontal semicircular canal. In 96% of patients the cholesteatoma matrix was removed, and the fistula was sealed; in 4% of patients the matrix was left. With a follow‐up of 13 years, vertigo disappeared in 96% of patients, and hearing remained unchanged in 70% of patients. Further complications of chronic otitis media existed in approximately half of the patients with LF. Open surgery with removal of the cholesteatoma matrix and sealing of the fistula with temporalis fascia in a canal‐wall‐down manner is a safe procedure that can make vertigo disappear and helps to preserve cochlear function.
Laser‐assisted outpatient septoplasty: Results in 703 patients
Authors: Kamami Yves‐Victor , Pandraud LUC , Bougara A. 
Published: May 2013

Laser‐assisted outpatient septoplasty is a new technique devised to minimize and simplify surgery under local anesthesia. It takes 5 minutes and has a specific clinical application in chronic nasal obstruction because of moderate anterior septal deviation in adults. It is less invasive than traditional septoplasty and has less morbidity, lower medical costs, and faster return to full activity. Seven hundred three patients underwent this operation from August 1995 to June 1998, with a patient evaluation performed before and after surgery. The evaluation was first performed by means of a direct interview, with a clinical examination and acoustic rhinometry, and then by means of a telephone interview, with strictly standardized questioning. Our results show a surgical success rate of 90.8% on the nasal obstruction but also an improvement on nasal discharge, sneezing, recurrent headaches, and chronic rhinosinusitis.
Temperature Modulation of Growth and Physiology of Juvenile Guadalupe Bass
Authors: Sullivan Mario L , Zhang Yixin , Bonner Timothy H , Tomasso Joseph R 
Published: May 2013

Abstract
Fingerling Guadalupe Bass Micropterus treculii were cultured in 18, 21, 24, 27, or 30°C water for 6 weeks. Temperature affected the growth of the Guadalupe Bass when it was measured by increases in TL but not when measured by increase in mass. The optimal temperature for growth of Guadalupe Bass was 27–28°C. Condition factor increased linearly with temperature, indicating that the fish were plumper at warmer temperatures. The mean hematocrit was 37 and not significantly affected by temperature, although a trend of increasing hematocrit with increasing temperature was apparent. The liver index varied significantly with temperature, and the maximum index was at 24°C. The results of this study provide basic thermal information and some base line hematological values for hatchery production and management of Guadalupe Bass.
CAPITO—a web server-based analysis and plotting tool for circular dichroism data
Authors: Wiedemann Christoph , Bellstedt Peter , Görlach Matthias 
Published: May 2013

Abstract
Motivation: Circular dichroism (CD) spectroscopy is one of the most versatile tools to study protein folding and to validate the proper fold of purified proteins. Here, we aim to provide a readily accessible, user-friendly and platform-independent tool capable of analysing multiple CD datasets of virtually any format and returning results as high-quality graphical output to the user.
Results: CAPITO (CD Anaylsis and Plotting Tool) is a novel web server-based tool for analysing and plotting CD data. It allows reliable estimation of secondary structure content utilizing different approaches. CAPITO accepts multiple CD datasets and, hence, is well suited for a wide application range such as the analysis of temperature or pH-dependent (un)folding and the comparison of mutants.
Availability: http://capito.nmr.fli-leibniz.de.
Contact: cwiede@fli-leibniz.de or mago@fli-leibniz.de
Supplementary information: Supplementary data are available at Bioinformatics online.
The unfulfilled promise of management education (ME): the role, value and purposes of ME
Authors: Thomas Howard , Thomas Lynne , Wilson Alex 
Published: May 2013

PurposeThis paper aims to review the evolution of management education primarily over the last 50 years and seeks to identify the challenges and lessons learned in management education and to assess the potential for change. To gain insight into these issues the authors draw on the perspectives of around 40 key individuals from academia, professional bodies, media, business and students.Design/methodology/approachThe content of the paper is based upon a qualitative analysis of around 40 two‐to‐three hour interviews of key global players in the management education field.FindingsThe key stakeholders in management education are identified as students, business and employers respectively. But in terms of relative stakeholder influence faculty, business and students are the top three influencers. Faculty represent the supply‐side whereas business and students represent the demand side of management education. There is evidence that higher tuition fees may increase the power of students and business relative to faculty. The individuals who have had the greatest influence on management education are academics such as Mintzberg and Drucker rather than business school deans or administrators. Institutions such as INSEAD, IMD and Harvard have had the greatest influence. The main issues and challenges identified in Management Education include information technology, globalisation, the role of faculty, competition and business model performance. Few game changing innovations in curricula have occurred in management education raising the question of how change will occur in the future.Originality/valueThere are few in‐depth, open‐ended interview studies of key participants in the field of management education. It adds insights to a range of more reflective literature studies from writers such as Khurana, Mintzberg and Pfeffer.
Towards a liberal management education
Authors: Harney Stefano , Thomas Howard 
Published: May 2013

PurposeThis paper seeks to outline the element of a liberal management education that would attend to the full human development of undergraduate management students enabling them to exercise the responsibility and leadership that the profession and practice of business and management require. It places such an education in the context of the global university today, and points to the shortcomings in management education as it is currently taught, the challenges facing implementation, and finishes with the example of Singapore Management University.Design/methodology/approachThis is a discursive discussion piece drawing on philosophical texts, contemporary debates on management education, historical perspectives on the University, and the authors’ combined experience in management education and business school leadership. It was written as an argument to be debated by future interlocutors.FindingsThe article concludes that liberal management education faces obstacles to implementation. These obstacles are recast as shortcomings in management education itself. It concludes that in part by recognising and overcoming these shortcomings liberal management education holds prospects for improving the full human development of undergraduate management students, and in so doing creating business leaders who have the maturity to take responsible and visionary decisions.Research limitations/implicationsThe article points to the need to elaborate a concrete curriculum across the spectrum of courses and subjects in management education.Practical implicationsThe article invites other business schools to enter into a conversation about liberal management education and share experiences of implementing reforms in management education.Social implicationsLiberal management education aims to produce citizen‐leaders who have the maturity and enlightened perspective to lead in organisations and in society. The intention of the article is to encourage debate and adoption in some form of a liberal management education philosophy and curriculum at other business schools beyond Singapore Management University, with the hope of shifting the emphasis in management education to preparing students as mature citizens as well as business leaders.Originality/valueMany have discussed the problems of the contemporary global university, but few have considered undergraduate management education as a crucible for working out the conflicts and challenges facing today's university.