bluuebunny/crossref_metadata_2025 huggingface dataset:
Counselor Educator Nonverbal Behavior in the Supervision Process
Authors: WILBUR MICHAEL P. , WILBUR JANICE ROBERTS
Published: February 2012

Sixteen counselor educators and counselors‐in‐training participated in a content analysis study that investigated supervisors' nonverbal behaviors in the supervision process.

The investigation displays the high‐to‐low frequency of 21 identified nonverbal behaviors of supervisors and indicates a statistically significant association and consistency among the supervisors' nonverbal behaviors. It implies the applicability of these behaviors to counselor supervision and training, provides a methodological approach for the further investigation of nonverbal behavior in actual supervision and counseling situations, and suggests that counselor educators should not overlook these variables in systematic research or their influence in the supervision process with novice counselors.
School Counselor Field Supervision: A Model
Authors: DOWNING C. JERRY , MAPLES MARY F.
Published: February 2012

Little attention is devoted, in literature, to posttraining supervision. Collective bargaining procedures have produced a need for systematic approaches to the field supervision of practicing school counselors. A supervision model based on a ten‐month counseling contract is described.
Counseling Effectiveness and Trainee Helping Qualities: Another View
Authors: ZARSKI JOHN J. , BUBENZER DONALD L. , WALTER DONALD A.
Published: February 2012

This study addresses the importance of client satisfaction as an index of counseling effectiveness and also examines the relationship between trainee personality characteristics and supervisor ratings of trainee performance. Results indicated that a significant inverse relationship existed between trainee levels of self‐acceptance and client's ratings of counseling satisfaction. Supervisor's ratings of the trainee's performance and progress in supervision were also inversely related to trainee levels of self‐acceptance. Agreement was found between supervisor's ratings of trainee performance and client satisfaction with counseling. Implications of these results are discussed in terms of counselor training programs and future research designs.
A Review of the Nonreading Aptitude Test Battery
Authors: STECKLER VICTOR
Published: February 2012

This article re‐examines data from the Nonreading Aptitude Test Battery (NATB) and General Aptitude Test Battery (GATB) test manuals in light of some conventionally accepted psychometric considerations. The NATB standardization sample is adequate. However, the validity is open to question since the NATB demonstrates only a modest correlation with the GATB. It is recommended that caution be employed in relating NATB profiles to the Occupational Aptitude Patterns' norms. This is especially relevant since the NATB, lacking norms of its own, relies on GATB norms and its derived Occupational Aptitude Pattern (OAP).
Measuring Manual Dexterity with the GATB: Wooden versus Plastic Pegboards
Authors: KAPES JEROME T. , SIEVERT NORMAN W.
Published: February 2012

As part of a ten‐year longitudinal study of vocational development being conducted in the Department of Vocational Education at The Pennsylvania State University, it was decided to administer the GATB to an entire ninth grade class of 1,050 boys and girls. Because both wooden and plastic pegboards were being used to assess GATB aptitude manual dexterity (M), it was decided to compare the scores obtained on the two different types of boards. Results of the study indicate that those students who were tested using the wooden boards performed significantly better than did students tested on the plastic boards. Converted score differences for aptitude M ranged from 3 to 26 points with an average difference of 11 points.
Use of the General Aptitude Test Battery to Predict Success on the Tests of General Educational Development
Authors: COVINGTON JANET B. , TRIMMER HARVEY W. , KLEIN FREDA
Published: February 2012

An increasing trend in recent years has been the desirability of a high school diploma either as an entrance qualification of employment or as a by‐product of a training program. As a result of this trend, the tests of General Educational Development (GED) are, in many states, being seen as an alternative for many individuals who have neither the time nor the inclination to reenter high school or other formal educational programs to obtain a high school diploma or its equivalent.

The purpose of this article is to examine data from the General Aptitude Test Battery (GATB) in an attempt to use that battery, or more appropriately, subtests of that battery to predict passage of the GED examination. Data were collected and analyzed from four different geographically diffuse states for both comparative and predictive capabilitites. It is concluded that the G and V scores on these subtests of the GATB (at 110 or greater on either of these aptitudes) indicate almost definite prediction for passage of the GED.
Counseling and Psychotherapy: Strange Bedfellows or Cohabitants
Authors: TRIMMER HARVEY W.
Published: February 2012

Administrators in the employment service (and in other agency settings) frequently admonish counselors that they are to “counsel,” not to “do therapy.” Yet, the terms counseling and psychotherapy (or therapy), are both widely used, often more or less interchangeably. Although there appears to be general agreement that the two are not exactly synonymous, there does not seem to be that same general agreement concerning the differences between them. This article endeavors to present the three basic positions established in the literature and to suggest an alternative position for consideration by practitioners of the art (or science).
Speculations About Problems in Conducting Research with Public Offenders
Authors: BARRY JOHN R.
Published: February 2012

Problems in conducting research with public offenders are legion. These problems include the lack of a systematic body of knowledge, the lack of avenues of dissemination of information, the lack of a data base describing the situation as it is now, and the lack of communication and/or rapport between researchers and many criminal justice staff members. In addition, ethical concerns about human research are becoming more evident and need to be dealt with. While a few ways of coping with these problems are mentioned, solutions often depend almost entirely on the quality of the setting and the individuals involved in it.
A Validity and Multiple Regression Study of Performance in the GEPI as a Predictor for Performance on the GED
Authors: MUSGROVE WALTER J. , MUSGROVE GLENN J.
Published: February 2012

This study attempts to determine the relationship between the subtests of the General Education Performance Index (GEPI) and the revised version of the General Educational Development Test (GED), and reports a technique whereby performance on the GEPI may be used to predict performance on the GED. Participants were men and women, aged 16 to 62, who were given the GEPI and then the GED. Multiple regression equations were generated to predict GED scores using age and each GEPI score. No significant correlation was found between age and GED scores or between age and GEPI scores, but a highly significant correlation (p > .001) was found between each GEPI subtest score and the subsequent score attained on the GED. Regression equations for each subtest and cross validation that demonstrated high predictive validity for each regression equation are reported.
Roles of the Drug Abuse Counselor in a Correctional Facility
Authors: BEAMISH PATRICIA M. , PAGE RICHARD C. , SMITH S. MAE
Published: February 2012

This article focuses on the variety of roles that counselors working with drug offenders are expected to undertake. The authority, counseling, and intercessor roles are discussed, as well as the unwritten roles that are assumed by drug abuse counselors. Potential role conflicts and their effects, both on drug abuse counselors and on their clients, are addressed.
A Survey of Job Attitudes of Federal Prison Employees
Authors: TURNER CLARA , JOHNSON NORBERT
Published: February 2012

Turner and Johnson attempted to determine the attitudes of federal prison employees regarding job satisfaction and personal safety. They designed a questionnaire to measure these factors and sent it to 147 workers in 19 federal correctional institutions. The results of the questionnaire, which had a return rate of 80%, generally indicate a high level of job satisfaction and relatively little concern about safety among employees who completed the questionnaire.
The PACE Employment Program: An Inmate‐Employer Mutual Development Strategy
Authors: WELDON WARD , MENACKER JULIUS , HURWITZ EMANUEL
Published: February 2012

The PACE Employment Program, funded by the Office of Education's Fund for the Improvement of Post‐Secondary Education, brings together potential employers and employees in a jail setting. The program is administered by the PACE Institute, a private educational organization housed within the Cook County Jail (Chicago). The program seeks to strengthen the nontechnical employment skills of inmate‐students, while also sensitizing prospective employers to the value and employment potential of these students. This is done by having both groups participate in a variety of exercises related to the development and strengthening of personal and interpersonal skills.
Group Orientation for Persons on Probation or Parole
Authors: WEINER RICHARD S.
Published: February 2012

The group orientation program described in this article is a systematic attempt to transmit information and initiate a counseling relationship with persons newly placed on probation or parole. The group orientation process reduced tension and allowed reluctant clients to be guided into a helping relationship. Following the group sessions, individual meetings are designed to capitalize on those gains. During one 7‐month period, 130 persons went through the group orientation, and 81 of these were subsequently transferred to reduced supervision.
The Cosmetic Effect: The Impact of Office Environment on the Client
Authors: MILLER MARK J.
Published: February 2012

To increase counselor awareness of factors outside of the direct counselor‐client dialogue that can affect client growth, the author discusses the impact of seven contextual variables related to office environment and gives suggestions for improving the counseling process.
Simultaneous multi‐site two‐photon photostimulation in three dimensions
Authors: Go Mary Ann , Stricker Christian , Redman Stephen , Bachor Hans‐A. , Daria Vincent Ricardo
Published: February 2012

We demonstrate simultaneous multi‐site two‐photon photolysis of caged neurotransmitters with close to diffraction‐limited resolution in all three dimensions (3D). We use holographic projection of multiple focal spots, which allows full control over the 3D positions of uncaging sites with a high degree of localized excitation. Our system incorporates a two‐photon imaging setup to visualize the 3D morphology of the neurons in order to accurately determine the photostimulation sites. We show its application to studies of synaptic integration by performing simultaneous and controlled glutamate delivery at multiple locations on dendritic trees. (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
An automated approach for the parameterization of accurate intermolecular force‐fields: Pyridine as a case study
Authors: Cacelli Ivo , Cimoli Antonella , Livotto Paolo Roberto , Prampolini Giacomo
Published: February 2012

An automated protocol is proposed and validated, which integrates accurate quantum mechanical calculations with classical numerical simulations. Intermolecular force fields, (FF) suitable for molecular dynamics (MD) and Monte Carlo simulations, are parameterized through a novel iterative approach, fully based on quantum mechanical data, which has been automated and coded into the PICKY software, here presented. The whole procedure is tested and validated for pyridine, whose bulk phase, described through MD simulations performed with the specifically parameterized FF, is characterized by computing several of its thermodynamic, structural, and transport properties, comparing them with their experimental counterparts. © 2011 Wiley Periodicals, Inc.
Structural and static electric response properties of highly symmetric lithiated silicon cages: Theoretical predictions
Authors: Koukaras Emmanuel N. , Zdetsis Aristides D. , Karamanis Panaghiotis , Pouchan Claude , Avramopoulos Aggelos , Papadopoulos Manthos G.
Published: February 2012

It is shown by density functional theory calculations that high symmetry silicon cages can be designed by coating with Li atoms. The resulting highly symmetric lithiated silicon cages (up to D5d symmetry) are low‐lying true minima of the energy hypersurface with binding energies of the order of 4.6 eV per Si atom and moderate highest occupied molecular orbital–lowest unoccupied molecular orbital gaps. Moreover, relying on a systematic study of the electric response properties obtained by ab initio (Hartree–Fock, MP2, and configuration interaction singles (CIS)) and density functional (B3LYP, B2PLYP, and CAM‐B3LYP) methods, it is shown that lithium coating has a large impact on the magnitude of their second hyperpolarizabilities resulting to highly hyperpolarizable species. Such hyperpolarizable character is directly connected to the increase in the density of the low‐lying excited states triggered by the interaction between the Si cage and the surrounding Li atoms. © 2012 Wiley Periodicals, Inc.
Recoil and conversion electron implications to be taken into account in the design of therapeutic radiopharmaceuticals utilising in vivo generators
Authors: Zeevaart Jan Rijn , Szucs Zoltan , Takacs Sandor , van Rooyen Johann , Jansen David
Published: February 2012

The use of radionuclides as potential therapeutic radiopharmaceuticals is increasingly investigated. An important aspect is the delivery of the radionuclide to the target, in which the radionuclide is not lost from the chelating agent. For in vivo generators, not only the log K of complexation between the metal ion and the chelator is important but also whether the daughter radionuclide stays inside the chelator after decay of the parent radionuclide. In our previous work, we showed that the classical recoil effect for β‐decay only applies to decays with a Q value higher than 0.6 MeV (for the atomic mass range around 100). However, the published result for 140Nd/140Pr (Q = 0.222 MeV) indicated that >95% of the daughter (140Pr) was lost by a DOTA chelator upon decay of 140Nd. The experiment was repeated with the 166Dy/166Ho generator (Q = 0.486 MeV) and the 90Sr/90Y generator (Q = 0.546 MeV), which resembles an in vivo chelator system where the transition via the Auger process is absent. It was found that 72% of the daughter (166Ho) was liberated from the DOTA chelator, in contrast to our recoil calculations. It was also found that this ratio of the 166Ho released corresponds to the ratio of transition of holmium atoms via the Auger process (immediately after decay of 166Dy). For the pure β 90Sr/90Y generator, a 1% release from the DOTA chelator was recorded. On theoretical grounds, an electron ejected with an energy above 0.36 MeV (for atomic number = 90) is expected to cause recoil of the daughter atom out of a DOTA chelator, if the chemical bond is 3 eV. From the β‐continuum spectrum of 90Sr, an estimated 10.2% of β particles have an energy exceeding 0.36 MeV. For the 166Dy/166Ho generator, the matching ratio of experimental release versus Auger transition is explained by the fragmentation of the chelator by Auger electron thereby releasing the holmium atoms. For the 90Sr/90Y generator, the calculated and measured percentage release is in the same order of magnitude, proving the equation suitable to describe the classical recoil effect for pure β emission. The discrepancy between the experimental and theoretically calculated release can be explained by a correction of the chemical bond energy to 4.4 eV. Copyright © 2012 John Wiley & Sons, Ltd.
Recent developments of the meshless radial point interpolation method for time‐domain electromagnetics
Authors: Kaufmann T. , Yu Y. , Engström C. , Chen Z. , Fumeaux C.
Published: February 2012

Meshless methods are a promising new field in computational electromagnetics. Instead of relying on an explicit mesh topology, a numerical solution is computed on an unstructured set of collocation nodes. This allows to model fine geometrical details with high accuracy and facilitates the adaptation of node distributions for optimization or refinement purposes. The radial point interpolation method (RPIM) is a meshless method based on radial basis functions. In this paper, the current state of the RPIM in electromagnetics is reviewed. The localized RPIM scheme is summarized, and the interpolation accuracy is discussed in dependence of important parameters. A time‐domain implementation is presented, and important time iteration aspects are reviewed. New formulations for perfectly matched layers and waveguide ports are introduced. An unconditionally stable RPIM scheme is summarized, and its advantages for hybridization with the classical RPIM scheme are discussed in a practical example. The capabilities of an adaptive time‐domain refinement strategy based on the experiences on a frequency‐domain solver are discussed. Copyright © 2012 John Wiley & Sons, Ltd.
Temporal pattern of aridity index in Iran with considering precipitation and evapotranspiration trends
Authors: Tabari Hossein , Aghajanloo Mohammad‐Bagher
Published: February 2012

The knowledge of aridity is needed to explain landscape characteristics and the rational utilization of water resources. With global warming, an increase in aridity is expected for many parts of the world. This study was undertaken to analyse monthly and annual aridity index (IA), utilizing ratio of precipitation (P) over reference evapotranspiration (ETo), at ten stations located in critical agricultural regions in Iran. The Kendall and Spearman tests with considering serial correlation effect were used for analysis. An increase in aridity, as the P/ETo index decreased, was found during the study period, and the increase was more obvious in the semi‐arid region of Iran than in the humid region. The increase of aridity was caused by the concurrent occurrences of negative P trends and positive ETo trends. The results indicated the lowest numbers of the negative IA trends in the July series and the highest numbers in the January, February and March series. According to the Theil–Sen's estimator, the annual P of the semi‐arid and humid regions decreased at the average rates of (−)22.87 and (−)6.24 mm year−1 per decade respectively, whereas the annual ETo values in the semi‐arid and humid regions increased by (+)11.42 and (+)6.82 mm year−1 per decade, respectively. Copyright © 2012 Royal Meteorological Society
Chemical activation reactions of cyclic alkanes and ethers and tricyclodecane ring‐opened diradicals with O2: Thermochemistry, reaction paths, kinetics, and modeling
Authors: Auzmendi‐Murua Itsaso , Hudzik Jason , Bozzelli Joseph W.
Published: February 2012

The initial unimolecular dissociation reactions of tricyclodecane (TCD, C10H16) and other cyclic alkanes and ethers in combustion systems are ring opening to form a dialkyl radical. These diradicals can undergo reassociation, further reaction with the alkyl fragments, or bimolecular reactions. Either of the two radical sites on this dialkyl radical can react with 3O2 to form a peroxy radical. This peroxy radical can further react with the alkyl fragment or undergo association to form a chemically activated peroxide. This energized peroxide has near 25 kcal mol−1 energy above that needed to cleave the weak ROOR bond, and cleavage of this peroxide bond to form a dialkoxy radical is found to be rapid under combustion conditions. The dialkoxy radicals formed can undergo beta scission reactions to form strong carbonyl bonds or undergo intra‐ and intermolecular abstraction reactions with the alkyl fragment or parent cyclic molecules. The exothermicity of the overall reaction to formation of carbonyls or new radical plus alcohols can serve to accelerate the overall combustion process. To our knowledge, these reactions are not considered in present combustion mechanisms. In this study, we evaluate the thermochemistry and kinetics of these reactions and use elementary reaction modeling to evaluate their importance to the TDC and C3 to C5 ring systems. Needed thermochemistry and kinetics of the three‐ to five‐member cyclic alkanes and ethers are developed and also used for increased accuracy in work reactions for thermochemistry of the larger TCD system. © 2012 Wiley Periodicals, Inc. Int J Chem Kinet 44: 232–256, 2012
Quantitative electromyography improves prediction in vocal fold paralysis
Authors: Smith Libby J. , Rosen Clark A. , Niyonkuru Christian , Munin Michael C.
Published: February 2012

Objectives:

Quantitative laryngeal electromyography (LEMG) using turns analysis can differentiate acute vocal fold paralysis from normal controls. The objective of this study is to determine if using both traditional qualitative LEMG measurements in addition to turns analysis improves prognostic accuracy in patients with acute vocal fold paralysis who demonstrate voluntary motor activity.

Study Design:

Retrospective review of LEMG data (qualitative and quantitative) and charts of patients with vocal fold paralysis on flexible laryngoscopy, recurrent laryngeal neuropathy, and varying degrees of motor unit recruitment.

Methods:

Laryngeal EMG using a standardized protocol involving qualitative (evaluation of recruitment, motor unit configuration, detection of fibrillations, synkinesis) and quantitative (turns analysis) measurements was performed. Prognosis was correlated with vocal fold motion recovery status (minimum of 6 months following onset) using positive and negative predictive values (PPV, NPV).

Results:

Twenty‐three patients underwent LEMG for acute recurrent laryngeal neuropathy. All four patients with excellent LEMG prognosis recovered motion, whereas 17/19 patients with fair/poor LEMG prognosis were without motion at least 6 months following onset, resulting in a 100% PPV and 89.5% NPV.

Conclusions:

Integrating both qualitative and quantitative LEMG data improves prognostic accuracy in vocal fold paralysis patients who demonstrate voluntary motor unit activity. Laryngoscope, 2012
Bioengineered prosthesis with allogenic heterotopic fibroblasts for cricoid regeneration
Authors: Nomoto Yukio , Okano Wataru , Imaizumi Mitsuyoshi , Tani Akiko , Nomoto Mika , Omori Koichi
Published: February 2012

Objectives/Hypothesis:

This study aimed to determine the effectiveness of a bioengineered prosthesis with allogenic heterotopic fibroblasts for cricoid regeneration.

Study Design:

Experimental study using a rat model.

Methods:

Bioengineered prosthetic grafts consisting of collagen sponge, polypropylene mesh, collagen gel, and allogenic dermal fibroblasts were implanted into rat cricoid defects. Control grafts were composed of collagen sponge and polypropylene mesh. Regenerated subglottic tissue was subsequently examined histologically.

Results:

Epithelization and changes of collagen fibers occurred more rapidly in the bioengineered model than in the control model. Neogenetic cartilage was observed to form around the ends of cricoid cartilage in both models.

Conclusions:

Heterotopic fibroblasts appear to accelerate epithelial and subepithelial regeneration in a rat model. Laryngoscope, 2012
Utility of positron‐emission tomography/computed tomography imaging in the management of the neck in recurrent laryngeal cancer
Authors: Gilbert Mark R. , Branstetter Barton F. , Kim Seungwon
Published: February 2012

Objectives/Hypothesis:

Patients who develop recurrence of laryngeal cancer after radiotherapy organ preservation protocols are offered salvage laryngectomy, often with bilateral neck dissection. However, there can be multiple complications of neck dissection in the previously irradiated neck, including poor wound healing and increased potential for fistula. Positron‐emission tomography/computed tomography (PET/CT) may have the ability to spare some of these patients from the morbidity of unnecessary neck dissections if it can reliably exclude recurrent nodal disease. The purpose of our study was to determine whether preoperative PET/CT could correctly predict the pathologic status of the neck in patients with locally recurrent laryngeal cancer and clinically N0 neck.

Study Design:

Retrospective review.

Methods:

A review of our head and neck tumor registry revealed 269 patients with recurrence of laryngeal cancer from 1975 to 2010. Out of this pool, we identified 15 patients who had PET/CT scans prior to neck dissections for recurrent laryngeal cancer.

Results:

Five patients with pathologically negative neck had accurate PET/CT reads (100% specificity) prior to surgery. Similarly, seven patients who had a PET/CT read positive for cervical disease had pathologically positive nodes (100% positive predictive value). However, three patients with clinically N0 neck who had PET/CT reads that were negative had positive nodal pathology, giving a sensitivity of 70% and a 62.5% negative predictive value.

Conclusions:

We believe that this false negative rate is too high to warrant deferring neck dissection based on PET/CT, and we recommend that patients who are clinically N0 for recurrent laryngeal cancer be offered neck dissection along with salvage laryngectomy. Laryngoscope, 2012
Increased eustachian tube dysfunction in infants with obstructive sleep apnea
Authors: Robison Jacob G. , Wilson Caleb , Otteson Todd D. , Chakravorty Sangeeta S. , Mehta Deepak K.
Published: February 2012

Objectives/Hypothesis:

To investigate the prevalence of eustachian tube dysfunction (ETD) in infants with obstructive sleep apnea (OSA).

Study Design:

Retrospective medical record review of infants (3–24 months old) diagnosed with OSA and ETD.

Methods:

There were 94 infants diagnosed with OSA by polysomnography and ETD as determined by performance of myringotomy and ventilation tube placement (MT). The main outcome measures were demographic data, apnea‐hypopnea index, dates and number of MTs, interventions for treatment of OSA, and medical comorbidities.

Results:

Of 295 infants diagnosed with OSA, 94 (31.9%) had concomitant ETD. A total of 135 MT procedures were performed, with 30 (31.9%) patients undergoing two or more procedures. The average age of first MT was 16.3 months for those undergoing MT only once, and 11.1 months for those undergoing at least two MT procedures. There was no difference in average age of first MT when analyzed by OSA severity (15.6 months, 14.2 months, and 14.6 months for mild, moderate, and severe OSA, respectively). The first MT procedure was performed before or concurrent with the first treatment for OSA in 75 (80%) patients. Of the 137 interventions for treatment of OSA, 10 (45.5%) nonsurgical and 75 (65.2%) surgical interventions did not require further MT procedures afterward.

Conclusions:

The ETD prevalence of 32% in infants with OSA is increased compared to the general pediatric prevalence of 4% to 7%. Patients presenting for evaluation of OSA should also be evaluated for ETD. Surgical interventions for treatment of OSA led to decreased need for further MT procedures.
The oncologic radicality of supracricoid partial laryngectomy with cricohyoidopexy in the treatment of advanced N0‐N1 laryngeal squamous cell carcinoma
Authors: De Virgilio Armando , Fusconi Massimo , Gallo Andrea , Greco Antonio , Kim Se‐Heon , Conte Michela , Alessi Simone , Tombolini Mario , de Vincentiis Marco
Published: February 2012

Objectives/Hypothesis:

The aim of the study was to evaluate the oncologic outcome of our series of advanced laryngeal squamous cell carcinomas, primarily treated by supracricoid laryngectomy with cricohyoidopexy or total laryngectomy, to compare the two therapeutic modalities.

Study Design:

Retrospective controlled study.

Methods:

We retrospectively reviewed the medical files, operative charts, and pathology reports of 83 patients who underwent total laryngectomy or supracricoid laryngectomy with cricohyoidopexy between February 1999 and March 2009. We only included cases in which both surgical treatments were feasible. Endpoints included local control, locoregional control, overall survival, and disease‐specific survival.

Results:

When we stratified the patients according to T stage, no statistically significant differences emerged in terms of overall and disease‐specific survival. When we compared total laryngectomy to cricohyoidopexy in N1 patients, 3‐year overall survival and disease‐specific survival differences were statistically relevant (P = .022 and P = .030, respectively).

Conclusions:

Total laryngectomy warranted better results in term of overall and disease‐specific survival, although the differences were not statistically significant. Local and locoregional control in the two treatment groups were overlapping, showing that cricohyoidopexy (when technically feasible) could be a valid surgical option in selected advanced laryngeal squamous cell carcinoma. Laryngoscope, 2012
Correlation between the head‐lying side during sleep and the affected side by benign paroxysmal positional vertigo involving the posterior or horizontal semicircular canal
Authors: Shim Dae Bo , Kim Ji Hong , Park Kye Chun , Song Mee Hyun , Park Hong Ju
Published: February 2012

Objectives/Hypothesis:

The aim of this study was to evaluate the relationship between the head position during sleep and the affected semicircular canal (SCC) in patients with benign paroxysmal positional vertigo (BPPV).

Study Design:

Prospective study at a tertiary hospital.

Methods:

We conducted a prospective study in patients with BPPV involving posterior or horizontal SCCs. Of a total of 425 patients diagnosed with BPPV, 83 patients showing signs of simultaneous multiple canal involvement, and those having combined otologic diseases in the same ear were excluded from the study. All patients included in the study were asked to define their preferred head‐lying side at the beginning of sleep among the following choices: supine, lateral (right or left), or no predominant side.

Results:

Our study included 174 patients with posterior SCC BPPV (p‐BPPV) and 168 patients with horizontal SCC BPPV (h‐BPPV). Patients habitually adopted a lateral head position during sleep in 105 cases of p‐BPPV and 109 cases of h‐BPPV. Statistically significant correlation was demonstrated between the head‐lying side during sleep and the affected side by BPPV (P < .01) in patients with p‐BPPV as well as h‐BPPV.

Conclusions:

There is significant correlation between the head‐lying side during sleep and the side affected by BPPV in h‐BPPV and p‐BPPV, which may provide additional clues about the pathophysiology of BPPV. Clinically, this information may be used to provide helpful guidelines for patients with BPPV concerning their sleeping positions to prevent recurrence of BPPV. Laryngoscope, 2012
The possible price of auditory cueing: Influence on obstacle avoidance in Parkinson's disease
Authors: Nanhoe‐Mahabier Wandana , Delval Arnaud , Snijders Anke H. , Weerdesteyn Vivian , Overeem Sebastiaan , Bloem Bastiaan R.
Published: February 2012

Background:

Under carefully controlled conditions, rhythmic auditory cueing can improve gait in patients with Parkinson's disease (PD). In complex environments, attention paid to cueing might adversely affect gait, for example when a simultaneous task—such as avoiding obstacles—has to be executed. We primarily examined whether concurrent auditory cueing interferes with an obstacle avoidance task in patients with PD. The secondary aim was to study differences between patients with and without freezing of gait.

Methods:

Nineteen patients with PD (8 with freezing) were examined on a treadmill in 4 conditions: normal walking; walking with auditory cueing; walking with an obstacle avoidance task; and walking with auditory cueing and obstacle avoidance. Outcome measures included kinematic gait parameters and obstacle crossing parameters.

Results:

Auditory cueing improved gait in PD, without negative effects on concurrent obstacle avoidance. Additionally, freezers avoided obstacles less efficiently than non‐freezers.

Conclusions:

PD patients are able to successfully execute an obstacle avoidance task, when auditory cueing is administered simultaneously. The different obstacle avoidance behavior in freezers may contribute to their higher fall risk. © 2012 Movement Disorder Society
Genetic influences on cognitive decline in Parkinson's disease
Authors: Morley James F. , Xie Sharon X. , Hurtig Howard I. , Stern Matthew B. , Colcher Amy , Horn Stacy , Dahodwala Nabila , Duda John E. , Weintraub Daniel , Chen‐Plotkin Alice S. , Van Deerlin Vivianna , Falcone Dana , Siderowf Andrew
Published: February 2012

The role of genetic factors in cognitive decline associated with Parkinson's disease (PD) is unclear. We examined whether variations in apolipoprotein E (APOE), microtubule‐associated protein tau (MAPT), or catechol‐O‐methytransferase (COMT) genotypes are associated with cognitive decline in PD. We performed a prospective cohort study of 212 patients with a clinical diagnosis of PD. The primary outcome was change in Mattis Dementia Rating Scale version 2 score. Linear mixed‐effects models and survival analysis were used to test for associations between genotypes and change in cognitive function over time. The ε4 allele of APOE was associated with more rapid decline (loss of 2.9; 95% confidence interval [CI]: 1.7–4.1) of more points per year; P < 0.001) in total score and an increased risk of a ≥10 point drop during the follow‐up period (hazard ratio, 2.8; 95% CI: 1.4–5.4; P = 0.003). MAPT haplotype and COMT genotype were associated with measures of memory and attention, respectively, over the entire follow‐up period, but not with the overall rate of cognitive decline. These results confirm and extend previously described genetic associations with cognitive decline in PD and imply that individual genes may exert effects on specific cognitive domains or at different disease stages. Carrying at least one APOE ε4 allele is associated with more rapid cognitive decline in PD, supporting the idea of a component of shared etiology between PD dementia and Alzheimer's disease. Clinically, these results suggest that genotyping can provide information about the risk of future cognitive decline for PD patients. © 2012 Movement Disorder Society
The uniqueness and existence of solutions for the 3‐D Helmholtz equation in a stratified medium with unbounded perturbation
Authors: Liu Lihan , Qin Yuehai , Xu Yongzhi , Zhao Yuqiu
Published: February 2012

In this paper, we study the 3D Helmholtz equation in perturbed stratified media, allowing the presence of guided waves. Our assumptions on the perturbed and source terms are too few. On the basis of the knowledge of the Green's function for the 3D homogeneous Helmholtz equation in unperturbed stratified media, we introduce a generalized (out‐going) Sommerfeld–Rellich radiation condition, and then we prove the uniqueness and existence of solutions for the studied 3D Helmholtz equation satisfying our radiation condition. Copyright © 2012 John Wiley & Sons, Ltd.
The null field equations for flexural oscillations of elastic plates
Authors: Thomson G.R. , Constanda C.
Published: February 2012

A null field method is constructed to solve the exterior Dirichlet, Neumann, and Robin boundary value problems associated with the high‐frequency harmonic oscillations of Mindlin‐type plates. The case of an infinite plate with a bounded elastic inclusion is also considered. Additionally, the completeness of certain sets of wavefunctions is investigated. Copyright © 2012 John Wiley & Sons, Ltd.
A nonlinear transmission problem for a compound plate with thermoelastic part
Authors: Potomkin M.
Published: February 2012

In this paper, we study a nonlinear transmission problem for a plate that consists of thermoelastic and isothermal parts. The problem generates a dynamical system in a suitable Hilbert space. The main result is the proof of the asymptotic smoothness of this dynamical system. We also prove the existence of a compact global attractor in special cases when the nonlinearity is of Berger type or scalar. Copyright © 2012 John Wiley & Sons, Ltd.
The duality property of the Discrete Fourier Transform based on Simpson's rule
Authors: Singh P. , Singh V.
Published: February 2012

The classical Discrete Fourier Transform (DFT) satisfies a duality property that transforms a discrete time signal to the frequency domain and back to the original domain. In doing so, the original signal is reversed to within a multiplicative factor, namely the dimension of the transformation matrix. In this paper, we prove that the DFT based on Simpson's method satisfies a similar property and illustrate its effect on a real discrete signal. The duality property is particularly useful in determining the components of the transformation matrix as well as components of its positive integral powers. Copyright © 2012 John Wiley & Sons, Ltd.
WIDE dynamic range low noise amplifier module for Ka‐band radar applications
Authors: Jeong Jinho , Kim Youngmin , Park Sangmin , Kim Younjin , Park Changhyun , Lee Sangjoo , Kwon Youngwoo
Published: February 2012

Ka‐band low noise amplifier (LNA) module with wide dynamic range is presented using 0.15‐μm pseudo‐morphic high electron mobility transistors for radar applications.Two of attenuator‐combined low‐gain LNA microwave monolithic integrated circuits are cascaded to increase the gain without degrading input power handling capability. There exist two operating modes depending on the level of input power, that is, low power and high power modes. The measurement shows a high gain of 21.9 dB and low noise figure of 2.7 dB at 35 GHz in low power mode at which two attenuators are off. At high input power, the attenuators are turned on to handle high power, and the module presents an attenuation of 6.4 dB with a high input 1‐dB gain compression point (P1dB,in) of 6.5 dBm. The module shows good input and output return losses better than 9.1 dB in both modes. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1031–1035, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26675
Dual linearly polarized X‐band dielectric resonator antenna yielding symmetric radiation patterns
Authors: Faiz A. M. , Alves T. , Poussot B. , Laheurte J. M.
Published: February 2012

A dielectric resonator antenna is excited by two orthogonal H‐shaped aperture slots yielding two orthogonal polarizations in the broadside direction. A common impedance bandwidth of 5.9% and input port isolation of −35 dB are obtained in the X‐band. The broadside radiation patterns are found to be highly symmetric and stable with cross polarization levels −15 dB or better over the entire matching frequency band. The maximum measured gain is found to be 2.5 dBi at 8.4 GHz. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:999–1001, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26677
Analyses of a square ring resonator used for bandpass filter design with multispurious suppression
Authors: Pan Heng‐Yau , Yang Ru‐Yuan , Lin Jia‐Sheng
Published: February 2012

In this article, we proposed a method to analyze the voltages, currents, and imaginary impedances of the resonant modes in the square ring resonator by converting the square ring resonator to a guided wavelength transmission line.The impedance of the first four resonant modes of the ring resonator can be found and used as the coupling region for the bandpass response design with a high quality and multispurious suppression. A filter example using this concept was designed, fabricated, and measured. The filter composed of two square ring resonators and a half wavelength microstrip line showed a wide rejection bandwidth until four times the passband frequency. The simulated and measured results of the filter example were in a good agreement. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1089–1092, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26702
Multiband printed and double‐sided dipole antenna for WLAN/WiMAX applications
Authors: Yuan Z.‐X. , Yin Y.‐Z. , Ding Y. , Li B. , Xie J. J.
Published: February 2012

A novel type of printed and doubled‐sided dipole antenna with multiband operation for wireless local area networks and worldwide interoperability for microwave access is presented. The antenna is composed of several symmetrical branch strips dipoles which are employed as resonators for multiband operation and a modified rectangular ground plane as a reflector. Prototype of the proposed antenna has been constructed and experimentally studied. The measured results of the tri‐band not only explore wide −10 dB impedance bandwidths of 20, 14, and 15% at the operating bands of 2.5, 3.5, and 5.5 GHz respectively, but also show good agreement with the numerical predictions. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1019–1022, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26705
Optical spin manipulation using dark‐bright soliton behaviors in a panda ring resonator
Authors: Muhammad F. D. , Teeka C. , Ali J. , Yupapin P. P.
Published: February 2012

A new concept of an optoelectronic spin generation using bright and dark soliton conversion behaviors within a modified optical add‐drop filters known as a PANDA ring resonator is proposed. The orthogonal solitons can be formed randomly within the system and detected simultaneously at the output ports. Under the resonant condition, the random transverse electric and magnetic fields of the solitons corresponding to the left‐hand and right‐hand photons can be generated. Whenever a photon is absorbed by an object, an angular momentum of either + ħ or –ħ is imparted to the object, in which two possible spin states known as optoelectronic spins are exhibited. Furthermore, the array of optoelectronic spins, i.e., many particles can be generated and controlled by using the proposed system, which can be used to form large scale spintronics applications. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:987–990, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26708
A novel design and development of simple monopole antenna for UWB operation
Authors: Veereshappa M. , Mulgi S. N. , Satnoor S. K.
Published: February 2012

A novel design and development of simple monopole rectangular microstip antenna is proposed for ultrawideband (UWB) operation. The antenna operates from 4.80 to 15.82 GHz with a reject band of 4.90 to 7.16 GHz. The proposed antenna is constructed from conventional rectangular microstip antenna by placing ground plane of height 2.48 cm on the top of the substrate with a distance of 0.1 cm from the microstripline feed and a continuous copper layer of same height is placed below the microstripline on the bottom layer of the substrate. Experimental results are in close agreement with the simulated results. The proposed antenna may find application for UWB operation. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:953–955, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26710
A novel dual‐band metamaterial antenna based on complementary split ring resonators
Authors: Xie Yi Hong , Zhu Cheng , Li Long , Liang Chang Hong
Published: February 2012

A novel dual‐band microstrip patch antenna based on complementary split ring resonators (CSRRs) is proposed and analyzed.By etching two CSRRs on the ground plane of a conventional patch antenna, the proposed dual‐band metamaterial antenna can be easily realized. The proposed antenna shows good performances at both resonant frequencies. The CSRRs embedded make a major contribution to the first operating band, but have a minor effect on the second operating band which is originated by the patch. Good shape patterns are achieved at each operating frequecy region and the experimental results correspond well with simulated results. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1007–1009, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26715
Design and fabrication of novel microlens–micromirrors array for infrared focal plane array
Authors: Jian‐Hua Yan , Wen Ou , Yi Ou , Li‐Jun Zhao
Published: February 2012

A simple method on fabricating a novel structure of microlens–micromirrors array (MMA) with 100% fill factor and smooth surface profile is presented. The MMA has a special structure, which has a microlens array with foot diameter of 35 μm on the upper layer and a micromirrors array with top width of 50 μm and bottom width of 30 μm on the lower layer. These two arrays are connected by a thin layer of silicon. The new structure has potential to integrate with infrared focal plane arrays (IRFPAs). An analytical optical model is established and experimentally verified; results show that all of the incident infrared lights within a certain range can be absorbed by the photosensitive surface of IRFPAs with this structure. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:879–884, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26722
Multimode interference in outer cladding large‐core, air‐clad photonic crystal fiber
Authors: Coelho Luís , Kobelke Jens , Schuster Kay , Frazão Orlando
Published: February 2012

It is described a large‐core air‐clad photonic crystal fiber‐based sensing structure using the outer cladding as a light guide, which is highly sensitive to refractive index. The sensing head is based on multimodal interference, and relies on a single mode/large‐core air‐clad photonic crystal fiber/single mode fiber configuration. Using this configuration and controlling the light to travel in a segment of the outer cladding multimode fiber, it was possible to implement a sensing head and the results were obtained independently from variations of temperature, strain and refractive index. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1009–1011, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26726
Dual‐band printed dipole antenna loaded with open complementary split‐ring resonators for wireless applications
Authors: Herraiz‐Martínez Francisco Javier , Paredes Ferran , Zamora Gerard , Martín Ferran , Bonache Jordi
Published: February 2012

In this article, a printed dipole antenna loaded with open complementary split ring resonators is proposed. The integration of these particles inside the dipole structure provides dual‐band behavior. Furthermore, a dipolar‐like radiation pattern is obtained at both working frequency bands. A prototype has been designed for operation in the L1‐GPS frequency (1.575 GHz) and the WiFi band of 2.4–2.48 GHz. The prototype has been fabricated and measured, achieving good results. The obtained results show the suitability of the proposed design for dual‐band wireless terminals. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1014–1017, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26728