bluuebunny/crossref_metadata_2025_split huggingface dataset:
Can Genetics Research Benefit Educational Interventions for All?
Authors: Asbury Kathryn 
Published: September 2015

AbstractPretty much everyone knows that our genes have at least something to do with how able or how high achieving we are. Some believe that we should not speak of this common knowledge, nor inquire into how genetic influence works or what it might mean. If we do not keep an open mind to the fact of genetic influence on academic achievement, however, then we cannot explore its possible implications. And if we do not consider the implications, then we cannot, as a society, harness any potential benefits or avoid possible pitfalls. So that's what this essay is about—exploring what behavioral genetics research might be able to offer to educational theory, policy, and practice.We cannot yet use biological information to make accurate predictions for all children. We do know, however, that academic achievement is heritable, which is to say that differences between individuals are influenced by differences in their DNA. If genes are part of the problem for some pupils (to take the negative spin on this), then it seems likely that studying them could be part of a solution. And that's what behavioral geneticists are trying to do—to chart and understand pathways from DNA to behavior and to identify interventions that can maximize outcomes for all. The fact is, though, that we have an awfully long way to go.
Differential osteogenic potential of human adipose‐derived stem cells co‐cultured with human osteoblasts on polymeric microfiber scaffolds
Authors: Rozila Ismail , Azari Pedram , Munirah Sha'ban , Wan Safwani Wan Kamarul Zaman , Gan Seng Neon , Nur Azurah Abdul Ghani , Jahendran Jeevanan , Pingguan‐Murphy Belinda , Chua Kien Hui 
Published: September 2015

AbstractThe osteogenic potential of human adipose‐derived stem cells (HADSCs) co‐cultured with human osteoblasts (HOBs) using selected HADSCs/HOBs ratios of 1:1, 2:1, and 1:2, respectively, is evaluated. The HADSCs/HOBs were seeded on electrospun three‐dimensional poly[(R)−3‐hydroxybutyric acid] (PHB) blended with bovine‐derived hydroxyapatite (BHA). Monocultures of HADSCs and HOBs were used as control groups. The effects of PHB–BHA scaffold on cell proliferation and cell morphology were assessed by AlamarBlue assay and field emission scanning electron microscopy. Cell differentiation, cell mineralization, and osteogenic‐related gene expression of co‐culture HADSCs/HOBs were examined by alkaline phosphatase (ALP) assay, alizarin Red S assay, and quantitative real time PCR, respectively. The results showed that co‐culture of HADSCs/HOBs, 1:1 grown into PHB–BHA promoted better cell adhesion, displayed a significant higher cell proliferation, higher production of ALP, extracellular mineralization and osteogenic‐related gene expression of run‐related transcription factor, bone sialoprotein, osteopontin, and osteocalcin compared to other co‐culture groups. This result also suggests that the use of electrospun PHB–BHA in a co‐culture HADSCs/HOBs system may serve as promising approach to facilitate osteogenic differentiation activity of HADSCs through direct cell‐to‐cell contact with HOBs. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 377–387, 2016.
Biomimetic hybrid porous scaffolds immobilized with platelet derived growth factor‐BBpromote cellularization and vascularization in tissue engineering
Authors: Murali Ragothaman , Ponrasu Thangavel , Cheirmadurai Kalirajan , Thanikaivelan Palanisamy 
Published: September 2015

AbstractDevelopment of hybrid scaffolds with synergistic combination of growth factor is a promising approach to promote earlyin vivowound repair and tissue regeneration. Here, we show the rapid wound healing in Wistar albino rats using biomimetic collagen‐poly(dialdehyde) guar gum based hybrid porous scaffolds covalently immobilized with platelet derived growth factor‐BB. The immobilized platelet derived growth factor in the hybrid scaffolds not only enhance the total protein, collagen, hexosamine, and uronic acid contents in the granulation tissue but also provide stronger tissues. The wound closure analysis reveal that the complete epithelialization period is 15.4 ± 0.9 days for collagen‐poly(dialdehyde) guar gum‐platelet derived growth factor hybrid scaffolds, whereas it is significantly higher for control, collagen, collagen‐ poly(dialdehyde) guar gum and povidine‐iodine treated groups. Further, the histological evaluation shows that the immobilized platelet derived growth factor in the hybrid scaffolds induced a more robust cellular and vascular response in the implanted site. Hence, we demonstrate that the collagen‐poly(dialdehyde) guar gum hybrid scaffolds loaded with platelet derived growth factor stimulates chemotactic effects in the implanted site to promote rapid tissue regeneration and wound repair without the assistance of antibacterial agents. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 388–396, 2016.
Prenatal diagnosis of proximal focal femoral deficiency: Literature review of prenatal sonographic findings
Authors: D'Ambrosio Valentina , Pasquali Gaia , Squarcella Antonia , Marcoccia Eleonora , Filippis Angela De , Gatto Silvia , Camilla Aliberti , Pizzuti Antonio , Torre Renato La , Giancotti Antonella 
Published: September 2015

ABSTRACTProximal focal femoral deficiency (PFFD) is a rare musculoskeletal malformation that occurs in 0.11–0.2 per 10,000 live births. This congenital anomaly involves the pelvis and proximal femur with widely variable manifestations, from mild femoral shortening and hypoplasia to the absence of any functional femur and acetabular aplasia. Prenatal diagnosis of PFFD is still a challenge, but early recognition of this malformation could provide useful information to both parents and physicians concerning management and therapeutic planning. For this review, we analyzed all the cases of prenatally diagnosed PFFD that were reported in the literature from 1990 to 2014 and provide a description of the most common prenatal sonographic findings. © 2015 Wiley Periodicals, Inc. J Clin Ultrasound 44:252–259, 2016
Statistical control in correlational studies: 10 essential recommendations for organizational researchers
Authors: Becker Thomas E. , Atinc Guclu , Breaugh James A. , Carlson Kevin D. , Edwards Jeffrey R. , Spector Paul E. 
Published: September 2015

SummaryStatistical control is widely used in correlational studies with the intent of providing more accurate estimates of relationships among variables, more conservative tests of hypotheses, or ruling out alternative explanations for empirical findings. However, the use of control variables can produce uninterpretable parameter estimates, erroneous inferences, irreplicable results, and other barriers to scientific progress. As a result, methodologists have provided a great deal of advice regarding the use of statistical control, to the point that researchers might have difficulties sifting through and prioritizing the available suggestions. We integrate and condense this literature into a set of 10 essential recommendations that are generally applicable and which, if followed, would substantially enhance the quality of published organizational research. We provide explanations, qualifications, and examples following each recommendation. Copyright © 2015 John Wiley & Sons, Ltd.
A probabilistic approach to ship voyage reconstruction in ICOADS
Authors: Carella Giulia , Kent Elizabeth C. , Berry David I. 
Published: September 2015

ABSTRACTThe International Comprehensive Ocean‐Atmosphere Data Set (ICOADS) provides the main archive for surface marine observations for the past approximately 150 years. ICOADS ship identifier (ID) information is often missing or unusable, preventing the linking of reports to an individual ship. A method for the reconstruction of ship voyages in ICOADS is presented, by which groups of reports can be associated with an individual ship or ship track. The method defines a function representing the probability density function (pdf) of any particular report being associated with a group of reports. The parameters of the pdf are calculated from the ship data themselves, giving the likely variation of a ship report perpendicular to its overall direction of travel. For groups of reports with ID information, the PDF is used to associate reports without ID information with the known‐ID track. Reports without ID information are then clustered together to form the most probable track. Results are shown for the period 1855–1969. Both the percentage of reports associated with tracks and the length of those tracks increase substantially following tracking. Initial validation of the results was performed by visual inspection: the model implementation was then refined to improve the results. Confidence in the tracking is increased by a demonstration that the method clusters together reports with similar sea surface temperature characteristics. Issues in the data were found to be one of the main challenges in implementing the tracking technique. Particular problems encountered included the coarse resolution of some position information; reports that were mispositioned in either space or time; unidentified duplicate reports; and the fragmentation of voyages between different ICOADS acquisition sources. Some of these effects could be ameliorated by pre‐processing of ICOADS reports, however a full reprocessing of the historical input sources to ICOADS would be required to make further improvements.
Ultraviolet light‐emitting‐diode irradiation inhibits TNF‐α and IFN‐γ‐induced expression of ICAM‐1 and STAT1 phosphorylation in human keratinocytes
Authors: Kwon Tae‐Rin , Oh Chang Taek , Choi Eun Ja , Kim Soon Re , Jang Yu‐Jin , Ko Eun Jung , Suh Daewoong , Yoo Kwang Ho , Kim Beom Joon 
Published: September 2015

Background and ObjectivesUltraviolet light‐emitting diodes (UV‐LEDs) are a novel light source for phototherapy. This research investigated the in vitro safety and efficacy of UV‐LEDs as a phototherapeutic device for atopic dermatitis (AD).Study Design/Materials and MethodsHuman keratinocytes and fibroblasts were irradiated by UV‐LEDs with a center wavelength of 310 and 340 nm. We examined the effects of UV‐LED irradiation on the suppression of TNF‐α/IFN‐γ‐induced activation of STAT1 and ICAM‐1 and on NF‐κB expression; we used the following methods: cell viability assay, reverse transcription‐polymerase chain reaction, enzyme‐linked immunosorbent assay, Western blotting, and immunocytochemistry.ResultsWe observed anti‐inflammatory responses through the suppression of TNF‐α/IFN‐γ‐induced expression of TARC and MCP‐1/CCL2, IL‐1beta, IL‐6, and sICAM‐1 via blockage of ICAM‐1 activation and subsequent activation of STAT1 and NF‐κB. The results suggested that UV‐LED irradiation inhibited ICAM expression by suppressing TNF‐α/IFN‐γ‐induced NF‐κB activation in vitro.ConclusionWe concluded that novel UV‐LED (310 and 340 nm) modalities were effective for the treatment of AD and may be promising for the treatment of inflammatory skin diseases. Lasers Surg. Med. 47:824–832, 2015. © 2015 Wiley Periodicals, Inc.
Interdisciplinary treatment of post‐concussion and post‐traumatic headaches
Authors: Ducic Ivica , Sinkin Jeremy C. , Crutchfield Kevin E. 
Published: September 2015

IntroductionChronic headaches following concussion are debilitating and difficult to treat. Commonly employed initial therapeutic modalities include pharmacologic, physical, and psychological interventions. Despite these efforts, a subset of patients with chronic pain remains. Peripheral nerve surgery has never before been reported as an effective treatment for the management of post‐concussion headaches. In this study, we report on our early outcomes following peripheral nerve surgery for this novel indication.MethodsA retrospective review of 28 consecutive patients with post‐concussion headaches who underwent occipital nerve surgery was performed. Preoperative and postoperative headache pain was evaluated on visual analog scale (VAS) in 24 patients with at least 6 months follow‐up.ResultsThe average VAS headache pain reduced from 6.4 preoperatively, to 1.4 (P < 0.0001). Twenty‐one patients (88%) had a successful outcome of at least a 50% reduction in their VAS following peripheral nerve surgery. Additionally, twelve patients (50%) were pain free at time of final follow‐up. There were no surgical complications.ConclusionsEarly results indicate peripheral nerve surgery is a safe and effective new therapy for post‐concussion headaches in the properly selected patients, whose chronic pain persists despite initial treatments by a neurologist, specialized in headache management. Future studies should focus on larger patient populations, and examine the long‐term durability of outcome. In the meantime, an interdisciplinary approach involving neurologists and a peripheral nerve surgeon is suggested for the care of patients with refractory chronic post‐concussion occipital neuralgia and other post‐traumatic chronic headaches. © 2015 Wiley Periodicals, Inc. Microsurgery 35:603–607, 2015.
Compact wideband and dual‐band antenna with directional patterns
Authors: Wang Hao , Liu Shu‐Fang , Zhang Lei , Li Ping , Chen Lei , Shi Xiao‐Wei 
Published: September 2015

ABSTRACTA compact wideband and dual‐band antenna with directional patterns is proposed. The antenna is mainly composed of three substrates, a rectangular radiation patch, a slotted ground, a microstrip feed line, and an L‐shaped feeding structure that consists of a rectangular patch and a cuboid metal. Using the L‐shaped feeding structure, the antenna can operate in a high‐order mode, and a wideband and dual‐band antenna is achieved. The measured impedance bandwidths are 10.0% (12.3–13.6 GHz) for the lower frequency band, and 22.3% (16.7–20.9 GHz) for the higher frequency band. The radiation patterns at two pass‐bands are stable, and the average gains at lower and higher frequency are 7.0 dBi and 5.7 dBi, respectively. The details of the antenna design, the operation mechanism, and the simulated and measured results are presented. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:2742–2745, 2015
A compact UWB antenna with reconfigurable dual notch bands
Authors: Srivastava Gunjan , Dwari Santanu , Kanaujia Binod Kumar 
Published: September 2015

ABSTRACTTo effectively utilize the entire ultrawideband (UWB) spectrum in case of no interference scenarios, a UWB antenna having reconfigurable dual band notch characteristics at WiMAX and WLAN band of frequencies is presented in this article. The p‐i‐n diodes and capacitors are properly placed in the UWB antenna to achieve the reconfigurable band notch function. The proposed antenna has the wide impedance bandwidth of 8 GHz (from 2.7 to 10.7 GHz). The four possible combinations of three p‐i‐n diodes are used to obtain single/dual reconfigurable notch bands in entire UWB band. The rejected WiMAX and WLAN band of frequencies are centered at 3.6 GHz and 5.5 GHz, respectively. The size of the proposed antenna is 27 × 32 mm2. The measured results are in good agreement with the simulated results. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:2737–2742, 2015
Dual‐band bandpass filter based on λ/4‐resonators for Wi‐Fi application
Authors: Barbuddhye Vinod , Kakade Anandrao 
Published: September 2015

ABSTRACTThis article presents, a novel dual‐band bandpass filter based on λ/4 uniform impedance resonators (UIRs). The design consists of four λ/4 UIRs, two for each band. The λ/4‐resonators are coupled through alternate J/K‐inverters. A weak input–output coupling is introduced to add pair of transmission zeros outside each passband, which improves the cut‐off of the filter. The filter is designed for Wi‐Fi 2.4 and 3.6 GHz bands. The filter is designed in FEKO electromagnetic simulator using FR‐4 substrate having dielectric constant 4.4 and thickness of 1.6 mm. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:2758–2761, 2015
A novel combinatorial triangle‐type AMC structure for RCS reduction
Authors: Hong Tao , Dong Han , Wang Jun , Ning Huansheng , Wei Yuan , Mao Lingfeng 
Published: September 2015

ABSTRACTA novel combinatorial triangle‐type artificial magnetic conductor (AMC) structure for radar cross section (RCS) reduction is presented in this article. The AMC part in conventional chessboard configuration is replaced with four triangle‐type AMC parts, so that the power can be transferred into more directions leading to the peak scattered field reduction. A simplified model is constructed to analyze the behavior of the proposed structure. The simulated results show that the peak value is reduced by more than 5 dB compared with the conventional chessboard configuration and the bistatic RCS is below −10 dB in a wide angular range from theta = −25° to 25°. Moreover, measurement of the monostatic RCS for the proposed structure is also conducted. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:2728–2732, 2015
Reduced size of slotted‐fractal Koch log‐periodic antenna for 802.11af TVWS application
Authors: Rahman Nur Akmal Abd. , Jamlos Mohd Faizal , Lago Herwansyah , Jamlos Mohd Aminudin , Soh P. J. , Al‐Hadi Azremi Abdullah 
Published: September 2015

ABSTRACTA reduced size of log‐periodic fractal Koch antenna (LPFKA) design with rectangular slots for Television White Space Spectrum (TVWS) bands application is proposed in this letter. The new introduced design technique of tilted rectangular slots into the fractal Koch radiating elements found out to enhance the impedance bandwidth as well as realizing high gain and reducing the size of log‐periodic antenna. The 10 LPFKA's radiating elements are located on both sides of the substrate in a crisscross arrangement and obtained 15.3% miniaturization as well as 50.79% bandwidth and maximum of 36% gain increment. The proposed antenna has a largest dimension of 305 × 280 mm2, that is 0.44λ × 0.48λ over the lowest operating frequency of the 0.47–0.79 GHz TVWS bands. This antenna exhibits high gains of between 4.41 and 7.2 dBi and stable radiation patterns throughout the required UHF TVWS bands. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:2732–2737, 2015
A stacked sierpinski gasket fractal antenna with a defected ground structure for UWB/WLAN/RADIO astronomy/STM Link applications
Authors: Kaur Amanpreet , Khanna Rajesh , Kartikeyan Machavaram V. 
Published: September 2015

ABSTRACTAn aperture coupled stacked Sierpinski gasket fractal antenna with a defected ground structure is proposed in the current article for ultra wide band (UWB) and wireless local area network (WLAN) applications. The radiating structure is formed of two Sierpinski gasket fractal patch antenna layers on two layers of FR4 substrate stacked one over the other. This stacked structure is fed by a third (bottom) layer also of FR4 substrate, with ground layer at its top and the feed line with a stub, at the bottom. The top ground layer has a ‘†’ shaped slot cut in it to provide a wideband behavior to the antenna, and the feed line is designed with a stub to provide circular polarization to the EM fields radiated by the proposed antenna. The antenna is designed using CST Microwave Studio version 2010 assuming perfect boundary conditions. The proposed antenna shows a dual band wideband behavior with an impedance bandwidth of 630 MHz (4.75–5.38 GHz) and 400 MHz (6.8–7.2 GHz) with a gain of 5.85 dB and 9.5 dB at the center frequencies of the two bands, respectively. The antenna is capable of covering two UWB bands from (4.75–5.28) GHz and (6.8–7.2) GHz, a radio astronomy band from (5.01–5.03) GHz and IEEE 802.11a band from (5.15–5.35) GHz. The prototype of the proposed antenna is tested using a VNA and an anechoic chamber to validate against the simulated results. The proposed antenna has volumetric dimensions of 6 × 6 × 0.483 cm3 which makes it a suitable choice for RF front end circuits. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:2786–2792, 2015
Broadband circularly polarized antennas with center‐slot‐feeding
Authors: Wu Jianjun , Hu Wei , Yin Yingzeng , Lian Ruina 
Published: September 2015

ABSTRACTCenter‐slot‐feeding technique for circularly polarized (CP) antennas is presented in this letter. The first CP patch is cut by T‐shaped crossed slot with different lengths. And the second is a corner‐truncated patch with H‐shaped slot. Both of the antennas are fed by balance‐like parallel strips at the center. Measured results show that the antenna with crossed slot obtains bandwidths of 20.3% (2.21–2.71 GHz) for |S11| <−10 dB and 18.5% (2.16–2.6 GHz) for axial ratio (AR) <3dB. The corner‐truncated patch with parasitic strips has bandwidths of 23.9% (2.14–2.72 GHz) for |S11| <–10 dB and 17.1% (2.21–2.62 GHz) for AR <3 dB. Most notably, due to the slot‐center‐feeding mechanism, good radiation patterns with low cross polarization and stable gain of over 8 and 8.5 dBic are obtained. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:2793–2797, 2015
A compact K‐band electromagnetic band gap antenna design for communication systems
Authors: Kandwal Abhishek , Pongpaibool Pornanong , Siwamogsatham Siwaruk 
Published: September 2015

ABSTRACTThis article proposed a novel compact antenna design for K‐band applications using electromagnetic band gap (EBG) structure. A very compact design has been fabricated on a Rogers Duroid 4350 substrate and is multilayered with another substrate of similar dimensions. The design consists of circular patch and circular rings both as active antenna elements and EBG structures. The proposed antenna resonates at a frequency of 18.72 GHz with a wide band of about 1 GHz and a gain of 8.1 dBi along with a reduced side lobe level of −11.6 dB. The electromagnetic band structure incorporated along with a multilayer structure resulted in enhancement of impedance bandwidth and improvement in radiation characteristics. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:2778–2781, 2015
Measured characteristics of a planar array of parasitic elements fed by one active element
Authors: Salas‐Sánchez Aaron A. , Fondevila‐Gómez Javier , Rodríguez‐González Juan A. , Ares‐Pena Francisco J. 
Published: September 2015

ABSTRACTAn antenna design based on the use of an active dipole placed above a ground plane with an array of parasitic dipoles is presented. The presence of the parasitic dipoles increases the effective antenna size and significantly improves directivity over that of an isolated dipole in front of a ground plane. In addition, the use of just one active element makes for a very simple feed network that reduces the complexity of the antenna. As an application of this technique, a planar array of 48 parasitic dipoles above a ground plane, fed by a single active dipole at 5 GHz, was designed to afford a pencil beam pattern of moderate gain and bandwidth. Measurements agree well with theory. With a protective radome in place, directivity and gain were, respectively, 15.30 and 14.78 dB, the sidelobe level −6.15 dB, and the bandwidth 12.7% for S11 < −10 dB and 3.1% for gain loss <3 dB. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:2807–2809, 2015