bluuebunny/crossref_metadata_2025_split huggingface dataset:
Dual‐band antenna circularly polarized for handheld RFID reader using metasurfaces
Authors: Montalvão Augusto C. P. S. , Montalvão Emanuele S. R. , Gomes Neto Alfredo , Campos Antonio L. P. S. , Silva Sandro G. 
Published: July 2016

ABSTRACTIn this article, the authors proposed a new structure able to convert signals linearly polarized generated by a microstrip antenna for circularly polarized signals at two operating bands (2.45 and 5.8 GHz), for use in portable radio frequency identification readers, using two miniaturized metasurfaces. All simulation results were obtained using the commercial software HFSS™. Prototypes were built and their characteristics were measured. We obtained a good agreement between simulated and measured results. The proposed structure is able to obtain linear to circular conversion in two bands of interesting, with a large bandwidth for return loss and axial ratio. The structure is simple and presents good advantages as low profile and low cost. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:2294–2300, 2016
Complex conjugate matching technique for wireless power transfer with multiple inductive coupled resonators
Authors: Kwon DukSoo , Hwang In‐June , Chae Soochang , Oh Kyoung‐Sub , Yu Jong‐Won , Lim Lee Han 
Published: July 2016

ABSTRACTIn this article, a complex conjugate matching problem for the case that additional resonator is mutually inductive coupled with transmitting and receiving resonators is discussed. To deliver wireless power from source to load with maximum efficiency, it is important that the source and the load impedances are fully matched. However, if an additional resonator is inserted to reconfigure the initial system characteristics, a mutually inductive coupling takes place and influences both the transmitting and the receiving resonators. The inductive coupling makes the impedance matching hard, resulting in a difficulty for getting the maximum transfer efficiency at the target frequency. Thus, a generalized impedance matching according to the complex mutual inductance to get maximum transfer efficiency is proposed. To verify the result, an experiment with multiple coils is conducted and analyzed. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:2291–2294, 2016
On‐frame gap‐coupled half‐loop antenna with a narrow ground clearance for the LTE smartphone
Authors: Wong Kin‐Lu , Chang Hsuan‐Jui 
Published: July 2016

ABSTRACTAn on‐frame gap‐coupled half‐loop antenna with a 3‐mm narrow ground clearance disposed at the short edge (bottom or top edge) of the modern LTE smartphone is presented. The antenna has two gap‐coupled half‐loops (first and second half‐loops) formed between an on‐frame metal strip and the device ground plane in the smartphone. The on‐frame metal strip comprises a first strip and a second strip and is disposed on the inner surface of the short‐edge frame of the smartphone casing. No extension of the on‐frame metal strip to two long side edges of the smartphone casing is needed. Two ends of the on‐frame metal strip are connected to the device ground plane through two inductors. Both the first and second strips are also gap‐coupled to a step‐shape feed strip disposed on the narrow ground clearance between the on‐frame metal strip and the device ground plane, thereby forming the first and second half‐loops. The two half‐loops are excited to contribute their fundamental and higher‐order resonant modes to form two operating bands to respectively cover the 824–960 and 1710–2690 MHz for the LTE operation. The antenna structure and operating principle are addressed in this study. Experimental results of the fabricated antenna are presented to verify the simulation study. Effects of the user's hand on the performance of the antenna are also analyzed. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:2344–2351, 2016
Wideband columnar slot antenna
Authors: Pazin Lev , Leviatan Yehuda 
Published: July 2016

ABSTRACTA wideband columnar antenna featuring a radiating slot cut around the outside circumference of a rectangular waveguide is presented. The antenna operates effectively in the frequency band of 1.51–4.75 GHz. The antenna also exhibits a reasonably good omnidirectional pattern in the horizontal plane, with predominantly vertical polarization. The antenna is suitable for use with access points in wireless networks. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:2384–2387, 2016
Dual‐band circular‐polarization filter for obliquely incident light
Authors: Erten Sema , Lakhtakia Akhlesh 
Published: July 2016

ABSTRACTChiral sculptured thin films of zinc selenide with different helical periods were deposited on both sides of a glass slide using the serial bideposition technique in order to fabricate a dual‐band circular‐polarization filter polarizer that exhibits two distinct circular Bragg regimes for a wide range (about 45°) of the angle of incidence. This device can be angle tuned within a ±8% spectral range. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:2381–2384, 2016
A miniaturized UWB via‐less CRLH‐TL loaded CPW FED patch antenna
Authors: Rajasekhar N. V. , Sriram Kumar D. 
Published: July 2016

ABSTRACTA novel miniaturized ultra‐wide band (UWB) via–less composite right hand left hand transmission line (VL‐CRLH TL) loaded‐coplanar waveguide (CPW) fed monopole antenna has been designed. The CRLH unit cell has been realized with series capacitance and parallel inductance and implemented with gap capacitance and meander line inductance respectively. The meander line inductance is grounded using CPW ground through rectangular stub which eliminates conventional CRLH TL metallic via into ground plane. The proposed antenna is constructed of two unit cells fed by a CPW feed. The offset of feed location attached to patch is more important for impedance matching between them and proposed optimum feed location offset lof = 0.6 mm, which eliminates additional quarter wave transformer to impedance match. The total compact antenna dimension is 25 × 15 × 1.6 mm3 or 0.12λ0 × 0.07λ0 × 0.008λ0, where λ0 is free‐space wavelength at 1.55 GHz. It covers the impedance bandwidth (S11< −10dB) of 1.55 GHz – 14.25 GHz, which corresponds to 160% of fractional bandwidth. The minimum and maximum gain of antenna are 1 dBi at 1.55 GHz and 3.5 dBi at 8.4 GHz respectively, which is suitable for UWB applications. The parametric study of antenna has been done using CST microwave studio and a prototype of the antenna with FR4 substrate is fabricated and tested. Good agreement between simulated and measured results. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:2485–2492, 2016
Consistency and factorial invariance of the Davidson trauma scale in heterogeneous populations: results from the 2010 Chilean earthquake
Authors: Kevan Bryan 
Published: July 2016

AbstractThis investigation seeks to validate an application of a standardized post‐traumatic stress symptom self‐report survey, the Davidson Trauma Scale (DTS), with a large, heterogeneous population of earthquake victims. While previous studies have focused primarily on small samples, this investigation uses a unique dataset to assess the validity of this application of the DTS while accounting for heterogeneity and sample size. We use concurrent validity and reliability analysis tests to confirm the validity of the scale. Further, confirmatory factor analysis is used to test the fit of the data's factor structure against previously established trauma models. Finally, these fit tests are repeated across different mutually exclusive vulnerability subsets of the data in order to investigate how the invariance of the scale is affected by sample heterogeneity. We find that this particular application of the scale is, on the whole, reliable and valid, showing good concurrent validity. However, evidence of variability is found across specific vulnerability subsets, indicating that a heterogeneous sample can have a measurable impact on model fit. © 2016 The Authors International Journal of Methods in Psychiatric Research Published by John Wiley & Sons Ltd
Mid‐term outcomes of a male retro‐urethral, transobturator synthetic sling for treatment of post‐prostatectomy incontinence: Impact of radiotherapy and storage dysfunction
Authors: Habashy David , Losco Giovanni , Tse Vincent , Collins Ruth , Chan Lewis 
Published: July 2016

PurposeTo determine mid‐term durability of the AdVance sling for post‐prostatectomy incontinence (PPI) and impact of prior radiotherapy and storage dysfunction.MethodEighty men undergoing AdVance sling for PPI during 2008–2013 were reviewed. Pre‐op urodynamics, pre and post‐op pad usage, prior radiotherapy, and PGI‐I scores were recorded.ResultMean follow‐up was 36 months (range 14–72). Twelve men had radiotherapy pre‐op, 10 had detrusor overactivity (DO), and 20 reduced compliance. Pre‐op mean 24‐hr pad weight was 264 g and mean pads‐per‐day (PPD) 2.60 ± 0.29. In the early post‐op period (3–6 months), mean PPD was 0.40 (SD 0.16); at mid‐term follow‐up mean PPD was 1.02 ± 0.31. Radiotherapy and DO were independently predictive of poor mid‐term outcome. Men with DO or radiotherapy were using 1.03 ± 0.42 (P = 0.019) and 1.17 ± 0.41 (P = 0.02) more PPD, respectively than men without these factors. At mid‐term follow‐up, men without radiotherapy or DO were using 1.98 ± 0.28 less PPD compared to pre‐operatively (P < 0.0001); with radiotherapy or DO men were using 0.73 ± 0.38 (P = 0.057) and 0.72 ± 0.43 (P = 0.092) less PPD, respectively. PGI‐I score for men without radiotherapy or DO was 1.98 ± 0.40 (“much better”); with radiotherapy or DO PGI‐I score was 3.80 ± 0.49 (“no difference”).ConclusionThe AdVance sling provides mid‐term improvement in men with PPI. However, men with radiotherapy or DO have significantly poorer outcomes with mid‐term results indicating a return to baseline degree of incontinence. Caution should be taken when considering the AdVance sling in these men. Pre‐op urodynamics in men with radiotherapy and/or overactive bladder may be important when considering men for AdVance sling. Neurourol. Urodynam. 36:1147–1150, 2017. © 2016 Wiley Periodicals, Inc.
Women in Transition: Experiences of Health and Health Care for Recently Incarcerated Women Living in Community Corrections Facilities
Authors: Colbert Alison M. , Goshin Lorie S. , Durand Vanessa , Zoucha Rick , Sekula L. Kathleen 
Published: July 2016

AbstractHealth priorities of women after incarceration remain poorly understood, constraining development of interventions targeted at their health during that time. We explored the experience of health and health care after incarceration in a focused ethnography of 28 women who had been released from prison or jail within the past year and were living in community corrections facilities. The women's outlook on health was rooted in a newfound core optimism, but this was constrained by their pressing health‐related issues; stress and uncertainty; and the pressures of the criminal justice system. These external forces threatened to cause collapse of women's core optimism. Findings support interventions that capitalize on women's optimism and address barriers specific to criminal justice contexts. © 2016 Wiley Periodicals, Inc.
What, Why, How – Creative Activities in Occupational Therapy Practice in Sweden
Authors: Müllersdorf Maria , Ivarsson Ann‐Britt 
Published: July 2016

AbstractCreative activities have historically been used in occupational therapy, and although their usage has declined in recent decades, they are still used in Swedish practice. The aim of this study was to better understand how occupational therapists use creative activities in practice. A web‐based survey was sent to 520 occupational therapists, of which 304 (58.5%) responded. The main reason identified for using creative activities was to strengthen the client's occupational performance, well‐being and self‐esteem. The expected outcomes of applying creative activities were to support the client in self‐expression and experiencing joy and desire. More than half of the occupational therapist respondents did not use creative activities to the extent they desired. Creative activities in occupational therapy are still used as a vital treatment to strengthen the clients' occupational performance abilities. The survey has looked at only a professional perspective on effectiveness of applying creative activities in occupational therapy. More research is needed to evaluate how occupational therapists internationally apply creative activities. There is also a need to gain information from the client's perspective on the therapeutic value of creative activities. Copyright © 2016 John Wiley & Sons, Ltd.
Effects of a glyphosate‐based herbicide on the uterus of adult ovariectomized rats
Authors: Varayoud Jorgelina , Durando Milena , Ramos Jorge G. , Milesi María M. , Ingaramo Paola I. , Muñoz‐de‐Toro Mónica , Luque Enrique H. 
Published: July 2016

ABSTRACTGlyphosate is the active ingredient of several herbicide formulations. Different reports suggest that glyphosate‐based herbicides (GBHs) may act as endocrine disruptors. We evaluated the potential estrogenic effects of a GBH formulation using the uterotrophic assay. Adult ovariectomized rats were sc injected for 3 consecutive days with: saline solution (vehicle control), 2.10−5 g E2/kg/day (uterotrophic dose; UE2), 2.10−7 g E2/kg/day (nonuterotrophic dose; NUE2), or 0.5, 5, or 50 mg GBH/kg/day of the. Twenty‐four hours after the last injection, the uterus was removed and weighed and processed for histopathology and mRNA extraction. Epithelial cell proliferation and height and expression of estrogen‐responsive genes were evaluated (estrogen receptors, ERα and ERβ; progesterone receptor, PR; complement 3, C3). Uterine weight and epithelial proliferation were not affected by GBH. However, the luminal epithelial cell height increased at GBH0.5. ERα mRNA was downregulated by all GBH doses and E2 groups, whereas PR and C3 mRNA were diminished by GBH0.5. GBH5‐, GBH50‐, and UE2‐treated rats showed downregulated ERα protein expression in luminal epithelial cells, while the receptor was upregulated in the stroma. GBH upregulated ERβ (GBH0.5–50) and PR (GBH5) expressions in glandular epithelial cells, similar effect to that of NUE2 group. These results indicate that, although the uterine weight was not affected, GBH modulates the expression of estrogen‐sensitive genes. © 2016 Wiley Periodicals, Inc. Environ Toxicol 32: 1191–1201, 2017.
Effects of depuration on histopathological changes in tilapia (Oreochromis niloticus) after exposure to cylindrospermopsin
Authors: Guzmán‐Guillén Remedios , Prieto Ortega Ana I. , Moreno Isabel M. , Ríos Victoria , Moyano Rosario , Blanco Alfonso , Vasconcelos Vitor , Cameán Ana M. 
Published: July 2016

ABSTRACTCylindrospermopsin (CYN) is a highly water‐soluble cytotoxin produced by several species of freshwater cyanobacteria and it is considered the second most studied cyanotoxin worldwide. CYN acts as a potent protein and glutathione synthesis inhibitor, as well as inducing genotoxicity, oxidative stress and histopathological alterations. Studies concerning the depuration of cyanobacterial toxins in aquatic organisms, especially in fish, are of great interest for fish economy and public health, but are scarce in the case of CYN. This is the first study reporting the ability of depuration (3 − 7 days) in reversing or ameliorating the histopathological lesions induced in liver, kidney, heart, intestines, and gills of tilapia (Oreochromis niloticus) due to exposure by immersion to repeated doses of a CYN‐containing culture of A. ovalisporum for 14 days. The main histopathological changes induced by CYN were glucogenic degeneration and loss of the normal hepatic cord‐structure (liver), hyperemia, dilated Bowman's capsule and cellular tumefaction (kidney), myofibrolysis, hemorrhages and edema (heart), necrosis and partial loss of microvilli (gastrointestinal tract), and hyperemia and inflammatory cells infiltrates (gills). After 3 days of depuration, gills were totally recovered, while the liver, kidney, and gastrointestinal tract required 7 days, and longer depuration periods may be needed for a full recovery of the heart. In addition, the morphometric study indicated that depuration managed to reverse the affectation in the hepatocytes nuclear diameters and cross sections of the proximal and distal convoluted tubules induced in CYN‐exposed fish. In general, these results validate depuration as an effective practice for detoxification of fish contaminated with CYN. © 2016 Wiley Periodicals, Inc. Environ Toxicol 32: 1318–1332, 2017.
Scoring Systems Used to Predict Bladder Dysfunction After Laparoscopic Rectal Cancer Surgery
Authors: Kim Hyung Ook , Cho Young Sam , Kim Hungdai , Lee Sung Ryol , Jung Kyung Uk , Chun Ho‐Kyung 
Published: July 2016

AbstractBackgroundPostoperative bladder dysfunction often occurs after rectal cancer surgery, necessitating long‐term urinary catheter drainage. The aim of this study was to evaluate the feasibility of early catheter removal and to propose scoring systems that may predict urinary dysfunction after laparoscopic rectal cancer surgery.MethodsA total of 110 patients who underwent elective laparoscopic rectal cancer surgery were included in this prospective observational study. The urinary catheter was removed on the first postoperative day.ResultsThe overall incidence of bladder dysfunction was 29.1 % (32/110). The incidence of bladder dysfunction was significantly higher in patients with an age of 65 years or older, male gender, and anastomosis levels from the anal verge of 6 cm or below (P = 0.03, 0.002, and 0.03, respectively). By setting a cut‐off of two of the risk factors, this simple scoring system can predict postoperative bladder dysfunction with sensitivity of 96.9 %, specificity of 50.0 %, and accuracy of 63.6 %. A scoring system based on regression coefficients was also conducted according to the following formula: bladder dysfunction predicting score = 18 (1 for male or 0 for female) +0.5 (age, years) −2 (anastomosis level, cm). With this method, a cut‐off value of 35+ points predicts postoperative bladder dysfunction with a sensitivity of 81.3 %, specificity of 71.8 %, and accuracy of 74.5 %.ConclusionsBladder dysfunction after laparoscopic rectal cancer surgery following early catheter removal occurred in 29.1 % of patients. Two scoring systems using three risk factors (age, male gender, and anastomosis level) may predict postoperative bladder dysfunction.
Insufficient Lymph Node Sampling in Patients with Colorectal Cancer Perforation is Associated with an Adverse Oncological Outcome
Authors: Sugawara Kotaro , Kawaguchi Yoshikuni , Nomura Yukihiro , Koike Daisuke , Nagai Motoki , Tanaka Nobutaka 
Published: July 2016

AbstractBackgroundThe impact of lymph node (LN) dissection on long‐term outcomes for patients with colorectal cancer (CRC) perforation remains unclear. We aim to investigate factors associated with poor prognosis and recurrence in patients with CRC, with special reference to cancer perforation and LN dissection.MethodsThe subjects comprised 550 patients who underwent colorectal surgery for CRC at Stage II or III (TNM classification) between February 2006 and November 2013. Short‐ and long‐term outcomes of patients with or without CRC perforation were evaluated. We also sought risk factors on poor prognosis, focusing on LN dissection in patients with CRC perforation.ResultsA total of 508 underwent surgery for CRC without perforation (the non‐perforation group) and 39 for CRC with perforation (the perforation group). Both overall survival and recurrence‐free survival rates were significantly lower in the perforation group than in the non‐perforation group (overall survival, P = 0.009; recurrence‐free survival, P < 0.001). The relapse rates at the peritoneum (P = 0.002), lung (P = 0.007) and LNs (P = 0.021) were significantly higher in the perforation group than in the non‐perforation group. Multivariable Cox proportional hazards model revealed that CRC perforation (hazard ratio [HR] 2.55, 95 % confidential interval [CI] 1.16–4.98, P = 0.022), LN dissection <12 (HR 1.83, 95 % CI 1.07–3.13, P = 0.027), and Stage III (HR 1.79, 95 % CI 1.06–3.08, P = 0.031) were significant and independent risk factors for poor prognosis.ConclusionsConducting <12 LN dissections independently increased the risk of reduction in overall survival for patients with CRC perforation. Thus, radical LN dissections should be performed to improve patients’ survival rates, when patients’ general and surgical conditions allow.
Law and Society in the Evolution of Malaysia’s Islamic Capital Market Regulation
Authors: CHEN Vivien 
Published: July 2016

AbstractThe strong growth of Islamic capital markets internationally has seen the corresponding development of regulatory frameworks incorporating sharia law. Malaysia has been at the forefront of Islamic capital market regulatory development, merging corporate law drawn from its common-law heritage with sharia principles. This article examines the interaction of law with political economy and sociocultural influences in Malaysia which has underpinned the evolution of hybrid Islamic capital market regulation. It analyses the evolution of Malaysian Islamic capital market regulation against theories of legal origin and legal evolution. The analysis suggests that the sharia and common-law components of Islamic capital market regulation have evolved along two separate and seemingly inconsistent trajectories. While the secular corporate law component continues to evolve in tandem with its common-law tradition, development of the sharia component represents a distinct shift away from common-law traditions.
Validation of the new Vancouver Chest Pain Rule in Asian chest pain patients presenting at the emergency department
Authors: Ong Marcus Eng Hock , Hao Ying , Yap Susan , Pek Pin Pin , Chua Terrance Siang Jin , Ng Faith Suan Peng , Lim Swee Han 
Published: July 2016

AbstractObjectivesThe new Vancouver Chest Pain (VCP) Rule recommends early discharge for chest pain patients who are at low risk of developing acute coronary syndrome (ACS), and thus can be discharged within 2 hours of arrival at the emergency department (ED). This study aimed to assess the performance of the new VCP Rule for Asian patients presenting with chest pain at the ED.MethodsThis prospective cohort study involved patients attended to at the ED of a large urban centre. Patients of at least 25 years old, presenting with stable chest pain and a non-diagnostic ECG, and with no history of active coronary artery disease were included in the study. The main outcome measures were cardiac events, angioplasty, or coronary artery bypass within 30 days of enrolment.ResultsThe study included 1690 patients from 27 August 2000 to 1 May 2002, with 661 patients fulfilling the VCP criteria. Of those for early discharge, 24 had cardiac events and 13 had angioplasty or bypass at 30 days, compared to 91 and 41, respectively, for those unsuitable for discharge. This gave the rule a sensitivity of 78.1% for cardiac events, including angioplasty and bypass. Specificity was 41.0%, and negative predictive value (NPV) was 94.4%.ConclusionWe found the new VCP Rule to have moderate sensitivity and poor specificity for adverse cardiac events in our population. With an NPV of less than 100%, this means that a small proportion of patients sent home with early discharge would still have adverse cardiac events.